Honeywell th7000 Thermostat User Manual


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TH7000 Series
3
69-2668—03
Conventional Terminal Letters:
R Heating power. Connect to secondary side
ofheatingsystemtransformer.
Rc Cooling power. Connect to secondary side
ofcoolingsystemtransformer.
C Commonwirefromsecondarysideof
coolingtransformer(if2transformers).
W 1st stage heat relay.
W2 2nd stage heat relay.
Y 1st stage compressor contactor.
Y2 2nd stage compressor contactor.
G Fan relay.
S1 Optional outdoor or remote sensor.
S2 Optional outdoor or remote sensor.
Heat Pump Terminal Letters:
R Heating power. Connect to secondary side
ofheatingsystemtransformer.
Rc Cooling power. Connect to secondary side
ofcoolingsystemtransformer.
C Commonwirefromsecondarysideof
coolingsystemtransformer.
Y 1st stage compressor contactor.
Aux Auxiliary heat relay.
G Fan relay.
E Emergency heat relay.
L Heat pump reset (powered continuously
when System is set to Em Heat; system
monitorwhensettoHeat,CoolorOff).
O/B Changeovervalveforheatpumps.
S1 Optional outdoor or remote sensor.
S2 Optional outdoor or remote sensor.
CONVENTIONAL
HEAT PUMP
C
G
Y
O/B
RC
R
AUX
E
L
S1
S2
C
G
Y
W
RC
R
W2
Y2
NOT
USED
S1
S2
MCR31515
M28420
For24VACprimarypower,connect
commonsideoftransformerto
“C” terminal.
Insertsuppliedbatteriesfor
primary or backup power.
Power options
Push excess wire back into the wall opening.
Plugwallopeningwithnon-flammableinsulation.
Removefactory-installedjumper
onlyfortwo-transformersystems.
Terminal Designations Shaded areas below apply only to TH7220.
Wiring
CONVENTIONAL
HEAT PUMP
C
G
Y
O/B
RC
R
AUX
E
L
S1
S2
C
G
Y
W
RC
R
W2
Y2
NOT
USED
S1
S2
SCREW
INSERT WIRES
THEN TIGHTEN SCREWS
WIRE HOLE
MCR31517
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