Data Aire gForce GT series User Manual

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3.0 ELECTRICAL CONNECTIONS
Before proceeding with the electrical connections, make certain that the volts, hertz and
phasecorrespondtothatspeciedontheunitelectricalnameplate.Usecopperconduc-
tors only.
3.1 Electrical Service
Checktobesuretheserviceprovidedbytheutilityissufcienttohandletheadditionalloadimposed
by this equipment. Most units with secondary heat exchangers will require a separate power source
andeldprovided,interconnectingwires(seeSection3.5).
Remotecondenserswilltypicallyrequireonepowersource.Glycolsystemswithuidcoolersand
loosepump(s)typicallyrequireonepowersourcefortheuid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uidcoolerwillusuallyrequireasinglepowersource.
3.2 Nameplate Ratings
Refer to the unit electrical nameplate for equipment electrical requirements. Minimum circuit am-
pacity, (MCA) also known as wire sizing amps, will dictate the minimum required wire gauge. Maxi-
mum Overcurrent Protection (MOP) device amps will dictate the maximum breaker or fuse size.
3.3 Grounding
The unit cabinet must have an uninterrupted true earth ground. An electrical ground wire of ad-
equate size must be connected to the ground lug provided inside the main electrical box.
3.4 Voltage Tolerance
The supply voltage to the unit must be within 10% of the voltage indicated on the unit electrical
nameplate. Phase to phase imbalance must not exceed 3%. The local utility company should be
contacted for correction of improper line voltage. Deviation from voltage ratings can cause prema-
ture failures and possibly void unit warranties.
Check the wiring connections in the unit control panel to ensure they are tight. Screw
terminals may become loose in transit. Tightening of wiring connections is the respon-
sibility of the installing contractor.
3.5 Auxiliary Control Wiring
Theinterconnectionofauxiliarycontrolwiringforremoteheatexchangers(condensersanduid
coolers) requires the connection of two (2) - 18-gauge wires for installations up to 150 feet (45 m) or
16-gauge wires for installations from 151 feet (46 m) up to 200 feet (61 m) from the electrical control
box of the indoor evaporator to the electrical control box of the remote heat exchanger. Condensing
units (i.e., where the compressor(s) are mounted in the remote heat exchanger) will typically require
(4) or more wiring connection points and may require heavier gauge wire. In this case, the installing
contractor must follow the applicable electrical codes to determine the required wire gauge.
Because of the wide variety of indoor evaporators and remote heat exchangers offer by Data Aire,
the installing contractor must refer to the schematic which is provided inside the electrical control
box of each unit, for the required auxiliary control wiring interconnection terminal points.

Data Aire gForce GT series Specifications

General

Brand	Data Aire
Model	gForce GT series
Category	Air Conditioner
Language	English