IT IS THE RESPONSIBILITY OF INSTALLER TO KNOW AND UNDERSTAND ALL OF THESE REQUIREMENTS. FAILURE TO DO SO COULD CREATE A HAZARD RESULTING IN PROPERTY DAMAGE, BODILY INJURY, OR DEATH. Bard Manufacturing Company, Inc. Manual : 2100-587D Bryan, Ohio 43506 Supersedes: 2100-587C...
CONTENTS Page Page 19. Manifold Pressure Adjustment ......27 Getting Other Information and Publications ...4 20. Checking Gas Input Rate ........ 27 Wall Mount Gas/Electric General Information ..5 21. Standard Orifice Sizing and WG Series Model Nomenclature ......5 High Altitude Derate ........29 Ventilation Options ..........
WALL MOUNT GAS/ELECTRIC GENERAL INFORMATION MODEL NUMBER NOMENCLATURE – REVISION MODEL VENT COLOR CONTROL OPTIONS Wall Mount X = Beige See Table Below (See Table page 6) Gas/Electric (Standard) VOLTAGE 4 = Buckeye Gray A = 230/208-60-1 COOLING COIL OPTIONS B = 230/208-60-3 CAPACITY X = Standard...
AIR CONDITIONING MODULE OPTIONS Factory Installed Field Installed Code Part CMA-28 STD = Standard equipment Compressor control module has adjustable 30 second to 5 minute delay-on-break timer. On initial power up, or any time the power is interrupted, the delay-on-make will be 2 minutes plus 10% of the delay-on-break setting.
All internal wiring is complete. Any grille that meets with the 5/8” louver criteria may be used. It is recommended that Bard Return These instructions and any instructions packaged with Air Grille or Return Filter Grille be installed when any separate equipment required to make up the entire no return duct is used.
5. TRANSPORTATION DAMAGE 8. MOUNTING THE UNIT All units are packed securely in shipping container. 1. These units are secured by wall mounting brackets All units should be carefully inspected upon arrival which secure the unit to the outside wall surface at both sides.
FIGURE 3 Combustible Clearance WARNING A minimum of 1" clearance must be maintained between the supply air duct and combustible materials. This is required for the first 3' of ducting. It is important to insure that the 1" minimum spacing is maintained at all points. Failure to do this could result in overheating the combustible material and may result in a fire causing damage, injury or death.
TABLE 2 9. CLEARANCES Minimum Installation Clearances Minimum clearances, as specified in Table 2, must be maintained from adjacent structures to provide Outlet Duct 1" first 3' adequate fire protection, adequate combustion air and (from combustible materials) room for service personnel. Vent Terminal While minimum clearances are acceptable for safety * 17"...
11. OPTIONAL VERTICAL VENTING 10. VENT TERMINAL AND COMBUSTION AIR INLET HOOD With the optional vertical venting kit (VVK-5), this unit may be vented vertically through a roof or overhang. The vent terminal is shipped in the burner The kit includes a stainless steel transition drain tee, compartment (see Figure 7).
12. VENT RESIZING INSTRUCTIONS 13. FRESH AIR INTAKE All units are built with fresh air inlet slots punched in When an existing furnace is removed from a venting the service panel. system servicing other appliances, the venting system is likely to be too large to properly vent the remaining The default unit is built with blank-off plates attached appliances.
15. WIRING – MAIN POWER Electrical Grounding When installed, the furnace must be electrically grounded in accordance with local codes or in the WARNING absence of local codes, with the National Electrical Code, ANSI/NFPA 70, or Canadian Electrical Code, CSA22.1, latest edition. Use a copper wire from For your personal safety, turn off electric green ground wire on the furnace to a grounded power at service entrance panel before...
FIGURE 9 Installation of Flexible Conduit Direct Digital Controls (DDC) 16. WIRING – LOW VOLTAGE WIRING For total and proper control using DDC, a total of five Low Voltage Connection controlled outputs are required (four if no ventilation is These units use a 24 volt AC low voltage circuit. installed).
FIGURE 10A Low Voltage Wiring – No Vent Low Voltage Wiring - No Ventilation Package Thermostat Subbase Thermostat Part #8403-058 Thermostat W1/E D/YO Part #8403-060 Unit 24V Terminal Block Factory Installed Jumper Unit Control Panel MIS-2330 D Manual 2100-587D Page 21 of 58...
FIGURE 10B Low Voltage Wiring – Commercial Room Ventilator Low Voltage Wiring - Multi-position Commercial Room Ventilator Thermostat Subbase Thermostat Part #8403-058 Thermostat W1/E D/YO Part #8403-060 (MUST BE CONFIGURED FOR HEAT/COOL) Unit 24V Terminal Block Factory Installed Jumper Unit Control Panel STEP CONTROL ASSEMBLY...
FIGURE 10C Low Voltage Wiring – Economizer Low Voltage Wiring - EIFM ECONOMIZER Thermostat Subbase Thermostat Part #8403-058 Thermostat W1/E D/YO Part #8403-060 Unit 24V Terminal Block Factory Installed Jumper Unit Control Panel WGSEIFM-5 BLACK BLUE PINK WIRES YELLOW FROM PURPLE PLUG ORANGE...
Part #8403-058 Thermostat W1/E D/YO Part #8403-060 Unit 24V Terminal Block Factory Installed Jumper Unit Control Panel WGSERV-*5 Optional CO2 Controller Bard Part #8403-067 24VAC BLUE BLACK/WHITE CONTROL BLUE WIRES C02 OUT BROWN/WHITE FROM PLUG ORANGE TEMP-OUT MUST INSTALL JUMPER FOR 8403-058 OR OTHER THERMOSTAT THAT DOES NOT HAVE OCCUPANCY OUTPUT.
18. GAS SUPPLY AND PIPING 8. Refer to Table 6 for Gas Pipe Sizes for natural gas. If more than one appliance is supplied from a single line size, capacity must equal or exceed the General Recommendations combined input to all appliances, and the branch 1.
6. Slowly open 1/8" NPT manual shut off valve PROPANE (LP) GAS CONVERSION leading to manometer. This unit may be converted in the field for 7. Read manifold pressure on manometer. use with Propane (LP) gas. Propane gas 8. Adjust manifold pressure by turning gas control conversion kit number WGCK-1 is designed regulator adjusting screw clockwise to increase for conversions of units installed from...
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Natural Gas Input Rate Example: Natural gas heating value (BTU/cu. ft.) can vary If gas water heater, dryer, two range burner pilots significantly. Before starting natural gas input check, and one oven pilot were left on, allow: obtain the gas heating value at the location from local Water heater pilot 1,000 BTU per hour supplier.
21. STANDARD ORIFICE SIZING AND burned in the furnace must also be reduced. This is called derating. This unit must be derated when HIGH ALTITUDE DERATE installed at altitudes greater than 6,000' above sea level. A high altitude pressure switch must also be This furnace is shipped with fixed gas orifices for use installed for operation above 6,000'.
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All Natural Gas factory orifice sizing and standard input ratings based on nominal 1025 BTU/cu ft gas and sea level conditions All other orifice sizes shown are available as individual items. See orifice tables below for part numbers and number required. Bard Part No. Orifice Size (mm) Orifice Diameter No.
22. CONVERSION OF GAS INPUT BTUH 2. Set balancing dampers in supply duct system. FROM HIGH TO LOW RATING 3. Check duct work for obstructions or leaks. All the derated WG series units are produced with 4. Make sure filters are clean and in place. maximum BTUH input orifices installed.
FIGURE 13 Access Internal Filter FILTER FILTER SERVICE DOOR MIS-3237 24. FILTERS During routine operation of the unit with no power interruptions, the compressor will operate on demand A 2" thick throwaway filter is supplied with each unit. with no delay. This filter is installed by removing the filter access panel (see Figure 13).
24. PHASE MONITOR Alarm Output Alarm terminal is output connection for applications All units with three phase scroll compressors are where alarm signal is desired. This terminal is powered equipped with a three phase line monitor to prevent whenever compressor is locked out due to HPC or LPC compressor damage due to phase reversal.
27. LIGHTING AND SHUTDOWN INSTRUCTIONS FIGURE 14 Lighting and Shutdown Instruction Label BEND & PEEL “HERE” TO REMOVE LABEL LINER FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life.
FIGURE 15 28. SERVICE AGENCY PROCEDURES Top View of Gas Control CAUTION Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after servicing. WARNING Follow these procedures before inspecting MIS-165 furnace.
Routine Maintenance WARNING 1. Air Filters – Check the condition at least monthly when the unit is in use, and replace as necessary. Disconnect electrical power before servicing 2. Lubrication Requirements – The indoor circulating unit. Failure to do so could result in electrical air blower motor and outdoor circulating air fan shock or death.
31. SEQUENCE OF OPERATION – top of the switch. See Figure 16 for additional HEATING information. On a call for heat from the thermostat, the induced 32. SEQUENCE OF OPERATION – draft blower is energized. Once sufficient draft is COOLING established, the pressure switch contacts close and the ignition system is energized.
FIGURE 17 Furnace Control Board and Blower Control 33. INDOOR BLOWER OPERATION temperature rise across the gas heat exchanger at the The indoor blower motor is a constant CFM variable mid-point of the allowable rise range automatically. speed direct drive motor. The motor is programmed to respond to individual thermostatic inputs that There are not adjustments that can be made in the will determine the speed/airflow at which the motor...
START UP Three Phase Scroll Compressor Start Up Information These units require R-410A refrigerant and Polyol Ester oil. Scroll compressors, like several other types of compressors, will only compress in one rotational Application direction. Direction of rotation is not an issue with single phase compressors since they will always start 1.
TROUBLESHOOTING COMPRESSOR SOLENOID FAN BLADE SETTING DIMENSIONS (See Sequence of Operation on page 37 for function.) Shown below are the correct fan blade setting A nominal 24-volt direct current coil activates the dimensions for proper air delivery across the outdoor internal compressor solenoid.
™ Troubleshooting ECM Motors CAUTION: Symptom Cause/Procedure • Air noise • High static creating high blower speed? Disconnect power from unit before removing or - Is airflow set properly? replacing connectors, or servicing motor. To avoid - Does removing filter cause blower to slow electric shock from the motor’s capacitors, disconnect down? Check filter - Use low-pressure drop filter...
Replacing ECM Control Module Verify that the replacement control is correct for the application. Refer to the manufacturer’s authorized To replace the control module for the GE variable-speed indoor blower replacement list. Using the wrong control will result in motor, take the following steps: improper or no blower operation.
34. PRESSURE SERVICE PORTS High and low pressure service ports are installed on all units so that the system operating pressures can be observed. Table 12 outlines expected pressures at various indoor and outdoor temperatures. TABLE 12 Cooling Pressures (All Temperatures °F) High Capacity Cooling Air Temperature Entering Outdoor Coil °F Return Air...
36. LOW-NOX BURNER ASSEMBLY “N” 35. R-410A REFRIGERANT CHARGE SUFFIX MODELS ONLY – U.S. This unit was charged at the factory with the quantity INSTALLATIONS ONLY of refrigerant listed on the serial plate. AHRI capacity and efficiency ratings were determined by testing with Natural Gas Models Only this refrigerant charge quantity.
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WG4S2-A 30+10/370 WG5S2-A 40+10/440 Wire Identification numbers USE COPPER CONDUCTORS for Bard use only. SUITABLE FOR AT LEAST 75° C Factory Field Optional IF ANY ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A...
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INDUCED DRAFT 14 12 10 6 2 13 3 1 Indoor Blower Motor BLOWER RELAY Ladder Diagram Factory Optional High Voltage Wires Connect if Option Not Low Voltage 4085-155 Used WG3S2-A, WG4S2-A, WG5S2-A 208/230/60/1 Manual 2100-587D Page 48 of 58...
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WG4S2-A 30+10/370 WG5S2-A 40+10/440 Wire Identification numbers USE COPPER CONDUCTORS for Bard use only. SUITABLE FOR AT LEAST 75° C Factory Field Optional IF ANY ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A...
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INDUCED DRAFT 14 12 10 6 2 13 3 1 Indoor Blower Motor BLOWER RELAY Ladder Diagram Factory Optional High Voltage Wires Connect if Option Not Low Voltage 4085-157 Used WG3S2-A, WG4S2-A, WG5S2-A 208/230/60/1 Manual 2100-587D Page 50 of 58...
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10/370 SUITABLE FOR AT LEAST 75° C WG5S2-B 10/370 Wire Identification numbers for Bard use only. Factory Field Optional IF ANY ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A...
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230/208-60-3 5 Pin Plug for Indoor Blower Motor Power Source L1 L2 Outdoor Compressor Compressor Contactor Capacitor Fan Motor Low Ambient INDUCED DRAFT INDUCED DRAFT Control (OPT.) BLOWER MOTOR BLOWER RELAY Crankcase Heater Aux. Phase Monitor Use for 208V Operation Transformer 24VAC FURNACE...
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PIN PLUG FOR INDOOR BLOWER MOTOR INTEGRATED FURNACE CONTROL VOLTAGE STRIP BROWN YELLOW PRIMARY LIMIT 16 PIN PLUG FOR INDOOR BLOWER MOTOR FUSE PURPLE FLAME ROLLOUT 10 11 RED/WHITE GRAY SPARK IGNITOR 4 5 6 ORANGE 1 2 3 RED/ BLACK/WHITE WHITE SPEED...
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230/208-60-3 5 Pin Plug for Indoor Blower Motor Power Source L1 L2 Outdoor Compressor Compressor Contactor Capacitor Fan Motor Low Ambient INDUCED DRAFT INDUCED DRAFT Control (OPT.) BLOWER MOTOR BLOWER RELAY Crankcase Heater Aux. Phase Monitor Use for 208V Operation Transformer 24VAC FURNACE...
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15/370 WG4S USE COPPER CONDUCTORS Wire Identification numbers WG4S2-C 15/370 WG5S SUITABLE FOR AT LEAST 75° C for Bard use only. WG5S2-C 15/370 Factory Field Optional IF ANY ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE WIRES CONNECT REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A High Voltage TEMPERATURE RATING OF AT LEAST 105°...
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460-60-3 5 Pin Plug for Indoor Blower Motor Power Source L1 L2 Fuse Transformer Fuse Outdoor Compressor Compressor Contactor Capacitor Fan Motor Low Ambient INDUCED DRAFT INDUCED DRAFT Control (OPT.) BLOWER MOTOR BLOWER RELAY Crankcase Heater Aux. Phase Monitor Use for 208V Operation Transformer 24VAC FURNACE...
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WG4S USE COPPER CONDUCTORS Wire Identification numbers WG4S2-C 15/370 WG5S SUITABLE FOR AT LEAST 75° C for Bard use only. WG5S2-C 15/370 Factory Field Optional IF ANY ORIGINAL WIRE AS SUPPLIED WITH THE APPLIANCE MUST BE REPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL HAVING A...
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460-60-3 5 Pin Plug for Indoor Blower Motor Power Source L1 L2 Fuse Transformer Fuse Outdoor Compressor Compressor Contactor Capacitor Fan Motor Low Ambient INDUCED DRAFT INDUCED DRAFT Control (OPT.) BLOWER MOTOR BLOWER RELAY Crankcase Heater Aux. Phase Monitor Use for 208V Operation Transformer 24VAC FURNACE...