CONTENTS Getting Other Information and Publications ..3 Service ..............27 Wall Mount General Information ......4 Solid State Heat Pump Control Troubleshooting Air Conditioner Wall Mount Model Nomenclature ..4 Procedure ............27 Shipping Damage ..........4 Checking Temperature Sensor Outside Unit General ...............
WALL MOUNT GENERAL INFORMATION AIR CONDITIONER WALL MOUNT MODEL NOMENCLATURE – MODEL SERIES CONTROL MODULES E – Standard Controls, LAC CAPACITY 42 – 3½ Ton COIL OPTIONS 48 – 4 Ton X – Standard 60 – 5 Ton PLACEHOLDER H – Heat Pump X –...
Duct Work FIGURE 1 Front Control Panel Cover All duct work, supply and return, must be properly sized for the design airflow requirement of the equipment. Air Conditioning Contractors of America (ACCA) is an excellent guide to proper sizing. All duct work or portions thereof not in the conditioned space should be properly insulated in order to both conserve Front...
FIGURE 4 FIGURE 7 Filter Tabs in Down Position Re-Install Filter Support Brackets into Upper Slots Upper slots for 1" filters Lower slots for 2" filters FIGURE 8 Install Right 1" Filter FIGURE 5 Bend Filter Tabs to Up Position FIGURE 6 Remove Four Screws FIGURE 9...
Fresh Air Intake All units are built with fresh air inlet louvers punched in the side grilles. If the unit is equipped with a fresh air damper assembly, the assembly is shipped already attached to the unit. The damper blade is locked in the closed position. To allow the damper to operate, remove the two (2) screws in the bottom of the blade (see Figure 10).
INSTALLATION Basic Installation Design and Condensate Water Drainage Application Planning Review all codes and requirements for unit condensate drainage. A clear, flexible PVC drain hose (3/4" ID, 1" Successful unit installations require proper planning OD) extends from the drain pan in the upper section of and site inspection before installation begins.
Ducted Applications A non-restrictive metallic supply air grille with deflectors is required for free blow applications. Contact Field fabricated supply and return duct work may be the local Bard distributor or visit www.bardhvac.com for installed inside the structure being conditioned. A short ordering information.
• Appropriate safety gear including gloves and safety mounting bracket with field-supplied fasteners to glasses wall if it is to be used (optional). Bracket must be level and installed in the correct location to help • 5/16" hex bit with drill driver support the unit during the installation process •...
TABLE 1 TABLE 2 Clearance Required for Service Access and Minimum Clearances Required Adequate Condenser Airflow to Combustible Materials Left Right Discharge – Model Supply Air Duct (1st 3') Cabinet Model Side* Side* Front J42HC J42HC J48HC 1/4" 0" J48HC 20"...
FIGURE 13 Mounting Instructions SEAL WITH BEAD UNITS REQUIRED DIMESIONS OF CAULKING ALONG REQUIRED DIMESIONS TO ENTIRE LENGTH OF MAINTAIN 1/4" MIN. CLEARANCE 30 1/2 10 1/2 6 1/4 1 1/4 29 3/4 16 1 7/8 TOP. FROM COMBUSTIBLE MATERIALS J42HC-J48HC RAIN FLASHING UNITS...
FIGURE 14 Electric Heat Clearance NOTE 1: 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 15 Wall Mounting Instructions See Figure 13 Mounting Instructions FACTORY SUPPLIED RAIN FLASHING. WALL STRUCTURE MOUNT ON UNIT BEFORE INSTALLATION SUPPLY AIR OPENING RETURN AIR OPENING WOOD OR STEEL SIDING BOTTOM MOUNTING BRACKET. MOUNT ON WALL BEFORE INSTALLING UNIT. CONCRETE BLOCK WALL INSTALLATION WOOD FRAME WALL INSTALLATION SIDE VIEW...
FIGURE 17 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 OPENING WITH GRILLE FINISHED CEILING SURFACE RETURN AIR RETURN AIR OPENING WITH...
Wiring – Main Power All models are suitable only for connection with copper wire. Each unit and/or wiring diagram will be marked “Use Copper Conductors Only”. These instructions WARNING must be adhered to. Refer to the National Electrical Code (NEC) for complete current carrying capacity data on the various insulation grades of wiring material.
Unit Shutdown Feature (Standard on All Models) the upper control panel where the connections are made. (The field wire shield can be removed for wire The RT terminal is the 24VAC transformer output, installation.) If field power is supplied to the right of and the R terminal is the 24VAC hot terminal for the side of the unit, the low voltage wires can be run under operation of the equipment.
FIGURE 19 Programmable Thermostat Connections Completestat Model #CS9B-THOA or Model #CS9BE-THOA W1/E Thermostat W1/E YO/D Bard #8403-060 Optional CO2 Controller Bard Part #8403-096 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 20 Non-Programmable Thermostat Connections Units With Dehumidification 8403-038 Mechanical Humidistat T4 Pro 8403-095 T6 Pro 8403-090 or 8403-092 8403-047 Electronic Humidistat Optional CO2 Controller Bard Part #8403-096 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.
START UP REMEMBER: When adding R-410A refrigerant, it must come out of the charging cylinder/tank as a liquid to avoid any fractionation, and to ensure optimal system performance. Refer to instructions for the cylinder that is being utilized for proper method of liquid extraction. These units require R-410A refrigerant and polyol ester oil.
Service Hints However, three phase compressors will rotate in either direction depending upon phasing of the power. 1. Caution owner/operator to maintain clean air filters Since there is a 50-50 chance of connecting power at all times and also not to needlessly close off in such a way as to cause rotation in the reverse supply and return air registers.
Balanced Climate Mode through the outdoor coil melts any accumulated frost. When the temperature rises to approximately 57°F, the Balanced Climate™ is a great comfort feature that can coil temperature sensor will send a signal to the heat easily be applied under any normal circumstances. pump control which will return the system to heating If the Bard air conditioning system is being set up operations automatically.
Low Pressure Switch Bypass Operation There is also a 5-minute compressor time delay function built into the HPC. This is to protect the The control has a selectable (SW1) low pressure switch compressor from short cycling conditions. The board’s bypass set up to ignore the low pressure switch input LED will have a fast blink rate when in the compressor during the first (30, 60, 120 or 180 seconds) of “Y”...
High Pressure Switch Operation The control has a built-in lockout system that allows the unit to have the high pressure switch trip up to two times in 1 hour and only encounter a “soft” lockout. A “soft” lockout shuts the compressor off and waits for the pressure switch to reset, which at that point then allows the compressor to be restarted as long as the 5-minute short cycle timer has run out.
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 cycle 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 24VAC Model X13 Communication Diagnostics #1), proper low voltage to a programmed voltage between the common and the appropriate motor...
Fan Blade Setting Dimensions R-410A Refrigerant Charge Shown in Figure 24 is the correct fan blade setting This unit was charged at the factory with the quantity of for proper air delivery across the outdoor coil. Refer to refrigerant listed on the serial plate. AHRI capacity and Table 10 for unit specific dimension.
TABLE 10A Cooling Pressure – Standard Airflow Air Temperature Entering Outdoor Coil °F Return Air Temp Model Pressure (DB/WB) Low Side 75/62 High Side Low Side J42HC 80/67 High Side Low Side 85/72 High Side Low Side 75/62 High Side Low Side J48HC 80/67...
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TABLE 11 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 J42HC 80/67 High Side Low Side 85/72 High Side Low Side 75/62 High Side Low Side J48HC 80/67...
TABLE 12 Electrical Specifications − J**HC Series Single Circuit Multiple Circuit Maximum Minimum Rated Volts & Field External Field Power Ground Maximum Field Model Circuit Minimum Phase Power Fuse or Wire Size Wire Size External Power...
(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. Also check the output terminal and wire(s) from the terminal strip or control relay(s) to the motor.
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 16 Maximum ESP of Operation Electric Heat Only Model J42HC, J48HC J60HC Outlet FRONT FRONT Speed High High -A0Z -A04 -A05 -A10 -A15 -A20 -B0Z -B06 -B09 -B15 -B18 -C0Z -C09 -C15 Values shown are for units equipped with standard 1" throwaway filter or 1"...
TABLE 18 Vent and Control Options Part Number Description CMH-35 LAC - On/Off FAD-NE5 Fresh Air Damper - No Exhaust ECON-WD5 Economizer - Bldg. Equipment, Enthalpy ECON-DB5 Economizer - Bldg. Equipment, Temperature Manual 2100-736D Page 39 of 42...
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