Honeywell Q682B Application Manual page 4

Fig. 7—Q682B Subbase with Fuel Saver Thermostat (T8095 shown) showing separate heating and
cooling circuits.
CLOCK
C C
4
L1
(HOT)
1
L2
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
2 JUMPER RC-RH TERMINALS WHEN ONE TRANSFORMER POWERS
BOTH HEATING AND COOLING.
Fig. 8—Q682L Subbase with T8085R Thermostat in 2-heat, 1-cool add-on heat pump application.
CLOCK
R B
HEAT
CHANGEOVER
RELAY
1
L1
(HOT)
COMPRESSOR
L2
MONITOR SWITCH
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
60-1179—7
HEAT
ANTICIPATOR
3 POSITION
SYSTEM
SWITCH
3
2
RH RC
L1
(HOT)
1
L2
H2
FALL
2
AUX.
HT.
LED
EM. HT.
LED
L
X W2
AUXILIARY
HEAT
RELAY 1
COOL
ANTICIPATORS
C
H
HEAT
FALL
ANTICIPATOR
FAN
SWITCH
G
FAN HEATING
CONTROL
CONTROL
3 IF USING SYSTEM TRANSFORMER TO POWER CLOCK, ADD H-C
JUMPER AND CONNECT C TO SYSTEM TRANSFORMER COMMON.
4 FOR SYSTEM USING SEPERATE TRANSFORMER TO POWER CLOCK.
H1
C1
FALL
SYSTEM
SWITCH
W3 E Y
LACO
EMERGENCY
HEAT RELAY
AUXILIARY
COMPRESSOR
HEAT
CONTACTOR
RELAY 2
2
RIGHT-HAND SWITCH BALL DETERMINES SWITCH POSITION
4
FUEL SAVER
H
THERMOSTAT
C
FALL
Q682B
SUBBASE
W Y
COOLING
CONTROL
FAN
SWITCH
Q682B
SUBBASE
O G
COOL
CHANGEOVER
RELAY
FAN
RELAY
M7223
T8085C
THERMOSTAT
M7208