WaterFurnace Versatec 500 Series Operation & Maintenance Manual
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WaterFurnace Versatec 500 Series Operation & Maintenance Manual

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OPERATION & MAINTENANCE
Versatec 500 Console
60HZ
OMV5-0009W
All Versatec 500 Series consoles are safety listed under UL 60335-2-40 through ETL, and
performance listed with AHRI in accordance with ASHRAE/ANSI/AHRI/ISO Standard 13256-1.

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Summary of Contents for WaterFurnace Versatec 500 Series

  • Page 1 OPERATION & MAINTENANCE Versatec 500 Console 60HZ OMV5-0009W All Versatec 500 Series consoles are safety listed under UL 60335-2-40 through ETL, and performance listed with AHRI in accordance with ASHRAE/ANSI/AHRI/ISO Standard 13256-1.
  • Page 2 Definition of Warnings and Symbols WARNING Indicates a situation that results in death or DANGER serious injury. WARNING: Before performing service or maintenance Indicates a situation that could result in operations on the system, turn off main power switches WARNING death or serious injury.

  • Page 3: Table Of Contents

    Table of Contents UNIT OVERVIEW General Installation Information............4 Nomenclatures .

  • Page 4: General Installation Information

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE General Installation Information NOTICE: Do not store or install units in corrosive environments No person carrying out work in relation to a REFRIGERATING or in locations subject to temperature or humidity extremes. SYSTEM which involves exposing any pipe work shall use any Corrosive conditions and high temperature or humidity can sources of ignition in such a manner that it may lead to the risk of fire or explosion.
  • Page 5 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE General Installation Information Installation Space Requirements WARNING NOTE: Equipment with refrigerant charge less than 64 oz does Ventilated Area: ensure that the area is in the open or that it is adequately ventilated before breaking into the system of not require have a minimum floor area requirement and does not conducting any hot work.

  • Page 6: Nomenclatures

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Nomenclature V5CC012BR0*N1CNLAANNS11SSS 24-26 Brand Non-Standard Options V – WaterFurnace SSS – None Versatec Thermostat Control Model 1 – Unit Mounted T-Stat 5 – 500 Series 2 – Remote Wall- Mounted T-Stat Type Air Coil Option Option C –...

  • Page 7: Electrical Availability

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Electrical Availability Console Voltage ● ● ● ● 208-230/60/1 ● ● ● ● 265/60/1 4/24/24 Physical Data Console Model Compressor (1 each) Rotary Factory Charge R454B, oz [kg] 22 [0.62] 22 [0.62] 26 [0.74] 26 [0.74] Fan Motor &...

  • Page 8: Dimensional Data

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Dimensional Data Chassis with Cabinet RIGHT RETURN LEFT RETURN FILTER BRACKET FILTER BRACKET DETAIL B DETAIL B FRONT TWIST EXTENDED TAB TWIST EXTENDED BACK AND FORTH UNTIL TAB BACK AND TAB BREAKS OFF FORTH UNTIL (ONLY BREAK-OFF TAB BREAKS OFF...
  • Page 9 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Dimensional Data cont. Chassis Slope Top Overall Cabinet Slope Top Configuration Grille Grille Width Depth Height Grille Lid Length Width 45.0 11.1 28.6 35.0 44.1 10.3 09-12 114.3 28.2 72.6 23.4 88.9 15.6 7.2 112.0 26.0 10.9 50.0 12.6 29.1...
  • Page 10 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Dimensional Data cont. Chassis w/ Extended Slope Top Overall Cabinet Ext. Slope Top Configuration Grille Grille Width Depth Height Grille Lid Length Width 50.0 12.6 29.1 35.0 49.1 12.0 09-12 127.0 32.0 73.9 23.4 88.9 15.6...

  • Page 11: Dimensional Data - Right Return Controls Detail

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Dimensional Data - Right Return Controls Detail...

  • Page 12: Dimensional Data - Right Return Chassis

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Dimensional Data - Right Return Chassis Data = inches (cm) Models 09-12 Models 15-18 37.88 42.88 (96.2) (108.9) 9.38 28.5 8.88 34.0 (23.8) (72.4) (22.6) (86.4) CONTROL PANEL CONTROL PANEL (3.8) (3.8) BLOWER ACCESS PANEL BLOWER ACCESS PANEL COMPRESSOR COMPRESSOR...

  • Page 13: Dimensional Data - Left Return Controls Detail

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Dimensional Data - Left Return Controls Detail...

  • Page 14: Dimensional Data - Left Return Chassis

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Dimensional Data - Left Return Chassis Data = inches (cm) Models 09-12 Models 15-18 37.88 42.88 (96.2) (108.9) 28.5 9.38 34.0 8.88 (72.4) (23.8) (86.4) (22.6) CONTROL PANEL CONTROL PANEL 1.50 1.50 (3.8) (3.8) 1.50 1.50...

  • Page 15: Electrical Data

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Electrical Data Total Compressor Rated Voltage Model Motor Unit Circ Fuse/ Voltage Min/Max HACR 208-230/60/1 187/253 27.0 10.1 265/60/1 238/292 32.0 10/15 208-230/60/1 187/253 27.0 11.1 265/60/1 238/292 32.0 10/15 208-230/60/1 187/253 10.8 33.0 10.3 12.2...

  • Page 16: Antifreeze Corrections

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Antifreeze Corrections Catalog performance can be corrected for antifreeze use. Please use the following table and note the example given. Antifreeze Cooling Heating Antifreeze Type Pressure Drop % by wt Capacity Capacity EWT - degF [DegC] 90 [32.2] 30 [-1.1] 30 [-1.1]...

  • Page 17: Correction Factor Tables

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Correction Factor Tables Cooling Capacity Corrections Sensible Cooling Capacity Multipliers - Entering DB ºF Entering Total Power Heat of Air WB ºF Clg Cap Input Rejection 80.6 0.898 0.723 0.866 1.048 1.185 0.985 0.913 0.912 0.632...

  • Page 18: Water Quality

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Water Quality In ground water situations where scaling could be heavy with extremely hard water, the owner should be informed or where biological growth such as iron bacteria will be that the heat exchanger may require occasional flushing. present, a closed loop system is recommended.

  • Page 19: Operating Limits

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Operating Limits Cooling Heating Operating Limits (°F) (°C) (°F) (°C) Air Limits Min. Ambient Air Rated Ambient Air 26.7 21.1 Max. Ambient Air 37.8 29.4 Min. Entering Air 10.0 Rated Entering Air db/wb 80.6/66.2 27/19 20.0...

  • Page 20: Operating Parameters

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Operating Parameters Single Speed Models Cooling Entering Water Water Flow Temp °F GPM/Ton Suction Discharge Water Temp Rise Air Temp Drop 09-18 Superheat 09-18 Subcooling Pressure PSIG Pressure PSIG °F °F DB 127 - 144 205 - 225 5 - 10 10 - 14...

  • Page 21: Pressure Drop

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Pressure Drop Pressure Drop (psi) Model 30°F 50°F 70°F 90°F 110°F 4/24/24...

  • Page 22: Controls - Ccm

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - CCM Control General Description Application Display/Interface Protocol Thermostat Options CCM Control The CCM (Compressor Residential and commercial Dial thermostat with Hi None Unit Mounted control module) is a more applications requiring minimal and Low fan speeds, Digital Dial reliable replacement for...
  • Page 23 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora Aurora ‘Base’ Control Field Selectable Options via Hardware DIP Switch (SW1) – Test/Configuration Button (See SW1 Operation Table) Test Mode The control is placed in the test mode by holding the push button switch SW1 for 2 - 5 seconds.
  • Page 24 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora cont. Cycle with Blower - The accessory relay will cycle with Lockout – when locked out, the blower will operate the blower output. continuously in “G” speed, and PSC blower motor output will remain on.
  • Page 25 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora cont. Over/Under Voltage Shutdown - An over/under voltage Cooling Operation condition exists when the control voltage is outside the In all cooling operations, the reversing valve directly tracks range of 18 VAC to 30 VAC. If the over/under voltage the O input.
  • Page 26 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora cont. Aurora ‘Base’ Control LED Displays Aurora Interface and Diagnostics (AID) Tool These three LEDs display the status, configuration, and The Aurora Interface and fault codes for the control. These can also be read in plain Diagnostics (AID) Tool is English via the Aurora AID Tool.
  • Page 27 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora cont. the current thermostat demand cycle. Since compressor hot Aurora ‘Advanced’ Control Features gas temperature is dependent on loop temperature in cooling The Aurora ‘Advanced’ mode, loop temperatures may be too low to allow proper Control system expands on heating of water.
  • Page 28 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora cont. Advanced Communication Ports Home Automation 2 – E24 HA2 With a closed dry contact signal, this input will cause an Communication ports P6 and P8 will provide future alarm and Alert Code 24 to indicate on the stat or flash expansion via dedicated protocols.
  • Page 29 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora cont. Special Modes and Applications Aurora ‘Advanced’ Control LED Displays These three LEDs display the status, configuration, and 5-Speed ECM Blower Motor fault codes for the control. These can also be read in plain Normally the 5-Speed ECM motor can be driven off English via the Aurora AID Tool.

  • Page 30: Controls - Aurora Upc

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora UPC Aurora UPC Controller ZS Series Sensors The Aurora Unitary Protocol Converter (UPC) is designed The Aurora UPC is implemented with the Aurora Base to add-on to any Aurora based heat pump control. The Controller (ABC) heat pump control into our latest water Aurora Unitary Protocol Convertor (UPC) is designed source heat pumps.
  • Page 31 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora UPC cont. Modbus BACnet Rnet Aurora UPC Features Aurora UPC Optional Features • Rugged enclosure made of GE C2950 Cycoloy plastic • AID Tool for Aurora ABC configuration • Built-in surge transient protection circuitry and troubleshooting.
  • Page 32 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora UPC cont. Port 1a is used to communicate to the Building Automation System (BAS). This port’s settings are 24Vac configured through the onboard dip switches. Port 2 is used to Dip switches for communicate to configuring the...
  • Page 33 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora UPC cont. Leaving Air Temperature (LAT) Sensor – This 10 kOhm Dirty Filter Switch – This optional field installed switch NTC sensor is factory installed on all UPC equipped is connected to confirm dirty filter operation. The heat pumps.
  • Page 34 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora UPC cont. Aurora Base or Advanced Control Configuration and Status Codes Status LED (LED3, Green) Description of Operation Fault LED, Green Normal Mode Control is Non-functional Test Mode Slow Flash Lockout Active Fast Flash Dehumidification Mode...
  • Page 35 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora UPC cont. Aurora Advanced Control Configuration and Options (Future Availability on Select Models/Configurations) Accessory Relay2 – A second, configurable, accessory relay on the AXB is provided that can be cycled with the compressor 1 or 2 , blower, or the Dehumidifier (DH) input.
  • Page 36 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora UPC cont. Aurora Advanced Control Optional Sensor Kits (Availability on Select Models/Configurations) Energy Monitoring (Standard Sensor Kit on Performance Monitoring (optional sensor kit) - The ‘Advanced’ models) - The Energy Monitoring Kit optional Performance Monitoring Kit includes: three includes two current transducers (blower and electric temperature sensors, entering and leaving water,...
  • Page 37 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora UPC cont. RNet Sensor Physical and Electrical Data Sensing Element Range Accuracy Temperature (on non-Humidity models) -4° to 122° F (-20° C to 50° C) ±0.35° F (0.2° C) Temperature (on Humidity models) 50°...
  • Page 38 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Controls - Aurora UPC cont. ZS Series RNet Sensor Overview This is done using (2) 18 AWG twisted pair unshielded cables for a total of 4 wires connected to the Rnet port. The ZS Series line of intelligent zone sensors provides the The sensor gets its power from the UPC controller and function and flexibility you need to manage the conditions connecting multiple sensors to one UPC will allow for space...

  • Page 39: Refrigerant Circuit Guideline

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Refrigerant Circuit Guideline Head Suction Compressor Air Temp. Water Temp. Symptom Superheat Subcooling Pressure Pressure Amp Draw Diff erential Diff erential Under Charged System (Possible Leak) High Over Charged System High High High Normal High Normal/Low...

  • Page 40: System Cleaning And Flushing

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE System Cleaning and Flushing Cleaning and Flushing Figure 7: Flushing with Water Shutoff Valve Equipped Systems Prior to start up of any heat pump, the water circulating system must be cleaned and flushed of all dirt and debris. Return Runout If the system is equipped with water shutoff valves, the supply and return runouts must be connected together at each unit location (This will...

  • Page 41: Open Loop Ground Water Systems

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Open Loop Ground Water Systems Always maintain water pressure in the heat exchanger by placing water control valves at the outlet of the unit to prevent mineral precipitation. Use a closed, bladder-type expansion tank to minimize mineral formation due to air exposure. Insure proper water flow through the unit by checking pressure drop across the heat exchanger and comparing it to the figures in unit capacity data tables in the specification catalog.

  • Page 42: Legend And Notes

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Reference Calculations Heating Calculations: Cooling Calculations: LWT = EWT - LWT = EWT + GPM x 500 GPM x 500 LAT = EAT + LAT(DB) = EAT(DB) - CFM x 1.08 CFM x 1.08 LC = TC - SC TH = HC + HWC S/T =...

  • Page 43: Compressor And Thermistor Resistance

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Compressor and Thermistor Resistance Compressor Resistance Chart 208-230/60/1 265/60/1 Model Start Start 2.48 3.17 2.56 3.08 3.29 2.56 3.08 2.15 2.28 1.93 2.16 1.81 2.21 1.93 2.16 Thermistor Resistance Thermistor Microprocessor Temperature (°F) Resistance (Ohms) 75757-70117 57392-53234...

  • Page 44: Auxilary Heat Ratings

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Auxilary Heat Ratings ECM Motors Heater Heater Total Min. Max. Rated Voltage Model Element Motor Element Unit Circuit Fuse/ Voltage Min./Max. Watts Amp. Brkr. 208/60/1 197/254 2.45 3.93 09-12 230/60/1 197/254 1000 2.60 4.35 (1 kW) 265/60/1...

  • Page 45: Control Board Flow Charts

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE CONTROL BOARD FLOW CHARTS...
  • Page 46 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Control Board Troubleshooting Flow Charts Use the following flow charts to aid in troubleshooting the control board. Compressor Will Not Start Without AID Tool Compressor will not start Count the number of Is LED3 (green) lit Is LED1 (red) flashes and compare to or flashing?
  • Page 47 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Control Board Troubleshooting Flow Charts cont. Notes: 1. When measuring 24VAC actual value may be between 18 and 30VAC. Put control into test Check 24VAC Check 24VAC Check for correct Check Compressor mode, and wait 1 between CC and across contactor voltage on T1 and...
  • Page 48 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Control Board Troubleshooting Flow Charts cont. Compressor Will Not Start With AID Tool Compressor will not start Check current fault. Connect the AID Is the control in Correct fault and try to Tool Lockout? restart.
  • Page 49 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Control Board Troubleshooting Flow Charts cont. Notes: 1. When measuring 24VAC actual value may be between 18 and 30VAC. Check 24VAC Check 24VAC Check for correct Check Compressor In “System between CC and across contactor voltage on T1 and wiring, winding...
  • Page 50 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Control Board Troubleshooting Flow Charts cont. ECM Blower Will Not Start Without AID Tool Blower will not start Check for correct voltage Remove P1 and place a Put control into test Is LED3 (green) Lit between orange and jumper between R and mode and wait 1...
  • Page 51 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Control Board Troubleshooting Flow Charts cont. Notes: 1. When measuring 24VAC actual value may be between 18 and 30VAC. There is a problem Does the blower with the thermostat or start thermostat wiring Check 24VAC Is the DC voltage on P13-1 Is the low volt ECM...
  • Page 52 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Control Board Troubleshooting Flow Charts cont. ECM Blower Will Not Start With AID Tool Blower will not start Check for correct voltage Connect AID Tool. Put control in test Is LED3 (green) Lit between orange and Remove P1 and put a mode and wait 1...
  • Page 53 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Control Board Troubleshooting Flow Charts cont. Notes: 1. When measuring 24VAC actual value may be between 18 and 30VAC. Put control into test Check 24VAC Check 24VAC Check for correct Check Compressor mode, and wait 1 between CC and across contactor voltage on T1 and...
  • Page 54 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Control Board Troubleshooting Flow Charts cont. Loop Pump Will Not Start Variable Speed Pump Loop Pump will not start Check pump wiring to Is AXB LED1 Is AXB LED1 AXB. Check (Green) Flashing flashing fast? communication wiring from ABC to AXB.
  • Page 55 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Control Board Troubleshooting Flow Charts cont. Notes: 1. When measuring 24VAC actual value may be between 18 and 30VAC. 2. When measuring 240VAC actual value may be between 190 and 250 VAC. Check 240 VAC Did the loop pump Is voltage on VS PMP Check for 240 VAC...
  • Page 56 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Control Board Troubleshooting Flow Charts cont. Loop Pump Will Not Start Non Variable Speed Pump Loop Pump will not start Check pump wiring to Is AXB LED1 Is AXB LED1 AXB. Check (Green) Flashing flashing fast? communication wiring from ABC to AXB.
  • Page 57 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Control Board Troubleshooting Flow Charts cont. Notes: 1. When measuring 24VAC actual value may be between 18 and 30VAC. 2. When measuring 240VAC actual value may be between 190 and 250 VAC. Check for 240 VAC Check 240 VAC Did the loop pump Check for 240 VAC...

  • Page 58: Communicating Thermostat Troubleshooting Guide

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Communicating Thermostat Troubleshooting Guide TPCC32U01*, TPCM32U03A* and TPCM32U04A* Thermostat not (*GSR, GSM, E, YRK) communicating Wire non- Are you using a communicating 8 Is this a variable communicating wire thermostat speed unit? thermostat? to P1 terminal on the ABC board Configure Aurora System Screen...
  • Page 59 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Communicating Thermostat Troubleshooting Guide cont. Are all Remove what is applicable not needed or add devices present what is needed. Is Issue resolved on Configure the thermostat Aurora System communicating? screen TPCM32U03A*/TPCM32U04A* Thermostat P7 on ABC Board Green Plug Is the thermostat...

  • Page 60: Control Board Signals

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Control Board Signals To Check for 24VAC between R and C a signal and the contactor is not pulled in, check voltage across the contactor coil. If you have voltage across the contractor coil, replace the contactor.
  • Page 61 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Control Board Signals cont. To Check Operation of the Accessory Relay Put gauges on the unit to monitor high/low pressure. Place a jumper between “R” and “CC” as shown. This will bypass the safety circuit and the compressor will run whether the board is calling for it or not.
  • Page 62 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Control Board Signals cont. To Check the Condensate Sensor To Check the ECM Blower Motor Enable Signal 24 VAC VOLTS VOLTS OHMS With the AID Tool go to the “Thermostat Inputs” Menu under “Diagnostics”...

  • Page 63: Jumping The Control Board

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Jumping the Control Board Stage 1 Heating Stage 2 Heating With the AID Tool go to the “Thermostat Inputs” Menu under With the AID Tool go to the “Thermostat Inputs” Menu under “Diagnostics” and over-ride the “Y1” input to ON. If an AID Tool “Diagnostics”...
  • Page 64 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Jumping the Control Board cont. Emergency Heat Stage 1 Cooling With the AID Tool go to the “Thermostat Inputs” Menu under With the AID Tool go to the “Thermostat Inputs” Menu under “Diagnostics” and over-ride the “W” input to ON. If an AID Tool “Diagnostics”...
  • Page 65 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Jumping the Control Board cont. Reheat Mode With the AID Tool go to the “Thermostat Inputs” Menu under “Diagnostics” and over-ride the “DH” input to ON. If an AID Tool is not available remove the P1 connector to disconnect the thermostat from the board.

  • Page 66: Preventative Maintenance

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Preventative Maintenance Condensate Drain Water Coil Maintenance In areas where airborne bacteria produce a slime in the drain 1. Keep all air out of the water. An open loop system should pan, it may be necessary to treat chemically to minimize be checked to ensure that the well head is not allowing air the problem.

  • Page 67: Decommissioning

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Decommissioning Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its detail. It is recommended good practice that all refriger- ants are recovered safely. Prior to the task being carried out, an oil and refrigerant sample shall be taken in case analysis is required prior to re-use of recovered refrigerant.

  • Page 68: Refrigerant Recovery

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Refrigerant Recovery When removing refrigerant from a system, either for servicing The recovered refrigerant shall be processed according to or decommissioning, it is recommended good practice that all local legislation in the correct recovery cylinder, and the refrigerants are removed safely.

  • Page 69: Charging Procedures

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Charging procedures In addition to conventional charging procedures, the following requirements shall be followed. • Ensure that contamination of different refrigerants does not occur when using charging equipment. • Hoses or lines shall be as short as possible to minimise the amount of refrigerant contained in them.
  • Page 70 WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Notes...

  • Page 71: Revision Guide

    WATER-SOURCE/GEOTHERMAL HEAT PUMP CONSOLE OPERATION AND MAINTENANCE Revision Guide Pages: Description: Date: Document Creation 14 Feb 2024...
  • Page 72 0.75-1.5 Ton Document: Operation & Maintenance OMV5-0009W 08/24 ©2024 WaterFurnace International, Inc., 9000 Conservation Way, Fort Wayne, IN 46809-9794. WaterFurnace has a policy of continual product research and development and reserves the right to change design and specifi cations without notice.

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