Sterlco S Series Central Chilling Stations - Manual (Page 37)

SCW Series Central Chilling Stations Page 37 of 77
7. Operate the chiller, looking for leaks and listening for
unusual noises or vibrations that could indicate improper
operation.
5-4 Remote Air-Cooled SCW Series Startup Checklist
; Check the shipping papers against the serial tag to be sure
chiller size, type and voltage is correct for the process.
; Check the transformer primary voltage connections to be sure
they are configured for the electrical power you are using.
; The voltage at the main power connection must read within
plus or minus ten percent (±10%) of the voltage listed on the
serial tag.
; Phase imbalance must be less than two percent (<2%).
; Electrical connections must conform to all applicable codes.
; Complete the chilled water
TO PROCESS and FROM
PROCESS connections.
; The optional or field installed chilled water supply and return
valves must be open.
; Be sure the tank and chilled water circuit piping are filled with
a water/glycol mixture. The water/glycol mix should provide
freeze protection to 20°F below the leaving water temperature
you’ve selected.
; The air cooled condenser should have an adequate supply of air
for proper operation.
; Connect the main power to the unit and bump-start it to check
for proper rotation direction. If the fans are operating
backwards, reverse any two main power leads at the incoming
terminal block.
; Remove all tools, foreign matter and debris from the pump
tank reservoir and piping.
; Complete all piping leading to and from the pump tank.
Observe all applicable codes.
; Complete all electrical wiring. Observe all applicable codes.
; Prepare all related equipment in the system for operation.
; Check for proper compressor rotation direction. To confirm
proper rotation:
1. Connect a phase meter and phase incoming power ABC.