Manual

B. Auto Changeover Thermostat

A single stage thermostat with dual stages of heating and auto changeover is needed. The recommended Thermostat/

Subbase combination is the Honeywell T-874C/Q 674E.

ThermostatTerminal Jumper Wire to PTAC Terminal

Y & W2 YES N/A

Y N/A Y

Wl N/A W

R N/A R

G N/A G

Unit Terminal Board

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Thermostat Terminals

2. Installation

Follow Steps 1 through 5 (pages 4 and 5), then: ('/R _)

6. Locate the terminal strip on the right side of the control box. Attach

the thermostat subbase wires (field supplied) to the appropriately

labeled terminals as per widng diagram on the side of the chassis.

NOTE: No connections are made to the

"C" Terminal when one of the

manufacturer's thermostat subbases is

used.

Carefully route the wires alongside the conduit

or service cord. Attach the other end of the wires

to the appropriate terminals on the thermostat

subbase. See thermostat directions for proper

widng and mounting of thermostat.

If the filter is not in place, install as shown.

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