Johnson Controls VB30, VB24, VB36, VM09, VM12 Installation, Operation And Maintenance Manual

INDOOR PACKAGED EQUIPMENT

Installation, Operation, and Maintenance Supersedes: 145.18-IOM1 (115) Form 145.18-IOM1 (818)

HIGH EFFICIENCY VSCS SERIES

VERTICAL STACKED WATER SOURCE HEAT PUMP

LD27626

CABINET MODEL VB/VM/VS09–36

AND

CHASSIS MODEL VSCS09–36

R-410A

ISSUE DATE:

August 30, 2018

FORM 145.18-IOM1

ISSUE DATE: 8/30/2018

IMPORTANT!

READ BEFORE PROCEEDING!

GENERAL SAFETY GUIDELINES

This equipment is a relatively complicated apparatus.
During rigging, installation, operation, maintenance,
or service, individuals may be exposed to certain com­ponents or conditions including, but not limited to:
heavy objects, refrigerants, materials under pressure,
rotating components, and both high and low voltage.
Each of these items has the potential, if misused or
handled improperly, to cause bodily injury or death. It
is the obligation and responsibility of rigging, instal­lation, and operating/service personnel to identify and
recognize these inherent hazards, protect themselves,
and proceed safely in completing their tasks. Failure
to comply with any of these requirements could result
in serious damage to the equipment and the property in

which it is situated, as well as severe personal injury or
death to themselves and others at the site.

This document is intended for use by owner-authorized
rigging, installation, and operating/service personnel. It
is expected that these individuals possess independent
training that will enable them to perform their assigned
tasks properly and safely. It is essential that, prior to
performing any task on this equipment, this individual
shall have read and understood the on-product labels,
this document and any referenced materials. This in­dividual shall also be familiar with and comply with
all applicable industry and governmental standards and
regulations pertaining to the task in question.

SAFETY SYMBOLS

The following symbols are used in this document to alert the reader to specific situations:

Indicates a possible hazardous situation
which will result in death or serious injury
if proper care is not taken.

Identies a hazard which could lead to

damage to the machine, damage to other
equipment and/or environmental pollu­tion if proper care is not taken or instruc­tions and are not followed.

Indicates a potentially hazardous situa­tion which will result in possible injuries
or damage to equipment if proper care is
not taken.

External wiring, unless specied as an optional connection in the manufacturer’s product line, is not

to be connected inside the control cabinet. Devices such as relays, switches, transducers and controls
and any external wiring must not be installed inside the micro panel. All wiring must be in accor-

dance with the manufacturer's published specications and must be performed only by a qualied

electrician. The manufacturer will NOT be responsible for damage/problems resulting from improper
connections to the controls or application of improper control signals. Failure to follow this warn-

ing will void the manufacturer’s warranty and cause serious damage to property or personal injury.

WARNING: This product can expose you to chemicals including formaldehyde, which is known
to the state of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.

2

Highlights additional information useful
to the technician in completing the work
being performed properly.

FORM 145.18-IOM1
ISSUE DATE: 8/30/2018

CHANGEABILITY OF THIS DOCUMENT

In complying with the manufacturer's’ policy for con­tinuous product improvement, the information con­tained in this document is subject to change without
notice. There is no commitment to update or provide

lifting, and operating/service personnel should verify
whether the equipment has been modified and if current
literature is available from the owner of the equipment

prior to performing any work on the equipment.
current information automatically to the manual or
product owner. Updated manuals, if applicable, can be

CHANGE BARS

obtained by contacting the nearest service office.

Revisions made to this document are indicated with a
It is the responsibility of rigging, lifting, and operating/
service personnel to verify the applicability of these
documents to the equipment. If there is any question
regarding the applicability of these documents, rigging,

line along the left or right hand column in the area the

revision was made. These revisions are to technical in-

formation and any other changes in spelling, grammar

or formatting are not included.

ASSOCIATED LITERATURE

MANUAL DESCRIPTION FORM NUMBER

Vertical Stacked Heat Pump Start-Up and Performance Checklist 145.18-CL1

Vertical Stacked Water Source Heat Pump Heating and Cooling Data Record Sheet 145.18-CL2

3

FORM 145.18-IOM1

ISSUE DATE: 8/30/2018

CABINET NOMENCLATURE

1, 2 3, 4 5 6 7 8 9 10 11, 12 13 14 15

VB 12 M 1 D E A 2 2T 4 0 C

PRODUCT CATEGORY

VB = Vertical Stacked Heat Pump -

Standard Cabinet Assembly

VM = Vertical Stacked Heat Pump -

Master Cabinet Assembly

VS = Vertical Stacked Heat Pump -

Satellite Cabinet Assembly

UNIT CAPACITY

09 = 0.75 TON 24 = 2 TON

12 = 1 TON 30 = 2.5 TON

15 = 1.25 TON 36 = 3 TON

18 = 1.5 TON

CONTROL OPTIONS

M = Microprocessor (MP) Control with 2-Speed

Unit Mounted Switch

2 = MP Control with 2-Speed Thermostat Control

3 = MP Control with 3-Speed Thermostat Control

P = MP Control with Surface-Mount Thermostat

Connection with Unit Mounted Switch

4 = MP Control with Surface-Mount Thermostat

Connection with 2-Speed Thermostat Control

5 = MP Control with Surface-Mount Thermostat

Connection with 3-Speed Thermostat Control
(ECM Only)

VOLTAGE

1 = 208/230-60-1

6 = 265-60-1

ELECTRICAL CONNECTION

0 = None (Terminal Block)

D = Non-Fused Disconnect

F = Disconnect with Fuses

BLOWER OPTIONS

A = PSC Blower

B = Hi-Static PSC Blower

E = ECM Blower

F = Hi-Static ECM Blower

G = ECM with Continuous Low Speed

H = Hi-Static ECM with Continuous Low Speed

DESIGN SERIES

C = Current Generation

MISCELLANEOUS OPTIONS

0 = None

S = Stainless Steel (SST) Drain Pan

F = MERV 8 Filters

C = SST Drain Pan with MERV 8 Filters

HORIZONTAL DISCHARGE OPENING
ORIENTATION

00, 0T 1H, 1T 2H, 2T 3H, 3T

X = None B = Back 1 = Left + Front 7 = Front + Left + Right

F = Front 2 = Left + Back 8 = Front + Right + Back

L = Left 3 = Left + Right 9 = Front + Left + Back

R = Right 4 = Right + Back

5 = Right + Front

6 = Back + Front

SUPPLY AIR CONFIGURATION

1H = Single Horizontal Supply 2T = Double Horizontal Supply

2H = Double Horizontal Supply

3H = Triple Horizontal Supply 3T = Triple Horizontal Supply

0T = Top Only

1T = Single Horizontal Supply

+ Top

+ Top

+ Top

00 = Field Cut (No Openings)

RISER ARRANGEMENT

1 = Right Hand Risers

2 = Left Hand Risers

3 = Back Risers

4 = Right Hand Risers with Cover

5 = Left Hand Risers with Cover

6 = Back Risers with Cover

CABINET OPTIONS

Cabinet Height

88 inches A G L R W

80 inches B H M T X

80 inches with 4-inch Stand D K P V Z

80 inches with 8-inch Stand F 2 4 6 8

No OA

Options

Left Top OA Entry

(4-inch Round)

4

Left Top OA Entry (4-inch

Round with Motorized Damper)

Right Top OA Entry

(4-inch Round)

Right Top OA Entry (4-inch

Round with Motorized Damper)

FORM 145.18-IOM1
ISSUE DATE: 8/30/2018

1, 2, 3, 4 5, 6 7 8 9 10 11 12 13

VSCS 12 C 1 0 0 A C 0

PRODUCT CATEGORY

VSCS = Vertical Stacked Heat Pump Chassis

R-410A

UNIT CAPACITY

09 = 0.75 TON

12 = 1 TON

15 = 1.25 TON

18 = 1.5 TON

24 = 2 TON

30 = 2.5 TON

36 = 3 TON

CHASSIS NOMENCLATURE

MISCELLANEOUS OPTIONS

O = None

WATERSIDE OPTIONS

C = Standard Water Coil

B = Standard Water Coil with Low Temperature

Option

N = Cupro-Nickel Water Coil

R = Cupro-Nickel Water Coil with Low Temperature

Option

AIRSIDE OPTIONS

A = Standard Airside Coil

C = Corrosion Protective Coating

DESIGN SERIES

C = Current Generation

VOLTAGE

1 = 208/230-60-1

6 = 265-60-1

WATER VALVE & PUMP OPTIONS

VALVE OPTIONS

No Water Control Valve

Motorized 2-Way Shut-Off Valve

Motorized 3-Way Shut-Off Valve

VALVE

ONLY

Y-STRAINER

O S

M Y

N V

AUTO-FLOW REGULATOR

0 = No Flow Control Valve

B = 1.5 USGPM

C = 2.0 USGPM

D = 2.5 USGPM

E = 3.0 USGPM

F = 3.50 USGPM

H = 4.0 USGPM

J = 4.5 USGPM

K = 5.0 USGPM

L = 6.0 USGPM

M = 7.0 USGPM

N = 8.0 USGPM

P = 9.0 USGPM

R = 10.0 USGPM

5

FORM 145.18-IOM1

ISSUE DATE: 8/30/2018

TABLE OF CONTENTS

SECTION 1 - INSTALLATION ..................................................................................................................................9

Notice and Disclaimer ......................................................................................................................................9

Disclaimer ................................................................................................................................................9

Pre-Installation .................................................................................................................................................9

Literature .................................................................................................................................................9

Shipping ..................................................................................................................................................9

Inspection and Storage .........................................................................................................................10

Preparations for Installing the Unit ........................................................................................................10

Rigging .................................................................................................................................................. 11

Cabinet Riser Installation ............................................................................................................................... 11

Placing the Cabinet ............................................................................................................................... 11

Riser Loop ...................................................................................................................................................... 16

Hoses .............................................................................................................................................................16

Electrical Wiring .............................................................................................................................................. 18

Field-Installed Power Wiring ..................................................................................................................18

Field-Installed Low Voltage Wiring ........................................................................................................18

Optional Surface Mount Thermostat Connection Wiring ....................................................................... 19

Optional Remote Mounted Thermostat Wiring ...................................................................................... 19

Optional ADA Door Mounted Thermostat .............................................................................................. 20

EC Motor (ECM) Continuous Fan .........................................................................................................20

Closet and Drywall Installation .......................................................................................................................20

Acoustic Return Air (RA) Panel ......................................................................................................................20

Supply Air (SA) Ductwork ............................................................................................................................... 24

Horizontal Supply Air ............................................................................................................................. 24

Top Discharge Supply Air ......................................................................................................................24

Top Mounted Fresh Air Intake ........................................................................................................................27

Top Mounted Fresh Air Intake with Motorized Damper .........................................................................27

System Flushing and Cleaning ...................................................................................................................... 28

Flushing the System .............................................................................................................................. 28

Cleaning the System .............................................................................................................................29

Chassis Installation ........................................................................................................................................32

For Units with NPSH Valve Connection and Hose Sets ........................................................................ 32

For Units with NPT Style (Tapered Pipe Thread) Valve Connection and Hoses ...................................32

SECTION 2 - OPERATION .....................................................................................................................................35

Pre-Start-Up Checklist .................................................................................................................................... 35

Initial Unit Start-Up .........................................................................................................................................35

System Loop Temperature .............................................................................................................................36

Fan Speed Adjustment ................................................................................................................................... 36

Unit Controls ................................................................................................................................................... 40

Sequence of Operation .........................................................................................................................40

Continuous Blower ................................................................................................................................40

Safety Control Reset .............................................................................................................................40

Operation Errors .................................................................................................................................... 41

Safety Controls ...................................................................................................................................... 41

Random Start ........................................................................................................................................42

Compressor Protection ..........................................................................................................................42

Microprocessor Control Unit Flash Codes .............................................................................................42

Communication ....................................................................................................................................42

6

FORM 145.18-IOM1
ISSUE DATE: 8/30/2018

TABLE OF CONTENTS (CONT'D)

SECTION 3 - MAINTENANCE ................................................................................................................................ 43

APPENDIX ..............................................................................................................................................................45

Heating and Cooling Data Record Sheet .......................................................................................................49

R-410A Quick Reference Guide ..................................................................................................................... 51

LIST OF FIGURES

FIGURE 1 - Ideal Riser Insertion Depth ..................................................................................................................12

FIGURE 2 - Correct/Incorrect Stub-Out Positions in Cabinet Riser Opening ..........................................................12

FIGURE 3 - Cabinet Unit Dimensions & Floor Sleeve Dimensions .........................................................................14

FIGURE 4 - Cabinet Riser Dimensions ...................................................................................................................15

FIGURE 5 - Standard Factory Supplied NPSH Hose Kits and Risers.....................................................................17

FIGURE 6 - Optional Field Supplied Risers with Factory Supplied NPSH Hose Kits and Shut-Off Valves .............17

FIGURE 7 - Conversion of NPT to NPSH Type Fittings (VB Units with NPT Fittings Only) ....................................18

FIGURE 8 - Field Wiring Diagram ...........................................................................................................................19

FIGURE 9 - Remote Thermostat Wiring ..................................................................................................................19

FIGURE 10 - Unit Switch Plate with ADA Thermostat Connection .......................................................................... 20

FIGURE 11 - Critical Return Air (RA) Panel with Unit Cabinet Installation Dimensions ..........................................21

FIGURE 12 - RA Panel Cross Section Installation at Floor Level ...........................................................................22

FIGURE 13 - RA Panel Dimensions ........................................................................................................................22

FIGURE 14 - Optional RA Panel with ADA Mounted Thermostat ............................................................................23

FIGURE 15 - Supply Grille with Volume Damper and 1/8-inch Neoprene Tape Applied to Perimeter ....................24

FIGURE 16 - Unit Mounted Supply Grille Installation ..............................................................................................25

FIGURE 17 - Damper Plate Fasteners ....................................................................................................................27

FIGURE 18 - Remove the Red Cover .....................................................................................................................27

FIGURE 19 - Position Black Cover..........................................................................................................................28

FIGURE 20 - System Flushing and Cleaning ..........................................................................................................29

FIGURE 21 - Fresh Air Opening without Motorized Damper – Left and Right Hand Unit Shown ...........................30

FIGURE 22 - Fresh Air Opening with Motorized Damper – Left and Right Hand Unit Shown ................................31

FIGURE 23 - Lift the Chassis Front .........................................................................................................................33

FIGURE 24 - Tilt the Chassis ..................................................................................................................................33

FIGURE 25 - Insert the Chassis ..............................................................................................................................33

FIGURE 26 - Pivot the Chassis ...............................................................................................................................34

FIGURE 27 - Slide the Chassis ...............................................................................................................................34

FIGURE 28 - Check the Chassis .............................................................................................................................34

FIGURE 29 - PSC Motor Wiring Diagram ...............................................................................................................45

FIGURE 30 - ECM Wiring Diagram .........................................................................................................................46

FIGURE 31 - Continuous Fan with ECM Wiring Diagram .......................................................................................47

FIGURE 32 - Motorized Damper ECM Wiring Diagram ..........................................................................................48

7

FORM 145.18-IOM1

ISSUE DATE: 8/30/2018

LIST OF TABLES

TABLE 1 - High Series Physical Data .....................................................................................................................13

TABLE 2 - Replacement Hose Gaskets ..................................................................................................................16

TABLE 3 - Chassis Hoses .......................................................................................................................................16

TABLE 4 - Typical Wire Connections ......................................................................................................................19

TABLE 5 - Unit Supply Opening Sizes ....................................................................................................................26

TABLE 6 - Unit Supply Face Velocity (FPM) ...........................................................................................................26

TABLE 7 - Operating Limits ....................................................................................................................................36

TABLE 8 - PSC Standard Blower Performance (CFM) ...........................................................................................37

TABLE 9 - PSC High Static Blower Performance (CFM) ........................................................................................37

TABLE 10 - ECM Standard Blower Performance (CFM) ........................................................................................38

TABLE 11 - ECM High Static Blower Performance (CFM) ......................................................................................38

TABLE 12 - ECM Blower Performance - All Speed Taps (CFM) ............................................................................. 39

TABLE 13 - Flash Codes ........................................................................................................................................42

8

FORM 145.18-IOM1
ISSUE DATE: 8/30/2018

SECTION 1 - INSTALLATION

After installing the unit, show the user
how to turn off the electricity to the unit.
Point out control and switch locations for
turning off the electricity.

Ensure the user understands the impor­tance of following all safety precautions.

NOTICE AND DISCLAIMER

This unit contains refrigerant installed by the factory
that is approved for use in the unit’s intended country
of installation or market. Distributors are only autho­rized to provide refrigerants that have been approved
for use in the countries or markets they serve.

The refrigerant used in this unit is identified on the
unit's nameplate and in this manual. Any additions of
refrigerant into this unit must comply with the coun­try’s requirements with regard to refrigerant use and
should be obtained from manufacturer approved dis­tributors. Use of unapproved refrigerant substitutes
will void all warranties and can cause injury or death.

1

Modifications may invalidate product certifications or
violate country standards. Any person or entity making
changes to the product is responsible for obtaining the
required engineering review and approval, as well as
covering certification and other related costs.

Unauthorized customer modifications to certified
products are prohibited for the following reasons:

A. Modications may create hazards that could result

in death, serious injury, or equipment damage.

B. Modications will void product warranties.

C. Modications may invalidate product certica-

tions and may violate country standards. Country

standards may require that only certied products
be used in certain applications, and modications
that result in the loss of product certication may

violate those standards.

PRE-INSTALLATION

Literature

Disclaimer

Customer modifications to certified products are pro­hibited. If performed without the express written ap­proval of the manufacturer, modifications will void
all warranties (expressed or implied) and may result
in hazardous situations resulting in equipment damage,
serious physical injury or property damage, or death.

The manufacturer has certified the product as being
compliant with applicable government and/or industry
standards. Product certification is designated either on
the product itself or in the product literature. The cer­tification mark identifies the applicable standards as
well as the Nationally Recognized Test Lab (NRTL) or
other testing facility that conducted the testing, where
applicable.

If changes are made to the product, an engineering re­view is required to assess the impact to the product cer­tification. In some instances, the changes may require
that the NRTL or testing facility review and re-approve
the product by means of a field or site inspection and
certification.

Review this Installation, Operation, and Maintenance
(IOM) manual prior to installation. After installing the
unit, give this IOM to the end user. If help is needed
with any of the installation instructions or matters re­lating to the unit, contact the sales office where you
bought the unit. You may also refer to the unit rating
plate for a contact name.

Shipping

Cabinets and risers ship in one of the following con­figurations:

• Cabinets are stacked on their side with risers at­tached. Chassis ship on separate skids.

• Risers ship loose, packaged in boxes and sorted

by oor. Cabinets ship upright up to four per skid.

Chassis ship on separate skids.

• Risers ship loose, packaged in boxes, and sorted
by oor. Cabinets ship upright on skids with chas­sis inside the cabinet. Chassis electrical and water
connections are not installed. The chassis is se­cured to the service panel. Remove the screws be­fore removing the service panel and chassis.

The cabinet must remain standing upright. Do not
place cabinets on their side with the chassis inside.

9

SECTION 1 - INSTALLATION

FORM 145.18-IOM1

ISSUE DATE: 8/30/2018

Inspection and Storage

Store cabinets, chassis, and risers the same way they
were shipped. Ensure the storage area is dry and pro­tected from the environment. Keep the units in their
upright position. If the risers are stored at the job site,
ensure the pipe ends are capped to prevent foreign ob­ject debris and contamination.

In areas where construction is not complete (including
dry wall, plaster, paint, and where any emission of dust
particulates or fumes from outgassing are present), all
precautions must be taken to protect the cabinet, open­ings, and chassis from contamination or physical damage.

Upon delivery, perform the following inspections:

1. Inspect the unit for shipment damage. Notify the
Transportation Company of any damage and note
the damage on the shipping receipt.

Rough handling may dislocate and dam­age internal components.

• Remove the inner service panel and manually
check the blower wheel for free rotation.

• Match the refrigeration chassis to the proper cabi­nets by referring to the cabinet and chassis name­plate and label information.

• Remove the chassis refrigeration access panel
(top cover) and inspect the unit. Ensure that the
refrigerant tubing is free from obvious physical
damage and kinks, and check that piping does not
touch other unit components.

• Ensure the compressor is mounted on neoprene
isolators with metal spacing sleeves inside. Se­cured it with nuts that are snug against the metal
spacer sleeves.

• Inspect all electrical connections. Connections
must be clean and tight at the terminals.

Do NOT use the risers to lift the cabinet
assembly.

2. Inspect the riser projections at each end of the
cabinet for misalignment or end damage that
would prevent making an acceptable connection.

3. Inspect the thermostats and other accessories that
have been shipped separately for quantity and
transit damage.

Store the refrigeration chassis in the normal upright
orientation to maintain oil in the compressor sump.

Preparations for Installing the Unit

Before installing the unit, perform the following prep­arations:

• Verify the model number on the unit nameplate
with the ordering and shipping information to en­sure the correct unit has been shipped.

• Carefully inspect each unit before delivery to the
installation site. All cabinets may not be equipped
with the same size riser or the same air supply
grille arrangement. In most cases, each cabinet is

individually tagged for a specic location in the

building.

Do NOT install this unit outdoors.

A compressor/unit comprises a pressur­ized system. Never loosen threaded joints
while the system is under pressure, and
never open pressurized system parts.

Before servicing, open and tag all discon­nect switches.

Do NOT install units in a flammable
environment due to the danger of an
explosion.

• Keep the cabinet sealed with the shipping materi­als until all plastering, painting, and construction
work is complete.

10

FORM 145.18-IOM1
ISSUE DATE: 8/30/2018

SECTION 1 - INSTALLATION

Safety guards, shields, barriers, cov­ers, and protective devices must not be
removed while the compressor/unit is
operating.

All safety features, disengagement, and
interlocks must be in place and function
correctly before the equipment is put into
operation. Never bypass or wire around
any safety device.

Use gloves and protective goggles where
appropriate and have a gas mask close at
hand. Use electrical protection equipment
and tools suited for electrical operations.

Personnel must be qualied according

to national safety rules and regulations.

CABINET RISER INSTALLATION

Do NOT use the risers to lift or move the
cabinets.

Refer to Figure 3 on page 14, which shows the
correct location of the cabinet in relation to the floor
sleeve and risers.

Risers are not designed to support or lift any part of the
cabinet. Do not use them to lift a cabinet. Risers are at­tached using nylon ties to allow for slight adjustments
during installation, and expansion of riser column dur­ing operation. Take care during installation to avoid
damage to risers and riser stub-outs.

Improper handling and installation of
risers could damage riser stub-outs and
valves and could result in property dam­age, death, or serious injury.

1

Only manufacturer- qualied personnel

should install this system. If not, it may
cause water leakage, electric shock, or

re.

Rigging

Follow all applicable regulations and
safety practices during rigging and lifting.

Prepare and follow written rigging and lifting plan.
Lifting must be directed by trained, professional rigger.

Spreader bars must be used and be long enough to pre­vent rigging from contacting unit. Use only the desig­nated lift points according to unit's IOM, and use ALL
lift points.

Locate the center of gravity through trial lifts to ac­count for possible variations in unit configuration. Use
rigging and lifting techniques that keep the unit stable
and level. Keep clear of unit when lifted.

Do not allow the risers to bottom out. Riser
stub-out should be centrally located with
the stub-out opening of the cabinet riser.
Do not allow riser stub-outs or risers to
contact cabinet sheet metal.

Do not drag risers on the oor while mov­ing the cabinet.

When the risers are shipped loose, riser installation can
be completed before cabinet installation. When install­ing risers, ensure the riser stub-outs are centered in the
the cabinet openings. Ensure that the risers cannot bot­tom out in swage (see Figure 1 on page 12).

When risers are shipped attached to cabinets, complete
the installation of risers and cabinet at the same time.
Detaching the riser from the cabinet is unnecessary.

Placing the Cabinet

The correct location of the cabinet in relation to the
floor sleeve and risers is shown in Figure 3 on page

14. To place the cabinet correctly, perform the fol­lowing steps:

11

SECTION 1 - INSTALLATION

FORM 145.18-IOM1

ISSUE DATE: 8/30/2018

1. Place the cabinet in a horizontal position on the
oor adjacent to its installation location (when ris­ers are attached to cabinet).

The units are designed to accommodate a maxi­mum supply and return riser stub-out movement
of 1-1/2 inches due to expansion and contraction
(total movement of 3 inches). If the total calcu­lated riser expansion or contraction exceeds 1-1/2
inches, the field must provide expansion compen­sation.

2. Install eld or factory-provided riser extensions,
if required, to the unit-mounted risers prior to

moving the cabinet into nal position.

3. Raise the cabinet upright. Lower the risers through

the oor cutout, aligning the risers into the swaged
section of the unit on the oor below.

Take extra care not to scrape or dent ris­ers during positioning. The riser tailpiece
should insert approximately 2 inches into
the 3-inch long swaged section of the unit
below.

7. Center the risers’ horizontal stub-outs (complete
with factory-installed shut-off valves) in the cabi­net slot openings. Ensure that the stub-outs are
perpendicular to the side/back panel.

8. Verify all risers are vertical and that they penetrate
the swaged joint at least 1 inch.

Factory provided risers come with a 3-inch deep
swage. Do not allow risers to completely bottom
out at 3 inches in the swage. The 3-inch swage
depth is oversized to allow for adjustments if nec­essary to keep riser stub-outs and valves centered
in the cabinet opening.

9. Center the riser stub-out in cabinet opening to
allow for expansion and contraction. Riser stub­outs must not contact on any sheet metal opening.
Otherwise damage can occur to stub-outs, result­ing in water leaks and property damage.

Top Vertical

Riser

DO NOT allow the riser tailpiece to bottom
out into the swaged section. This ensures
the correct riser positioning and com-

pensates for variations in oor-to-oor

dimensions.

4. Center the risers in the pipe chase, and level the
cabinet using shims as necessary.

5. Plumb risers in two planes to assure proper unit
operation and condensate drainage.

6. Anchor the cabinets into place using rubber iso­lated sheet metal angles. Approved and tested
sheet metal angles are available from factory.

It is strongly recommended to install vibration
isolation pads to reduce noise transmission into
the floor. Failure to use isolation kits could result
in loud unit operation.

Do not drill or drive screws into the cabi­net in the area of the internal drain pan.

2-inch Ideal

3-inch Cup

Height

Bottom

Vertical Riser

FIGURE 1 - IDEAL RISER INSERTION DEPTH

Insertion Depth

LD23535

12

LD19017

FIGURE 2 - CORRECT/INCORRECT STUB-OUT
POSITIONS IN CABINET RISER OPENING

FORM 145.18-IOM1
ISSUE DATE: 8/30/2018

SECTION 1 - INSTALLATION

10. Braze or solder riser joints with industry accepted
solder or brazing rod material.

The riser system must be secured to build­ing structure. Cabinets are not designed
to support the riser system.

11. Secure the riser system at a minimum of one point
to the building structure. Cabinets are not intend­ed to support the riser system. If the temperature
range of the system exceeds the allowed expan­sion and contraction limits (1-1/2 inches maxi­mum), the installing contractor must make riser
compensation provisions.

12. Ensure that individual unit shut-off valves remain
closed until the circulating loop system is cleaned

and ushed.

TABLE 1 - HIGH SERIES PHYSICAL DATA

HIGH SERIES MODEL 09 12 15 18 24 30 36

Nominal Cooling (ton)

Compressor Type Rotary Scroll

Refrigerant Charge (oz) 21 25 34 38 44 48 50

Air Coil-Type Enhanced Copper Tubes, Enhanced Aluminum Fins

Face Area (sq ft) 1.46 1.56 2.35 2.35 2.63 3.33 3.33

1

0.75 1.0 1.25 1.5 2.0 2.5 3.0

1

Rows/FPI 2/146 3/14 3/14 3/14 3/14 3/14 3/14

Water Coil-Type Enhanced Surface Co-Axial

Standard Blower/Motor

Diameter x Width (inches) 9x4T 9x4T 9x7T 9x7T 9x7 9x8 9x8

Motor HP 0.10 0.10 0.17 0.17 0.25 0.33 0.50

Hi-Static Blower/Motor DWDI Forward-Curved Centrifugal/PSC Direct Drive

Diameter x Width (inches) 9x4T 9x4T 9x7T 9x7T 10x7T 10x8T 10x8T

Motor HP 0.10 0.10 0.17 0.17 0.25 0.33 0.50

EC Motor (ECM) Blower/Motor DWDI Forward-Curved Centrifugal/ECM Direct Drive

Diameter x Width (inches) 9x4T 9x4T 9x7T 9x7T 10x7T 9x8 9x8

Motor HP 0.33 0.33 0.33 0.33 0.33 0.50 0.50

Hi-Static ECM Blower/Motor DWDI Forward-Curved Centrifugal/ECM Direct Drive

Diameter x Width (inches) 9x4T 9x4T 9x7T 9x7T 10x7T 10x8T 10x8T

Motor HP 0.33 0.33 0.33 0.33 0.33 0.50 0.50

Filter Quantity/Size (inches) 1/14x25x1 1/14x25x1 1/16x30x1 1/16x30x1 1/16x30x1 1/20x30x1 1/20x30x1

Cabinet Weight (lb)

2

Double Width Double Inlet (DWDI) Forward-Curved Centrifugal/Permanent Split Capacitor

(PSC) Direct Drive

130 130 145 145 150 175 175

Chassis Weight (lb) 70 75 95 100 140 155 160

NOTE:

1. Nominal capacity is calculated in accordance with ARI/ISO Standard 13256-1 for water loop application.

2. Cabinet weight is approximate and does not include the weight of the risers.

13

SECTION 1 - INSTALLATION

7/8-inch

Control

Entrance

80

inches

or 88

inches

Riser
Opening
Knock­Outs (All
3 Sides)

3 inches

50 inches

B A

Left View

Optional 24V

Connection for

Surface Mount/

Remote Mounted

Thermostat

Electrical Box

Service

Pass-Thru

48 inches

Return Air
Flange Standard
1 inch

6 inches

4.5 inches

Hoses

Front View

Optional
Front Supply
Opening

7 inches

Switch Plate with
2 Speed Fan
Switch (Optional:
Disconnect/Fuses,
ADA Molex
Connector)

Chassis
Service
Panel

4 inches

4.25 inches

4.25 inches

4.25 inches

R

S

D

FORM 145.18-IOM1

ISSUE DATE: 8/30/2018

CABINET DIMENSIONS (INCHES)

MODEL A B

RA FLANGE

WIDTH (C)

09–18 17 17 16

15–24 20 20 19

30–36 24 24 23

Back

Optional
Riser
Cover
Shown

13.25

inches

Right

A/2

4.25 inches

R

S

D

R

S

D

1-inch

Supply

Duct

Flange

6 in.

50.5 inches

7/8-inch
OD Power
Entrance
7/8-inch
OD Control
Entrance

4.25
inches

4.5 inches

Right View

4 in.

Supply Riser
Opening

Return
Riser
Opening

inches

Supply Riser

Opening

36 inches

A/2

Back View

8.5

Return Riser
Opening

Condensate
Riser Opening

Left

Top View Front

R - Return Riser
S - Supply Riser
D - Drain Riser

4-5/16 inches

VSHP Cabinet

Drain Pan

Do not penetrate

1.50

this area with
drills or screws

4.75

NOTES

1. Supply, return, and condensate riser openings are pre-punched on all sides and eld convertible. Cut tabs to remove the knock-out.

2. Supply and return openings are 4 inches x 2.5 inches. During riser installation, ensure the stub-out is centered in supply and return openings.

3. Condensate P-trap is accessible from the front by removing the bottom cover plate.

4. Riser and shut-off location is measured from base of cabinet and does not include the stand height.

FIGURE 3 - CABINET UNIT DIMENSIONS & FLOOR SLEEVE DIMENSIONS

14

LD27627

FORM 145.18-IOM1
ISSUE DATE: 8/30/2018

SECTION 1 - INSTALLATION

A

Return Air
Opening

Optional

Supply

Opening

6 in.

P-Trap

B

Insulation

Shut-Off

Ball Valve

3 in.

Supply

and

Return

Risers

Allow for 2-inch Insertion
into Swage End

1

36 inches

Condensate Riser (Max. 120 inches)

Supply and Return Riser (Max. 120 inches)

As Req'd

As Req'd

Reducer

Reducer

Reduce Up Riser (Max. 120 inches)

As Req'd

NOTE

Riser shut-off valve is measured from base of cabinet and does not include the stand height.

As Req'd

Reduce Down Riser (Max. 120 inches)

FIGURE 4 - CABINET RISER DIMENSIONS

Capped Down Riser

Capped Up Riser

As Req'd

LD19330

15

SECTION 1 - INSTALLATION

FORM 145.18-IOM1

ISSUE DATE: 8/30/2018

RISER LOOP

5. Install the following parts at the base of each sup­ply and return riser to enable system ushing, bal­ancing, and servicing:

• Drain valve

• Shut-off/balancing valves

• Flow indicators

• Drain tees

6. Install strainers at the inlet of each circulating
pump.

7. Insulate loop water piping that runs through un­conditioned areas of the building or outside the
building.

When the loop water temperature is maintained
between nominal operating limits of 60.0–90.0°F,
piping does not sweat or suffer undue heat loss at
conditioned space temperatures.

8. Install vents in piping loop as required to bleed

residual air from the piping system during lling

and servicing.

9. Determine the riser shut-off valves and hose kits

required for job specic site conditions:

a. Factory-supplied risers come with the appro-

priate hose kits with NPSH type fittings (see
Figure 5 on page 17). Before attaching
NPSH type hoses, check that the female end
gasket is not missing and is free of damage
or debris. See Table 2 for information on re-
placement gaskets for NPSH hose kits.

b. For field-supplied risers, it is recommended

to order the appropriate NPSH type field
hose kits from the factory, complete with
shut-off valves. Shut-off valves are to be
field sweat connected to risers (see Figure 6
on page 17).

c. Legacy chassis with NPT type connections

and matching risers with NPT shut-off valve
connections require a special hose kit. The kit
comes complete with a NPT to NPSH swiv­el adapter on the shut-off valve and chassis
connection to mate with factory hoses (see
Figure 7 on page 18.

TABLE 2 - REPLACEMENT HOSE GASKETS

PART NUMBER DESCRIPTION

VSGK-UFHW-050 1/2-inch Rubber Gasket

VSGK-UFHW-075 3/4-inch Rubber Gasket

HOSES

Ensure the correct hose set is matched with the com­patible unit size (see Table 3). Instal the NPSH factory-
provided hoses by completing the following steps:

1. Inspect for missing or damaged hose gasket. See
Table 2 for replacement gasket part numbers.

2. Tighten by hand the screw connections to the

male NPSH tting on the shut-off valve. Hold the

ferrule stationary when tightening.

3. Tighten using a backup wrench a 1/4 turn further.
Do not overtighten.

When installing hoses, do not apply a
twist or torque load on the hose.

When tightening hoses, hold the ferrule
stationary by hand while tightening the
screw connections. Avoid tight bends, or

water ow and high pressure drops may

occur.

Hose gasket does not require extreme
tightening to obtain a seal. DO NOT
OVERTIGHTEN, or damage to gasket or
sealing surface will occur. Do not apply
thread sealant.

Hoses must be hand tightened, then fur­ther tightened for roughly another 1/4
turn. Check for leaks before tightening
any further. Do not apply excessive force;
rubber gaskets might get damaged.

Always use a back-up wrench when tight­ening hoses to valves. Otherwise, valve
solder joint may fail, leading to property
damage or serious injury.

TABLE 3 - CHASSIS HOSES

CHASSIS MODEL HOSE TYPE

09–18 1/2-inch NPSH Female-Female

24–36 3/4-inch NPSH Female-Female

16