Honeywell T7200 - Page 36

63-4038—7 36
T7200/T7300/Q7300
WIRING DIAGRAMS
L1
(HOT)
L2
1
2
M4399
R
R
O
G
FAN
AUXILIARY
HEAT
REV.
VALVE
W1
G
FAN
AUX HT
H1/C1
Q7300 HEAT PUMP SUBBASE
HVAC EQUIPMENT
TERMINAL STRIP
SYSTEM
TRANSFORMER
(IF NO "C" TERMINAL)
Y
Y1
W1
COMP.
E
EM. HT.
RELAY
C
E
X
B
B
AUTO
COOL
OFF
HEAT
EM. HT
EM.HT.
LED (RED)
AUX. HT.
LED (RED)
SYSTEM
SWITCH
CO HT
CO CL
O
3
2
1
24 VAC SECONDARY; MUST BE ABLE TO CARRY ADDITIONAL 6 VA LOAD OF THERMOSTAT AND SUBBASE.
WIRE O TO REVERSING VALVE FOR COOLING CHANGEOVER. WIRE B TO REVERSING VALVE FOR HEATING CHANGEOVER.
24 VAC ONLY.
3
AUXILIARY
RELAY
CONTACT
A1
A2
L1
(HOT)
L2
1
3
CA2
CA1
CA3
CA4
CA5
T
T
COM
LED1
LED2
T7300
THERMOSTAT
EXISTING HVAC EQUIPMENT
T7147
REMOTE
COMFORT
ADJUST
MODULE
ECONOMIZER
ON
AUTO
FAN SWITCH
Fig. 38—T7300/Q7300C with 2-stage heat/1-stage cool heat pump system using O or B terminal for reversing
valve.