Trane Flex II Original Instructions Manual Download Page 7 | Manualshive

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OAT = Outdoor Air Temperature [°C]
LWT = Leaving Water Temperature [°C]

Low ambient kit down to -15°C:

•

Heater in control box

HEAT PUMP MODE

kit

-15°C

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Summary of Contents for Flex II

Page 1: ...CG SVX048A GB Original instructions Installation Operation Maintenance Flex II Air to water heat pumps with fixed speed scroll compressors...

Page 2: ...6 ELECTRICAL POWER SUPPLY 12 7 WATER CONNECTIONS 13 8 ELECTRICAL PANEL 24 9 OPERATOR RESPONSABILITIES 27 10 START UP PRELIMINARY PROCEDURES 27 12 CHECK LIST MANDATORY OPERATION CONTROL BEFORE START UP...

Page 3: ...made to the carrier for damage or for not delivery and the Receiving Card to be found inside the unit electrical panel must be filled in Photographic evidence must be provided for macroscopic damage T...

Page 4: ...means of the external knife switch check that the unit has been earthen correctly before starting it up control all the electrical connections and the connection cables paying particular attention to...

Page 5: ...only after having placed a sign which says do not use maintenance in progress if modifications must be carried out to the cooling hydraulic or electrical circuit of the unit or to its command logic c...

Page 6: ...ING LIMITS Unit operation is permitted within the limits indicated in the diagram provided in 3 3 CAUTION The operation outside the limits specified may cause the activation of the protections and dis...

Page 7: ...OAT Outdoor Air Temperature C LWT Leaving Water Temperature C Low ambient kit down to 15 C Heater in control box HEAT PUMP MODE kit 15 C...

Page 8: ...06 1 09 1 118 1 149 1 182 1 211 1 243 In order to calculate performance with glycoled solutions multiply main sizes by respective coefficients GLYCOL PERCENTAGE DEPENDING ON FREEZINGTEMPERATURE glycol...

Page 9: ...supporting structures fit shock absorbers in every fastening point Rubber shock absorbers are recommended for units installed on the ground spring shock absorbers for units installed on roofs Open sp...

Page 10: ...osition fix the antivibration bolts 4 3 PRECAUTIONS FOR DOMINANT WINDS Avoid obstacles on suction and discharge sides of the units Respect the safety distances as shown on the units dimensional drawin...

Page 11: ...ocal code 6 1 POWER CONNECTIONS Protect the unit electric box power supply circuit with protection devices not included in the supplied equipment Connect the line terminals with a three core cable of...

Page 12: ...g units with temperature around 0 C please evacuate the exchanger with compressed air in order to avoid breakings due to ice If the unit is installed in order to replace another the entire hydraulic s...

Page 13: ...eat exchanger Q max maximum water flow to the heat exchanger Tmax chiller 8 C Tmax heat pump 8 C dpw K Q 1000 Q 0 86 P T IMPORTANT If pumps driven by inverters either unit onboard pump or external pum...

Page 14: ...from weather conditions The problem of water pipes freezing could appear in two different situations 1 Stand by with mode on but electrically connected in this case the unit has frost resistances whic...

Page 15: ...the customer pump if present must always be electrically supplied alike and functioning properly 2 Addition of an appropriate amount of glycol inside the water circuit 3 Additional heat insulation an...

Page 16: ...tank Modular version with single pump Modular version with double pump and stand by pump Units can be installed in modular configuration up to a maximum of 6 units by means of a dedicated hydraulic c...

Page 17: ...6 bar Shut Off Valve Pump Water Charge Water DIscharge Check Valve Water Tank Antivibration System Flow Switch FIlter 2 Way Valve With ON OFF Servo Control Water Differential Pressure Switch Temperatu...

Page 18: ...6 bar Shut Off Valve Pump Water Charge Water DIscharge Check Valve Water Tank Antivibration System Flow Switch FIlter 2 Way Valve With ON OFF Servo Control Water Differential Pressure Switch Temperatu...

Page 19: ...Valve Pump Water Charge Water DIscharge Check Valve Water Tank Antivibration System Flow Switch FIlter 2 Way Valve With ON OFF Servo Control Flow Switch FIlter 2 Way Valve With ON OFF Servo Control 6...

Page 20: ...he flow switch and the water strainer in the customer plant are obligatory in order to keep the warranty Primary Pump Secondary Pump Temperature Probe Flow Switch Drainage Vent Valve Expansion Vessel...

Page 21: ...NT the flow switch and the water strainer in the customer plant are obligatory in order to keep the warranty Primary Pump Secondary Pump Temperature Probe Flow Switch Drainage Vent Valve Expansion Ves...

Page 22: ...y Pump Temperature Probe Flow Switch AIR CONDITIONING WATER PUMP WATER TANK FANCOIL AIR CONDITIONING WATER PUMP WATER TANK FANCOIL Drainage Vent Valve Expansion Vessel Filling Group Steel Mesh Straine...

Page 23: ...calibrate the device to compensate for the weight of the headstock If the unit is mounted to the bottom WARNINGS on deposits that can form must be made The appliance must be installed in a straight p...

Page 24: ...PARTIAL RECOVERY PB LP PRESSURE SWITCH Rliq LIQUID RECEIVER RC CARTER HEATER VA SAFETY VALVE AA LIQUID SEPARATOR FE FILTER DRIER PS SERVICE VALVE KA HP TRANSDUCER V FAN KB LP TRANSDUCER VS SIGHT GLASS...

Page 25: ...uit 230 24V It requires no additional power cable for the control equipment The unit has an antifreeze heater installed directly into the evaporator The circuit also has an electric resistance install...

Page 26: ...p of the evaporator with the calibration valve shut and then slowly open it Discharge the air from the high points of the water circuit and check the direction of the water flow Carry out a setting of...

Page 27: ...ALLED BETWEEN THE UNIT AND THE FLOOR 7 THE UNIT DISPLAYS DEFECTS OR DAMAGES RESULTING FROM MODIFICATIONS OR CHANGES UNIT TAMPERING UNAUTHORIZED MODIFICATIONS TO THE REFRIGERANT CIRCUIT OR THE HYDRAULI...

Page 28: ...ANY ADDITIONAL CONTROLLER HAS BEEN INSTALLED 18 THE CONNECTION WIRES ARE SHIELDED 19 REMOTE CONTROL DEVICES OR INTERFACES ARE CONNECTED TO THE ELECTRICAL PANEL IN CONFORMITY WITH TRANE WIRING DIAGRAMS...

Page 29: ...RT UP 33 HYDRAULIC CONNECTIONS TO THE UNIT ARE COMPLIANT WITH THE UNIT NAME PLATE AND DIMENSIONAL DRAWINGS HOT WATER INLET HOT WATER OUTLET COLD WATER INLET COLD WATER OUTLET ETC 34 RUBBER JOINTS ARE...

Page 30: ...CUMENTATION 44 ALL WATER PIPES ARE GROUND CONNECTED IN ORDER TO AVOID ABNORMAL VOLTAGES THAT CAN CAUSE DANGEROUS CORROSIONS 45 THE EVAPORATOR WATER FLOW IS COMPLIANT TO THE TECHNICAL DOCUMENTATION PRO...

Page 31: ...may mean an excess of charge After intervention on the charge it is appropriate to check that the unit runs within the declared values with unit steadily running on a full charge measure the temperatu...

Page 32: ...e at the end IMPORTANT If the unit has not been provided with integrated pump on board do not turn off the external pump before 3 minutes have elapsed after turning off the last compressor The early s...

Page 33: ...es at full load and check the oil level The units use POE oil In case of burns for the electrical motor or fault of the compressor it is necessary to make a test to check the acidity of the lubricant...

Page 34: ...circuit controlling a Overheating compressor b Overheating compressor discharge c Sub cooling of the liquid exiting the condenser coil d Evaporation pressure c Condensing pressure 15 Measure the valu...

Page 35: ...he oil in the remaining compressor and also replace the liquid line filter drier After an electrical failure of a compressor it will also be necessary to change the oil in the remaining compressor rep...

Page 36: ...or use and maintenance manual for a complete description of applications setting and adjustments All sensors are preassembled and connected to the microprocessor The descriptions of each sensor are li...

Page 37: ...te 5 X Carry out the analysis of the vibrations of the compressor X Carry out the analysis of the acidity of the oil of the compressor 7 X Check pressure safety accessories PED Condensing section Clea...

Page 38: ...ype fans and engines 1 per type 2 YEAR COMPONENTS QUANTITY fuses all filter dryers all solenoid valves all electronic expansion valves all pressure switches all gas gauges all contactors and relays al...

Page 39: ...he circuit Make sure that working conditions are within the limits of operation Loss of coolant see section G C The compressor starts up and stops repeatedly x s Intervention of the minimum See point...

Page 40: ...ck the voltage across the coil of the contactor and the continuity of the coil x s Lack of output voltage from the control fan speed Check the contacts replace if necessary x s Thermal protection insi...

Page 41: ...Water circulation pump blocked Unlock the pump x s Water circulation pump defective Check the pump and replace if necessary x s Low refrigerant charge See point G x s The liquid filter is clogged Repl...

Page 42: ...rane optimizes the performance of homes and buildings around the world A business of Ingersoll Rand the leader in creating and sustaining safe comfortable and energy efficient environments Trane offer...

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