Trane CGCN Installation Operation & Maintenance page 37

THE COMPRESSOR OIL INDICATOR LIGHT POINTS THE MAXIMUM LEVEL.
THE INDICATOR SIGHT GLASS ON THE LIQUID LINE IS GREEN.
WARNING: THE YELLOW LIGHT INDICATES PRESENCE OF MOISTURE IN THE CIRCUIT. IN THIS CASE
PLEASE CONTACT TRANE.
WATER CIRCUIT
THE FILTER IS INSTALLED ON ALL THE HEAT EXCHANGERS INLET PIPES, AT A MAXIMUM DISTANCE OF
2 METERS FROM THE UNIT.
PLEASE NOTE THAT THE FILTER INSTALLATION IS MANDATORY. FOR FURTHER TECHICAL INFORMA-
TION RELATING THE FILTER PLEASE REFER TO THE TECHNICAL DOCUMENTATIONS.
THE FLOW SWITCH HAS BEEN INSTALLED AND ELECTRICALLY CONNECTED. PLEASE NOTE THAT
FLOW SWITCH INSTALLATION IS MANDATORY.
THE VALVES ON THE WATER PLANT MUST BE OPENED. PLEASE BE AWARE THAT IF THE UNIT IS POW-
ERED (OR IN STAND-BY MODE) PUMPS WILL START IF THE WATER TEMPERATURE IS EQUAL OR BE-
LOW 4°C. CLOSING THE VALVES MAY THEREFORE CAUSE SEVERE DAMAGES.
DRAINAGE VALVES ARE INSTALLED. THE DRAINAGE VALVES ARE INSTALLED ON THE LOWEST
POINT. THE UTILIZATION OF AUTOMATIC DRAINAGE VALVES IS RECOMMENDED.
AUTOMATIC OR MANUAL PURGE VALVES ARE INSTALLED.
AUTOMATIC OR MANUAL PURGE VALVES ARE INSTALLED ON THE HIGHEST POINT.
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 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 TECHICAL 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 DI-
MENSIONAL DRAWINGS.
RUBBER JOINTS ARE INSTALLED ON THE HYDRAULIC CONNECTIONS, IN ORDER TO MINIMIZE VI-
BRATIONS BETWEEN THE UNIT AND WATER PIPES.
SHUTOFF VALVES ARE INSTALLED ON THE HYDRAULIC CIRCUIT.
THE EXPANSION TANK IS INSTALLED ON THE HYDRAULIC CIRCUIT. EXPANSION TANK CAPACITY
CONCURS WITH THE WATER PLANT CAPACITY.
TEMPERATURE PROBES AND PRESSURE GAUGES ARE INSTALLED ON THE HYDRAULIC CIRCUIT,
BOTH INLET AND OUTLET SIDE.
THE HYDRAULIC CIRCUIT IS FREE FROM OBSTRUCTION OR ANY KIND OF CONSTRAINT.