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Honeywell T775B2032 User Manual

Honeywell T775B2032
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APPLICATION GUIDE AND CROSS REFERENCE
63-7147-05
T775 Series 2000 Electronic
Stand-Alone Controllers

Table of Contents

Other manuals for Honeywell T775B2032

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Honeywell T775B2032 Specifications

General IconGeneral
BrandHoneywell
ModelT775B2032
CategoryController
LanguageEnglish

Summary

T775 Application Tips

Compatible Components

Lists compatible components like sensors and actuators.

Features

T775 Operations

Integral Action

Minimizes droop by summing offset errors over time.

Derivative Action

Provides corrective action proportional to the rate of change.

Setpoint and Differential

Describes setpoint and differential relationship for heating/cooling.

Throttling Range

Explains how throttling range brackets the setpoint.

Reset Programming

Setpoint Offset

Offset from the first output's setpoint for subsequent outputs.

Setback (Optional) Description

Describes optional temperature setback based on time.

T775 Applications

Water Source Heat Pump Loop Water Controller – T775B

Controls loop water temperature for heat pumps.

Chiller – T775B

Controls sump water temperature for chiller operation.

Chiller, Rotary Compressor – T775B

Controls discharge water temperature for rotary compressors.

Cooling Tower Control – T775B2040

Controls cooling tower fan speed and shutdown.

Time-based Control of Fan, Pump, etc. – T775 (all models)

Controls devices based on a daily time schedule.

Damper or Valve Modulation – T775M or T775R

Controls actuator based on temperature input.

Hot Water Reset – T775R

Controls boiler water temperature using a reset curve.

Chilled Water Reset – T775R

Controls chiller water temperature using a reset curve.

Multi-Stage Boiler Control (No Reset) – T775P

Provides multistage boiler control based on discharge water temperature.

Multi-Stage Boiler Control (Reset) – T775P

Provides multistage boiler control with reset based on discharge water temperature.

Multi-Stage Chiller Control (No Reset) – T775P

Provides multistage chiller control based on discharge water temperature.

4 Stage with Pump Output and Reset – T775P using a T775S Expansion Module

Controls staged boilers with pump output and reset.

3 Stage Reciprocating Chiller – T775L

Controls return water in a chiller with freeze protection.

4 Stage Heat and 6 Stage Cool – T775L

Controls boilers and provides multistage cooling.

Carbon Dioxide (CO2) Sensing – T775U

Controls outside air damper based on CO2 sensing.

Resetting Zone Air Temp Based on Outside Air Temp (2 stage cooling)

Calculates zone air temp setpoint using a reset curve.

Resetting Discharge Air Temp Based on Return Air Temp (Modulating cooling valve)

Controls discharge temp based on return air temp using a reset curve.

Using the T775R as a Differential Temperature Controller for Solar Water Heating

Controls circulation between collector and storage tank.

Maintaining Differential Temperature for both Heating and Cooling

Maintains differential temp between sensors for heating/cooling.

T775 Application Replacement Examples

T775M2030 Replacement for W973A Logic Panel

Replaces a W973A Logic Panel with T775M2030.

T775L Replacement for S984 Step Controller

Replaces an S984 Step Controller with T775L.

T775L Replacement for W7100C Discharge Air Controller

Replaces a W7100C Discharge Air Controller with T775L.

T775 Cross Reference

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