Honeywell T8002 Manuel utilisateur

Hone) well

T8002

ProgrammableThermostat

APPLICATION

The T8002 Thermostat provides single-stage, program-

mable temperature control for 24 Vac heating-cooling

systems with manual changeover from heat to cool. See

Table 1. Heating cycle rate is selectable at 1, 3, 4, 5, 6, 9,

or 12 cph. Cooling cycle rate is fixed at 3 cph. Temper-

ature indication can be set for °F or °C. See Table 1.

The T8002 Thermostat is powered with three AA alkaline

batteries. Setpoints and programming are held

permanently by non-volatile memory.

The T8002 Thermostat includes a thermostat, wallplate,

batteries, and Owner's Guide.

MERCURYNOTICE

tf 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 a control.

INSTALLATION

When Installingthis Product ...

1. Read these instructions carefully. Failure to follow

them could damage the product or cause a hazard-

ous condition.

2. Check the ratings given in the instructions and on

the product 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.

z_ CAUTION

Hazardous Voltage.

Dan damage heating/cooling system.

Disconnect power at furnace or main breaker/

fuse box.

Location

Install the thermostat about 5 ft (1.5m) above tile 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.

Table 1. T8002 Thermostat Description.

Mode'SY"emChaogeoverSy"emSe'ect'ontFanSe'ec'iontPower'ngMethodT8002 Heat-Cool Manual Cool-Off-Heat Auto-On Batteries

@ US. Registered Trademark

69-1549

T8002 PROGRAMMABLE THERMOSTAT

YES

5FEET

[15 METERS]

Fig. 1. Selecting typical thermostat location.

MountingWallplate to Wall

IMPORTANT

Level only for appearance. The thermostat func-

tions normally even when not level.

Mount the walplate to the wall with the screws provided

(see Pig. 2) as folows:

1. Place the wa/plate at the desired location on the

wal.

2. Pull the thermostat wire through the wallptate

entrance hole.

3. Fasten the walplate to the wall using the anchors

and screws provided.

4. After wiring the wallplate, plug the hole with non-

flammable insulation to prevent drafts from affect-

ing the thermostat.

AJ A%,%°Rs®

/ /

j WALL'S=E\

WHEN USING WALL ANCHORS, DRILL 3/16 INCH

HOLES FOR DRYWALL, 7/32 INCH HOLES FOR

PLASTER OR WOOD M12202A

Wiring

IMPORTANT

Use an f8-gauge maximum wire to wire the

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 allows inserting straight or

wraparound wiring connections; either method is

acceptable. A letter code is located near each terminal

for identification. See Fig. 3.

NOTE: To ensure accurately mounting the thermostat,

restrict all wiring to the shaded area in the cen-

ter of the terminals. See Fig. 4.

Fig. 2. Mounting wallplate to wail.

69-1549 2

T8002 PROGRAMMABLE THERMOSTAT

SCREW_

STRIP 7/16 IN (11 MM)

Fig. 3. Connecting wiring.

The thermostat is adaptable to most 18 to 30 Vac

heating-cooling systems. Refer to Fig. 5, 6 and 7 for

typical wiring hookups.

T8002 THERMOSTAT

TRANSFORMER

Z_ POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED

z_CAN BE USED FOR CHANGEOVER VALVE ON SiNGLE-STAGE NEAT

PUMP SYSTEMS

z_ JUMPER R TO Rc M20510

Fig. 5. Typical heat-cool system hookup with single

transformer.

T8002THERMOSTAT

_gA

MOUNTING WIRING ENTRANCE

SCREW HOLE 3HOLE q

MI2S60

Fig. 4. Restricting wiring to shaded areas.

COOLING HEATING

TRANSFORMER TRANSFORMER

Z_ POWER SUPPLy PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTEOT[ON AS REQUIRED

_ REMOVE RC TO R JUMPER WHEN INSTALLED ON A _JVO TRANSFORMER

SYSTEM

_CAN BE USED FOR CHANGEOVER VALVE ON SINGLE STAGE HEAT

PUMP SYSTEMS M20511

Fig. 6. Typical heat-cool system hookup with two

transformers.

3 69-1549

T8002 PROGRAMMABLE THERMOSTAT

TS002THERMOSTAT

TRANSFORMER

Zl_ POWER SUPPLY PROVIDE DISCONNECT MEANS AND OVERLOAD

PROTECTION AS REQUIRED

z_ ,lUMPER Y TO W

z_ JUMPER R TO R¢

Z_USE EITHER O OR B FOR HEAT PUMP CHANGEOVER M20512

Fig. 7. Typical single-stage heat pump system

hookup.

Setting Fan Operation (Fuel) Switch

The fan operation (fuel) switch is preset at the factory in

the F position. See Fig. 8. This is the correct setting for

most systems. If this system is an electric heat system or

single-stage heat pump, set the switch to the E position,

which altows the fan to turn on immediately with the

heating or cooling equip-merit in a system where the G

terminal is connected.

IOFA N OPE A IM20530

Fig. 8. Fan operation (fuel) switch.

MountingThermostat to Wallplate

1. Slide System switch to Off position.

2. Engage the tabs at the top of the thermostat and

wallptate.

3. Swing do,vn the thermostat and press the lower

edge of the thermostat onto the wallplate to latch.

See Fig. 9.

J_, ENGAGE TABS ATTOP OFTHERMOSTAT

WITH SLOTS ON WALLPLATE.

BPRESS LOWER EDGE OF

CASE TO LATCH.

Fig. 9. Mounting thermostat to wallpiate.

Installing Batteries

The thermostat requires three AA alkaline batteries to

operate:

1. Remove the battery door, located on the right side

of the thermostat, by pulling outward from the bot-

tom. See Fig. 10.

2. Insert the three AA alkaline batteries (included) as

shown in Fig. 10.

NOTE: The thermostat shows a "bAtLo" message on

the digital disptay to alert the homeowner one to

two months before the batteries run out com-

pletely.

IMPORTANT

Homeowner should replace the batteries once a

year to prevent leakage and/or the heating/cool-

ing system from shutting down due to lack of

battery power in the thermostat.

69-1549 4

Fig. 10. Installing batteries.

Installer Setup

Setting °F/°C Indication and Heat Cycle Rate

The following instructions provide information to change

the heating cycle rate to match the heating equipment

and to choose either the Fahrenheit (°F) or Celsius (°C)

display.

NOTE: All four steps must be completed to save

changes to the °F/°C indication and the heat

cycle rate.

1. Enter Installer Setup.

a. Use • or • keys to set the temperature set-

point to 52°F (11°C).

MI2582A

b. Press the • and • keys simultaneously for

more than two seconds to enter Installer Setup.

T8002 PROGRAMMABLE THERMOSTAT

c. Release the keys to display the three-digit soft-

ware revision code. (Information displayed var-

ies by model.).

_cc

J J

d. Press the • key. FC (factory configuration) is

displayed. (A typical example is shown, but

information displayed varies by model. This

information is for factory use only.)

M12584A

Optional System Checkout

When in steps 1.c. and 1.d. only, the • key can be

pressed to turn heat or cool outputs on and off. Change

the System switch setting to test heat or cool outputs. No

action takes place if the System switch is in the Off

position.

Examples:

System setting at Heat: If heat is on, pressing the •

key turns it off; if heat is off, pressing the • key turns it

on.

System setting at Cool: If cool is on, pressing the •

key turns it off; if cool is off, pressing the • key turns it

on. The five-minute minimum off time is bypassed.

NOTE: In Installer Setup only, each press of the • key

momentarily displays 1. Each press of the •

key momentarily displays 2. When the keys are

released, these one-digit codes are no longer

displayed.

2. Setting °C or °R

a. Press the • key again to display the current

setting.

MI25STA

5 69-1549

T8002 PROGRAMMABLE THERMOSTAT

b. Press the • key to change the °C or °P

indication.

M125S6A

3. Setting Heat Cycle Rate (see Table 2 for the cycle

rate options and equipment).

a. Press the • key to display the current heat

cycle rate setting of t, 3, 4, 5, 9, or 12 cph.

M125SSA

b. If the desired cycle rate is displayed, press the

• key to display heating and cooling algorithm

default. E

M125SgA

c. To change the heat cycle rate, press the • key

until your choice of 1,3, 4, 5, 6, 9, or 12 is dis-

played.

d. Press the • key to display the heating and

cooling algorithm configuration default.

,_9

M14691

e. Press the • key to change the heating and

cooling algorithm to Cl or C3.

Ct = Standard algorithm.

C3 = Aggressive algorithm (Default. Can cause

overshooting).

f. Press the • key. Current configuration (CC) is

displayed. A typical example is shown, but CC

varies by model. (This information is for factory

use only.)

4. Exit installer Setup.

a. Press the • key to save all changes and return

to normal operation.

_ \ I /j

Table 2. Heating Cycle Rate.

System Cycles Per Hr

Steam, Gravity 1

Hydronic Heat, Condensing Gas 3

Furnaces a

Gas or Oil forced Air (Default) 6

Electric Heat 9

Special Applications b 4, 5, 12

aHigh efficiency furnace (90+).

bRefer to the equipment manufacturer's instructions.

Operation

Setting Fan and System Switches

Fan and System settings are controlled manually by

using the switches located at the bottom of the

thermostat case. See Fig. 11.

FANSWITCH

Fan switch settings are:

On: The fan runs continuously. Use for improved air

circulation and air quality.

Auto: Normal setting for most homes. In cooling, the

fan starts and stops with the cooling equipment. In

heating, the fan is controlled directly by the heating

equipment and may start a few minutes after the

heating equipment turns on (most systems). When

the fan operation (fuel) switch is in the E position,

the fan starts and stops with the heating equip-

ment.

Slide the Fan switch in the lower left corner of the

thermostat to select the desired fan setting.

SYSTEMSWITCH

System switch settings (see Fig. 11) are:

Cool: The thermostat controls the cooling system.

Off: Both heating and cooling are off.

Heat: The thermostat controls the heating system.

Slide the System switch in the lower right corner of the

thermostat to select the desired system setting.

69-1549 6

T8002 PROGRAMMABLE THERMOSTAT

M20515

Fig. 11. Digital display and System switches.

Setting Current Time and Day

1. Toset currenttime:

a. PressSelecttwice.

_:L_L-bM

M12501A

b. Press the • or • key to set current time.

I=LJ LJPM

M12592A

2. To set day of week:

a. Press Select again.

_ION M1259SA

b. Press • or • key to set current day.

TRU

M12594A

To use the preprogrammed time and temperature (see

Table 3), press Hold to exit the time and day mode.

SettingTimeandTemperature

The thermostat is preprogrammed with the time and

temperature settings shown in Table 3. For instructions

on programming the thermostat, refer to the Owner's

Guide.

Table 3. Preprogrammed Time and

Cool

Period Setpoint

Wake 78°F (26°C)

Leave 85°F (29°C)

Return 78°F (27°C)

Sleep 82°F (28°C)

Temperature Settings.

Heat

Time Setpoint

6:00 AM 70°F (21°C)

8:00 AM 62°F (17°C)

6:00 PM 70°F (21°C)

10:00 PM 62°F (17°C)

CHECKOUT

Heating

1. Slide the System switch to Heat and the Fan switch

to Auto.

2. Press and hold the • key to raise the temperature

setting several degrees above the room tempera-

ture; the heating equipment should start, tn con-

ventional systems, the system turns on the fan

through the use of a time delay relay or through a

limit control. When the fan operation (fuel) switch is

in the E positions, the fan starts immediately.

3. Press the • key to lower the temperature setting

betow the room temperature. Heating equipment

should stop.

Cooling

CAUTION

Compressor Damage Hazard.

Operating at too low of an outdoor

temperature can cause compressor damage.

Do not operate cooling if outdoor temperature is

below 50°F (10°C).

Allow compressor to remain off for five minutes

before restarting.

Refer to manufacturer's recommendations.

Slide the System switch to Cool and the Fan switch

to Auto.

Press the • key to lower the temperature setting

several degrees below the room temperature; the

cooling equipment should start. The fan starts and

stops with the cooling equipment.

NOTE: If the cooling system does not start immediately,

remember that the thermostat has a built-in min-

imum off-time of five minutes to protect the com-

pressor.

3. Press the • key to raise the temperature setting

above the room temperature. Cooling system

should shut down.

7 69-1549

T8002 PROGRAMMABLE THERMOSTAT

Fan

1. Slide the System switch to Off and the Fan switch

to On. The fan should run continuously.

2. Slide the Fan switch to Auto. The fan should turn

off.

IMPORTANT

Be cure all equipment responds correctly to the

thermostat

Automation and Colltrol Sotutioiis

Honeywell Honeywell Limit ed Honeywell Limitee

/985 Douglas Drive Norfll 35 Dynamic Drive

(_ldell Valley_ MN 55422 Sca_orough_ Ontario

MIV4Z9

Hone_ell

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