Honeywell 2000 - Manual (Page 7)

62-0135 7
Q7300A,C,D,G SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
Fig. 15. Typical hookup of T7300E,F/Q7300C in three-stage heat and two-stage cool heat pump system.
Fig. 16. Typical hookup of T7300E,F/Q7300D in three-stage heat and two-stage cool heat pump system.
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
EM. MODE IS ON CONTINUOUSLY IN EMERGENCY HEAT MODE.
EM. HT. RELAY CYCLES IN EMERGENCY HEAT MODE.
1
2
3
3 2
1
M4940A
HEAT
RELAY 3
W2
L1
(HOT)
L2
Y O G
SUBBASE
X
EM. HT.
RELAY
R B
COMPRESSOR
CONTACTOR 1
Y2
COMPRESSOR
CONTACTOR 2
TRANSFORMER
W3 E
HEAT
RELAY 2
HEAT
CHANGEOVER
VALVE
X1 X2 L
EQUIPMENT
MONITOR 2
EQUIPMENT
MONITOR 1
FAN
RELAY COOL
CHANGEOVER
VALVE
EM.
MODE
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
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 3
M4948A 2
3
4
5
2
5
4
HEAT
RELAY 3
W2
L1
(HOT)
L2
FAN
RELAY
Y1 G
SUBBASE
X R C1 T
T7147 REMOTE COMFORT ADJUST MODULE
GND
W1 C2
COMPRESSOR
CONTACTOR 1
C4 C3 C5
CA1 T CA2 CA4 CA3 CA5
T
T
Y2
COMPRESSOR
CONTACTOR 2
TRANSFORMER
W3 E
HEAT
RELAY 2 EM. HT.
RELAY
A2 A3 A1 X3 X1 X4
EQUIPMENT
MONITOR 2
EQUIPMENT
MONITOR 1
ECONOMIZER
AS AS
DISCHARGE
AIR
SENSOR
HEAT
RELAY 1