Honeywell T7147 User Manual

T7147

Remote Sensor

and Override Module

PRODUCT DATA

FEATURES

• Locking cover.

• Override key.

• Warmer/Cooler keys on some models.

• Key-lock override security available.

APPLICATION

The T7147 Remote Sensor and Override Module is for use with the T7300/Q7300 Programmable Commercial Thermostat system. The T7147 provides space temperature sensing, switch initiation, and indication of overrides from a remote location.

Contents

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

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

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

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

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

Wiring ............................................................................... 4

Operation .......................................................................... 6

Checkout .......................................................................... 6

63- 4065- 1

T7147 REMOTE SENSOR AND OVERRIDE MODULE

SPECIFICATIONS

IMPORTANT

The T7147 is factory-calibrated. It does not require field calibration and cannot be field adjusted.

1-13/16 (46)

Models:

T7147A1002 Remote Temperature Sensor & Override

Module: Connects to Q7300. Contains remote sensor, LED and push-button switch to invoke 3 Hour Occupied from remote location.

T7147A1010 Remote Temperature Sensor & Override

Module: Connects to Q7300. C ontains rem ote sens or , LED and 3 push-button switc hes to invoke 3Hour Occupied and Warmer/Cooler setpoint adjustments from remote location.

T7147A1028 Remote Temperature Sensor & Override

Module: Connects to Q7300. Same as T 7147A1010 ex cept includes key-lock sw it ch to ena ble/disable remote ove rride operation.

Mounting:

Mounts on wall or 2 x 4 inch verti cal outlet box w ith

screws provided.

Dimensions:

See Fig. 1.

Wiring:

Maximum cable length between T7300/Q7300 and T7147:

500 ft (152 m); use 18, 20 or 22 AWG wire.

Temperature offset per 500 ft (152 m) of 2-wire sensor wire

cable (1000 ft [305 m] total length): See Table 1.

Temperature Sensor:

Thermistor-resistor (NTC) element.

Sensor Resistance:

Resistance decreases as temperature increases (Fi g. 2). 1420 ohms nominal at 75°F (24°C); resistance changes

15 ohms for each 1°F (0.6°C) temperature change.

Temperature Ratings:

Ambient: 40 to 110°F (4 to 43°C). Shipping: -30 to +150°F (-34 to +66°C).

Humidity Ratings:

5 to 90% RH, non-condensing.

Accessories:

230492A Keys for T7147A1028.

3 HOUR

OCCUPIED

1-1/8 (29)

1-5/8 (41)

NOT ALL MODELS HAVE WARMER/COOLER FUNCTION.1

3-3/4

(96)

4-5/8 (117)

1/4 (6)

3-1/4

(83)

COOLER

2-13/16 (71)

WARMER

3-5/8 (92)

M17881

Fig. 1. T7147 dimensions in in. (mm).

Table 1. Temperature Offset for Remote Sensor Wiring.

Temperature Monitored 18 AWG 20 AWG 22 AWG

50 to 90°F -0.4°F -0.7°F -1.0°F 10 to 32°C -0.3°C -0.4°C -0.6°C

RESISTANCE (OHMS)

2000

1800

1600

1400

1200

1000

-10

30 40 50

0 10

TEMPERATURE (DEGREES)

1420 OHMS AT 75 F (24 C)

70 80 90

20 30 40

100

M4034

Fig. 2. T7174 Remote Sensor Resistance

change with change in temperature.

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:

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

Home and Building Control Customer Relations Honeywell, 1885 Douglas Drive North

Minneapolis, Minnesota 55422-4386 (800) 328-5111 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.

63-4065—1 2

T7147 REMOTE SENSOR AND OVERRIDE MODULE

INSTALLATION

When Installing this Product...

Read these instructions carefully. Failure to follow them could damage the product or cause a hazardous condition.

Check the ratings given in the instructions and on the product to make sure the product is suitable for your application.

Installer must be a trained, experienced service technician.

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

CAUTION

Electrical Shock or Equipment Damage Hazard. Can shock individuals or short equipment circuitry.

Disconnect power supply before installation.

Location

Select a location on an inside wall away from:

• drafts or dead air spots behind doors and corners.

• hot or cold air ducts.

• radiant he at from the sun or electrical equipment.

• unheated areas behind the thermostat wall.

Locate the T7147 about 5 ft (1.5 m) above the floor in an area with good air circulation within easy reach of users.

Mounting

Loosen the cover-locking screw with the Allen wrench provided and remove the T7147 cover.

Run wire to the selected location.

Thread wire through T7147 base semicircular hole.

Make connections to T7147 (see Wiring section).

If air drafts occur through the wall opening, eliminate them with suitable insulation material.

Four mounting screws are provided: a. 2 self-tapping type for wall mounting. b. 2 for outlet box mounting.

Select the proper screws for the application.

Fasten the T7147 to the wall or outlet box with screws through the T7147 base assembly mounting holes. (See Fig. 3).

Replace the cover assembly and tighten the coverlocking screw.

WALLPLATE

MOUNTING SCREW (2)

MOUNTING TAB (2 INSIDE COVER)

COOLER

3 HOUR

OCCUPIED

WARMER

OUTLET BOX

THERMOSTAT

MOUNTING TAB SLOT (2)

WIRING TERMINALS

COVER LOCKING SCREW

M17884

Fig. 3. Mounting the T7147.

3 63-4065—1

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