CONTENTS Getting Other Information and Publications ..3 Service ..............25 Wall Mount General Information ......4 Solid State Heat Pump Control Troubleshooting Heat Pump Wall Mount Model Nomenclature ..4 Procedure ............25 Shipping Damage ..........4 Checking Temperature Sensor Outside General ...............
WALL MOUNT GENERAL INFORMATION HEAT PUMP WALL MOUNT MODEL NOMENCLATURE – CONTROL MODULES MODEL NUMBER REVISIONS E - Low Ambient Control ELECTRIC HEAT (LAC) 00 - 0Kw with Lug Connection CAPACITY COIL OPTIONS 18 - 1½ Ton H - Heat Pump X - Standard VOLTS &...
Fresh Air Intake clearance to combustible material for the first 3' of duct attached to the outlet air frame is required. See All units are built with fresh air inlet slots punched in Ducted Applications on page 7 and Figures 3A and 3B the service door.
INSTALLATION Basic Installation Design and contact with the base of the unit. If allowed, this could cause damage to the coil and other Application Planning base components. Also, be sure there are no Successful unit installations require proper planning air obstructions to the sides or front of the and site inspection before installation begins.
directly in front of the unit return grilles and registers. Free Blow Applications Bard recommends at least 2' between solid objects Some installations may not require extensive supply and return grilles or registers. Ductwork may be used to duct work throughout the structure and are referred ensure proper air circulation and all provided ductwork to as free blow applications.
Unit Installation flashing is supplied for field use and is mounted to the back of the unit for shipping. Remove rain Make sure to have the proper tools at the work site that flashing before locating the unit against wall. Top are needed for unit installation.
TABLE 1 TABLE 2 Clearance Required for Service Access and Minimum Clearances Required Adequate Condenser Airflow to Combustible Materials Left Right Model Supply Air Duct (1st 3') Cabinet Model Side Side J18H J18H 0" 0" J24H J24H 15" 20" J30H J36H J30H 1/4"...
FIGURE 4 Electric Heat Clearance J30H and J36H SIDE SECTION VIEW OF SUPPLY AIR DUCT FOR WALL-MOUNTED UNIT SHOWING 1/4" CLEARANCE TO COMBUSTIBLE SURFACES. WARNING Fire hazard. Maintain minimum 1/4" clearance between the supply air duct and combustible materials in the first 3' of ducting.
FIGURE 5 Wall Mounting Instructions WALL STRUCTURE SEE FIGURES 3A-B – MOUNTING INSTRUCTIONS FACTORY SUPPLIED RAIN FLASHING. MOUNT ON UNIT BEFORE INSTALLATION SUPPLY AIR SUPPLY AIR SUPPLY AIR DUCT OPENING OPENING RETURN AIR RETURN AIR RETURN AIR OPENING OPENING OPENING BOTTOM MOUNTING WOOD OR STEEL SIDING BRACKET.
FIGURE 7 Common Wall Mounting Installations SUPPLY DUCT MAY BE LOCATED IN AN ATTIC OR BELOW CEILING RAFTERS AS SHOWN RAIN RAIN FLASHING RAFTERS FLASHING RAFTERS FINISHED CEILING SURFACE SUPPLY AIR DUCT SUPPLY AIR DUCT FINISHED CEILING SURFACE W/ GRILLE RETURN AIR RETURN AIR OPENING W/ GRILLE...
Wiring – Main Power Low Voltage Connections These units use a 24-volt AC low voltage circuit. Refer to the unit rating plate for wire sizing information and maximum fuse or circuit breaker size. Each C terminal is 24VAC common and is grounded. outdoor unit is marked with a “Minimum Circuit G terminal is the indoor blower input.
TABLE 3 Y2 which then increases the blower speed back to the selected speed. See pages 33 – 35 for blower speed Low Voltage Connections selection options. Units w/ Refer to page 21 for additional Balanced Climate Standard Units Economizers requirements and limitations.
TABLE 4 Wall Thermostats Part Number Predominate Features 8403-057 1 stage Cool, 1 stage Heat; Electronic Non-Programmable; Auto or Manual changeover (TH3110D1040) 8403-059 2 stage Cool, 2 stage Heat; Electronic Non-Programmable; HP or Conventional (Default: AC); Auto or Manual (TH5220D1219/U) changeover 8403-060 3 stage Cool;...
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FIGURE 8 Programmable Thermostat Connections Completestat Model #CS9B-THO or Model #CS9BE-THO W1/E Thermostat W1/E YO/D Bard #8403-060 Optional CO2 Controller Bard Part #8403-067 24VAC CO2 OUT TEMP-OUT Unit Low B/W1 Voltage Term. Strip 12-Pin Vent Plug ALL VENT OPTIONS PLUG IN HERE If not equipped with a ventilation option to plug in, a jumper plug must be installed.
FIGURE 9 Non-Programmable Thermostat Connections Units With Dehumidification 8403-038 8403-057 Mechanical Humidistat (TH311OD1040) or T4 Pro 8403-089 8403-058 (TH522OD1151) 8403-047 8403-059 (TH522OD1219/U) Electronic Humidistat or T6 Pro 8403-090 Optional CO2 Controller Bard Part #8403-067 24VAC CO2 OUT TEMP-OUT Unit Low B/W1 Voltage Term.
START UP refrigerant charge, in the system, may be used after leaks have occurred and then “top-off” the charge by utilizing the pressure charts on the inner control panel cover as a guideline. REMEMBER: When adding R-410A refrigerant, it must These units require R-410A refrigerant and come out of the charging cylinder/tank as a liquid to polyol ester oil.
High and Low Pressure Switch Condenser Fan Operation All J**H Series wall-mounted heat pump models are NOTE: Certain models may be equipped with a low supplied with a remote reset for the high and low ambient control (LAC), and if so, the condenser fan pressure switch.
is activated it is employed in both heating and cooling to another time, remove the wire from the 60-minute modes. terminal and reconnect to the desired terminal. Refer to Figure 10 on page 24. If the application is likely to require air conditioning operation below 60°F outdoor conditions, a low There is a cycle speed up jumper on the control.
Service Hints After this period expires, the control will then monitor the low pressure switch input normally to make sure 1. Caution owner/operator to maintain clean air that the switch is closed during “Y” operation. filters at all times and to not needlessly close off High Pressure Switch Operation supply and return air registers.
SERVICE Solid State Heat Pump Control NOTE: If there was no power to 24 volt transformer, Troubleshooting Procedure the compressor and outdoor fan motor will not start for 5 minutes. This is because of the 1. NOTE: A thorough understanding of the defrost compressor short cycle protection.
Checking Temperature Sensor Outside 3. Check resistance reading to chart of resistance. Use sensor ambient temperature. (Tolerance of part Unit Circuit is ± 10%.) 1. Disconnect temperature sensor from board and 4. If sensor resistance reads very low, sensor is from outdoor coil.
Troubleshooting NIDEC SELECTECH higher than allowed, additional duct work is needed. Series ECM Motors E. If the motor does not shut off at the end of the If the Motor Is Running cycle, wait for any programmed delays to time 1.
TROUBLESHOOTING GE X13-SERIES ECM2.3 ™ MOTORS CONT’D. Model SelecTech Communication Diagnostics B. If the motor has proper high voltage as identified above (If the Motor Is Not Running 2. Initiate a demand from the thermostat and check the The SelecTech motor is communicated through 24 VAC Model X13 Communication Diagnostics #1 on page 27), proper low voltage to a voltage between the common and the appropriate motor...
Fan Blade Setting Dimensions Removal of Fan Shroud The correct fan blade setting for proper air delivery 1. Disconnect all power to the unit. across the outdoor coil is shown in Figure 13. Refer to 2. Remove the screws holding both grilles, one on Table 10 for unit specific dimension.
TABLE 11A Cooling Pressure Air Temperature Entering Outdoor Coil °F Return Air Temp Model Pressure (DB/WB) Low Side 75/62 High Side Low Side J18HB 80/67 High Side Low Side 85/72 High Side Low Side 75/62 High Side Low Side J24HB 80/67 High Side Low Side...
TABLE 12 Cooling Pressure – Balanced Climate Airflow Air Temperature Entering Outdoor Coil °F Return Air Temp Model Pressure (DB/WB) Low Side 75/62 High Side Low Side J18HB 80/67 High Side Low Side 85/72 High Side Low Side 75/62 High Side Low Side J24HB 80/67...
TABLE 13 Electrical Specifications Single Circuit Dual Circuit j Minimum k Maximum Rated Volts Field Maximum Field Circuit External Fuse Field Power Ground Model Minimum & Phase Power External Power Ground Ampacity or Ckt. Breaker Wire Size Wire Size Circuit Circuits Fuse or Wire...
terminal (1-5). ("G" input is typically on terminal #1, but (Thermostat Control Circuit Wiring). refer to wiring diagram!) Start with unit wiring diagram to confirm proper a. If the low voltage communication is not present, check connections and voltage (see Figure 11). the demand from the thermostat.
Speed Tap 1 – Vent/Blower Only the jumper between Y1 and Y2 installed and it must be removed to use Balanced Climate mode. The unit Speed taps 1 and 3 are programmed to identical is shipped with the orange/black wire connected to torque settings in the ECM motor.
TABLE 17 Maximum ESP of Operation Electric Heat Only Model Front Outlet Model A00/0Z High J18H Speed Speed J24H A00/0Z B00/0Z J30H J24H J36H C00/0Z J24H B00/0Z J30H J36H C00/0Z J30H J36H TABLE 18 Electric Heat Models 240V-1 208V-1 240V-3 208V-3 460V-3 Amps...
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