Honeywell T834B Installation Instructions Manual page 4

T834B; T834C; T834J HEATING-COOLING THERMOSTATS
H1
TEMP. FALL
H1
ANTICIPATOR
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 7. Internal schematic and typical hookup for T834C in single-stage heat pump system.
H1
C1
TEMP. FALL
C1
ANTICIPATOR
H1
ANTICIPATOR
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
Fig. 8. Internal schematic and typical hookup for T834C with terminal for defrost relay in heat pump system.
H1
C1
TEMP. FALL
C1
ANTICIPATOR
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
2
JUMPER RC AND RH IN ONE TRANSFORMER SYSTEMS.
Fig. 9 . Internal schematic and typical hookup for T834C in two transformer system.
69-0444—10
FAN
SWITCH
AUTO
C1
C1
SYSTEM
ANTICIPATOR
SWITCH
COOL
OFF
HEAT
FAN SWITCH
AUTO
ON
SYSTEM
SWITCH
COOL
OFF
HEAT
FAN
SWITCH
ON
HEAT
OFF
COOL
R
G
P
O
W
HEAT
HEAT RELAY
OFF
COOL
Y
B
ON
AUTO
SYSTEM
SWITCH
HEAT
COOL
OFF
OFF
COOL
HEAT
4
R
FAN RELAY
G
Y
COMPRESSOR
CONTACTOR
CHANGEOVER
RELAY (HEAT)
B
CHANGEOVER
RELAY (COOL)
O
M2108A
FAN RELAY
DEFROST
RELAY
CHANGEOVER
RELAY (COOL)
COMPRESSOR
CONTACTOR
CHANGEOVER
RELAY (HEAT)
RC
G
FAN RELAY
Y
COOL RELAY
2
RH
HEAT RELAY
W
L1
(HOT)
L2
1
L1
(HOT)
L2
1
M412
L1
(HOT)
L2
1
L1
(HOT)
L2
1
M11746