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Manual 2100-647 

Page 

4 of 28

WALL MOUNT GENERAL INFORMATION

AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE

 

H  

42  

A  

4  – 

A  

05 

J

 

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 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.

Electrical shock hazard.
Have a properly trained individual perform 

these tasks.
Failure to do so could result in electric shock 

or death.

!

WARNING

Cut hazard.
Wear gloves to avoid contact with sharp 

edges.
Failure to do so could result in personal injury.

!

CAUTION

KW

MODEL SERIES

CONTROL MODULES

(See Spec. Sheet)

VOLTS & PHASE

A  – 230/208/60/1

REVISIONS

VENTILATION OPTIONS

B  – Blank-Off Plate (No Ventilation)
Y  – 100% Economizer Temperature
Z  – 100% Economizer Enthalpy

FILTER OPTIONS

P – 2 inch Pleated MERV 8

COLOR OPTIONS

X  – Beige (Standard)
1  – White
4  – Buckeye Gray
5  – Desert Brown
6  – Dark Bronze
A  – Aluminum
S  – Stainless Steel

COIL OPTIONS

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

OUTLET OPTIONS

X – Front (Standard)

CAPACITY

24 – 2 Ton
36 – 3 Ton
42  – 3½ Ton
48  – 4 Ton
60  – 5 Ton

A  – Right Hand Air Conditioner
L  – Left Hand Air Conditioner

Summary of Contents for H24AA-A

Page 1: ...IR CONDITIONER Models INSTALLATION INSTRUCTIONS H24AA A H36AA A H42AA A H48AA A H60AA A H24LA A H36LA A H42LA A H48LA A H60LA A Bard Manufacturing Company Inc Bryan Ohio 43506 www bardhvac com Manual...

Page 2: ...ssories 22 Table 10 Vent and Control Options 22 Table 11 Unit Low Voltage Terminal Connection Chart MV Series Controller 23 Table 12 Unit Low Voltage Terminal Connection Chart MC Series Controller 24...

Page 3: ...mmer 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 Contracto...

Page 4: ...hould 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 calculation made according to...

Page 5: ...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 in...

Page 6: ...olts 7 Secure rain flashing to wall and caulk across entire length of top see Figure 2 8 For additional mounting rigidity the return air and supply air frames or collars can be drilled and screwed or...

Page 7: ...Entrance Air Panel Drain Heater Disconnect Entrance 4 Pitch Inlet Access Panel Economizer Rain Hood Low Voltage Electrical Air Intake Hood C Breaker High Voltage Economizer Controls H A D J C I 2 13...

Page 8: ...TOP TOP WALL OF CAULKING ALONG PANEL FOAM AIR SEAL WALL STRUCTURE OPENING TOP FLASHING AT TIME OF INSTALLATION THE SIDE MOUNTING FLANGES AND UNDER DUCT Wall Opening and Hole Location View Right Side...

Page 9: ...CLEARANCE ON ALL HEATER ACCESS TOP FLASHING AT TIME OF INSTALLATION THE SIDE MOUNTING FLANGES AND UNDER SILICONE CAULKING BE PLACED BEHIND IS ON OPPOSITE LEFT SIDE OPENING CONTROLS AND HEATER ACCESS...

Page 10: ...1 4 29 3 4 32 12 5 1 2 2 NOTES WALL STRUCTURE 1 SUPPLY AIR IT IS RECOMMENDED THAT A BEAD OF OPENING Right Side View RAIN FLASHING SILICONE CAULKING BE PLACED BEHIND RECOMMENDED 1 CLEARANCE FROM THE SI...

Page 11: ...ls This is required for the first 3 of ducting It is important to insure that the 1 4 minimum spacing is maintained at all points Failure to do this could result in overheating the combustible materia...

Page 12: ...TURN AIR SUPPLY AIR FACTORY SUPPLIED RAIN FLASHING SUPPLY AIR MIS 548 A SIDE VIEW I A C K E 1 000 B 1 000 SUPPLY DUCT OVER FRAME INTERIOR FINISHED WALL ALL AROUND DUCT FRAMING MATERIAL EXTERIOR FINISH...

Page 13: ...sure that there will be no nuisance tripping due to the momentary high starting current of the compressor motor The disconnect access door on this unit may be locked to prevent unauthorized access to...

Page 14: ...or 3 Replace filter 4 Press Reset button 5 Verify filter light is off 6 Replace filter door 7 Turn on unit power For units equipped with economizer 1 Turn off unit power 2 Remove hood cover 3 Remove m...

Page 15: ...t composition during multiple leaks and recharges R 410A refrigerant is close to being an azeotropic blend it behaves like a pure compound or single component refrigerant The remaining refrigerant cha...

Page 16: ...ll models covered by this manual The compressor control module is an anti short cycle lockout timer with high and low pressure switch monitoring and alarm relay output Adjustable Delay on Make and Del...

Page 17: ...losed Dry Contacts Alarm Signal 4 11 Filter Switch Normally Closed Dry Contacts Alarm Signal 5 12 Blade Switch Delay Relay Normally Closed Dry Contacts Economizer Only 8 13 Blade Switch Delay Relay No...

Page 18: ...this refrigerant charge quantity The pressure table on the following page shows nominal pressures for the units Since many installation specific situations can affect the pressure readings this inform...

Page 19: ...38 587 80 67 Low Side High Side 125 331 128 355 130 379 133 404 136 430 138 457 140 485 143 513 145 542 147 572 148 602 85 72 Low Side High Side 129 343 132 367 135 392 138 418 141 445 143 473 145 502...

Page 20: ...2 34 34 58 84 110 50 50 60 90 125 8 8 6 4 2 10 10 10 8 6 58 58 26 52 60 60 30 60 6 6 10 6 10 10 10 10 H60AA A00 A0Z A05 A10 A15 A20 230 208 1 1 1 1 1 or 2 1 or 2 38 38 60 86 112 60 60 60 90 125 8 8 6...

Page 21: ...1565 1820 1770 1600 1540 1970 1885 1400 1315 0 3 835 800 1180 1100 860 850 1735 1665 1530 1450 1720 1605 1500 1425 1895 1800 1300 1220 0 4 750 720 1080 1010 800 785 1615 1565 1425 1350 1575 1500 1375...

Page 22: ...HWA02 A10LB X EHWA03 A05LB X EHWA03 A10LB X EHWA03 A15LB X EHW4TA A05L X X X EHWA05 A10LB X X X EHWA05 A15LB X X X Circuit Breakers WMCB Pull Disconnects WMPD WMCB 03A X WMCB 05A X WMCB 08A X X WMCB 0...

Page 23: ...osed Dry Contacts MV Signals Blade Switch Fail Alarm 8 on Relay Board 8 13 Blade Switch Delay Relay Normally Closed Dry Contacts MV Signals Blade Switch Fail Alarm 9 on Relay Board 9 14 Occupied Signa...

Page 24: ...h Delay Relay Normally Closed Dry Contacts Not Used on MC 8 13 Blade Switch Delay Relay Normally Closed Dry Contacts Not Used on MC 9 14 Occupied Signal Input Econ Emergency Open Open Blade 100 Unit R...

Page 25: ...Contacts Not Used 4 11 Filter Switch Normally Closed Dry Contacts Not Used 5 12 Blade Switch Delay Relay Normally Closed Dry Contacts Not Used 8 13 Blade Switch Delay Relay Normally Closed Dry Contact...

Page 26: ...2 13 4 8 18 6 33 20 104 14 109 2 110 16 111 11 112 3 113 9 117 7 118 21 116 5 121 19 136 Dual Can Capacitor LOUT 5 ECON LOUT DAMPER 128 103 B 128 3 Black White Light 113 124 Terminal Black Black Black...

Page 27: ...NC 3 2 1 NO 12 PIN PLUG COM DAMPER MOTOR DAMPER BLADE IN RED BLACK BLACK IS SHOWN WITH THE CONTACT POSITION IAQ AUX1 O Y2 I 8 S BUS ACT 24V ACT RED YELLOW IAQ R MAT PLUG PLUG PLUG PLUG BROWN WHITE GR...

Page 28: ...Vent Plug Pin 2 on Vent Plug Pin 5 on Vent Plug Pin 7 on Vent Plug Pin 10 on Vent Plug Time Delay Relay T1 T2 Y HPC Lo Press Sw LPC LPC Alarm Relay ALR CC Comp Control Module R MV Controller C 4 5 W...

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