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Manual    2100-374
Page      2

WALL MOUNT GENERAL INFORMATION

 HEAT PUMP WALL MOUNT MODEL NOMENCLATURE

       NOTE:  For 0 KW and circuit breakers (230/208 Volt) or pull disconnects (460 Volt) applications, insert 0 0Z in the KW field of model number.

FILTER OPTIONS
X - One Inch Throwaway (Standard)
W - One Inch Washable
P - Two Inch Pleated

COLOR OPTIONS

X - Beige

(Standard)

1 - White
2 - Mesa Tan
3 - Colonial White
4 - Buckeye Gray

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

and Condenser

OUTLET OPTIONS
X - Front (Standard)

VENTILATION OPTIONS
X - Barometric Fresh Air Damper

(Standard)

B - Blank-off Plate
M - Motorized Fresh Air Damper
V - Commercial Room Ventilator

Motorized with Exhaust

E - Economizer (Internal) - Fully

Modulating with Exhaust

R - Energy Recovery Ventilator -

with Exhaust

CAPACITY
24 - 2 Ton

REVISIONS

VOLTS & PHASE
A - 230/208/60/1
B - 230/208/60/3
C - 460/60/3

KW

WH   24   2   D   A   08   X   X   X   X   X   B

CONTROL MODULES

MODEL NUMBER

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 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 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 1 for information on codes and
standards.

Size of unit for a proposed installation should be based
on heat loss calculation made according to methods of

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

TABLE 1

ELECTRIC HEAT TABLE

s

l

e

d

o

M

W

K

A

D

2

4

2

H

W

B

D

2

4

2

H

W

C

D

2

4

2

H

W

1

-

0

4

2

1

-

8

0

2

3

-

0

4

2

3

-

8

0

2

3

-

0

6

4

A

U

T

B

A

U

T

B

A

U

T

B

A

U

T

B

A

U

T

B

4

7

.

6

1

0

5

6

3

1

4

.

4

1

0

4

2

0

1

8

3

.

3

3

0

0

3

7

2

8

.

8

2

5

7

4

0

2

6

4

.

4

1

0

0

5

0

2

5

.

2

1

0

6

3

5

1

2

.

7

5

7

4

0

2

Summary of Contents for WH242D

Page 1: ...ONS WALL MOUNTED PACKAGE HEAT PUMP Model WH242D Manual 2100 374D Supersedes 2100 374C File Volume III Tab 17 Date 09 01 03 Bard Manufacturing Company Bryan Ohio 43506 Since 1914 Moving ahead just as p...

Page 2: ...ontrol Board 15 Figure 11 Fan Blade Setting 18 Figure 12 Circuit Diagram H P Cooling Mode 21 Figure 13 Circuit Diagram H P Dehumidification 21 Start Up Important Installer Note 13 Crankcase Heaters 13...

Page 3: ...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 Washingt...

Page 4: ...he 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 com...

Page 5: ...i n U h t d i W W h t p e D D t h g i e H H y l p p u S n r u t e R E F G I J K L M N O P Q R S T A B C D D 2 4 2 H W 0 3 3 3 5 2 1 7 1 3 6 5 0 7 8 8 7 8 8 9 1 8 8 1 1 8 8 9 1 0 0 5 3 0 5 8 1 5 7 5 2...

Page 6: ...three feet of duct attached to the outlet air frame is required See Pages Wall Mounting Instructions and Figure 3 for further details Ducts through the walls must be insulated and all joints taped or...

Page 7: ...bly and sliding the brackets apart to the required width and retightening the four 4 screws FRESH AIR INTAKE All units are built with fresh air inlet slots punched in the service panel If the unit is...

Page 8: ...airflow to the outdoor coil Additional clearance may be required to meet local or national codes WIRING MAIN POWER Refer to the unit rating plate for wire sizing information and maximum fuse or HACR...

Page 9: ...Manual 2100 374 Page 7 FIGURE 3 MOUNTINGINSTRUCTIONS MIS 353...

Page 10: ...Manual 2100 374 Page 8 FIGURE 5 WALLMOUNTINGINSTRUCTIONS SEE UNIT DIMENSIONS FIGURE 1 FOR ACTUAL DIMENSIONS MIS 549 MIS 548 FIGURE 4 WALLMOUNTINGINSTRUCTIONS SEE FIGURE 3 MOUNTING INSTRUCTIONS...

Page 11: ...Manual 2100 374 Page 9 FIGURE 6 COMMONWALLMOUNTINGINSTALLATIONS MIS 550...

Page 12: ...plication of these parts FIGURE 7 WHxxxDx HOT GAS REHEAT DURING DEHUMIDIFICATION WITH CS2000 ENERGY MONITOR FULL TIME DEHUMIDIFICATION FACTORY JUMPER H600A MIS 1561 8403 032 BARD CS2000 8403 038 HONEY...

Page 13: ...wn in Table 4 will work with this equipment The thermostat and subbase must be matched and the correct operation can be assured only be proper selection and application of these parts FIGURE 8 WHxxxDx...

Page 14: ...1 e l b a m m a r g o r P n o N c i n o r t c e l E r e v o e g n a h C l a u n a M r o o t u A 9 4 0 3 0 4 8 0 8 3 3 9 F 1 t a e h e g a t s 3 l o o c e g a t s 2 e l b a m m a r g o r P y a D 7 r e...

Page 15: ...OOLING Circuit R Y makes at thermostat pulling in compressor contactor starting the compressor and outdoor motor The G indoor motor circuit is automatically completed on any call for cooling operation...

Page 16: ...erative to match the correct pressure curve to the unit by model number DEFROST CYCLE The defrost cycle is controlled by temperature and time on the solid state heat pump control See Figure 10 When th...

Page 17: ...frost operation of the unit without waiting for the outdoor ambient to fall into the defrost region By placing a jumper across the SEN JMP terminals a 1 4 inch QC terminal works best the defrost senso...

Page 18: ...c e c a l p e R t o n g n i s a h p r e w o P t c e r r o c e s a h p n o D E L d e r r o f k c e h C y l n o s t i n u e s a h p 3 r o t i n o m t i n u e h t o t s d a e l r e w o p o w t h c t i w...

Page 19: ...17434 16984 16547 16122 15710 15310 14921 14544 14177 13820 13474 13137 12810 12492 12183 11883 11591 11307 11031 10762 75 0 76 0 77 0 78 0 79 0 80 0 81 0 82 0 83 0 84 0 85 0 86 0 87 0 88 0 89 0 90 0...

Page 20: ...s 3 Remove screws 9 holding fan shroud to condenser and bottom 4 Unwire condenser fan motor 5 Slide complete motor fan blade and shroud assembly out the left side of the unit 6 Service motor fan as ne...

Page 21: ...2 4 2 H W B D g e d 5 7 B W g e d 2 6 e d i S w o L e d i S h g i H 5 7 6 1 2 6 7 9 2 2 7 7 2 4 2 9 7 6 5 2 0 8 1 7 2 1 8 6 8 2 3 8 2 0 3 4 8 8 1 3 6 8 6 3 3 B D g e d 0 8 B W g e d 7 6 e d i S w o L...

Page 22: ...n a l B r e p m a D r i A h s e r F c i r t e m o r a B r e p m a D r i A h s e r F d e z i r o t o M t s u a h x E h t i w r o t a l i t n e V m o o r s s a l C t s u a h x E h t i w r e z i m o n o...

Page 23: ...V 2 THRU 3 1 2 TON USE ORIFICE OUTDOOR COIL INDOOR COIL REHEAT COIL 4 WAY VALVE CHECK VALVE CAPILLARY DRAIN ASSY 3 WAY VALVE COMPRESSOR TXV 2 THRU 3 1 2 TON USE ORIFICE OUTDOOR COIL FIGURE 12 BARD MFG...

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