Honeywell 191108AC Installation Instructions Manual page 8

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 IS INTERRUPTED.
Fig. 17—Internal schematic and typical hookup for TS8095A Thermostat/191108AC Wallplate in heating-
only system.
THERMOSTAT
WALLPLATE
L1
(HOT)
1
L2
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
69-0638—1
CLOCK
C
C R W
HEAT
RELAY
M1512B
CLOCK
BIMETAL
C C R
Honeywell Limited—Honeywell Limitée
35 Dynamic Drive
Scarborough, Ontario M1V 4Z9
Fig. 16—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).
BATTERY
THERMOSTAT
SUBBASE
L1
(HOT)
1
L2
POWER SUPPLY. PROVIDE DISCONNECT MEANS
1
AND OVERLOAD PROTECTION AS REQUIRED.
FALL
FALL
FIXED
ANTICIPATOR
BIMETAL
FIXED
ANTICIPATOR
750 mV
SYSTEM
8
CLOCK
C
C R W
HEAT
RELAY
M1513A
W
M1808A