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Typical Wiring Diagrams - Honeywell Q682B Manual

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Typical Wiring Diagrams

Fig. 15—Typical hookup for clock powered by
separate 24 Vac transformer.
2
BATTERY
THERMOSTAT
SUBBASE
L1
(HOT)
1
L2
L1
(HOT)
1
L2
POWER SUPPLY. PROVIDE DISCONNECT MEANS
1
AND OVERLOAD PROTECTION AS REQUIRED.
2
BATTERY BACKUP MAY BE USED IF POWER TO
CLOCK IF INTERRUPTED.
Fig. 16—Typical hookup for clock powered by
two AAA alkaline batteries only.
BATTERY
THERMOSTAT
SUBBASE
L1
(HOT)
1
L2
POWER SUPPLY. PROVIDE DISCONNECT MEANS
1
AND OVERLOAD PROTECTION AS REQUIRED.
69-0431—2
CLOCK
C
R
C
W
HEAT
RELAY
M1512B
CLOCK
C
C
R
W
HEAT
RELAY
M1511A
Fig. 17—Typical hookup for clock powered by
system transformer. Clock powered by battery
when system is not powered (e.g., power to
system is off or interrupted).
2
BATTERY
THERMOSTAT
SUBBASE
L1
(HOT)
1
L2
POWER SUPPLY. PROVIDE DISCONNECT MEANS
1
AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 18—Typical hookup for clock powered
through control system. Clock powered by
battery when heating or cooling equipment is
on; clock takes power from system when
heating equipment is off.
THERMOSTAT
CLOCK
BATTERY
3
C
C
SUBBASE
L1
(HOT)
1
L2
L1
(HOT)
1
L2
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
2
JUMPER RH-RC TERMINALS WHEN ONE TRANSFORMER
POWERS BOTH HEATING AND COOLING.
3
FOR POWER STEALING ON HEATING, JUMPER
C-RH AND C-W TERMINALS.
8
CLOCK
C
C
R
W
HEAT
RELAY
M1513A
RH
RC
W
Y
2
HEAT
RELAY
COMPRESSOR
CONTACTOR
M1514C

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