Trane CGCN Installation Operation & Maintenance page 38

BUFFER TANKS ARE INSTALLED IN THE HYDRAULIC CIRCUIT. THE BUFFER TANKS INSTALLATION IS
STRONGLY RECOMMENDED IN ORDER TO GUARANTEE THE OPTIMAL UNIT OPERATION.
SPECIFY BUFFER TANK CAPACITY: __________
THE PRESSURE RELIEF VALVE IS INSTALLED BETWEEN DELIVERY AND RETURN PIPES.
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.
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 IN-
STALLED ON WATER PIPES AND TANKS).
FOR FURTHER TECHNICAL INFORMATION PLEASE REFER TO TECHNICAL DOCUMENTATION PROVI-
DED. PLEASE NOTE THAT ANTIFREEZE PROTECTIONS ARE MANDATORY FOR OUTDOOR AIR TEMPE-
RATURESLOWER THAN 3°C.
THE WATER CIRCUIT IS FILLED WITH ETHYLENE GLYCOL. ETHYLENE GLYCOL "%" SHALL CONFORM
TO THE DATA PROVIDED IN THE TECHNICAL DOCUMENTATION.
ALL WATER PIPES ARE GROUND CONNECTED (IN ORDER TO AVOID ABNORMAL VOLTAGES THAT
CAN CAUSE DANGEROUS CORROSIONS).
THE EVAPORATOR WATER FLOW IS COMPLIANT TO THE TECHNICAL DOCUMENTATION PROVIDED
BY TRANE.
THE WATER PUMPS ARE CORRECTLY SET UP IN ACCORDANCE WITH THE PLANT WATER FLOW,
AVAILABLE HEAD PRESSURE AND PRESSURE DROP.
THE PUMP IMPELLERSARE MECHANICALLY UNBLOCKED AND UNCLOGGED (FREE FROM ANY KIND
OF COSTRAINT).
DATE: AUTHORIZED SERVICE:
NAME AND SIGNATURE
LT
CUSTOMER:
NAME AND SIGNATURE