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Explains the meaning of WARNING and CAUTION symbols used in the manual.
Contractor's responsibilities during unit installation.
Methods to protect the unit from freezing.
General advice and warnings for electrical installation.
Guidelines for sizing and selecting power supply wiring.
Wiring for chilled water pump flow proving interlock.
Wiring for an external emergency stop function.
Procedure for starting the unit daily.
Procedure for seasonal unit start-up.
Procedures to restart the unit after a prolonged shutdown.
Procedures for shutting down the unit.
Procedure for extended shutdown.
Procedures to minimize refrigerant emissions.
Importance of proper refrigerant and oil charge.
Specific procedure for field charging R134a refrigerant.
Monitoring and adjusting refrigerant charge.
Procedure to isolate refrigerant on the high-pressure side for repairs.
Procedure to isolate refrigerant on the low-pressure side for repairs.
Steps to add refrigerant to recharge the unit.
Procedure for changing the refrigerant filter.
Procedures for charging oil into the system.
Procedure for initial oil charging of new or serviced units.
Procedure for field charging oil into the unit.
Procedure to check the evaporator heat tape.
Safety advice for maintenance and service visits.
Verifying power supply, phase, and connections before starting.
Ensuring correct phase sequence to prevent equipment damage.
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