ICP PAB036N1HA, PAB036N1LA, PAB036N1SA, PAB048N1HC, PAB048N1LC Installation Guide

...

Installation

Instructions

Contents

1. Unit Dimensions ................... 2

1. Safety Labeling And Signal Words .. 3

2. Safe Installation Requirements ..... 3

3. Locating the Unit .................. 4

4. Electrical Wiring ................... 7

5. Air Distribution System ............. 9

6. Economizer Accessory ........... 10

7. Start-up Procedures .............. 11

8. Operation ....................... 13

9. Maintenance ..................... 14

80-30-04

10. Rigging Instructions ............ 16

I DIRECTDRIVEBLOWER

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SINGLEPACKAGEAIRCONDITIONERS

Printed in U.S.A.

ELECTRICHEAT(OPTIONAL)

513 01 1005 00 10/23/01

I Installation Instructions Single Package Air Conditioners I

1. Unit Dimensions

UNIT DIMENSIONS

ALL MODELS

D_M INCHES MILL METERS

A 36" 9/4 B 47 3/8 'r / 203 C 73" /854

D 4 58" / 17 E 15" 381 F 12" 307 G /8 3_4" 476

H /8 3_4" 476

J E2" 305

J /02 K N/A

L 4 I '4" / 08 M 5P4" E33

N 12 1'4" 3/ / P E9" 483 Q 15" 381

R 19" 483 S /2 //4" 3/1

• /6 78" 429

I I

Note: Above dimensions are ininches

ROOF CURB

ALL MODELS

DiM

B C D

E F

_÷

INCHES 67 34" 64 34"

23"

23" 2 //2" 42 3_4" 39 34"

23"

/2"

12"

/4"

MILLIMETERS

/721 1645

1086

/010

* Roof curbs are also available in 8" (203mm) and 24" (610mm) heights (K dimension).

LOW VOLTAGE

1/2" CONDU_T

584 584

584 305

305 356

ELECTRIC HEAT POWER 1", 1-1/2", 2" CONDUIT

UNIT ELECTRICAL POWER

3/4", 1", 1-1/4" CONDUIT

,,÷j

UNIT BASE SHOWN SEPARATELY

TO ILLUSTRATE BOTTOM

DUCT OPENINGS

80 10 14

I Single PackageAir Conditioners

1. Safety Labeling And Signal Words

Installation Instructions

DANGER, WARNING AND CAUTION

The signal words DANGER, WARNING and CAUTION are

used to identify levels of hazard seriousness. The signal

word DANGER is only used on product labels to signify an

immediate hazard. The signal words WARNING and CAU-

TION will be used on product labels and throughout this

manual and other manuals that may apply to the product.

SIGNAL WORDS

DANGER - Immediate hazards which WILL result in se-

vere personal injury or death.

WARNING - Hazards or unsafe practices which COULD

result in severe personal injury or death.

2. Safe Installation Requirements

CAUTION - Hazards or unsafe practices which COULD result in minor personal injury or product or property dam- age.

Signal Words in Manuals

The signal word WARNING is used throughout this manual in the following manner:

The signal word CAUTION is used throughout this manual in the following manner:

CAUTION

Installation or repairs made by unqualified per-

sons can result in hazards to you and others.

Installation MUST conform with local building codes or, in the absence of local codes, with the

National Electrical Code NFPA70-1990 or current edition or in Canada CSA C22.1 - Canadian Elec-

trical Code Part 1 or current edition.

The information contained in this manual is in- tended for use by a qualified service technician

familiar with safety procedures and equipped with the proper tools and test instruments.

Failure to carefully read and follow all instruc-

tions in this manual can result in unit malfunction,

property damage, personal injury and/or death.

• Seal supply and return air ducts.

• Check to see that filters are installed correctly and are the proper type and size.

NOTE: It is the personal responsibility and obligation of the

customer to contact a qualified installer to ensure that the installation is adequate and conforms to governing codes

and ordinances.

131

I Installation Instructions Single Package Air Conditioners I

3. Locating the Unit

The unit is designed for outdoor installation only. The unit

may be installed on a concrete slab (or other adequate plat- form) at ground level, or on a rooftop with an adequate plat- form or a roof curb. Typical installations are shown in

NO TAG through NO TAG.

FIGURE 1 [ Minimum Clearances

CAUTION

Do NOT operate unit in a corrosive atmosphere con-

taining chlorine, fluorine, or any other corrosive chem-

icals.

Minimum Clearances to Combustible

Construction

Supply and Return Air Ducts ...................... 0"

Duct Connection Side (no economizer)

........... 2" (50mm) on 61/3 ton models

Duct Connection Side (with economizer) . 48" (1220mm)

Condenser Access Panel Side .......... 30" (762mm)

Blower Access Panel Side .............. 30" (762mm)

Electrical Access Panel Side ............ 30" (762mm)

Clearance between 3 Ft. Overhang

and Top of Unit ............ 30" (762mm)

Combustible Base

(Wood or Class A, B or C

roof covering material) ................. 0"

Clearances

The location MUST allow for minimum clearances and should not be adjacent to a patio or other area where the

unit's operating sound level might be objectionable. Local codes MUST be observed.

Minimum clearances, as specified belowand in FIGURE 1,

MUST be maintained from adjacent structures to provide adequate air circulation and room for service personnel.

While minimum clearances are acceptable for safety rea- sons, they may not allow adequate air circulation around the unit for proper operation in the cooling mode. Whenev-

er possible, it is desirable to allow additional clearance, es-

pecially around the condenser inlet and discharge openings.

Do NOT install the unit in a location that will permit dis- charged air from the condenser to recirculate to the con- denser inlet.

Access Panels

CAUTION

Unit will NOT operate properly without all access pan-

els in place.

See FIGURE 2 below for a general view of unit and location of access panels.

FIGURE 2 I Access Panels

[

Compressor Access

Panel __

Blower _-eess Panel

Electrical Access

Panel

4L_!J

I Single PackageAir Conditioners

Installation Instructions

Installation

CAUTION

Unit will NOT operate properly unless it is installed lev-

el front to rear and side to side.

The slope MUST NOT be greater than 1/8" per foot

(10mm per meter). For side to side leveling, the control

box side MUST always be lower.

Ground Level Installation

Ground level platform requirements:

The unit MUST be situated to provide safe access for servicing.

Platform may be made of either concrete or pressure treated wood and MUST be level and strong enough to support unit weight.

Position platform separate from building foundation.

Install in well-drained area, with top surface of plat- form above grade level.

Platform MUST be high enough to allow for proper condensate trap installation and drainage. See

FIGURE 4 and associated text for more information about condensate drainage.

Rooftop Installation

Rooftop platform requirements:

The unit MUST be situated to provide safe access for servicing.

The existing roof structure MUST be adequate to support the weight of the unit or the roof MUST be re-

inforced.

Check the weight of the unit in relation to the roof

structure and local building codes or ordinances and

reinforce roof structure if necessary. See FIGURE 11 on the back cover of this manual for unit weights and corner weights.

Support for the unit MUST be level and strong enough to carry unit weight. The support may consist of a platform or a combination of platform and roof

beams or curb.

The platform may be constructed of pressure treated wood and may be covered with Class A, B or C roof covering.

Platform MUST allow for proper condensate trap

installation and drainage. See FIGURE4 and associated text for more information about conden-

sate drainage.

See Hoisting section below for hoisting instructions.

Hoisting

NOTE: All access panels MUST besecured in place before

hoisting.

The unit should be hoisted with two lifting slings. Attach the slings to rigging shackles that have been hooked through

holes in the base rail.

NOTE: Cardboard covers on horizontal supply and re-

turn duct openings MUST be removed before starting

unit.

Two spreader bars MUST be placed on top of the unit to protect the unit from damage from the pressure exerted by

the slings. Make sure that all equipment is adequate to handle the weight of the unit and that the slings will not al-

low the unit to shift.

Refer to FIGURE 11 on the back cover of this manual for

illustrated rigging instructions and weight chart.

ISl

_ Installation Instructions Single Package Air Conditioners I

Downflow Conversion

These units are shipped ready for horizontal operation but are adaptable to downflow use. To convert to downflow

use, follow these steps:

1. Remove the blockoff plates found in the return air compartment and the supply air compartment (see

FIGURE 3.

NOTE: Blockoff plate in the supply air compartment only

contains one screw. If reinstalling plate, back part of plate

MUST fit into mating dimples on flange. To reinstall, slant plate into dimples, then put plate into position and fasten

with screw.

2. Install the removed plates on the horizontal return and supply air openings.

NOTE: It is the installer's personal responsibility to follow

all local codes and ordinances and instructions contained

herein, as well as instructions included with accessory items when installing unit. It is the installer's personal re-

sponsibility to locate directions for installation of this unit and any or all accessories. Manufacturer is NOT responsi-

ble for improper installation practices.

Condensate Drain

The condensate drain outlet is a 3/4" (19.1mm) threaded female PVC connection located at the bottom of the unit to

the left ofthe electrical access panel (see FIGURE 4). Con- densate drain outlet MUST be held with wrench when

installing trap and drain line.

The circulating blower and the condenser fan create a neg- ative pressure on the condensate drain line that will pre- vent the condensate from draining properly without a trap.

To combat this negative pressure, a field supplied conden- sate trap that will allow a standing column of water of at least 2" (50.8mm) MUST be installed. Top of outlet from trap MUST be at least 1" (25.4mm) below top of outlet from unit. Install the trap as near to the unit as possible for

proper drainage.

A 3/4" (19.1 mm) drain line MUST be installed if required by local codes or if location of unit requires it. Run the drain

line to an open drain or other suitable disposal point.

3. Install unit on the appropriate roof curb.

Blockoff Plate

FIGURE 3 (Return Air Compartment)

FIGURE 4 I Condensate Drain Information*

Access Panel

80-30-27

* Condensate trap MUST be installed.

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