Bard W30H2-A, W24H2-B, W24H2-A, W24H2-C, W30H2-B Installation Instructions Manual

INSTALLATION INSTRUCTIONS

WALL MOUNTED PACKAGE

HEAT PUMP

Models:

W18H2-A W24H2-A

W24H2-B
W24H2-C

W30H2-A
W30H2-B
W30H2-C

W36H2-A
W36H2-B
W36H2-C

W42H2-A
W42H2-B
W42H2-C

W48H2-A
W48H2-B
W48H2-C

W60H2-A
W60H2-B
W60H2-C

W24H2DA
W24H2DB
W24H2DC

W30H2DA
W30H2DB
W30H2DC

W36H2DA
W36H2DB
W36H2DC

W42H2DA
W42H2DB
W42H2DC

W48H2DA
W48H2DB
W48H2DC

W60H2DA
W60H2DB
W60H2DC

Bard Manufacturing Company, Inc.
Bryan, Ohio 43506

www.bardhvac.com

Manual: 2100-604A
Supersedes: 2100-604
Date: 2-1-16

Page 1 of 28

CONTENTS

Getting Other Information and Publications 3

Wall Mount General Information .........................4

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

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

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

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

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

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

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

Installation ............................................................... 6

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

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

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

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

Wiring – Main Power .......................................... 14

Wiring – Low Voltage Wiring ................................ 14

Figures

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

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

Figure 3A Mounting Instructions W18, W24 ........... 8

Figure 3B Mounting Instructions W30, W36 ........... 9

Figure 3C

Figure 4 Electric Heat Clearance ....................... 11

Figure 5 Wall Mounting Instructions .................. 12

Figure 6 Wall Mounting Instructions .................. 12

Figure 7 Common Wall Mounting Installations .... 13

Figure 8 Defrost Control Board .......................... 18

Figure 9 Fan Blade Setting ............................... 21

Mounting Instructions W42, W48, W60

.. 10

Start Up ................................................................... 15

General ............................................................ 15

Topping Off System Charge ................................. 15

Safety Practices ................................................ 15

Important Installer Note ..................................... 16

High and Low Pressure Switch ............................ 16

Three Phase Scroll Compressor ........................... 16

Phase Monitor ................................................... 16

Condenser Fan Operation ................................... 16

Service Hints .................................................... 16

Sequence of Operation ....................................... 17

Pressure Service Ports ........................................ 17

Defrost Cycle ..................................................... 17

Service ..................................................................... 19

Solid State Heat Pump Control ........................... 19

Checking Temperature Sensor ............................. 20

Fan Blade Setting Dimensions ............................ 21

Removal of Fan Shroud ...................................... 21

Refrigerant Charge ............................................. 21

Tables

Table 1 Troubleshooting .................................. 19

Temperature vs. Resistance ................................ 20

Table 2 Fan Blade Dimension .......................... 21

Table 3A Cooling Pressure ................................. 22

Table 3B Heating Pressure ................................. 22

Table 4A Electrical Specifications ...................... 23

Table 4B Electrical Specifications ...................... 24

Table 5 Recommended Airflow ......................... 25

Table 6 Indoor Blower Performance .................. 25

Tables 7 Maximum ESP Electric Heat Only ......... 26

Table 8 Electric Heat ...................................... 26

Table 9 Optional Accessories ........................... 27

Table 10 Vent and Control Options ..................... 28

Manual 2100-604A
Page 2 of 28

GETTING OTHER INFORMATION AND PUBLICATIONS

These publications can help when installing the
furnace. They can usually be found at the local library
or purchased directly from the publisher. Be sure to
consult the 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]

Manual 2100-604A
Page 3 of 28

WALL MOUNT GENERAL INFORMATION

HEAT PUMP WALL MOUNT MODEL NOMENCLATURE

W 42 H 2 – A 10 X X X X X A

MODEL NUMBER

CAPACITY

18 - 1½ Ton
24 - 2 Ton
30 - 2½ Ton
36 - 3 Ton
42 - 3½ Ton
48 - 4 Ton
60 - 5 Ton

 For 0 KW and circuit breakers (230/208 volt) or toggle disconnect (460V) applications, insert 0Z in the KW field of the model number.
 Insert “D” for dehumidification with hot gas reheat. Reference Form 7960-702 for complete details.

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

H - Heat Pump

SPECIALTY PRODUCTS 

(Non-Standard)

VENTILATION OPTIONS

X - Barometric Fresh Air Damper (Standard)
B - Blank-off Plate
M - Motorized Fresh Air Damper
V - Commercial Ventilator - Motorized with Exhaust
S - Economizer (Std.) - Enthalpy
W - Economizer (Full Flow) - Enthalpy
T - Economizer (Full Flow) - Temperature
R - Energy Recovery Ventilator - Motorized with Exhaust
(See Spec. Sheet S3398)

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.

REVISIONS

VOLTS & PHASE

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

KW 

COLOR OPTIONS

X - Beige (Standard)
1 - White
4 - Buckeye Gray
5 - Desert Brown
8 - Dark Bronze

FILTER OPTIONS

X - 1" Throwaway (Standard)
W - 2" Washable
P - 2" Pleated

OUTLET OPTIONS

X - Front (Standard)
T - Top Outlet (W30H, W36H Only)

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.

CONTROL MODULES

(See Spec. Sheet S3398)

COIL OPTIONS

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

While these instructions are intended as a general

GENERAL

recommended guide, they do not supersede any
national and/or local codes in any way. Authorities

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.

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 2100-604A
Page 4 of 28

DUCT WORK

FILTERS

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.

Refer to Maximum ESP of operation Electric Heat
Tables 7.

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 1" 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.

Models W18 and W24 are approved for 0" clearance
to the supply duct. For model series W30, W36,
W42, W48 and W60, a 1/4" clearance to combustible
material for the first 3' of duct attached to the outlet air
frame is required. See Wall Mounting Instructions and
Figures 3 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".

Any grille that meets with 5/8" louver criteria may be
used. It is recommended that Bard Return Air Grille
Kit RG-2W through RG-5W or RFG-2W through RFG­5W 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.

A 1" 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. A 1" washable filter and 2" pleated
filter are also available as optional accessories. The
internal filter brackets are adjustable to accommodate
the 2" filter by bending two 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 2100-604A
Page 5 of 28

INSTALLATION

WALL MOUNTING INFORMATION

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

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

WARNING

Failure to provide the 1/4" clearance between
the supply duct and a combustible surface

for the rst 3ʹ of duct can result in re causing
damage, injury or death.

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" clearance, but the
supply air duct flange and the first 3' of supply
air duct require a minimum of 1/4" clearance to
combustible material for model series W30, W36,
W42, W48 and W60. However, it is generally
recommended that a 1" 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 Figure 3).

4. Mount bottom mounting bracket.

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

Clearances Required for Service Access
and Adequate Condenser Airflow

MODELS LEFT SIDE RIGHT SIDE

W18H, W24H, W30H, W36H 15" 20"

W42H, W48H, W60H 20" 20"

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

7. Secure rain flashing to wall and caulk across entire
length of top (see Figure 3).

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.

9. On side-by-side installations, maintain a minimum
of 20" 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.

NOTE: Refer to Figures 2 – 7 for dimensions and
various mounting configurations.

Minimum Clearances Required to
Combustible Materials

MODELS

W18H, W24H 0" 0"

W30H, W36H 1/4" 0"

W42H, W48H, W60H 1/4" 0"

SUPPLY AIR DUCT

FIRST 3'

CABINET

Manual 2100-604A
Page 6 of 28

3"

11"

7.88

1.00

31.88

Heat

models.

Electric

Hood for
ECONWMT

MIS-2487 G

1

1

1

Condenser

Filter Access Panel

Front View

Air Outlet

Standard
flush vent
door for
non-ERV/
Econ.
models

Ventilation Air

5.88

F

W

G

Low Voltage

Electrical

Entrance

High Voltage

Side View

Drain

Electrical

Cond.

Air

Inlet

Heater

Access

Panel

4° Pitch

Built In

Rain Hood

Disconnect

Access Panel

(Lockable)

Entrance

C. Breaker/

Hood for ERV and
ECONWMS models
only

C

I

D

J

H

A

2.13

K

Mounting

Supply Air Opening

Side Wall

Brackets

Location

Shipping

Return Air Opening

(Built In)

Optional

Electrical

Entrances

Top Rain

Flashing

Bottom Installation
Bracket

Back View

P

M

O

E

R

S

S

S

S

S

T

.44

N

Q

B

L

FIGURE 2

Dimensions of Basic Unit for Architectural and Installation Requirements (Nominal)

Width

Depth

Model

(W)

W18H2

33.300 17.125 70.563 7.88 19.88 11.88 19.88 35.00 18.50 25.75 20.56 26.75 28.06 29.25 27.00 2.63 34.13 22.06 10.55 5.00 12.00 5.00

W24H2

W30H2

38.200 17.125 70.563 7.88 27.88 13.88 27.88 40.00 18.50 25.75 17.93 26.75 28.75 29.25 27.00 2.63 39.13 22.75 9.14 5.00 12.00 5.00

W36H2

W42H2

42.075 22.432 84.875 9.88 29.88 15.88 29.88 43.88 19.10 31.66 30.00 32.68 26.94 34.69 32.43 3.37 43.00 23.88 10.00 1.44 16.00 1.88

W48H2

W60H2 42.075 22.432 94.875 9.88 29.88 15.88 29.88 43.88 13.56 41.66 30.00 42.68 36.94 44.69 42.43 3.37 43.00 33.88 10.00 1.44 16.00 1.88

Height

(D)

All dimensions are in inches. Dimensional drawings are not to scale.

Supply Return

(H)

A B C B E F G I J K L M N O P Q R S T

W**H
RIGHT
UNIT

 Optional top outlet (factory installed only) for W30H and W36H models only.

Manual 2100-604A
Page 7 of 28

12"

12"

12"

1"

12"

20"

20"

"

3"

4"

Typ.

8"

20

1

2

"

12"

1"

3

1

8

"

4"

Typ.

5"

7

8

"

3

13

16

"

2" 2"

7

1

16

" 7

1

16

12"

Right Side View

RETURN AIR

DUCT

IS ON OPPOSITE (LEFT) SIDE.

OPENING

ENTIRE LENGTH OF TOP.

TOP

WALL

OF CAULKING ALONG

PANEL

FOAM AIR SEAL

WALL STRUCTURE

NOTES:

RAIN FLASHING

HEATER ACCESS

TOP FLASHING AT TIME OF INSTALLATION.

THE SIDE MOUNTING FLANGES AND UNDER

SILICONE CAULKING BE PLACED BEHIND

CONTROLS AND HEATER ACCESS

MIS-353 D

Wall Opening and Hole Location View

SEAL WITH BEAD

IT IS RECOMMENDED THAT A BEAD OF

W**A UNIT SHOWN, W**L UNIT

SUPPLY AIR

SUPPLIED

Return Opening

Supply Opening

FIGURE 3A

W18H2, W24H2

Mounting Instructions

Manual 2100-604A
Page 8 of 28

D

12"

12"

12"

12"

12"

C CA

28"

1"

3"

4"

Typ.

4

1

2

"

B

E

14"

1"

3

1

8

"

4"

Typ.

5"

4

1

2

"

7

8

"

RETURN AIR

SUPPLIED

Return Opening

16 7/84 9/164 1/21030

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

EDCBA

COMBUSTIBLE MATERIALS

RECOMMENDED 1" CLEARANCE FROM

REQUIRED DIMENSIONS TO MAINTAIN

THE SIDE MOUNTING FLANGES AND UNDER

1/4" CLEARANCE ON ALL

RAIN FLASHING

COMBUSTIBLE MATERIALS

DUCT

TOP FLASHING AT TIME OF INSTALLATION.

1/4" MIN. CLEARANCE FROM

REQUIRED DIMENSIONS TO MAINTAIN

OPENING

ENTIRE LENGTH OF TOP.

MATERIALS

NOTES:

OF CAULKING ALONG

PANEL

FOAM AIR SEAL

FOUR SIDES OF SUPPLY

AIR DUCT IS REQUIRED

FROM COMBUSTABLE

WALL STRUCTURE

TOP

MIS-311 C

Wall Opening and Hole Location View Right Side View

WALL

HEATER ACCESS

SEAL WITH BEAD

IT IS RECOMMENDED THAT A BEAD OF

SILICONE CAULKING BE PLACED BEHIND

SUPPLY AIR

Supply Opening

W*R UNIT SHOWN, W*L UNIT

CONTROLS AND HEATER ACCESS

IS ON OPPOSITE (LEFT) SIDE.

FIGURE 3B

W30H2, W36H2

Mounting Instructions

Manual 2100-604A
Page 9 of 28