Honeywell T775A Series - User Manual

INSTALLATION INSTRUCTIONS
62-0254-13
T775A/B/M Series 2000
Electronic Stand-Alone
Controllers
PRODUCT DESCRIPTION
The T775 electronic stand-alone controllers are the next
generation of commercial and agricultural controls
capable of remote sensing of temperature and providing
switched and/or proportional outputs to various types of
loads.
Five models have analog (modulating) outputs for
actuator and motor control, and NEMA-4 weatherproof
enclosures are available for wet environments.
IMPORT ANT
Each T775A/B/M controller 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 is
required.
Table 1. T775A/B/M Controller Configurations.
Controller
Model
a
a
All models include a digital input for use with the disable or setback option.
Description Replaces
SPDT
Relay
Outputs
Analog
(Mod)
Outputs
b
b
The modulating (analog) outputs are 4-20 mA, 0-10 Vdc, 2-10 Vdc, or Series 90 selectable.
Floating
Outputs
c
c
Each floating output eliminates two SPDT relays.
Sensor
Inputs
Nbr of
Sensors
Included Enclosure
T775A2009 Standard T775A1001 1 None None 1 1 NEMA 1
T775B2016 Standard N/A 2 None 1 2 1 NEMA 4X
T775B2024 Standard T775C1009 T775D1008 4 None 2 2 1 NEMA 4X
T775B2032 Standard T775A1019 T775B1000 2 None 1 2 1 NEMA 1
T775B2040 Standard T775A1027 T775A1035
T775B1018 T775B1026
T775B1042
4None2 21 NEMA 1
T775M2006 Modulating N/A None 2 N/A 2 1 NEMA 1
T775M2014 Modulating T775G1005 T775G1013
T775G1021 T775G1039
42 N/A
2
d
d
These models can support a high/low modulating limit at Sensor B for temperature control at Sensor A.
1 NEMA 4X
T775M2022 Modulating N/A 2 2 N/A
2
d
1 NEMA 4X
T775M2030 Modulating T775E1114 T775F1022
T775F1055 T775F1089
42 N/A
2
d
1 NEMA 1
T775M2048 Modulating T775E1015 T775E1023
T775E1056 T775E1064
T775E1098
22 N/A
2
d
1 NEMA 1
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Honeywell T775A Series Specifications

General

Brand	Honeywell
Model	T775A Series
Category	Controller
Language	English

Summary

Installation Instructions

Product Description

Explains the T775 electronic stand-alone controllers and their capabilities.

Before Installation

When Installing This Product

Provides essential safety and preparation steps before installing the controller.

Installation and Setup

Mounting

Details procedures for mounting the controller and temperature sensors.

Wiring

Covers the procedures and considerations for wiring the controller.

Checkout

Temperature Sensor Calibration

Guides on calibrating sensors based on wire length and temperature.

Interface Overview

Using the LCD Panel Interface

Describes how to navigate and use the controller's LCD and keypad.

Programming

Setpoint and Differential

Details how to set temperature setpoints and differentials for relays.

Entering Program Mode

Steps to enter the programming mode for controller configuration.

Setup (Advanced Options)

Setting up the Sensors

Guides on configuring sensor parameters like number, units, and calibration.

Setting up the Outputs

Details configuration for modulating and relay outputs.

Scheduling

Creating a Schedule

Instructions on how to set daily temperature schedules for events.

Troubleshooting

Errors and Diagnostics

Explains error codes and diagnostic messages for sensor issues.

Specifications

Safety Compliance

Lists compliance with safety standards like UL.

FCC Compliance Statement

Details FCC compliance for digital devices and interference.