Bard T24H1, T30H1, T24H1D, T30H1D, T36H1 Installation Instructions Manual

INSTALLATION INSTRUCTIONS

WALL MOUNTED

PACKAGE HEAT PUMPS

Standard & Dehumidification

MODELS

T24H1 T24H1D
T30H1 T30H1D
T36H1 T36H1D
T42H1 T42H1D
T48H1 T48H1D
T60H1 T60H1D

Bard Manufacturing Company, Inc.
Bryan, Ohio 43506

Since 1914...Moving ahead just as planned.

Manual: 2100-541C
Supersedes: 2100-541B
File: Volume III Tab 17
Date: 02-17-12

Manual 2100-541C
Page 1 of 28

Contents

Getting Other Information and Publications 3

Wall Mount General Information

Wall Mount Model Nomenclature ............................ 4

Shipping Damage .................................................... 4

General ................................................................ 4

Duct Work ................................................................ 5

Filters ................................................................ 5

Fresh Air Intake ....................................................... 5

Condensate Drain .................................................... 5

Installation Instructions

Wall Mounting Information ....................................... 6

Mounting the Unit .................................................... 6

Placement ................................................................ 6

Clearances Required ............................................... 6

Minimum Clearances ............................................... 6

Wiring – Main Power ............................................. 13

Wiring – Low Voltage Wiring ................................. 13

Optional Outdoor T-Stat Applications ..................... 14

Figures

Figure 1 Fresh Air Damper Assembly ................... 5

Figure 2 Unit Dimensions ...................................... 7

Figure 3A Mounting Instructions T24 & 30 .............. 8

Figure 3B Mounting Instructions T36, 42, 48 ........... 9

Figure 4 Electric Heat Clearance ........................ 10

Figure 5 Wall Mounting Instructions.....................11

Figure 6 Wall Mounting Instructions.....................11

Figure 7 Common Wall Mounting Installations.... 12

Figure 8 Compressor Cutoff ................................ 14

Figure 9 Compressor Cutoff ................................ 14

Figure 10 Electric Heat Hold-Off Wiring ................ 15

Figure 11 Electric Heat Hold-Off Wiring ................ 15

Figure 12 Defrost Control Board ........................... 19

Figure 13 Fan Blade Setting ................................. 22

Figure 14 Control Disassembly ............................. 28

Figure 15 Winding Test ......................................... 28

Figure 16 Drip Loop .............................................. 28

Start Up

General .............................................................. 16

Topping Off System Charge ................................... 16

Safety Practices ..................................................... 16

Important Installer Note ......................................... 17

High & Low Pressure Switch ................................. 17

Three Phase Scroll Compressor............................ 17

Phase Monitor ....................................................... 17

Service Hints ......................................................... 17

Sequence of Operation .......................................... 18

Pressure Service Ports .......................................... 18

Defrost Cycle ......................................................... 18

Troubleshooting

Solid State Heat Pump Control .............................. 20

Checking Temperature Sensor .............................. 21

Fan Blade Setting Dimensions .............................. 22

Removal of Fan Shroud ......................................... 22

R-410A Refrigerant Charge ................................... 22

Troubleshooting GE ECM Motors .......................... 27

Troubleshooting GE ECM Motors .......................... 28

Tables

Table 1 Clearances Required .............................. 6

Table 2 Min. Clearances Required ...................... 6

Table 3 Troubleshooting .................................... 20

Table Temperature F vs. Resistance .............. 21

Table 4 Fan Blade Dimension............................ 22

Table 5A Cooling Pressure .................................. 23

Table 5B Heating Pressure .................................. 23

Table 6A Electrical Specifications T**H ................ 24

Table 6B Electrical Specifications T**H Dehum. .. 25

Table 7 Indoor Blower Performance .................. 26

Manual 2100-541C
Page 2 of 28

GETTING OTHER INFORMATION AND PUBLICATIONS

These publications can help you install the air
conditioner or heat pump. You can usually find these at
your local library or purchase them directly from the
publisher. Be sure to consult current edition of each
standard.

National Electrical Code ...................... ANSI/NFPA 70

Standard for the Installation .............. ANSI/NFPA 90A

of Air Conditioning and Ventilating Systems

Standard for Warm Air ...................... ANSI/NFPA 90B

Heating and Air Conditioning Systems

Load Calculation for ............................ACCA Manual J

Residential Winter and Summer Air Conditioning

Duct Design for Residential .............. ACCA Manual D

Winter and Summer Air Conditioning and Equipment
Selection

FOR MORE INFORMATION, CONTACT
THESE PUBLISHERS:

ACCA Air Conditioning Contractors of America

1712 New Hampshire Ave. N.W.
Washington, DC 20009
Telephone: [phone]
Fax: [phone]

ANSI American National Standards Institute

11 West Street, 13th Floor
New York, NY 10036
Telephone: [phone]
Fax: [phone]

ASHRAE American Society of Heating, Refrigeration

and Air Conditioning Engineers, Inc.

1791 Tullie Circle, N.E.
Atlanta, GA 30329-2305
Telephone: [phone]
Fax: [phone]

NFPA National Fire Protection Association

Batterymarch Park
P.O. Box 9101
Quincy, MA 02269-9901
Telephone: [phone]
Fax: [phone]

Manufactured under the following

U.S. Patent numbers:
5,485,878; 5,301,744

Manual 2100-541C
Page 3 of 28

WALL MOUNT GENERAL INFORMATION

HEAT PUMP WALL MOUNT MODEL NOMENCLATURE

T 36 H 1– A 10 X X X X X X

MODEL

NUMBER

CAPACITY |

24 - 2 Ton
30 - 2½ Ton
36 - 3 Ton
42 - 3½ Ton
48 - 4 Ton
60 - 5 Ton

1 For 0 KW and circuit breakers (230/208 volt) or toggle disconnect (460V) applications, insert 0Z in the KW field of the model number. See Pages 24 & 25.
2 Insert “D” for dehumidification with hot gas reheat. Reference Form 7960-627 for complete details.

H - Heat Pump

SPECIALTY PRODUCTS

(Non-Standard)

VENTILATION OPTIONS

X - Barometric Fresh Air Damper (Standard)
B - Blank-off Plate
M - Motorized Fresh Air Damper
C - Commercial Ventilator - Mod. Spring Return w/Exhaust
V - Commercial Ventilator - Spring Return w/Exhaust
P - Commercial Ventilator - Power Return w/Exhaust
E - Economizer (Internal) - Fully Modulating with Exhaust
R - Energy Recovery Ventilator - Motorized with Exhaust

(See Spec. Sheet S3398)

REVISIONS

VOLTS & PHASE

A - 230/208/60/1
B - 230/208/60/3
C - 460/60/3

2

KW1

0Z - 0KW
04 - 4KW
05 - 5KW
06 - 6KW
F8 - 8KW
S8 - 8KW
09 - 9KW
10 -10KW
15 -15KW
20 -20KW

COLOR OPTIONS

X - Beige
1 - White
4 - Buckeye Gray
5 - Desert Brown
8 - Dark Bronze
A - Aluminum
S - Stainless Steel

FILTER OPTIONS

X - 1-Inch Fiberglass (MERV 2)
M - 2-Inch Pleated (MERV 11)
H - 2-Inch Pleated (MERV 8)
P - 2-Inch Pleated (MERV 6)
E - 24V 1"Electrostatic Air Cleaner

OUTLET OPTIONS

X - Front (Standard)

CONTROL MODULES

(See Spec. Sheet S3436)

COIL OPTIONS

X - Standard
1 - Phenolic Coated Evaporator
2 - Phenolic Coated Condenser
3 - Phenolic Coated Evaporator

and Condenser

NOTE: Vent options X, B and M are without exhaust capability. May require separate field supplied barometric relief in building.

SHIPPING DAMAGE

Upon receipt of equipment, the carton should be
checked for external signs of shipping damage. If
damage is found, the receiving party must contact the
last carrier immediately, preferably in writing,
requesting inspection by the carrier’s agent.

These instructions and any instructions packaged with
any separate equipment required to make up the entire
air conditioning system should be carefully read before
beginning the installation. Note particularly “Starting
Procedure” and any tags and/or labels attached to the
equipment.

While these instructions are intended as a general

GENERAL

The equipment covered in this manual is to be installed
by trained, experienced service and installation
technicians.

The refrigerant system is completely assembled and
charged. All internal wiring is complete.

The unit is designed for use with or without duct work.
Flanges are provided for attaching the supply and return
ducts.

These instructions explain the recommended method to
install the air cooled self-contained unit and the
electrical wiring connections to the unit.

recommended guide, they do not supersede any national
and/or local codes in any way. Authorities having
jurisdiction should be consulted before the installation is
made. See Page 3 for information on codes and
standards.

Size of unit for a proposed installation should be based
on heat loss/gain calculation made according to methods
of Air Conditioning Contractors of America (ACCA).
The air duct should be installed in accordance with the
Standards of the National Fire Protection Association
for the Installation of Air Conditioning and Ventilating
Systems of Other Than Residence Type, NFPA No.
90A, and Residence Type Warm Air Heating and Air
Conditioning Systems, NFPA No. 90B. Where local
regulations are at a variance with instructions, installer
should adhere to local codes.

Manual 2100-541C
Page 4 of 28

DUCT WORK

All duct work, supply and return, must be properly sized
for the design airflow requirement of the equipment. Air
Conditioning Contractors of America (ACCA) is an
excellent guide to proper sizing. All duct work or portions
thereof not in the conditioned space should be properly
insulated in order to both conserve energy and prevent
condensation or moisture damage.

Design the duct work according to methods given by the Air
Conditioning Contractors of America (ACCA). When duct
runs through unheated spaces, it should be insulated with a
minimum of one inch of insulation. Use insulation with a
vapor barrier on the outside of the insulation. Flexible joints
should be used to connect the duct work to the equipment in
order to keep the noise transmission to a minimum.

A 1/4 inch clearance to combustible material for the first
three feet of duct attached to the outlet air frame is required.
See Wall Mounting Instructions and Figures 3A, 3B and 4
for further details.

Ducts through the walls must be insulated and all joints
taped or sealed to prevent air or moisture entering the wall
cavity.

Some installations may not require any return air duct. A
metallic return air grille is required with installations not
requiring a return air duct. The spacing between louvers on
the grille shall not be larger than 5/8 inch.

Any grille that meets with 5/8 inch louver criteria may be
used. It is recommended that Bard Return Air Grille Kit
RG2 through RG5 or RFG2 through RFG5 be installed
when no return duct is used. Contact distributor or factory
for ordering information. If using a return air filter grille,
filters must be of sufficient size to allow a maximum
velocity of 400 fpm.

NOTE: If no return air duct is used, applicable installation

codes may limit this cabinet to installation only in a
single story structure.

FILTERS

A 1-inch throwaway filter is standard with each unit.
The filter slides into position making it easy to service.
This filter can be serviced from the outside by removing
the filter access panel. 2-inch pleated filters are also
available as optional accessories. The internal filter
brackets are adjustable to accommodate the 2-inch filter
by bending two (2) tabs down on each side of the filter
support bracket.

FRESH AIR INTAKE

All units are built with fresh air inlet slots punched in
the service door.

If the unit is equipped with a fresh air damper assembly,
the assembly is shipped already attached to the unit.
The damper blade is locked in the closed position. To
allow the damper to operate, the maximum and
minimum blade position stops must be installed. See
Figure 1.

All capacity, efficiency and cost of operation
information is based upon the fresh air blank-off plate in
place and is recommended for maximum energy
efficiency.

The blank-off plate is available upon request from the
factory and is installed in place of the fresh air damper
shipped with each unit.

CONDENSATE DRAIN

A plastic drain hose extends from the drain pan at the
top of the unit down to the unit base. There are
openings in the unit base for the drain hose to pass
through. In the event the drain hose is connected to a
drain system of some type, it must be an open or vented
type system to assure proper drainage.

FIGURE 1

FRESH AIR DAMPER

Manual 2100-541C
Page 5 of 28

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a

M

E

T
T

T

T
T

INSTALLATION INSTRUCTIONS

WALL MOUNTING INFORMATION

1. Two holes for the supply and return air openings
must be cut through the wall as shown in Figure 3.

WARNING

2. On wood frame walls, the wall construction must be
strong and rigid enough to carry the weight of the
unit without transmitting any unit vibration.

3. Concrete block walls must be thoroughly inspected
to insure that they are capable of carrying the weight
of the installed unit.

MOUNTING THE UNIT

1. These units are secured by wall mounting brackets
which secure the unit to the outside wall surface at
both sides. A bottom mounting bracket, attached to
skid for shipping, is provided for ease of installation,
but is not required.

2. The unit itself is suitable for 0 inch clearance, but
the supply air duct flange and the first 3 feet of
supply air duct require a minimum of 1/4 inch
clearance to combustible material. However, it is
generally recommended that a 1-inch clearance is
used for ease of installation and maintaining the
required clearance to combustible material. See
Figure 3 for details on opening sizes.

3. Locate and mark lag bolt locations and bottom
mounting bracket location. See Figures 3A & 3B.

4. Mount bottom mounting bracket.

5. Hook top rain flashing, attached to front - right of
supply flange for shipping, under back bend of top.

Failure to provide the 1/4 inch clearance
between the supply duct and a combustible
surface for the first 3 feet of duct can result in
fire causing damage, injury or death.

PLACEMENT

1. On side-by-side installations, maintain a minimum
of 20 inches clearance on right side to allow access
to control panel and heat strips, and to allow proper
airflow to the outdoor coil. Additional clearance
may be required to meet local or national codes.

2. Care should be taken to ensure that the recirculation
and obstruction of condenser discharge air does not
occur. Recirculation of condenser discharge air can
be from either a single unit or multiple units. Any
object such as shrubbery, a building or a large object
can cause obstructions to the condenser discharge
air. Recirculation or reduced airflow caused by
obstructions will result in reduced capacity, possible
unit pressure safety lockouts and reduced unit
service life.

Units with a blow through condenser, such as the
T**H 10 EER units, it is recommended there be a
minimum distance of 15 feet between the front of
the unit and any barrier or 20 feet between the fronts
of two opposing (facing) units.

6. Position unit in opening and secure with 5/16 lag bolts;
use 7/8 inch diameter flat washers on the lag bolts.

7. Secure rain flashing to wall and caulk across entire
length of top. See Figures 3A & 3B.

8. For additional mounting rigidity, the return air and
supply air frames or collars can be drilled and
screwed or welded to the structural wall itself
(depending upon wall construction). Be sure to
observe required clearance if combustible wall.

SLEDO

H03T,H42

H06T,H84T,H24T,H63

Manual 2100-541C
Page 6 of 28

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Air Outlet

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MIS-2729 A

Electrical

Low Voltage

Entrance

High Voltage

Electrical
Entrance

4° Pitch

Rain Hood

Built In

Access

Panel

(Lockable)

Heater

Electric

Heat

C. Breaker/
Disconnect

Access Panel

Drain

Side View

HC

K

J

I

D

2.13
A

Cond.

Air

Inlet

Electrical

Entrances

Optional

Side Wall

Mounting

Brackets

(Built In)

Location

Shipping

Return Air Opening

Supply Air Opening

Top Rain

Flashing

Bottom Installation
Bracket

Back View

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Manual 2100-541C
Page 7 of 28

1/4" CLEARANCE ON ALL

FOUR SIDES OF SUPPLY

MIS-311 C

MATERIALS

AIR DUCT IS REQUIRED

FROM COMBUSTABLE

FOAM AIR SEAL

RAIN FLASHING

SUPPLIED

FIGURE 3A

T24H1, T30H1

SEAL WITH BEAD

OF CAULKING ALONG

ENTIRE LENGTH OF TOP.

MOUNTING INSTRUCTIONS

EDCBA

TOP

17 5/83 13/165 1/48 1/228 1/2

WALL STRUCTURE

WALL

SUPPLY AIR

DUCT

PANEL

HEATER ACCESS

RETURN AIR

OPENING

NOTES:

IT IS RECOMMENDED THAT A BEAD OF

SILICONE CAULKING BE PLACED BEHIND

THE SIDE MOUNTING FLANGES AND UNDER

TOP FLASHING AT TIME OF INSTALLATION.

W*R UNIT SHOWN, W*L UNIT

CONTROLS AND HEATER ACCESS

IS ON OPPOSITE (LEFT) SIDE.

16 7/84 9/164 1/21030

B

E

14"

1"

"

1

2

"

1

8

3

4"

Typ.

4

COMBUSTIBLE MATERIALS

1/4" MIN. CLEARANCE FROM

REQUIRED DIMENSIONS TO MAINTAIN

COMBUSTIBLE MATERIALS

RECOMMENDED 1" CLEARANCE FROM

REQUIRED DIMENSIONS TO MAINTAIN

Manual 2100-541C
Page 8 of 28

28"

Supply Opening

Return Opening

C CA

D

12"

12"

12"

12"

1"

4"

3"

"

7

8

12"

Typ.

"

1

2

4

Wall Opening and Hole Location View Right Side View

5"

RAIN FLASHING

SUPPLIED

FOAM AIR SEAL

FOUR SIDES OF SUPPLY

AIR DUCT IS REQUIRED

1/4" CLEARANCE ON ALL

WALL STRUCTURE

FROM COMBUSTABLE

MATERIALS

PANEL

SUPPLY AIR

DUCT

RETURN AIR

OPENING

NOTES:

THE SIDE MOUNTING FLANGES AND UNDER

TOP FLASHING AT TIME OF INSTALLATION.

IT IS RECOMMENDED THAT A BEAD OF

SILICONE CAULKING BE PLA CE D BEHI ND

MIS-416 E

Right Side View

TOP.

FIGURE 3B

TOP

SEAL WITH BEAD

ENTIRE LENGTH OF

OF CAULKING ALONG

MOUNTING INSTRUCTIONS

T36H1, T42H1, T48H1, T60H1

6 1/4 1 1/4 29 3/4

10 1/2

ABCDE

30 1/2

29

2

32 12 5 1/2

WALL

HEATER ACCESS

A CC

Typ.

3

"

1

8

2

"

1

2

"

7

B

E

16"

8

"

8

1

3

4"

30"

3"

1"

4"

Typ.

"

2

6

1

16"

" 6

1

2

6

Dimension is 21" on 95" tall units.

Dimension is 10" on T48H1 & T60H1.

Dimension is 6" on T48H1 & T60H1.

2

3

1

"

7

8

1

2

Wall Opening and Hole Location View

16"

Return Opening

1

1

16"

Supply Opening

D

16"

16"

REQUIRED DIMENSIONS TO MAINTAIN

1/4" MIN. CLEARANCE FROM

COMBUSTIBLE MATERIALS

RECOMMENDED 1" CLEARANCE FROM

REQUIRED DIMENSIONS TO MAINTAI N

COMBUSTIBLE MATERIALS

Manual 2100-541C
Page 9 of 28