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Bard WH301 Installation Instructions Manual

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INSTALLATION
INSTRUCTIONS
WALL MOUNTED
PACKAGED HEAT PUMP
Models:
Bard Manufacturing Company
Bryan, Ohio 43506
Since 1914. . .Moving ahead just as planned.
WH301, WH361
MIS-656
Manual No.:
Supersedes:
File:
Date:
2100-193K
2100-193J
Volume III, Tab 17
05-13-02
© Copyright 2002

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  • Page 1 WALL MOUNTED INSTALLATION PACKAGED HEAT PUMP INSTRUCTIONS WH301, WH361 Models: MIS-656 Bard Manufacturing Company Manual No.: 2100-193K Supersedes: 2100-193J Bryan, Ohio 43506 File: Volume III, Tab 17 Since 1914. . .Moving ahead just as planned. Date: 05-13-02 © Copyright 2002...

  • Page 2: Table Of Contents

    CONTENTS Start Up Getting Other Information and Publications For more information, Important Installer Note ........17 Crankcase Heaters ..........17 contact these publishers ......... 1 Service Hints ............17 Sequence of Operation ......... 17 Wall Mount General Information Heat Pump Wall Mount Model Nomenclature ..2 Pressure Service Ports .........

  • Page 3: Getting Other Information And Publications

    Getting Other Information and Publications These publications can help you install the air For more information, contact these conditioner or heat pump. You can usually find these at publishers: your local library or purchase them directly from the publisher. Be sure to consult current edition of each standard.

  • Page 4: Wall Mount General Information

    WALL MOUNT GENERAL INFORMATION Heat Pump Wall Mount Model Nomenclature MODEL CONTROL MODULES 36 1 – A 10 NUMBER COIL OPTIONS CAPACITY X - Standard 30 - 2 1/2 Ton REVISIONS 1 - Phenolic Coated Evaporator 36 - 3 Ton COLOR OPTIONS 2 - Phenolic Coated Condenser X - Beige (Standard)

  • Page 5: Table 1 Electric Heat Table

    TABLE 1 ELECTRIC HEAT TABLE...

  • Page 6: Figure 1 Unit Dimensions

    FRONT VIEW SIDE VIEW BACK VIEW MIS-1262 Optional top outlet (factory installed only) for WH30 and WH36 models only.

  • Page 7: Table 3 Electrical Specifications

    TABLE 3 ELECTRICAL SPECIFICATIONS Maximum size of the time delay fuse or HACR type circuit breaker for protection of field wiring conductors. Based on 75° copper wire. All wiring must conform to the National Electrical Code and all local codes. Maximum KW that can operate with heat pump on These "Minimum Circuit Ampacity"...

  • Page 8: Filters

    5/8 inches. Any grille that meets the 5/8 inch louver criteria may be used. It is recommended that Bard Return Air Grille Kit RG-2 through RG-5 or RFG-2 through RFG-5 be installed when no return duct is used. Contact distributor or factory for ordering information.

  • Page 9: Installation Instructions

    INSTALLATION INSTRUCTIONS WALL MOUNTING INFORMATION 3. Locate and mark lag bolt locations and bottom mounting bracket location. See Figure 3. 1. Two holes, for the supply and return air openings, 4. Mount bottom mounting bracket, if used. must be cut through the wall as shown in Figure 3. 5.

  • Page 10: Figure 3 Mounting Instructions

    FIGURE 3 MOUNTING INSTRUCTIONS MIS-311...

  • Page 11: Figure 4 Electric Heat Clearance

    FIGURE 4 ELECTRIC HEAT CLEARANCE MIS-277 Side section view of supply air duct for wall mounted unit showing 1/4" clearance to combustible surfaces. WARNING A minimum of 1/4" clearance must be maintained between the supply air duct and combustible materials. This is required for the fist three (3) feet of ducting.

  • Page 12: Figure 5 Attaching Top Outlet To Unit

    FIGURE 5 ATTACHING TOP OUTLET AIRFRAMES TO UNIT MIS-481 FIGURE 6 UNIT WITH TOP OUTLET MOUNTED UNDER OVERHANG MIS-482 Manual 2100-193 Page 10...

  • Page 13: Figure 7 Wall-Mounting Instructions

    FIGURE 7 WALL-MOUNTING INSTRUCTIONS SEE FIGURE 3 – MOUNTING INSTRUCTIONS MIS-548 FIGURE 8 WALL-MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS, FIGURE 1, FOR ACTUAL DIMENSIONS SEE FIGURE 1 FOR DUCT DIMENSIONS MIS-549 Manual 2100-193 Page 11...

  • Page 14: Figure 9 Common Wall-Mounting Installations

    FIGURE 9 COMMON WALL-MOUNTING INSTALLATIONS MIS-550 Manual 2100-193 Page 12...

  • Page 15: Wiring - Main Power

    WIRING — MAIN POWER WIRING — LOW VOLTAGE WIRING Refer to the unit rating plate for wire sizing information 230/208V, 1 phase and 3 phase equipment dual primary and maximum fuse or “HACR Type” circuit breaker voltage transformers. All equipment leaves the factory size.

  • Page 16: Figure 10 Low Voltage Wiring

    FIGURE 10 LOW VOLTAGE WIRING Manual 2100-193 Page 14...

  • Page 17: Compressor Cutoff Thermostat And Outdoor Thermostats

    Outdoor thermostats are available to hold off various COMPRESSOR CUTOFF THERMOSTAT banks of electric heat until needed as determined by AND OUTDOOR THERMOSTATS outdoor temperature. The set point of either type of Heat pump compressor operation at outdoor thermostat is variable with geographic region and sizing temperatures below 0°...

  • Page 18: Heat Anticipation

    HEAT ANTICIPATION stage 2 and it should be set to match the load carried by the W2 circuit. The normal factory wiring provides for The thermostats shown below have a fixed heat only one electric heat contactor to be controlled by W2, anticipator for stage 1 with no adjustment required.

  • Page 19: Figure 13 Start Up Label

    START UP IMPORTANT INSTALLER NOTE FIGURE 13 START UP LABEL For improved start-up performance, wash the indoor coil with a dishwashing detergent. IMPORTANT CRANKCASE HEATERS These procedures must be followed All units are provided with some form of compressor at initial start up and at any time crankcase heat.

  • Page 20: Figure 14 Defrost Control Board

    economy. If special circumstances require a change to PRESSURE SERVICE PORTS another time, remove wire connected to terminal 30 and High and low pressure service ports are installed on all reconnect to desired terminal. Refer to Figure 10. The units so that the system operating pressures can be manufucturer’s recommendation is for 3 minute defrost observed.

  • Page 21: Troubleshooting

    TROUBLESHOOTING SOLID STATE HEAT PUMP CONTROL 3. Turn thermostat blower switch to "Auto" position. TROUBLESHOOTING PROCEDURE Indoor blower should stop. 4. Set system switch to heat or cool. Adjust thermostat 1. Turn on AC power supply to indoor and outdoor to call for "Heat"...

  • Page 22: Checking Temperature Sensor Outside Unit Circuit

    CHECKING TEMPERATURE SENSOR 3. Check resistance reading to chart of resistance use sensor ambient temperature. (Tolerance of part is OUTSIDE UNIT CIRCUIT ± 10%.) 1. Disconnect temperature sensor from board and from 4. If sensor resistance reads very low, then sensor is outdoor coil.

  • Page 23: Figure 15 Fan Blade Setting

    The suction line temperatures in Table 9 are based upon FAN BLADE SETTING DIMENSIONS 80ºF dry bulb/67ºF wet bulb (50 percent R.H.) Shown in the drawing below are the correct fan blade temperature and rated airflow across the evaporator setting dimensions for proper air delivery across the during cooling cycle.

  • Page 24: Table 13 Cooling Pressures

    TABLE 13 COOLING PRESSURE (PSI) – OUTDOOR TEMPERATURE °F Air Temperature Entering Outdoor Coil °F TABLE 14 HEATING PRESSURE (PSI) – OUTDOOR TEMPERATURE °F Air Temperature Entering Outdoor Coil °F Low side pressure ± 2 psig High side pressure ± 5 psig Tables are based upon rated CFM (airflow) across the evaporator coil and should be found under section titled "Refrigerant Charge"...

  • Page 25: Optional Accessories

    TABLE 15 OPTIONAL ACCESSORIES l a i i t n t a l i t n t a l i t n t a l t i u t i u t i u t i u Manual 2100-193 Page 23...

This manual is also suitable for:

Wh361

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