Trane IntelliPak 1 Installation And Maintenance Manual

Installation, Operation, and Maintenance

IntelliPak™™ 1 with Symbio

®®

800

Commercial Packaged Rooftop Air Conditioners with VAV or SZVAV Controls and eFlex™/ eDrive™

SSAAFFEETTYY WWAARRNNIINNGG

Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.

April 2022

RRTT--SSVVXX007722AA--EENN

Introduction

WARNING

CAUTION

NOTICE

Read this manual thoroughly before operating or servicing this unit.

Warnings, Cautions, and Notices

Safety advisories appear throughout this manual as required. Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions.

The three types of advisories are defined as follows:

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. It could also be used to alert against unsafe practices.

Indicates a situation that could result in equipment or property-damage only accidents.

Important Environmental Concerns

Scientific research has shown that certain man-made chemicals can affect the earth’s naturally occurring stratospheric ozone layer when released to the atmosphere. In particular, several of the identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all refrigerants containing these compounds have the same potential impact to the environment. Trane advocates the responsible handling of all refrigerants-including industry replacements for CFCs and HCFCs such as saturated or unsaturated HFCs and HCFCs.

Important Responsible Refrigerant Practices

Trane believes that responsible refrigerant practices are important to the environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certified according to local rules. For the USA, the Federal Clean Air Act (Section

608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures. In addition, some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants. Know the applicable laws and follow them.

WWAARRNNIINNGG

PPrrooppeerr FFiieelldd WWiirriinngg aanndd GGrroouunnddiinngg RReeqquuiirreedd!!

FFaaiilluurree ttoo ffoollllooww ccooddee ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. AAllll ffiieelldd wwiirriinngg MMUUSSTT bbee ppeerrffoorrmmeedd bbyy qquuaalliiffiieedd ppeerrssoonnnneell.. IImmpprrooppeerrllyy iinnssttaalllleedd aanndd ggrroouunnddeedd ffiieelldd wwiirriinngg ppoosseess FFIIRREE aanndd EELLEECCTTRROOCCUUTTIIOONN hhaazzaarrddss.. TToo aavvooiidd tthheessee hhaazzaarrddss,, yyoouu MMUUSSTT ffoollllooww rreeqquuiirreemmeennttss ffoorr ffiieelldd wwiirriinngg iinnssttaallllaattiioonn aanndd ggrroouunnddiinngg aass ddeessccrriibbeedd iinn NNEECC aanndd yyoouurr llooccaall// ssttaattee//nnaattiioonnaall eelleeccttrriiccaall ccooddeess..

WWAARRNNIINNGG

PPeerrssoonnaall PPrrootteeccttiivvee EEqquuiippmmeenntt ((PPPPEE)) RReeqquuiirreedd!!

FFaaiilluurree ttoo wweeaarr pprrooppeerr PPPPEE ffoorr tthhee jjoobb bbeeiinngg uunnddeerrttaakkeenn ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. TTeecchhnniicciiaannss,, iinn oorrddeerr ttoo pprrootteecctt tthheemmsseellvveess ffrroomm ppootteennttiiaall eelleeccttrriiccaall,, mmeecchhaanniiccaall,, aanndd cchheemmiiccaall hhaazzaarrddss,, MMUUSSTT ffoollllooww pprreeccaauuttiioonnss iinn tthhiiss mmaannuuaall aanndd oonn tthhee ttaaggss,, ssttiicckkeerrss,, aanndd llaabbeellss,, aass wweellll aass tthhee iinnssttrruuccttiioonnss bbeellooww::

•• BBeeffoorree iinnssttaalllliinngg//sseerrvviicciinngg tthhiiss uunniitt,, tteecchhnniicciiaannss MMUUSSTT ppuutt oonn aallll PPPPEE rreeqquuiirreedd ffoorr tthhee wwoorrkk bbeeiinngg uunnddeerrttaakkeenn ((EExxaammpplleess;; ccuutt rreessiissttaanntt gglloovveess//sslleeeevveess,, bbuuttyyll gglloovveess,, ssaaffeettyy ggllaasssseess,, hhaarrdd hhaatt//bbuummpp ccaapp,, ffaallll pprrootteeccttiioonn,, eelleeccttrriiccaall PPPPEE aanndd aarrcc ffllaasshh ccllootthhiinngg)).. AALLWWAAYYSS rreeffeerr ttoo aapppprroopprriiaattee SSaaffeettyy DDaattaa SShheeeettss ((SSDDSS)) aanndd OOSSHHAA gguuiiddeelliinneess ffoorr pprrooppeerr PPPPEE..

•• WWhheenn wwoorrkkiinngg wwiitthh oorr aarroouunndd hhaazzaarrddoouuss cchheemmiiccaallss,, AALLWWAAYYSS rreeffeerr ttoo tthhee aapppprroopprriiaattee SSDDSS aanndd OOSSHHAA//GGHHSS ((GGlloobbaall HHaarrmmoonniizzeedd SSyysstteemm ooff CCllaassssiiffiiccaattiioonn aanndd LLaabbeelllliinngg ooff CChheemmiiccaallss)) gguuiiddeelliinneess ffoorr iinnffoorrmmaattiioonn oonn aalllloowwaabbllee ppeerrssoonnaall eexxppoossuurree lleevveellss,, pprrooppeerr rreessppiirraattoorryy pprrootteeccttiioonn aanndd hhaannddlliinngg iinnssttrruuccttiioonnss..

•• IIff tthheerree iiss aa rriisskk ooff eenneerrggiizzeedd eelleeccttrriiccaall ccoonnttaacctt,, aarrcc,, oorr ffllaasshh,, tteecchhnniicciiaannss MMUUSSTT ppuutt oonn aallll PPPPEE iinn aaccccoorrddaannccee wwiitthh OOSSHHAA,, NNFFPPAA 7700EE,, oorr ootthheerr ccoouunnttrryy--ssppeecciiffiicc rreeqquuiirreemmeennttss ffoorr aarrcc ffllaasshh pprrootteeccttiioonn,, PPRRIIOORR ttoo sseerrvviicciinngg tthhee uunniitt.. NNEEVVEERR PPEERRFFOORRMM AANNYY SSWWIITTCCHHIINNGG,, DDIISSCCOONNNNEECCTTIINNGG,, OORR VVOOLLTTAAGGEE TTEESSTTIINNGG WWIITTHHOOUUTT PPRROOPPEERR EELLEECCTTRRIICCAALL PPPPEE AANNDD AARRCC FFLLAASSHH CCLLOOTTHHIINNGG.. EENNSSUURREE EELLEECCTTRRIICCAALL MMEETTEERRSS AANNDD EEQQUUIIPPMMEENNTT AARREE PPRROOPPEERRLLYY RRAATTEEDD FFOORR IINNTTEENNDDEEDD VVOOLLTTAAGGEE..

RT-SVX072A-EN

IInnttrroodduuccttiioonn

WWAARRNNIINNGG

FFoollllooww EEHHSS PPoolliicciieess!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy..

•• AAllll TTrraannee ppeerrssoonnnneell mmuusstt ffoollllooww tthhee ccoommppaannyy’’ss EEnnvviirroonnmmeennttaall,, HHeeaalltthh aanndd SSaaffeettyy ((EEHHSS)) ppoolliicciieess wwhheenn ppeerrffoorrmmiinngg wwoorrkk ssuucchh aass hhoott wwoorrkk,, eelleeccttrriiccaall,, ffaallll pprrootteeccttiioonn,, lloocckkoouutt// ttaaggoouutt,, rreeffrriiggeerraanntt hhaannddlliinngg,, eettcc.. WWhheerree llooccaall rreegguullaattiioonnss aarree mmoorree ssttrriinnggeenntt tthhaann tthheessee ppoolliicciieess,, tthhoossee rreegguullaattiioonnss ssuuppeerrsseeddee tthheessee ppoolliicciieess..

•• NNoonn--TTrraannee ppeerrssoonnnneell sshhoouulldd aallwwaayyss ffoollllooww llooccaall rreegguullaattiioonnss..

Overview of Manual

NNoottee:: This document is customer property and must be

retained by the unit owner for use by maintenance personnel.

This unit is equipped with Symbio 800 controls. Refer to the “Start-Up” and “Manual Override” procedures within this Installation, Operation, and Maintenance manual and the latest edition of the appropriate programming manual for Variable Air Volume (VAV), or Single Zone Variable Air Volume (SZVAV) applications before attempting to operate or service this equipment.

IImmppoorrttaanntt:: The procedures discussed in this manual

should only be performed by qualified and experienced HVAC technicians.

This booklet describes proper installation, start-up, operation, and maintenance procedures for 20 through 130 ton rooftop air conditioners designed for Single Zone VAV (SZVAV), and Variable Air Volume (VAV) applications. By carefully reviewing the information within this manual and following the instructions, the

risk of improper operation and/or component damage will be minimized.

NNoottee:: One copy of the appropriate service literature

ships inside the control panel of each unit.

It is important that periodic maintenance be performed to help assure trouble-free operation. Should equipment failure occur, contact a qualified service organization with qualified, experienced HVAC technicians to properly diagnose and repair this equipment.

IImmppoorrttaanntt:: DO NOT release refrigerant to the

atmosphere!

If adding or removing refrigerant is required, the service technician must comply with all federal, state, and local laws.

Copyright

This document and the information in it are the property of Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to revise this publication at any time, and to make changes to its content without obligation to notify any person of such revision or change.

Trademarks

All trademarks referenced in this document are the trademarks of their respective owners.

Factory Training

Factory training is available through Trane University™ to help you learn more about the operation and maintenance of your equipment. To learn about available training opportunities contact Trane University™.

Online:

Phone: 855-803-3563

Email: traneuniversity@trane.com

www.trane.com/traneuniversity

RT-SVX072A-EN

3

Table of Contents

Model Number Description. . . . . . . .. . . . . . . . . 7

20 to 75 Tons, Air Cooled. . . . . . . . . . . . . . . . . . 7

90 to 130 Tons, Air Cooled. . . . . . . . . . . . . . . . 10

General Information . .. . . . . . . . . .. . . . . . . . . .. 12

Unit Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . 12

Compressor Nameplate . . . . . . . . . . . . . . . . . . 12

Gas Heat Nameplate . . . . . . . . . . . . . . . . . . . . . 12

Unit Description . . . . . . . . . . . . . . . . . . . . . . . . . 12

Pre-Installation . . . . . . . . . . .. . . . . . . . . .. . . . . . . 13

Unit Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Exterior Inspection . . . . . . . . . . . . . . . . . . . 13

Inspection for Concealed

Damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Unit Clearances . . . . . . . . . . . . . . . . . . . . . . . . . 13

Unit Dimensions and Weight

Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Factory Warranty Information . . . . . . . . . . . . 14

All Unit Installations. . . . . . . . . . . . . . . . . . 14

Additional Requirements for Units

Requiring Disassembly . . . . . . . . . . . . . . . 14

Installation Checklist . . . . . . . . . . . . . . . . . . . . . 15

General Checklist (Applies to all

units) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Main Electrical Power

Requirements . . . . . . . . . . . . . . . . . . . . . . . 15

Field Installed Control Wiring . . . . . . . . . 15

Requirements for Electric Heat

Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Requirements for Gas Heat

Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Requirements for Hot Water Heat

(SLH_) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Requirements for Steam Heat (SSH_

) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

O/A Pressure Sensor and Tubing Installation (All units with Statitrac or

Return Fans). . . . . . . . . . . . . . . . . . . . . . . . . 16

Requirements for Modulating

Reheat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Dimensional Data . . . . . . . . . . .. . . . . . . . . . .. . . 17

Center of Gravity . . . . . . . . . . . . . . . . . . . . . . . . 24

Electrical Entry Details . . . . . . . . . . . . . . . . . . . 25

Minimum Required Clearance . . . . . . . . . . . . 27

Weights . . . . . .. . . . . . . . .. . . . . . . . . .. . . . . . . . . . 28

Installation . . . . . . . . .. . . . . . . . . .. . . . . . . . .. . . . 30

Roof Curb and Ductwork . . . . . . . . . . . . . . . . . 30

Pitch Pocket Location. . . . . . . . . . . . . . . . . 30

Unit Rigging and Placement . . . . . . . . . . . . . . 31

General Installation Requirements . . . . . . . . 32

Rigging the Unit . . . . . . . . . . . . . . . . . . . . . 32

Main Electrical Power . . . . . . . . . . . . . . . . 33

Field Installed Control Wiring . . . . . . . . . 33

Electric Heat Units . . . . . . . . . . . . . . . . . . . 33

Gas Heat (SFH_) . . . . . . . . . . . . . . . . . . . . . 33

Hot Water Heat (SLH_) . . . . . . . . . . . . . . . 33

Steam Heat (SSH_) . . . . . . . . . . . . . . . . . . 33

O/A Pressure Sensor and Tubing

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Modulating Reheat (S_H_) . . . . . . . . . . . . 33

Condensate Drain Connections . . . . . . . . . . . 34

Units with Gas Furnace . . . . . . . . . . . . . . . 34

Removing Supply and Relief/Return Fan

Shipping Channels (motors >5 Hp) . . . . . . . . 34

Spring Isolators. . . . . . . . . . . . . . . . . . . . . . 34

Optional DDP Supply Fan Shipping Channel Removal and Isolator Spring

Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Shipping Tie Down and Isolator

Spring Adjustment . . . . . . . . . . . . . . . . . . . 35

O/A Sensor and Tubing Installation . . . . . . . 39

UUnniittss wwiitthh SSttaattiittrraacc . . . . . . . . . . . . . . . . . 39

Gas Heat Units (SFH_). . . . . . . . . . . . . . . . . . . . 40

Connecting the Gas Supply Line to

the Furnace Gas Train . . . . . . . . . . . . . . . . 41

Flue Assembly Installation . . . . . . . . . . . . 45

General Coil Piping and Connection

Recommendations. . . . . . . . . . . . . . . . . . . . . . . 45

Hot Water Heat Units (SLH_) . . . . . . . . . . 46

Steam Heat Units . . . . . . . . . . . . . . . . . . . . 46

Disconnect Switch with External

Handle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Electric Heat Units (SEH_) . . . . . . . . . . . . . . . . 50

4

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Main Unit Power Wiring. . . . . . . . . . . . . . . . . . 51

Electrical Service Sizing . . . . . . . . . . . . . . . . . . 53

Set 1: Cooling Only Rooftop Units and Cooling with Gas Heat or

Hydronic Heat Rooftop Units . . . . . . . . . 53

Set 2: Rooftop units with Electric

Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Field Installed Control Wiring . . . . . . . . . . . . . 58

Controls using 24 VAC . . . . . . . . . . . . . . . . . . . 59

Transformer for Expansion Module . . . . . . . 59

Controls using DC Analog Input/

Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Variable Air Volume System

Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Discharge Temperature Control

Changeover Contacts. . . . . . . . . . . . . . . . . 60

Remote Zone Sensor

(BAYSENS073*) . . . . . . . . . . . . . . . . . . . . . 60

Remote Zone Sensor

(BAYSENS074*) . . . . . . . . . . . . . . . . . . . . . 60

Equipment Stop . . . . . . . . . . . . . . . . . . . . . 60

Ventilation Override Mode (VOM)

Contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Emergency Stop Switch . . . . . . . . . . . . . . 61

Occupied/Unoccupied Contacts . . . . . . . 61

Wall or Duct Mount Humidity Sensor (BAYSENS036* or

BAYSENS037*) . . . . . . . . . . . . . . . . . . . . . . 61

Unit Replacement . . . . . . . . .. . . . . . . . . . .. . . . . 62

Electrical Connection . . . . . . . . . . . . . . . . . . . . 62

Main Electrical Power . . . . . . . . . . . . . . . . 63

SEHF Units with 200V or 230V

Electric Heat . . . . . . . . . . . . . . . . . . . . . . . . . 63

Field-installed Control Wiring . . . . . . . . . 63

Requirements for Gas Heat . . . . . . . . . . . 63

Requirements for Hot Water Heat

(SLH*) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Requirements for Steam Heat

(SSH*) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Space Pressure Sensor and Tubing

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Condensate Drain Connections. . . . . . . . 64

Supply and Return Duct

Connections . . . . . . . . . . . . . . . . . . . . . . . . . 64

Installation of New Units . . . . . . . . . . . . . . . . . 64

Unit Startup . . . . . . . .. . . . . . . . . .. . . . . . . . . .. . . 68

Sequence of Operation. . . . . . . . . . . . . . . . . . . 68

Stop/Off/Auto. . . . . . . . . . . . . . . . . . . . . . . . 68

Occupancy . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Performance Data . . . . . . . . . . . . . . . . . . . . . . . 69

Supply Fan Performance . . . . . . . . . . . . . 69

Pressure Drop Tables. . . . . . . . . . . . . . . . . 91

Component Static Pressure

Drops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Fan Drive Selections . . . . . . . . . . . . . . . . . 97

Pressure Curves . . . . . . . . . . . . . . . . . . . . 102

Economizer and Relief Air Damper

Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

Exhaust Air Dampers . . . . . . . . . . . . . . . 110

Outside Air and Return Air Damper

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 110

To Adjust the Outside Air Damper

Travel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

Compressor Startup (All Systems) . . . . . . . 113

Refrigerant Charging . . . . . . . . . . . . . . . . 114

Compressor Crankcase

Heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Compressor Operational

Sounds . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Electronic Compressor Protection

Module (CPM) . . . . . . . . . . . . . . . . . . . . . . 115

Electronic Expansion Valves . . . . . . . . . . . . . 118

Measuring Superheat . . . . . . . . . . . . . . . . . . . 119

Charging by Subcooling . . . . . . . . . . . . . . . . 119

Measuring Subcooling . . . . . . . . . . . . . . 119

Low Ambient Options. . . . . . . . . . . . . . . . . . . 119

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Standard Ambient Condenser

Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Low Ambient Condenser Fans . . . . . . . 120

Electric, Steam and Hot Water Start-

Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

(Variable Air Volume Systems) . . . . . . . 120

Electric, Steam and Hot Water Start-

Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

Gas Furnace Startup . . . . . . . . . . . . . . . . . . . . 122

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Staged, Modulating, and Ultra

Modulating . . . . . . . . . . . . . . . . . . . . . . . . . 122

Two Stage Gas Furnace . . . . . . . . . . . . . 122

Ultra Modulating Gas Furnace . . . . . . . 126

Ultra Modulating Burner Setup. . . . . . . 127

Final Unit Checkout . . . . . . . . . . . . . . . . . . . . . 129

Trane Startup Checklist. . . . .. . . . . . . . . . .. . . 130

Critical Control Parameters and Dry Bulb

Changeover Map . . . . . . . . . . . . . . . . . . . . . . . 133

Service and Maintenance. . . .. . . . . . . . . . . . . 135

Fan Belt Adjustment . . . . . . . . . . . . . . . . . . . . 137

Scroll Compressor Replacement . . . . . . . . . 138

Refrigeration System. . . . . . . . . . . . . . . . 139

CSHD and CSHN Compressors . . . . . . . 140

Electrical Phasing . . . . . . . . . . . . . . . . . . . 142

75 Ton eFlex™ Variable Speed

Tandem . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142

Precision Suction Restrictor. . . . . . . . . . 142

VFD Programming Parameters

(Supply/Relief) . . . . . . . . . . . . . . . . . . . . . . 143

eFlex™ Compressor VFD Programming

Parameters . . . . . . . . . . . . . . . . . . . . . . . . . 151

Monthly Maintenance. . . . . . . . . . . . . . . . . . . 152

Filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152

Cooling Season . . . . . . . . . . . . . . . . . . . . . . . . 152

Heating Season . . . . . . . . . . . . . . . . . . . . . . . . 153

Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 154

Refrigerant Coils . . . . . . . . . . . . . . . . . . . . 154

Steam or Hot Water Coils . . . . . . . . . . . . 155

Microchannel Condenser Coil Repair and

Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Fall Restraint . . . . . . . . . . . . . . . . . . . . . . . 155

Final Process . . . . . . . . . . . . . . . . . . . . . . . . . . . 155

Unit Wiring Diagram Numbers . . . . .. . . . . . 158

Warranty and Liability Clause . . . . . . .. . . . . 160

COMMERCIAL EQUIPMENT - 20 TONS AND LARGER AND RELATED

ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . 160

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Model Number Description

20 to 75 Tons, Air Cooled

Digit 1 — Unit Type

S = Self-Contained (Packaged Rooftop)

Digit 2 — Unit Function

A = DX Cooling, No Heat E = DX Cooling, Electric Heat F = DX Cooling, Natural Gas Heat L = DX Cooling, Hot Water Heat S = DX Cooling, Steam Heat X = DX Cooling, No Heat, Extended Casing

Digit 3 — System Type

H = Single Zone

Digit 4 — Development Sequence

M = Sixth

Digit 5, 6, 7 — Nominal Capacity

*20 = 20 Ton Air Cooled *25 = 25 Ton Air Cooled *30 = 30 Ton Air Cooled *40 = 40 Ton Air Cooled *50 = 50 Ton Air Cooled *55 = 55 Ton Air Cooled *60 = 60 Ton Air Cooled *70 = 70 Ton Air Cooled *75 = 75 Ton Air Cooled

Digit 8 — Voltage Selection

4 = 460/60/3 XL 5 = 575/60/3 XL C = 380/50/3 XL D = 415/50/3 XL E = 200/60/3 XL F = 230/60/3 XL

Note: SEH units (units with electric heat)

utilizing 200V or 230V require dual power source.

Digit 9 — Heating Capacity

Note: When the second digit is “F” (Gas

Heat), the following applies: (M and T are available ONLY on 50 ton and above).

H = High Heat — 2-Stage K = Low Heat — Ultra Modulating L = Low Heat — 2-Stage M = Low Heat — Modulating 0 = No Heat P = High Heat — Modulating T = High Heat — Ultra Modulating

Note: When the second digit is “E” (Electric

Heat), the following applies:

D = 30 kW H = 50 kW L = 70 kW N = 90 kW Q = 110 kW R = 130 kW U = 150 kW V = 170 kW W = 190 kW

Note: When the second digit is “L” (Hot

Water) or “S” (Steam) Heat, one of the following valve size values must be in Digit 9:

High Heat Coil

1 = 0.50 inch 2 = 0.75 inch 3 = 1.00 inch 4 = 1.25 inches 5 = 1.50 inches 6 = 2.00 inches

Low Heat Coil

A = 0.50 inch B = 0.75 inch C = 1.00 inch D = 1.25 inches E = 1.50 inches F = 2.00 inches

Digit 10 — Design Sequence

* = Current

Note: Sequence may be any letter A through

Z, or any digit 1 through 9.

Digit 11— Relief/Return Option

0 = None 1 = Barometric 3 = Relief 3 HP with Statitrac 4 = Relief 5 HP with Statitrac 5 = Relief 7.5 HP with Statitrac 6 = Relief 10 HP with Statitrac 7 = Relief 15 HP with Statitrac 8 = Relief 20 HP with Statitrac 9 = Return 3 HP with Statitrac M = Return 5 HP with Statitrac N = Return 7.5 HP with Statitrac P = Return 10 HP with Statitrac R = Return 15 HP with Statitrac T = Return 20 HP with Statitrac

Digit 12— Relief/Return Air Fan Drive

(Relief/Return Fan)

0 = None 4 = 400 RPM 5 = 500 RPM 6 = 600 RPM 7 = 700 RPM 8 = 800 RPM 9 = 900 RPM A = 1000 RPM B = 1100 RPM

(Return Fan Only)

C = 1200 RPM D = 1300 RPM E = 1400 RPM F = 1500 RPM G = 1600 RPM H = 1700 RPM J = 1800 RPM K = 1900 RPM

Digit 13 — Filter (Pre DX/Final)

A = Throwaway B = Cleanable Wire Mesh C = High Efficiency Throwaway D = Bag with Prefilter E = Cartridge with Prefilter F = Throwaway Filter Rack (Filter not

included)

G = Bag Filter Rack (Filter Not Included) H = Standard Throwaway Filter/Cartridge

Final Filters J = High Efficiency Throwaway Filter/ Cartridge Final Filters

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Digit 13 — Filter (Pre DX/Final) (continued)

K = Bag Filters with 2–inch Throwaway

Prefilters/Cartridge Final Filters L = Cartridge Filters with 2–inch Throwaway Prefilters /Cartridge Final Filters M = Standard Throwaway Filter/Cartridge Final Filters with 2"Throwaway Prefilters N = High Efficiency Throwaway Filters/ Cartridge Final Filters with 2"Throwaway Prefilters P = Bag Filters with Prefilters/Cartridge Final Filters with 2–inch Throwaway Prefilters Q = Cartridge Filters with Prefilters/Cartridge Final Filters with 2–inch Throwaway Prefilters R = High Efficiency Throwaway/Final filter rack (no filters) T = 2 inch and 1 inch Vertical Filter Rack (no filters) /Final Filter Rack (no filters)

Digit 14 — Supply Air Fan HP

1 = 3 HP FC 2 = 5 HP FC 3 = 7.5 HP FC 4 = 10 HP FC 5 = 15 HP FC 6 = 20 HP FC 7 = 25 HP FC 8 = 30 HP FC 9 = 40 HP FC A = 50 HP FC B = 3 HP DDP 80W C = 3 HP DDP 120W D = 5 HP DDP 80W E = 5 HP DDP 120W F = 7.5 HP DDP 80W G = 7.5 HP DDP 120W H = 10 HP DDP 80W (60-75T = 2 x 5 HP) J = 10 HP DDP 100 or 120W (60-75T = 2 x 5

HP)

K = 15 HP DDP 80W (60-75T = 2 x 7.5 HP) L = 15 HP DDP 100 or 120W (60-75T = 2 x

7.5 HP)

M = 20 HP DDP 80W (60-75T = 2 x 10 HP) N = 20 HP DDP 100 or 120W (60-75T = 2 x 10

HP)

P = 25 HP DDP 80W R = 25 HP DDP 120W T = 30 HP DDP 80W (60-75T = 2 x 15 HP) U = 30 HP DDP 120W (60-75T = 2 x 15 HP) V = 40 HP DDP 80W(60-75T = 2 x 20 HP) W = 40 HP DDP 100 or 120W (60-75T = 2 x

20 HP)

X = 50 HP DDP 80W (70-75T = 2 x 25 HP) Y = 50 HP DDP 100 or 120W (70–75T = 2 x

25 HP)

Z = 30 HP DDP 100W (60-75T = 2 x 15 HP)

Digit 15 — Supply Air Fan RPM

4 = 400 RPM 5 = 500 RPM 6 = 600 RPM 7 = 700 RPM 8 = 800 RPM 9 = 900 RPM A = 1000 RPM B = 1100 RPM C = 1200 RPM D = 1300 RPM E = 1400 RPM F = 1500 RPM G = 1600 RPM H = 1700 RPM J = 1800 RPM K = 1900 RPM L = 2000 RPM M = 2100 RPM N = 2200 RPM P = 2300 RPM R = 2400 RPM

Digit 16 — Outside Air

A = No Fresh Air B = 0-25% Manual D = 0-100% Economizer E = 0-100% Economizer with Traq/DCV F = 0-100% Economizer with DCV

Note: Must install CO

function properly.

sensor(s) for DCV to

2

Digit 17 — System Control

6 = VAV Discharge Temp Control with VFD

without Bypass 7 = VAV Discharge Temp Control with VFD and Bypass 8 = VAV Discharge Temp Control Supply and Relief/Return Fan with VFD without Bypass 9 = VAV Discharge Temp Control Supply and Relief/Return Fan with VFD and Bypass A = VAV - Single Zone VAV - with VFD without Bypass B = VAV - Single Zone VAV - with VFD and Bypass C = VAV - Single Zone VAV - Supply and Relief/Return Fan with VFD without Bypass D = VAV - Single Zone VAV - Supply and Relief/Return Fan with VFD with Bypass

Digit 18 — Zone Sensor

0 = None A = Dual Setpoint Manual or Auto

Changeover (BAYSENS108*) C = Room Sensor w/ Override/Cancel Buttons (BAYSENS073*) D = Room Sensor w/ Temp Adjustment/ Override/Cancel Buttons (BAYSENS074*) L = Programmable Zone Sensor w/ System Function Modes for SZVAV/VAV (BAYSENS800*)

Note: *Asterisk indicates current model

number digit. These sensors can be ordered to ship with the unit.

Digit 19 — Ambient Control

0 = Standard 1 = 0° Fahrenheit

Digit 20 — Agency Approval

0 = None (cULus Gas Heater, see note) 1 = cULus

Note: Includes cULus classified gas heating

section only when second digit is a “F.”

Digit 21 — Miscellaneous Options

0 = Unit Mounted Terminal Block A = Unit Mounted Disconnect Switch B = Unit Mounted Disconnect Switch with

High Fault SCCR D = Unit Mounted Disconnect Switch with Convenience Outlet E = Unit Mounted Disconnect Switch with High Fault SCCR and Convenience Outlet

Digit 22 — Refrigeration Options

0 = Without Hot Gas Bypass B = Hot Gas Bypass C = Hot Gas Reheat without Hot Gas Bypass D = Hot Gas Reheat and Hot Gas Bypass

8

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Digit 23 — Economizer Control Options

O = Without Economizer C = Economizer Control with Comparative

Enthalpy

D = Economizer with Differential Dry Bulb Z = Economizer Control with Reference

Enthalpy

W = Economizer Control with Dry Bulb

Digit 24 — Damper Options

E = Low Leak Economizer Dampers U = Ultra Low Leak Economizer Dampers and

Ultra Low Leak motorized relief dampers when relief/return option includes motorized dampers

Digit 25 — Power Meter

0 = None P = Power Meter

Digit 26 — Efficiency Options

0 = Standard Efficiency Unit H = High Efficiency Unit V = eFlex™ Variable Speed Compressor

Digit 27 — Condenser Options

0 = Standard Aluminum Condenser Coil J = Corrosion Protected Condenser Coil

Digit 28 — Rapid Restart

0 = Standard Restart R = Rapid Restart

Digit 29 — Miscellaneous Options

0 = Motors without Internal Shaft Grounding A = Motors with Internal Shaft Grounding

Digit 30 — Expansion Module

0 = None E = Expansion Module

Digit 31 — Miscellaneous Options

N = Ventilation Override Module

Digit 32 — Service Options

0 = None R = Extended Grease Lines 3 = Stainless Steel Sloped Drain Pan 4 = Stainless Steel Sloped Drain Pan with

Grease Lines

Digit 33 — Cabinet Options

0 = Standard Panels 1 = Standard Panels with Double Wall T = Hinged Access Doors 2 = Hinged Access Doors with Double Wall U = IRU - with Standard Panels 3 = IRU - with Standard Panels with Double

Wall

W = IRU - with Hinged Access Doors 4 = IRU - with Hinged Access Doors with

Double Wall

Y = IRU with SST - with Standard Panels 5 = IRU with SST - with Standard Panels with

Double Wall

Z = IRU with SST - with Hinged Access Doors 6 = IRU with SST - with Hinged Access Doors

with Double Wall

Digit 34 — Filter Monitor

0 = None 1 = Pre-Evaporator 2 = Pre-Evaporator and Final Filter

Digit 35 — BAS/Communication Options

0 = None 7 = Trane LonTalk Communication Interface

Module

8 = Modbus® M = BACNet® Communications Interface W = Air-Fi® Wireless

Digit 36 — Isolators

8 = Spring Isolators

Digit 37 —Airflow

A = Downflow Supply/Upflow Return B = Horizontal Right Supply/ Horizontal End

Return

C = Horizontal Right Supply/Upflow Return E = Downflow Supply/Horizontal End Return

Digit 38 — Miscellaneous Options

A = Supply Fan Piezometer B = Supply Isolation damper C = Return Isolation damper D = Both Supply and Return Isolation damper E = Piezometer with Supply Isolation damper F = Piezometer with Return Isolation damper G = Piezometer with both Supply and Return

Isolation damper

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MMooddeell NNuummbbeerr DDeessccrriippttiioonn

90 to 130 Tons, Air Cooled

Digit 1 — Unit Type

S = Self-Contained (Packaged Rooftop)

Digit 2 — Unit Function

E = DX Cooling, Electric Heat F = DX Cooling, Natural Gas Heat L = DX Cooling, Hot Water Heat S = DX Cooling, Steam Heat X = DX Cooling, No Heat, Extended Casing

Digit 3 — System Type

H = Single Zone

Digit 4 — Development Sequence

L = R-410A Development Sequence

Digit 5, 6, 7 — Nominal Capacity

*90 = 90 Ton Air Cooled *11 = 105 Ton Air Cooled *12 = 115 Ton Air Cooled *13 = 130 Ton Air Cooled

Digit 8 — Power Supply

4 = 460/60/3 XL 5 = 575/60/3 XL

Digit 9 — Heating Capacity

Note: When Digit 2 is “F” (Gas Heat), the

following values apply in Digit 9:

H = High Heat – 2-stage O = No Heat P = High Heat — Modulation T = High Heat—Ultra Modulation

Note: When the second digit calls for “E”

(electric heat), the following values apply in Digit 9:

W = 190 kW

Note: When the second digit calls for “L” (hot

water) or “S” (steam) heat, one of the following valve size values must be in Digit 9:

High Heat Coil: 3 = 1", 4 = 1.25", 5 = 1.5", 6 = 2", 7 = 2.5”

Low Heat Coil: C = 1", D = 1.25", E = 1.5", F = 2", G = 2.5”

Digit 10 — Design Sequence

Digit 11 — Relief Option

0 = None 7 = 100% Relief 15 HP with Statitrac 8 = 100% Relief 20 HP with Statitrac 9 = 100% Relief 25 HP with Statitrac H = 100% Relief 30 HP with Statitrac J = 100% Relief 40 HP with Statitrac

Digit 12 — Relief Fan

(Relief Fan)

0 = None 5 = 500 RPM 6 = 600 RPM 7 = 700 RPM 8 = 800 RPM

Digit 13 — Filter (Pre DX/Final)

A = Throwaway C = High Efficiency Throwaway D = Bag with Prefilter E = Cartridge with Prefilter F = Throwaway Filter Rack (filter not

included)

G = Bag Filter Rack (Filter Not Included) H = StandardThrowaway Filter/Cartridge

Final Filters J = High Efficiency Throwaway Filter/ Cartridge Final Filters K = Bag Filters with 2"Throwaway Prefilters/ Cartridge Final Filters L = Cartridge Filters with 2"Throwaway Prefilters /Cartridge Final Filters M = StandardThrowaway Filter/Cartridge Final Filters with 2–inch Throwaway Prefilters N = High EfficiencyThrowaway Filters/ Cartridge Final Filters with 2–inch Throwaway Prefilters P = Bag Filters with Prefilters Cartridge Final Filters with 2–inch Throwaway Prefilters Q = Cartridge Filters with Prefilters/Cartridge Final Filters with 2–inch Throwaway Prefilters

Digit 14 — Supply Air Fan HP

C = 30 HP (2x15 HP) D = 40 HP (2x20 HP) E = 50 HP (2x25 HP) F = 60 HP (2x30 HP) G = 80 HP (2x40 HP)

Digit 15 — Supply Air Fan Drive

A = 1000 RPM B = 1100 RPM C = 1200 RPM D = 1300 RPM E = 1400 RPM F = 1500 RPM G = 1600 RPM

Digit 16 — Outside Air

D = 0-100% Economizer (Std.) E = 0-100% Economizer with Traq with DCV F = 0-100% Economizer with DCV

Note: Must install CO

function properly.

sensor(s) for DCV to

2

Digit 17 — System Control

6 = VAV Discharge Temperature Control with

VFD without Bypass 7 = VAV Discharge Temperature Control with VFD and Bypass 8 = VAV Discharge Temperature Control Supply and ReliefFan with VFD without Bypass 9 = VAV Discharge Temperature Control Supply and Relief Fan with VFD and Bypass A = VAV – Single Zone VAV – with VFD without Bypass B = VAV – Single Zone VAV – with VFD with Bypass C = VAV – Single Zone VAV – Supply and Relief/Return Fan with VFD without Bypass D = VAV – Single Zone VAV – Supply and Relief/Return Fan with VFD with Bypass

Digit 18 — Zone Sensor

0 = None A = Dual Setpoint Manual or Auto

Changeover (BAYSENS108*) C = Room Sensor with Override and Cancel Buttons (BAYSENS073*) D = Room Sensor with Temperature Adjustment and Override and Cancel Buttons (BAYSENS074*) L = Programmable Zone Sensor with System Function Modes for VAV (BAYSENS800*)

Note: *Asterisk indicates current model

number digit A, B, C, etc. These sensors can be ordered to ship with the unit.

* = Current

Note: Sequence may be any letter A through

Z, or any digit 1 through 9.

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Digit 19 — Ambient Control

0 = Standard 1 = 0° Fahrenheit

Digit 20 — Agency Approval

0 = None (cULus Gas Heater, see note) 1 = cULus

Note: Includes cULus classified gas heating

section only when second digit of Model No. is a “F.”

Digit 21 — Miscellaneous

0 = Unit Mounted Terminal Block A = Unit Mounted Disconnect Switch B = Unit Mounted Disconnect Switch with

High Fault SCCR D = Unit Mounted Disconnect Switch with Convenience Outlet E = Unit Mounted Disconnect Switch with High Fault SCCR and Convenience Outlet

Digit 22 — Refrigeration Options

0 = Without Hot Gas Bypass B = Hot Gas Bypass

Digit 23 — Economizer Control Options

C = Economizer Control with Comparative

Enthalpy

D = Economizer with Differential Dry Bulb Z = Economizer Control with Reference

Enthalpy

W = Economizer Control with Dry Bulb

Digit 24 — Damper Options

0 = Standard Dampers E = Low Leak Economizer Dampers U = Ultra Low Leak Economizer Dampers and

Ultra Low Leak motorized relief dampers

Digit 25 — Power Meter

0 = None 1 = Power Meter

Digit 26 — Efficiency Options

0 = Standard Efficiency Unit H = High Efficiency Unit

Digit 27 — Condenser Coil Options

0 = Air Cooled Aluminum Condenser Coil J = Corrosion-Protected Condenser Coil

Digit 28 — Rapid Restart

Digit 29 — Miscellaneous

0 = Motors without Internal Shaft Grounding A = Motors with Internal Shaft Grounding

Digit 30 — Expansion Module

0 = None E = Expansion Module

Digit 31 — Miscellaneous

N = Ventilation Override Module

Digit 32 — Service Options

0 = None R = Extended Grease Lines 3 = Stainless Steel Sloped Drain Pan 4 = Stainless Steel Sloped Drain Pan with

Grease Lines

Digit 33 — Cabinet Options

0 = Standard Panels 1 = Standard Panels with Double Wall T = Hinged Access Doors 2 = Hinged Access Doors with Double Wall U = IRU - with Standard Panels 3 = IRU - with Standard Panels with Double

Wall

W = IRU - with Hinged Access Doors 4 = IRU - with Hinged Access Doors with

Double Wall

Y = IRU with SST - with Standard Panels 5 = IRU with SST - with Standard Panels with

Double Wall

Z = IRU with SST - with Hinged Access Doors 6 = IRU with SST - with Hinged Access Doors

with Double Wall

Digit 34 — Filter Monitor

0 = None 1 = Pre-Evaporator 2 = Pre-Evaporator and Final Filter

Digit 35 — BAS/Communication Options

0 = None 7 = Trane LonTalk Communication Interface

Module

8 = ModBus® M = BACnet® Communication Interface (BCI)

Module

W = Air-Fi® Wireless

Digit 36 — Isolators

8 = Spring Isolators

Digit 37 —Airflow

A = Downflow Supply/Upflow Return B = Horizontal Right Supply/ Horizontal End

Return

C = Horizontal Right Supply/Upflow Return E = Downflow Supply/Horizontal End Return

0 = Non-Rapid Restart R = Rapid Restart

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General Information

Unit Nameplate

One Mylar unit nameplate is located on the outside of enclosure. It includes the unit model number, serial number, electrical characteristics, weight, refrigerant charge, unit wiring diagram numbers, as well as other pertinent unit data. A small metal nameplate with the Model Number, Serial Number, and Unit Weight is located just above the Mylar nameplate, and a third nameplate is located on the inside of the control panel door.

Compressor Nameplate

The Nameplate for the Scroll Compressor is located on the compressor lower housing. Max amps is listed on the nameplate and is the absolute highest amp load on the compressor at any operating condition (does not include locked rotor amps or inrush). This value should never be exceeded.

Gas Heat Nameplate

The nameplate for the Gas Heater is located on the inside of the gas heat enclosure. Allowable operating values of Min and Max input rate, manifold pressure, and air rise for the heater is listed on the nameplate.

Unit Description

Each single-zone rooftop air conditioner ships fully assembled and charged with the proper refrigerant

quantity from the factory. An optional roof curb, specifically designed for the S_HL units is available from Trane. The roof curb kit must be field assembled and installed according to the latest edition of the roof curb installation manual.

Trane Commercial Rooftop Units are controlled by a Symbio 800 control system that consists of a network of modules and are referred to as Low Level Intelligent Devices (LLID). The acronym (LLID) is used extensively throughout this document when referring to the control system network. These modules through Proportional/ Integral control algorithms perform specific unit functions which provide the best possible comfort level for the customer.

They are mounted in the control panel and are factory wired to their respective internal components. They receive and interpret information from other unit modules, sensors, remote panels, and customer binary contacts to satisfy the applicable request for economizing, mechanical cooling, heating, and ventilation. Refer to the following discussion for an explanation of each module function.

NNoottee:: The Symbio

taken out unless the Symbio 800 is powered on or the Symbio 800 needs to be powered on shortly after replacing the battery. Failure to do this may shorten the battery life.

™

800 coin cell tray should never be

12

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Pre-Installation

Unit Inspection

To protect against loss due to damage incurred in transit, perform inspection immediately upon receipt of the unit.

Exterior Inspection

If the job site inspection reveals damage or material shortages, file a claim with the carrier immediately. Specify the type and extent of the damage on the bill of lading before signing. Notify the appropriate sales representative.

IImmppoorrttaanntt:: Do not proceed with installation of a

damaged unit without sales representative’s approval.

• Visually inspect the complete exterior for signs of shipping damages to unit or packing material.

• Verify that the nameplate data matches the sales order and bill of lading.

• Verify that the unit is properly equipped and there are no material shortages.

• Verify that the power supply complies with the unit nameplate and electric heater specifications.

Inspection for Concealed Damage

Visually inspect the components for concealed damage as soon as possible after delivery and before it is stored.

Do NOT walk on the sheet metal base pans. Bridging between the unit’s main supports may consist of multiple 2 by 12 boards or sheet metal grating.

WWAARRNNIINNGG

NNoo SStteepp SSuurrffaaccee!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonn bbeellooww ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. DDoo nnoott wwaallkk oonn tthhee sshheeeett mmeettaall ddrraaiinn ppaann.. WWaallkkiinngg oonn tthhee ddrraaiinn ppaann ccoouulldd ccaauussee tthhee ssuuppppoorrttiinngg mmeettaall ttoo ccoollllaappssee aanndd rreessuulltt iinn tthhee ooppeerraattoorr//tteecchhnniicciiaann ffaalllliinngg..

If concealed damage is discovered:

• Notify the carrier’s terminal of the damage immediately by phone and by mail.

• Concealed damage must be reported within 15 days.

• Request an immediate, joint inspection of the damage with the carrier and consignee.

• Stop unpacking the unit.

• Do not remove damaged material from receiving location.

• Take photos of the damage, if possible.

• The owner must provide reasonable evidence that the damage did not occur after delivery.

Repair

Notify the appropriate sales representative before arranging unit installation or repair.

IImmppoorrttaanntt:: Do not repair unit until the damage has

been inspected by the carrier’s representative.

Storage

Store unit in a level and dry location. Use adequate blocking under the base rail. If unit is not level and supported adequately, damage may occur when removing screws and opening doors.

Take precautions to prevent condensate formation inside the unit electrical components and motors when:

• The unit is stored before it is installed; or,

• The unit is set on the roof curb and temporary auxiliary heat is provided in the building.

Isolate all side panel service entrances and base pan openings (e.g., conduit holes, S/A and R/A openings, and flue openings) to minimize ambient air from entering the unit until it is ready for startup.

NNoottee:: Do not use the unit heater as temporary heat

without completing the startup procedures detailed under Startup information.

The manufacturer will not assume responsibility for equipment damage resulting from accumulation of condensate on the unit electrical and/or mechanical components.

Unit Clearances

Minimum Required Clearance (see Dimensional Data chapter) illustrates the minimum operating and service clearances for either a single or multiple unit installation.

These clearances are the minimum distances necessary for adequate service, cataloged unit capacity, and peak operating efficiency. Providing less than the recommended clearances may result in condenser coil starvation, “short-circulating” of relief and economizer airflows, or recirculation of hot condenser air.

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Unit Dimensions and Weight Information

Table 1. Unit dimensions and weight information

Description

Air-Cooled Condenser

Unit dimensions, 20–75 ton (SAH_)

Unit dimensions, 90–130 ton Figure 5, p. 23

Roof curb weights

Center-of-gravity illustration and related dimensional data

Factory Warranty Information

Compliance with the following is required to preserve the factory warranty:

Figure 1, p. 18, Figure 2, p. 19, Figure 3, p. 20, Figure 4, p. 21

Figure 6, p. 24

• Trane, or an agent of Trane specifically authorized

All Unit Installations

Startup MUST be performed by Trane, or an authorized agent of Trane, to VALIDATE this WARRANTY. Contractor must provide a two-week startup notification and true start date to Trane (or an agent of Trane specifically authorized to perform startup).

On all IntelliPak 1 units, a Trane factory startup is an option and provides maximized unit reliability and overall unit performance in addition to preserving the standard factory warranty.

Additional Requirements for Units Requiring Disassembly

When a new fully assembled IntelliPak is shipped and received from our Trane manufacturing location, and, for any reason, it requires disassembly or partial disassembly, which could include but is not limited to the evaporator, condenser, control panel, compressor/ motor, factory mounted starter, or any other components originally attached to the fully assembled unit, compliance with the following is required to preserve the factory warranty:

• The installing contractor must notify Trane, or an

• Start-up must be performed by Trane or an agent of

Trane, or an agent of Trane specifically authorized to perform startup and warranty of Trane® products, will provide qualified personnel and standard hand tools to perform the disassembly work at a location specified by the contractor. The contractor shall provide the rigging equipment, such as chain falls, gantries, cranes, forklifts, etc., necessary for the disassembly and reassembly work and the required qualified personnel to operate the necessary rigging equipment. See

“Warranty and Liability Clause,” p. 160 for additional

details.

Reference

to perform start-up and warranty of Trane® products, will perform or have direct on-site technical supervision of the disassembly and reassembly work.

agent of Trane specifically authorized to perform start-up and warranty of Trane® products, two weeks in advance of the scheduled disassembly work to coordinate the disassembly and reassembly work.

Trane specifically authorized to perform start-up and warranty of Trane® products.

14

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Installation Checklist

General Checklist (Applies to all units)

The checklist listed below is a summary of the steps required to successfully install a Commercial rooftop unit. This checklist is intended to acquaint the installing personnel with what is required in the installation process. It does not replace the detailed instructions called out in the applicable sections of this manual.

IImmppoorrttaanntt:: This checklist does not replace the detailed

instructions called out in the applicable sections of this manual.

☐ Check the unit for shipping damage and material

shortage; file a freight claim and notify Trane office.

☐ Verify that the installation location of the unit will

provide the required clearance for proper operation.

☐ Assemble and install the roof curb per the current

edition of the curb installation guide.

☐ Fabricate and install ductwork; secure ductwork to

curb.

☐ Install pitch pocket for power supply through

building roof. (If applicable)

☐ Rigging the unit.

☐ Set the unit onto the curb; check for levelness.

☐ Ensure unit-to-curb seal is tight and without buckles

or cracks.

☐ Install and connect condensate drain lines to each

evaporator drain connection.

☐ Remove the shipping hold-down bolts and shipping

channels from the supply and relief/return fans ordered with rubber or spring isolators.

☐ Check all optional supply and relief/return fan

spring isolators for proper adjustment.

☐ Verify all discharge line service valves (one per

circuit) are back seated.

Main Electrical Power Requirements

☐ Verify that the power supply to the unit complies

with the unit nameplate specification. Refer to Main Unit Power Wiring in the Installation chapter.

☐ Properly ground the unit.

☐ Inspect all control panel components and tighten

any loose connections.

☐ Connect properly sized and protected power supply

wiring to a field supplied/installed disconnect and the unit (copper wiring only to the unit).

☐ Verify that phasing to the unit is correct (ABC).

☐ Turn the 1S1 fused switch inside the control panel

off to prevent accidental unit operation. (20-75T units only).

☐ Turn the 1S1 and 1S20 fused switches inside the

control panel off to prevent accidental unit operation. (90-130T units only).

☐ Turn on power to the unit.

☐ Press the STOP button on the User Interface (2P1).

☐ Allow compressor crankcase heaters to operate for

8 hours prior to starting the refrigeration system.

IImmppoorrttaanntt:: Note: All field-installed wiring must comply

with NEC and applicable local codes.

Field Installed Control Wiring

☐ Complete the field wiring connections for the

variable air volume controls as applicable. Refer to unit diagrams for guidelines.

IImmppoorrttaanntt:: Note: All field-installed wiring must comply

with NEC and applicable local codes.

Requirements for Electric Heat Units

SSEEHH__ UUnniittss ((446600––557755VV))

☐ Verify that the power supply complies with the

electric heater specifications on the unit and heater nameplate.

☐ Inspect the heater junction box and control panel;

tighten any loose connections.

☐ Check electric heat circuits for continuity.

SSEEHH__ UUnniittss wwiitthh 220000VV oorr 223300VV EElleeccttrriicc HHeeaatt:: ((RReeqquuiirreess SSeeppaarraattee PPoowweerr SSuuppppllyy ttoo HHeeaatteerr))

☐ Connect properly sized and protected power supply

wiring for the electric heat from a dedicated, fieldsupplied/installed disconnect to terminal block 3XD5, or to an optional unit-mounted disconnect switch 3QB4.

Requirements for Gas Heat Units

☐ Gas supply line properly sized and connected to the

unit gas train.

☐ All gas piping joints properly sealed.

☐ Drip leg installed in the gas piping near the unit.

☐ Gas piping leak checked with a soap solution. If

piping connections to the unit are complete, do not pressurize piping in excess of 0.50 psig or 14" W.C. to prevent component failure.

☐ Main supply gas pressure adequate.

☐ Flue Tubes clear of any obstructions.

☐ Factory-supplied flue assembly installed on the

unit.

☐ Connect the 3/4" CPVC furnace drain stub-out to a

proper condensate drain.

Requirements for Hot Water Heat (SLH_)

☐ Route properly sized water piping through the base

of the unit into the heating section.

RT-SVX072A-EN

15

PPrree--IInnssttaallllaattiioonn

☐ Install the factory-supplied, 3-way modulating

valve.

☐ Complete the valve actuator wiring.

Requirements for Steam Heat (SSH_)

☐ Install an automatic air vent at the top of the return

water coil header.

☐ Route properly sized steam piping through the base

of the unit into the heating section.

☐ Install the factory-supplied, 2-way modulating

valve.

☐ Complete the valve actuator wiring.

☐ Install 1/2", 15-degree swing check vacuum breaker

(s) at the top of each coil section. Vent breaker(s) to the atmosphere or merge with return main at discharge side of steam trap.

☐ Position the steam trap discharge at least 12" below

the outlet connection on the coil.

☐ Use float and thermostatic traps in the system, as

required by the application.

O/A Pressure Sensor and Tubing Installation (All units with Statitrac or Return Fans)

☐ O/A pressure sensor mounted to the roof bracket.

☐ Factory supplied pneumatic tubing installed

between the O/A pressure sensor and the connector on the vertical support.

☐ (Units with StatiTrac) Field supplied pneumatic

tubing connected to the proper fitting on the space pressure transducer located in the filter section, and the other end routed to a suitable sensing location within the controlled space.

Requirements for Modulating Reheat

☐ Install space humidity and temperature sensors.

Refer to unit diagrams for guidelines.

16

RT-SVX072A-EN

Dimensional Data

Table 2. Heating/cooling unit dimensions (ft. in.) - air-cooled - SEH_, SFH_, SSH_, SLH_, SXH_

Nom. Tons H L W B C D E F G

20, 25

30 7-3 40 7-3

50, 55

60

70, 75

7-3

7-3 7-3 1/4 32-10 1/2 7-3 1/4 32-10 1/2

Nom. Tons J K M N O P

20, 25

30

40

50, 55

60

70, 75

Nom. Tons

20, 25

30 40

50, 55

60

70, 75

Notes:

1. In columns J and K: top dimension = high gas heat, bottom dimension = low gas heat.

2. Unit drawing is representative only and may not accurately depict all models.

3. Use high gas heat J dimension for all hydronic heat connections.

4. Optional Ultra Low Leak Power Exhaust extends beyond lifting lug and increases overall “Z” dimension by 0.65".

16-9 3/4 16-9 3/4 16-9 3/4 16-9 3/4 20-1 3/4 20-6 3/4 20-1 3/4 20-6 3/4 20-1 3/4 20-6 3/4 20-1 3/4 20-6 3/4

w/Exh Fan w/ Ret Fan w/Exh Fan w/ Ret Fan

6-6 15/16 6-6 15/16

7-8 3/16 7-8 3/16 7-8 3/16 7-8 3/16

24-1 3/8 7-6 1/2

24-1 3/8 7-6 1/2 32-10 1/2 7-6 1/2 32-10 1/2 7-6 1/2

16-6 16-6 16-6 16-6 19-6 20-3 19-6 20-3 19-6 20-3 19-6 20-3

16-3 13/16

19-10 5/16

S

3-0 3-0 3-4 3-4 4-5 4-5

6-9 6-9 6-9

6-9 9-8 6-9 9-8 6-9

16-7 10-7

19-7 12-1

T

3-9 5/16 3-4 3/8 2-9 15/16 4-9 5/16 3-4 3/8 2-9 15/16 5-9 5/16 3-4 3/8

6-9 3/8 3-4 3/8 5-9 5/16 4-5 3/8 5-9 5/16 4-5 3/8

0-9 1/2 1-3 5/8 1-7 9/16 1-3 1/2 2-2 1/2 0-9 1/2 1-3 5/8 1-7 9/16 1-3 1/2 2-2 1/2 0-9 7/8 1-5 7/8 1-10 1/8 0-9 7/8 1-5 7/8 1-10 1/8 0-9 7/8 1-5 7/8 1-10 1/8 0-9 7/8 1-5 7/8 1-10 1/8

U

3-1½ 5-7 3-1½ 5-7 4-2½ 7-8½ 4-2½ 7-8½

Q

15-5 5/16

18-11 11/16 15-4 15/16

15-5 5/16

18-11 11/16 15-4 15/16

13-3 7-0

V X Z

5-7 5-7

0-5 13/16 7-9 1/2 0-5 13/16 7-9 1/2 0-5 13/16 7-9 1/2 0-5 13/16 7-9 1/2 0-5 13/16 0-5 13/16

2-5 2-5 2-5 2-5 2-5 2-5 2-5 2-5

R R2

8-0

9-11 9-11

16-2 5/16

N/A

RT-SVX072A-EN

17

C

B

D

A

J

E

H1

F2*

L

K

F1

H2**

G

M

Note: Ultra Low Leak Power Exhaust Damper extends 0.65" beyond lifting lugs

*Condensate drain at F2 not used on DDP fans. **Lifting lug at H2 not used on 20-36 T units.

100% MODULATNG RELIEF DAMPER

1" NPT CONDENSATE

DRAIN CONNECTION (BOTH SIDES)

FILTER

ACCESS

SUPPLY

FAN

ACCESS

COMPRESSOR ACCESS

FLUE VENT (GAS HEAT ONLY)

HEATER ACESS

1 1/4" NPT GAS PIPE ENTRY WITH GROMMET

DRAIN HOLE

CPVC FURNACE DRAIN

(SEE CPVC DIMENSIONAL TABLE)

CONTROL BOX ACCESS

FRESH AIR INTAKE

(DIMENSION MEASURED FROM BOTTOM OF BASE RAIL TO TOP OF FAN GRILL)

DDiimmeennssiioonnaall DDaattaa

Figure 1. Unit dimensions, SAH_ cooling only units (20 to 75 ton)

NNoottee:: Use the table that follows.

Table 3. Unit dimensions, SAH_ cooling only units (20 to 75 ton)

Nom.

Tons

20, 25

30

40 29'–8" 6'–9"

50, 55

60 29'–8" 6'–9" 9'–8"

70, 75

18

A B C D E F1 F2 G H1 H2 J

21'–9 3/4"

29'–8" 6'–9"

29'–8" 6'–9" 9'–8"

6'–9"

7'–6 1/2" 7'–3 1/4" 3'–9 5/16"

7'–6 1/2" 7'–3 1/4" 4'–9 5/16"

7'–6 1/2" 7'–3 1/4" 5'–9 5/16" 12'–1 1/4" 15'–4 5/16"

7'–6 1/2" 7'–3 1/4" 6'–9 5/16" 12'–1 1/4" 15'–4 5/16"

7'–3 1/4" 5'–9 5/16" 12'–1 1/4" 15'–4 5/16"

10'–7" 12'–6" 1" 7'

1" 8'

N/A 1'–3 1/2"

16'–2 5/16"

2'–5"

RT-SVX072A-EN

Figure 2. Unit base dimensions, SAH_ cooling only units (20 to 75 ton)

B

D

C

Uni t Base

A

E

G

F1

Elect rica l Ent ran ce

F2

NNoottee:: Use table that follows.

Table 4. Unit base dimensions, SAH_ cooling only units (20 to 75 ton)

Nom. Tons A B C D

20–30

40–50

60

70–75

Relief

5 13/16" 8 1/4" 5 13/16" 28 5/8" 6'–6 15/16"

5 13/16" 8 1/4" 5 13/16" 32 15/16" 7'–8 3/16"

5 13/16" 8 1/4" 5 13/16" 26 7/16" 7'–8 3/16"

14'–30 1/4" 2'–32 1/2" 11 3/4"

16'–31 13/16"

2'–5"

2'-5"

11 3/4"

1'–4 9/16" 6'–10 7/8" 4'–5 3/8" 4'–2 1/2"

5'–7"

F1 F2 G

Fan Type

Return

Relief

Return

Relief

DDiimmeennssiioonnaall DDaattaa

E

Fan Type

Relief

3'–4 3/8" 2'–9 15/16"

3'–4 3/8" 3'–1 1/2"

Return

3'

3'–4"

4'–5"

Return

RT-SVX072A-EN

19

C

B

D

A

J

F1

F2*

H2**

G

E

H

Note: Ultra Low Leak Power Exhaust Damper extends 0.65" beyond lifting lugs

*Condensate drain at F2 not used on DDP fans. **Lifting lug at H2 not used on 20-36 T units.

100% MODULATNG RELIEF DAMPER

1" CONDENSATE DRAIN CONNECTION (BOTH SIDES)

FILTER

ACCESS

SUPPLY

FAN

ACCESS

COMPRESSOR ACCESS

FRESH AIR INTAKE

CONTROL BOX ACCESS

(DIMENSION MEASURED FROM BOTTOM OF BASE RAIL TO TOP OF FAN GRILL)

DDiimmeennssiioonnaall DDaattaa

Figure 3. Unit dimensions, SEH_, SFH_, SLH_, SSH_, SXH_ units (20 to 75 ton)

NNoottee:: Use the following two table for dimensions. Use for CPVC furnace drain dimensions.

Table 5. Unit dimensions, SEH_, SFH_, SLH_, SSH_, SXH_ units (20 to 75 ton)—air cooled

Nom.

Tons

20, 25

30

40

50, 55

60

70, 75

20

A B C D E F1 F2 G H1 H2 J K L M N O

24'–1 3/8"

32'–10 1/2"

7'–6 1/2" 7’–3 1/4" 3'–9 5/16"

6’–9"

7'–6 1/2" 7'–3 1/4" 4'–9 5/16"

6'–9"

7'–6 1/2" 7'–3 1/4" 5'–9 5/16" 12'–1 1/8"

6'–9"

7'–6 1/2" 7'–3 1/4" 6'–9 5/16" 12'–1 1/8"

6'–9"

6'–9" 9'–8"

7'–3 1/4" 5'–9 5/16" 12'–1 1/8"

10'–7" 13'–3" 1" 7'

15'–4 5/

16"

1" 8'

N/A

16'–2 5/

16"

16'–2 5/

16"

16'–2 5/

16"

16'–2 5/

16"

1'–3 1/

16'–7" 16'–6"

2"

1'–3 1/

16'–7" 16'–6"

2"

2'–5" 19'–7" See Note

8 1/8" 6 1/4"

RT-SVX072A-EN

9"

Table 6. CVPC furnace drain dimensions

A

B

E

G

F1

J

D

C

Electrical Entrance

H

K

A

B

Holes

L

F2

Unit Base Notes:

1. SEH_ — For 200/230 volt electric heat units, use hole “A” (3⅝" diameter).

2. SFH_ — For gas heat units, use hole “B” (1¼" diameter).

3. SLH_ and SSH_ — For steam or hot water heat units, use holes “A” (3⅝" steam or hot water supply) and “B” (3" steam or hot water return).

4. SXH_ — In extended cabinet cooling only units, the holes are omitted

Nom. Ton

(AC/EC)

20 & 25

30

40

50-75

Note: The length dimension is from the relief end of the unit. The height dimension is

from the bottom of the unit base rail.

Furnace

Size/MBh

Low = 235

High = 500

Low = 350

High = 500

Low = 350

High = 850

Low = 500

High = 850

Dimensions (Note)

Length Height

195-5/32" 9-5/32"

240-1/8" 9-5/32"

231-1/8" 9-5/32"

240-1/8" 9-5/32"

231-1/8" 9-5/32"

Figure 4. Unit base dimensions, SEH_, SFH_, SLH_, SSH_, SXH_ units (20 to 75 ton)

NNoottee:: Use the table that follows.

DDiimmeennssiioonnaall DDaattaa

RT-SVX072A-EN

21

DDiimmeennssiioonnaall DDaattaa

Table 7. Unit base dimensions, SEH_, SFH_, SLH_, SSH_, SXH_ units (20 to 75ton)—air cooled

E F1 G F2

Nom. tons A B C D

20–30

40 & 50

70–75

16'–3 3/16" 2'–2 1/2" 5 13/16"

19'–10 5/

16"

60

19'–10 5/

16"

19'–10 5/

16"

2'–5"

7 1/16"

6 1/16"

5'–7"

Note 1

H J K L

15'–5 5/16"

18'–11 11/

16"

18'–11 11/

16"

18'–11 11/

16"

Notes:

1. 5'–5 15/16" for SEH_ units or 7'–8 1/

2. 20'–1 3/4" for SFH_ “High Heat”

16'–9 3/

Note 2

2" for SFH_, SLH_, SSH_, SXH_ units.

units or 20'–6 3/4" for SFH_ “Low Heat” units. Either is selectable in field for SL and SS Return.

8 13/16" 9 1/16"

4"

8 3/16" 9 1/16"

Relief

3'–4 3/8"

3'–4 3/8" 3'–1 1/2" 5 13/16" 8 1/4" 7'–8 3/16"

4'–5 3/8" 4'–2 1/2" 5 13/16" 8 1/4" 7'–8 3/16"

Return

2'–9 15/

16"

Relief

5 13/16" 8 1/4"

Fan Type

Return

Relief

6'–6 15/

16"

Re-

Relief

turn

5 13/16" 28 5/8"

3'

5 13/16" 32 15/16"

3'–4”

5 13/16" 26 7/16"

4'–5”

5 13/16" 26 7/16"

4'–5”

Return

22

RT-SVX072A-EN

Figure 5. S_H_ cooling and heating units (90-130 ton)

Relief Air

Outdoor Air

11'

8⅜

"

o

v

er panels

o

v

e

r li

f

tin

g lugs

11' 11⅝"

1⅜" Drain Hole (both sides)

6' 9⅜"

1" Condensate Drain (both sides)

CPVC Furnace Drain (See CPVC Dimensional Table)

Lifting Lug (6 points)

1⅜" Drain Hole (both sides)

11' 8

⁄

₁₆

"

14'

¼"

9

'

4⅞"

2

0

'

½"

19

'

⅜"

3' ⅜

"

14' 6¾"

14' 4¾"

14' 0⁹⁄₃%"

14' 2⁹⁄₃%"

13' 4⅛"

12' 11⅛"

35

' 3¾"

7⁹⁄₃%"

8½"

3' 9"

7' 0"

9⁄₃%"

Main Unit Control Box

21*⁵⁄₃%"

2' 4"

Supply Air Opening

Electric or Gas Control Box

10' 0⅝"

11' 10*⁵⁄₃%"

3½" Diameter Hole for Gas Piping

4¹¹⁄₁₆" Diameter Hole for Steam or Hot Water Piping

21' 5⅜"

Return Air Opening

9' 1"

5⅞"

5 ' 4⅜"

11'

2¹⁄₁₆"

Legend

A, B, C, D = 1⅛" diameter hole for field-installed control wiring. E = 3½" diameter hole for for main power wiring.

Note: Ultra Low Leak Pwer Relief Damper extends 0.65" beyaond lifting lugs.

6' 7⅜"

6' 1⅝"

DDiimmeennssiioonnaall DDaattaa

RT-SVX072A-EN

23

Condenser

Section

Top View

A

B

DDiimmeennssiioonnaall DDaattaa

Center of Gravity

Figure 6. Center of gravity dimensional data

Table 8. Center of gravity dimensional data

Units without 100%

Unit Model Unit Size

20 13' 5'' 3' 10'' 12' 9'' 3' 9'' 12' 3'' 3' 10''

25 13' 6'' 3' 10'' 12' 10'' 3' 9'' 12' 3'' 3' 10''

30 12' 10'' 3' 10'' 12' 0'' 3' 9'' 11' 6'' 3' 10''

40 17' 4'' 4' 0'' 16' 2'' 3' 11'' 15' 6'' 3' 11''

SAHL

SEHL, SLHL, SSHL, SXHL

SFHL

SEHK, SLHK,

SSHK, SXHK

SFHK

Note: Dimensions shown for the center-of-gravity are approximate and are based on a unit equipped with:

Standard coils, FC Fans, 100% economizer, throwaway filters, 460 volt XL start, high capacity heat (as applicable).

50 17' 6'' 4' 0'' 16' 4'' 3' 11'' 15' 8'' 3' 11''

55 17' 6'' 4' 0'' 16' 4'' 3' 11'' 15' 9'' 3' 11''

60 16' 11'' 4' 10'' 15' 9'' 4' 8'' 15' 2'' 4' 9''

70 16' 12'' 4' 10'' 15' 9'' 4' 8'' 15' 3'' 4' 9''

75 17' 6'' 4' 10'' 16' 3'' 4' 8'' 15' 8'' 4' 9''

20 14' 7'' 3' 9'' 13' 11'' 3' 8'' 13' 4'' 3' 9''

25 14' 7'' 3' 9'' 13' 11'' 3' 8'' 13' 5'' 3' 9''

30 13' 12'' 3' 9'' 13' 1'' 3' 8'' 12' 7'' 3' 9''

40 18' 9'' 3' 11'' 17' 7'' 3' 10'' 16' 11'' 3' 10''

50 19' 1'' 4' 0'' 17' 10'' 3' 11'' 17' 2'' 3' 11''

55 19' 1'' 4' 0'' 17' 11'' 3' 11'' 17' 3'' 3' 12''

60 18' 5'' 4' 9'' 17' 1'' 4' 7'' 16' 5'' 4' 8''

70 18' 7'' 4' 10'' 17' 3'' 4' 8'' 16' 8'' 4' 9''

75 19' 1'' 4' 10'' 17' 9'' 4' 8'' 17' 2'' 4' 9''

20 14' 8'' 3' 10'' 14' 0'' 3' 9'' 13' 6'' 3' 10''

25 14' 9'' 3' 9'' 14' 1'' 3' 8'' 13' 6'' 3' 9''

30 14' 1'' 3' 9'' 13' 3'' 3' 8'' 12' 9'' 3' 9''

40 18' 11'' 3' 11'' 17' 9'' 3' 10'' 17' 2'' 3' 10''

50 19' 1'' 3' 11'' 17' 11'' 3' 10'' 17' 3'' 3' 11''

55 19' 1'' 3' 11'' 18' 0'' 3' 10'' 17' 4'' 3' 11''

60 18' 6'' 4' 9'' 17' 3'' 4' 7'' 16' 8'' 4' 9''

70 18' 7'' 4' 9'' 17' 4'' 4' 7'' 16' 9'' 4' 8''

75 19' 1'' 4' 9'' 17' 10'' 4' 7'' 17' 3'' 4' 9''

90 19’ 11” 6’ 3” 18’ 5” 5’ 10” 17’ 5” 5’ 10”

105 20’ 4” 6’ 3” 18’ 10” 5’ 11” 17’ 10” 6’ 0”

115 20’ 0” 6’ 3” 18’ 6” 5’ 11” 17’ 7” 6’ 0”

130 19’ 11” 6’ 3” 18’ 6” 5’ 11” 17’ 7” 6’ 0”

90 19’ 11” 6’ 4” 18’ 6” 6’ 0” 17’ 6” 5’ 11”

105 20’ 4” 6’ 4” 18’ 11” 6’ 0” 18’ 0” 6’ 1”

115 20’ 0” 6’ 4” 18’ 7” 6’ 0” 17’ 8” 6’ 1”

130 20’ 0” 6’ 4” 18’ 7” 6’ 0” 17’ 8” 6’ 0”

Relief/Return Fan Dim. A Dim. B Dim. A Dim. B Dim. A Dim. B

Units with Relief/

Return Fan

Units with Supply &

Relief/Return VFD

24

RT-SVX072A-EN

Electrical Entry Details

F

E

DCB

A

Unit Base

Electrical Entrance

Electrical Entrance End View

5⅛"

LG

K

M

J

N

H

Legend

A, B, C, D = 1⅛" diameter hole for field-installed control wiring

E =

4⅛" or 5⅝" diameter hole for main power wiring

(Remove the 4⅛" hole plate when 5⅝" access is required)

Note: 4⅛" diameter hole on 20-55T units only 4⅛" and 5⅝" diameter hole on 60-75T units only

1⅝"

Figure 7. Electrical entrance dimensions, SAH_ cooling only units (20 to 75 ton)

DDiimmeennssiioonnaall DDaattaa

Table 9. Electrical entrance dimensions, SAH_ cooling only units (20 to 75 ton)

Nom. Tons F G H J K L M N

20 - 30

40 - 75

RT-SVX072A-EN

8 7/32" 6 31/32" 15 21/32" 13 21/32" 9 17/32" 8 1/2" 18 1/16" 19 9/16"

8 7/8" 7 7/8" 17 7/8" 15 7/8" 9 29/32" 10 3/16" 20 13/32" 22 5/32"

25

LG

5⅛"

Unit Base

Electrical Entrance

E

D

CB

A

K

M

J

N

H

F

Electrical Entrance End View

Legend

A, B, C, D = 1⅛" diameter hole for field-installed control wiring

E =

4⅛" or 5⅝" diameter hole for main power wiring

(Remove the 4⅛" hole plate when 5⅝" access is required)

Note: 4⅛" diameter hole on 20-55T units only 4⅛" and 5⅝" diameter hole on 60-75T units only

1⅝"

DDiimmeennssiioonnaall DDaattaa

Figure 8. Electrical entrance dimensions, SEH_, SFH_, SLH_, SXH_ units (20 to 75 tons)

Table 10. Electrical entrance dimensions, SEH_, SFH_, SLH_, SSH_, SXH_ units (20 to 75 ton)

Nom. Tons F G H J K L M N

20 - 30

40 - 75

26

8 7/32" 6 31/32" 15 21/32" 13 21/32" 9 17/32" 8 1/2" 18 1/16" 19 9/16"

8 7/8" 7 7/8" 17 7/8" 15 7/8" 9 29/32" 10 3/16" 20 13/32" 22 5/32"

RT-SVX072A-EN

Minimum Required Clearance

8'0"MINIMUM

SERVICE/ AIRFLOW

CLEARANCE

8'0"MINIMUM

SERVICE/ AIRFLOW

CLEARANCE

8'0"MINIMUM

SERVICE/ AIRFLOW

CLEARANCE

6'0"MINIMUM

SERVICE/ AIRFLOW

CLEARANCE

(SEENOTE 4)

C

D

(NOTE 1)

NOT TO SCALE

A

B

E

K

F

H

G

L

F H

G / J

J

L

M

N

P

MULTIPLE UNIT INSTALLATION

12'0" MINIMUM

SERVICE/ AIRFLOW

CLEARANCE

(NOTE3)

16'0" MINIMUM

SERVICE/ AIRFLOW

CLEARANCE

(NOTE3)

CONDENSER

SECTION (NOTE1)

FRESHAIR

INTAKE

EXHAUSTAIR

CONDENSER

SECTION (NOTE1)

FRESHAIR

INTAKE

EXHAUSTAIR

CONDENSER

SECTION (NOTE1)

FRESHAIR

INTAKE

EXHAUSTAIR

Return Air Opening

Outside Air Intake

Supply Air Opening

Condenser Section

Optional 2’10-3/4” Exhaust/Return Access Door (180° swing)

Hinged 2’10-3/4” Filter Access Door (180° swing)

Hinged 2’10-3/4” optional Heater or Final Filter Access Door (180° swing)

Hinged 2’10-3/4” Supply Fan Access Door (180° swing) (90-130 ton)

Hinged 2’4-1/2” Control Panel Door (180° swing) (90-130 ton)

Hinged 2’10-3/4” VFD Access Door (180° swing)

Hinged 2’10-3/4” Evap Condenser Access Door (180° swing)

Hinged 2’8” Control Panel Door (180° swing) (20-36 ton)

Hinged 3’6” Control Panel Door (180° swing) (40-75 ton)

A

B

C

D

E

F

G

H

J

K

L

M

=

Single Unit Installation

Legend

Figure 9. Minimum operation and service clearances for single and multiple unit installation

DDiimmeennssiioonnaall DDaattaa

RT-SVX072A-EN

27

Weights

Table 11. Air-cooled condenser - approximate operating weights (lbs.)

Unit

20 4599 4919 5184 5439 5309 5473 4897 5217 5482 5737 5607 5771

25 4602 4922 5187 5442 5312 5576 4906 5226 5491 5746 5616 5880

30 5035 5381 5646 5901 5771 5933 5492 5838 6103 6358 6228 6390

40 7130 7485 7810 8200 8020 7700 7800 8155 8480 8870 8690 8370

50 7554 8004 8329 8719 8539 8270 8273 8723 9048 9438 9258 8989

55 7560 8004 8329 8719 8539 8270 8279 8723 9048 9438 9258 8989

60 8835 9481 9806 10296 10291 10464 9778 10424 10749 11239 11234 11407

70 9018 9663 9988 10478 10473 10646 9961 10606 10931 11421 11416 11589

75 9350 9999 10324 10814 10809 10982 10293 10942 11267 11757 11752 11925

90 X 13167 13322 13967 14042 14017 X 14505 14660 15305 15380 15355

105 X 13800 13955 14600 14675 14650 X 15138 15293 15938 16013 15988

115 X 14004 14159 14804 14879 14854 X 15342 15497 16142 16217 16192

130 X 14942 14445 15090 15165 15140 X 16280 15783 16428 16503 16478

Notes:

1. Weights shown are for air-cooled units with standard efficiency and include the following features: FC fans, Supply Fan VFD, standard

2. Weights shown represent approximate operating weights and have a ±10% accuracy. To calculate weight for a specific unit

SA SX SE SF SL SS SA SX SE SF SL SS

scroll compressors, 100% economizer, throwaway filters, maximum motor sizes, 460V XL start, high capacity heat, and access doors.

configuration, utilize TOPSS™ or contact the local Trane® sales representative. ACTUAL WEIGHTS ARE STAMPED ON THE UNIT NAMEPLATE.

Without Exhaust Fan With Exhaust Fan

28

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Table 12. Roof curb max weight (lbs./kg.)

Unit

20, 25, 30

40, 50, 55

60, 70, 75

90-130

Note: Roof curb weights include the curb and pedestal.

SAH_ SEH_, SFH_, SLH_, SSH, SXH_

Roof Curb Max. Weight

490 510

515 550

610 640

N/A

WWeeiigghhttss

770

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29

Installation

S

u

ppl

y

Air O

pe

ning

Pedestal

Conduit Diameter

Roof Curb Cut-a-Way

4-13/16”

1/2” Clearance

Pitch Pocket 16” x 8”

*Control Wire Conduit Access Area (Illustration Only)

C

L

C

B

A

L

Roof Curb and Ductwork

The roof curbs consist of two main components: a pedestal to support the unit condenser section and a “full perimeter” enclosure to support the unit’s air handler section.

Before installing any roof curb, verify the following:

• It is the correct curb for the unit.

• It includes the necessary gaskets and hardware.

• The purposed installation location provides the required clearance for proper operation.

• The curb is level and square — the top surface of the curb must be true to assure an adequate curbto-unit seal.

Step-by-step curb assembly and installation instructions ship with each Trane accessory roof curb kit. Follow the instructions carefully to assure proper fit-up when the unit is set into place.

NNoottee:: To assure proper condensate flow during

operation, the unit (and curb) must be as level as possible. The maximum slope allowable for rooftop unit applicationsexcluding SSH_s, is 4" end-to-end and 2" side-to-side. Units with steam coils (SSH_s) must be set level!

If the unit is elevated, a field constructed catwalk around the unit is strongly recommended to provide easy access for unit maintenance and service. Recommendations for installing the Supply Air and Return Air ductwork joining the roof curb are included in the curb instruction booklet. Curb ductwork must be fabricated and installed by the installing contractor before the unit is set into place.

NNoottee:: For sound consideration, cut only the holes in the

roof deck for the ductwork penetrations. Do not cut out the entire roof deck within the curb perimeter.

Pitch Pocket Location

The location of the main supply power entry is located at the bottom right-hand corner of the control panel. illustrates the location for the electrical entrance through the base in order to enter the control panel. If the power supply conduit penetrates the building roof beneath this opening, it is recommended that a pitch pocket be installed before the unit is placed onto the roof curb.

The center line dimensions shown in the illustration below indicates the center line of the electrical access hole in the unit base when it is positioned on the curb, ±3/8 inch. The actual diameter of the hole in the roof should be at least 1/2 inch larger than the diameter of the conduit penetrating the roof. This will allow for the

30

clearance variable between the roof curb rail and the unit base rail illustrated in

Figure 10, p. 30.

The pitch pocket dimensions listed are recommended to enhance the application of roofing pitch after the unit is set into place. The pitch pocket may need to be shifted as illustrated to prevent interference with the curb pedestal.

If a Trane Curb Accessory Kit is not used:

• The ductwork can be attached directly to the factory-provided flanges around the unit supply and return air openings. Be sure to use flexible duct connections at the unit.

• For “built-up” curbs supplied by others, gaskets must be installed around the curb perimeter flange and the supply and return air opening flanges.

• If a “built-up” curb is provided by others, it should NOT be made of wood.

• If a “built-up” curb is provided by others, keep in mind that these commercial rooftop units do not have base pans in the condenser section.

• If this is a REPLACEMENT UNIT without the IRU option, keep in mind that the CURRENT DESIGN commercial rooftop units do not have base pans in the condenser section.

• Trane roof curbs are recommended. If using a nonTrane roof curb with right-angle return airflow approaches to a return fan inlet, a rigid, solid flow baffle wall should be installed across the full width of the roof curb return airflow path in the position shown in

Figure 16, p. 37 to reduce potential

airflow disturbances at the return fan inlet that could contribute to unusual return fan noise.

• If a full perimeter curb is used, make sure the IRU option was added to the unit to ensure stability in the condenser section

Figure 10. Pitch pocket location

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Table 13. Pitch pocket dimensions — S*HL

IInnssttaallllaattiioonn

Tonnage

20, 25 & 30

24, 29, & 36

40–75

Note: For all unit functions (SAH_, SEH_, SFH_, SLH_, SSH_, and SXH_).

Unit Rigging and Placement

WWAARRNNIINNGG

HHeeaavvyy OObbjjeecctt!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinn uunniitt ddrrooppppiinngg wwhhiicchh ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy,, aanndd eeqquuiippmmeenntt oorr pprrooppeerrttyy--oonnllyy ddaammaaggee.. EEnnssuurree tthhaatt aallll tthhee lliiffttiinngg eeqquuiippmmeenntt uusseedd iiss pprrooppeerrllyy rraatteedd ffoorr tthhee wweeiigghhtt ooff tthhee uunniitt bbeeiinngg lliifftteedd.. EEaacchh ooff tthhee ccaabblleess ((cchhaaiinnss oorr sslliinnggss)),, hhooookkss,, aanndd sshhaacckklleess uusseedd ttoo lliifftt tthhee uunniitt mmuusstt bbee ccaappaabbllee ooff ssuuppppoorrttiinngg tthhee eennttiirree wweeiigghhtt ooff tthhee uunniitt.. LLiiffttiinngg ccaabblleess ((cchhaaiinnss oorr sslliinnggss)) mmaayy nnoott bbee ooff tthhee ssaammee lleennggtthh.. AAddjjuusstt aass nneecceessssaarryy ffoorr eevveenn uunniitt lliifftt..

NNoottee:: Use spreader bars as shown in the diagram.

Refer to for the unit weight. Refer to the Installation Instructions located inside the side control panel for further rigging information.

1. To configure the unit Center-of-Gravity, utilize TOPSS or contact the local Trane sales office.

2. Attach adequate strength lifting slings to all four lifting lugs on 20-36 ton units and all six lifting lugs on the 40-130 ton units. The minimum distance between the lifting hook and the top of the unit should be 7 feet for 20-36 ton units and 12 feet for 40-130 ton units.

“Weights,” p. 28 or the unit nameplate

Figure 11, p. 32 illustrates the

“A” Dimension "B" Dimension

4' 5–9/16" 5–9/16"

6' 9–11/16” 5–1/2”

9' 5–11/16" 5–1/2"

installation of spreader bars to protect the unit and to facilitate a uniform lift. lists the typical unit operating weights.

3. Test lift the unit to ensure it is properly rigged and balanced, make any necessary rigging adjustments. Slightly pitch the unit (no more than 1 ft) so the condenser end is above the return end of the unit. This will aid in aligning the unit with the roof curb described in Step 5Installation_Unit Rigging and

Placement

.

4. Lift the unit and position it over the curb and pedestal. These units have a continuous base rail around the air handler section which matches the curb.

IImmppoorrttaanntt:: For replacements, remove old gasket

from the roof curb and place new gasket material on curb. See

“Installation of New Units,” p. 64 to

determine gasket material length using roof curb dimensions.

5. Align the base rail of the unit air handler section with the curb rail while lowering the unit onto the curb. Make sure that the gasket on the curb is not damaged while positioning the unit. (The pedestal simply supports the unit condenser section)

A cross section of the juncture between the unit and the roof curb is shown below.

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31

Spreader Bars

12' 0"

Minimum

Roof Curb

Clevis or Chain

Lifting Lug (typical)

Spreader

Bar

Typical 40 to 130 Ton Unit

Pedestal End

Lifting Cable

7' Minimum

Typical 20 to 36 Ton Unit

Spreader Bar Lengths: – 8' for 20 to 59 ton unit – 10' for 60 to 75 ton unit – 12' for 90 to 130 ton unit

Lifting Lug

Web Sling Shackle

Shackle working load limit to be sized to meet total lifting weight requirements.

5.0 MIN

Unit Base

Lifting Lug

3”

2-1/2”

1-7/16”

2-13/16”

19/32”

3/8”

1-19/32”

2” x 4” Nailer (Furnished with Kit)

Ships with Curb, Field Installed Gasket

IInnssttaallllaattiioonn

Figure 11. Unit rigging

Figure 12. Typical unit base and roof curb cross section

General Installation Requirements

The checklist below is a summary of the steps required to successfully install a Commercial rooftop unit. This checklist is intended to acquaint the installing personnel with what is required in the installation process. It does not replace the detailed instructions called out in the applicable sections of this manual.

☐ Complete

☐ Verify that the installation location of the unit will

☐ Assemble and install the roof curb. Refer to the

☐ Fabricate and install ductwork; secure ductwork to

☐ Install pitch pocket for power supply through

Rigging the Unit

☐ Set the unit onto the curb; check for levelness.

☐ Ensure unit-to-curb seal is tight and without buckles

☐ Install and connect condensate drain lines to each

“Unit Inspection,” p. 13 checklist.

provide the required clearance for proper operation.

current edition of the roof curb installer’s guide.

curb. Do not use the unit to support the weight of the ducting.

building roof. (If applicable).

or cracks.

evaporator drain connection.

32

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IInnssttaallllaattiioonn

☐ Remove the shipping hardware from each

compressor assembly.

☐ Remove the shipping hold-down bolts and shipping

channels from the supply and relief /return fans with rubber or spring isolators.

☐ Check all supply and relief/return fan spring

isolators for proper adjustment.

☐ Verify that all plastic coverings are removed from

the compressors.

☐ Verify all discharge line service valves (one per

circuit) are back seated.

Main Electrical Power

☐ Verify that the power supply complies with the unit

nameplate specifications. Refer to Main Unit Power Wiring in the Installation chapter.

☐ Inspect all control panel components; tighten any

loose connections.

☐ Connect properly sized and protected power supply

wiring to a field-supplied/installed disconnect and unit

☐ Properly ground the unit.

☐ All field-installed wiring must comply with NEC and

applicable local codes.

Field Installed Control Wiring

☐ Complete the field wiring connections for the

variable air volume controls as applicable.

NNoottee:: All field-installed wiring must comply with NEC

and applicable local codes.

Electric Heat Units

☐ Verify that the power supply complies with the

electric heater specifications on the unit and heater nameplate.

☐ Inspect the heater junction box and control panel;

tighten any loose connections.

☐ Check electric heat circuits for continuity.

☐ On SEH_L units with 200V or 230V electric heat

(requires separate power supply to heater) — Connect properly sized and protected power supply wiring for the electric heat from a dedicated, fieldsupplied/installed disconnect to terminal block 3XD5, or to an optional unit-mounted disconnect switch 3QB4.

Gas Heat (SFH_)

☐ Gas supply line properly sized and connected to the

unit gas train.

☐ All gas piping joints properly sealed.

☐ Drip leg installed in the gas piping near the unit.

☐ Gas piping leak checked with a soap solution. If

piping connections to the unit are complete, do not

pressurize piping in excess of 0.50 psig or 14 inches w.c. to prevent component failure.

☐ Main supply gas pressure adequate.

☐ Flue Tubes clear of any obstructions.

☐ Factory-supplied flue assembly installed on the

unit.

☐ LP (Propane) kit parts installed (if required).

☐ Connect the 3/4" CPVC furnace drain stubout to a

proper condensate drain. Provide heat tape or insulation for condensate drain as needed.

Hot Water Heat (SLH_)

☐ Route properly sized water piping through the base

of the unit into the heating section.

☐ Install the factory-supplied, 3-way modulating

valve.

☐ Complete the valve actuator wiring.

Steam Heat (SSH_)

☐ Install an automatic air vent at the top of the return

water coil header.

☐ Route properly sized steam piping through the base

of the unit into the heating section.

☐ Install the factory-supplied, 2-way modulating valve

☐ Complete the valve actuator wiring.

☐ Install 1/2", 15-degree swing-check vacuum breaker

(s) at the top of each coil section. Vent breaker(s) to the atmosphere or merge with return main at discharge side of steam trap.

☐ Position the steam trap discharge at least 12" below

the outlet connection on the coil.

☐ Use float and thermostatic traps in the system, as

required by the application.

O/A Pressure Sensor and Tubing Installation

(All units with Statitrac or return fans)

☐ O/A pressure sensor mounted to the roof bracket.

☐ Factory supplied pneumatic tubing installed

between the O/A pressure sensor and the connector on the vertical support.

☐ Field supplied pneumatic tubing connected to the

proper fitting on the space pressure transducer located in the filter section, and the other end routed to a suitable sensing location within the controlled space (Statitrac only).

Modulating Reheat (S_H_)

☐ Install space humidity and temperature sensors.

Refer to unit diagrams for guidelines.

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33

Condensate Channel (Evaporator Section)

Base Rail

4.5”

2.25” Cleanout

Plug

Field Supplied Condensate Piping

1” NPT (S_HL and S_HG units) Female Connection

Cond ensat e dr ain ope ning s bot h si des

Not e: Each drain pan conn ecti on m ust be t rap ped. The drai ns m ay b e t rappe d in divid uall y or con nect ed an d t hen t rap ped.

IInnssttaallllaattiioonn

Condensate Drain Connections

Each unit is provided with 1" evaporator condensate drain connections (two on each side of the unit for FC supply fans and one on each side of the unit for DDP supply fans).

Due to the size of these units, all condensate drain connections must be connected to the evaporator drain connections.

Refer to the appropriate illustration in for the location of these drain connections.

A condensate trap must be installed due to the drain connection being on the “negative pressure” side of the fan. Install the P-Traps at the unit using the guidelines in

Figure 13. Condensate trap installation

Pitch the drain lines at least 1/2 inch for every 10 feet of horizontal run to assure proper condensate flow. Do not allow the horizontal run to sag causing a possible double-trap condition which could result in condensate backup due to “air lock”.

Figure 14. Condensate drain locations

Figure 13, p. 34.

Units with Gas Furnace

Units equipped with a gas furnace have a 3/4" CPVC drain connection stubbed out through the vertical support in the gas heat section. It is extremely important that the condensate be piped to a proper drain. Refer to the appropriate illustration in for the location of the drain connection.

NNoottee:: Units equipped with an optional modulating gas

furnace will likely operate in a condensing mode part of the time.

An additional 1–1/4" non-connectable water drain is located in the base rail within the heating section. Ensure that all condensate drain line installations comply with applicable building and waste disposal codes.

NNoottee:: Installation on gas heat units will require

addition of heat tape to the condensate drain.

Removing Supply and Relief/ Return Fan Shipping Channels (motors >5 Hp)

Each FC supply fan assembly and relief fan assembly for S_H_ units shipped with a motor larger than 5 HP is equipped with rubber isolators (as standard) or optional spring isolators. Each DDP supply fan assembly for SAH_ and SXH_ units is equipped with spring isolators. Each return fan assembly for units shipped with a motor larger than 5 HP is equipped with spring isolators. Shipping channels are installed beneath each fan assembly and must be removed. To locate and remove these channels, refer to

p. 37

and Figure 18, p. 39, and use the following

procedures:

Spring Isolators

See

Figure 16, p. 37 through Figure 18, p. 39 for spring

isolator locations.

1. Remove and discard the shipping tie down bolts.

2. Remove the shipping channels and discard.

Figure 16,

34

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IInnssttaallllaattiioonn

NNootteess::

• Fan assemblies not equipped with rubber or spring isolators have mounting bolts at the same locations and must not be removed .

• If return fan backside spring isolator repair/replacement is required, access the backside of the return fan by entering the unit filter section. Remove the top pivot bearings from the three fixed- position return damper blades (bolted together as a single section with an angle brace). Lift the three-blade section as a single unit from the return damper assembly and set aside or lean in against the return fan frame. Then enter the return fan compartment from the filter section to perform service work on the rear isolators.

Optional DDP Supply Fan Shipping Channel Removal and Isolator Spring Adjustment

Shipping Tie Down and Isolator Spring Adjustment

Remove shipping tie down bolt and washer (4—20 to 30 ton, 6—40 to 55 ton, 8—60 to 75 ton). LLeeaavvee sshhiippppiinngg cchhaannnneellss iinn ppllaaccee.. Verify spring height is

0.1" to 0.2" above shipping channel. Spring height is factory set but verify and adjust as needed as follows:

1. Back off ALL spring isolator jam nuts (4) at top of assembly (adjusting one spring effects all others)

2. Turn adjustment bolt (make small adjustments; again each change effects all other springs. Clockwise raises; counter clockwise lowers).

3. When correctly adjusted re-tighten jam nuts and rreemmoovvee sshhiippppiinngg cchhaannnneellss.. DDoo NNOOTT rreemmoovvee eelleeccttrriiccaall ggrroouunndd wwiirree ssttrraapp bbeettwweeeenn iissoollaattiioonn bbaassee aanndd uunniitt bbaassee..

RT-SVX072A-EN

35

SPRING ISOLATORS (2 EACH SIDE)

SHIPPING TIE DOWN (2 - 4 EA CH SIDE)

ISOLATION BASE

ISOLATOR SPRING ADJUST B OLT

ISOLATOR SPRING JAM NUT

SPRING ISOLATOR ASSEMBLY

UNIT BASE

SEISMIC ANCHOR

(DO NOT REMOVE)

TIE DOWN BOLT

SHIPPING CHANNELS

IInnssttaallllaattiioonn

Figure 15. DDP shipping channel removal, isolator spring adjustment

36

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Figure 16. Removing supply and relief fan assembly shipping hardware (20 to 75 ton)

Rubber Isolator Locations

ISO-2

ISO-5

ISO-4

ISO-3

ISO-1

Spring Isolator Locations

Fan Assembly Rail

Unit Base Rail

Ground Strap (Do Not Remove)

Shipping Channel

1/2” - Tie Down Bolt 1/2” - Flat Washer

TOP VIEW

DETAIL “A”

4 Locations

Right End View

IInnssttaallllaattiioonn

RT-SVX072A-EN

37

Supply Fan Assem bly

TOP

VI EW

Tie Do wn Bolt

Shipp ing Chan nel

Tie Do wn Bolt

Shipp ing Chan nel

Right End View

Groun d St rap

( Do Not Remove)

Fan Assem bly Rail

Unit Base Rai l

Tie Do wn Bolt

Shipp ing Chan nel

Option al Relief Fan Assembly

TOP VI EW

I SO- 4

I SO- 2

I SO- 3

I SO- 1

IInnssttaallllaattiioonn

Figure 17. Removing supply and relief fan assembly shipping hardware (90 to130 ton)

38

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Figure 18. Removing return fan assembly shipping hardware (20 to 75 ton)

RETURN FAN (20 to 75 Ton)

TOP VIEW

SEE DETAIL A

DETAIL A

Shipping Tie Down (3) 25-30 Ton

ISO-1

ISO-3ISO-4

ISO-2

Ground Strap (Do Not Remove)

Shipping Tie Down (4) 40-75 Ton

Access Door

Motor

Shipping Tag Remove & Discard

Shipping Channel Remove & Discard

1/2” Tie Down Bolt Remove & Discard

1/2” Lock Washer Remove & Discard

1/2” Flat Washer Remove & Discard

IInnssttaallllaattiioonn

Wireless Communication Interface (WCI)

The wireless communication interface is located in the return section of the unit when a return fan is not installed. This provides wireless access to the building through the return duct work.

O/A Sensor and Tubing Installation

An Outside Air Pressure Sensor is shipped with all units designed to operate on variable air volume applications, units equipped with a return fan, or units with 100% modulating relief with Statitrac.

On VAV systems, a duct pressure transducer and the outside air sensor is used to control the discharge duct static pressure to within a customer-specified parameter. On VAV units equipped with 100% modulating relief with Statitrac, a space pressure transducer (3U62) and the outside air sensor is used to control the relief fan and dampers to relieve static pressure to within a customer-specified parameter, within the controlled space.

On units equipped with a return fan, a return pressure transducer (3U106) is connected to the O/A sensor for comparison with return plenum pressure.

Use the following steps and images to install the sensor and the pneumatic tubing.

1. Remove the O/A pressure sensor kit located inside the filter section. The kit contains the following items:

a. O/A static pressure sensor with slotted

RT-SVX072A-EN

mounting bracket

b. 50 ft. 3/16" O.D. pneumatic tubing

c. Mounting hardware

2. Using two #10-32 x 1¾" screws provided, install the sensor’s mounting bracket to the factory-installed bracket (near the filter section).

3. Using the #10-32 x ½" screws provided, install the O/A static pressure sensor vertically to the sensor bracket.

4. Remove the dust cap from the tubing connector located below the sensor in the vertical support.

5. Attach one end of the 3/16" O.D. factory-provided pneumatic tubing to the sensor’s top port, and the other end of the tubing to the connector in the vertical support. Note that most of the tubing is not needed.

NNoottee:: Use only what is required and discard excess

Units with Statitrac

1. Open the filter access door and locate the Space Pressure and Duct Supply Pressure control devices, see the following image for specific location. There are three tube connectors mounted on the left of the solenoid and transducers.

2. Connect one end of the field provided 3/16” O.D. pneumatic tubing for the space pressurization control to the bottom fitting.

3. Route the opposite end of the tubing to a suitable location inside the building. This location should be

tubing.

39

Outside Air Sensing Kit

Top Port Connection

Outside Air Pressure Sensor

Factory Installed Bracket

To Calibration Solenoid

Return Plenum

Transducer

Space Static

Transducer

Duct Static Transducer

Sensing Tube to Discharge Static Pressure Sensing Location

Sensing Tube to Space Sensing Location

Calibration Solenoid

Sensing Tube to Outside Air Reference

Sensor Mounting Bracket

Tubing Connector (in vertical support)

2’ x 3/16” OD Tubing Factory Provided Pneumatic Tubing (Field Installed)

Duct, Space and Return Plenum Pressure Transducer Tubing Schematic

Sensing Tube to Return Plenum

LO HILO HI

LO HI

C

NO

NC

C

NO

NC

SPACE PRESSURE TRANSDUCER

& SOLENOID ASSEMBLY

DUCT STATIC

TRANSDUCER ASSEMBLY

OUTSIDE AIR REFERENCE

TUBE CONNECTS HERE

RETURN AIR TRANSDUCER & SOLENOID ASSEMBLY

TRAQ TRANSDUCER

& SOLENOID ASSEMBLY

Duct Staic Pressure Control

IInnssttaallllaattiioonn

the largest open area that will not be affected by sudden static pressure changes.

Figure 19. Pressure sensing

Gas Heat Units (SFH_)

All internal gas piping is factory-installed and pressure leak-tested before shipment. Once the unit is set into place, the gas supply line must be field-connected to

40

the elbow located inside the gas heat control compartments.

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IInnssttaallllaattiioonn

WWAARRNNIINNGG

HHaazzaarrddoouuss GGaasseess aanndd FFllaammmmaabbllee VVaappoorrss!!

FFaaiilluurree ttoo oobbsseerrvvee tthhee ffoolllloowwiinngg iinnssttrruuccttiioonnss ccoouulldd rreessuulltt iinn eexxppoossuurree ttoo hhaazzaarrddoouuss ggaasseess,, ffuueell ssuubbssttaanncceess,, oorr ssuubbssttaanncceess ffrroomm iinnccoommpplleettee ccoommbbuussttiioonn,, wwhhiicchh ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. TThhee ssttaattee ooff CCaalliiffoorrnniiaa hhaass ddeetteerrmmiinneedd tthhaatt tthheessee ssuubbssttaanncceess mmaayy ccaauussee ccaanncceerr,, bbiirrtthh ddeeffeeccttss,, oorr ootthheerr rreepprroodduuccttiivvee hhaarrmm.. IImmpprrooppeerr iinnssttaallllaattiioonn,, aaddjjuussttmmeenntt,, aalltteerraattiioonn,, sseerrvviiccee oorr uussee ooff tthhiiss pprroodduucctt ccoouulldd ccaauussee ffllaammmmaabbllee mmiixxttuurreess oorr lleeaadd ttoo eexxcceessssiivvee ccaarrbboonn mmoonnooxxiiddee.. TToo aavvooiidd hhaazzaarrddoouuss ggaasseess aanndd ffllaammmmaabbllee vvaappoorrss ffoollllooww pprrooppeerr iinnssttaallllaattiioonn aanndd sseettuupp ooff tthhiiss pprroodduucctt aanndd aallll wwaarrnniinnggss aass pprroovviiddeedd iinn tthhiiss mmaannuuaall..

WWAARRNNIINNGG

EExxpplloossiioonn HHaazzaarrdd!!

FFaaiilluurree ttoo pprrooppeerrllyy rreegguullaattee pprreessssuurree ccoouulldd rreessuulltt iinn aa vviioolleenntt eexxpplloossiioonn,, wwhhiicchh ccoouulldd rreessuulltt iinn ddeeaatthh,, sseerriioouuss iinnjjuurryy,, oorr eeqquuiippmmeenntt oorr pprrooppeerrttyy--oonnllyy-ddaammaaggee.. WWhheenn uussiinngg ddrryy nniittrrooggeenn ccyylliinnddeerrss ffoorr pprreessssuurriizziinngg uunniittss ffoorr lleeaakk tteessttiinngg,, aallwwaayyss pprroovviiddee aa pprreessssuurree rreegguullaattoorr oonn tthhee ccyylliinnddeerr ttoo pprreevveenntt eexxcceessssiivveellyy hhiigghh uunniitt pprreessssuurreess.. NNeevveerr pprreessssuurriizzee uunniitt aabboovvee tthhee mmaaxxiimmuumm rreeccoommmmeennddeedd uunniitt tteesstt pprreessssuurree aass ssppeecciiffiieedd iinn aapppplliiccaabbllee uunniitt lliitteerraattuurree..

Access holes are provided on the unit as illustrated in to accommodate a side or bottom pipe entry on 20–75 ton units and in on 90–130 ton units.

Following the guidelines listed below will enhance both the installation and operation of the furnace.

NNoottee:: In the absence of local codes, the installation

must conform with the American National Standard Z223-1a of the National Fuel Gas Code, (latest edition).

1. To assure sufficient gas pressure at the unit, use

Table 14, p. 42 as a guide to determine the

appropriate gas pipe size for the unit heating capacity listed on the unit nameplate.

2. If a gas line already exists, verify that it is sized large enough to handle the additional furnace capacity before connecting to it.

3. Take all branch piping from any main gas line from the top at 90 degrees or at 45 degrees to prevent moisture from being drawn in with the gas.

4. Ensure that all piping connections are adequately coated with joint sealant and properly tightened. Use a piping compound that is resistant to liquid petroleum gases.

5. Provide a drip leg near the unit.

6. Install a pressure regulator at the unit that is adequate to maintain 7" w.c. for natural gas while the furnace is operating at full capacity.

IImmppoorrttaanntt:: Gas pressure in excess of 14" w.c. or 0.5

psig will damage the gas train.

NNOOTTIICCEE

GGaass VVaallvvee DDaammaaggee!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinn ggaass vvaallvvee ddaammaaggee ffrroomm iinnccoorrrreecctt ggaass pprreessssuurreess,, iirrrreegguullaarr ppuullssaattiinngg ffllaammee ppaatttteerrnnss,, bbuurrnneerr rruummbbllee,, aanndd ppootteennttiiaall ffllaammee oouuttaaggeess.. UUssee aa pprreessssuurree rreegguullaattoorr ttoo pprrooppeerrllyy rreegguullaattee ggaass pprreessssuurree.. DDOO NNOOTT oovveerrssiizzee tthhee rreegguullaattoorr..

Failure to use a pressure regulating device will result in incorrect gas pressure, which can cause erratic operation due to gas pressure fluctuations as well as damage the gas valve. Oversizing the regulator will cause irregular pulsating flame patterns, burner rumble, potential flame outages, and possible gas valve damage.

If a single pressure regulator serves more than one rooftop unit, it must be sized to ensure that the inlet gas pressure does not fall below 7" w.c. with all the furnaces operating at full capacity. The gas pressure must not exceed 14" w.c. when the furnaces are off.

7. Provide adequate support for all field installed gas piping to avoid stressing the gas train and controls.

WWAARRNNIINNGG

EExxpplloossiioonn HHaazzaarrdd!!

FFaaiilluurree ttoo ffoollllooww ssaaffee lleeaakk tteesstt pprroocceedduurreess bbeellooww ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy oorr eeqquuiippmmeenntt oorr pprrooppeerrttyy--oonnllyy--ddaammaaggee.. NNeevveerr uussee aann ooppeenn ffllaammee ttoo ddeetteecctt ggaass lleeaakkss.. UUssee aa lleeaakk tteesstt ssoolluuttiioonn ffoorr lleeaakk tteessttiinngg..

8. Leak test the gas supply line using a soap-andwater solution or equivalent before connecting it to the gas train.

9. Check the supply pressure before connecting it to the unit to prevent possible gas valve damage and the unsafe operating conditions that will result.

NNoottee:: Do not rely on the gas train shutoff valves to

isolate the unit while conducting gas pressure/leak test. These valves are not designed to withstand pressures in excess of 14" w.c. or 0.5 psig.

Connecting the Gas Supply Line to the Furnace Gas Train

Follow the steps below to complete the installation between the supply gas line and the furnace. Refer to

Figure 20, p. 44 through , for the appropriate gas train

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41

IInnssttaallllaattiioonn

configuration.

1. Connect the supply gas piping using a “groundjoint” type union to the furnace gas train and check for leaks.

recommended 7" to 14" w.c. parameter for natural gas.

3. Ensure that the piping is adequately supported to avoid gas train stress.

2. Adjust the inlet supply pressure to the

Table 14. Sizing natural gas pipe mains and branches

Gas SupplyPipe Run

(ft)

10

20 726

30 583 873

40 499 747

50 442 662

60 400 600

70 368 552

80 343 514 989

90 322 482 928

100 304 455 877

125 269 403 777

150 244 366 704

175 224 336 648

200 209 313 602 960

Notes:

1. Table is based upon specific gravity of 0.60. Refer to the latest edition of the National Fuel Gas Code, Z223.1, unless superseded by local gas codes.

2. If more than one unit is served by the same main gas supply, consider the total gas input (cubic feet/hr.) and the total length when determining

the appropriate gas pipe size.

3. Obtain the Specific Gravity and BTU/Cu.Ft. from the gas company.

4. The following example demonstrates the considerations necessary when determining the actual pipe size:

Example: A 40' pipe run is needed to connect a unit with a 850 MBH furnace to a natural gas supply having a rating of 1,000 BTU/Cu.Ft. and a specific gravity of 0.60 Cu.Ft/Hour = Furnace MBH Input Gas BTU/Cu.Ft. X Multiplier Cu.Ft/Hour = 850 The above table indicates that a 2" pipe is required.

1¼" Pipe 1½" Pipe 2" Pipe 2½" Pipe 3" Pipe 4" Pipe

1,060 1,580 3,050 4,860 8,580 17,500

1,090 2,090 3,340 5,900 12,000

Table 15, p. 42

Gas Input (Cubic Feet/Hour)

1,680 2,680 4,740 9,660

1,440 2,290 4,050 8,270

1,280 2,030 3,590 7,330

1,160 1,840 3,260 6,640

1,060 1,690 3,000 6,110

1,580 2,790 5,680

1,480 2,610 5,330

1,400 2,470 5,040

1,240 2,190 4,460

1,120 1,980 4,050

1,030 1,820 3,720

1,700 3,460

Table 15. Specific gravity multipliers

Specific

Gravity Multiplier

0.50 1.10

0.55 1.04

0.60 1.00

0.65 0.96

42

RT-SVX072A-EN

Table 16. Gas heating capacity altitude correction factors

Altitude (Ft.)

Sea Level To

2000

Capacity Multiplier

Note: Correction factors are per AGA Std. 221.30 - 1964, Part VI, 6.12. Local codes may supersede.

1.00 .92 .88 .84 .80 .76 .72

2001 to

2500

2501 to

3500

3501 to

4500

4501 to

5500

5501 to

6500

Table 17. Natural gas -2–stage and modulating gas heat settings

Natural Gas

VDC

Input

Signal

High Fire

P2

Shutter Setting

Low Fire

Burner Size

VDC

Input

Signal

(a)

P0 P1

235 MBH 2-stg n/a 1780 1780 10 3250 1 5 1/2

350 MBH 2-stg n/a 2200 2200 10 3650 0.5 4 1/2

500 MBH 2-stg n/a 2900 2900 10 4900 1.5 4

500 MBH Mod 0 1900 1900 10 4900 1.5 4

800 MBH 2-stg

800 MBH Mod

Connect Gas Supply Line to Furnace

Gas Train

(b)

(b)Installation_

n/a 2280 2280 10 3950 4.5 4 7/8

0 1130 1130 10 3950 4 4 7/8

850 MBH 2-stg n/a 2290 2290 10 4070 3 5 1/2

850 MBH Mod 0 1130 1130 10 4150 3 5

1000 MBH 2-stg n/a 2800 2800 10 5150 3 4 3/4

1000 MBH Mod

0 1200 1200 10 5150 3 4.75

IInnssttaallllaattiioonn

6501 to

7500

Ratio

Regulator

Turns

Note: P0, P1, and P2 are fan speed settings in the Seimens controller. The default speeds have been preset at the factory and normally do not

need field adjustment.

(a)

binary input for 2-stage

(b)

800MBH is Horizontal Discharge. MBH is listed on gas heat rating plate.

Table 18. LP gas – 2-stage and modulating gas heat settings

Propane

VDC

Input

Signal

High Fire

P2

Shutter

Setting

Ratio

Regulator

Turns

Orifice Size

Low Fire

Burner Size

VDC

Input

Signal

(a)

P0 P1

235 MBH 2-stg n/a 1930 1930 10 3380 1.5 4 1/4 0.302

350 MBH 2-stg n/a 2050 2050 10 3300 1.5 4 0.396

500 MBH 2-stg n/a 2650 2650 10 4600 1 4 1/2 0.396

500 MBH Mod 0 1900 1900 10 4600 1 4 1/2 0.516

800 MBH 2-stg

800 MBH Mod

(b)

n/a 2100 2100 10 3760 2.5–3 4 7/8 0.516

0 1150 1150 10 3680 3 5 0.516

850 MBH 2-stg n/a 2290 2290 10 3930 2.5 5 0.516

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43

High gas switch

Ratio regulator

Manual shut-off valve

To combustion air sensor

Main gas solenoid valves

Manual shut-off vavle with 3/4” field connection

Low gas switch

High gas switch

Ratio regulator

Manual shut-off valve

To combustion air sensor

Main gas solenoid valves

Manual shut-off vavle with 1” field connection

Low gas switch

High gas switch

Ratio regulator

Manual shut-off valve

To combustion air sensor

Main gas solenoid valves

Manual shut-off vavle with 1” field connection

Low gas switch

IInnssttaallllaattiioonn

Table 18. LP gas – 2-stage and modulating gas heat settings (continued)

Propane

850 MBH Mod

1000 MBH 2-stg n/a 2600 2600 10 4430 2 5 0.516

1000 MBH Mod 0 1150 1150 10 4430 2 5 0.516

Note: P0, P1, and P2 are fan speed settings in the Seimens controller. The default speeds have been preset at the factory and normally do not

need field adjustment.

(a)

binary input for 2-stage

(b)

800MBH is Horizontal Discharge. MBH is listed on gas heat rating plate.

0 1150 1150 10 3920 2.5 5 0.516

Figure 20. 2-stage and Mod gas train for 235 to 500 MBh

Figure 21. 2-stage and Mod gas train for 850 MBh

Figure 22. 2-stage and Mod gas train for 1000 MBh

44

RT-SVX072A-EN

Ratio Regulator

To Combustion Air Sensor

Main Gas Regulator

Manual Shut-off Valve

1" Field Elbow Connection

Pilot Pressure Regulator

Pilot Solenoid Valve

Connections into Burner Box

Manual Shut-off Valve

Burner Gas Manifold

Main Gas Solenoid Valves

Manual shut-off valve

Ratio regulator

Pilot solenoid valve

Pilot pressure regulator

Manual shut-off valve

Main gas regulator

To combustion air sensor

Main gas solenoid valves

Burner gas manifold

1 1/4” field elbow connection

Connection into burner box

Flue Extension

(20-25 Ton N/A)

(30 Ton 13” Long)

(40, 60, 70, 75 Ton 25” Long)

(50-55 Ton 37” Long)

(90-130 Ton 37” Long)

Vent Cap Assembly

Heat Section

Vertical Support

Flue Tube

Pipe Clamp

Mounting Brackets

(20-25 Ton (1))

(30 Ton (2))

(40-130 Ton (4))

IInnssttaallllaattiioonn

Figure 23. Ultra modulating gas train for 500 to 850 MBh

Figure 24. Ultra modulating 1000 MBh

the installation instructions that ship with the flue assembly.)

Figure 25. Flue assembly

General Coil Piping and Connection Recommendations

Proper installation, piping, and trapping is necessary to ensure satisfactory coil operation and to prevent operational damage:

NNoottee:: The contractor is responsible for supplying the

installation hardware.

☐ Support all piping independently of the coils.

☐ Provide swing joints or flexible fittings on all

connections that are adjacent to heating coils to absorb thermal expansion and contraction strains.

☐ Install factory supplied control valves (valves ship

separately).

Flue Assembly Installation

1. Locate the flue assembly and the extension (refer to

Figure 25, p. 45 for extension usage) in the ship

with section of the unit.

2. Install the flue extension onto the flue assembly as shown in

3. Slide the pipe clamp onto the heater flue tube located inside the heater compartment.

4. Insert the tube on the flue assembly into the hole located in the vertical support for the heat section.

5. Butt both tube sections together and center the pipe clamp over joint.

Figure 25, p. 45.

6. Using the pre-punch holes in the flue assembly, extension, and the vertical support, install the appropriate number of mounting brackets (Refer to

RT-SVX072A-EN

NNOOTTIICCEE

CCoonnnneeccttiioonn LLeeaakkss!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinn ddaammaaggee ttoo tthhee ccooiill hheeaaddeerr aanndd ccaauussee ccoonnnneeccttiioonn lleeaakkss.. UUssee aa bbaacckkuupp wwrreenncchh wwhheenn aattttaacchhiinngg ppiippiinngg ttoo ccooiillss wwiitthh ccooppppeerr hheeaaddeerrss.. DDoo nnoott uussee bbrraassss ccoonnnneeccttoorrss bbeeccaauussee tthheeyy ddiissttoorrtt eeaassiillyy..

☐ When attaching the piping to the coil header, make

the connection only tight enough to prevent leaks. Maximum recommended torque is 200 footpounds.

45

IInnssttaallllaattiioonn

NNOOTTIICCEE

OOvveerr TTiigghhtteenniinngg!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinn ddaammaaggee ttoo tthhee ccooiill hheeaaddeerr.. DDoo nnoott uussee tteefflloonn--bbaasseedd pprroodduuccttss ffoorr aannyy ffiieelldd ccoonnnneeccttiioonnss bbeeccaauussee tthheeiirr hhiigghh lluubbrriicciittyy ccoouulldd aallllooww ccoonnnneeccttiioonnss ttoo bbee oovveerr ttiigghhtteenneedd..

☐ Use pipe sealer on all thread connections.

NNOOTTIICCEE

LLeeaakkaaggee!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinn eeqquuiippmmeenntt ddaammaaggee.. PPrrooppeerrllyy sseeaall aallll ppeenneettrraattiioonnss iinn uunniitt ccaassiinngg ffrroomm iinnnneerr ttoo oouutteerr ppaanneell iinn oorrddeerr ttoo pprreevveenntt uunnccoonnddiittiioonneedd aaiirr ffrroomm eenntteerriinngg tthhee mmoodduullee,, aass wweellll aass pprreevveenntt wwaatteerr ffrroomm iinnffiillttrraattiinngg tthhee iinnssuullaattiioonn..

☐ After completing the piping connections, seal

around pipe from inner panel to outer panel.

Hot Water Heat Units (SLH_)

Hot water heating coils are factory installed inside the heater section of the unit. Once the unit is set into place, the hot water piping and the factory provided 3– way modulating valve must be installed. The valve can be installed inside the heat section or near the unit. If the valve is installed in a remote location, use field supplied wiring to extend the control wires from the heater section to the valve. Two access holes are provided in the unit base as illustrated in .

Use the following guidelines to enhance both the installation and operation of the “wet heat” system.

Figure 26, p. 48 illustrates the recommended piping

configuration for the hot water coil. the coil connection sizes.

NNoottee:: The valve actuators are not waterproof. Failure to

protect the valve from moisture may result in the loss of heating control.

1. Support all field-installed piping independently from the heating coil.

2. Use swing joints or flexible connectors adjacent to the heating coil. (These devices will absorb the strains of expansion and contraction).

3. All return lines and fittings must be equal to the diameter of the “outlet” connection on the hot water coil.

4. Install a “Gate” type valve in the supply branch line as close as possible to the hot water main and upstream of any other device or takeoff.

5. Install a “Gate” type valve in the return branch line as close as possible to the return main and down stream of any other device.

Table 19, p. 47 lists

6. Install a strainer in the hot water supply branch as shown in

7. Install the 3-way valve in an upright position, piped for valve seating against the flow. Ensure that the valve location lends itself to serviceability.

8. The Type “W” hot water coil used in SLH_ units is self-venting only when the tube water velocity exceeds 1.5 feet per second (fps). If the tube velocity is less than 1.5 feet per second, either:

a. install an automatic air vent at the top of the

b. vent the coil from the top of the return header

9. Install a “Globe” type valve in the Bypass line as shown in

Figure 26, p. 48.

return header, using the tapped pipe connection

or,

down to the return piping. At the vent connection, size the return piping to provide sufficient water velocity.

Figure 26, p. 48.

Steam Heat Units

Steam heating coils are factory installed inside the heater section of the unit. The coils are pitched within the units to provide the proper condensate flow from the coil. To maintain the designed degree of pitch for the coil, the unit must be level.

Once the unit is set into place, the steam piping and the factory provided 2–way modulating valve must be installed. The valve can be installed inside the heater section or near the unit. If the valve is installed in a remote location, use field supplied wiring to extend the control wires from the heater section to the valve. Two access holes are provided in the unit base as illustrated in .

Use the following guidelines to enhance both the installation and operation of the “wet heat” system.

Figure 28, p. 49 and Figure 29, p. 49 illustrates the

recommended piping configurations for the steam coil. lists the coil connection sizes.

NNoottee:: The valve actuators are not waterproof. Failure to

protect the valve from moisture may result in the loss of heating control.

1. Support all field-installed piping independently from the heating coil.

2. Use swing joints or flexible connectors adjacent to the heating coil. (These devices will absorb the strains of expansion and contraction.)

3. Install the 2-way valve in an upright position. Ensure that the valve's location lends itself to serviceability.

4. Pitch the supply and return steam piping downward 1" per 10' of run in the direction of flow.

5. All return lines and fittings must be equal to the diameter of the “outlet” connection on the steam coil(s). If the steam trap connection is smaller that the coil “outlet” diameter, reduce the pipe size

46

RT-SVX072A-EN

IInnssttaallllaattiioonn

between the strainer and the steam trap connections only.

6. Install a 1/2" 15 degree swing-check vacuum breaker at the top of the return coil header using the tapped pipe connection. Position the vacuum breaker as close to the coil as possible.

NNoottee:: Vacuum breakers should have extended lines

from the vent ports to the atmosphere or connect each vent line to the return pipe on the discharge side of the steam traps.

7. Install a “Gate” type valve in the supply branch line as close as possible to the steam main and upstream of any other device.

8. Install a “Gate” type valve in the return branch line as close as possible to the condensate return main and downstream of any other device.

9. Install a strainer as close as possible to the inlet of the control valve and steam trap(s). Steam trap selection should be based on the maximum possible condensate flow and the recommended load factors.

10. Install a Float-and-Thermostatic (FT) type trap to maintain proper flow. It provides gravity drains and continuous discharge operation. FT type traps are required if the system includes either of the following:

a. an atmospheric pressure/gravity condensate

return

or

b. a potentially low pressure steam supply.

11. Position the outlet or discharge port of the steam trap at least 12" below the outlet connection on the coil(s). This will provide adequate hydrostatic head pressure to overcome the trap losses and assure complete condensate removal.

4400 ttoo 113300 ttoonn uunniittss

If two steam coils are stacked together, they must be piped in a parallel arrangement. The steps listed below should be used in addition to the previous

Figure 29, p. 49 illustrates the recommended

steps. piping configuration for the steam coils.

a. Install a strainer in each return line before the

steam trap.

b. Trap each steam coil separately as described in

Step 10Installation_Steam Heat Units and Step 11Installation_Steam Heat Units

to prevent

condensate backup in one or both coils.

c. In order to prevent condensate backup in the

piping header supplying both coil sections, a drain must be installed utilizing a strainer and a steam trap as illustrated in

Figure 29, p. 49.

Table 19. Connection sizes for hot water and steam

coil

Coil Connections

Unit Model and

Size

SLH_-20 to 130

SSH_-20 to 30 High or Low Heat

SSH_-40 to 75

SSH_-90 to 130 Low Heat(c)

Notes:

1. Type W coils, with center offset headers, are used in SLH* units; type NS coils are used in SSH* units

2. See Digit 9 of the unit model number to determine the heating capacity.

3. SSH*—40 to 75 ton units have multiple headers.

Heat Section

Capacity

High or Low Heat

High Heat Low

Heat

(diameter in

inches)

Supply

2½" 2½"

3" 1¼"

3" 1½"

1½” 1"

Return

RT-SVX072A-EN

47

3- Way Modu lating Valve

( Field I nst alled)

Retur n Wat er

Suppl y Wa

ter

Gat e Valv es

Bypass

Air Vent

A AB

B

Hot Wat er Coil

( ARI List ed)

OUTLET

I NLET

Pressur e Drop Balancing Globe Valv e

St rainer

Air Vent

Hot Wat er Coil

( ARI List ed)

Hot Wat er Coil

( ARI List ed)

Retur n Wat er

Bypass

I NLET

OUTLET

St rain er

Supply Wat er

Pressur e Dr op Balancin g Globe Valv e

A AB

B

3-Way Modulat in g Valve

( Field I nstalled)

IInnssttaallllaattiioonn

Figure 26. Hot water piping (20 to 75 ton)

Figure 27. Hot water piping (90 to 130 ton)

48

RT-SVX072A-EN

Figure 28. Steam coil piping (20 to 36 ton)

2- Way Mo du lat ing Valv e

( Field I nst alled)

Air Vent

St rainer

St

rainer

OUTLET

I NLET

St eam Tr ap

( Float an d Th erm osta tic Typ e)

Suppl y St eam

Retur n

Gat e Valve

Type NS

St eam Coil

( ARI List ed)

2-Way Modulating Valve

Vacuum Breaker (2 locations)

Use same size pipe as Trap Connections (3 locations)

Return Main

T

ype

NS

Stea

m Coil

s

(ARI Listed)

Steam Main

IN (2 locations)

OUT (2 locations)

12” Minimum (both outlets)

Steam Trap (Float & Thermostatic Type) (3 locations)

Strainer (3 locations)

Use same size pipe as Coil Connection (2 locations)

Use same size pipe as Steam Main

Gas Valve (3 locations)

Figure 29. Steam coil piping (40 to 130 ton)

IInnssttaallllaattiioonn

Disconnect Switch with External Handle

Units ordered with a factory mounted disconnect switch comes equipped with an externally mounted handle. This allows the operator to disconnect power from the unit without having to open the control panel door. The handle has three positions:

RT-SVX072A-EN

• “ON” - Indicates that the disconnect switch is closed, allowing the main power supply to be applied at the unit.

• “OFF” - Indicates that the disconnect switch is open, interrupting the main power supply to the unit controls.

• “RESET/LOCK” - Turning the handle to this position resets or disconnects the device. To disconnect, the handle must be turned to the Reset/Lock position. Pulling the spring-loaded thumb key out, so the lock

49

Lock in g Slo t

Lock in g Thum b Key Un der Han dl e

IInnssttaallllaattiioonn

shackle can be placed between the handle and the thumb key, locks the handle so the unit cannot be energized. Turning the handle to this position also releases the handle from the disconnect switch, allowing the control panel door to be opened.

WWAARRNNIINNGG

HHaazzaarrddoouuss VVoollttaaggee ww//CCaappaacciittoorrss!!

FFaaiilluurree ttoo ddiissccoonnnneecctt ppoowweerr aanndd ddiisscchhaarrggee ccaappaacciittoorrss bbeeffoorree sseerrvviicciinngg ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. DDiissccoonnnneecctt aallll eelleeccttrriicc ppoowweerr,, iinncclluuddiinngg rreemmoottee ddiissccoonnnneeccttss aanndd ddiisscchhaarrggee aallll mmoottoorr ssttaarrtt//rruunn ccaappaacciittoorrss bbeeffoorree sseerrvviicciinngg.. FFoollllooww pprrooppeerr lloocckkoouutt//ttaaggoouutt pprroocceedduurreess ttoo eennssuurree tthhee ppoowweerr ccaannnnoott bbee iinnaaddvveerrtteennttllyy eenneerrggiizzeedd.. FFoorr vvaarriiaabbllee ffrreeqquueennccyy ddrriivveess oorr ootthheerr eenneerrggyy ssttoorriinngg ccoommppoonneennttss pprroovviiddeedd bbyy TTrraannee oorr ootthheerrss,, rreeffeerr ttoo tthhee aapppprroopprriiaattee mmaannuuffaaccttuurreerr’’ss lliitteerraattuurree ffoorr aalllloowwaabbllee wwaaiittiinngg ppeerriiooddss ffoorr ddiisscchhaarrggee ooff ccaappaacciittoorrss.. VVeerriiffyy wwiitthh aa CCAATT IIIIII oorr IIVV vvoollttmmeetteerr rraatteedd ppeerr NNFFPPAA 7700EE tthhaatt aallll ccaappaacciittoorrss hhaavvee ddiisscchhaarrggeedd..

The handle can be locked in the “OFF” position by completing the following steps (see

1. While holding the handle in the “OFF” position, push the spring loaded thumb key, attached to the handle, into the base slot.

2. Place the lock shackle between the handle and the thumb key. This will prevent it from springing out of position.

Figure 30. Disconnect switch external handle

Figure 30, p. 50):

WWAARRNNIINNGG

LLiivvee EElleeccttrriiccaall CCoommppoonneennttss!!

FFaaiilluurree ttoo ffoollllooww aallll eelleeccttrriiccaall ssaaffeettyy pprreeccaauuttiioonnss wwhheenn eexxppoosseedd ttoo lliivvee eelleeccttrriiccaall ccoommppoonneennttss ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. WWhheenn iitt iiss nneecceessssaarryy ttoo wwoorrkk wwiitthh lliivvee eelleeccttrriiccaall ccoommppoonneennttss,, hhaavvee aa qquuaalliiffiieedd lliicceennsseedd eelleeccttrriicciiaann oorr ootthheerr iinnddiivviidduuaall wwhhoo hhaass bbeeeenn pprrooppeerrllyy ttrraaiinneedd iinn hhaannddlliinngg lliivvee eelleeccttrriiccaall ccoommppoonneennttss ppeerrffoorrmm tthheessee ttaasskkss..

NNOOTTIICCEE

UUssee CCooppppeerr CCoonndduuccttoorrss OOnnllyy!!

FFaaiilluurree ttoo uussee ccooppppeerr ccoonndduuccttoorrss ccoouulldd rreessuulltt iinn eeqquuiippmmeenntt ddaammaaggee aass tthhee eeqquuiippmmeenntt wwaass nnoott ddeessiiggnneedd oorr qquuaalliiffiieedd ttoo aacccceepptt ootthheerr ttyyppeess ooff ccoonndduuccttoorrss..

WWAARRNNIINNGG

HHoott SSuurrffaaccee!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinn sseevveerree bbuurrnnss.. DDoo nnoott ttoouucchh tthhee hheeaatt eexxcchhaannggeerr bbooaarrdd wwiitthh bbaarree hhaannddss wwhhiillee ddiissaasssseemmbblliinngg tthhee ppaann.. AAllllooww ttoo ccooooll aanndd ppuutt oonn pprrooppeerr PPeerrssoonnaall PPrrootteeccttiivvee EEqquuiippmmeenntt ((PPPPEE)) bbeeffoorree sseerrvviicciinngg..

• Verify that the power supply available is compatible with the unit nameplate rating for all components. The available power supply must be within 10% of the rated voltage stamped on the nameplate.

• Use only copper conductors to connect the 3-phase power supply to the unit.

NNoottee:: All field installed wiring must conform to NEC

guidelines as well as State and Local codes.

An overall layout of the field required power wiring is illustrated in . To ensure that the unit supply power wiring is properly sized and installed, follow these guidelines:

50

Electric Heat Units (SEH_)

SEH_ (20-75 ton) electric heat units operating on 200/ 230 volts require two power supplies as illustrated in . Unless the unit was ordered with the optional factory mounted, non-fused disconnect switches, two fieldsupplied disconnect switches must be installed per NEC requirements. The power wires for the electric heat are routed into the electric heat control panel using the through-the-base access provided in the heating section. Refer to the appropriate illustration in , (unit base layout and electrical entrance diagram), for dimensional data. For 20-130 ton units operating on 460/575 volts, only one field installed disconnect switch is required, as illustrated in and .

Use the information provided in Service Sizing data and the “Power Wire Sizing & Protection Device Equations,” to determine the appropriate wire size and Maximum Over current Protection for the heaters/unit.

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_

3XD5

OR

3QB4

2XD1

OR

2QB1

IInnssttaallllaattiioonn

NNoottee:: Each power supply must be protected from short

circuit and ground fault conditions. To comply with NEC, protection devices must be sized according to the “Maximum Over current Protection” (MOP) or “Recommended Dual Element” (RDE) fuse size data on the unit nameplate.

Provide grounding for the supply power circuit in the electric heat control box.

Main Unit Power Wiring

to lists the field connection wire ranges for both the main power terminal block (2XD1 on 20-75T units / 1XD1 on 90-130T units) and the optional main power disconnect switch (2QB1 on 20-75T units / 1QB1 on 90130T units). Service Sizing Data lists the component electrical data.

The electrical service must be protected from over current and short circuit conditions in accordance with NEC requirements. Protection devices must be sized according to the electrical data on the nameplate. Refer to the equations listed in the product catalog to determine the following:

• the appropriate electrical service wire size based on “Minimum Circuit Ampacity” (MCA)

• the “Maximum Over Current Protection” (MOP)

device

• the “Recommended Dual Element fuse size” (RDE)

WWAARRNNIINNGG

PPrrooppeerr FFiieelldd WWiirriinngg aanndd GGrroouunnddiinngg RReeqquuiirreedd!!

FFaaiilluurree ttoo ffoollllooww ccooddee ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. AAllll ffiieelldd wwiirriinngg MMUUSSTT bbee ppeerrffoorrmmeedd bbyy qquuaalliiffiieedd ppeerrssoonnnneell.. IImmpprrooppeerrllyy iinnssttaalllleedd aanndd ggrroouunnddeedd ffiieelldd wwiirriinngg ppoosseess FFIIRREE aanndd EELLEECCTTRROOCCUUTTIIOONN hhaazzaarrddss.. TToo aavvooiidd tthheessee hhaazzaarrddss,, yyoouu MMUUSSTT ffoollllooww rreeqquuiirreemmeennttss ffoorr ffiieelldd wwiirriinngg iinnssttaallllaattiioonn aanndd ggrroouunnddiinngg aass ddeessccrriibbeedd iinn NNEECC aanndd yyoouurr llooccaall// ssttaattee//nnaattiioonnaall eelleeccttrriiccaall ccooddeess..

The location of the electrical service entrance is illustrated in . It is important to complete the unit power wiring connections onto either the main terminal block (2XD1 on 20-75T units / 1XD1 on 90-130T units) or the factory mounted, non-fused disconnect switch (2XD1 on 20-75T units / 1XD1 on 90-130T units). . Refer to the diagrams that shipped with the unit for specific termination points.

Provide proper grounding for the unit in accordance with local and national codes.

Figure 31. Typical field power wiring (20 to 75 ton)

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51

1XD1

OR

1QB1

Aux. Control Box

IInnssttaallllaattiioonn

Figure 32. Typical field power wiring (90 to 130 ton)

52

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CUSTOMER CONNECTION WIRE RANGE

WI-

NOTES:

TERMINAL BLOCK AND

STD SCCR DISCONNECT

SWITCH SIZES ARE

CALCULATED BY

SELECTING THE SIZE

GREATER THAN OR

EQUAL TO 1.15 X (SUM

OF UNIT LOADS). SEE

UNIT LITERATURE FOR

UNIT LOAD VALUES.

HIGH SCCR

DISCONNECT SWITCH SIZES ARE CALCULATED BY SELECTING THE SIZE

GREATER THAN OR

EQUAL TO 1.25 X (SUM

OF UNIT LOADS). SEE

UNIT LITERATURE FOR

UNIT LOAD VALUES.

(a)

250A DISCONNECT SWITCHES CAN ACCOMMODATE 4 AWG - 4/0 AWG IF LUG SCREWS ARE CHANGED TO S1A59551 KIT (PROVIDED WITH UNIT)

COMPONENT

TYPE/SIZE

510A

TERMINAL

BLOCK

760A

TERMINAL

BLOCK

150A

DISCONNECT

SWITCH (STD

SCCR)

250A

DISCONNECT

SWITCH (STD

SCCR)

400A

DISCONNECT

SWITCH (STD

SCCR)

600A

DISCONNECT

SWITCH (STD

SCCR)

150A

DISCONNECT

SWITCH (HIGH

SCCR)

250A

DISCONNECT

SWITCH (HIGH

SCCR)

400A

DISCONNECT

SWITCH (HIGH

SCCR)

600A

DISCONNECT

SWITCH (HIGH

SCCR)

RE QTY PER

PH-

ASE

2

1

2

1

2

WIRE

RANGE

6 AWG -

250 kcmil

4 AWG -

500 kcmil

14 AWG 3/0 AWG

3/0 AWG

- 350

(a)

kcmil

2/0 AWG

- 500 kcmil

2/0 AWG

- 500 kcmil

14 AWG 3/0 AWG

3/0 AWG

- 350

(a)

kcmil

2/0 AWG

- 500 kcmil

2/0 AWG

- 500 kcmil

225500AA DDiissccoonnnneecctt sswwiittcchh wwiirree bbiinnddiinngg ssccrreewwss

The 250A disconnect switch (standard and high SCCR) installed for main power connection accommodates 4 AWG – 350 kcmil wires on the "OFF" side. As shipped from the factory, the wire binding screws only accommodate 3/0 AWG – 350 kcmil wires. If 4 AWG – 2/ 0 AWG field power wiring is used, then the factory installed wire binding screws must be replaced with those that are provided with the kit installed near the disconnect switch (these screws should have a blue top surface). See the kit for instructions on changing the wire binding screws.

Electrical Service Sizing

To correctly size electrical service wiring for a unit, find the appropriate calculations listed below. Each type of unit has its own set of calculations for MCA (Minimum Circuit Ampacity), and MOP (Maximum Overcurrent Protection). Read the load definitions that follow and then find the appropriate set of calculations based on unit type.

NNoottee:: Set 1 is for cooling only, cooling with gas heat, or

cooling with hot water/steam heat units. Set 2 is for cooling with electric heat units

Load Definitions: (To determine load values, see the Electrical Service Sizing Data Tables on the following page.)

LOAD1 = Current of the largest motor (compressor or fan motor)

LOAD2 = Sum of the currents of all remaining motors

LOAD3 = Current of electric heaters

LOAD4 = Any other load rated at 1 AMP or more

SAH_ (Cooling Only) units

SEH_ (Cooling with Electric Heat) units

SXH_ (Extended Casing Cooling Only) units

SLH_ and SSH_ (Cooling with Hydronic Heat) units

SFH_ (Cooling with Gas Heat) units

Load Definitions

LOAD 1

LOAD 2

LOAD 3 Current of electric heaters

LOAD 4

Load 4 — Control Power Transformer Loads for All Modes

20–75 ton units

90–130 ton units

Set 1: Cooling Only Rooftop Units and Cooling with Gas Heat or Hydronic Heat Rooftop Units

MCA = (1.25 x LOAD1) + LOAD2 + LOAD4

MOP = (2.25 x LOAD1) + LOAD2 + LOAD4

Select a fuse rating equal to the MOP value. If the MOP value does not equal a standard fuse size as listed in NEC 240-6, select the next lower standard fuse rating.

Current (RLA, MRC, FLA or MOC) of the largest motor (compressor or fan motor)

Sum of the currents (RLA, MRC, FLA or MOC) of all remaining motors

Any other load rated at 1 amp or more

200V 230V 460V 575V

10.0

Amps

— —

9.0

Amps

4.5

Amps

9.0

Amps

3.5 Amps

7.0 Amps

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53

IInnssttaallllaattiioonn

NNoottee:: If selected MOP is less than the MCA, then select

the lowest standard maximum fuse size which is equal to or larger than the MCA, provided the selected fuse size does not exceed 800 amps.

Set 2: Rooftop units with Electric Heat

SSiinnggllee SSoouurrccee PPoowweerr uunniittss ((446600VV aanndd 557755VV))

To arrive at the correct MCA and MOP values for these units, two sets of calculations must be performed. First calculate the MCA and MOP values as if the unit was in cooling mode (use the equations given in Set 1). Then calculate the MCA and MOP values as if the unit were in heating mode as follows. (Keep in mind when determining LOADS that the compressors don't run while the unit is in heating mode).

For units using heaters less than 50 kW:

MCA = 1.25 x (LOAD1 + LOAD2 + LOAD4) + (1.25 x LOAD3)

For units using heaters equal to or greater than 50 kW:

MCA = 1.25 x (LOAD1 + LOAD2 + LOAD4) + LOAD3

The nameplate MCA value will be the larger of the cooling mode MCA value or the heating mode MCA value calculated above.

MOP = (2.25 x LOAD1) + LOAD2 + LOAD3 + LOAD4

The selection MOP value will be the larger of the cooling mode MOP value or the heating mode MOP value calculated above.

Select a fuse rating equal to the MOP value. If the MOP value does not equal a standard fuse size as listed in NEC 240-6, select the next lower standard fuse rating.

NNoottee:: If selected MOP is less than the MCA, then select

the lowest standard maximum fuse size which is equal to or larger than the MCA, provided the selected fuse size does not exceed 800 amps.

DDuuaall SSoouurrccee PPoowweerr uunniittss ((220000––223300VV wwiitthh EElleeccttrriicc HHeeaatt))

These units will have two circuit values shown on the nameplate. The first circuit value will be the refrigeration (cooling mode) values calculated per Set

1. The second set of circuit values shown on the nameplate will be for the electric heating circuit as follows.

MCA = (1.25 x LOAD3)

MOP = (2.25 x LOAD3)

Select a fuse rating for the electric heating circuit that is equal to the MOP value obtained in the equation above. If the MOP value does not equal a standard fuse size as listed in NEC 240-6, select the next lower standard fuse rating (see note below for exception).

NNoottee:: If the available MOP option is less than the MCA

obtained in the equation above, then reselect the lowest standard maximum fuse size which is equal to, or larger, than the MCA, provided the reselected fuse size does not exceed 800 amps.

54

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Service Sizing Data

Table 20. Compressor electrical service sizing data (20 to 130 tons)

Tonnage

Compres-

RLA/MRC

sors

No. of

20 Standard

20 High

Efficiency

20 Variable

Speed

25 Standard

25 High

Efficiency

25 Variable

Speed

30 Standard

30 High

Efficiency

30 Variable

Speed

40 Standard

40 High

Efficiency

40 Variable

Speed

1 52.8 300 52.8 300 23.8 150 20.5 109

1 33.5 240 33.5 240 15.3 130 11.4 94

1 52.8 300 52.8 300 23.8 150 20.5 109

1 33.5 240 33.5 240 15.3 130 11.4 94

(b)

1

1 36.8 267 32.0 267 16.0 142 15.2 103

1 27.7 203 27.7 203 14.5 98 12.5 84

2 36.8 267 32.0 267 16.0 142 15.2 103

1 57.8 340 57.4 340 27.1 179 24.4 132

1 37.1 240 36.4 240 17.0 140 13.3 108

(b)

1

1 40.3 267 40.3 267 19.1 142 15.8 103

1 27.7 203 27.7 203 14.5 98 12.5 84

2 40.3 267 40.3 267 19.1 142 15.8 103

1 27.7 203 27.7 203 14.5 98 12.5 84

2 40.3 267 40.3 267 19.1 142 15.8 103

(b)

1

1 51.3 315 45.6 315 22.3 158 19.1 136

1 30.6 203 28.4 203 13.3 98 11.9 84

3 36.8 267 32.0 267 16.0 142 15.2 103

2 30.6 203 28.4 203 13.3 98 11.9 84

2 36.8 267 32.0 267 16.0 142 15.2 103

(b)

1

2 36.8 267 32.0 267 16.0 142 15.2 103

50 Standard 4 40.3 267 40.3 267 19.1 142 15.8 103

50 High

Efficiency

50 Variable

Speed

55 Standard

55 High

Efficiency

55 Variable

Speed

2 40.3 267 40.3 267 19.1 142 15.8 103

2 46.2 304 42.3 304 20.1 147 17.2 122

(b)

1

2 46.2 304 42.3 304 20.1 147 17.2 122

2 51.3 315 45.6 315 22.3 158 19.1 136

4 46.2 304 42.3 304 20.1 147 17.2 122

(b)

1

1 46.2 304 42.3 304 20.1 147 17.2 122

1 51.3 315 45.6 315 22.3 158 19.1 136

60 Standard 4 51.3 315 45.6 315 22.3 158 19.1 136

60 High

Efficiency

60 Variable

Speed

3 51.3 315 45.6 315 22.3 158 19.1 136

1 59.8 345 52.0 345 26.0 155 23.1 126

(b)

1

1 51.3 315 45.6 315 22.3 158 19.1 136

1 59.8 345 52.0 345 26.0 155 23.1 126

2 59.8 345 52.0 345 26.0 155 23.1 126

70 Standard

1 59.6 320 51.8 320 25.9 160 20.7 135

1 77.4 485 69.3 485 33.7 215 27.1 175

70 High

Efficiency

70 Variable

Speed

75 Standard

75 High

Efficiency

4 59.8 345 52.0 345 26.0 155 23.1 126

(b)

1

1 59.6 320 51.8 320 25.9 160 20.7 135

1 77.4 485 69.3 485 33.7 215 27.1 175 2 59.6 320 51.8 320 25.9 160 20.7 135 2 77.4 485 69.3 485 33.7 215 27.1 175 1 59.6 320 51.8 320 25.9 160 20.7 135 3 77.4 485 69.3 485 33.7 215 27.1 175

200 V 230 V 460 V 575 V

(a)

LRA

(ea.) (ea.) (ea.) (ea.)

(ea.)

34.3

38.6

52.3

85.9

84.8

96.2

RLA/MRC

N/A

29.9

33.6

45.5

74.7

73.7

78.7

(a)

LRA

(ea.)

N/A

RLA/MRC

14.9

23.1

22.7

24.6

39.6

45.0

(a)

LRA

(ea.)

N/A

RLA/MRC

12.5

14.1

19.1

32.3

31.9

36.2

(a)

LRA

(ea.)

N/A

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55

IInnssttaallllaattiioonn

Table 20. Compressor electrical service sizing data (20 to 130 tons) (continued)

Tonnage

75 Variable

Speed

90 Standard

and High

Efficiency

No. of

Compres-

sors

1

RLA/MRC

(b)

1 59.6 320 51.8 320 25.9 160 20.7 135 2 59.8 345 52.0 345 26.0 155 23.1 126

4

200 V 230 V 460 V 575 V

(a)

LRA

(ea.) (ea.) (ea.) (ea.)

(ea.)

91.3

RLA/MRC

N/A

N/A N/A N/A N/A

79.1

(a)

LRA

(ea.)

N/A

RLA/MRC

(a)

43.0

33.7 215 27.1 175

LRA

(ea.)

N/A

RLA/MRC

33.2

(a)

LRA

(ea.)

N/A

105

Standard

115

Standard

130

Standard

(a)

RLA (Rated Load Amps) applies to fixed speed compressors; MRC (Max Rated Current) applies to variable speed compressors.

(b)

Variable Speed Compressor.

2 2 1 3 3 1

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

33.7 215 27.1 175

45.9 260 36.7 210

33.7 215 27.1 175

45.9 260 36.7 210

55.8 320 44.6 235

Table 21. Electrical service sizing data — condenser fan motors — 20 to 130 tons

Tonnage, Type

20S, 20H

20S, 20H Low Ambient

20V

No. of Motors

2 1

(b)

1

(b)

2

25S 2

25S Low Ambient

25H, 25V 30S, 30H

30S, 30H Low Ambient

30V

1

(b)

1

(b)

2

2 1

(b)

1

(b)

2

40S 4

40S Low Ambient

40H, 40V 50S, 55S

50S, 55S Low Ambient

50H, 50V, 55H, 55V 4

60S, 60H, 70S, 70H, 75S, 75H

60S, 60H, 70S, 70H, 75S, 75H Low Ambient

60V, 70V, 75V 6

2

(b)

2

(b)

4

4 2

(b)

2

(b)

6 4

(b)

2

(b)

90S 8

90S Low Ambient

90H, 105S, 115S

90H, 105S, 115S Low Ambient

6

(b)

2

10

8

(b)

2

130S 12

130S Low Ambient

(a)

FLA (Full Load Amps) applies to fixed speed motors; MOC (Max Operating Current) applies to variable speed motors.

(b)

Variable speed motor.

10

(b)

2

200 V 230 V 460 V 575 V

FLA/MOC

(a)

FLA/MOC

(a)

FLA/MOC

(ea.) (ea.) (ea.) (ea.)

5.4 5.4 2.7 2.2

4.6 4.6 2.1 1.8

5.4 5.4 2.7 2.2

4.6 4.6 2.1 1.8

5.4 5.4 2.7 2.2

4.6 4.6 2.1 1.8

5.4 5.4 2.7 2.2

4.6 4.6 2.1 1.8

5.4 5.4 2.7 2.2

4.6 4.6 2.1 1.8

4.1 4.1 1.8 1.4

4.1 4.1 1.8 1.4 3 3 1.4 1.2 3 3 1.4 1.2

N/A N/A N/A N/A

N/A N/A N/A N/A N/A N/A

N/A N/A

(a)

FLA/MOC

1.8 1.4

2.2 1.5

1.8 1.4

2.2 1.5

1.8 1.4

2.2 1.5

(a)

56

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IInnssttaallllaattiioonn

Table 22. Electrical service sizing data — supply/relief/return motors WITH bypass option — 20 to 130 tons

200 V 230 V 460 V 575 V

FLA (ea.) FLA (ea.) FLA (ea.) FLA (ea.)

Motor Horsepower Supply/Relief/Return Fan Motor (4 pole)

3 9.7 8.4 4.2 3.4 5 15.3 13.2 6.6 5.3

7.5 22.8 19.6 9.8 7.8 10 29.5 25.2 12.6 10.1 15 43.0 36.0 18.0 15.0 20 56.1 49.4 24.7 19.5 25 72.0 61.0 30.5 24.8 30 84.0 73.2 36.6 29.0 40

Motor Horsepower Supply Fan Motor (6 pole)

Notes:

50

3 10.1 9.0 4.5 3.6 5 17.0 14.8 7.4 5.6

7.5 25.0 22.0 11.0 9.0 10 32.0 28.6 14.3 11.9 15 47.0 41.0 20.5 16.3 20 63.0 54.0 27.0 20.8

1. FLA is for individual motors by HP, not total unit supply fan HP.

2. Return fan motors are available in 3-20 Hp

3. 40 and 50 Hp motor available as standard in 460 and 575 volt only

4. DDP fans selected under 1,700 RPM will have 6-pole motors

N/A N/A N/A N/A

49.0 39.0

59.0 47.2

Table 23. Electrical service sizing data — single supply/relief/return motors WITHOUT bypass option — 20 to 130

tons

200 V 230 V 460 V 575 V

Motor Horsepower Supply/Relief/Return Fan Motor (4 pole)

Motor Horsepower Supply Fan Motor (6 pole)

Notes:

3 8.8 7.6 3.8 3.1 5 13.9 12.0 6.0 4.8

7.5 20.7 17.8 8.9 7.1 10 26.8 22.9 11.5 9.2 15 39.1 32.7 16.4 13.6 20 51.0 44.9 22.5 17.7 25 65.5 55.5 27.7 22.5 30 76.4 66.5 33.3 26.4 40 50

3 9.2 8.2 4.1 3.3 5 15.5 13.5 6.7 5.1

7.5 22.7 20.0 10.0 8.2 10 29.1 26.0 13.0 10.8 15 42.7 37.3 18.6 14.8 20 57.3 49.1 24.5 18.9

1. MOC (Max Operating Current) is VFD Input Current when fan motor is operating at FLA

2. MOC is for individual motors by HP, not total unit supply fan HP.

3. Return fan motors are available in 3-20 Hp.

4. 40 and 50 Hp motor available as standard in 460 and 575 volt only.

5. DDP fans selected under 1,700 RPM will have 6-pole motors.

MOC (ea.) MOC (ea.) MOC (ea.) MOC (ea.)

N/A N/A N/A N/A

44.5 35.5

53.6 42.9

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57

IInnssttaallllaattiioonn

Table 24. Electrical service sizing data — dual DDP supply fan motors WITHOUT bypass option — 60 to 75 tons

200 V 230 V 460 V 575 V

Motor Horsepower 2x Supply Fan Motors (4 pole)

2x 7.5HP 41.5 35.6 17.8 14.2

2x 10HP 53.6 45.8 22.9 18.4 2x 15HP 78.2 65.5 32.7 27.3 2x 20HP 2x 25HP

Motor Horsepower 2x Supply Fan Motors (6 pole)

2x 5HP 30.9 26.9 13.5 10.2

2x 7.5HP 45.5 40.0 20.0 16.4

2x 10HP 58.2 52.0 26.0 21.6 2x 15HP 85.5 74.5 37.3 29.6

Notes:

1. MOC (Max Operating Current) is VFD Input Current when fan motors are operating at FLA

2. MOC for dual DDP supply fans without bypass represents the total VFD input current for both supply fan motors.

3. Dual DDP fans selected under 1,700 RPM will have 6-pole motors

Table 25. Electrical service sizing data —electric heat module (electric heat units only) — 20 to 130 tons

Module

kW

30 83.3 72.2 36.1 28.9 50 138.8 120.3 60.1 48.1 70 194.3 168.4 84.2 67.4

90 249.8 216.5 108.3 86.6 110 305.3 264.6 132.3 105.9 130 - - 156.4 125.1 150 - - 180.4 144.3 170 - - 204.5 163.6 190 - - 228.5 182.8

Note: Electric heat FLA are determined at 208, 240, 480 and 600

200V 230V 460V 575V

volts.

MOC MOC MOC MOC

N/A N/A N/A N/A

Electric Heat FLA

44.9 35.5

55.5 45.1

Table 26. Voltage utilization range

Unit Voltage Voltage Utilization Range

200/60/3 180-220

230/60/3 207-253

460/60/3 414-506

575/60/3

Field Installed Control Wiring

The IntelliPak rooftop has many operating modes. The flexibility of having several system modes depends upon the type of sensor and/or remote panel selected to interface with the Symbio 800. An overall layout of the various control options available for a Single Zone application, with the required number of conductors for each device, is illustrated beginning with .

illustrates the various control options with the

52

required number of conductors for a Variable Air Volume application.

NNoottee:: All field wiring must conform to NEC guidelines

as well as state and local codes.

Figure 32, p.

517-633

WWAARRNNIINNGG

HHaazzaarrddoouuss VVoollttaaggee!!

FFaaiilluurree ttoo ddiissccoonnnneecctt ppoowweerr bbeeffoorree sseerrvviicciinngg ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. DDiissccoonnnneecctt aallll eelleeccttrriicc ppoowweerr,, iinncclluuddiinngg rreemmoottee ddiissccoonnnneeccttss bbeeffoorree sseerrvviicciinngg.. FFoollllooww pprrooppeerr lloocckkoouutt//ttaaggoouutt pprroocceedduurreess ttoo eennssuurree tthhee ppoowweerr ccaann nnoott bbee iinnaaddvveerrtteennttllyy eenneerrggiizzeedd.. VVeerriiffyy tthhaatt nnoo ppoowweerr iiss pprreesseenntt wwiitthh aa vvoollttmmeetteerr..

58

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IInnssttaallllaattiioonn

WWAARRNNIINNGG

PPrrooppeerr FFiieelldd WWiirriinngg aanndd GGrroouunnddiinngg RReeqquuiirreedd!!

FFaaiilluurree ttoo ffoollllooww ccooddee ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. AAllll ffiieelldd wwiirriinngg MMUUSSTT bbee ppeerrffoorrmmeedd bbyy qquuaalliiffiieedd ppeerrssoonnnneell.. IImmpprrooppeerrllyy iinnssttaalllleedd aanndd ggrroouunnddeedd ffiieelldd wwiirriinngg ppoosseess FFIIRREE aanndd EELLEECCTTRROOCCUUTTIIOONN hhaazzaarrddss.. TToo aavvooiidd tthheessee hhaazzaarrddss,, yyoouu MMUUSSTT ffoollllooww rreeqquuiirreemmeennttss ffoorr ffiieelldd wwiirriinngg iinnssttaallllaattiioonn aanndd ggrroouunnddiinngg aass ddeessccrriibbeedd iinn NNEECC aanndd yyoouurr llooccaall// ssttaattee//nnaattiioonnaall eelleeccttrriiccaall ccooddeess..

The various field installed control panels, sensors, switches, and contacts discussed in this section require both AC and DC consideration. These diagrams are representative of standard applications and are provided for general reference only. Always refer to the wiring diagram that shipped with the unit for specific electrical schematic and connection information.

Controls using 24 VAC

Before installing any connecting wiring, refer to , and

Figure 2, p. 19.for the electrical access locations

provided on the unit, and conductor sizing guidelines. Then check the following:

Table 27, p. 59 for AC

Transformer for Expansion Module

When the expansion module is installed, a 115Vac primary - 24Vac secondary - 75VA transformer is provided for customer use. However, the 20T standard efficiency, 20T high efficiency, and 25T standard efficiency units utilize this transformer to power a compressor solenoid so the available VA for customer use is limited to 70VA.

Controls using DC Analog Input/ Outputs

Before installing any connecting wiring between the unit and components utilizing a DC analog input\output signal, refer to the appropriate illustration in and

2, p. 19

the unit and Table 28, p. 59 for conductor sizing guidelines. Then check the following:

for the electrical access locations provided on

NNOOTTIICCEE

UUssee CCooppppeerr CCoonndduuccttoorrss OOnnllyy!!

FFaaiilluurree ttoo uussee ccooppppeerr ccoonndduuccttoorrss ccoouulldd rreessuulltt iinn eeqquuiippmmeenntt ddaammaaggee aass tthhee eeqquuiippmmeenntt wwaass nnoott ddeessiiggnneedd oorr qquuaalliiffiieedd ttoo aacccceepptt ootthheerr ttyyppeess ooff ccoonndduuccttoorrss..

Figure

NNOOTTIICCEE

UUssee CCooppppeerr CCoonndduuccttoorrss OOnnllyy!!

FFaaiilluurree ttoo uussee ccooppppeerr ccoonndduuccttoorrss ccoouulldd rreessuulltt iinn eeqquuiippmmeenntt ddaammaaggee aass tthhee eeqquuiippmmeenntt wwaass nnoott ddeessiiggnneedd oorr qquuaalliiffiieedd ttoo aacccceepptt ootthheerr ttyyppeess ooff ccoonndduuccttoorrss..

1. Use copper conductors unless otherwise specified.

2. Ensure that the AC control wiring between the controls and the unit's termination point does not exceed three (3) ohms/conductor for the length of the run.

NNoottee:: Resistance in excess of 3 ohms per conductor

may cause component failure due to insufficient AC voltage supply.

3. Make sure to check all loads and conductors for grounds, shorts, and mis-wiring.

Table 27. AC conductors

Distance from Unit to

Control

000-460 feet

461-732 feet

733-1000 feet

4. Do not run the AC low voltage wiring in the same conduit with the high voltage power wiring.

Recommended Wire

Size

18 gauge

16 gauge

14 gauge

1. Use standard copper conductor thermostat wire unless otherwise specified.

2. Ensure that the wiring between the controls and the unit termination point does not exceed two and a half (2.5) ohms/conductor for the length of the run.

NNoottee:: Resistance in excess of 2.5 ohms per conductor

can cause deviations in the accuracy of the controls.

Table 28. DC conductors

Distance from Unit to

Control

000-150 feet

151- 240 feet

241- 385 feet

386- 610 feet

611- 970 feet

3. Do not run the electrical wires transporting DC signals in or around conduit housing high voltage wires. Units wired for a BACnet® Communication, LonTalk® communication Interface (LCI), or Modbus option which utilizes a serial communication link must:

• be 18 AWG shielded twisted pair cable (Belden 8760 or equivalent).

• not exceed 5,000 feet maximum for each link.

Recommended Wire

Size

22 gauge

20 gauge

18 gauge

16 gauge

14 gauge

RT-SVX072A-EN

59

IInnssttaallllaattiioonn

• not pass between buildings.

Variable Air Volume System Controls

Discharge Temperature Control Changeover Contacts

These contacts are connected to the customer connection 1KF11 when daytime heating on Discharge Temperature Control units with internal or external hydronic heat is required. Daytime (occupied) heating switches the system to a Zone Temperature Control type mode of operation. Refer to the unit wiring diagram for the field connection terminals in the unit control panel. The switch must be rated at 12 ma @ 24 VDC minimum.

Remote Zone Sensor (BAYSENS073*)

This electronic analog sensor features remote zone sensing and timed override with override cancellation. It is used as the source for zone temperature control. Refer to for the Temperature vs. Resistance coefficient.

Remote Zone Sensor (BAYSENS074*)

This electronic analog sensor features single setpoint capability and timed override with override cancellation. It is used with a Trane Integrated Comfort™ system. Refer to for the Temperature vs. Resistance coefficient.

Equipment Stop

A field-supplied single pole single throw switch can be used to shut down the unit operation. This switch is a binary input wired to the customer connection, wired to 1XD24 (see unit diagrams). Ensure the appropriate jumper wire at 1XD24 is removed when this switch is installed. When opened, the unit shuts down immediately and can be canceled by closing the switch. The switch must be rated for 12 ma @ 24 VDC minimum.

Ventilation Override Mode (VOM) Contacts

Ventilation Override Modes (VOM) give the building controller the ability to override normal unit operation and provide special ventilation operation. VOM is initiated only at the provided five binary inputs (Mode A, Mode B, Mode C, Mode D, Mode E). When any of the normally open contacts are closed, VOM initiates specified functions such as space pressurization, relief, purge, purge with supply air pressure control, and unit off when any one of the corresponding binary inputs are activated. The compressors and condenser fans, and all other components not directly controlled via VOM events, are disabled during the ventilation operation. If more than one ventilation sequence is

activated, Mode A has highest priority, Mode E has lowest.

This function gives the customer the ability to override normal unit operation via a supervisory controller. Typically, these requests originate from a fire control panel. Flexibility is provided by allowing the customer to re-define each of the five responses at the front panel, along with allowing each individual response to be ‘Locked’ to insure expected operation is not changed. See Programming Guide for more information.

This feature is optional. When configured VOM has priority over Emergency Override, System Mode Off, and normal unit operation. The following overrides will prevent or terminate VOM operation.

• Local Stop

• Equipment Stop

• Emergency Stop

• Manual Control

When any VOM Mode (A, B, C, D, E) input is activated or closed, the VOM mode of operation will begin in less than 10 seconds, and a VOM Relay binary output will energize/close. Heating capacity, cooling capacity, and Rapid Restart will be disabled/terminated.

Refer to in response to VOM binary inputs Modes. VOM inputs are fully configurable; therefore, provides the factory default settings.

If one or more of the 5 VOM inputs are closed, the unit will enter the VOM mode with the highest priority (A highest, E lowest). Should the unit be in an active VOM mode and a VOM input of higher priority is closed, the unit will immediately transition to the higher priority mode. Should the unit be in an active VOM mode and a VOM input of lower priority is closed, the unit will not change to this lower priority mode until the current (higher priority) VOM mode binary input is opened.

When all VOM inputs are open, within 15 seconds, VOM terminates. All unit components will be reset OFF or CLOSED, and after Unit Power Up Delay is honored, the unit will start normal operation.

These functions are controlled by binary inputs wired to the VOM. They can be initiated by a toggle switch, or a time clock. The switch must be rated for 12 ma @ 24 VDC minimum.

Table 29, p. 61 summarizing the unit operation

Table 29, p. 61

60

RT-SVX072A-EN

IInnssttaallllaattiioonn

Table 29. VOM

VOM Input Output

Mode A Supply fan Off/0% Off

(Unit Off ) Outdoor air

Mode B Supply fan On/100%

(Pressurize) Outdoor air

Mode C Supply fan Off/0% Fan Only

(Depressu-

rize)

Mode D Supply fan On/100%

(Purge) Outdoor air

damper

Relief fan /

Relief damper

Return Fan /

Relief

Damper

VAV Box

Relay

damper

Relief fan /

Relief damper

Return fan /

Relief damper

VAV Box

Relay

Outdoor air

damper

Relief fan /

Relief damper

Return fan /

Relief damper

VAV Box

Relay

damper

Relief fan /

Relief damper

Return fan /

Relief damper

VAV Box

Relay

Operation Heat Cool

Closed

Off/Closed

Energized

(1)

100%

Off/Closed

Energized

0%

On/Open

De-engerized

(1)

Open

On/Open

Energized

Mode

Status

Fan Only

Table 29. VOM (continued)

VOM Input Output Operation Heat Cool

Mode E Supply fan On/Duct

(Purge with Duct Static Pressure Control)

Outdoor air damper

Relief fan / Relief damper

VAV Box Relay

Static

Pressure

Control

Open

On/Open

Energized

Mode

Status

Fan Only

Refer to the appropriate Programming, Troubleshooting Guide (PTG latest edition) for programming instructions.

Emergency Stop Switch

A normally closed (N.C.) switch wired to the customer connection (1KF11) and 1XD24 may be used during emergency situations to shut down all unit operations. When opened, an immediate shutdown occurs. An emergency stop diagnostic is entered into the user interface. The switch must be rated for 12 ma @ 24 VDC minimum.

Occupied/Unoccupied Contacts

This binary input provides the Occupied/Unoccupied status information of the building to the Symbio 800. It can be initiated by a time clock, or a Building Automation System control output. The relay’s contacts must be rated for 12 ma @ 24 VDC minimum.

Wall or Duct Mount Humidity Sensor (BAYSENS036* or BAYSENS037*)

This field-installed humidity sensor is mounted in the space or in the return air duct, sending an analog input to the customer connection (1KF10) and 1XD26. It must be ordered/installed with modulating hot gas reheat, but can also be used for humidification applications.

RT-SVX072A-EN

61

Unit Replacement

This section covers the removal and preparation necessary for setting the R-410A replacement unit in place. For more detailed information, please see the Rooftop Replacement Engineering Bulletin — RTPRB027*–EN.

WWAARRNNIINNGG

RR--441100AA RReeffrriiggeerraanntt uunnddeerr HHiigghheerr PPrreessssuurree tthhaann RR--2222!!

FFaaiilluurree ttoo uussee pprrooppeerr eeqquuiippmmeenntt oorr ccoommppoonneennttss aass ddeessccrriibbeedd bbeellooww,, ccoouulldd rreessuulltt iinn eeqquuiippmmeenntt ffaaiilliinngg aanndd ppoossssiibbllyy eexxppllooddiinngg,, wwhhiicchh ccoouulldd rreessuulltt iinn ddeeaatthh,, sseerriioouuss iinnjjuurryy,, oorr eeqquuiippmmeenntt ddaammaaggee.. TThhee uunniittss ddeessccrriibbeedd iinn tthhiiss mmaannuuaall uussee RR--441100AA rreeffrriiggeerraanntt wwhhiicchh ooppeerraatteess aatt hhiigghheerr pprreessssuurreess tthhaann RR--2222.. UUssee OONNLLYY RR--441100AA rraatteedd sseerrvviiccee eeqquuiippmmeenntt oorr ccoommppoonneennttss wwiitthh tthheessee uunniittss.. FFoorr ssppeecciiffiicc hhaannddlliinngg ccoonncceerrnnss wwiitthh RR--441100AA,, pplleeaassee ccoonnttaacctt yyoouurr llooccaall TTrraannee rreepprreesseennttaattiivvee..

WWAARRNNIINNGG

FFiibbeerrggllaassss WWooooll!!

EExxppoossuurree ttoo ggllaassss wwooooll ffiibbeerrss wwiitthhoouutt aallll nneecceessssaarryy PPPPEE eeqquuiippmmeenntt ccoouulldd rreessuulltt iinn ccaanncceerr,, rreessppiirraattoorryy,, sskkiinn oorr eeyyee iirrrriittaattiioonn,, wwhhiicchh ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. DDiissttuurrbbiinngg tthhee iinnssuullaattiioonn iinn tthhiiss pprroodduucctt dduurriinngg iinnssttaallllaattiioonn,, mmaaiinntteennaannccee oorr rreeppaaiirr wwiillll eexxppoossee yyoouu ttoo aaiirrbboorrnnee ppaarrttiicclleess ooff ggllaassss wwooooll ffiibbeerrss aanndd cceerraammiicc ffiibbeerrss kknnoowwnn ttoo tthhee ssttaattee ooff CCaalliiffoorrnniiaa ttoo ccaauussee ccaanncceerr tthhrroouugghh iinnhhaallaattiioonn.. YYoouu MMUUSSTT wweeaarr aallll nneecceessssaarryy PPeerrssoonnaall PPrrootteeccttiivvee EEqquuiippmmeenntt ((PPPPEE)) iinncclluuddiinngg gglloovveess,, eeyyee pprrootteeccttiioonn,, aa NNIIOOSSHH aapppprroovveedd dduusstt//mmiisstt rreessppiirraattoorr,, lloonngg sslleeeevveess aanndd ppaannttss wwhheenn wwoorrkkiinngg wwiitthh pprroodduuccttss ccoonnttaaiinniinngg ffiibbeerrggllaassss wwooooll..

PPrreeccaauuttiioonnaarryy MMeeaassuurreess::

•• AAvvooiidd bbrreeaatthhiinngg ffiibbeerrggllaassss dduusstt..

•• UUssee aa NNIIOOSSHH aapppprroovveedd dduusstt//mmiisstt rreessppiirraattoorr..

•• AAvvooiidd ccoonnttaacctt wwiitthh tthhee sskkiinn oorr eeyyeess.. WWeeaarr lloonngg--sslleeeevveedd,, lloooossee--ffiittttiinngg ccllootthhiinngg,, gglloovveess,, aanndd eeyyee pprrootteeccttiioonn..

•• WWaasshh ccllootthheess sseeppaarraatteellyy ffrroomm ootthheerr ccllootthhiinngg;; rriinnssee wwaasshheerr tthhoorroouugghhllyy..

•• OOppeerraattiioonnss ssuucchh aass ssaawwiinngg,, bblloowwiinngg,, tteeaarr-oouutt,, aanndd sspprraayyiinngg mmaayy ggeenneerraattee ffiibbeerr ccoonncceennttrraattiioonnss rreeqquuiirriinngg aaddddiittiioonnaall rreessppiirraattoorryy pprrootteeccttiioonn.. UUssee tthhee aapppprroopprriiaattee NNIIOOSSHH aapppprroovveedd rreessppiirraattoorr..

FFiirrsstt AAiidd MMeeaassuurreess::

•• EEyyee CCoonnttaacctt -- FFlluusshh eeyyeess wwiitthh wwaatteerr ttoo rreemmoovvee dduusstt.. IIff ssyymmppttoommss ppeerrssiisstt,, sseeeekk mmeeddiiccaall aatttteennttiioonn..

•• SSkkiinn CCoonnttaacctt -- WWaasshh aaffffeecctteedd aarreeaass ggeennttllyy wwiitthh ssooaapp aanndd wwaarrmm wwaatteerr aafftteerr hhaannddlliinngg..

Electrical Connection

WWAARRNNIINNGG

LLiivvee EElleeccttrriiccaall CCoommppoonneennttss!!

FFaaiilluurree ttoo ffoollllooww aallll eelleeccttrriiccaall ssaaffeettyy pprreeccaauuttiioonnss wwhheenn eexxppoosseedd ttoo lliivvee eelleeccttrriiccaall ccoommppoonneennttss ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. WWhheenn iitt iiss nneecceessssaarryy ttoo wwoorrkk wwiitthh lliivvee eelleeccttrriiccaall ccoommppoonneennttss,, hhaavvee aa qquuaalliiffiieedd lliicceennsseedd eelleeccttrriicciiaann oorr ootthheerr iinnddiivviidduuaall wwhhoo hhaass bbeeeenn pprrooppeerrllyy ttrraaiinneedd iinn hhaannddlliinngg lliivvee eelleeccttrriiccaall ccoommppoonneennttss ppeerrffoorrmm tthheessee ttaasskkss..

62

RT-SVX072A-EN

SPACE PRESSURE TRANSDUCER & SOLENOID ASSEMBLY

DUCT STATIC

TRANSDUCER ASSEMBLY

OUTSIDE AIR REFERENCE

TUBE CONNECTS HERE

RETURN AIR TRANSDUCER & SOLENOID ASSEMBLY

TRAQ TRANSDUCER

& SOLENOID ASSEMBLY

UUnniitt RReeppllaacceemmeenntt

Main Electrical Power

Lock and tag out unit main electric power and remove power supply wiring from installed disconnect/terminal block of unit. See for locations.

NNoottee:: Inspect wiring to ensure that all field-installed

wiring complies with NEC and applicable local codes.

SEHF Units with 200V or 230V Electric Heat

(Requires separate power supply to heater)

Lock and tag out unit main electric power and remove power supply wiring for the electric heat from a dedicated, field- supplied/installed disconnect to terminal block, or to an optional unit-mounted disconnect switch. See for locations.

Field-installed Control Wiring

NNoottee:: Inspect wiring to ensure that all field-installed

wiring complies with NEC and applicable local codes.

Remove the field wiring connections for the variable air volume controls as applicable.

NNoottee:: Label wiring to save time when reconnecting

wiring is necessary.

Remove ground wire from the unit.

NNoottee:: The electrical connection for 40, 60, 70 and 75 ton

is 32 inches further down the unit than older (pre-2010) style units. On full perimeter curbs, this also means the incoming electrical will be outside the curb area. The electrician should be informed of both points.

See for typical field wiring for 20-75 ton units. See

Figure 32, p. 52 for typical field power wiring for 90-130

ton units.

1. Remove and isolate gas supply from the unit gas train.

2. Ensure gas supply line piping joints are properly sealed.

3. Remove drip leg Installed in the gas piping near the unit.

4. Remove factory-supplied flue assembly installed on the unit.

5. Remove the 3/4" CPVC furnace drain stub out that was used for condensate drain.

Requirements for Hot Water Heat (SLH*)

1. Remove and isolate water piping that comes into the heating section from the base of the unit.

2. Remove the installed, 3-way modulating valve, if necessary, to remove unit.

3. Remove the valve actuator wiring.

Requirements for Steam Heat (SSH*)

1. Remove and isolate steam piping that comes into the heating section from the base of the unit.

2. Remove, 2-way modulating valve if necessary.

3. Remove the valve actuator wiring.

Space Pressure Sensor and Tubing Installation

(All units with Statitrac)

Remove field-supplied pneumatic tubing connected to the space pressure transducer located in the filter section (see Figure 33, p. 63).

Figure 33. Duct static pressure control layout

Requirements for Gas Heat

WWAARRNNIINNGG

HHaazzaarrddoouuss GGaasseess aanndd FFllaammmmaabbllee VVaappoorrss!!

FFaaiilluurree ttoo oobbsseerrvvee tthhee ffoolllloowwiinngg iinnssttrruuccttiioonnss ccoouulldd rreessuulltt iinn eexxppoossuurree ttoo hhaazzaarrddoouuss ggaasseess,, ffuueell ssuubbssttaanncceess,, oorr ssuubbssttaanncceess ffrroomm iinnccoommpplleettee ccoommbbuussttiioonn,, wwhhiicchh ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. TThhee ssttaattee ooff CCaalliiffoorrnniiaa hhaass ddeetteerrmmiinneedd tthhaatt tthheessee ssuubbssttaanncceess mmaayy ccaauussee ccaanncceerr,, bbiirrtthh ddeeffeeccttss,, oorr ootthheerr rreepprroodduuccttiivvee hhaarrmm.. IImmpprrooppeerr iinnssttaallllaattiioonn,, aaddjjuussttmmeenntt,, aalltteerraattiioonn,, sseerrvviiccee oorr uussee ooff tthhiiss pprroodduucctt ccoouulldd ccaauussee ffllaammmmaabbllee mmiixxttuurreess oorr lleeaadd ttoo eexxcceessssiivvee ccaarrbboonn mmoonnooxxiiddee.. TToo aavvooiidd hhaazzaarrddoouuss ggaasseess aanndd ffllaammmmaabbllee vvaappoorrss ffoollllooww pprrooppeerr iinnssttaallllaattiioonn aanndd sseettuupp ooff tthhiiss pprroodduucctt aanndd aallll wwaarrnniinnggss aass pprroovviiddeedd iinn tthhiiss mmaannuuaall..

RT-SVX072A-EN

63

STANDARD OR SLOPED DRAIN PAN

(1) CONDENSATE DRAIN OPENING

BOTH SIDES

UUnniitt RReeppllaacceemmeenntt

Figure 34. Duct, space, and return plenum pressure transducer

Condensate Drain Connections

Each S*HF or K unit is provided with two 1" evaporator condensate drain connections (one on each side of the unit).

Remove all 1" condensate drain connections from unit, see

Figure 35, p. 64.

Figure 35. Condensate drain locations

Remove supply and return duct work if it was directly connected to the unit.

Installation of New Units

See unit IOM and appropriate programming guide for installation operation and programming requirements. For Lifting Procedures, see “Unit Rigging and

Placement,” p. 31

Table 30. Approximate roof curb and S*HC unit

Unit Size

C20

C25

C30

C40

C50

C55

C60

C70

C75

Note: Weight shown in this table represents the maximum unit

operating weight for S*HC units with heating/cooling functions indicated and includes economizer and relief fan options. Actual unit weight is on the unit nameplate.

.

operating weights (units built prior to 1991)

Typical Unit Operating

Weight

SE,SL,

SS,

SAHC

4,600 4,950 5,250

4,700 5,050 5,300

5,500 6,050 6,200

7,500 8,200 8,500

8,350 9,100 9,200

8,500 9,200 9,350

9,600 10,300 10,400

10,500 11,200 11,300

10,700 11,400 11,500

SXHC

SB,

SFHC SAHC S*HF

Roof Curb Max

Weight

445 470

505 540

530 560

545 575

Supply and Return Duct Connections

Ensure supply and return duct connections were installed to the roof curb supply and return areas of roof curb, rather than to the unit itself.

64

Table 31. Approximate operating weights, 90 to 100

ton, “E” style cabinet (units built prior to

1991)

Unit Size/

Tons

SEHE C90

SFHE C90

SXHE C90

SEHE D11

SFHE D11

SXHE D11

Rooftop w/

o Relief

Fans

13,150 14,500

13,820 15,150

13,000 14,340

13,700 15,050 600

14,360 15,700

13,550 14,880

Rooftop

with Relief

Fans Curb

600

RT-SVX072A-EN

Figure 36. Perimeter gasket material

Perim eter Gask et

Du ct Openin g

Roof Cur b

Figure 37. Typical partial perimeter curb with pedestal illustration for 20- 75 ton standard units

UUnniitt RReeppllaacceemmeenntt

Table 32. Typical curb dimensions for 20 to 75 ton SAHF units with air-cooled condensers (R-22)

Curb Dimensions

A

B

C

D

E

F

G

H

J

K 2' 0" 2' 0" 2' 0" 2' 0"

L

RT-SVX072A-EN

SAHF-C20,C25, C30

16' 3-7/8" 19' 1-15/16" 19' 1-15/16" 19' 1-15/16"

2' 10-1/16" 7' 10-1/16" 7' 10-1/16 7' 10-1/16"

7' 10-7/16" 7' 10-7/16" 7' 10-7/16" 9' 11-15/16"

7' 0-13/16" 7' 0-13/16" 7' 0-13/16" 9' 2-5/16"

16' 3-9/16" 19' 1-5/8" 19' 1-5/8" 19' 1-5/8"

7' 0-1/2" 7' 0-1/2" 7' 0-1/2"

13' 6-15/16" 16' 2-9/16" 16' 2-9/16" 16' 2-9/16"

7' 11-15/16" 7' 11-15/16" 7' 11-15/16" 10' 1-7/16"

5' 8-13/16" 5' 8-13/16" 5' 8-13/16" 7' 10-5/16"

2' 5-5/16"

SAHF-C40

3' 6" 3' 6" 3' 6"

SAHF-C50, C55 SAHF-C60, C70, C75

9' 2"

65

UUnniitt RReeppllaacceemmeenntt

Table 32. Typical curb dimensions for 20 to 75 ton SAHF units with air-cooled condensers (R-22) (continued)

Curb Dimensions

M

N

P

Q

R

S

SAHF-C20,C25, C30

2' 11-5/16"

1' 10-5/8" 1' 10-5/8" 1' 10-5/8" 1' 10-5/8"

5' 9-1/2" 5' 9-1/2" 5' 91/2" 6' 11-7/8"

0' 5-11/16" 0' 5-11/16" 0' 5-11/16" 0' 11-3/16"

2' 3-5/16" 2' 5-15/16" 2' 5-15/16" 2' 5-15/16"

SAHF-C40

4' 0" 4' 0" 4' 0"

SAHF-C50, C55 SAHF-C60, C70, C75

Table 33. Typical curb dimensions for SEHF, SFHF, SLHF, SSHF, SXHF, 20 to 75 ton units with air-cooled condensers

(R-22)

Curb Dimensions

A

B

C

D

E

F

G

H

J

K 2' 0" 2' 0" 2' 0" 2' 0"

L

M

N

P

Q

R 0' 1 "

S

S_HF-C20,C25, C30 S_HF-C40 S_HF-C50, C55 S_HF-C60,C70, C75

18' 7-1/2" 22' 4-1/2" 22' 4-1/2" 22' 4-1/2"

2' 10-1/16" 7' 10-1/16" 7' 10-1/16" 7' 10-1/16

7' 10-7/16" 7' 10-7/16" 7' 10-7/16" 9' 11-15/16"

7' 0-13/16" 7' 0-13/16" 7' 0-13/16" 9' 2-5/16"

18' 7-3/16" 22' 4-1/8" 22' 4-1/8" 22' 4-1/8"

7' 0-1/2" 7' 0-1/2" 7' 0-1/2"

15' 10-9/16"

7' 11-15/16" 7' 11-15/16" 7' 11-15/16" 10' 1-7/16"

5' 8-13/16" 5' 8-13/16" 5' 8-13/16" 7' 10-5/16"

2' 5-5/16"

2' 11-5/16"

1' 10-5/8" 1' 10-5/8" 1' 10-5/8" 1' 10-5/8"

5' 7-3/8" 5' 7-3/8" 5' 7-3/8" 7' 8-3/4"

1' 0-7/16" 0' 11-3/16" 0' 11-3/16" 0' 11-3/16"

2' 3-5/16" 2' 5-5/16" 2' 5-5/16" 2' 5-5/16"

19' 5" 19' 5" 19' 5"

3' 6" 3' 6" 3' 6"

4' 0" 4' 0" 4' 0"

0' 2-1/4" 0' 2-1/4" 0' 2-3/8"

9' 2"

66

RT-SVX072A-EN

Figure 38. Full perimeter curb with pedestal (20 to 75 ton units built prior to 1991)

UUnniitt RReeppllaacceemmeenntt

Table 34. 20 to 75 ton roof curb dimensions, downflow (units built prior to 1991)

Model

SAHC

SEHC

SFHC 40

SLHC SSHC

SXHC

Note: The return opening of the roof curb is provided with an adjustable filler panel 6" wide. This panel allows adjustment of the return air opening in

Unit Size

20, 25,

30 40

50, 55

60 9'–2" 26'–6"

75 9'–2" 26'–6"

20, 25,

30

50, 55

60 9'–2"

75 9'–2"

order to clear roof members of all standard roof constructions with both supply and return openings. The return air opening of the curb is at a 90 degree angle as compared to the rooftop return air opening to allow this placement flexibility. The curb acts as a plenum between the ductwork and the unit return opening. A retainer clip is used to secure the adjustable filler piece to the roof curb.

W L A B C D E F T U

7'–1/2" 21'–3 3/4" 5'–8 3/4" 2'–5 5/16"

7'–1/2"

7'–1/2" 23'–7 3/8" 5'–8 3/4" 2'–5 5/16"

7'–1/2" 29'–8 1/2" 5'–8 3/4"

7'–1/2" 32'–4 1/2" 5'–8 3/4"

26'–6"

29'–1 15/

16"

29'–8 1/2" 7'–10 1/4"

5'–8 3/4"

7'–10 1/4"

3'–6"

13'–8 13/

16"

16'–4 3/8" 7 1/2" 5'–9 1/2"

16'–4 5/

16"

16'–4 3/8" 1'–1 1/16" 6'–11 7/8"

16'–0 7/

16"

19'–6 7/8" 1'–2 5/16" 5'–7 3/8"

19'–6 13/

16"

19'–6 7/8" 1'–2 5/16" 7'–8 7/8"

7 1/2" 5'–9 1/2" 2'–3 5/16"

2'–5 15/

16"

7 1/2" 5'–9 1/2"

1'–2 5/16" 5'–7 3/8" 2'–3 5/16" 15'–7/16" 16'–4 7/8"

1'–2 5/16" 5'–7 3/8"

2'–5 15/

16"

2'–5 15/

16"

2'–5 15/

16"

2'–5 15/

16"

2'–5 15/

16"

2'–5 15/

16"

2'–5 15/

16"

NA NA

18'–6 13/

16"

18'–6 13/

16"

18'–6 13/

16"

18'–6 13/

16"

20'–1 7/8" 19'–8 7/8" 20'–1 7/8" 19'–8 7/8" 20'–1 7/8" 19'–8 7/8" 20'–1 7/8" 19'–8 7/8"

RT-SVX072A-EN

67

Unit Startup

Sequence of Operation

NNOOTTIICCEE

CCoommpprreessssoorr FFaaiilluurree!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonn bbeellooww ccoouulldd rreessuulltt iinn ccoommpprreessssoorr ffaaiilluurree.. UUnniitt mmuusstt bbee ppoowweerreedd aanndd ccrraannkkccaassee hheeaatteerrss eenneerrggiizzeedd aatt lleeaasstt 88 hhoouurrss BBEEFFOORREE ccoommpprreessssoorrss aarree ssttaarrtteedd..

Stop/Off/Auto

There are a number of reasons the Symbio 800 controller will have the IntelliPak unit stopped or off. The user interface home screen displays unit mode of Stopped or Auto. Stopped is indicated when an override is preventing operation such as: Local Stop, Emergency Stop, or Equipment Stop input is active. Auto is indicated when in automatic control but is currently off in modes such as: Unoccupied, Ventilation Override, Emergency Override or the like.

When Heat Cool Mode Status is Off, unit operation will be prevented; whereas, all other modes allow operation.

Occupancy

There are many sources and types of occupancy. These have an effect on the operation of the IntelliPak unit. All sources are arbitrated (prioritized) into a final occupancy status.

Sources of Occupancy

• Occupancy Request is a communicated value from a Building Automation System (BAS) schedule.

• Occupancy Input is a local input from the space served by the equipment. These are typically optional local time clocks or occupancy sensors. This is a physical input to the Symbio controller and is field installed.

• Bypass Timer starts because of a user requested occupancy override (also known as Occupied Bypass). The occupant requests temporary occupied comfort heating or cooling during unoccupied scheduled time periods. An example of this would be the Timed Override (TOV) button on the zone sensor. See more information.

Occupancy Status Definitions

OOccccuuppiieedd OOppeerraattiioon: The IntelliPak unit is running in a Normal mode providing temperature and ventilation control to the normal occupied setpoints and comfort demands of the occupants.

UUnnooccccuuppiieedd OOppeerraattiioonn: The IntelliPak unit is typically shut down and is not providing temperature control to

“Timed Override,” p. 68for

the normal occupied setpoints. No ventilation is required or provided. Temperature control is determined by energy conservation and building protection thresholds.

OOccccuuppiieedd BByyppaassss OOppeerraattiioonn: The IntelliPak unit is temporarily in an Occupied state for some period of time and will automatically return to unoccupied operation when the bypass timer expires. The Occupied Bypass Timer is a user-adjustable field. However setting the timer to 0 minutes effectively disables Timed Override at the equipment controller.

OOccccuuppiieedd SSttaannddbbyy OOppeerraattiioonn: Standby does not apply to a discharge air controller. These units treat Standby as Occupied. Space temperature control units in an Occupied-Standby state are controlling to occupied standby temperature setpoints. Normal operation will resume when Occupancy Status goes to an Occupied state.

Timed Override

Timed Override (TOV) is a function that allows a user, located in the conditioned space, to temporarily override the IntelliPak operation from unoccupied mode to occupied mode (referred to as OccupiedBypass). To accomplish this, Trane wired or wireless zone sensor devices are equipped with “On” and “Cancel” push buttons. Some sensors refer to the buttons as “Occupied” and “Unoccupied”. Timed override operation applies, in some way, to all unit types.

On Wired sensors, the timed override request (ON) and timed override cancel (CANCEL) buttons momentary modify the zone temperature thermistor resistance to a value outside the normal zone temperature operating range. The Symbio 800 controller detects this change; however, this momentary button press does not disrupt the space temperature value being used. The press duration is 0.5 to 8 seconds.

Wireless sensors process the timed override request/ cancel signal at the sensor and communicate the appropriate timed override status (mode).

Service Pin Message Request

A secondary feature of wired zone sensors is Service Pin Message Request, not associated with TOV. An On/ Occupied push button press for 8 to 30 seconds can initiate Neuron ID and Program ID message broadcast on a LON network. This function is used to install and troubleshoot LON networks. This feature benefits installation of a LON device by initiating the service pin message from a zone sensor rather than at the equipment.

68

RT-SVX072A-EN

1700 RPM

1600 RPM

1500 RPM

90%

1400 RPM

1300 RPM

1200 RPM

1100 RPM

1000 RPM

900 RPM

800 RPM

600 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 2000 4000 6000 8000 10000 12000

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Performance Data

Supply Fan Performance

NNoottee:: Direct Drive plenum fan applications require

minimum external static values ranging from 0.3 to 0.7 in H

Figure 39. Supply fan performance with or without variable frequency drive - 20 and 25 tons air-cooled, - forward curved

O.

2

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H pressure drops from the supply fan to the space cannot exceed 4.0" H

RT-SVX072A-EN

O positive. The static

2

O.

2

69

2400 RPM

2300 RPM

2200 RPM

2100 RPM

2000 RPM

1900 RPM

1800 RPM

1700 RPM

1600 RPM

1500 RPM

1400 RPM

1300 RPM

1200 RPM

1100 RPM

1000 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

NNootteess::

• Fan performance for 20 and 25 tons rooftops is identical. Contact your local Trane

®

representative for information on oversized motors.

• Shaded areas represent selectable area. Contact your local Trane

®

representative for

more information.

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external

component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 20 ton - 9,000 Cfm, 25 ton - 11,000 Cfm.

• Minimum motor horsepower is 3 hp. Maximum motor horsepower is 20 hp. Maximum fan RPM is 1750.

static must be added to appropriate

Figure 40. Supply fan performance with variable frequency drive - 20 and 25 tons cooling only - direct drive plenum, 80% width

IImmppoorrttaanntt:: Maximum static pressure leaving the

70

rooftop is 4.0" H pressure drops from the supply fan to the space cannot exceed 4.0" H2O.

O positive. The static

2

RT-SVX072A-EN

UUnniitt SSttaarrttuupp

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane

®

representative for

more information.

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer,

optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 20 ton - 9,000 Cfm, 25 ton - 11,000 Cfm.

• Minimum motor horsepower is 3 hp. Maximum motor horsepower is 20 hp. Maximum fan RPM is 2400.

RT-SVX072A-EN

71

2400 RPM

2300 RPM

2200 RPM

2100 RPM

2000 RPM

1900 RPM

1800 RPM

1700 RPM

1600 RPM

1500 RPM

1400 RPM

1300 RPM

1200 RPM

1000 RPM

1100 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Figure 41. Supply fan performance with variable frequency drive - 20 and 25 tons cooling only - direct drive plenum, 120% width

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H2O positive. The static pressure drops from the supply fan to the space cannot exceed 4.0" H

72

O.

2

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane more information.

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 20 ton - 9,000 Cfm, 25 ton - 11,000 Cfm.

• Minimum motor horsepower is 3 hp. Maximum motor horsepower is 20 hp. Maximum fan RPM is 2400.

®

representative for

RT-SVX072A-EN

90%

900 RPM

800 RPM

700 RPM

600 RPM

500 RPM

70% 80%

1000 RPM

1100 RPM

1200 RPM

1300 RPM

1400 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 2000 4000 6000 8000 10000 12000 14000

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Figure 42. Supply fan performance with or without variable frequency drive — 30 ton air-cooled, - forward curved

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H

O positive. The static

2

pressure drops from the supply fan to the space cannot exceed 4.0" H

O.

2

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane more information.

• Supply fan performance curve includes internal resistance of rooftop. For total static

RT-SVX072A-EN

pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 30 ton - 13,500 Cfm.

• Minimum motor horsepower is 5 hp. Maximum motor horsepower is 20 hp. Maximum fan RPM is 1450.

®

representative for

73

2000 RPM

1900 RPM

1800 RPM

1700 RPM

1600 RPM

1500 RPM

1400 RPM

1300 RPM

1200 RPM

1100 RPM

1000 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Figure 43. Supply fan performance with variable frequency drive — 30 ton cooling only, 20/25 ton gas heat - direct drive plenum, 80% width

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H2O positive. The static pressure drops from the supply fan to the space cannot exceed 4.0" H

74

O.

2

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane more information.

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 30 ton - 13,500 Cfm.

• Minimum motor horsepower is 3 hp. Maximum motor horsepower is 20 hp. Maximum fan RPM is 2200.

®

representative for

RT-SVX072A-EN

2100 RPM

2000 RPM

1900 RPM

1800 RPM

1700 RPM

1600 RPM

1500 RPM

1400 RPM

1300 RPM

1200 RPM

1100 RPM

1000 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 1000 2000 3000 4000 5000 6000 7000 8000 9000 10000 11000 12000 13000 14000 15000

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Figure 44. Supply fan performance with variable frequency drive — 30 ton cooling only, 20/25 ton gas heat- direct drive plenum, 120% width

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H

O positive. The static

2

pressure drops from the supply fan to the space cannot exceed 4.0" H

RT-SVX072A-EN

O.

2

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane more information.

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 30 ton - 13,500 Cfm.

• Minimum motor horsepower is 3 hp. Maximum motor horsepower is 20 hp. Maximum fan RPM is 2,100.

®

representative for

75

90%

900 RPM

800 RPM

700 RPM

600 RPM

500 RPM

70%

80%

1000 RPM

1100 RPM

1200 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 2000 4000 6000 8000 10000 12000 14000 16000 18000 20000 22000 24000 26000

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Figure 45. Supply fan performance with or without variable frequency drive - 40, 50 and 55 tons air-cooled, - forward curved

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H

O positive. The static

2

pressure drops from the supply fan to the space cannot exceed 4.0" H

O.

2

NNootteess::

• Fan performance for 40 and 50 to 55 ton rooftops is identical. Contact your local Trane oversized motors.

76

• Shaded areas represent selectable area. Contact your local Trane more information.

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 40 ton - 18,000 Cfm and 50 ton 22,500 Cfm.

• Minimum motor horsepower is 7.5 hp. Maximum motor horsepower is 30 hp. Maximum ½ hp to 15 hp fan Rpm is 1,141 Rpm, maximum 20 hp to 30 hp fan Rpm is 1,170 Rpm.

®

representative for information on

®

representative for

RT-SVX072A-EN

2000 RPM

1900 RPM

1800 RPM

1700 RPM

1600 RPM

1500 RPM

1400 RPM

1300 RPM

1200 RPM

1100 RPM

1000 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 2000 4000 6000 8000 1 0000 12000 14000 16000 18000 20000

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Figure 46. Supply fan performance with variable frequency drive - 40 ton cooling only, 30 ton gas heat - direct drive plenum, 80% width

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H2O positive. The static pressure drops from the supply fan to the space cannot exceed 4.0" H

RT-SVX072A-EN

O.

2

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane more information.

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 40 ton - 18,000 Cfm.

• Minimum motor horsepower is 3 hp. Maximum motor horsepower is 25 hp. Maximum fan RPM is 2,000.

®

representative for

77

1900 RPM

1800 RPM

1700 RPM

1600 RPM

1500 RPM

1400 RPM

1300 RPM

1200 RPM

1100 RPM

1000 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 2000 4000 6000 8000 1 0000 12000 14000 16000 18000 20000

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Figure 47. Supply fan performance with variable frequency drive - 40 ton cooling only - direct drive plenum, 120% width

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H

O positive. The static

2

pressure drops from the supply fan to the space cannot exceed 4.0" H

78

O.

2

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane more information.

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 40 ton - 18,000 Cfm.

• Minimum motor horsepower is 3 hp. Maximum motor horsepower is 25 hp. Maximum fan RPM is 1,900.

®

representative for

RT-SVX072A-EN

1800 RPM

1700 RPM

1600 RPM

1500 RPM

1400 RPM

1300 RPM

1200 RPM

1100 RPM

1000 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 2500 5000 7500 10000 12500 15000 17500 20000 22500 25000 27500

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Figure 48. Supply fan performance with variable frequency drive - 50, 55 tons, 40 ton gas heat - direct drive plenum, 80% width

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H

O positive. The static

2

pressure drops from the supply fan to the space cannot exceed 4.0" H

RT-SVX072A-EN

O.

2

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane more information.

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 50, 55 tons - 22,500 Cfm.

• Minimum motor horsepower is 5 hp. Maximum motor horsepower is 30 hp. Maximum fan RPM is 1,800.

®

representative for

79

1800 RPM

1700 RPM

1600 RPM

1500 RPM

1400 RPM

1300 RPM

1200 RPM

1100 RPM

1000 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 2500 5000 7500 10000 12500 15000 17500 20000 22500 25000 27500

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Figure 49. Supply fan performance with variable frequency drive - 50, 55 tons, 40 ton gas heat - direct drive plenum, 100% width

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H

O positive. The static

2

pressure drops from the supply fan to the space cannot exceed 4.0" H

80

O.

2

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane more information.

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 50, 55 tons - 22,500 Cfm.

• Minimum motor horsepower is 5 hp. Maximum motor horsepower is 30 hp. Maximum fan RPM is 1,800.

®

representative for

RT-SVX072A-EN

1800 RPM

1700 RPM

1600 RPM

1500 RPM

1400 RPM

1300 RPM

1200 RPM

1100 RPM

1000 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 2500 5000 7500 10000 12500 15000 17500 20000 22500 25000 27500

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Figure 50. Supply fan performance with variable frequency drive - 50, 55 tons, 40 ton gas heat - direct drive plenum, 120% width

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H

O positive. The static

2

pressure drops from the supply fan to the space cannot exceed 4.0" H

RT-SVX072A-EN

O.

2

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane more information.

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 50, 55 tons - 22,500 Cfm.

• Minimum motor horsepower is 5 hp. Maximum motor horsepower is 30 hp. Maximum fan RPM is 1,700.

®

representative for

81

90%

900 RPM

800 RPM

700 RPM

600 RPM

500 RPM

70%

80%

1000 RPM

1100 RPM

1200 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 3000 6000 9000 12000 15000 18000 21000 24000 27000 30000

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Figure 51. Supply fan performance with or without variable frequency drive - 60, 70 and 75 tons air-cooled, - forward curved

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H2O positive. The static pressure drops from the supply fan to the space cannot exceed 4.0" H

O.

2

NNootteess::

• Fan performance for 60 and 70 to 75 tons rooftops is identical. Contact your local Trane

®

representative for information on

oversized motors.

82

• Shaded areas represent selectable area. Contact your local Trane more information.

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 60 to 75 tons - 27,000 Cfm and 50 ton - 22,500 Cfm.

• Minimum motor horsepower is 10 hp. Maximum motor horsepower is 50 hp. Maximum fan Rpm is 1,130 Rpm. 40 and 50 HP motor available as standard in 460 and 575 volt only

®

representative for

RT-SVX072A-EN

2200 RPM

2100 RPM

2000 RPM

1900 RPM

1800 RPM

1700 RPM

1600 RPM

1500 RPM

1400 RPM

1300 RPM

1200 RPM

1100 RPM

1000 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 2500 5000 7500 10000 12500 15000 17500 20000 22500 25000 27500 30000

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Figure 52. Supply fan performance with variable frequency drive - 60 ton cooling only air-cooled - direct drive plenum, 80% width

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H

O positive. The static

2

pressure drops from the supply fan to the space cannot exceed 4.0" H

RT-SVX072A-EN

O.

2

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane more information.

• 60 ton units with gas heat use the 30" DDP fans. See

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 60 ton - 27,000 Cfm.

• Minimum motor horsepower is 10 hp (2 x 5 hp motors). Maximum motor horsepower is 40 hp (2 x 20 hp motors). Maximum fan RPM is 2,200.

Figure 58, p. 89 .

®

representative for

83

2100 RPM

2000 RPM

1900 RPM

1800 RPM

1700 RPM

1600 RPM

1500 RPM

1400 RPM

1300 RPM

1200 RPM

1100 RPM

1000 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 2500 5000 7500 10000 12500 15000 17500 20000 22500 25000 27500 30000

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Figure 53. Supply fan performance with variable frequency drive - 60 ton cooling only air-cooled - direct drive plenum, 120% width

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H

O positive. The static

2

pressure drops from the supply fan to the space cannot exceed 4.0" H

84

O.

2

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane more information.

• 60 ton units with gas heat use the 30" DDP fans. See

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 60 ton - 27,000 Cfm.

• Minimum motor horsepower is 10 hp (2 x 5 hp motors). Maximum motor horsepower is 40 hp (2 x 20 hp motors). Maximum fan RPM is 2,100.

Figure 59, p. 90 .

®

representative for

RT-SVX072A-EN

2000 RPM

1900 RPM

1800 RPM

1700 RPM

1600 RPM

1500 RPM

1400 RPM

1300 RPM

1200 RPM

1100 RPM

1000 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 2500 5000 7500 10000 12500 15000 17500 20000 22500 25000 27500 30000

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Figure 54. Supply fan performance with variable frequency drive - 60 ton gas heat, and all 70 and 75 tons cooling only

- direct drive plenum, 80% width

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H2O positive. The static pressure drops from the supply fan to the space cannot exceed 4.0" H

RT-SVX072A-EN

O.

2

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane more information.

• 70-75 ton gas heat units use 30" DDP fans. See

Figure 58, p. 89.

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 60 ton gas heat and 70, 75 tons 27,000 Cfm.

• Minimum motor horsepower is 10 hp (2 x 5 hp motors). Maximum motor horsepower is 50 hp (2 x 25 hp motors). Maximum fan RPM is 2,000.

®

representative for

85

1900 RPM

1800 RPM

1700 RPM

1600 RPM

1500 RPM

1400 RPM

1300 RPM

1200 RPM

1100 RPM

1000 RPM

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

6.0

6.5

7.0

7.5

8.0

0 2500 5000 7500 10000 12500 15000 17500 20000 22500 25000 27500 30000

Sta!c Pressure, Inches w.c.

Airﬂow, CFM

UUnniitt SSttaarrttuupp

Figure 55. Supply fan performance with variable frequency drive - 60 ton gas heat, and all 70 and 75 tons cooling only- direct drive plenum, 120% width

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H

O positive. The static

2

pressure drops from the supply fan to the space cannot exceed 4.0" H

86

O.

2

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane more information.

• 70-75 ton gas heat units use 30" DDP fans.

Figure 58, p. 89.

See

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 60 ton gas heat and 70, 75 tons 27,000 Cfm.

• Minimum motor horsepower is 10 hp (2 x 5 hp motors). Maximum motor horsepower is 50 hp (2 x 25 hp motors). Maximum fan RPM is 1,900.

®

representative for

RT-SVX072A-EN

UUnniitt SSttaarrttuupp

Figure 56. Supply fan performance with variable frequency drive - 60, 70, and 75 tons gas heat, direct drive plenum, 80% width

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H

O positive. The static

2

pressure drops from the supply fan to the space cannot exceed 4.0" H

RT-SVX072A-EN

O.

2

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane

®

representative for

more information.

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 60, 70, and 75 tons gas heat - 27,000 Cfm.

• Minimum motor horsepower is 10 hp (2 x 5 hp motors). Maximum motor horsepower is 40 hp (2 x 20 hp motors). Maximum fan RPM is 1,700.

87

UUnniitt SSttaarrttuupp

Figure 57. Supply fan performance with variable frequency drive - 60, 70, and 75 tons gas heat, direct drive plenum, 100% width

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H

O positive. The static

2

pressure drops from the supply fan to the space cannot exceed 4.0" H

88

O.

2

NNootteess::

• Shaded areas represent selectable area. Contact your local Trane

®

representative for

more information.

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 60, 70, and 75 tons gas heat - 27,000 Cfm.

• Minimum motor horsepower is 10 hp (2 x 5 hp motors). Maximum motor horsepower is 30 hp (2 x 15 hp motors). Maximum fan RPM is 1,500.

RT-SVX072A-EN

Figure 58. Supply fan performance with or without variable frequency drive - 90 ton air-cooled

UUnniitt SSttaarrttuupp

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H2O positive. The static pressure drops from the supply fan to the space cannot exceed 4.0" H

O.

2

NNootteess::

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 90 ton - 46,000 Cfm.

• Minimum motor horsepower is 30 hp.

RT-SVX072A-EN

89

UUnniitt SSttaarrttuupp

Figure 59. Supply fan performance with or without variable frequency drive - 105, 115, 130 ton air-cooled

IImmppoorrttaanntt:: Maximum static pressure leaving the

rooftop is 4.0" H2O positive. The static pressure drops from the supply fan to the space cannot exceed 4.0" H

O.

2

NNootteess::

• Supply fan performance curve includes internal resistance of rooftop. For total static pressure determination, system external static must be added to appropriate component static pressure drops (evaporator coil, filters, optional economizer, optional relief fan, optional heating system, optional cooling only extended casing, optional roof curb).

• Maximum Cfm (for cULus approval) as follows: 105, 115, 130 ton - 46,000 Cfm.

• Minimum motor horsepower is 30 hp.

90

RT-SVX072A-EN

Pressure Drop Tables

Figure 60. Wet airside pressure drop at 0.075 lb/cu.ft. 20 to 75 ton evaporator coil

UUnniitt SSttaarrttuupp

Figure 61. Dry airside pressure drop at 0.075 lb/cu.ft. 20 to 75 ton evaporator coil

RT-SVX072A-EN

91

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

2.0

9

0

H

i

g

h

1

5

,

1

3

0

T

1

0

5

T

9

0

T

S

T

D

6

0

,

7

0

,

7

5

T

5

0

T

4

0

T

3

0

T

2

0

-

2

5

T

Evaporator Wet Airside Pressure Drop at 0.075 lb/cu.ft. 20-130 Ton

Airside Pressure Drop, Inches H

2

0

Unit Airflow, CFM

4000 6000 800010000 20000 40000 60000

UUnniitt SSttaarrttuupp

Figure 62. Wet airside pressure drop at 0.075 lb/cu.ft. 90 to 130 ton evaporator coil

92

RT-SVX072A-EN

Figure 63. Dry airside pressure drop at 0.075 lb/cu.ft. 90 to 130 ton evaporator coil

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

2.0

9

0

H

i

g

h

1

5

,

1

3

0

T

1

05

T

9

0

T

S

T

D

6

0

,

7

0

,

7

5

T

5

0

T

4

0

T

3

0

T

2

0

-2

5

T

Evaporator Dry Airside Pressure Drop at 0.075 lb/cu.ft. 20-130 Ton

Airside Pressure Drop, Inches H

2

0

Unit Airflow, CFM

4000 6000 800010000 20000 40000 60000

UUnniitt SSttaarrttuupp

RT-SVX072A-EN

93

UUnniitt SSttaarrttuupp

Component Static Pressure Drops

H

HGR-

w/

lief

out

Econ

Re-

w/ or

Std

Roof

Cart

Final

&

Pre

Cart

Bag

& Pre

Filters

Wire

Perm

0.87 0.27 0.22 0.14

N/A

High

Throwaway

Std

High

Low

High

Low

All

High

kW

0.02 0.05 0.06 0.02 0.06 0.03 0.03 0.01 0.30 0.24 0.22 0.01 0.03 0.01

N/A

0.03 0.07 0.09 0.04 0.09 0.05 0.05 0.02 0.40 0.34 0.25 0.01 0.03 0.01

N/A

0.07 0.09 0.11 0.05 0.11 0.04 0.04 0.02 0.37 0.31 0.25 0.01 0.03 0.02

n/a

0.83 0.36 0.35 0.43 0.25 0.44 0.14 0.14 0.07 1.02 1.04 0.83 0.14 0.13 0.11

0.11 0.13 0.16 0.07 0.15 0.04 0.04 0.01 0.37 0.30 0.25 0.03 0.05 0.03

N/A

Table 35. Component static pressure drops (in. W.G.), 20 to 75 tons air-cooled

94

Nom

2024

2529

3036

50-

4048

5559

6073

70-

89

7580-

0.29 0.55 0.77 0.32 0.31 0.39 0.22 0.41 0.13 0.13 0.06 0.95 0.95 0.74 0.12 0.11 0.10

N/A

0.33

N/A

0.09

Low

N/A

High

SFH_ - FC SFH_ - DDP SHE_ SLH_ SSH_

Low

0.04

N/A

0.13

N/A

Wet

Evap Coil Heating System

Dry

Std

CFM

4000 0.12 0.16 0.02

6000 0.24 0.29 0.05 0.05 0.21 0.22 0.04 0.09 0.12 0.05 0.12 0.06 0.06 0.02 0.50 0.44 0.30 0.02 0.06 0.02

8000 0.37 0.44 0.09 0.09 0.37 0.39 0.07 0.15 0.19 0.10 0.20 0.09 0.09 0.03 0.71 0.68 0.45 0.05 0.12 0.04

9000 0.45 0.52 0.12 0.12 0.48 0.50 0.09 0.19 0.24 0.12 0.22 0.11 0.11 0.04 0.83 0.81 0.55 0.07 0.15 0.05

5000 0.18 0.22 0.03

6000 0.24 0.29 0.05 0.05 0.21 0.22 0.04 0.10 0.12 0.06 0.13 0.07 0.07 0.02 0.50 0.44 0.30 0.02 0.05 0.02

7500 0.34 0.41 0.08 0.08 0.31 0.35 0.06 0.14 0.17 0.09 0.18 0.09 0.09 0.03 0.66 0.62 0.41 0.04 0.10 0.03

6000 0.17 0.24 0.05 0.05 0.08 0.13 0.04 0.09 0.12 0.05 0.12 0.04 0.04 0.01 0.34 0.26 0.24 0.02 0.06 0.02

9000 0.33 0.45 0.11 0.12 0.17 0.29 0.09 0.19 0.24 0.12 0.22 0.07 0.07 0.02 0.54 0.48 0.36 0.07 0.15 0.04

10000 0.53 0.62 0.14 0.15 0.58 0.61 0.11 0.23 0.28 0.15 0.29 0.13 0.13 0.05 0.95 0.95 0.66 0.10 0.19 0.06

11000 0.62 0.71 0.17 0.18 0.71 0.74 0.13 0.29 0.33 0.19 0.35 0.15 0.15 0.06 1.06 1.11 0.79 0.12 0.23 0.07

12000 0.53 0.67 0.20 0.21 0.30 0.51 0.16 0.31 0.39 0.22 0.41 0.11 0.11 0.04 0.75 0.75 0.58 0.16 0.27 0.07

14000 0.68 0.83 0.26 0.29 0.39 0.69 0.22 0.40 0.51 0.30 0.50 0.14 0.14 0.06 0.95 0.95 0.76 0.25 0.39 0.09

8000 0.19 0.26 0.09

10000 0.27 0.36 0.14 0.11 0.20 0.37 0.11 0.13 0.16 0.08 0.16 0.06 0.06 0.02 0.49 0.43 0.32 0.02 0.03 0.03

12000 0.36 0.48 0.20 0.15 0.28 0.47 0.16 0.17 0.22 0.11 0.21 0.08 0.08 0.03 0.61 0.56 0.41 0.04 0.07 0.05

16000 0.57 0.73 0.34 0.26 0.49 0.70 0.29 0.28 0.36 0.20 0.36 0.12 0.12 0.05 0.88 0.87 0.66 0.10 0.09 0.08

17000 0.62 0.79

18000 0.68 0.86

10000 0.20 0.25 0.12 0.10 0.20

14000 0.34 0.42 0.26 0.20 0.38 0.17 0.22 0.22 0.28 0.15 0.28 0.07 0.07 0.03 0.56 0.50 0.37 0.07 0.08 0.05

17000 0.46 0.57 0.39 0.29 0.55 0.26 0.32 0.31 0.40 0.22 0.41 0.10 0.10 0.04 0.72 0.68 0.50 0.12 0.11 0.08

20000 0.59 0.73 0.58 0.41 0.75 0.38 0.44 0.42 0.52 0.30 0.51 0.12 0.12 0.05 0.88 0.88 0.66 0.19 0.17 0.11

23000 0.74 0.89 0.69 0.54 0.99 0.53 0.58 0.47 0.67 0.41 0.69 0.15 0.15 0.07 1.05

12000 0.27 0.37 0.10 0.08 0.28 0.14 0.06 0.10 0.13 0.06 0.11 0.05 0.05 0.01 0.44 0.37 0.27 0.02 0.07 0.03

16000 0.43 0.58 0.18 0.14 0.44 0.28 0.11 0.17 0.21 0.11 0.19 0.07 0.07 0.02 0.63 0.58 0.39 0.05 0.10 0.06

20000 0.62 0.80 0.27 0.21 0.63 0.46 0.17 0.24 0.31 0.16 0.27 0.10 0.10 0.03 0.84 0.82 0.56 0.10 0.16 0.09

24000 0.83 1.03 0.40 0.30 0.86 0.68 0.24 0.33 0.42 0.22 0.39 0.11 0.11 0.04 1.06 1.08 0.78 0.16 0.23 0.13

27000 1.00 1.22 0.46 0.32 1.05 0.88 0.30 0.41 0.52 0.30 0.47 0.16 0.16 0.06 1.18 1.24 0.98 0.27 0.28 0.16

16000 0.44 0.58 0.18 0.14 0.44 0.28 0.11 0.17 0.21 0.11 0.19 0.07 0.07 0.02 0.63 0.58 0.39 0.05 0.10 0.06

20000 0.62 0.82 0.27 0.21 0.63 0.46 0.17 0.24 0.31 0.16 0.27 0.10 0.10 0.03 0.84 0.82 0.56 0.10 0.16 0.09

22000 0.73 0.94 0.33 0.25 0.74 0.56 0.20 0.29 0.37 0.19 0.33 0.12 0.12 0.04 0.95 0.95 0.66 0.13 0.20 0.11

24000 0.84 1.07 0.40 0.30 0.86 0.68 0.24 0.33 0.42 0.22 0.39 0.14 0.14 0.04 1.06 1.08 0.78 0.16 0.23 0.13

26000 0.95 1.20 0.47 0.32 0.98 0.81 0.28 0.39 0.49 0.27 0.45 0.16 0.16 0.05 1.17 1.23 0.91 0.23 0.26 0.15

RT-SVX072A-EN

UUnniitt SSttaarrttuupp

H

HGR-

w/

lief

out

Econ

Filters

Re-

w/ or

Std

Roof

Cart

Final

&

Pre

Cart

Bag

& Pre

Wire

Perm

High

Throwaway

Std

High

Low

High

Low

All

kW

High

Low

High

SFH_ - FC SFH_ - DDP SHE_ SLH_ SSH_

Low

Wet

Evap Coil Heating System

Dry

Table 35. Component static pressure drops (in. W.G.), 20 to 75 tons air-cooled (continued)

RT-SVX072A-EN

6. No additional pressure loss for model SXH_.

1. Static pressure drops of accessory components must be added to external static pressure to enter fan selection tables.

2. Gas heat section maximum temperature rise of 60° F.

Std

CFM

27000 1.01 1.26 0.51 0.33 1.05 0.88 0.30 0.42 0.52 0.30 0.48 0.17 0.17 0.06 1.12 1.26 0.98 0.27 0.28 0.16

3. Throwaway filter option limited to 300 ft/min face velocity.

Notes:

7. For final filters w/ prefilters (digit 13 = M, N, P, Q) also add pressure drop for throwaway filter.

4. Bag filter option limited to 740 ft/min face velocity.

5. Horizontal roof curbs assume 0.50" static pressure drop or double the standard roof curb pressure drop, whichever is greater.

95

UUnniitt SSttaarrttuupp

Econ

w/ or

Relief

w/out

Std

Roof

0.20

N/A

0.31

N/A

0.64

0.54

0.44

0.32

0.22

0.64

0.54

0.44

0.32

0.22

0.63

0.52

0.41

N/A

0.84 0.84 1.07

N/A

2.14

0.82 0.80 1.00

1.19 1.06 1.86

1.02 1.04 1.43

N/A

N/A N/A N/A

N/A

0.13

N/A

Cart

Final

Pre

Cart &

Pre

0.68 0.65 0.77

Bag &

Filters

N/A

Wire

Perm

High

Throwaway

Std

0.96 0.96 1.28

N/A

0.16

N/A

1.09 1.12 1.59

N/A

0.19

N/A

1.22 1.30 1.95

N/A

0.22

N/A

2.24

N/A N/A N/A

0.24

N/A

0.82 0.80 1.00

N/A

0.13

N/A

0.96 0.96 1.28

N/A

0.16

N/A

2.24

1.22 1.30 1.95

1.09 1.12 1.59

N/A N/A N/A

N/A

0.24

0.22

0.19

N/A

High

Low

High

Low

All kW

High Cap

Table 36. Component static pressure drops (in. W.G.), 90 to 130 tons air-cooled

96

0.55 0.34 0.65 0.75 0.61 0.79

0.45 0.30 0.57 0.66 0.53 0.71

0.42 0.26 0.49 0.57 0.44 0.60

0.36 0.21 0.41 0.48 0.36 0.50

0.28 0.17 0.33 0.39 0.29 0.40

0.55 0.34 0.65 0.75 0.61 0.79

0.45 0.30 0.57 0.66 0.53 0.71

0.42 0.26 0.49 0.57 0.44 0.60

0.36 0.21 0.41 0.48 0.36 0.50

0.28 0.17 0.33 0.39 0.29 0.40

0.52 0.32 0.63 0.73 0.58 0.76 0.24 0.24

0.46 0.29 0.56 0.65 0.50 0.68 0.21 0.22

0.39 0.23 0.45 0.52 0.40 0.55 0.17 0.19

0.31 0.16 0.35 0.41 0.30 0.43 0.14 0.16

0.25 0.13 0.26 0.31 0.22 0.32 0.11 0.13

High

SFHL SEHL SLHL SSHL

N/A

Low

Wet

Evap Heating System

Dry

0.63 0.83

0.77 1.01

0.92 1.20

1.08 1.40

1.21 1.56

N/A N/A N/A

Wet

Evap Coil

Dry

32000 0.53 0.70 0.80 1.03

27000 0.40 0.53 0.60 0.80

Nom CFM Std

37000 0.67 0.88 1.01 1.32

90

42000 0.83 1.08 1.25 1.62

45000 0.93 1.20 1.40 1.80

N/A N/A

31000

N/A N/A

39000

35000

105

N/A N/A

46000

43000

31000 0.76 1.00

35000 0.92 1.21

39000 1.10 1.44

115/

43000 1.30 1.68

130

46000 1.45 1.86

1. Static pressure drops of accessory components must be added to external static pressure to enter fan selection tables.

Notes:

6. No additional pressure loss for model SXHL.

2. Gas heat section maximum temperature rise of 60° F.

3. Throwaway filter option limited to 300 ft/min face velocity.

7. For final filters w/ prefilters (digit 13 = M, N, P, Q) also add pressure drop for throwaway filter.

4. Bag filter option limited to 740 ft/min face velocity.

5. Horizontal roof curbs assume 0.50" static pressure drop or double the standard roof curb pressure drop, whichever is greater.

RT-SVX072A-EN

Table 37. Component static pressure drops (in. W.G.)—relief damper for return fan

UUnniitt SSttaarrttuupp

Nom Tons

20

25

30

40

Cfm

4000 0.08 6000 0.19 14000 0.56 8000 0.35 17000 0.75

9000 0.44 20000 1.15 10000 0.55 24000 1.66 12000 0.79 28000 2.26

5000 0.13

6000 0.19 16000 0.56

7500 0.30 20000 0.88 10000 0.55 24000 1.27 11000 0.67 28000 1.73 12500 0.85 30000 1.99 14000 1.08

6000 0.19 16000 0.56

9000 0.44 20000 0.88 12000 0.79 22000 1.05 14000 1.08 24000 1.27 15000 1.20 26000 1.47 17000 1.60 28000 1.73

8000 0.18 31000 10000 0.28 33000 12000 0.41 16000 0.73 17000 0.82 20000 1.15 22000 1.39

Relief Damper for Return Fan

Nom

Tons

50-55,

60,

70-75,

Cfm

10000 0.28

12000 0.31

Relief Damper

for Return Fan

N/A N/A

Fan Drive Selections

Relief Fan Performance

Table 38. Modulating 100% relief fan performance — 20 to 75 tons

CFM

Nom

Std

Tons

Air

4000 379 0.34 515 0.70 622 1.12 712 1.59 791 2.10 861 2.64 6000 421 0.61 541 1.03 643 1.52 732 2.07 811 2.66

20

8000 487 1.10 583 1.56 674 2.11 757 2.72

10000 567 1.88 643 2.37 719 2.96

4000 379 0.34 515 0.70 622 1.12 712 1.59 791 2.10 861 2.64 927 3.22 988 3.84 6000 421 0.61 541 1.03 643 1.52 732 2.07 811 2.66 882 3.28 948 3.94 1010 4.64

25

8000 487 1.10 583 1.56 674 2.11 757 2.72 834 3.38 904 4.09 970 4.82 10000 567 1.88 643 2.37 719 2.96 794 3.63 864 4.35 12000 651 2.98 716 3.56 779 4.18 843 4.88

4000 379 0.34 515 0.70 622 1.12 712 1.59 791 2.10 861 2.64 927 3.22 988 3.84

6000 421 0.61 541 1.03 643 1.52 732 2.07 811 2.66 882 3.28 948 3.94 1010 4.64

8000 487 1.10 583 1.56 674 2.11 757 2.72 834 3.38 904 4.09 970 4.82 1030 5.59

30

10000 567 1.88 643 2.37 719 2.96 794 3.63 864 4.35 931 5.11 993 5.91 1053 6.77 12000 651 2.98 716 3.56 779 4.18 843 4.88 905 5.64 967 6.47 1026 7.34 14000 736 4.47 796 5.17 850 5.83 904 6.57 960 7.38

7500 318 0.67 444 1.21 545 1.85 629 2.54 702 3.27 767 4.02 828 4.83 884 5.66

9000 331 0.97 444 1.47 543 2.17 628 2.94 702 3.75 770 4.60 831 5.48 887 6.37

40

12000 381 2.13 460 2.40 546 3.04 627 3.89 701 4.83 769 5.82 831 6.87 889 7.93 14000 422 3.40 486 3.49 557 3.98 631 4.76 701 5.72 768 6.78 830 7.90 888 9.07 16000 468 5.12 520 5.07 579 5.37 643 6.01 707 6.88 769 7.92 829 9.08 887 10.32

9000 331 0.97 444 1.47 543 2.17 628 2.94 702 3.75 770 4.60 831 5.48 887 6.37 12000 381 2.13 460 2.40 546 3.04 627 3.89 701 4.83 769 5.82 831 6.87 889 7.93

50-55

15000 445 4.20 502 4.21 567 4.61 636 5.32 704 6.26 769 7.32 830 8.47 888 9.67 18000 516 7.41 559 7.19 609 7.32 662 7.76 719 8.49 776 9.44 833 10.56 887 11.79 20000 566 10.31 602 9.91 644 9.88 690 10.15 739 10.69 789 11.48 841 12.48 893 13.68

0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Negative Static Pressure

RT-SVX072A-EN

97

UUnniitt SSttaarrttuupp

Table 38. Modulating 100% relief fan performance — 20 to 75 tons (continued)

CFM

Nom

Std

Tons

Air

12000 351 1.49 423 2.09 502 3.00 572 4.02 634 5.07 690 6.09 740 7.04 784 7.91 15000 412 2.68 460 3.15 521 3.96 585 5.02 646 6.24 702 7.53 749 8.83 801 10.14 18000 478 4.41 516 4.88 557 5.54 607 6.49 662 7.66 715 9.01 766 10.48 814 12.01

60,

70, 75

21000 549 6.75 578 7.36 612 7.92 647 8.71 688 9.77 735 11.03 781 12.46 827 14.03 24000 617 9.83 644 10.59 672 11.22 702 11.88 732 12.77 766 13.89 805 15.22 846 16.72 27000 688 15.11 711 15.09 736 15.45 761 16.18 788 17.02 815 17.92 844 18.99 876 20.31

Notes:

1. Shaded areas indicate non-standard drive selections. These drive selections must be manually factory selected.

2. Refer to General Data Table for minimum and maximum HP.

0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Table 39. Air-cooled modulating 100% relief fan performance — 90 to 130 tons

CFM

Nom

Std

Tons

Air

28000 495 12.81 519 13.30 547 13.93 582 15.27 619 17.14 30000 527 15.67 550 16.22 573 16.71 604 17.84 637 19.53 32000 559 18.92 581 19.53 602 20.03 628 20.90 658 22.39

90-

34000 591 22.60 612 23.28 632 23.84 653 24.48 681 25.74

130

36000 623 26.73 643 27.47 662 28.09 680 28.62 705 29.66 38000 656 31.34 675 32.14 693 32.83 710 33.42 730 34.17 40000 688 36.46 707 37.31 724 38.07 741 38.73 757 39.29

CFM

Nom

Std

Tons

Air

28000 655 18.85 689 20.51 721 22.51 750 24.43 777 26.28 30000 672 21.63 705 23.38 737 25.16 768 27.31 795 29.37 32000 690 24.39 723 26.63 753 28.44 784 30.37 811 32.54

90-

34000 710 27.55 739 29.75 771 32.16 799 34.04 828 36.04

130

36000 732 31.25 759 33.29 788 35.76 817 38.26 844 40.23 38000 755 35.51 780 37.38 806 39.60 834 42.26 861 44.90 40000 779 40.45 804 42.09 827 44.14 853 46.63 879 49.41

Notes:

1. Shaded areas indicate non-standard drive selections. These drive selections must be manually factory selected.

2. Refer to General Data Table for minimum and maximum HP.

0.25 0.50 0.75 1.00 1.25

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

1.50 1.75 2.00 2.25 2.50

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Negative Static Pressure

Table 40. 100% Relief fan drive selections — 20 to 75 tons

3 Hp 5 Hp 7.5 Hp 10 Hp 15 Hp 20 Hp

RPM

500 5 600 6

20

25

30

40

50–55

98

700 7 800 8 900 9 500 5 700 7 600 6 800 8 700 7 900 9 800 8 1000 A 900 9 500 5 700 7 800 8 600 6 800 8 900 9 700 7 900 9 1000 A 800 8 1000 A 1100 B 900 9

Drive

No.

RPM

400 4 600 6 700 7 500 5 700 7 800 8 600 6 800 8 700 7 800 8 400 4 600 6 700 7 700 7 500 5 700 7 800 8 800 8 600 6 800 8 900 9 700 7 800 8

Drive

No.

RPM

Drive

No.

RPM

Drive

No.

RPM

Drive

No.

RT-SVX072A-EN

RPM

Drive

No.

Table 40. 100% Relief fan drive selections — 20 to 75 tons (continued)

3 Hp 5 Hp 7.5 Hp 10 Hp 15 Hp 20 Hp

RPM

60 400 4 600 6 600 6 700 7 800 8 70 500 5 700 7 700 7 800 8 75 600 6

Drive

No.

RPM

Drive

No.

RPM

Drive

No.

Table 41. 100% Relief fan drive selections — 90 to 130 tons

Nom Tons

90-130

15 HP 20 HP 25 HP 30 HP 40 HP

RPM

500 5 500.00 5 600.00 6 600.00 6 700.00 7 600 6 600.00 6 700.00 7 700.00 7 800.00 8

Drive

No.

RPM

700 7 800 8 800 8

Drive

No.

RPM

Drive

No.

RPM

Table 42. 50% Relief fan performance — 90 to 130 tons

CFM

Nom

Std

Tons

Air

12000 432 4.09 461 4.31 502 4.86 545 5.67 585 6.35 14000 495 6.40 519 6.65 547 6.96 582 7.64 619 8.57

90-

16000 559 9.46 581 9.77 602 10.02 628 10.45 658 11.20

130

18000 623 13.36 643 13.73 662 14.05 680 14.31 705 14.83 20000 688 18.23 707 18.66 724 19.03 741 19.36 757 19.65

CFM

Nom

Std

Tons

Air

12000 622 7.19 655 7.99 686 8.78 717 9.57 748 10.48 14000 655 9.42 689 10.26 721 11.26 750 12.21 777 13.14

90-

16000 690 12.19 723 13.32 753 14.22 784 15.18 811 16.27

130

18000 732 15.63 759 16.65 788 17.88 817 19.13 844 20.12 20000 779 20.22 804 21.04 827 22.07 853 23.31 879 24.70

Notes:

1. Shaded areas indicate non-standard drive selections. These drive selections must be manually factory selected.

2. Refer to General Data Table for minimum and maximum HP.

0.25 0.50 0.75 1.00 1.25

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

1.50 1.75 2.00 2.25 2.50

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Negative Static Pressure

Drive

No.

RPM

Drive

No.

Drive

No.

RPM

UUnniitt SSttaarrttuupp

Drive

No.

RPM

Drive

No.

Table 43. 50% Relief fan drive selections, 90 to 130 tons

Nom Tons

90-130

RT-SVX072A-EN

RPM Drive No.

15 Hp

500 5 600 6 700 7 800 8 900 9

99

UUnniitt SSttaarrttuupp

Return Fan Performance

Table 44. Return fan performance—20, 25, 30 ton air-cooled and (24.5" Fan)

CFM

Std

Air

4000 557 0.29 638 0.48 710 0.68 776 0.89 838 1.10 899 1.32 969 1.60 1038 1.89 4500 605 0.36 682 0.57 749 0.79 811 1.02 869 1.25 926 1.49 980 1.73 1033 1.99 5000 654 0.44 727 0.67 790 0.91 850 1.16 905 1.41 957 1.67 1007 1.93 1057 2.20 5500 704 0.53 773 0.79 834 1.04 889 1.30 943 1.58 992 1.86 1040 2.15 1087 2.44 6000 756 0.64 821 0.92 879 1.20 932 1.47 982 1.77 1030 2.06 1076 2.38 1121 2.70 6500 808 0.76 868 1.06 925 1.36 976 1.66 1024 1.97 1070 2.29 1114 2.61 1157 2.95 7000 861 0.90 917 1.21 972 1.55 1021 1.87 1067 2.19 1112 2.53 1154 2.87 1195 3.22 7500 913 1.06 968 1.39 1019 1.74 1068 2.10 1112 2.44 1155 2.79 1196 3.15 1235 3.51 8000 967 1.24 1019 1.58 1068 1.96 1115 2.34 1158 2.71 1199 3.08 1238 3.45 1277 3.84 8500 1021 1.44 1071 1.80 1116 2.19 1162 2.60 1204 3.00 1244 3.39 1283 3.79 1320 4.19 9000 1075 1.67 1123 2.04 1166 2.45 1210 2.88 1252 3.30 1290 3.72 1327 4.14 1363 4.56

9500 1130 1.92 1175 2.31 1217 2.73 1258 3.17 1299 3.62 1337 4.07 1373 4.52 1408 4.96 10000 1186 2.20 1228 2.60 1269 3.04 1307 3.50 1347 3.97 1384 4.45 1419 4.91 1454 5.38 10500 1241 2.50 1280 2.92 1321 3.37 1357 3.85 1395 4.34 1432 4.85 1466 5.33 1500 5.84 11000 1297 2.84 1334 3.27 1373 3.74 1409 4.23 1443 4.74 1480 5.26 1515 5.79 1546 6.29 11500 1353 3.20 1387 3.64 1425 4.13 1460 4.64 1493 5.16 1528 5.71 1561 6.25 1594 6.79 12000 1408 3.60 1441 4.06 1477 4.56 1512 5.08 1544 5.62 1576 6.18 1610 6.75 1642 7.32 12500 1464 4.03 1496 4.50 1530 5.01 1565 5.56 1596 6.11 1626 6.68 1658 7.28 1689 7.87 13000 1520 4.49 1551 4.98 1583 5.51 1617 6.06 1648 6.64 1677 7.22 1707 7.84 1737 8.44 13500 1576 4.99 1606 5.50 1636 6.03 1669 6.60 1700 7.20 1728 7.80 1756 8.42 1785 9.06 14000 1633 5.52 1661 6.05 1690 6.60 1721 7.19 1752 7.79 1780 8.42 1807 9.05 1834 9.70

Notes:

1. Max fan RPM 1715 for 24.5" Class I Fan

2. Max motors available are as follows: 20/24T: 3HP, 25/29T; 5HP, 30/36T: 7.5 HP

3. Max CFM available is as follows; 20/24T: 9000, 25/29T: 11000, & 30/36T: 13500

4. Min CFM is 4000 for 20/24T, 25/29T, & 30/36T

5. Return fan belt drive RPM selections will be available to cover 500-1600 RPM range +/- 50 RPM

6. Performance data includes cabinet and rain hood effect. Damper pressure drop must be added to the return duct static. See table Component static

7. Shaded area indicates nonstandard BHP or RPM selections. Contact a local Trane® representative for more information.

0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

pressure drops - relief damper for return fan in Performance Data.

Return Fan Static Pressure Including Relief Damper P.D.

Table 45. Return fan performance—40, 50 and 55 ton air-cooled and (27" Fan)

CFM

Std

Air

7500 709 0.82 766 1.16 815 1.50 861 1.85 906 2.22 949 2.60 991 2.99 1033 3.39

8000 748 0.95 803 1.31 851 1.67 895 2.04 938 2.43 979 2.82 1018 3.22 1058 3.64

8500 788 1.09 840 1.47 887 1.86 930 2.24 971 2.64 1010 3.05 1049 3.48 1087 3.92

9000 827 1.24 878 1.64 924 2.05 965 2.46 1005 2.88 1043 3.31 1080 3.75 1115 4.19

9500 867 1.41 916 1.83 961 2.27 1001 2.70 1040 3.14 1076 3.58 1112 4.03 1146 4.50 10000 908 1.60 955 2.04 999 2.50 1038 2.95 1075 3.41 1111 3.88 1145 4.34 1179 4.83 10500 948 1.81 994 2.27 1036 2.75 1075 3.23 1111 3.70 1145 4.18 1179 4.68 1212 5.18 11000 989 2.04 1033 2.51 1074 3.01 1112 3.51 1147 4.01 1181 4.51 1213 5.02 1245 5.53 11500 1030 2.28 1072 2.78 1112 3.29 1149 3.82 1184 4.33 1216 4.86 1248 5.38 1279 5.92 12000 1071 2.55 1112 3.06 1151 3.59 1187 4.14 1221 4.69 1253 5.24 1284 5.78 1314 6.33 12500 1112 2.83 1152 3.37 1189 3.92 1225 4.48 1258 5.06 1290 5.62 1320 6.19 1349 6.76 13000 1153 3.14 1192 3.70 1228 4.27 1263 4.86 1296 5.45 1327 6.04 1356 6.63 1385 7.23 13500 1194 3.47 1232 4.05 1267 4.63 1301 5.24 1333 5.85 1364 6.47 1393 7.08 1421 7.70 14000 1236 3.83 1272 4.42 1307 5.03 1340 5.66 1371 6.29 1401 6.94 1430 7.57 1457 8.20 14500 1277 4.21 1313 4.82 1346 5.45 1379 6.10 1410 6.75 1439 7.42 1467 8.08 1494 8.73 15000 1319 4.62 1353 5.25 1386 5.90 1417 6.55 1448 7.23 1477 7.92 1504 8.61 1531 9.29 15500 1361 5.05 1394 5.71 1426 6.37 1457 7.05 1486 7.74 1514 8.44 1542 9.16 1569 9.87 16000 1402 5.51 1435 6.18 1466 6.87 1496 7.57 1525 8.28 1553 9.01 1580 9.74 1606 10.47 16500 1444 6.00 1476 6.69 1506 7.40 1535 8.12 1564 8.85 1591 9.58 1617 10.34 1643 11.10 17000 1486 6.52 1517 7.23 1547 7.96 1575 8.70 1603 9.44 1629 10.20 1655 10.97 1681 11.75 17500 1528 7.07 1558 7.80 1587 8.55 1615 9.30 1642 10.07 1668 10.85 1694 11.64 1718 12.43 18000 1570 7.65 1599 8.40 1627 9.17 1655 9.94 1681 10.73 1707 11.53 1732 12.33 1757 13.15 18500 1612 8.26 1640 9.03 1668 9.81 1695 10.62 1721 11.43 1746 12.23 1771 13.07 1794 13.89 19000 1654 8.91 1682 9.70 1709 10.50 1735 11.31 1760 12.14 1785 12.97 1809 13.82 1833 14.67 19500 1696 9.59 1723 10.40 1749 11.22 1775 12.06 1800 12.90 1825 13.76 1848 14.62 1872 15.50

0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

Return Fan Static Pressure Including Relief Damper P.D.

100

RT-SVX072A-EN

Trane IntelliPak 1 Installation And Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual