Trane CXAO Installation Operation & Maintenance page 42

Check list – mandatory operation control before start up
THE HYDRAULIC CIRCUIT HAS BEEN FILLED AND PURGED.
THE PLANT SHALL BE PURGED SEVERAL TIMES BEFORE STARTING UP THE UNIT. THE FILTER
INSTALLED NEXT TO THE HEAT EXCHANGER SHALL BE CLEANED SEVERAL TIMES BEFORE STARTING
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UP THE UNIT, UNTIL THE CORRECT DELTA T IS ASSURED AND THE HYDRAULIC PRESSURE IS
CONFORM TO THE PLANT AND TO THE WATER PRESSURE DROPS. FOR FURTHER TECHNICAL
INFORMATIONS PLEASE REFER TO TRANE DOCUMENTATIONS AND PROCEDURE FOR THE FIRST
START UP.
HYDRAULIC CONNECTIONS TO THE UNIT ARE COMPLIANT WITH THE UNIT NAME PLATE AND
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DIMENSIONAL DRAWINGS.
RUBBER JOINTS ARE INSTALLED ON THE HYDRAULIC CONNECTIONS, IN ORDER TO MINIMIZE
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VIBRATIONS BETWEEN THE UNIT AND WATER PIPES.
36 SHUTOFF VALVES ARE INSTALLED ON THE HYDRAULIC CIRCUIT.
THE EXPANSION TANK IS INSTALLED ON THE HYDRAULIC CIRCUIT. EXPANSION TANK CAPACITY
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CONCURS WITH THE WATER PLANT CAPACITY.
TEMPERATURE PROBES AND PRESSURE GAUGES ARE INSTALLED ON THE HYDRAULIC CIRCUIT,
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BOTH INLET AND OUTLET SIDE.
39 THE HYDRAULIC CIRCUIT IS FREE FROM OBSTRUCTION OR ANY KIND OF CONSTRAINT.
BUFFER TANKS ARE INSTALLED IN THE HYDRAULIC CIRCUIT. THE BUFFER TANKS INSTALLATION IS
STRONGLY RECOMMENDED IN ORDER TO WARRANTY THE OPTIMAL UNIT OPERATION.
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SPECIFY BUFFER TANK CAPACITY: __________ LT
THE PRESSURE RELIEF VALVE IS INSTALLED BETWEEN DELIVERY AND RETURN PIPES.
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WARNING!: IN ORDER TO AVOID WATER-HAMMER, THE RELIEF VALVE PRESSURE SHALL BE SET
UP IN ACCORDANCE WITH THE STANDARD OPERATING PRESSURE OF THE WATER CIRCUIT.
THE AUXILIARY HEATING SYSTEM IS INSTALLED IN THE WATER CIRCUIT IN ORDER TO AVOID THE
START-UP OF THE UNIT WITH WATER TEMPERATURE BELOW 18°C. BEFORE STARTING UP THE UNIT
THE INLET WATER TEMPERATURE MUST BE EQUAL OR HIGHER THAN 18°C.
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WARNING!: THE UNIT SHALL NEVER WORK (NOT EVEN FOR SHORT PERIODS) WITH AN INLET
WATER TEMPERATURE LOWER THAN 18°C.
ANTIFREEZE PROTECTIONS ARE INSTALLED IN THE WATER CIRCUIT (ELECTRICAL HEATERS ARE
INSTALLED ON WATER PIPES AND TANKS).
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FOR FURTHER TECHICAL INFORMATION PLEASE REFER TO TECHNICAL DOCUMENTATION
PROVIDED. PLEASE NOTE THAT ANTIFREEZE PROTECTIONS ARE MANDATORY FOR OUTDOOR AIR
TEMPERATURES LOWER THAN 3°C.
THE WATER CIRCUIT IS FILLED WITH ETHYLENE GLYCOL. ETHYLENE GLYCOL "%" SHALL BE
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CONFORM WITH THE DATA PROVIDED IN THE TECHNICAL DOCUMENTATION.
ALL WATER PIPES ARE GROUND CONNECTED (IN ORDER TO AVOID ABNORMAL VOLTAGES THAT
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CAN CAUSE DANGEROUS CORROSIONS).
THE EVAPORATOR WATER FLOW IS COMPLIANT TO THE TECHNICAL DOCUMENTATION PROVIDED
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BY TRANE.
THE WATER PUMPS ARE CORRECTLY SET UP IN ACCORDANCE WITH THE PLANT WATER FLOW,
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AVAILABLE HEAD PRESSURE AND PRESSURE DROP.
THE PUMP IMPELLERS ARE MECHANICALLY UNBLOCKED AND UNCLOGGED (FREE FROM ANY KIND
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OF OBSTRUCTION).
DATE:
"*" mandatory.
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AUTHORIZED SERVICE:
NAME AND SIGNATURE
CUSTOMER:
NAME AND SIGNATURE
RF-SVX003A-GB