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INSTALLATION INSTRUCTIONS

WALL MOUNTED GAS/ELECTRIC
WARNING
READ ALL INSTRUCTIONS CAREFULLY BEFORE
BEGINNING THE INSTALLATION.
THE INSTALLATION MUST COMPLY WITH THESE
INSTRUCTIONS AND THE REQUIREMENTS OF
ALL GOVERNING CODES AND ORDINANCES FOR
THE INSTALLATION LOCATION.
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.
Models:
WG3S2-B
WG3S2-A
WG4S2-A
WG4S2-B
WG5S2-A
WG5S2-B
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
WG3S2-C
WG4S2-C
WG5S2-C
Manual :
Supersedes:
Date:
2100-587D
2100-587C
4-23-15
Page
1 of 58

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Summary of Contents for Bard WG3S2-A

  • Page 1: Installation Instructions

    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...
  • Page 2: Table Of Contents

    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 ..........
  • Page 3: Figure 2B Mounting Instructions For Wg4S2 Table

    Page Page FIGURES TABLES Figure 1 Unit Dimensions ........8 Table 1 Specifications ........7 Figure 2A Mounting Instructions for WG3S2 ..11 Table 2 Minimum Installation Clearances ... 16 Figure 2B Mounting Instructions for WG4S2 Table 3 Thermostat Wire Size ......20 and WG5S2 ........
  • Page 4: Getting Other Information And Publications

    Canadian Standards Association Selection 178 Rexdale Boulevard Rexdale, Ontario Canada. M9W 1R3 Canadian Electrical Code ......CSA C22.1 Telephone: (416) 447-4044 Canadian Installation Code ....CAN/CGA B149 BARD MANUFACTURING COMPANY, INC. BRYAN, OHIO 43506 USA Manual 2100-587D Page 4 of 58...
  • Page 5: Wall Mount Gas/Electric General Information

    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...
  • Page 6: Air Conditioning Module Options

    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.
  • Page 7 Manual 2100-587D Page 7 of 58...
  • Page 8: Figure 1 Unit Dimensions

    Manual 2100-587D Page 8 of 58...
  • Page 9: Installation

    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.
  • Page 10: Transportation Damage

    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.
  • Page 11: Figure 2A Mounting Instructions For Wg3S2

    Manual 2100-587D Page 11 of 58...
  • Page 12 Manual 2100-587D Page 12 of 58...
  • Page 13: Figure 3 Combustible Clearance

    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.
  • Page 14: Figure 4 Wall Mounting Instructions

    FIGURE 4 Wall Mounting Instructions FIGURE 5 Wall Mounting Instructions Manual 2100-587D Page 14 of 58...
  • Page 15: Figure 6 Common Wall Mounting Installations

    FIGURE 6 Common Wall Mounting Installations Manual 2100-587D Page 15 of 58...
  • Page 16: Clearances

    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"...
  • Page 17: Vent Terminal And Combustion Air Inlet Hood

    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).
  • Page 18: Vent Resizing Instructions

    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.
  • Page 19: Wiring - Main Power

    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...
  • Page 20: Wiring - Low Voltage Wiring

    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).
  • Page 21: Figure 10A Low Voltage Wiring - No Vent

    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...
  • Page 22: Figure 10B Low Voltage Wiring - Crv

    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...
  • Page 23: Figure 10C Low Voltage Wiring - Economizer

    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...
  • Page 24: Figure 10D Low Voltage Wiring - Erv

    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.
  • Page 25: Figure 11 Gas Pipe Connection

    FIGURE 11 Gas Pipe Connection Manual 2100-587D Page 25 of 58...
  • Page 26: Gas Supply And Piping

    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.
  • Page 27: Manifold Pressure Adjustment

    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...
  • Page 28 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.
  • Page 29: Standard Orifice Sizing And High Altitude Derate

    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'.
  • Page 30 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.
  • Page 31: Conversion Of Gas Input Btuh From High To Low Rating

    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.
  • Page 32: Filters

    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).
  • Page 33: Phase Monitor

    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.
  • Page 34: Lighting And Shutdown Instructions

    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.
  • Page 35: Service Agency Procedures

    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.
  • Page 36: Replacement Parts

    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.
  • Page 37: Sequence Of Operation - Heating

    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.
  • Page 38: Indoor Blower Operation

    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...
  • Page 39: Table 10 Integrated Furnace And Blower Control Operation

    TABLE 10 Integrated Furnace and Blower Control Operation IGNITION SEQUENCE CONTROL Ignition Source 24 VAC DSI Flame Sensing Remote Timings - Prepurge 15 seconds - Postpurge 30 seconds (0 if cycle terminated before valve “on”) - Inter-trial purge 15 seconds - Pressure switch proving period 60 seconds - Trials for ignition...
  • Page 40: Start Up

    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.
  • Page 41: Troubleshooting

    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.
  • Page 42: Ecm Tm Motors

    ™ 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...
  • Page 43: Figure 19 Control Disassembly

    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.
  • Page 44: Pressure Service Ports

    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...
  • Page 45: R-410A Refrigerant Charge

    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.
  • Page 46: Index - Wiring Diagrams And Ladder Diagrams

    INDEX Wiring Diagrams and Ladder Diagrams Model No. Heating Input Input Power Wiring Diagram Ladder Diagram 50,000 4085-154A 4085-155 75,000 4085-156A 4085-157 208/230/60/1 100,000 4085-154A 4085-155 125,000 4085-156A 4085-157 50,000 4085-254A 4085-269 75,000 4085-255A 4085-270 WG3S2 208/230/60/3 100,000 4085-254A 4085-269 125,000 4085-255A 4085-270...
  • Page 47 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...
  • Page 48 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...
  • Page 49 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...
  • Page 50 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...
  • Page 51 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...
  • Page 52 230/208-60-3 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...
  • Page 53 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...
  • Page 54 230/208-60-3 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...
  • Page 55 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°...
  • Page 56 460-60-3 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...
  • Page 57 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...
  • Page 58 460-60-3 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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