Honeywell T7470A1009 Gebrauchsanweisung

® U.S. Registered Trademark EN0B-0469GE51 R0816

T7470A1009

Space-Temperature Sensor

PRODUCT DATA AND INSTALLATION INSTRUCTIONS

GENERAL

The T7470A1009 is equipped with a 20 kΩNTC space-

temperature sensor and can be directly wired to Honeywell

controllers having an NTC 20 kΩinput.

Please refer to the technical specifications of the individual

controllers in order to determine their suitability for use in

conjunction with a given sensor application.

FEATURES

Mountable directly on a wall.

Operating range 43 to 104°F / 6 to 40°C.

EAC- and CE-approved.

IP 30 housing.

Compact.

SENSOR CHARACTERISTIC

The 20 kΩNTC temperature sensor follows a specific

temperature-resistance curve (see Fig. 1).

80 K

70 K

60 K

50 K

40 K

30 K

20 K

10 K

010 20 30 40

40 50 60 70 80 90 100 110 °

°C

temperature (degrees)

elec

cal

ance (

hms)

Fig. 1. Temperature vs. resistance for 20 kΩsensor

T7470A1009 SPACE-TEMPERATURE SENSOR – PRODUCT DATA & INSTALLATION INSTRUCTIONS

Manufactured for and on behalf of the Environmental & Energy Solutions Division of Honeywell Technologies Sàrl, Rolle, Z.A. La Pièce 16, Switzerland by its Authorized Representative:

Automation and Control Solutions

Honeywell GmbH

Böblinger Strasse 17

71101 Schönaich, Germany

Phone +49 (0) 7031 637 01

Fax +49 (0) 7031 637 740

http://ecc.emea.honeywell.com

EN0B-0469GE51 R0816 Subject to change without notice

SPECIFICATIONS

Dimensions (H W D): 2 1-9/16 3/4 in.

(56 46 19.3 mm).

Construction: Two-piece construction (a cover and an

internally wired sub-base). Field wiring 16 to 22 AWG (1.5 to

0.34 mm2) connects to a terminal block.

Operating Temperature: 43...104°F / 6...40°C.

Shipping Temperature: -40...150°F / -40...65°C.

Relative Humidity: 5% to 95% non-condensing.

Accuracy: t = 0.3 K +1% |t - 25 °C| (t in °C)

Safety: terminal box

Protection standard: IP30

Approvals: CE, EAC

BEFORE MOUNTING

All wiring must comply with local electrical codes and

ordinances or as specified on installation wiring diagrams.

Removing the Cover

The cover of the space-temperature sensor can be easily

popped off by applying pressure simultaneous pressure to the

right and left sides at the top and bottom (see Fig. 2).

Fig. 2. Removing the cover

Space-temperature sensor wiring can be sized from 16 to 22

AWG (1.5 to 0.34 mm2), depending on the application. The

maximum length of wire from a device to the space-

temperature sensor is 1000 ft (305 m). Twisted-pair wire is

recommended for wire runs longer than 100 ft (30.5 m).

Wire Insertion

After removing the cover, the wires can be easily inserted into

the terminal block as shown in Fig. 3. The terminals are

insensitive to polarity.

Fig. 3. Wire insertion

To facilitate wire insertion, it is possible to temporarily remove

the terminal block from the housing. After wire insertion,

however, the terminal block should be snapped back into

place.

MOUNTING

Mount the T7470A1009 on an inside wall approx. 54 in.

(1.3 m) from the floor (or in the specified location) to allow

exposure to the average zone temperature.

Maintain a mounting clearance of approx. 4 in. (10 cm) to

both sides of the space-temperature sensor in order to allow

free airflow.

Do not mount the space-temperature sensor on an outside

wall, on a wall containing water pipes, or near air ducts. Avoid

locations exposed to discharge air from registers or radiation

from lights, appliances, or the sun.

Keep wiring at least one ft (305 mm) away from large induc-

tive loads such as motors, line starters, lighting ballasts, and

large power distribution panels. Run space-temperature

sensor wiring separately from 50 Vac or greater power wiring.

The T7470A1009 can be mounted directly onto walls (see

Fig. 4 for dimensions and drilling template), in which case the

type of screws appropriate to the wall material should be

used.

ABS

4.5

27.8

32.7

19.3

3.25

Fig. 4. T7470A1009 dimensions (in mm)

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