Honeywell Thermostat T775A Manual do Utilizador descarregar pdf

PRODUCT DATA

63-2489—2

T775A,B,C,D

Remote Temperature Controller

APPLICATION

The T775 family of Electronic Remote Temperature

Controllers provide on-off temperature control for ducts, tanks,

chillers, heating and refrigeration units, and other applications

where electronic accuracy in addition to remote sensing is

desired.

In addition, certain models of the T775 family of controllers

provide on-off temperature control of heating, cooling, and

ventilating systems in agricultural confinement buildings,

storage areas and heavy industrial applications.

IMPORTANT

The T775 is an operating control, not a limit or safety

control. If used in applications requiring safety or limit

controls, a separate safety or limit control device

should be used in conjunction with the T775.

FEATURES

• T775A models provide staged on-off control with one

temperature input and one to four relay output stages.

• T775B models provide staged on-off control with two

temperature inputs and two to four relay output stages.

• T775C models provide staged on-off control with one

temperature input and four relay output stages.

• T775D models provide staged on-off control with two

temperature inputs and four relay output stages.

• T775C,D models meet National Electrical Code (Article

547) requirements for animal confinement buildings.

• Setpoint temperature range is -40° to +220°F (-40° to

+104°C).

• Ambient temperature range is -30° to +140°F for one

and two stage models and -30° to +125°F for three and

four stage models.

• Linear platinum temperature sensor with T775A,B.

• Water-tight linear platinum temperature sensor with

T775C,D.

• Adjustable temperature range and differential.

• LCD indication for mode and output status.

• Keypad provides ease of programming and operation.

• Accuracy is within +/- 1°F (at nominal operating

ambient temperature of 77°F and voltage input).

• Stage(s) independently programmed for heating or

cooling.

• 24/120/240 Vac input voltage.

• Spdt relay outputs.

T775A,B

Contents

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

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

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

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

Installation ........................................................................ 5

Wiring ............................................................................... 6

Checkout .......................................................................... 10

1 2 3 4 5 6 ... 15 16

Resumo do Conteúdo

Página 1 - Remote Temperature Controller

PRODUCT DATA63-2489—2T775A,B,C,D Remote Temperature ControllerAPPLICATIONThe T775 family of Electronic Remote Temperature Controllers provide on-off t

Página 2 - SPECIFICATIONS

T775A,B,C,D REMOTE TEMPERATURE CONTROLLER63-2489—2 10CHECKOUTError MessagesThere are seven error messages that can display in response to T775 softwar

Página 3 - 3 63-2489—2

T775A,B,C,D REMOTE TEMPERATURE CONTROLLER11 63-2489—2Fig. 10. Checkout Table and checkout example with Sensor A = 68°F and Sensor B = 73°F.SELECT ENTE

Página 4 - 63-2489—2 4

T775A,B,C,D REMOTE TEMPERATURE CONTROLLER63-2489—2 12Fig. 11. Two-stage control, 24 Vac input, 24 Vac load.COOL MODEHEAT MODERELAY 1 AND 2 ENERGIZEDRE

Página 5 - INSTALLATION

T775A,B,C,D REMOTE TEMPERATURE CONTROLLER13 63-2489—2Fig. 12. Two-stage control, 120 or 240 Vac input; 120 or 240 Vac load.BLKWHT120 VACLOAD 1 LOAD 2M

Página 6 - 63-2489—2 6

T775A,B,C,D REMOTE TEMPERATURE CONTROLLER63-2489—2 14Fig. 13. Four stage control, 120 or 240 Vac input, 120 or 240 Vac load.HEAT MODEM7424ANULLDIFFERE

Página 7 - OPERATION

T775A,B,C,D REMOTE TEMPERATURE CONTROLLER15 63-2489—2Fig. 14. Four-stage control, 24 Vac input; 24 Vac load.HEAT MODENULLDIFFERENTIAL 3TEMPERATURERISE

Página 8 - Programming Keys

Automation and Control SolutionsHoneywell International Inc. Honeywell Limited-Honeywell Limitée1985 Douglas Drive North 35 Dynamic DriveGolden Valley

Página 9 - Device Programming

T775A,B,C,D REMOTE TEMPERATURE CONTROLLER63-2489—2 2ORDERING INFORMATIONWhen purchasing replacement and modernization products from your TRADELINE® wh

Página 10 - CHECKOUT

T775A,B,C,D REMOTE TEMPERATURE CONTROLLER3 63-2489—2Contact Ratings:1/2 hp; 9.8 FLA, 58.8 LRA at 120 Vac.1/2 hp; 4.9 FLA, 29.4 LRA at 240 Vac.125 VA p

Página 11 - 11 63-2489—2

T775A,B,C,D REMOTE TEMPERATURE CONTROLLER63-2489—2 4Fig. 3. Feature locations for T775A,B.Fig. 4. Feature locations for T775C,D.SELECTSETENTER12341234

Página 12 - 63-2489—2 12

T775A,B,C,D REMOTE TEMPERATURE CONTROLLER5 63-2489—2INSTALLATIONWhen Installing this Product...1. Read these instructions carefully. Failure to follow

Página 13 - 13 63-2489—2

T775A,B,C,D REMOTE TEMPERATURE CONTROLLER63-2489—2 6Fig. 7. Sensor mounted on wall.Fig. 8. Parallel-series wiring of sensors.WIRINGCAUTIONElectrical S

Página 14 - 63-2489—2 14

T775A,B,C,D REMOTE TEMPERATURE CONTROLLER7 63-2489—2OPERATIONControl AlgorithmOn/Off ControlThe T775AC operate with one temperature input supplied by

Página 15 - 15 63-2489—2

T775A,B,C,D REMOTE TEMPERATURE CONTROLLER63-2489—2 82. For two sensor models (T775B), determine which loads will be controlled from sensor A or sensor

Página 16 - ® U.S. Registered Trademark

T775A,B,C,D REMOTE TEMPERATURE CONTROLLER9 63-2489—2This selection is accomplished in the Select screen scrolling loop:1. To lock on to either sensor,

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