Honeywell 2000 User Manual
Page 5
62-0135
5
Q7300A,C,D,G SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
Fig. 11. Typical hookup of T7300D,F/Q7300A in two-stage heat and
two-stage cool conventional system with two transformers.
Fig. 12. Typical hookup of T7300D,F/Q7300A in two-stage heat and
two-stage cool conventional system with two transformers.
W2
L1
(HOT)
L2
M10236
FAN
RELAY
Y1
G
X
SUBBASE
RC
HEAT
RELAY 1
RH
W1
L1
(HOT)
L2
COMPRESSOR
CONTACTOR 1
Y2
COMPRESSOR
CONTACTOR 2
HEATING
TRANSFORMER
COOLING
TRANSFORMER
B
O
HEAT
RELAY 2
COOL
DAMPER
HEAT
DAMPER
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
JUMPER RC TERMINAL TO RH TERMINAL WHEN INSTALLED ON A SYSTEM WITH ONE TRANSFORMER.
1
1
1
2
2
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
JUMPER RC TERMINAL TO RH TERMINAL WHEN INSTALLED ON A SYSTEM WITH ONE TRANSFORMER.
USE A1 AND A2 WHEN THE CONTACTS SHOULD BE NORMALLY CLOSED IN OCCUPIED MODE. USE A2 AND A3 WHEN
THE CONTACTS SHOULD BE NORMALLY OPEN IN OCCUPIED MODE.
CONNECT GND TO EARTH GROUND.
INSTALL FIELD JUMPER BETWEEN X4 AND X TO POWER LEDS.
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
1
1
1
M4945A
2
2
3
4
5
6
3
5
6
4
W2
L1
(HOT)
L2
FAN
RELAY
Y1
G
X
SUBBASE
RC
HEAT
RELAY 1
RH
C1
T
T7147 REMOTE COMFORT ADJUST MODULE
GND
W1
C2
L1
(HOT)
L2
COMPRESSOR
CONTACTOR 1
C4
C3
C5
CA1
T
CA2
CA4
CA3
CA5
T
T
Y2
COMPRESSOR
CONTACTOR 2
HEATING
TRANSFORMER
COOLING
TRANSFORMER
A2 A3
A1
X3
X1
X4
EQUIPMENT
MONITOR 2
EQUIPMENT
MONITOR 1
ECONOMIZER
AS
AS
DISCHARGE
AIR
SENSOR
HEAT
RELAY 2