Honeywell Electronic Remote Temperature Controller T775J Bedienungsanleitung Seite 1

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PRODUCT DATA
Copyright © 1995 Honeywell Inc. • All Rights Reserved
T775J
Electronic Remote Temperature Controller
FEATURES
T775 model provides reset control with two
temperature inputs and one of either 4 to 20 mA, 0 to
18 Vdc, or Electronic Series 90
a
Proportional + Integral
modulating output with 0 or 1 relay output stages, or 1
or 2 relay output stages with no modulation.
-40°F to +220°F (-40°C to +105°C) setpoint temperature
range.
-45°F to +225°F (-43°C to +107°C) sensor display
range.
-30°F to + 140°F (-34°C to +60°C) ambient temperature
range.
Linear platinum temperature sensor.
Adjustable temperature range and differential.
Adjustable throttling range of 2° to 30° F or C.
Adjustable reset ratio.
Liquid crystal display (LCD) indication for mode and
output status.
Keypad provides ease of programming and
operation.
Accuracy is within +/- 1°F/C at nominal input voltage,
nominal sensor ambient temperature (77°F (25°C)
operating ambient). Accuracy can vary as parameters
deviate from nominal.
Stages independently programmed for heating or
cooling.
24/120/240 Vac voltage inputs.
Spdt relay outputs.
IMPORTANT
The T775 is an operating control, not a limit or safety
control. When used in applications requiring safety
or limit controls, use a separate safety or limit control
device in conjunction with the T775.
a
The Electronic Series 90 output provided with T775J
models will not drive electromechanical Series 90 slidewire
devices.
GENERAL
The T775J family of electronic remote temperature controllers
provides reset control for chillers, heating and cooling
systems, and other applications where electronic accuracy in
addition to remote sensing is desired.
63-2248-4
Contents
General ............................................................................... 1
Features .............................................................................. 1
Specifications ...................................................................... 2
Ordering Information ........................................................... 2
Installation ........................................................................... 3
Description/Operation ......................................................... 13
Checkout ............................................................................. 18
Seitenansicht 0
1 2 3 4 5 6 ... 19 20

Inhaltsverzeichnis

Seite 1 - FEATURES

PRODUCT DATACopyright © 1995 Honeywell Inc. • All Rights ReservedT775JElectronic Remote Temperature ControllerFEATURES• T775 model provides reset

Seite 2 - ORDERING INFORMATION

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—410쐄 Determine the desired Reset Direction (up or down)and enter on the Device Programming Works

Seite 3 - INSTALLATION

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—411쐎 Press Enter to enter the displayed value into memory.쐅 Press Select four times to return to

Seite 4 - IMPORTANT

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—412SELECTSETENTEROPEN1234381417OPENCLOSEDVOLTAGE SPANSWHEN SWITCH IS DEPRESSED, THEVOLTAGE RANGE

Seite 5 - Fig. 5. Feature locations

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—413SENSED TEMPERATURE = 78oFCALIBRATIONSETPOINT 75oFDEAD BANDDEAD BANDMODULATIONHEATING MODETHRO

Seite 6 - 24 Vac loads

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—414temperature goes down, the control point goes down). Thetype of ratio is selected by using th

Seite 7 - NO COM NC

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—415• 4-20 mA: This is a general purpose current mode output that can drive a 600 ohm maximum loa

Seite 8

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—416degradation. This modulation output can be used withHoneywell Inc Modutrol IVTM Motors that a

Seite 9 - Device Setup

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—417DisplayOnce power is applied or restored to the device, the displaywill count down from 210 u

Seite 10 - Device Programming

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—418CHECKOUTAfter the controller is installed and wired, apply power. Usingthe programmed control

Seite 11 - 63-2248—4

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—419Table 3. Checkout Table.Checkout Table Checkout Table ExampleHeat or Cool Load 1 Load 2Reset

Seite 12

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—42SPECIFICATIONSIMPORTANTThe specifications given in this publication do notinclude normal manuf

Seite 13 - DESCRIPTION/OPERATION

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—420Helping You Control Your WorldHome and Building ControlHoneywell Limited-Honeywell Limitée740

Seite 14

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—43Mounting:Mounts on any suitable horizontal or vertical surface. (SeeFig. 5 for mounting hole l

Seite 15

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—44Mounting Sensor in T7047C1090 Case쐃 Run wires from T775J through wall.쐇 Mount case to wall wit

Seite 16

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—45Fig. 5. Feature locations.IMPORTANTErratic temperature readings from the 193987GASensor can be

Seite 17 - Setpoint Calibration

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—46SELECTSETENTERNO COM NCOUTPUT 1OUTPUT 2NO COM NC120VCOM240V1234SA SB12312345678SA TOD 24V SBC/

Seite 18 - CHECKOUT

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—47SELECTSETENTEROUTPUT 2NO COM NC120VCOM240V1234SA SB12312345678SA TOD 24V SBC/FM8115ASENSOR A24

Seite 19

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—48Fig. 14. Reset control with Series 90 Modutrol® Motor.Fig. 13. Reset control with 240 Vac inpu

Seite 20

T775J ELECTRONIC REMOTE TEMPERATURE CONTROLLER63-2248—49Use shielded cable if any of the above conditions cannot beavoided.Device Setup쐃 Determine the

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