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Summary of Contents for Trane Geothermal 2GE Series
- Page 1 Geothermal 2GE Series Outdoor Split Heat Pump Installer’s Guide R-410A Refrigerant 2, 3, 4, 5 and 6 Tons Dual Capacity T2GE 18-GL06D1-6...
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Page 2: Table Of Contents
GE SERIES SPLIT INSTALLER’S GUIDE Table of Contents Model Nomenclature ..................4 General Installation Information ..............5 Water Quality ....................8 Water Piping ....................9 Electrical Data ....................10 Thermostat Wiring ..................10 Dimensional Data ..................11 Physical Data ....................11 Air Handler Compatibility ................12 Physical Data - Air Handler ................13 Refrigerant Coil Compatibility ..............13 Wiring Schematics ..................14 Microprocessor Control ................18... -
Page 3: Model Nomenclature
GE SERIES SPLIT INSTALLER’S GUIDE MODEL NOMENCLATURE Model Vintage T – Envirowise * - Factory Use Only Compressor Type Type Flow Center Option 2 – Dual Capacity pacity A – One Pump Flow center B – Two Pump Flow center Product Category Coax Option G –... -
Page 4: General Installation Information
GE SERIES SPLIT INSTALLER’S GUIDE Air Coil Location GENERAL INSTALLATION Refer to the air handler manufacturer’s instructions for the INFORMATION blower coil unit for details on installing the air handling portion of the system. SAFETY CONSIDERATIONS Condensate Drain ▲ WARNING Follow the blower coil manufacturer’s instructions. - Page 5 GE SERIES SPLIT INSTALLER’S GUIDE Utilizing Existing Coil or Air Handler An air fi lter must always be installed upstream of the air coil on the return air side of the air handler or furnace. If there is It is recommended that a new R-410A air handler or CGX limited access to the fi...
- Page 6 GE SERIES SPLIT INSTALLER’S GUIDE Dual Fuel Systems GE Series units can be connected to fossil fuel furnaces that include an A-coil or slab coil. Dual fuel installations utilize the GE Series heat pump for heating until the point that auxiliary heat is called for on the thermostat.
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Page 7: Water Quality
GE SERIES SPLIT INSTALLER’S GUIDE corrosion, algae or slime. Purchase of a pre-mix antifreeze WATER QUALITY could signifi cantly improve system reliability if the water quality It is the responsibility of the system designer and installing is controlled and there are additives in the mixture to inhibit contractor to ensure that acceptable water quality is present corrosion. -
Page 8: Water Piping
GE SERIES SPLIT INSTALLER’S GUIDE Flow Center Installation WATER PIPING Flow centers FC1-GL or FC2-GL, as needed, are factory Residential GE Series Outdoor Split units are supplied installed and included with unit. FC1-GL is standard on standard with GeoLink swivel connections with P.T. ports. *2GE026-049 and FC2-GL is standard on *2GE064-072. -
Page 9: Electrical Data
GE SERIES SPLIT INSTALLER’S GUIDE ELECTRICAL DATA General Be sure the available power is the same voltage and phase as that shown on the unit serial plate. Line and low voltage wiring must be done in accordance with local codes or the National Electric Code, whichever is applicable. -
Page 10: Dimensional Data
GE SERIES SPLIT INSTALLER’S GUIDE DIMENSIONAL DATA Cabinet Dimensions and Refrigerant Piping Connections Top View Front View Rear View WATER OUT WATER IN Suction Line Connection Lineset connections are braze type Liquid Line Connection internally mounted Side View Side View MODEL 36.0 23.9... -
Page 11: Air Handler Compatibility
GE SERIES SPLIT INSTALLER’S GUIDE AIR HANDLER COMPATIBILITY INDOOR SPLIT OUTDOOR SPLIT ELECTRIC HEAT ELECTRIC HEAT AIR HANDLER MODEL (DUAL MODEL (DUAL AIRFLOW (CFM) SINGLE-PHASE 3-PHASE (KW) CAPACITY) CAPACITY) (KW) TAMGA0A24 2GN026 2GE026 5,8,10 TAMGA0C36 2GN038 2GE038 1250 5,8,10,15 10,15 TAMGA0C48 2GN049 2GE049... -
Page 12: Physical Data - Air Handler
GE SERIES SPLIT INSTALLER’S GUIDE PHYSICAL DATA - AIR HANDLER AIR HANDLER MODEL NUMBER TAMGA0A24 TAMGA0C36 TAMGA0C48 TAMGA0C60 (REFRIGERANT) AIR COIL TOTAL FACE AREA, FT2 3.67 [0.34] 5.50 [0.51] 5.96 [0.55] 5.96 [0.55 [M2] TUBE OUTSIDE DIAMETER - IN. 3/8 [9.52] [MM] NUMBER OF ROWS EVAPORATOR... -
Page 13: Wiring Schematics
GE SERIES SPLIT INSTALLER’S GUIDE WIRING SCHEMATICS Dual Capacity Split - 208-230/60/1 Loop Pump(s) 1/2 HP 208-230/60/1 Gray(9) Pump Pump Blue Black Unit Power Yellow(8) 208-230/60/1 Tan (16) Capacitor Heat Recovery Unit Red (11) Red (12) Green/Yellow Brown (15) Crankcase Heater Orange (14) Black Black... - Page 14 GE SERIES SPLIT INSTALLER’S GUIDE Dual Capacity Split - 208-230/60/1 cont. Logic Board - Physical Layout Notes Connection of remote unit that does not have a loop pump for linking operation. 24V Accessory relay (see SW2 - 3 for description of operation) 3 - Field installed DPDT dual fuel relay.
- Page 15 GE SERIES SPLIT INSTALLER’S GUIDE Dual Capacity Split with IntelliStart - 208-230/60/1 Blue Loop Pump(s) Black 1/2 HP 208-230/60/1 Run Winding IntelliStart Gray(9) Pump Pump Active Pink Unit Power Yellow(8) Start Blue 208-230/60/1 Common Black Tan (16) Capacitor Heat Recovery Unit Red (11) Red (12)
- Page 16 GE SERIES SPLIT INSTALLER’S GUIDE Dual Capacity Split with IntelliStart - 208-230/60/1 cont. Logic Board - Physical Layout Notes Connection of remote unit that does not have a loop pump for linking operation. 24V Accessory relay (see SW2 - 3 for description of operation) 3 - Field installed DPDT dual fuel relay.
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Page 17: Microprocessor Control
GE SERIES SPLIT INSTALLER’S GUIDE Fault Retry MICROPROCESSOR CONTROL All faults are retried twice before fi nally locking the unit out. The GE control system is a microprocessor-based printed The “fault retry” feature is designed to prevent nuisance circuit board conveniently located in the unit control box for service calls. -
Page 18: High Pressure
GE SERIES SPLIT INSTALLER’S GUIDE High Pressure This lockout mode occurs immediately when the normally Logic Board - Dual Capacity closed safety switch is momentarily opened. Low Pressure This lockout mode occurs when the normally closed switch is opened for 30 continuous seconds. Freeze Detection (Water Flow) This lockout mode occurs when the freeze detection thermistor temperature (located between the TXV and coax) is at or below... -
Page 19: Dip Switch Settings
GE SERIES SPLIT INSTALLER’S GUIDE DIP SWITCH SETTINGS DIP SWITCH DESCRIPTION OFF POSITION ON POSITION NUMBER NOT USED SERVICE/TEST MODE - ALLOWS CONTROL OF “NORM” OR “TEST” OPERATIONAL MODES. TEST MODE ACCELERATES MOST TIMING FUNCTIONS 16 TIMES TO ALLOW FASTER TROUBLESHOOTING. TEST NORM TEST MODE ALSO ALLOWS VIEWING THE “CURRENT”... -
Page 20: Refrigeration
GE SERIES SPLIT INSTALLER’S GUIDE If an air handler manufactured by others is used then REFRIGERATION refrigerant should be added to the split system factory pre- charge. Refrigerant should be added for liquid line length. This Leak Testing should result in a slightly under-charged system exhibiting The refrigeration line set must be pressurized and checked low subcooling and high superheat. -
Page 21: Line Set Sizes
GE SERIES SPLIT INSTALLER’S GUIDE Determining Subcooling Measure the temperature of the liquid line on the small refrigerant line (liquid line) just outside the split cabinet. This location will be adequate for measurement in both modes unless a signifi cant temperature drop in the liquid line is anticipated. -
Page 22: Pressure/Temperature Conversion Chart For R-410A
GE SERIES SPLIT INSTALLER’S GUIDE PRESSURE/TEMPERATURE CONVERSION CHART FOR R-410A PRESSURE PRESSURE PRESSURE TEMP PRESSURE PRESSURE TEMP °F TEMP °F TEMP °F TEMP °F (PSIG) (PSIG) (PSIG) °F (PSIG) (PSIG) 63.5 96.3 120.6 140.0 64.2 96.8 120.9 140.3 11.2 64.8 97.2 121.3 140.6... -
Page 23: Operating Parameters
GE SERIES SPLIT INSTALLER’S GUIDE OPERATING PARAMETERS First Stage Operation Cooling -- No Desuperheater T2GE026 thru T2GE064 T2GE072 T2GE026 thru T2GE072 Entering Water Flow Suction Discharge Suction Discharge Water Air Temp Water GPM/Ton Pressure Pressure Pressure Pressure Superheat Subcooling Temp Drop Temp °F PSIG... -
Page 24: Pressure Drop
GE SERIES SPLIT INSTALLER’S GUIDE PRESSURE DROP COMPRESSOR RESISTANCE 208-203/60/1 Dual Capacity Unit Model No. Run Winding Start Winding Pressure Drop (psi) (ohms) (ohms) Model 30°F 50°F 70°F 90°F 110°F 1.23-1.41 1.30-1.50 .829-.954 1.19-1.38 full .590-.679 1.41-1.62 load .455-.524 .558-.643 .344-.395 .495-.570 part... -
Page 25: Refrigerant Circuit Guideline
GE SERIES SPLIT INSTALLER’S GUIDE REFRIGERANT CIRCUIT GUIDELINE WATER COMPRESSOR SUPER AIR TEMP. HEAD SUCTION SYMPTOM TEMP. PRESSURE PRESSURE AMP DRAW HEAT COOLING DIFF DIFF UNDER CHARGED SYSTEM HIGH (POSSIBLE LEAK) OVER CHARGED SYSTEM HIGH HIGH HIGH NORMAL HIGH NORMAL/LOW NORMAL HIGH/ LOW AIR FLOW HEATING... -
Page 26: Reference Calculations, Legend, And Operating Limits
GE SERIES SPLIT INSTALLER’S GUIDE 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 S/T = SC... -
Page 27: Startup
GE SERIES SPLIT INSTALLER’S GUIDE Adjust the cooling setpoint above the room temperature STARTUP and verify that the compressor and water valve or loop Before Powering Unit, Check The Following: pumps deactivate. • High voltage is correct and matches nameplate. 10. - Page 28 GE SERIES SPLIT INSTALLER’S GUIDE Heating Cycle Analysis Measure suction temperature here at TXV bulb in heating modes. Measure suction Volts ____ Suct PSI____ temperature here in cooling modes. Amps ____ Suct sat temp____ Suct temp____ Super heat____ Refrigerant flow Lineset length HtgTXV...
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Page 29: Troubleshooting
GE SERIES SPLIT INSTALLER’S GUIDE If control responds improperly: TROUBLESHOOTING a. Ensure that component being controlled is Standard Microprocessor Controls functioning (compressor, blower, reversing valve, To check the unit control board for proper operation: etc.). Disconnect thermostat wires at the control board. b. -
Page 30: Preventive Maintenance
GE SERIES SPLIT INSTALLER’S GUIDE PREVENTIVE MAINTENANCE REPLACEMENT PROCEDURES Water Coil Maintenance Obtaining Parts Keep all air out of the water. An open loop system When ordering service or replacement parts, refer to the should be checked to ensure that the well head is not model number and serial number of the unit as stamped on allowing air to infi... -
Page 31: Service Parts List
SKHPE600 Low Pressure Switch Kit SKHPE40 Part numbers subject to change 1/12/2015 Trane www.Trane.com The manufacturer has a policy of continuous product American Standard and product data improvement and reserves the right to change design and specifi cations without notice.
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