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INSTALLATION INSTRUCTIONS
WG SERIES COMBINATION GAS/ELECTRIC
WALL-MOUNT WITH DEHUMIDIFICATION
W24G3DA
W30G3DA
W24G3DB
W30G3DB
W30G3DC
W24G3DC
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:
W36G3DA
W36G3DB
W36G3DC
WARNING
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
W42G3DA
W48G3DA
W42G3DB
W48G3DB
W42G3DC
W48G3DC
Manual No.:
Supersedes:
Date:
W60G3DA
W60G3DB
W60G3DC
2100-631
NEW
4-1-15
Page
1 of 53
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Table of Contents
Related Manuals for Bard W24G3DA
Summary of Contents for Bard W24G3DA
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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 No.: 2100-631 Bryan, Ohio 43506 Supersedes: Date: 4-1-15 www.bardhvac.com... -
Page 2: Table Of Contents
CONTENTS Page Page 20. Checking Gas Input Rate ........ 28 Getting Other Information and Publications ....4 21. Standard Orifice Sizing & High W**G Series Model Nomenclature ......5 Altitude Derate ..........30 Ventilation Options ..........5 22. Conversion of Gas Input BTUH From High Air Conditioning Module Options ...... - Page 3 CONTENTS Page Page FIGURES TABLES Figure 1 Unit Dimensions ........9 Table 1 Specifications – W24G-36G Models ..7 Figure 2 Mounting Instructions – W24G-36G ..12 Table 1A Specifications – W42G-60G Models ..8 Figure 2A Mounting Instructions – W42G-60G ..13 Table 2 Minimum Installation Clearances ...
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Page 4: Getting Other Information And Publications
Winter and Winter Air Conditioning and Equipment 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 2100-631 Page 4 of 53... -
Page 5: W**G Series Model Nomenclature
WALL MOUNT GAS/ELECTRIC GENERAL MODEL NUMBER NOMENCLATURE VENT REVISION MODEL CONTROL OPTIONS (See Table Below) Wall Mount See Table page 6 GAS/ELECTRIC COIL OPTIONS COOLING CAPACITY VOLTAGE X = Standard 24 = 2 ton A = 230/208-60-1 1 = Phenolic coated evaporator 30 = 2½... -
Page 6: Air Conditioning Module Options
AIR CONDITIONING MODULE OPTIONS Factory Installed Field Installed Code Part • CMA-28 STD – Standard equipment. CCM 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 2100-631 Page 7 of 53...
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Page 8: Table 1A Specifications - W42G-60G Models
Manual 2100-631 Page 8 of 53... -
Page 9: Figure 1 Unit Dimensions
Manual 2100-631 Page 9 of 53... -
Page 10: High Altitude Applications
Any grille that meets with the 5/8 inch louver criteria Size of unit for proposed installation should be based may be used. It is recommended that Bard Return Air on heat loss/heat gain calculations made according to Grille or Return Filter Grille be installed when no return methods of Air Conditioning Contractors of America duct is used. -
Page 11: Wall Mounting
7. WALL MOUNTING INFORMATION WARNING 1. Two holes for the supply and return air openings must be cut through the wall as detailed in Figure Failure to provide the one inch clearance between the supply duct and a combustible 2. On wood-frame walls, the wall construction must surface for the first three feet of duct can result be strong and rigid enough to carry the weight of in fire causing damage, injury or death. -
Page 12: Figure 2 Mounting Instructions - W24G-36G
Manual 2100-631 Page 12 of 53... -
Page 13: Figure 2A Mounting Instructions - W42G-60G
Manual 2100-631 Page 13 of 53... -
Page 14: Figure 3 Combustible Clearance - W24G-36G
FIGURE 3 COMBUSTIBLE CLEARANCE FOR W24G, W30G AND W36G MODELS FIGURE 3A COMBUSTIBLE CLEARANCE FOR W42G, W48G AND W60G MODELS WARNING minimum of one (1) inch clearance must be maintained between the supply air duct and combustible materials. This is required for the first three (3) feet of ducting. It is important to insure that the one (1) inch minimum spacing is maintained at all points. -
Page 15: Figure 4 Wall Mounting Instructions
FIGURE 4 WALL MOUNTING INSTRUCTIONS FIGURE 5 WALL MOUNTING INSTRUCTIONS Manual 2100-631 Page 15 of 53... -
Page 16: Figure 6 Common Wall Mounting Installations
FIGURE 6 COMMON WALL MOUNTING INSTALLATIONS Manual 2100-631 Page 16 of 53... -
Page 17: Clearances
9. CLEARANCES TABLE 2 MINIMUM INSTALLATION CLEARANCES Minimum clearances, as specified in Table 2, must be maintained from adjacent structures to provide Outlet Duct 1 inch first 3 feet adequate fire protection, adequate combustion air, and (from combustible materials) room for service personnel. Vent Terminal * 17 inches (from combustible materials) -
Page 18: Vent Terminal And Combustion Inlet Hood
10. VENT TERMINAL AND COMBUSTION 11. OPTIONAL VERTICAL VENTING 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. -
Page 19: 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 If the unit is equipped with a fresh air damper attached appliances. -
Page 20: Wiring - Main Power
15. WIRING – MAIN POWER Electrical Grounding When installed, the furnace must be electrically WARNING grounded in accordance with local codes or in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70, or Canadian Electrical Code, For your personal safety, turn off electric CSA22.1, latest edition. -
Page 21: Wiring - Low Voltage Wiring
FIGURE 10 INSTALLATION OF FLEXIBLE CONDUIT 16. WIRING – LOW VOLTAGE WIRING Range Low Voltage Connection 253 – 206 These units use a 24-volt AC low voltage circuit. 220 – 187 The “R” terminal is the hot terminal and the “C” NOTE: The voltage should be measured at the field terminal is grounded. -
Page 22: Thermostats
17. THERMOSTATS TABLE 3 THERMOSTAT WIRE SIZE Maximum Transformer Wire Gauge Distance in Feet 20 gauge 18 gauge 16 gauge 14 gauge 12 gauge TABLE 4A WALL THERMOSTAT Thermostat Predominant Features 1 Stage Cool; 1 Stage Heat 8403-057 System: heat-off-cool Fan: on-auto (TH3110D1040) Electronic Non-Programmable 2 Stage Cool;... -
Page 23: Figure 11A T-Stat Connection Using Comb
FIGURE 11A THERMOSTAT CONNECTION USING 8403-060 COMBINATION TEMPERATURE & HUMIDITY CONTROLLER Thermostat Subbase Thermostat D/YO and Humidity W1/E Control Part #8403-060 (1120-445) Unit 24V Terminal Block Factory Installed Jumper Unit Control Panel CONFIGURE THERMOSTAT FOR HEAT/COOL NEEDED FOR ECONOMIZER ONLY INSTALL ONLY IF APPLIED THERMOSTAT DOES NOT HAVE INDIVIDUAL OUTPUT SIGNAL FOR OCCUPENCY, ORE YOU ARE NOT APPLYING A CO2 CONTROL. -
Page 24: Figure 11B T-Stat Using Temp. & Humidity Ctrl
Part #8403-058 (TH522OD1151) Unit 24V Terminal Block Unit Control Panel Electronic Humidistat Bard part #8403-047 (H200-10-21-10) Mechanical Humidistat Yellow Bard part #8403-038 (H600A 1014) SET SWITCH ON THERMOSTAT TO "GAS-OIL" CHANGE "SYSTEM TYPE", SET UP FUNCTION 1, FROM 5 (2 HEAT/ 1 COOL HEAT PUMP) TO 6 (2 HEAT/ 2 COOL CONVENTIONAL). -
Page 25: Figure 11D Economizer Low Volt. Connections
FIGURE 11C MOTORIZED FRESH AIR DAMPER, CLASSROOM VENTILATOR SPRING, CLASSROOM VENTILATOR POWER & ERV LOW VOLTAGE CONNECTIONS Unit 24V Terminal Block Factory Installed Jumper Unit Control Panel VENT PACKAGE WIRING PLUG INSTALL JUMPER IF YOU REQUIRE VENTILATION ANYTIME BLOWER IS ON, OR IF CONTROLS DON'T HAVE AN OCCUPENCY OUTPUT. -
Page 26: Figure 12 Gas Pipe Connection
FIGURE 12 GAS PIPE CONNECTION W24G - W36G W42G - W60G Manual 2100-631 Page 26 of 53... -
Page 27: Gas Supply & 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 28: Manifold Pressure Adjustment
5. Slowly open equipment shut off valve in gas supply PROPANE (LP) GAS CONVERSION line just ahead of furnace. Start furnace following “Operating Instructions” on front door. This unit may be converted in the field for use with Propane (LP) gas. Propane gas 6. - Page 29 Natural Gas Input Rate 9. If you left water heater, dryer or range pilots on, allow for them in calculating correct furnace gas Natural gas heating value (BTU/cu. ft.) can vary input. A quick way is to allow 1,000 BTU per hour significantly.
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Page 30: Standard Orifice Sizing & High Altitude Derate
21. STANDARD ORIFICE SIZING AND It is the installer’s responsibility to see that the furnace input rate is adjusted properly. Derating HIGH ALTITUDE DERATE must be achieved by reducing the size of the main This furnace is shipped with fixed gas orifices for use burner orifices. - Page 31 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 32 TABLE 8A NATURAL GAS ORIFICE TABLES FOR MODELS W42G, W48G AND W60G 6,001 to 8,000 Feet 8,001 to 10,000 Feet Up to 6,000 Feet No Requires Pressure Switch Factory Standard Gas Heat* Value Requires Pressure Switch Changes Except Change and Orifice Input BTU/Cu.
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Page 33: 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 34: Filters
FIGURE 14 ACCESS INTERNAL FILTER THROUGH UPPER SERVICE DOOR FILTER FILTER SERVICE DOOR MIS-3237 24. FILTERS High Pressure Switch and Lockout Sequence (Standard Feature) A 2” thick throwaway filter is supplied with each unit. If the high pressure switch opens, the compressor This filter is installed by opening the filter service door. - Page 35 Phase Monitor Alarm Output All units with three phase scroll compressors are Alarm terminal is output connection for applications equipped with a three phase line monitor to prevent where alarm signal is desired. This terminal is powered compressor damage due to phase reversal. whenever compressor is locked out due to HPC or LPC sequences as described.
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Page 36: Lighting & Shutdown Instructions
26. LIGHTING AND SHUTDOWN INSTRUCTIONS FIGURE 15 INSTRUCTION LABEL Manual 2100-631 Page 36 of 53... -
Page 37: Service Agency Procedures
27. SERVICE AGENCY PROCEDURES FIGURE 16 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 38: 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 39: Sequence Of Operation - Heating
30. SEQUENCE OF OPERATION – 31. SEQUENCE OF OPERATION – HEATING COOLING On a call for cooling from the room thermostat, the high On a call for heat from the thermostat, the induced draft blower is energized. Once sufficient draft is speed blower relay will be energized as well as the established, the pressure switch contacts close and compressor contactor. -
Page 40: Figure 17 Sequence Of Operation - Electronic Blower Control
FIGURE 17 SEQUENCE OF OPERATION ELECTRONIC BLOWER CONTROL Action System Response Thermostat calls for heat • Combustion air blower is energized. (W terminal is energized). • Air proving switch makes. Airflow is established. • Ignition system is energized. • Gas valve opens and main burner lights. •... -
Page 41: Indoor Blower Operation
FIGURE 18 FURNACE CONTROL BOARD AND BLOWER CONTROL All models have multiple speed direct drive blower If it is desirable to have both HEAT/COOL blower motor motors. If supply and return ducts are connected to speed at the same speed, install a jumper wire between the unit, the ducts must be of adequate size. -
Page 42: Table 10 W24G Indoor Blower Performance
TABLE 10 W24G INDOOR BLOWER PERFORMANCE @ 230 AND 460 VOLTS Recommended W24G cooling airflow range at rated 800 CFM @ 0.15 ESP (WC) is 680 - 920 CFM Factory set on Low Speed for cooling and High for heating. COOLING MODE MANUAL FAN and HEATING MODE Inches... -
Page 43: Table 11 W30G Indoor Blower Performance
TABLE 11 W30G INDOOR BLOWER PERFORMANCE @ 230 AND 460 VOLTS Recommended W30G cooling airflow range at rated 1000 CFM @ 0.35 ESP (WC) is 820 - 1150 CFM Factory set on Medium Speed for cooling and for heating. COOLING MODE MANUAL FAN and HEATING MODE Inches Wet Coil... -
Page 44: Table 12 W36G Indoor Blower Performance
TABLE 12 W36G INDOOR BLOWER PERFORMANCE @ 230 AND 460 VOLTS Recommended W36G cooling airflow range at rated 1100 CFM @ 0.250 ESP (WC) is 935 - 1265 CFM Factory set on Medium Speed for cooling and for heating. COOLING MODE MANUAL FAN and HEATING MODE Inches Wet Coil... -
Page 45: Table 13 W42G Indoor Blower Performance
TABLE 13 W42G INDOOR BLOWER PERFORMANCE @ 230 AND 460 VOLTS Recommended W42G cooling airflow range at rated 1300 CFM @ .35 ESP (WC) is 1500 - 1030 CFM Factory set on Medium Speed for heating and cooling COOLING MODE MANUAL FAN and HEATING MODE Inches Wet Coil... -
Page 46: Table 14 W48G Indoor Blower Performance
TABLE 14 W48G INDOOR BLOWER PERFORMANCE @ 230 AND 460 VOLTS Recommended W48G cooling airflow range at rated 1550 CFM @ .38 ESP (WC) is 1750 - 1280 CFM Factory set on High Speed for cooling and Medium Speed for heating. COOLING MODE MANUAL FAN and HEATING MODE Inches... -
Page 47: Table 15 W60G Indoor Blower Performance
TABLE 15 W60G INDOOR BLOWER PERFORMANCE @ 230 AND 460 VOLTS Recommended W60G cooling airflow range at rated 1650 CFM @ .30 ESP (WC) is 1910 - 1340 CFM Factory set on High Speed for cooling and Medium Speed for heating. COOLING MODE MANUAL FAN and HEATING MODE Inches... -
Page 48: Table 16 Integrated Furnace & Blower Control Operation
TABLE 16 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 49: W**G Dehumidification Relay Logic Board
33. W**G DEHUMIDIFICATION RELAY LOGIC BOARD DEHUMIDIFICATION RELAY LOGIC BOARD 24V Terminal Block Connections Outputs from Board Inputs to Board Cooling Mode Unoccupied Cooling Mode Occupied With Dehum Cooling Mode 1st Stage Heating Unoccupied 1st Stage Heating Occupied 1st Stage Heating With Dehum 2nd Stage Heating Unoccupied... -
Page 50: Pressure Service Ports
34. PRESSURE SERVICE PORTS senses the need for mechanical dehumidification. It then energizes both the compressor circuit and the three High and low pressure service ports are installed on way valve, thus directing the hot refrigerant discharge all units so that the system operating pressures can be gas into a separate desuperheating condenser circuit, observed. -
Page 51: Refrigerant Charge
36. REFRIGERANT CHARGE The nameplate charge quantity is optimized for thermal performance and efficiency of this self-contained The correct system R-410A charge is shown on the unit package system. rating plate. The system operating pressures in Table 17 are based You can reference Table 17 to validate proper system upon rated airflow across the evaporator during cooling operation (+2 psig suction, +5 psig discharge). -
Page 52: Fan Blade Setting Dimensions
38. LOW-NOX BURNER ASSEMBLY 37. FAN BLADE SETTING DIMENSIONS “N” SUFFIX MODELS ONLY – U.S. Shown in Figure 20 is the correct fan blade setting INSTALLATIONS ONLY dimension for proper air delivery across the outdoor coil. Natural Gas Models Only Model numbers designated with an “N”... -
Page 53: Index - Wiring Diagrams
INDEX WIRING DIAGRAMS AND LADDER DIAGRAMS Unit Basic Basic Model No. Wiring Diagram Ladder Diagram W24G3DA 4085-165 4085-166 W24G3DB 4085-263 4085-264 W24G3DC 4085-386 4085-387 W30G3DA 4085-167 4085-168 W30G3DB 4085-265 4085-266 W30G3DC 4085-388 4085-389 W36G3DA 4085-167 4085-168 W36G3DB 4085-265 4085-266 W36G3DC...