AEC ACOA Series Air-Cooled Central Chillers - Manual (Page 34)

5 Startup and Operation
5-1 Introduction
Important!
AEC, Inc. includes factory startup for ACOA chillers.
• New chillers are started up by AEC, Inc.’s local qualified refrigeration service
representative.
• Installation must be completed before startup is requested. See Section 5-2
below.
• Have your own service and operating personnel present during startup to
assist the AEC representative and to be trained in ACOA operation and
maintenance.
• Upon arrival, the AEC representative inspects the installation to see if it
meets AEC, Inc. requirements, performs the initial startup, determines if the
system is in satisfactory operating condition, and instructs specified on-site
personnel in operation and maintenance for the length of time specified in
the purchase contract.
• Make sure the sump oil heaters are energized for at least 24 hours before the
AEC Service representative arrives for the startup.
• Call AEC/Application Engineering service at [800] 233-4819 to request
startup services.
5-2 Pre-Startup Checklist
An ACOA chiller is ready for initial start-up when:
Process water piping for the evaporator is installed and tested.
Electrical connections are made and properly fused.
The chiller transformer primary voltage connections are configured for the electrical power
you are using.
The voltage at the main power connection reads within plus or minus ten percent (±10%) of
the voltage listed on the serial tag and not have an imbalance exceeding two percent (2%).
The chiller has been leak tested, any leaks corrected, and refrigerant charge completed.
The compressor crankcase heater(s) have been energized for a minimum of 24 hours.
ACOA Series Air-Cooled Central Chillers
Page 33