PGC Inc. Horizontal 500-1000 CFM June 2006
Parameter Generation and Control, Inc.
8
Electrical Connections
CAUTION
Turn all electrical switches, circuit breakers, and motor starter protectors
(MSPs) off to prevent accidental starting of equipment when power is
connected.
NOTE
Determine voltage and current requirements of equipment before making
electrical connections. This information is on a data plate attached to the
machine.
Connect the air handler in accordance with all applicable codes, using a customer-
supplied disconnect device.
The SmartPad™ user interface and the optional circular chart recorder can be located
remote from the air handler. Typically, the controller is located on the front of the
chamber to be controlled. These components are usually disconnected for shipment and
must be re-connected prior to operation. Refer to the attached wiring diagrams for re-
connection information.
NOTE
The SmartPad™ user interface interconnect cable has a maximum voltage
of 24VDC. Refer to local codes to determine the proper conduit
requirements for the control cable.
The optional circular chart recorder can be powered by 24VDC or
120/230VAC. Refer to the wiring diagrams or the data plate on the
recorder for more information.
CAUTION
The compressor and blower will not
operate properly and may be damaged if
permitted to run backward. After the
Conditioner has filled with water and is
operating, observe the rotation of the
blower through the air bypass damper.
Ensure that the blower is turning as
indicated in the diagram below. If
necessary, turn off the wall disconnect and
interchanging any two phase wires at the
wall disconnect or of the line connection terminals. Exchanging
phases at this point will reverse the rotation of all 3-phase motors.
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