Electronic Thermostat Installation | 29ES Series
T111970291 (2015/01)ES Series
ELECTRONIC THERMOSTAT
INSTALLATION
Position the thermostat subbase against the wall
so that it is level and the thermostat wires
protrude through the middle of the subbase. Mark
the position of the subbase mounting holes and
drill holes with a 3/16-inch bit. Install supplied
anchors and secure base to the wall. Thermostat
wire must be 8-conductor, 18-AWG wire. Strip the
wires back 1/4-inch (longer strip lengths may
cause shorts) and insert the thermostat wires into
the connector as shown. Tighten the screws to
ensure secure connections. The thermostat has
the same type connectors, requiring the same
wiring. See instructions in the thermostat for
detailed installation and operation information.
Figure # 21 Thermostat Wiring
Figure # 22
NOTE: When using a 2-cool, 3-heat thermostat
W1 and W2/EM must be connected together via
a jumper. (Figure#22)
24VAC (Hot)
24VAC (Common)
Compressor (1st Stage)
Compressor (2nd Stage)
Auxiliary Heat
Reversing Valve
Blower Relay
System Monitor
R
C
Y1
Y2
w
O
G
L
MICROPROCESSOR CONTROLLER
THERMOSTAT CONNECTION
THERMOSTAT
PACKAGED
HEAT PUMP
Y
G
C
O
R
Y
G
B
R
W2
C
O
E
B
W1
W2
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