Bard WH242 manual

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Table of contents for the manual

  • Page 1

    W ALL MOUNTED P ACKAGE HEA T PUMP Models WH183 WH242 INST ALLA TION INSTRUCTIONS Manual : 2100-373A Supersedes: 2100-373 File: V olume III T ab 17 Date: 05-13-02 Bard Manufacturing Company Bryan, Ohio 43506 Since 1914...Moving ahead just as planned. © Copyright 2002[...]

  • Page 2

    Contents Getting Other Informations and Publications ........ 1 W all Mount General Information ............................. 2 Heat Pump W all Mount Model Nomenclature .......... 2 Shipping Damage .................................................... 2 General ................................................................ 2 Duct Work ............[...]

  • Page 3

    Manual 2100-373 Page 1 Getting Other Information and Publications These publications can help you install the air conditioner or heat pump. You can usually find these at your local library or purchase them directly from the publisher. Be sure to consult current edition of each standard. National Electrical Code ...................... ANSI/NFPA 70 S[...]

  • Page 4

    Manual 2100-373 Page 2 W ALL MOUNT GENERAL INFORMA TION HEAT PUMP WALL MOUNT MODEL NOMENCLATURE NOTE: For 0 KW and circuit breakers (230/208 Volt) or pull disconnects (460 Volt) applications, insert 0Z in the KW field of model number. FILTER OPTIONS X - One Inch Throwaway (Standard) W - One Inch Washable P - Two Inch Pleated COLOR OPTIONS X - Beige[...]

  • Page 5

    Manual 2100-373 Page 3 FIGURE 1 UNIT DIMENSIONS MIS-992[...]

  • Page 6

    Manual 2100-373 Page 4 Size of unit for a proposed installation should be based on heat loss calculation made according to methods of Air Conditioning Contractors of America (ACCA). The air duct should be installed in accordance with the Standards of the National Fire Protection Association for the Installation of Air Conditioning and Ventilating s[...]

  • Page 7

    Manual 2100-373 Page 5 MIS-938 FIGURE 2 FRESH AIR DAMPER ASSEMBLY Any grille that meets the 5/8 inch louver criteria may be used. It is recommended that Bard Return Air Grille Kit RG2 thru RG5 or RFG2 thru RFG5 be installed when no return duct is used. Contact distributor or factory for ordering information. If using a return air filter grille, fil[...]

  • Page 8

    Manual 2100-373 Page 6 INST ALLA TION INSTRUCTIONS WALL MOUNTING INFORMATION 1. These units are secured by wall mounting brackets which secure the unit to the outside wall surface at both sides. A bottom mounting bracket is provided for ease of installation, but is not required. 2. On wood frame walls, the wall construction must be strong and rigid[...]

  • Page 9

    Manual 2100-373 Page 7 FIGURE 3 MOUNTING INSTRUCTIONS MIS-353[...]

  • Page 10

    Manual 2100-373 Page 8 FIGURE 5 WALL MOUNTING INSTRUCTIONS SEE UNIT DIMENSIONS, FIGURE 1, FOR ACTUAL DIMENSIONS MIS-548 MIS-549 FIGURE 4 WALL MOUNTING INSTRUCTIONS SEE FIGURE 3 – MOUNTING INSTRUCTIONS[...]

  • Page 11

    Manual 2100-373 Page 9 FIGURE 6 COMMON WALL MOUNTING INSTALLATIONS MIS-550[...]

  • Page 12

    Manual 2100-373 Page 10 WIRING – MAIN POWER Refer to the unit rating plate for wire sizing information and maximum fuse or “HACR” type circuit breaker size. Each outdoor unit is marked with a “Minimum Circuit Ampacity”. This means that the field wiring used must be sized to carry that amount of current. Depending on the installed KW of el[...]

  • Page 13

    Manual 2100-373 Page 11 COMPRESSOR CUTOFF THERMOSTAT AND OUTDOOR THERMOSTATS Heat pump compressor operation at outdoor temperatures below 0° F are neither desirable not advantageous in terms of efficiency. Since most equipment at time of manufacture is not designated for any specific destination of the country and most of the equipment is installe[...]

  • Page 14

    Manual 2100-373 Page 12 HEAT ANTICIPATION Group A and Group B thermostats shown in Table 4 have a fixed heat anticipator for stage 1 with no adjustment required. Stage 2 has an adjustable anticipator for the W2 connection and fixed for the W3 connection. Both the W2 and W3 circuits are controlled by the stage 2 bulb. The only heat anticipator that [...]

  • Page 15

    Manual 2100-373 Page 13 ST ART UP IMPORTANT INSTALLER NOTE For improved start up performance, wash the indoor coil with a dish detergent. CRANKCASE HEATERS WH241 units are provided with compressor crankcase heat. These models have an insertion well-type heater located in the lower section of the compressor housing. This is a self-regulating type he[...]

  • Page 16

    Manual 2100-373 Page 14 PRESSURE SERVICE PORTS High and low pressure service ports are installed on all units so that the system operating pressures can be observed. Pressure curves can be found later in the manual covering all models on both cooling and heating cycles. It is imperative to match the correct pressure curve to the unit by model numbe[...]

  • Page 17

    Manual 2100-373 Page 15 TROUBLESHOOTING SOLID STATE HEAT PUMP CONTROL TROUBLESHOOTING PROCEDURE 1. Turn on AC power supply to indoor and outdoor units. 2. Turn thermostat blower switch to “fan on” – the indoor blower should start. (If it doesn’t, troubleshoot indoor unit and correct problem.) TABLE 5 TROUBLESHOOTING M O T P M Y SS E S U A C[...]

  • Page 18

    Manual 2100-373 Page 16 F R F R F R -25.0 -24.0 -23.0 -22.0 -21.0 -20.0 -19.0 -18.0 -17.0 -16.0 -15.0 -14.0 -13.0 -12.0 -11.0 -10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 21.0 22.0 23.0 24.0 196871 190099 183585 177318 171289 165487 159904 154529 14[...]

  • Page 19

    Manual 2100-373 Page 17 FAN BLADE SETTING DIMENSIONS Shown in the drawing below are the correct fan blade setting dimensions for proper air delivery across the outdoor coil. Any service work requiring removal or adjustment in the fan and/or motor area will require that the dimensions below be check and blade adjusted in or out on the motor shaft ac[...]

  • Page 20

    Manual 2100-373 Page 18 Low Side Pressure ± 2 PSIG High Side Pressure ± 5 PSIG T ables are based upon rated CFM (airflow) across the evaporator coil and should be found under section titled “ Refrigerant Charge ” elsewhere in manual. If there is any doubt as to correct operation charge being in the system, the charge should be removed, system[...]

  • Page 21

    Manual 2100-373 Page 19 TABLE 13 OPTIONAL ACCESSORIES L E D O MN O I T P I R C S E D 4 0 A - A 2 0 H W H E 8 0 A - A 2 0 A W H E 6 0 B - 4 1 H W H E 6 0 C - B 4 2 H W H E s e g a k c a P r e t a e H s e g a k c a P r e t a e H s e g a k c a P r e t a e H s e g a k c a P r e t a e H X X X X X X 2 - P O B 2 - D A F B 2 - D A F M 2 - V R C 2 - M F I E[...]