Honeywell Q7300A Installation Instructions Manual page 7

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