Honeywell T7200 - Page 26

63-4038—7 26
T7200/T7300/Q7300
WIRING DIAGRAMS
L1
(HOT)
L2
1
2
3
4
2
1
M4387
RC
RH
R
Y2
W1
G
FAN
HEAT 1
COOL 2
W1
W2
G
FAN
H1
H2
C1
C2
HVAC EQUIPMENT
TERMINAL STRIP
SYSTEM
TRANSFORMER
(IF NO "C" TERMINAL)
Y1
COOL 1
Y1
24 VAC SECONDARY; MUST BE ABLE TO CARRY ADDITIONAL 6 VA LOAD OF THERMOSTAT AND SUBBASE.
FIELD INSTALLED JUMPER.
24 VAC ONLY.
MODEL
NUMBER
Q7300A
Q7300B
Q7300E
C
3
AUXILIARY
RELAY
CONTACTS
A1
A2
A3
Y2
X
L1
(HOT)
L2
1
4
4
3
CA2
CA1
CA3
CA4
CA5
T
T
COM
LED1
LED2
T7300
THERMOSTAT
Q7300 SUBBASE
EXISTING HVAC EQUIPMENT
T7147
REMOTE
COMFORT
ADJUST
MODULE
ECONOMIZER
HEAT
OFF
AUTO
COOL
ON
AUTO
SYSTEM SWITCH
FAN SWITCH
FAN
SWITCH
NO
YES
YES
SYSTEM
SWITCH
NO
YES
NO
Fig. 28—T7300/Q7300A,B,E used with single transformer 1-stage heat/2-stage cool system.