Typical Wiring Diagrams - Honeywell 191108AJ Installation Instructions Manual

Typical Wiring Diagrams

Fig. 15—Typical hookup for timer 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
TIMER IS INTERRUPTED.
Fig. 16—Typical hookup for timer 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.
69-0642—1
TIMER
C
C R W
HEAT
RELAY
M822A
TIMER
C C R W
HEAT
RELAY
M823A
Fig. 17—Typical hookup for timer powered by
system transformer. Timer powered by battery
when system is not powered (e.g., power to
system is off or interrupted).
BATTERY
THERMOSTAT
SUBBASE
L1
(HOT)
1
L2
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 18—Typical hookup for timer powered
through control system. Timer powered by
battery when heating or cooling equipment is
on; timer takes power from system when
heating equipment is off.
THERMOSTAT
TIMER
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
TIMER
C
R
C W
HEAT
RELAY
M824A
RH RC W Y
2
HEAT
RELAY
COMPRESSOR
CONTACTOR
M825A