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| Pro Refrigeration, Inc
STEP 9
Open all Refrigerant Valves on the chiller refrigeration systems. Quantity of valves and location vary based on
compressor/condensing unit make. Check name plate and documentation to confi rm the make of your chiller’s
compressor/condensing unit.
To OPEN, remove Valve Stem Covers and adjust valve stem all the way out by turning counter clockwise. It is
advised to have a refrigeration technician open these valves, it may require the use of a special valve wrench to
open.
STEP 10
Compressor/Condensing unit fuses are shipped inside the main electrical enclosure in a plastic bag. Install these
into the fuse block associated with your condensing unit. If chiller has circuit breakers switch them to the ON
position.
Danfoss Condensing Units:
* Receiver Valve
(located on small receiver tank),
* Suction Service Valve
(located on compressor)
* Discharge Service Valve
(located on compressor).
Emerson Condensing Units:
* Receiver Valve
(located on small receiver tank),
* Suction Service Valve
(located near accumulator)
WARNING
Verify that all external power sources have been removed before servicing
System with fuse blocks
System with circuit breakers
Receiver Valve
SuctionValve
Discharge Valve
Suction Valve
ReceiverValve
Provided Fuses
Fuse Block
Fuse Block
Circuit Breaker
Circuit Breaker
