Installation Instructions

9
The units are designed for operation on 60 hertz current and at
voltages as shown on the rating plate. All internal wiring in the unit
is complete. It is necessary to bring in the power supply to the
contactor as shown on the unit wiring diagram which is supplied
with each unit. The low voltage wiring must be connected between
the unit control panel and the room thermostat.
SINGLE STAGE THERMOSTAT
To use a single stage thermostat, move jumper located to the left of
the terminal strip labeled “Stage Delay” from NONE to “5” or “10”
minutes. This selection will cause the control to run on low stage for
the selected time (5 or 10 minutes) then shift to HIGH STAGE. This
option controls both cooling and heating modes. If the jumper is
not moved, only low-stage cool and low-stage heat will operate.
Refer to the unit wiring diagram for electrical connections. When
installed, the unit must be electrically grounded in accordance
with local codes or in the absence of local codes, with the
National Electrical Code, ANSI/NFPA No. 70, and/or the CSA C22.1
Electrical Code. Ensure low voltage connections are waterproof.
For unit protection, use a fuse or HACR circuit breaker that is in excess of the circuit ampacity, but less than or equal to the maximum
overcurrent protection device. DO NOT EXCEED THE MAXIMUM OVERCURRENT DEVICE SIZE SHOWN ON UNIT DATA PLATE.
R C W1W2
GY1Y2
R
Y2
CY1
W1
G
W2
I ntegrated
Control Module
Thermostat
Two-Stage Heating
with
Two-Stage Cooling
Two-Stage Heating with Two-Stage Cooling
Thermostat Diagram
5 MINUTE DELAY
PERIOD WITH
JUMPER IN THIS
POSITION
10 MINUTE DELAY
PERIOD WITH
JUMPER IN THIS
POSITION
Two-Stage Heating (timed) and Two-Stage Cooling (timed)
with Single Stage Thermostat Diagram