McQuay & Remington Model PTAC/PTHP Instructions for Disconnecting
the Electric Heater
Group: Unitary
Date: April 2006
Installation & Maintenance Data
IM 841
Procedure
1. Unplug the unit power cord from the power supply
receptacle.
2. Remove the two screws and unlatch the front panel by
pulling on the lower corners. Lift the front panel off and set
aside.
3. Reach in between the control box and the evaporator coil
and grasp the plug with 2 red wires. Squeeze the latches
together and pull loose from the receptacle (Figures 2, 3 &
4). This will deactivate power to the heater and render it
inoperable without affecting cooling or heat pump
operation.
It is the installer’s responsibility to determine and follow
all applicable codes and regulations. This equipment pre-
sents hazards of electricity, rotating parts, sharp edges
and weight. Failure to read and follow these instructions
can result in equipment damage, severe personal injury
or death. This equipment is to be installed only by expe-
rienced, trained personnel.
WARNING
!
Disconnect all electrical power before servicing unit.
Electrical shock will cause severe injury or death.
Rigorously adhere to field wiring procedures regarding proper
lockout and tagout of components.
Sharp metal edges are a hazard, use care when servicing to
avoid contact with them.
WARNING
!
DANGER
!
CAUTION
!
Figure 1. PTAC Unit with Cover Removed
Figure 2. The Electric Heat Power Cord Consists of Two Red
Wires that Connect Under the Control Pad.
Electric Heat
Power Cord
©2006 McQuay International • www.mcquay.com • 1-800-617-8756
IM 841 / Page 1 of 2 (4/06)
®
