26 ● gForce Ultra User Manual 10-2014
3. ELECTRICAL CONNECTIONS
WARNING:
The Data Aire cooling unit must be connected by a licensed
and qualified electrician. Risk of electrical shock could result in injury or
death. Disconnect all remote electrical power supplies prior to working on
the unit. Follow all local codes.
NOTE:
Disconnect switches are optional. The disconnect switch when
turned OFF will de-energize the high voltage.
WARNING:
Before proceeding with the electrical connections, make
certain that the volts, hertz and phase correspond to that specified on the
unit electrical nameplate. Use copper conductors only.
3.1 Electrical Service
Check to be sure the electrical service provided by the utility is sufficient to handle the
additional load imposed by this equipment. Most units with secondary heat exchangers
will require a separate power source and field provided interconnecting wires (see
Section 3.5).
Remote condensers will typically require one power source. Glycol systems with fluid
coolers and loose pump(s) typically require one power source for the fluid cooler and
will require one additional source for single pump or two additional sources for dual
pumps. Systems where the pump(s) are mounted and piped integral to the fluid cooler
will usually require a single power source.
3.2 Nameplate Ratings
Refer to the unit electrical nameplate for equipment electrical requirements. Minimum
circuit ampacity (MCA), also known as wire sizing amps, will dictate the minimum
required wire gauge. Maximum Overcurrent Protection (MOP) device amps will dictate
the maximum breaker or fuse size.
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