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General| Cooling Capacity | 120 tons |
|---|---|
| Compressor Type | Screw |
| Refrigerant | R-134a |
| Voltage | 460V |
| Phase | 3 |
Covers hazards like refrigerant venting, oxygen use, test pressures, welding, electrical safety, and handling liquid refrigerant.
Important precautions and warnings regarding refrigerant charging for R-134a units.
How to identify and verify low refrigerant charge in 30HXC systems using sightglass and EXV position.
Step-by-step procedure for adding refrigerant charge to 30HXC systems.
How to identify and verify low refrigerant charge in 30GX systems using sightglass and temperature readings.
Input usage for measuring discharge, suction, and oil pressures for unit control.
Procedure for adding oil charge to 30HXC/GX systems if low oil level alarms persist.
Fields for job name, location, contractor, distributor, and start-up personnel.
Checks for shipping damage, unit level, power supply, wiring, and connections.
Verifies operation of air handlers, water valves, piping, and air venting.
Checks condenser water valves, piping, air venting, and pump operation.
Instructions to plot condenser pressure drop and determine flow rates.
Checks CWP starter, oil heaters, valve positions, leak checks, and refrigerant leaks.
Guide for performing the TEST function and checking for alarms.
Verifies water loop volume, corrosion inhibitor, freeze protection, and piping.
Final checks before starting the chiller, ensuring service valves are open and pumps are on.
Instructions to plot cooler pressure drop and determine flow rates.
Fields to record stabilized operating temperatures and pressures for various components.
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