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INSTALLATION INSTRUCTIONS
Wall Mount Heat Pump
W42HC-A
W42HC-B
W42HC-C
W42HCDA
W42HCDB
W42HCDC
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
11EER WH Series
Models:
W48HC-A
W48HC-B
W48HC-C
W48HCDA
W48HCDB
W48HCDC
W60HC-A
W60HC-B
W60HC-C
W60HCDA
W60HCDB
W60HCDC
Manual:
2100-711F
Supersedes: 2100-711E
Date:
1-21-21
Page
1 of 45
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Table of Contents
Troubleshooting
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Summary of Contents for Bard W42HC-A
- Page 1 Wall Mount Heat Pump Models: W42HC-A W48HC-A W60HC-A W42HC-B W48HC-B W60HC-B W42HC-C W48HC-C W60HC-C W42HCDA W48HCDA W60HCDA W42HCDB W48HCDB W60HCDB W42HCDC W48HCDC W60HCDC Bard Manufacturing Company, Inc. Manual: 2100-711F Bryan, Ohio 43506 Supersedes: 2100-711E Date: 1-21-21 www.bardhvac.com Page 1 of 45...
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Page 2: Table Of Contents
CONTENTS Getting Other Information and Publications ..3 Heating ............. 24 Wall Mount General Information ......4 Balanced Climate Mode ........ 25 Air Conditioner Wall Mount Model Nomenclature ..4 Defrost Cycle ............. 25 Shipping Damage ..........4 Low Pressure Switch Bypass Operation ..... 26 General ............... -
Page 3: Getting Other Information And Publications
Figure 22 Defrost Control Board ......26 Table 12 Cooling Pressure – Balanced Climate Figure 23 Motor Connections ......30 Airflow ..........34 Figure 24 Motor Connections ......31 Table 13 Electrical Specifications W**HC ... 35 Figure 25 Fan Blade Setting ....... 32 Table 14 Recommended Airflow ...... -
Page 4: Wall Mount General Information
WALL MOUNT GENERAL INFORMATION Air Conditioner Wall Mount Model Nomenclature – MODEL SERIES CONTROL MODULES (See Spec. Sheet S3584) CAPACITY 42 – 3½ Ton COIL OPTIONS 48 – 4 Ton X – Standard 60 – 5 Ton 1 – Phenolic Coated Evaporator 2 –... -
Page 5: Duct Work
5/8". Any grille that meets with 5/8" louver criteria may be used. It is recommended that Bard Return Air Grille Kits RG5 or RFG5 be installed when no return duct is used. Contact distributor or factory for ordering information. -
Page 6: Switching Filter Sizes
FIGURE 3 2. Locate the filter support brackets and remove the four (4) screws holding them to the top of the Removing Second Filter control panel (see Figure 6). FIGURE 6 Remove Four Screws 3. Reverse the order for new filter installation. 3. -
Page 7: Fresh Air Intake
Fresh Air Intake 6. Install the right 2" filter first followed by the left filter (see Figures 9 and 10). All units are built with fresh air inlet louvers punched NOTE: When installing new filters, make sure that in the side grilles. airflow arrows on filters point up. -
Page 8: Installation
Inspect wall surfaces Bard recommends at least 2' between solid objects for obstructions that could hinder unit installation and return grilles or registers. Ductwork may be used to... -
Page 9: Free Blow Applications
5/8". It is recommended that a and return ducts must be properly sized for the design Bard Return Air Grille Kit is installed that is designed airflow requirement of the equipment. Air Conditioning specifically for the wall mount product. Contact the Contractors of America (ACCA) is an excellent guide local Bard distributor or visit www.bardhvac.com for... -
Page 10: Wall Preparation
• Small straight (thermostat) screwdriver 3. Position the wall mount unit close to the wall surface where it will be installed. Install rain • Tape measure flashing at the top of the unit facing the wall by • Leveling device hooking the hem bend into the rear bend of the unit top (see Figure 14). -
Page 11: Figure 12 Vent Installation/Removal Clearance Required
TABLE 2 Minimum Clearances Required to Combustible Materials Model Supply Air Duct (1st 3') Cabinet W42HC W48HC 1/4" 0" W60HC FIGURE 12 Vent Installation/Removal Clearance Required OBJECT OR WALL VENTS CAN BE INSTALLED FROM EITHER SIDE OF UNIT. " 2" 45"... -
Page 12: Figure 13 Unit Dimensions
FIGURE 13 Unit Dimensions Supply Return Width Depth Height W42HC 42.00 25.52 84.75 9.88 29.88 15.88 29.88 43.88 12.63 39.06 30.06 43.25 26.94 55.59 52.59 8.82 43.00 1.44 16.00 1.88 W48HC W60HC 42.00 25.52 92.88 9.88 29.88 15.88 29.88 43.88 12.63 45.00 30.06 49.25 35.06 61.72 58.72 8.82 43.00 1.44... -
Page 13: Figure 14 Mounting Instructions
FIGURE 14 Mounting Instructions SEAL WITH BEAD UNITS REQUIRED DIMESIONS OF CAULKING ALONG REQUIRED DIMESIONS TO ENTIRE LENGTH OF MAINTAIN 1/4" MIN. CLEARANCE 30 1/2 10 1/2 6 1/4 1 1/4 29 3/4 16 1 7/8 TOP. FROM COMBUSTIBLE MATERIALS W42HC-W48HC RAIN FLASHING UNITS... -
Page 14: Figure 15 Electric Heat Clearance
FIGURE 15 Electric Heat Clearance NOTE 1: SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR WALL MOUNTED UNIT SHOWING 1/4" CLEARANCE TO COMBUSTIBLE SURFACES. WARNING Fire hazard. Maintain minimum 1/4" clearance between the supply air duct and combustible materials in the first 3' of ducting. -
Page 15: Figure 16 Wall Mounting Instructions
FIGURE 16 Wall Mounting Instructions See Figure 14 Mounting Instructions FACTORY SUPPLIED RAIN FLASHING. WALL STRUCTURE MOUNT ON UNIT BEFORE INSTALLATION SUPPLY AIR OPENING RETURN AIR OPENING WOOD OR STEEL SIDING BOTTOM MOUNTING BRACKET. MOUNT ON WALL BEFORE INSTALLING UNIT. CONCRETE BLOCK WALL INSTALLATION WOOD FRAME WALL INSTALLATION SIDE VIEW... -
Page 16: Figure 18 Common Wall Mounting Installations
FIGURE 18 Common Wall Mounting Installations SUPPLY DUCT MAY BE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN RAIN RAIN FLASHING RAFTERS FLASHING RAFTERS FINISHED CEILING SURFACE SUPPLY AIR DUCT SUPPLY AIR DUCT OPENING WITH GRILLE FINISHED CEILING SURFACE RETURN AIR RETURN AIR OPENING WITH... -
Page 17: Wiring - Main Power
Wiring – Main Power All models are suitable only for connection with copper wire. Each unit and/or wiring diagram will be marked “Use Copper Conductors Only”. These instructions WARNING must be adhered to. Refer to the National Electrical Code (NEC) for complete current carrying capacity data on the various insulation grades of wiring material. -
Page 18: Wiring - Low Voltage
DDC Connections the upper control panel where the connections are made. (The field wire shield can be removed for wire 11 terminal is filter switch, common contact on installation.) If field power is supplied to the right of auxiliary terminal strip (F Control option only) side of the unit, the low voltage wires can be run under 12 terminal is filter switch, normally open contact on the field wire shield to access the low voltage terminal... -
Page 19: Ventilation Features
Discharge Air Sensor During dehumidification, the indoor blower speed is reduced to help with the humidity removal. A humidity The discharge air sensor provides a temperature reading sensing thermostat or humidistat is required to control of the supply air leaving the unit. The sensor is a 10K dehumidification operation. -
Page 20: Table 4 Wall Thermostats
TABLE 4 Wall Thermostats Part Number Predominate Features 8403-060 3 stage Cool; 3 stage Heat; Electronic Programmable/Non-Programmable; HP or Conventional; Auto or Manual (1120-445) changeover; Dehumidification Output 8403-095 1 stage Cool, 2 stage Heat – Heat Pump; 1 stage Cool, 1 stage Heat – Conventional; Programmable/Non- (T4 Pro) Programmable Electronic;... -
Page 21: Figure 20 Thermostat Connections
FIGURE 20 Thermostat Connections Completestat Model #CS9B-THOA or Model #CS9BE-THOA W1/E Thermostat W1/E YO/D Bard #8403-060 Optional CO2 Controller Bard Part #8403-067 24VAC CO2 OUT TEMP-OUT Unit Low B/W1 Voltage Term. Strip 12-Pin Vent Plug ALL VENT OPTIONS PLUG IN HERE If not equipped with a ventilation option to plug in, a jumper plug must be installed. -
Page 22: Figure 21 Thermostat Connections
Thermostat Connections Units With Dehumidification 8403-038 Mechanical Humidistat T4 Pro 8403-095 T6 Pro 8403-090 or 8403-092 8403-047 Electronic Humidistat Optional CO2 Controller Bard Part #8403-067 24VAC CO2 OUT TEMP-OUT Unit Low B/W1 Voltage Term. Strip 12-Pin Vent Plug ALL VENT OPTIONS PLUG IN HERE If not equipped with a ventilation option to plug in, a jumper plug must be installed. -
Page 23: Start Up
All W**AC wall-mounted air conditioner series models Topping Off System Charge are supplied with a remote reset for the high and low If a leak has occurred in the system, Bard pressure switch. If tripped, the pressure switch may be Manufacturing recommends reclaiming, evacuating reset by turning the thermostat off then back on again. -
Page 24: Phase Monitor
Service Hints However, three phase compressors will rotate in either direction depending upon phasing of the power. 1. Caution owner/operator to maintain clean air filters Since there is a 50-50 chance of connecting power at all times and also not to needlessly close off in such a way as to cause rotation in the reverse supply and return air registers. -
Page 25: Balanced Climate Tm Mode
Balanced Climate™ is a great comfort feature that can system in the defrost mode. easily be applied under any normal circumstances. If the Bard air conditioning system is being set up During the defrost mode, the refrigerant cycle switches in a typical environment where 72°F is the lowest... -
Page 26: Low Pressure Switch Bypass Operation
In order to terminate the defrost test, the SEN JMP service technician to override or speed up this timing jumper must be removed. If left in place too long, the period and shorting out the SPEEDUP terminals for a compressor could stop due to the high pressure control few seconds can do this. -
Page 27: High Pressure Switch Operation
High Pressure Switch Operation The control has a built-in lockout system that allows the unit to have the high pressure switch trip up to two times in 1 hour and only encounter a “soft” lockout. A “soft” lockout shuts the compressor off and waits for the pressure switch to reset, which at that point then allows the compressor to be restarted as long as the 5-minute short cycle timer has run out. -
Page 28: Service
SERVICE Solid State Heat Pump Control NOTE: If there was no power to 24 volt transformer, Troubleshooting Procedure the compressor and outdoor fan motor will not start for 5 minutes. This is because of the 1. NOTE: A thorough understanding of the defrost compressor short cycle protection. -
Page 29: Checking Temperature Sensor Outside Unit Circuit
Checking Temperature Sensor Outside 3. Check resistance reading to chart of resistance. Use sensor ambient temperature. (Tolerance of part Unit Circuit is ± 10%.) 1. Disconnect temperature sensor from board and 4. If sensor resistance reads very low, sensor is from outdoor coil. -
Page 30: Troubleshooting Nidec Selectech Series Ecm Motors
“Continuous Fan” only problem identified. on the “G” terminal. NOTE: Bard Models PA13242; PA13302; PA13362-A, -B; PA13422-A, -B, -C; PA13482-A, -B, -C; PA13602-A, -B, -C 2. If the system is excessively noisy, does not appear contain the X13-Series Motors. -
Page 31: Model Selectech Communication Diagnostics
TROUBLESHOOTING GE X13-SERIES ECM2.3 ™ MOTORS CONT’D. Model SelecTech Communication Diagnostics B. If the motor has proper high voltage as identified above (If the Motor Is Not Running 2. Initiate a demand from the thermostat and check the Model X13 Communication Diagnostics The SelecTech motor is communicated through 24VAC #1), proper low voltage to a programmed voltage between the common and the appropriate motor... -
Page 32: Fan Blade Setting Dimensions
Fan Blade Setting Dimensions R-410A Refrigerant Charge Shown in Figure 25 is the correct fan blade setting This unit was charged at the factory with the quantity of for proper air delivery across the outdoor coil. Refer to refrigerant listed on the serial plate. AHRI capacity and Table 10 for unit specific dimension. -
Page 33: Table 11A Cooling Pressure - Standard Airflow
TABLE 11A Cooling Pressure – Standard Airflow Air Temperature Entering Outdoor Coil °F Return Air Temp Model Pressure (DB/WB) Low Side 75/62 High Side Low Side W42HC 80/67 High Side Low Side 85/72 High Side Low Side 75/62 High Side Low Side W48HC 80/67... - Page 34 TABLE 12 Cooling Pressure – Balanced Climate Airflow Air Temperature Entering Outdoor Coil °F Return Air Temp Model Pressure (DB/WB) Low Side 75/62 High Side Low Side W42HC 80/67 High Side Low Side 85/72 High Side Low Side 75/62 High Side Low Side W48HC 80/67...
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Page 35: Table 13 Electrical Specifications W**Hc
TABLE 13 Electrical Specifications − W**HC Series Single Circuit Multiple Circuit Maximum Minimum Rated Volts & Field External Field Power Ground Maximum Field Model Circuit Minimum Phase Power Fuse or Wire Size Wire Size External Power... -
Page 36: Setting Unit Airflow
Orange Wire thermostat or other controlling device. Each speed tap w/Black Stripe is programmed by Bard at the factory to different motor torque settings (see Figure 27). Manual 2100-711F Page 36 of 45... -
Page 37: Speed Tap 1 - Vent/Blower Only
TABLE 15 Blower Speeds for Unit Operational Modes Thermostat Inputs – 24VAC Speed Taps Unit Compressor Blower Speed Operation Operation B/W1 W2 W3 3-4-5 Blower Only Vent/Blower Only Balanced Climate Cooling Balanced Climate Full Load Cool Lo/Med/Hi Balanced Climate Balanced Climate Heat Pump Heating Full Load Heat Pump Lo/Med/Hi... -
Page 38: Dirty Filter Switch Adjustment
characteristics. See Dirty Filter Switch Adjustment Switch), begin restricting the air filter of the unit for instructions on how to make proper switch using a piece of cardboard under the filters until adjustments. the switch trips and the light comes on. If the filter is restricted by 75% (or desired restriction 3. -
Page 39: Figure 30 Adjusting Filter Switch
5. Replace the upper front panel and repeat Steps 7. Install the outer control panel cover. This 1-3. Continue to make adjustments described in completes the adjustment. Step 4 until the desired restriction is obtained. 6. Remove the restriction and reset the filter switch. Replace the switch cover once adjustment is complete. -
Page 40: Table 16 Indoor Blower Performance
TABLE 16 Indoor Blower Performance Default LO Cooling & Optional MED Balanced Climate Optional HI Cooling Heating/Ventilation Cooling & Heating E.S.P. Speed & Heating Speed Speed Speed (In. H Dry Coil Wet Coil Dry Coil Wet Coil Dry Coil Wet Coil Dry Coil Wet Coil 0.00... -
Page 41: Table 17 Maximum Esp Electric Heat Only
TABLE 17 Maximum ESP of Operation Electric Heat Only Model W42HC, W48HC W60HC Outlet FRONT FRONT Speed High High -A0Z -A04 -A05 -A10 -A15 -A20 -B0Z -B05 -B06 -B09 -B15 -B18 -C0Z -C05 -C09 -C15 Values shown are for units equipped with standard 1" throwaway filter or 1"... -
Page 42: Table 19 Vent And Control Options
TABLE 19 Vent and Control Options Part Number Description CMC-32 Start Kit (230V 1-Phase) CMC-33 Dirty Filter Switch Kit CMC-35 Alarm Relay CMC-38 Crankcase Heater – 230V CMC-39 Crankcase Heater – 460V CMH-35 Low Ambient Control – On/Off (LAC) CMH-36 Outdoor Thermostat (ODT) Low Ambient Control and Outdoor Thermostat –... -
Page 43: Table 20 Optional Accessories
TABLE 20 Optional Accessories EHW3HC-A04 EHW3HC-A05 EHW3HC-A15 EHW3HC-B05 EHW3HC-B09 EHW3HC-B15 EHW3HC-C05 EHW3HC-C15 EHW3HCDC09 EHW4HC-A04 EHW4HC-A05 EHW4HC-A15 EHW4HC-A20 EHW4HC-B09 Heater Kits EHW4HC-B15 EHW4HC-B18 EHW4HC-C05 EHW4HC-C09 EHW4HC-C15 EHW6HC-A15 EHW6HC-A20 EHW6HC-B09 EHW6HC-B15 EHW6HC-B18 EHW6HC-C09 EHW6HCDA05 EHW6HCDA10 WMCBC-05B WMCBC-06B Circuit WMCBC-06C Breaker (WMCB) WMCBC-07A WMCBC-08A WMCBC-09A Manual 2100-711F... - Page 44 GRAPH 1 W42HC FAD-NE5 W/O Exhaust Ventilation Delivery GRAPH 2 W48HC FAD-NE5 W/O Exhaust Ventilation Delivery Manual 2100-711F Page 44 of 45...
- Page 45 GRAPH 3 W60HC FAD-NE5 W/O Exhaust Ventilation Delivery Manual 2100-711F Page 45 of 45...
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