Honeywell T8112D 사용자 설명서

T8112D PROGRAMMABLE THERMOSTAT

68-0206

3

1. Read these instructions carefully. Failure to follow the

instructions can damage the product or cause a
hazardous condition.

2. Check the ratings given in the instructions and on the

product and in the compatibility chart (Table 1) to make
sure the product is suitable for your application.

3. Installer must be a trained, experienced service

technician.

4. After installation is complete, check out product

operation as provided in these instructions.

Check Table 1 to make sure the thermostat is compatible with
the intended system.

a

Compatible with 2-wire Honeywell zone valves.

All system types:
Not compatible with any 120/240 volt circuit.
Not designed for steam or gravity systems.
Not compatible with 2-wire White Rodgers no. 1361 zone

valves.

Isolating relay required for 3-wire thermostats for zone valves.

Damage to Heating Cooling System Possible.
Be careful when handling wires during installation.
Disconnect power at furnace or main breaker/fuse box.

Locate the thermostat about 5 ft (1.5m) above the floor in
an area with good air circulation at average temperature.

Do not mount the thermostat where it can be affected by:
—

drafts or dead spots behind doors and in corners.

—

hot or cold air ducts.

—

concealed pipes and chimneys.

—

unheated (uncooled) areas such as an outside wall
behind the thermostat.

     

1.  Hold mounting plate in position and mark the two holes

for mounting.

     

2.  Level for appearance only; thermostat functions

properly even when not level.

     

3.  Tighten the mounting screws.

     

4.  Set aside the mounting plate.

     

5.  Drill the two holes in the wall as marked.

—

Drill 3/16 in. holes for drywall.

—

Drill 7/32 in. holes for plaster or wood.

     

6.  Reposition the mounting plate over the holes and pull

wires through the wiring opening.

     

7.  Loosely insert the two mounting screws into the holes.

WALL

WIRES THROUGH
WALL OPENING

WALL ANCHORS (2)

MOUNTING
PLATE

MOUNTING
SCREWS (2)

M1718

All wiring must comply with local electrical codes and
ordinances. Refer to Fig. 5 through 8 for typical hookups. A
letter code is located near each terminal for identification.

     

1.  Connect the system wires to the thermostat. See Fig. 3.

A letter code is located near each terminal for
identification.

NOTE:

Hold the thermostat as shown in Fig. 4 to
minimize the need for wire extenders.

     

2.  Securely tighten each terminal screw.

     

3.  Push excess wire back into the hole.

     

4.  Plug the hole with nonflammable insulation to prevent

drafts from affecting thermostat operation.

     

5.  Run the required number of wires to the thermostat

location. Refer to Fig. 5 through 8 for typical wiring
diagrams.

     

6.  In 5-wire installations only, be sure to remove the factory-

installed jumper connecting the terminals R and Rc.

Gas—Standing Pilot

Yes

Gas—Electronic Ignition

Yes

Gas-Fired Boilers

Yes

a

Gas—

Millivolt

No

Oil-Fired Boilers

Yes

a

Oil-Fired Furnace

Yes

Electric Furnace

Yes

Electric Air Conditioning

Yes

Baseboard Electric (120/240 Line Volt)

No

Heat pumps/Multistage Equipment

No