Honeywell T775R 2000 Series User Manual

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INSTALLATION INSTRUCTIONS

62-0249-13

T775R Series 2000 Electronic

Stand-Alone Controller

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. A built-in time clock is standard.

A Reset function is available for all T775R models where

the Sensor B temperature (e.g. outside temperature) is

used to provide reset control for the Sensor A

temperature (e.g. boiler). For example, as the outside

temperature gets colder, the setpoint temperature

automatically adjusts to save energy.

Three T775R models have analog (modulating) outputs

for actuator and motor control.

IMPORTANT

The T775R 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. T775R Controller Configurations.

All models include a digital input for use with the disable or setback option.

The modulating (analog) outputs are 4-20 mA, 0-10 Vdc, 2-10 Vdc, or Series 90 selectable.

Each floating output eliminates two SPDT relay outputs.

The T775R2043 can support a high/low modulating limit at Sensor B for temperature control at Sensor A.

Controller

Model

Description Replaces

SPDT Relay

Outputs

Analog

(Mod)

Outputs

Floating

Outputs

Sensor

Inputs

Nbr of

Sensors

Included Enclosure

T775R2001 Reset Option N/A 4 None 2 2 2 NEMA 1

T775R2019 Reset Option N/A 4 2 None 2 2 NEMA 1

T775R2027 Reset Option T775J1043

T775J1050

T775J1068

2 2 None 2 2 NEMA 1

T775R2035 Reset Option T775J1001

T775J1076

2None122NEMA 1

T775R2043 Reset Option T775J1019

T775J1027

T775J1035

None 2 None

2NEMA 1

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Honeywell T775R 2000 Series Specifications

General

Output Voltage	24 VAC
Display	LCD
Enclosure	Plastic
Type	Controller
Input Voltage	24 VAC
Power Supply	24 VAC
Outputs	2
Storage Temperature	-40 to 150°F
Agency Listings	UL, CE
Inputs	Universal (supports thermistor, 4-20 mA, 0-10 VDC)
Humidity Range	5 to 95% RH, non-condensing