Honeywell T8001F, T8024F T8001F, T8024F FLUSH MOUNT PROGRAMMABLE THERMOSTAT, Fig. 4. T8024F wiring connections., Fig. 6. Typical T8001Fhookup in heat-cool system with one transformer., Fig. 7. Typical wiring diagram for T8001F on a zone 1 MABS II or Masterol control panel., Fig. 8. Typical diagram for T8024F two-stage heat and two-stage cool system with manual changeover.

T8001F, T8024F FLUSH MOUNT PROGRAMMABLE THERMOSTAT
3 69-1465—3
Fig. 4. T8024F wiring connections.
Fig. 5. Restrict wiring to shaded area (T8001 shown).
The T8001F Thermostat is powered directly from the
system transformer and is adaptable to most 18 to
30Vac heating-cooling systems . All T8001F Thermostats
require a common wire to supply power. Refer to Fig. 6
through 8 for typical wiring hookups.
Fig. 6. Typical T8001Fhookup in heat-cool
system with one transformer.
Fig. 7. Typical wiring diagram for T8001F on a zone 1
MABS II or Masterol™ control panel.
Fig. 8. Typical diagram for T8024F two-stage heat and
two-stage cool system with manual changeover.
T
ERMINAL
S
CREW
M2021
2
G
R
C
Y
W1 B
O
FOR STRAIGHT
INSERTION STRIP
5/16 IN. (8 MM)
FOR WRAPAROUND
STRIP 7/16 IN. (11 MM
)
Y2
W2
MOUNTING
SCREW HOLE
KEEP WIRING IN
SHADED AREA
MOUNTING
SCREW HOLE
WIRING
ENTRANCE HOLE (2) M18608
A
G
C
R
W
Y
B
O
KEEP WIRING IN
SHADED AREA
L1
(HOT)
L2
M12566
FAN
RELAY
HEAT
RELAY
COMPRESSOR
CONTACTOR
TRANSFORMER
HEAT
DAMPER
COOL
DAMPER
1POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
CAN BE USED FOR CHANGEOVER VALVE ON SINGLE-STAGE HEAT
PUMP SYSTEMS.
2
2
2
1
Y
G
C
W
2
R
B
O
T8001 THERMOSTAT
T8
T7
T6
T5
O1
G1
B1
E1
T4
M1
ZONE
1
CHANGEOVER
CONTROL
M12567
Y
G
C
W
R
B
O
T8001 THERMOSTAT
L
1
(
HOT)
L
2
M20214
FAN
RELAY
STAGE-
ONE
HEAT
RELAY
STAGE ONE
COOLING
TRANSFORMER
HEAT
DAMPER
COOL
DAMPER
1POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
1
Y
G
C
W1
R
B
O
Y2
T8024 THERMOSTAT
W2
STAGE-
TWO
COOL-
ING
STAGE
-
TWO
HEAT
RELAY