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Geostar Sycamore Series Operation & Maintenance Manual

60hz
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OPERATION & MAINTENANCE
Sycamore Series
60HZ
IGW7-0018G

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Summary of Contents for Geostar Sycamore Series

  • Page 1 OPERATION & MAINTENANCE Sycamore Series 60HZ IGW7-0018G...

  • Page 2: For The User

    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

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Table of Contents UNIT OVERVIEW Nomenclatures ............... .6 AHRI Data.

  • Page 4: General Installation Information

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL General Installation Information No person carrying out work in relation to a REFRIGERATING NOTICE: Do not store or install units in corrosive environments SYSTEM which involves exposing any pipe work shall use any or in locations subject to temperature or humidity extremes.

  • Page 5: Installation Space Requirements

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Nomenclature Brand IntelliStart G – GeoStar 0 – None Model 7 – Sycamore Mitigation 1 – Sensor Mitigation Type A – Water to Air Controls D – Aurora Premium Control Cabinet Configuration (Performance and Refrigeration V –...

  • Page 7: Ahri Data

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL AHRI Data The performance standard AHRI/ASHRAE/ISO 13256-1 became effective January 1, 2000 and replaces ARI Standards 320, 325, and 330. This new standard has three major categories: Water Loop (comparable to ARI 320), Ground Water (ARI 325), and Ground Loop (ARI 330).
  • Page 8 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL AHRI Data Variable Speed Residential AHRI Data ECM Motor AHRI/ASHRAE/ISO 13256-1 English (IP) Units Water Loop Heat Pump Ground Water Heat Pump Ground Loop Heat Pump Flow Rate Cooling Heating Cooling Heating Cooling Heating...

  • Page 9: Physical Data

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Physical Data Model Compressor (1 each) Variable Speed Scroll Factory Charge R454B, oz [kg] Vertical 64 [1.81] 64 [1.81] 95 [2.69] 110 [3.12] Factory Charge R454B, oz [kg] Horizontal 60 [1.70] 60 [1.70] 91 [2.58] 118 [3.35]...

  • Page 10: Dimensional Data

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Dimensional Data - Vertical Top Air Discharge LEFT RETURN RIGHT RETURN 1.9in [4.8cm] 1.9in [4.8cm] 2 ft [61 cm] I K J D E H F Primary Service Access FRONT RIGHT SIDE LEFT SIDE Return Connection Electrical Connections...
  • Page 11 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Dimensional Data - Vertical Bottom Air Discharge RIGHT RETURN LEFT RETURN 1.70 6 in [15.2 cm] (4.3 cm) MINIMUM CLEARANCE TO VENT ACCESS PANEL LEFT SIDE RIGHT SIDE 1.90 (4.7 cm) FRONT LEFT BOTTOM DISCHARGE RIGHT BOTTOM DISCHARGE...
  • Page 12 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Dimensional Data - Vertical Rear Air Discharge 1.90 in. [4.8 cm] 6 in [15.2 cm] 1.90 in. MINIMUM CLEARANCE [4.8 cm] TO VENT ACCESS PANEL FRONT 2 ft [61 cm] Primary Service Access REAR VIEW SIDE VIEW SIDE VIEW...
  • Page 13 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Dimensional Data - Horizontal TOP VIEW 2.1in [5.4cm] MOUNT (2) HANGER BRACKETS HORIZONTAL AS SHOWN TO ALLOW ACCESS TO FILTER 6 in [15.2 cm] MINIMUM CLEARANCE 2 ft [61 cm] TO VENT ACCESS Primary Service Access PANEL...

  • Page 14: Electrical Data

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Electrical Data Max Fuse Rated Voltage COMP Drive Ext Loop Blower Total Unit Minimum Model COMP MRC Drive RLA Pump HACR Voltage Min/Max Internal Fuse Motor FLA Circuit Amp Breaker 024-036 208-230/60/1 187/253 22.0...

  • Page 15: Blower Performance Data

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Blower Performance Data Variable Speed Air Flow Model Max ESP Speed 1 Speed 2 Speed 3 Speed 4 Speed 5 Speed 6 Speed 7 Speed 8 Speed 9 Speed 10 Speed 11 Speed 12 1100 1220 1440...

  • Page 16: Reference Calculations

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Reference Calculations Heating Calculations: Cooling Calculations: LWT = EWT + LWT = EWT - gpm x 500 gpm x 500 LAT (DB) = EAT (DB) - LAT = EAT + cfm x 1.08 cfm x 1.08 LC = TC - SC TH = HC + HW...

  • Page 17: Antifreeze Corrections

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Antifreeze Corrections Catalog performance can be corrected for antifreeze use. Please use the following table and note the example given. Antifreeze Type Antifreeze % by wt Heating Cooling Pressure Drop EWT - °F [°C] 30 [-1.1] 90 [32.2] 30 [-1.1]...

  • Page 18: Correction Factor Tables

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Correction Factor Tables Air Flow Corrections (Compressor Speeds 1-3) Airflow Cooling Heating CFM Per Ton % of Nominal Total Cap Sens Cap Power Heat of Rej Htg Cap Power Heat of Ext of Clg 0.940 0.740...

  • Page 19: Heat Of Extraction/Heat Of Rejection

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Heat of Extraction/Heat of Rejection Heat of Extraction (MBtuh) Heat of Rejection (MBtuh) Model 30°F 50°F 70°F 90°F 30°F 50°F 70°F 90°F 110°F 22.5 32.5 41.7 49.1 39.1 44.1 42.8 40.3 37.9 23.2 33.9...

  • Page 20: Water Quality

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Water Quality Material Copper 90/10 Cupronickel 316 Stainless Steel Acidity/Alkalinity 7 - 9 7 - 9 7 - 9 Calcium and (Total Hardness) (Total Hardness) (Total Hardness) Scaling Magnesium Carbonate less than 350 ppm less than 350 ppm less than 350 ppm Less than 0.5 ppm (rotten egg...

  • Page 21: Operating Parameters

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Operating Parameters 024 - Comp Speed 8 - 850 CFM Cooling -- No Hot Water Generation Entering Water Water Flow Temp °F Suction Pressure psig Discharge Pressure psig Superheat Subcooling Water Temp Rise °F Air Temp Drop °F DB 109-114 116-126...

  • Page 22: Pressure Drop

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Pressure Drop Pressure Drop (psi) Model 30° F 50° F 70° 90° F 110° F 11.5 3.60 3.30 3.10 2.90 2.70 2.30 2.10 2.00 1.90 1.70 1.50 1.40 1.30 1.20 1.10 024-036 1.20 1.15...

  • Page 23: Operation Logic Data Table

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Operation Logic Derating Heating Mode The VS compressor utilizes ‘envelope control’ to When the variable speed controls determine that heating maintain performance within operational limits and is needed in the space the blower will be turned on, the improve reliability.

  • Page 24: Aurora Controls Operation

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Aurora Control System The Aurora AXB expands on the capability of the ABC control Aurora Advanced VS Control board. The additional features include active dehumidification, Aurora Advanced VS Control SuperBoost cooling mode, loop pump linking, intelligent System is a complete residential hot water generator control, variable speed pump capability, and commercial comfort system...

  • Page 25: Control Features

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Aurora Control System Add On Control Feature Kits Description Aurora Advanced VS (field or factory Installed) Monitors real time power consumption of compressor, blower, aux heat and pump. Geo Energy Monitoring Kit Standard Requires thermostat TPCM32U04A or TPCC32U02.
  • Page 26 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Aurora Control System VS Drive and Envelope Control Loop Pump Linking The VS drive operates the compressor between 20 and 100% This input and output are provided so that two units can be capacity.
  • Page 27 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Aurora Control System Home Automation 2 – E24 HA2 ‘SuperBoost’ Cooling Mode With a closed dry contact signal, this input will cause an alarm Occasionally there can be a requirement for a short term and Alert Code 24 to indicate on the stat or flash on ABC.
  • Page 28 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Aurora Control System (green) will be continuously lit, for low speed LED1 (red) will DIP 4 & 5 - Accessory Relay2: A second, DIP configurable, be continuously lit, and for high speed both LED3 (green) and accessory relay is provided that can be cycled with the LED1 (red) will be continuously lit.

  • Page 29: Operation Description

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Aurora Control System Condensate Overflow - fault is recognized when the impedance Basic Aurora Safety Features between this line and 24 VAC common or chassis ground drops The following safety features are provided to protect the below 100K ohms for 30 seconds continuously.
  • Page 30 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Aurora Control System Blower (G) - The blower will start immediately upon receiving a thermostat G command. If there are no other commands from the thermostat the variable speed ECM will run on low speed until the G command is removed.
  • Page 31 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Aurora Control System ABC Control Board Layout AXB Control Board Layout See Figure 1 for See Figure 1 for DHW wiring. DHW wiring. LED 1 LED 1 LED 2 LED 2 FP1 –...
  • Page 32 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Aurora Control System Variable Speed 2.0 LED Status LED Code Full Description Removal Normal operation of the heat pump Microprocessor is not operational Board replacement Speeds some timings for faster Slow Flash troubleshooting.
  • Page 33 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Aurora Control System ASB Sensor Board Refrigerant Leak Detection The Aurora control system uses the ASB control board to monitor the refrigerant sensor and determine when a fault condition requiring mitigation has been recognized and is active.
  • Page 34 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Aurora Control System...

  • Page 35: Refrigerant Circuit Guideline

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Refrigerant Circuit Guideline Head Suction Compressor Air Temp. Water Temp. Symptom Superheat Subcooling Pressure Pressure Amp Draw Differential Differential Under Charged System (Possible Leak) High Over Charged System High High High Normal High Normal/Low...

  • Page 36: Electrical Information

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Electrical Information General Accessory Relay Be sure the available power is the same voltage and phase A set of “dry” contacts has been provided to control as that shown on the unit serial plate. Line and low voltage accessory devices, such as water solenoid valves on open loop wiring must be done in accordance with local codes or installations, electronic air cleaners, humidifiers, etc.

  • Page 37: Electronic Thermostat Installation

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Electronic Thermostat Installation Position the thermostat subbase against the wall so that it is Figure 15: Thermostat Wiring (Communicating Style Signals) level and the thermostat wires protrude through the middle of the subbase. Mark the position of the subbase mounting C 24VAC (Common) C 24VAC (Common) holes and drill holes with a 3/16-inch bit.

  • Page 38: Electrical Information Flow Centers

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Electrical Information Fixed Speed Flow Center The pump(s) will be connected to the terminals on PB1 in the unit electrical box as shown in Figure 3a. The pumps will automatically be cycled as required by the unit or by a signal from another unit sharing the flow center (See Figures 5 and 6). Pumps are protected by circuit breakers (CB) shown in Figure 3a.
  • Page 39 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Electrical Information - Flow Centers Variable Speed Flow Center cont. Two Pump Variable Speed Flow Center If a variable speed two pump flow center is used, the flow center will come with four red and two green wires for the high voltage wiring.
  • Page 40 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Electrical Information - Flow Centers (cont.) Fixed Speed Flow Center The pump(s) will be connected to the terminals on PB1 in the unit electrical box as shown in Figure 3a. The pumps will automatically be cycled as required by the unit or by a signal from another unit sharing the flow center (See Figures 5 and 6).
  • Page 41 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Electrical Information - Flow Centers (cont.) Two Pump Variable Speed Flow Center cont. The use of the black wire on the left hand pump (Bottom on NP/NPD with 2 VS pumps in same circuit) is ONLY to be connected for troubleshooting of the pumps.

  • Page 42: Closed Loop/Open Loop Ground Source Systems

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Closed Loop Ground Source Systems NOTE: For closed loop systems with antifreeze protection, Figure 7: Closed Loop Ground Source Application set SW2-1 to the “LOOP” (15°F) position. (Refer to the DIP Switch Settings table in the Aurora Control section.) Auxiliary Heat ®...
  • Page 43 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Closed Loop Ground Source Systems cont. Multiple Units on One Flow Center Figure 8: Primary/Secondary Hook-up When two units are connected to one loop pumping system, Aurora Control to Aurora Control to Aurora Control to pump control is automatically achieved by connecting the Aurora Control Units...
  • Page 44 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Open Loop Ground Water Systems Figure 9a: Modulating Water Valve Connection Option Typical open loop piping is shown below. Always maintain water pressure in the heat exchanger by placing water Typical 0-10VDC modulating water valve. control valves at the outlet of the unit to prevent mineral precipitation.

  • Page 45: Compressor And Thermistor Resistance

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Compressor & Thermistor Resistance Thermistor Resistance (10k Ohm) Winding Resistance at 70 °F Thermistor Resistance (1k Ohm) for FP1, FP2, HWL, suction line, Model Compressor Model No. for compressor discharge line, 208-230/60/1 LAT, LWT and LLT compressor ambient and EWT...

  • Page 46: Unit Startup

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Unit Startup Before Powering Unit, Check the Following: the HW switch on the front cabinet) ii. DHW Setpoint – 130 °F is the default NOTE: Remove and discard the compressor hold down but can be changed from 100 to 140 °F shipping bolt located at the front of the compressor mounting iii.

  • Page 47: Startup Steps

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Unit Startup cont. Once sensors are installed for discharge pressure, suction Configuring the Sensor Kits pressure, suction, liquid line cooling, liquid line heating, and Configuring the Sensor kits leaving air temperature no further setup is required. The Aurora Advanced Control allows Refrigeration, Energy, a.

  • Page 48: Operating Limits

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Unit Startup cont. First stage cooling will energize after a time delay. heating mode. Heating set point must be set above room Be sure that the compressor and water control valve or temperature.

  • Page 49: Replacement Procedures

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Preventative Maintenance cont. Blower Motors ECM blower motors are equipped with sealed ball bearings and require no periodic oiling. Hot Water Generator Coil See Water Coil Maintenance section above. PinnaCoil™ Air Coil The air coil must be cleaned to obtain maximum performance.

  • Page 50: Aurora Interface Diagnostic (Aid) Tool

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Aurora Interface Diagnostic (AID) Tool Aurora Input-Output Diagnostics LED Displays Slow Flash = 1 second on and 1 second off Troubleshooting the Aurora logic board Fast Flash = 100 ms on and 100 ms off can be accomplished using nothing more Flash Code = 100 ms on and 400 ms off with a 2 second pause than a couple of jumper wires and a volt...

  • Page 51: Troubleshooting Checklist

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Troubleshooting Checklist • Water flow may be restricted or inadequate. Verify in Equipment will not start or operate accordance with the pressure drop tables shown in product • Follow the troubleshooting flow charts to find root cause. install manual.

  • Page 52: Control Board Troubleshooting Steps

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Control Board Troubleshooting Steps 1) General Check measurement from the refrigerant line. The temperature should be within +/- 2° F. If not, replace the thermistor. • If any new device was installed, or any wiring was changed, check the connections to ensure the wiring is correct, and Other items to check when troubleshooting a water flow all the wires are in good condition.
  • Page 53 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Control Board Troubleshooting Steps 4) Other Faults 5) Thermistor ECM Motor Will Not Start Disconnect the thermistor from the board and measure 1. Measure the voltage output between P13-1 and P13-5. ohms.

  • Page 54: Control Board Troubleshooting Flow Charts

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Control Board Troubleshooting Flow Charts cont. 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...
  • Page 55 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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...
  • Page 56 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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 57 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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 58 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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...
  • Page 59 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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...
  • Page 60 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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 61 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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...

  • Page 62: Variable Speed Pump

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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...
  • Page 63 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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...
  • Page 64 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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...
  • Page 65 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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...

  • Page 66: Communicating Thermostat Troubleshooting Guide

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Communicating Thermostat Troubleshooting Guide TPCC32U01*, TPCM32U03A* and TPCM32U04A* (*GSR, GSM, E, YRK) Thermostat not 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...
  • Page 67 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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...

  • Page 68: Control Board Signals

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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 69 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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 70 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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 71: Jumping The Control Board

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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”...

  • Page 72: Emergency Heat

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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”...

  • Page 73: Reheat Mode

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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 74: Sensor Locations

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Troubleshooting Sensor Locations Leaving Water Thermistor (Sensor Wire Wrapped 4 Water Times Around Water Line) Blower Entering Water Thermistor Coax (Sensor Wire Flow Wrapped 4 Sensor Times Around Water Line) Coil Water Flow Meter Entering Water...

  • Page 75: Cooling Cycle Analysis

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Troubleshooting Startup/ roubleshooting Form Controls Info: Dealer: ABC Version: AXB Version: Phone #: Date: Problem: IZ2 Version: Model #: T-Stat Version: Installed Sensors: Serial #: COOLING CYCLE ANALYSIS SAT °F °F °F °F High Speed...
  • Page 76 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Troubleshooting...

  • Page 77: Performance Data

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Performance Data 024 - 50% Part Load HEATING - EAT 70°F COOLING - EAT 80/67 °F Flow Flow Airfl ow Power Airfl ow Power °F °F MBtuh MBtuh °F MBtuh MBtuh MBtuh Ratio MBtuh...
  • Page 78 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Performance Data 024 - 100% Full Load HEATING - EAT 70°F COOLING - EAT 80/67 °F Flow Flow Airfl ow Power Airfl ow Power °F °F MBtuh MBtuh °F MBtuh MBtuh MBtuh Ratio MBtuh...
  • Page 79 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Performance Data 036 - 50% Part Load HEATING - EAT 70°F COOLING - EAT 80/67 °F Flow Flow Airfl ow Power Airfl ow Power °F °F LAT °F COP MBtuh MBtuh MBtuh MBtuh MBtuh...
  • Page 80 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Performance Data 036 - 100% Full Load HEATING - EAT 70°F COOLING - EAT 80/67 °F Flow Flow Airfl ow Power Airfl ow Power °F °F MBtuh MBtuh °F MBtuh MBtuh MBtuh Ratio MBtuh...
  • Page 81 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Performance Data 048 - 50% Part Load HEATING - EAT 70°F COOLING - EAT 80/67 °F Flow Flow Airfl ow Power Airfl ow Power °F °F LAT °F COP mBtuh MBtuh MBtuh MBtuh MBtuh...
  • Page 82 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Performance Data 048 - 100% Full Load HEATING - EAT 70°F COOLING - EAT 80/67 °F Flow Flow Airfl ow Power Airfl ow Power °F °F LAT °F COP mBtuh MBtuh MBtuh MBtuh MBtuh...
  • Page 83 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Performance Data 060 - 50% Part Load HEATING - EAT 70°F COOLING - EAT 80/67 °F Flow Flow Airfl ow Power Airfl ow Power °F °F mBtuh MBtuh °F MBtuh MBtuh MBtuh Ratio MBtuh...
  • Page 84 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Performance Data 060 - 100% Full Load HEATING - EAT 70°F COOLING - EAT 80/67 °F Flow Flow Airfl ow Power Airfl ow Power °F °F LAT °F COP mBtuh MBtuh MBtuh MBtuh MBtuh...

  • Page 85: Service Parts List

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Service Parts List Parts List - Horizontal Compressor 208-230/60/1 34P676-01 34P676-01 34P677-01 34P678-01 Sound Jacket 92P504A05 92P504A05 92P504A05 92P504A05 Compressor Power Harness 11P853-01 11P853-01 11P853-01 11P853-01 ECM Motor 208-230/60/1 14S575-01 14S575-01 14S576-01 14S577.01 ECM EON...
  • Page 86 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Service Parts List Parts List - Vertical Compressor 208-230/60/1 34P676-01 34P676-01 34P677-01 34P678-01 Sound Jacket 92P504A05 92P504A05 92P504A05 92P504A05 Compressor Power Harness 11P853-01 11P853-01 11P853-01 11P853-01 ECM Motor 208-230/60/1 14S575-01 14S575-01 14S576-01 14S577.01 ECM Motor...

  • Page 87: Decommissioning

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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 88: Refrigerant Recovery

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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 89: Charging Procedures

    VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL 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 90 VARIABLE SPEED PACKAGED HEAT PUMP OPERATION AND MAINTENANCE MANUAL Notes...

  • Page 91: Revision Guide

    Revision Guide Pages: Description: Date: 16 Feb 2024 Document Creation...
  • Page 92 *OMW7-0018G* Product: Sycamore Series Type: Variable Speed Geothermal/Water Source Heat Pump Size: 3-6 Ton Variable Speed Document Type: Installation Guide Part Number: OMW7-0018G Release Date: 08/24 ©2024 The manufacturer has a policy of continual product research and development and reserves the right to change design and specifi cations without notice.

This manual is also suitable for:

Sycamore 024Sycamore 036Sycamore 048Sycamore 060

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