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INSTALLATION INSTRUCTIONS
Wall Mount Heat Pump
C36HF-A
C36HF-B
C36HF-C
C36HFDA
C36HFDB
C36HFDC
11EER CH Series
Models:
C42HF-A
C42HF-B
C42HF-C
C42HFDA
C42HFDB
C42HFDC
Bard Manufacturing Company, Inc.
Bryan, Ohio 43506
www.bardhvac.com
C48HF-A
C48HF-B
C48HF-C
C48HFDA
C48HFDB
C48HFDC
Manual:
Supersedes: NEW
Date:
C60HF-A
C60HF-B
C60HF-C
C60HFDA
C60HFDB
C60HFDC
2100-805
11-12-24
Page
1 of 58
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Summary of Contents for Bard 11EER CH Series
- Page 1 INSTALLATION INSTRUCTIONS 11EER CH Series Wall Mount Heat Pump Models: C36HF-A C42HF-A C48HF-A C60HF-A C36HF-B C42HF-B C48HF-B C60HF-B C36HF-C C42HF-C C48HF-C C60HF-C C36HFDA C42HFDA C48HFDA C60HFDA C36HFDB C42HFDB C48HFDB C60HFDB C36HFDC C42HFDC C48HFDC C60HFDC Bard Manufacturing Company, Inc. Manual: 2100-805...
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Page 2: Table Of Contents
CONTENTS Safety Instructions ..........4 Phase Monitor ............ 33 General Information ..........12 Condenser Fan Operation ........33 Shipping Damage ..........12 Service Hints ............. 33 Additional Publications ........12 Sequence of Operation ........33 Heat Pump Wall Mount Model Nomenclature ..13 Cooling Stage 1 .......... - Page 3 FIGURES TABLES Figure 1 Front Control Panel Cover ....14 Table 1 Clearance Required for Service Access Figure 2 Removing Left Filter ......14 and Adequate Condenser Airflow ... 20 Figure 3 Removing Second Filter ....... 15 Table 2 Minimum Clearances Required to Figure 4 Filter Tabs in Up Position .....
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Page 4: Safety Instructions
SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USE Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on your appliance. Always read and follow all safety messages. ANSI Z535.5 Definitions: DANGER: Indicate[s] a hazardous situation which, if not avoided, will result in death or serious injury. - Page 5 WARNING CAUTION Electrical shock hazard. Sharp metallic edges. Have a properly trained individual perform Take care and wear appropriate protective these tasks. devices to avoid accidental contact with sharp edges. Failure to do so could result in electric shock or death. Failure to do so can result in personal injury.
- Page 6 IMPORTANT SAFETY INSTRUCTIONS WARNING To reduce the risk of explosion, fire, death, electric shock, scalding or injury to persons when using this product, follow basic precautions, including the following: GENERAL · The equipment covered in this manual is to be installed by trained, experienced service and installation technicians.
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Page 7: Operation
IMPORTANT SAFETY INSTRUCTIONS WARNING OPERATION · This appliance is not intended for use by persons (including children) with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. ·... -
Page 8: Instructions De Sécurité
INSTRUCTIONS DE SÉCURITÉ LIRE TOUTES LES INSTRUCTIONS AVANT UTILISATION Votre sécurité et celle des autres sont très importantes. Nous avons fourni de nombreux messages de sécurité importants dans ce manuel et sur votre appareil. Lisez et suivez toujours tous les messages de sécurité. Définitions ANSI Z535.5 : DANGER : Indique une situation dangereuse qui, si elle n’est pas évitée, entraînera certainement la mort ou des blessures graves. - Page 9 AVERTISSEMENT ATTENTION Risque de choc électrique. Arêtes métalliques vives. Ces tâches doivent être réalisées par une Faites attention et portez des dispositifs de personne parfaitement qualifiée et formée. protection appropriés pour éviter tout contact accidentel avec des arêtes vives. Le non-respect de cette consigne peut entraîner des chocs électriques ou la mort.
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Page 10: Instructions De Sécurité Importantes
INSTRUCTIONS DE SÉCURITÉ IMPORTANTES AVERTISSEMENT Pour réduire le risque d’explosion, d’incendie, de décès, de choc électrique, d’échaudure ou de blessures pour les personnes lors de l’utilisation de ce produit, suivez les précautions de base, notamment les suivantes : GÉNÉRALITÉS · L’équipement couvert dans ce manuel doit être installé par des techniciens de service et d’installation formés et expérimentés. -
Page 11: Opération
INSTRUCTIONS DE SÉCURITÉ IMPORTANTES AVERTISSEMENT OPÉRATION · Cet appareil n’est pas destiné à être utilisé par des personnes (y compris des enfants) ayant des capacités physiques, sensorielles ou mentales réduites, ou un manque d’expérience et de connaissances, à moins qu’elles n’aient reçu une supervision ou une instruction concernant l’utilisation de l’appareil par une personne responsable de leur sécurité. -
Page 12: General Information
GENERAL INFORMATION General Additional Publications The equipment covered in this manual is to be installed These publications can help when installing the heat by trained, experienced service and installation pump. They can usually be found at the local library technicians. or purchased directly from the publisher. -
Page 13: Heat Pump Wall Mount Model Nomenclature
Wall Mount Heat Pump Model Nomenclature – 0Z X MODEL SERIES ACCESSORIES & 2 Stage Quiet Climate CONTROL OPTIONS X – Standard Controls CAPACITY (HPS, LPS, CCM) 36 – 3.0 Ton E – Low Ambient Control 42 – 3.5 Ton (LAC) 48 –... -
Page 14: Ductwork
5/8". Any grille that meets with 5/8" louver criteria may be FIGURE 2 used. It is recommended that Bard Return Air Grille Removing Left Filter Kits RG5 or RFG5 be installed when no return duct is used. -
Page 15: Switching Filter Sizes
FIGURE 3 2. Locate the filter support brackets and remove the four (4) screws holding them to the top of the Removing Second Filter control panel (see Figure 6). FIGURE 6 Remove Four Screws 3. Reverse the order for new filter installation. 3. -
Page 16: Fresh Air Intake
Fresh Air Intake 6. Install the right 2" filter first followed by the left filter (see Figures 9 and 10). All units are built with fresh air inlet louvers punched NOTE: When installing new filters, make sure that in the side grilles. airflow arrows on filters point up. -
Page 17: Installation
INSTALLATION Basic Installation Design and Portable or modular building placement must be in a way that the wall mount units have a constant supply Application Planning of outdoor air for proper unit operation. Make sure that Successful unit installations require proper planning the service panels of the unit are accessible. -
Page 18: Ducted Applications
5/8". It is recommended that a unit supply and return flanges before unit installation to Bard Return Air Grille Kit is installed that is designed help with duct connections inside the structure. Supply specifically for the wall mount product. Contact the and return ducts must be properly sized for the design local Bard distributor or visit www.bardhvac.com for... -
Page 19: Materials/Tool List
Materials/Tools List is not required. Review all requirements listed on unit labels and on serial plate located on the side Additional hardware and miscellaneous supplies are of the unit. needed for installation. These items are field supplied and must be sourced before installation. This list also 2. -
Page 20: Table 2 Minimum Clearances Required To
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 C36HF C36HF C42HF C42HF 1/4" 0" 20"... -
Page 21: Figure 13 Unit Dimensions
FIGURE 13 Unit Dimensions Supply Return Width Depth Height C36HF 42.00 25.52 84.75 9.88 29.88 15.88 29.88 43.88 12.63 39.06 30.06 43.25 26.94 55.59 52.59 8.82 43.00 1.44 16.00 1.88 10.50 12.00 C42HF C48HF 42.00 25.52 92.88 9.88 29.88 15.88 29.88 43.88 12.63 45.00 30.06 49.25 35.06 61.72 58.72 8.82 43.00 1.44 16.00 10.00 13.88 15.43 C60HF All dimensions are in inches. -
Page 22: Figure 14 Mounting Instructions
FIGURE 14 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 C36HF-42HF C36HY-C42HY RAIN FLASHING... -
Page 23: Figure 15 Electric Heat Clearance
FIGURE 15 Electric Heat Clearance Typical Building Wall Frame Outside Sheeting Inside Sheeting Supply Air Unit Duct 1/4" Min. Supply Air Duct See Note Below Flange of Wall Note: Side section view of supply air duct for wall mounted unit showing 1/4"... -
Page 24: Figure 16 Wall Mounting Instructions
FIGURE 16 Wall Mounting Instructions See Figure 14 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... -
Page 25: Figure 18 Common Wall Mounting Installations
FIGURE 18 Common Wall Mounting Installations Non-Ducted Installations Ducted Installations Unit is Unit is Ceiling Ceiling sealed to sealed to wall. wall. Supply Air Duct Adjustable Supply Grille Optional Dropped Ceiling Wall Wall Mount Mount Fixed Blade Unit Unit Fixed Blade Return Grille Return Grille Indoor Area Indoor Area... -
Page 26: Wiring - Main Power
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. -
Page 27: Wiring - Low Voltage
Unit Shutdown Feature (Standard on All Models) control panel where the connections are made. (The field wire shield can be removed for wire installation.) The RT terminal is the 24VAC transformer output, If field power is supplied to the right of side of the unit, and the R terminal is the 24VAC hot terminal for the the low voltage wires can be run under the field wire operation of the equipment. -
Page 28: Freeze Protection Thermostat
(1120-445) If the unit is being installed with any ventilation package, Auto or Manual Changeover a Bard LAC kit must be installed. Failure to utilize an Dehumidification Output LAC with any heat pump can cause coil freeze up. 2 Stage Cool, 2 Stage Heat... -
Page 29: Figure 20 Programmable Thermostat Connections
BrightStat with Heat Pump Unit and Economizer, No Electric Heat Terminal Function BrightStat See TABLE: BO1 - ON/OFF VENT OUTPUT Bard #8403-081 or Terminal Functions B02 - Y2 COMP OUTPUT Bard #8403-083 B03 - Y1 COMP OUTPUT B04 - G FAN OUTPUT... -
Page 30: Figure 21 Programmable Thermostat Connections
BrightStat with Heat Pump Unit and Modulating CO2 Vent, Electric Heat Terminal Function BrightStat See TABLE: BO1 - ON/OFF VENT OUTPUT Bard #8403-081 or B02 - Y2 COMP OUTPUT Terminal Functions Bard #8403-083 B03 - Y1 COMP OUTPUT B04 - G FAN OUTPUT... -
Page 31: Figure 22 Non-Programmable Thermostat Connections
Non-Programmable Thermostat Connections T4 Pro 8403-095 8403-047 ELECTRONIC HUMIDISTAT T6 Pro 8403-090 or 8403-092 8403-100 U/DEH U/DEH 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 MIS-4064 L ALL VENT OPTIONS PLUG IN HERE If not equipped with a ventilation option to plug in, a jumper plug must be installed. -
Page 32: Start Up
Topping Off System Charge of liquid, any further rise in temperature will cause it to burst. If a leak has occurred in the system, Bard Manufacturing recommends reclaiming, evacuating Important Installer Note (see manual 2100-810) and charging to the nameplate For improved start-up performance, wash the indoor charge. -
Page 33: Three Phase Scroll Compressor Start Up Information
Three Phase Scroll Compressor Start Condenser Fan Operation Up Information NOTE: Certain models may be equipped with a low ambient control (LAC), and if so, the condenser Scroll compressors, like several other types of fan motor will have a delayed start until system compressors, will only compress in one rotational refrigerant operating pressure builds up. -
Page 34: Heating Stage 1
If the unit is being installed with any ventilation package, sequence in a matter of seconds and will automatically a Bard LAC kit must be installed. Failure to utilize an terminate the defrost sequence. LAC with any heat pump can cause coil freeze up. -
Page 35: Figure 23 Defrost Control Board
FIGURE 23 Defrost Control Board TIME (SEC) LOW PRESSURE BYPASS TIMER SWITCH 120* *(FACTORY SETTING 120 SECONDS) ACCUMULATED DEFROST TIME TIMER (FACTORY SETTING 60 MIN.) Model Setting MIS-2668 A C36HF C42HF C48HF C60HF This can be used to check defrost operation of the unit In order to terminate the defrost test, the SEN JMP jumper must be removed. -
Page 36: Low Pressure Switch Bypass Operation
LED will have a fast blink rate when in the compressor To change a Coremax valve without first removing the time delay. In some instances, it is helpful to the refrigerant, a special tool is required which can be service technician to override or speed up this timing obtained at www.fastestinc.com/en/SCCA07H. -
Page 37: Service
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. -
Page 38: Checking Temperature Sensor Outside Unit Circuit
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. -
Page 39: Troubleshooting Ecm Tm Indoor Blower Motors
Troubleshooting ECM Indoor Blower Motors CAUTION: Disconnect power from unit before removing or replacing connectors, or servicing motor. To avoid electric shock from the motor’s capacitors, disconnect power and wait at least 5 minutes before opening motor. Do’s and Dont’s Symptom Cause/Procedure Don’t... -
Page 40: Replacing Ecm Control Module
Replacing ECM Control Module 7. Verify that the replacement control is correct for the application. Refer to the manufacturer’s The following steps must be taken to replace the authorized replacement list. Using the wrong control module for the GE variable-speed indoor blower control will result in improper or no blower motor: operation. -
Page 41: Figure 24 Control Disassembly
FIGURE 24 Winding Test Control Disassembly Control Disassembly Motor Connector (3-pin) From Motor Push until Latch Seats Over Ramp Circuit Board Motor Winding Test Control Disassembly Motor OK when R > 100k ohm Motor Connector (3-pin) From Motor Push until Latch Seats Drip Loop Over Ramp... -
Page 42: Figure 27 Control Connector Motor Half
TABLE 10 Troubleshooting ECM Indoor Blower Motors Continuous Heat Pump Full Heat Pump Full Load Mode of Blower Full Load Dehum. Mode Full Load w/ Emergency Load Heat w/ 1st & 2nd Bank of Operation (Ventilation Cooling (when equipped) 1st Bank of Heat Mode Pump Elec. -
Page 43: Refrigerant Leak Detection System (Rds)
Refrigerant Leak Detection System Why RDS? (RDS) R-454B refrigerant carries an "A2L" safety classification, meaning it is mildly flammable in This unit is equipped with a refrigerant leak detection certain concentrations. The purpose of the RDS is to system (RDS). This system monitors the air in the prevent refrigerant from reaching potentially dangerous indoor section of the unit for refrigerant leaks. -
Page 44: Power Up And Self Test
Failure Mode and the sensor will need to be replaced. external alarm or notify a building management The sensor must be replaced with a Bard-approved system or thermostat that a leak has occurred. refrigerant sensor. See unit replacement parts manual for the correct replacement sensor information. -
Page 45: Figure 30 Refrigerant Leak Detection System (Rds) Troubleshooting
FIGURE 30 Refrigerant Leak Detection System (RDS) Troubleshooting Is the Unit in Mitigation Mode? Check RDS Sensor LED LED Light LED Light LED Light LED Light LED Light LED Light is Solid is Solid or is Blinking is Solid or is Blinking is Solid Blinking... -
Page 46: Figure 31 Refrigerant Leak Detection System (Rds) Wiring Diagram
FIGURE 31 Refrigerant Leak Detection System (RDS) Wiring Diagram NOTE: RELAY OUTPUTS ARE DEPICTED RDS Sensor IN ALARM/NON-POWER STATE BLACK/WHITE YELLOW/RED BLACK/WHITE YELLOW/RED GRAY BLACK/WHITE BLACK/WHITE 9-Pin RDS Plug 4211-101 A NOTE: RELAY OUTPUTS ARE DEPICTED RDS Sensor IN ALARM/NON-POWER STATE BLACK/WHITE YELLOW/RED BLACK/WHITE... -
Page 47: Fan Blade Setting Dimensions
Fan Blade Setting Dimensions Condenser Coil Cleaning Access Shown in Figure 32 is the correct fan blade setting 1. Disconnect all power to the unit. for proper air delivery across the outdoor coil. Refer to 2. On the side opposite of the compressor, remove the Table 11 for unit specific dimension. -
Page 48: Table 12A Cooling Pressures - Full Load
TABLE 12A Cooling Pressures – Rated Airflow Air Temperature Entering Outdoor Coil °F Return Air Model Temp Pressure (DB/WB) Suction Pressure 75/62 Head Pressure Suction Pressure C36HF 80/67 Head Pressure Suction Pressure 85/72 Head Pressure Suction Pressure 75/62 Head Pressure Suction Pressure C42HF 80/67... -
Page 49: Table 12B Cooling Pressures - Part Load
TABLE 12B Cooling Pressures – Part Load Air Temperature Entering Outdoor Coil °F Return Air Model Temp Pressure (DB/WB) Suction Pressure 75/62 Head Pressure Suction Pressure C36HF 80/67 Head Pressure Suction Pressure 85/72 Head Pressure Suction Pressure 75/62 Head Pressure Suction Pressure C42HF 80/67... -
Page 50: Table 13A Heating Pressures - Full Load
TABLE 13A Heating Pressures – Rated Airflow Air Temperature Entering Outdoor Coil Return Air Model Temp Pressure 0°F 5°F 10°F 15°F 20°F 25°F 30°F 35°F 40°F 45°F 50°F 55°F 60°F (DB) -17.7°C -15°C -12.2°C -9.4°C -6.6°C -3.8°C -1.1°C 1.6°C 4.4°C 7.2°C 10°C 12.7°C 15.5°C Suction Pressure C36HF Head Pressure... -
Page 51: Table 14 Electrical Specifications C**Hf
TABLE 14 Electrical Specifications − C**HF Series Single Circuit Multiple Circuit No. Field Minimum Maximum Rated Volts Model Power Circuit External Fuse or Minimum Maximum & Phase Circuits Ampacity Circuit Breaker Circuit External Fuse or Ampacity Circuit Breaker Circuit Circuit... -
Page 52: Unit Airflow
Unit Airflow Dirty Filter Switch These units are equipped with a variable speed (ECM) 1. Disconnect all power to the unit. Remove control indoor motor that automatically adjusts itself to panel outer cover and upper front panel. maintain approximately the same rate of indoor airflow 2. -
Page 53: Dirty Filter Switch Adjustment
Dirty Filter Switch Adjustment 5. Replace the upper front panel and repeat Steps 1-3. Continue to make adjustments described in 1. Apply power to the unit. Step 4 until the desired restriction is obtained. 2. Turn the unit indoor blower on (energize R-G on 6. -
Page 54: Table 15 Indoor Airflow Status And Unit Performance
TABLE 15 Indoor Airflow Status and Unit Performance Cooling & Cooling & Maximum Blower Heating Heating Electric Rated Model Only 1st Stage 2nd Stage Heat (CFM) (CFM) C36HF 0.15 0.50 1100 1100 C42HF 0.15 0.50 1250 1250 C48HF... -
Page 55: Table 17 Vent And Control Options
TABLE 17 Vent and Control Options Part Number Description CMC-32 Start Kit (230V 1-Phase) CMC-33 Dirty Filter Switch Kit CMC-35 Alarm Relay CMC-38 Crankcase Heater – 230V CMC-39 Crankcase Heater – 460V CMH-40 Low Ambient Control – On/Off (LAC) CMH-36 Outdoor Thermostat (ODT) Low Ambient Control and Outdoor Thermostat –... -
Page 56: Table 18 Optional Accessories
TABLE 18 Optional Accessories EHCH036A-A10 EHCH036A-A15 EHCH036A-B05 EHCH036B-B09 EHCH036A-C05 EHCH036A-C09 EHCH036A-C15 EHCH042A-A05 EHCH042A-A10 EHWA042A-B05 EHCH042A-B15 EHCH048A-A05 EHCH048A-A10 EHCH048A-A15 Heater Kits EHCH048A-B05 EHCH048A-B09 EHCH048A-B15 EHCH048A-C05 EHCH048A-C09 EHCH048A-C15 EHCH060B-A05 EHCH060B-A10 EHCH060B-A15 EHCH060A-A20 EHCH060A-B09 EHCH060A-B15 EHCH060A-C05 EHCH060A-C09 EHCH060A-C15 WMCBC-04A WMCBC-03B WMCBC-06C Circuit WMCBC-05A Breaker Kits WMCBC-04B... -
Page 57: Graphs
GRAPH 1 CH FAD-NE5 Without Exhaust Ventilation Delivery GRAPH 2 CH FAD-BE5 With Exhaust Ventilation Delivery Manual 2100-805 Page 57 of 58... -
Page 58: Delivery
GRAPH 3 C36H & C42H CRV-FS Ventilation Delivery GRAPH 4 C48H & C60H CRV-FS Ventilation Delivery Manual 2100-805 Page 58 of 58...
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