Honeywell T834C Manual page 2

8. For optimum performance, level the thermostat us-
ing a spirit level or plumb line. Tighten the mounting
screws.
Fig. 2—Internal schematic and typical hookup diagram for single-transformer heating-cooling systems.
H1
C1
TEMP. FALL
H1
ANTICIPATOR
1 POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 3—Internal schematic and typical hookup diagram for systems with separate heating and cooling
transformers.
H1
TEMP. FALL
H1
ANTICIPATOR
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
FAN
SWITCH
ON
AUTO
C1
ANTICIPATOR
SYSTEM
SWITCH
COOL
OFF
HEAT
FAN
SWITCH
C1
ON
AUTO
C1
ANTICIPATOR
SYSTEM
SWITCH
COOL
OFF
HEAT
IMPORTANT: An incorrectly leveled thermostat will cause
the temperature control to deviate from setpoint.
9. Replace the thermostat cover.
R
FAN RELAY
G
COOL RELAY
Y
HEAT
OFF
COOL
HEAT RELAY
W
RC
FAN RELAY
G
COMPRESSOR
CONTACTOR
Y
RH
HEAT
OFF
COOL
HEAT RELAY
W
2
L1
(HOT)
L2
1
M3630
1
L1
(HOT)
L2
1
L1
(HOT)
L2
M1228