Honeywell T8024F, T8001F User Manual
T8001F, T8024F Flush Mount
Programmable Thermostat
INSTALLATION INSTRUCTIONS
APPLICATION
The T8001F Thermostat provides single-stage,
programmable temperature control for 24 Vac heatingcooling systems with manual changeover from heat to
cool. The T8024F Thermostat provides multistage
electronic control of single-zone heating and c ooling
systems. Heating cycle rate is selectable at 1, 3, 4, 5, 6,
9, or 12 cph. Cooling cycle rate is fixed at 3 cph.
Temperature indication can be set for °F or °C.
The T8001F, T8024F Thermostat is powered directly
from the system transformer. Batteries are not required
because setpoints are held permanently by non-volatile
memory.
The T8001F, T8024F model includes a thermostat,
wallplate and owner’s guide. See Table 1.
MERCURY NOTICE
If this control is replacing a control that contains
mercury in a sealed tube, do not place your old
control in the trash. Dispose of it properly.
Contact your local waste management authority
for instructions regarding recycling and the
proper disposal of the control.
INSTALLATION
When Installing this Product…
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a hazardous condition.
2. Check the ratings given in the instructions and on
the product to make sure the product is suitable for
your application.
Table 1. Thermostat Descriptions.
Model System Changeover System Selection Fan Selection Powering Method
T8001F Heat-Cool Manual Cool-Off-Heat Auto-On Hardwired
T8024F Heat-Cool Manual Cool-Off-Heat Auto-On Hardwired
3. Installer must be a trained, experienced service
technician.
4. After installation is complete, check out product
operation as provided in these instructions.
CAUTION
Hazardous Voltage.
Can damage heating/cooling system.
Disconnect power at furnace or main breaker/
fuse box.
Location
Install the thermostat about 5 ft (1.5m) above the floor in
an area with good air circulation at average temperature.
See Fig. 1. Do not install the thermostat where it can be
affected by:
— drafts or dead spots behind doors and in corners.
— hot or cold air from ducts.
— radiant heat from the sun or appliances.
— concealed pipes and chimneys.
— unheated (uncooled) areas such as an outside wall
behind the thermostat.
Installing Wallplate in Wall
IMPORTANT
Level only for appearance. The thermostat functions normally even when not level.
Mount wallplate and the T8001F or T8024F with the wing
anchors provided (see Fig. 2) as follows:
1. Place the wallplate template at the desired location
on the wall.
2. Trace and cutout the opening.
3. Pull the thermostat wire through the wallplate
entrance hole.
4. Fasten the wallplate to the wall using the wing
anchors.
® U.S. Registered Trademark
Copyright © 2001 Honeywell • • All Rights Reserved
69- 1465- 3
T8001F, T8024F FLUSH MOUNT PROGRAMMABLE THERMOSTAT
2)
A
F
I
S
(
NO
WALL
WALLPLATE
MOUNTING
SCREWS (2)
Fig. 2. Mounting wallplate to wall.
Wiring
IMPORTANT
Use an 18-gauge maximum wire for wiring the
T8001F Thermostat.
YES
NO
5 FEET
[1.5 METERS]
NO
Fig. 1. Typical location of thermostat.
All wiring must comply with local electrical codes and
ordinances. Disconnect the power supply to prevent
electrical shock or equipment damage.
The shape of the terminals permits insertion of straight or
wraparound wiring connections; either method is
acceptable. A letter code is located near each terminal
for identification. See Fig. 3 and 4.
NOTE: To ensure correct mounting of thermostat,
restrict all wiring to shaded area in center of
terminals. See Fig. 5.
OR STRAIGHT
NSERTION
TRIP 5/16 IN.
9 MM)
WING
ANCHORS (
M18610
FOR WRAP
AROUND
STRIP 7/16 IN.
(11 MM)
TERMINAL
SCREW
Fig. 3. T8001F wiring connections.
M11338
G
C
R
W
Y
B
O
M18609
69-1465—3 2
T8001F, T8024F FLUSH MOUNT PROGRAMMABLE THERMOSTAT
T
S
2
)
A
T8001 THERMOSTAT
1
M12567
T8001 THERMOSTAT
L
(
L
-
ERMINAL
CREW
FOR STRAIGHT
INSERTION STRIP
5/16 IN. (8 MM)
FOR WRAPAROUND
STRIP 7/16 IN. (11 MM
G
C
R
W1
Y
Fig. 4. T8024F wiring connections.
KEEP WIRING IN
SHADED AREA
G
C
R
W
Y
MOUNTING
SCREW HOLE
W2
Y2
B
O
M2021
KEEP WIRING IN
SHADED AREA
B
O
G
C
R
W
Y
HEAT
1
L1
(HOT)
L2
TRANSFORMER
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
CAN BE USED FOR CHANGEOVER VALVE ON SINGLE-STAGE HEAT
2
PUMP SYSTEMS.
Fig. 6. Typical T8001Fhookup in heat-cool
O1
G1
B1
E1
CHANGEOVER
CONTROL
Fig. 7. Typical wiring diagram for T8001F on a zone 1
MABS II or Masterol™ control panel.
RELAY
COMPRESSOR
FAN
CONTACTOR
RELAY
system with one transformer.
G
C
R
W
Y
B
2
O
2
COOL
DAMPER
2
HEAT
DAMPER
B
O
ZONE
T8
T7
T6
T5
T4
M1
MOUNTING
SCREW HOLE
WIRING
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
30 Vac heating-cooling systems. All T8001F Thermostats
require a common wire to supply power. Refer to Fig. 6
through 8 for typical wiring hookups.
ENTRANCE HOLE (2)
T8024 THERMOSTAT
G
C
R
W1
Y
M18608
1
1
HOT)
2
TRANSFORMER
1
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
Fig. 8. Typical diagram for T8024F two-stage heat and
two-stage cool system with manual changeover.
FAN
RELAY
STAGEONE
HEAT
RELAY
STAGE ONE
COOLING
COOL
DAMPER
W2
Y2
B
O
HEAT
DAMPER
STAGETWO
COOLING
M20214
STAGE
TWO
HEAT
RELAY
3 69-1465—3
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