Bard C24H1-B, C30H1-C, C30H1-A, C30H1-B, C36H1-A Installation Instructions Manual

INSTALLATION INSTRUCTIONS

WALL MOUNTED

PACKAGED HEAT PUMP

Models:

C24H1-A
C24H1-B
C30H1-A
C30H1-B
C30H1-C

C36H1-A
C36H1-B
C36H1-C
C42H1-A
C42H1-B
C42H1-C

C48H1-A
C48H1-B
C48H1-C
C60H1-A
C60H1-B
C60H1-C

Bard Manufacturing Company, Inc.
Bryan, Ohio 43506

www.bardhvac.com

Manual: 2100-586D
Supersedes: 2100-5486C
Date: 7-28-15

Page 1 of 25

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 ...................... 13

Figures

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

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

Figure 3A Mounting Instructions C24H, C30H ..........8

Figure 3B Mounting Instructions C36, 42, 48, 60H ... 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 Defrost Control Board ............................ 17

Figure 9 Fan Blade Setting ................................... 20

Figure 10 Control Disassembly .............................. 25

Figure 11 Winding Test ........................................... 25

Figure 12 Drip Loop ................................................ 25

Start Up

General ............................................................... 14

Topping Off System Charge .................................... 14

Safety Practices ...................................................... 14

Important Installer Note ........................................... 15

High & Low Pressure Switch ................................... 15

Three Phase Scroll Compressor ............................. 15

Phase Monitor ......................................................... 15

Service Hints ........................................................... 15

Sequence of Operation ........................................... 16

Pressure Service Ports ........................................... 16

Defrost Cycle .......................................................... 16

Troubleshooting

Solid State Heat Pump Control ............................... 18

Checking Temperature Sensor ............................... 19

Fan Blade Setting Dimensions ................................ 20

Removal of Fan Shroud .......................................... 20

R-410A Refrigerant Charge ....................................20

Troubleshooting GE ECM Motors ........................... 24

Troubleshooting GE ECM Motors ........................... 25

Tables

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

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

Table 3 Troubleshooting......................................18

Table Temperature F vs. Resistance ............... 19

Table 4 Fan Blade Dimension ............................. 20

Table 5A Cooling Pressure .................................... 21

Table 5B Heating Pressure ................................... 21

Table 6 Electrical Specications C**H ................ 22

Table 7 Indoor Blower Performance ................... 23

Manual 2100-586D
Page 2 of 25

GETTING OTHER INFORMATION AND PUBLICATIONS

These publications can help you install the air

conditioner or heat pump. You can usually nd 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]

Manual 2100-586D
Page 3 of 25

WALL MOUNT GENERAL INFORMATION

HEAT PUMP WALL MOUNT MODEL NOMENCLATURE

C 36 H 1 – A 05 V P 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

Note  All 230/208V units with or without electric heat have circuit breaker. 0C is for 460V circuit breaker & 0KW. No 460V electric heat options w/circuit
breaker available.

H - Heat Pump

VENTILATION OPTIONS

B - Blank-off Plate
V - Commercial Ventilator - Mod. Spring Return w/Exhaust
S - Economizer (Internal) - Fully Modulating with Exhaust
R - Energy Recovery Ventilator - Motorized with Exhaust
(See Spec. Sheet S3459)

460V -0Z and all 460V KW options are with Rotary Disconnect.

REVISIONS

VOLTS & PHASE

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

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

CONTROL MODULES

(See Spec. Sheet S3459)

COLOR OPTIONS

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

FILTER OPTIONS

X - 1-Inch Fiberglass (MERV 2)
M - 2-Inch Pleated (MERV 11)
P - 2-Inch Pleated (MERV 8)

See available heater options by unit model number.

COIL OPTIONS

X - Standard Hydrophilic Fin
Indoor Coil & Uncoated
Aluminum Outdoor Coil
1 - Phenolic Coated Indoor Coil
2 - Phenolic Coated Outdoor Coil
3 - Phenolic Coated ID & OD Coil

SUPPLY AIR OUTLET

X - Front (Standard)

WARNING

Falling or tipping the unit could cause injury or death!
Use two (2) people or a machine to move the unit.

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.

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.

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
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 2100-586D
Page 4 of 25

DUCT WORK

All duct work, supply and return, must be properly sized

for the design airow 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 rst

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.

FILTERS

A 1-inch throwaway lter is standard with each
unit. The lter slides into position making it easy to
service. This lter can be serviced from the outside by
removing the lter access panel. 2-inch pleated lters

are also available as optional accessories. The internal

lter brackets are adjustable to accommodate the 2-inch
lter by bending two (2) tabs down on each side of the
lter 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, efciency and cost of operation

information is based upon the fresh air blank-off plate
in place and is recommended for maximum energy

efciency.

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.

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 lter grille,
lters must be of sufcient 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.

FIGURE 1

FRESH AIR DAMPER

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.

Manual 2100-586D
Page 5 of 25

INSTALLATION INSTRUCTIONS

WARNING

Failure to bolt the unit to the wall could result

in the unit falling, causing injury or death!

Follow all mounting 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.

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 ensure 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 ange and the rst 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 ashing, attached to front - right of
supply ange for shipping, under back bend of top.

6. Position unit in opening and secure with 5/16 lag bolts;

use 7/8 inch diameter at washers on the lag bolts.

7. Secure rain ashing to wall and caulk across entire

length of top. See Figures 3A & 3B.

WARNING

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

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

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.

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

airow 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

airow caused by obstructions will result in reduced

capacity, possible unit pressure safety lockouts and
reduced unit service life.

Units with a draw through condenser, such as

the C**H 11 EER, it is recommended there be a
minimum distance of 15 feet between the front of

the unit and any barrier to airow.

REQUIRED STEPS AFTER FINAL
PLACEMENT (C48H & C60H UNITS
ONLY)

The compressor is secured to the unit base for shipping.
Although unit will perform as designed with the
compressor secured in place, there may be noticeable
additional noise and vibration. To obtain the lowest
noise and vibration levels, remove the compressor

Clearances Required for Service Access

and Adequate Condenser Airow

MODELS LEFT SIDE RIGHT SIDE

C24H, C30H 36" 36"

C36H, C42H, C48H, C60H 36" 36"

Manual 2100-586D
Page 6 of 25

Minimum Clearances Required to
Combustible Materials

MODELS

C24H, C30H 1/4" 0"

C36H, C42H, C48H, C60H 1/4" 0"

SUPPLY AIR DUCT

FIRST THREE FEET

CABINET

3"

8620-160 Drain Fitting ­Supplied with unit,
field installed.

Panel

Air Inlet

Door

Vent Option

Condenser

Filter Access

Ventilation
Air

Front View

F

W

5.75

G

Panel

indoor coil

Electric

Cond.

Access

Heater

4° Pitch

Rain Hood

Side View

Heat

Built In

Air

Disconnect

(Lockable)

Access Panel

Drain for

Outlet

C. Breaker/

ERV and

ECONWMS

only hood

Low Voltage

Electrical
Entrance

High Voltage

Electrical
Entrance

D

2.13

A

C H

K

J

I

Supply Air Opening

Return Air Opening

Top Rain

Flashing

Shipping

Location

Back View

Electrical

Entrances

Optional

Side Wall

Mounting

Brackets

(Built In)

T

S

S

M

.44

L

Q

P

S

N

O

E

R

S

S

B

Bottom Installation
Bracket - optional use
for direct mount, not
used when unit
installed with curb

shipping brackets after the unit is in its nal operating

location.

Remove the side grille to gain access to the compressor
shipping brackets. The brackets are located on the
compressor double isolation base at the front and rear
of the compressor. The brackets are secured to the unit
base with two (2) screws, and secured to the isolation
plate with a 1/4" nut. Remove and dispose of the two
(2) screws and brackets. Re-install the 1/4" nut once
bracket is removed.

FIGURE 2

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

WIDTH

DEPTH

MODEL

C24H1
C30H1

C36H1
C42H1

C48H1
C60H1

(W)

38.200 17.125 70.563 7.88 27.88 13.88 27.88 40.00 10.88 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

42.075 22.432 84.875 9.88 29.88 15.88 29.88 43.88 13.56 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

42.075 22.432 93.000 9.88 29.88 15.88 29.88 43.88 13.56 37.00 30.00 40.81 35.06 42.81 40.56 3.37 43.00 31.00 10.00 1.44 16.00 10.00

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

C**H

RIGHT UNIT

Manual 2100-586D
Page 7 of 25

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 3A

C24H, C30H

MOUNTING INSTRUCTIONS

Manual 2100-586D
Page 8 of 25