Honeywell T7200 - Page 40

63-4038—7 40
L1
(HOT)
L2
2
1
4
4
4 5
4
3
4
6
7
5
2
1
M4412
X
R
C
W1
FAN
H1
C1
Q7300 HEAT PUMP SUBBASE
HVAC EQUPIMENT
TERMINAL STRIP
COM
LED1
LED2
G
O
Y1
E
O
W1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED. 24 VAC SECONDARY.
MUST BE ABLE TO CARRY ADDITIONAL 6 VA LOAD OF
THERMOSTAT AND SUBBASE.
ENTHALPY CONTROL MAKES TERMINALS 2-1 ON ENTHALPY
RISE AND 2-3 ON ENTHALPY FALL.
RELAY REQUIRED (R8222 OR SIMILAR).
ECONOMIZER MOTOR SPRING RETURNS CLOSED ANYTIME
FAN IS NOT RUNNING.
24 VAC ONLY.
A3 TERMINAL AVAILABLE ON Q7300D MODEL ONLY.
6
4
1
7
AUXILIARY
RELAY
CONTACTS
A1
A2
A3
B
CO
CO
12
3
7K
4K
5K
3K
W
R
B1
W1
R1
T2
T1
B
RISE
W
R B
OPEN
4K
4K1
5K1
VIOLET
VIOLET
1K
BLUE
MODUTROL
MOTOR
MIXED AIR
TEMPERATURE
CONTROLLER
MINIMUM POSITION
POTENTIOMETER
YELLOW
BROWN
RED
L1
(HOT)
L2
OUTDOOR AIR
CHANGEOVER
SWITCH
EXISTING ECONOMIZER CONTROL PACKAGE
1K1 1K2
BLACK
3K1
FAN
RELAY
REV.
VALVE
AUXILIARY
HEAT 1
COMP
4K2
5K1
4K1
Y
G
AUTO
COOL
OFF
HEAT
EM. HT
RED
RED
SYSTEM
SWITCH
T7300
THERMOSTAT
EXISTING HVAC EQUIPMENT
R
T7200/T7300/Q7300
WIRING DIAGRAMS
Fig. 42—T7300/Q7300C,D with economizer package in 2-stage heat/1 stage cool heat pump system defeating
economizer minimum position during unoccupied period.