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Caution: Risk of Electrical Shock - More than one
disconnect switch may be provided. Disconnect
all power to device before servicing.
GENERAL HVAC WIRING DIAGRAM
®
e-Stat
NOTE: HEAT
PUMPS MAY
REQUIRE
JUMPER
BETWEEN Y1
AND W1 TO
BRING ON
COMPRESSOR
IN BOTH
HEATING AND
COOLING.
CONNECT
AS REQUIRED
BY HVAC
EQUIPMENT
A1-A2-A3
CONTACT
TERMINALS
®
ON e-Stat
Remove the old thermostat from the wall making note
of the wire colors on the back of the mounting kit
provided. Thread the thermostat cable through the
hole in the back of the
securely to the wall using the hardware provided.
e-Stat
The
should be leveled for cosmetic reasons.
Connecting the Outputs
HVAC
EQUIPMENT
TERMINAL
STRIP
20-30 VAC ONLY
R
G
W1
W1
Y1
Y1
C
W2
W2
Y2
Y2
O
B
A1
A2
A3
e-Stat
SYSTEM
TRANSFORMER
CLASS 2
20-30 VAC
R
G
(COMMON)
C
REVERSING
O
VALVE (w/COOL)
REVERSING
B
VALVE (w/HEAT)
MAY BE USED
FOR NIGHT
SHUTDOWN
OF DAMPERS
OR OTHER
EQUIPMENT.
RELAY LOAD:
1 AMP (MAX)
@ 24VAC
. Mount the
4
XFMR
(COMMON)
ONLY
FAN
HEAT1
COOL1
HEAT2
COOL2
e-Stat
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