Manual Override Switches; Wiring Diagrams - Data Aire gForce Ultra Installation, Operation And Maintenance Manual

3.12

Manual Override Switches

For testing and during start-up each gForce Ultra unit is provided with manual override slide switches.
There are seven (7) slide switches. One for each of the following functions:
All automatic control is disabled but the safety switches remain functional. Simply slide the manual
switches to energize the fan, compressor(s), humidification, reheat and other functions (as appli-
cable).
The fan speed of the Electronically Commutated (EC) plug fan motor can be adjusted from 0 to 10
volts DC by adjusting the potentiometer at the left of the Fan Speed switch. The fan speed will in-
crease 10% of the fan base speed for each one (1) volt adjustment (e.g., one (1) volt equals 10%
speed). At ten (10) volts the motor is at full speed.
WARNING:
the OFF position when completing testing and/or start-up. An alarm will be
activated if units are left in the ON position.
3.13

Wiring Diagrams

Every Data Aire evaporator, condenser, condensing unit or fluid cooler comes with a wiring diagram.
These diagrams are ladder type schematics intended for service personnel. The intent is to allow the
technician to understand the wiring details associated with the electrical components and how they
interface with the controls as well as peripheral equipment (including secondary heat exchangers).
The wiring diagram in the evaporator will indicate field interface terminals to the secondary heat ex-
changer. The internal wiring of the secondary heat exchanger is found on a separate diagram which
can be found on the inside cover of the heat exchanger electrical box. Both diagram types are also
placed inside the shipping/warranty packet secured in the evaporator section.
Do not leave the unit in manual override. Slide the switches to
Water Valve
Fan Speed
Humidifier
Heat 1
Cool 2
Cool 1
Blower
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