Honeywell T8501 Benutzerhandbuch
T8501 MICROELECTRONIC THERMOSTATS
3
69-0925—4
Fig. 4. Typical hookup in heat and cool system with
one transformer.
Fig. 5. Typical hookup in heat and cool system with
two transformers.
.
Fig. 6. Correct wiring technique.
Mounting Thermostat
1. Engage tabs at the top of the thermostat and wall-
plate. See Fig. 7.
2. Press lower edge of case to close and latch.
NOTE: To remove the thermostat from the wall, first pull
out at the bottom of the thermostat; remove top
last.
last.
Fig. 7. Mounting thermostat on wallplate.
L1
(HOT)
(HOT)
L2
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
OVERLOAD PROTECTION AS REQUIRED.
AVAILABLE ON SELECT MODELS.
1
HEATING
RELAY OR
VALVE COIL
RELAY OR
VALVE COIL
M4821
COMPRESSOR
CONTACTOR
CONTACTOR
FAN
RELAY
RELAY
R
O
T
O
T
C
B
O
G
Y
W
OUTDOOR
TEMPERATURE
SENSOR
TEMPERATURE
SENSOR
COOL
CHANGEOVER
VALVE OR
DAMPER
CHANGEOVER
VALVE OR
DAMPER
HEAT
CHANGEOVER
VALVE OR
DAMPER
CHANGEOVER
VALVE OR
DAMPER
THERMOSTAT
1
2
2
L1
(HOT)
(HOT)
L2
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.
OVERLOAD PROTECTION AS REQUIRED.
AVAILABLE ON SELECT MODELS.
JUMPER Rh TO Rc IN A SINGLE TRANSFORMER SYSTEM.
1
HEATING
RELAY OR
VALVE COIL
RELAY OR
VALVE COIL
M4820
COMPRESSOR
CONTACTOR
CONTACTOR
FAN
RELAY
RELAY
Rh
O
T
O
T
O
G
Y
C
B
W
OUTDOOR
TEMPERATURE
SENSOR
TEMPERATURE
SENSOR
COOL
CHANGEOVER
VALVE OR
DAMPER
CHANGEOVER
VALVE OR
DAMPER
HEAT
CHANGEOVER
VALVE OR
DAMPER
CHANGEOVER
VALVE OR
DAMPER
THERMOSTAT
1
3
2
2
3
1
L1
(HOT)
(HOT)
L2
Rc
M4826
FOR WRAPAROUND
INSERTION STRIP
7/16 IN. (11 MM).
INSERTION STRIP
7/16 IN. (11 MM).
FOR STRAIGHT INSERTION
STRIP 5/16 IN. (8 MM).
STRIP 5/16 IN. (8 MM).
M6798A
B.
PRESS LOWER EDGE OF CASE TO LATCH.
A.
ENGAGE TABS AT TOP OF THERMOSTAT AND WALLPLATE.