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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 min-
utes) 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 volt-
age connections are waterproof.
R
C
W1
W2
R C W1W2 G Y1 Y2
Two-Stage Heating with Two-Stage Cooling Thermostat Diagram
Thermostat
Two-Stage Heating
Y2
with
Two-Stage Cooling
Y1
G
ntegrated
I
Control Module
Two-Stage Heating(timed) and Two-Stage Cooling(timed) with
Single Stage Thermostat Diagram
To avoid the risk of electrical shock, wiring to the unit must
be polarized and grounded.
To avoid risk of property damage, personal injury or fire,
use only copper conductors.
To prevent improper and dangerous operation due to
wiring errors, label all wires prior to disconnection when
servicing controls. Verify proper operation after servicing.
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.
Unit Voltage
Rated
Minimum Supply
Voltage
208/230V
All line voltage connections must be made through weath-
erproof fittings. All exterior power supply and ground wiring
must be in approved weatherproof conduit.
NOTE: A dedicated ground wire must be run from
the unit to the electrical panel.
DO NOT use gas piping, or conduit as an electrical ground.
Low voltage wiring from the unit control panel to the ther-
mostat requires coded cable. See below for ground level
and rooftop wiring.
NOTE: The unit transformer is factory connect-
ed for 240V operation. If the unit is to operate on
208V, reconnect the transformer primary lead as
shown on the unit wiring diagram.
11
5 MINUTE DELAY
PERIOD WITH
JUMPER IN THIS
POSITION
10 MINUTE DELAY
PERIOD WITH
JUMPER IN THIS
POSITION
WARNING
CAUTION
WIRING
Maximum Supply
Voltage
Voltage
197
253
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