Honeywell T8024D User Manual

T8000C, T8001C,T8024D

68-0195-2

Programmable Thermostats

APPLICATION

The T8000C, T8001C and T8024D Programmable Thermostats provide programmable temperature control for 24 Vac heating-cooling systems with manual changeover from heat to cool. The T8000C and T001C provide singlestage heating and cooling control and the T8024D provides two-stage heating and two-stage cooling contorl. Heating cycle rates are selectable at 1, 3, 4, 5, 6, 9, or 12 cph. Cooling cycle rates are fixed at 3 cph. Temperature indication can be set for °F or °C.

The T8000C is powered through the heating/cooling system controls. The T8001C and T8024D are powered directly through the system transformer.

PRODUCT DATA

FEATURES

• Attractive styling complements any decor to the homeowner s delight.

• Preprogrammed for your convenience.

• Program up to four time periods and temperature

setpoints to complement your lifestyle.

• Programs are permanently held in non-volatile memory in the event of a power failure.

• Indefinite setpoint temperature hold for added comfort and energy savings.

• Ease-of-use means fewer homeowner questions and increased homeowner satisfaction.

• Large temperature display for quick easy readability.

• Conveniently sized thermostat (5-1/2 x 3-1/2) with

optional decorator cover plates (7-3/8 x 5-3/4) make it easy to install in a variety of locations.

• Keys are located by the display for easy access.

• FAN and SYSTEM switches are located on the lower

edge to eliminate accidental setting changes.

• Easy installation, setup and self-test saves time and increases installer productivity.

• Manual changeover from heat to cool eliminates unexpected system operation.

•

°F or °C temperature display for added model flexibility.

• Selectable heating cycle rate (1, 3, 4, 5, 6, 9 or 12 cph) for a variety of applications which reduces the amount of inventory.

• Cooling cycle rate is fixed (3 cph), the standard setting for compressors, for speedy installation.

• Setpoints are permanently held in non-volatile memory (no batteries required) and retained during power outages for increased installer and homeowner convenience.

• Power stealing and hardwired models available for virtually all equipment and application needs including; gas, oil and electric forced air, condensing gas furnaces, forced air zoning systems, single stage heat pumps, hydronic heat, gravity and radiant floor heat systems.

Application .......................................................................... 1

Features .............................................................................. 1

Specifications ...................................................................... 2

Ordering Information ........................................................... 2

Installation ........................................................................... 3

Installer Setup ..................................................................... 6

Operation ............................................................................ 8

Checkout ............................................................................. 9

Troubleshooting .................................................................. 12

T8000C, T8001C AND T8024D PROGRAMMABLE THERMOSTATS

SPECIFICATIONS

IMPORTANT

The specifications given in this publication do not include normal manufacturing tolerances; therefore, an individual unit might not exactly match the listed specifications. Also, this product is tested and calibrated under closely controlled conditions, and some minor differences in performance can be expected if those conditions are changed.

The TRADELINE¤ models include a thermostat, wallplate and owner s guide. A 7 3/8 in. x 5 3/4 in. (188 mm x 146 mm) decorator cover plate (for covering wall marks) is available separately. Order Honeywell part no. 209649A (taupe) or part no. 209649B (white).

Power: 24 Vac nominal, 18 to 30 Vac, 50 or 60 Hz.

Electrical Ratings:

T8000C:

Heating: .02-1.2A run; 3.5A inrush. Cooling: .02-1.2A run; 6.0A inrush.

T8001C and T8024D:

Heating: .02 to 1.5A run; 3.5A inrush. Cooling: .02 to 1.5A run; 7.5A inrush.

T8000C, T8001C and T8024D:

Fan: .02 to 0.5A run; 2.5A inrush.

Cycle Rates (at 50% Load):

Heating: Selectable at 1, 3, 6, 9 or 12 cph. See Heating

Cycle Rates, Table 1, for cycle rate options and corresponding system equipment.

Cooling: Fixed at 3 cph.

Finish:

T8000C and T8024D TRADELINE¤ MODELS: are

available in Premier White¤ and Taupe finish.

T8001C MODELS: are available in Premier White¤ color.

Accessory:

Decorator cover plates; for covering wall marks are available separately. Order Honeywell part no. 209649A for Taupe, or part no. 209649B for White. 7-3/8 in. (188 mm) x 5-3/4 in. (146 mm).

Dimensions: See Fig. 1.

WALLPLATE

4-3/8 (111)

3-5/16 (84)

2-3/8

(70)

Current Draw:

T8000C Power Stealing Thermostat requires only 2.5 mA current draw when the thermostat calls for heat and is compatible with most 24V microprocessor systems. For further detail, see Power Stealing in the OPERATION section.

THERMOSTAT

5-1/2 (140)

THERMOSTAT

AND WALLPLATE

1-3/16

(55)

Temperature Adjustment:

Setpoint temperature is adjusted by using the ▼ or ▲ keys. One press changes the setpoint one degree; pressing and holding changes the setpoint several degrees.

Temperature Setting Range: 30 to 99°F (4 to 37°C).

Hold Select

3-1/2

(89)

Ambient Temperature Range: 30 to 110°F (4 to 43°C). Shipping Temperature Range: -20 to 120°F (-29 to 49°C).

FAN SYSTEM

Auto On

Cool Off Heat

M14675

Operating Relative Humidity: 5% to 90% RH, noncondensing.

Fig. 1. T8000/T8001 Thermostat dimensions in in. (mm).

ORDERING INFORMATION

When purchasing replacement and modernization products from your TRADELINE® wholesaler or distributor, refer to the TRADELINE® Catalog or price sheets for complete ordering number.

If you have additional questions, need further information, or would like to comment on our products or services, please write or phone:

1. Your local Home and Building Control Sales Office (check white pages of your phone directory).

2. Home and Building Control Customer Relations Honeywell, 1885 Douglas Drive North, MN10-1461 Golden Valley, Minnesota 55422-4386 1-800-468-1502

In Canada—Honeywell Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9. International Sales and Service Offices in all principal cities of the world. Manufacturing in Australia, Canada, Finland, France, Germany, Japan, Mexico, Netherlands, Spain, Taiwan, United Kingdom, U.S.A.

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T8000C, T8001C AND T8024D PROGRAMMABLE THERMOSTATS

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.

3. Installer must be a trained, experienced service technician.

4. After installation is complete, check out product operation as provided in these instructions.

CAUTION

Damage to Heating/Cooling System Possible. Be careful when handling wires during installation.

Disconnect power at furnace or main breaker/fuse box.

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 a control. If you have questions, call the Honeywell Customer Response Center at 1-800-468-

1502.

Location

Install the thermostat about 5 ft (1.5m$I above the floor in an area with good air circulation at average temperature. See Fig. 2. 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.

Fig. 2. Typical location of thermostat.

Mounting Wallplate to Wall

IMPORTANT

Level only for appearance. The thermostat functions normally even when not level.

Mount wallplate and the T8000C/T8001C with the screws provided (see Fig. 3) as follows:

YES

5 FEET

[1.5 METERS]

M11338

1. Place the wallplate at the desired location on the wall.

2. Pull the thermostat wire through the wallplate entrance

hole.

3. Fasten the wallplate 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 affecting the thermostat; see Wiring section.

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T8000C, T8001C AND T8024D PROGRAMMABLE THERMOSTATS

Refer to Fig. 6 through 10 for typical wiring hookups.

WALL

MOUNTING SCREWS (2)

WALL ANCHORS (2)

WALLPLATE

M12202

Fig. 3. Mounting wallplate to wall.

Wiring

TERMINAL SCREW

FOR STRAIGHT INSERTION STRIP 5/16 IN. (8 MM)

FOR WRAPAROUND STRIP 7/16 IN. (11 MM)

IMPORTANT

Use an 18-gauge maximum wire for wiring the thermostats.

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. 4.

NOTE: To ensure proper mounting of thermostat, restrict all

wiring to the shaded area in the center of the terminals. See Fig. 5.

The T8000C Thermostats are powered through the heating/ cooling system controls and are adaptable to most 18 to 30 Vac heating-cooling systems.

The T8001C and T8024D Thermostats are powered directly from the system transformer. The T8001C Thermostats are adaptable to most 18 to 30 Vac single-stage heating/cooling systems and the T8024D is adaptable to multistage systems. All T8001C and T8024D thermostats require a common wire connected to the system transformer to operate properly.

KEEP WIRING IN SHADED AREA

MOUNTING SCREW HOLE

Fig. 4. Wiring connections.

WIRING ENTRANCE HOLE

M20212

MOUNTING SCREW HOLE

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Fig. 8. T8000C wiring diagram in heat-cool

system with two transformers.

M18503

Fig. 5. Restrict wiring to shaded area.

+ 8 hidden pages

Honeywell T8024D User Manual

APPLICATION

FEATURES

Contents

SPECIFICATIONS

ORDERING INFORMATION

INSTALLATION