Honeywell TRADELINE Q7300H Series Installation Instructions Manual page 6

Q7300H SERIES 2000 COMMERCIAL THERMOSTAT SUBBASES
AS AS X Y1
COMPRESSOR
CONTACTOR 1
DISCHARGE
AIR
SENSOR
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
2 USE A1 AND A2 WHEN CONTACTS ARE NORMALLY CLOSED IN OCCUPIED MODE.
USE A2 AND A3 WHEN CONTACTS ARE NORMALLY OPEN IN OCCUPIED MODE.
3 CONNECT GND TO EARTH GROUND.
4 USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
Fig. 11. Typical hookup of T7300F/Q7300H in three-stage heat and two-stage cool heat pump system.
AS AS RC Y1
2
COMPRESSOR
CONTACTOR 1
DISCHARGE
AIR
SENSOR
FAN
RELAY
L1
(HOT)
L2
1
COOLING
TRANSFORMER
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
2 JUMPER RC TERMINAL TO RH TERMINAL WHEN INSTALLED ON A
SYSTEM WITH ONE TRANSFORMER.
3
USE A1 AND A2 WHEN CONTACTS ARE NORMALLY CLOSED
IN OCCUPIED MODE. USE A2 AND A3 WHEN CONTACTS
ARE NORMALLY OPEN IN OCCUPIED MODE.
Fig. 12. Typical hookup of T7300F/Q7300H in three-stage heat and three-stage cool conventional system.
62-0155—3
G Y2 E W3 W2 W1
EM. HT.
HEAT
RELAY
RELAY 2
FAN
HEAT
RELAY
RELAY 3
COMPRESSOR
HEAT
CONTACTOR 2
RELAY 1
G Y2 Y3 X W3 W2
HEAT
COMPRESSOR
RELAY 2
CONTACTOR 2
COMPRESSOR
CONTACTOR 3
HEAT
RELAY 3
SUBBASE
2
A1 A2 A3 C5 C4
R
ECONOMIZER
4
CA5 CA4 CA3
T7147 REMOTE COMFORT ADJUST MODULE
TRANSFORMER
SUBBASE
3
C5
W1 RH A1 A2 A3
ECONOMIZER
5
CA5 CA4
T7147 REMOTE COMFORT ADJUST MODULE
HEAT
RELAY 1
HEATING
TRANSFORMER
4
CONNECT GND TO EARTH GROUND.
USE ECONOMIZER INSTRUCTIONS FOR INSTALLATION DIRECTIONS.
5
6
C3 C2 C1 T T
CA2 CA1
T T
GND
3
1
L1
(HOT)
L2
C4 C3 C2 C1 T
CA2 CA1 T
CA3
1
4
L1
(HOT)
L2
EB EB
LonWorks ® BUS
LonWorks ® BUS
M16057
EB EB
T
LonWorks ®
BUS
T
LonWorks ®
GND
BUS
M16058