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Manual 2100-647 

Page 

18 of 28

SERVICE

FIGURE 7

Fan Blade Setting

TABLE 2

Fan Blade Dimension

REMOVAL OF FAN SHROUD

1.  Disconnect all power to the unit.

2.  Remove the screws holding both grilles, one on 

each side of unit, and remove grilles.

3.  Remove nine (9) screws 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 needed.

7.  Reverse steps to reinstall

.

R-410A REFRIGERANT CHARGE

This unit was charged at the factory with the quantity 
of refrigerant listed on the serial plate.  AHRI capacity 
and efficiency ratings were determined by testing with 
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 information should only be used by 
certified technicians as a guide for evaluating proper 
system performance.  They shall not be used to adjust 
charge.  If charge is in doubt, reclaim, evacuate and 
recharge the unit to the serial plate charge.

"A"

AIRFLOW

MIS-1724

Model

Dimension

A

H24

1.00"

H36

1.25"

H42
H48
H60

1.75"

FAN BLADE SETTING DIMENSIONS

The correct fan blade setting for proper air delivery 
across the outdoor coil is shown in Figure 7.  Refer to 
Table 2 for unit specific dimension.

Any service work requiring removal or adjustment in the 
fan and/or motor area will require that the dimensions 
below be checked and blade adjusted in or out on the 
motor shaft accordingly.

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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