Honeywell YT43MRFBT32 Room Thermostat Instructions

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EN0H-8608GE23 R0323  

Room Thermostat  

DT4/DT4R/DT4M  

Room Thermostat  

APPLICATION  

The DT4 room thermostats provide control of heating  

systems for homes and apartments and bring together the  

slim, modern design with simple functionality, a large and  

clear LED segment display with an easy-to-use wake up  

button. The range has features that are easy to love, it offers  

everything you and your customers want and need.  

The DT4 is compatible with both hybrid and greener energy  

systems and energy-efficient solutions including heat  

pumps, zoning and underfloor heating and cooling devices  

and also works with zone valve applications (note, not with  

electric heating /240 V).  

The range:  

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DT4, DT4R and DT4M are compatible with 24-230 V  

On/Off appliances such as gas boilers, combi-boilers,  

and heat pumps  

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DT4 and DT4M are for wired on the wall installations and  

the DT4R for wireless installations  

DT4R is a thermostat and receiver box that is also  

designed to be backwards compatible with existing  

Honeywell Home RF products. The DT4R is designed  

with the installers in mind and includes a received  

module with mounting options for directly on the wall or  

on the wall box  

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On/Off or OpenTherm® (DT4R/DT4M) compatible  

control  

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A flip up wiring platform for easy wiring  

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DT4M and DT4R versions support OpenTherm®  

appliances, with versions available for both standard  

OpenTherm® and OpenTherm® Smart Power  

User menu allows extra functions to be set at the  

discretion of the user:  

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Heating, Cooling or Heating and Cooling  

On/Off  

SPECIAL FEATURES  

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Slim and modern design and three colourways blends  

into any décor  

Eco Offset duration  

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Installer menu allows extra functions to be set at the  

discretion of the installer to match the homeowner’s  

applications and needs  

Table stand or wall mounted thermostat options to fit  

new and replacement installations  

Modern and clear LED display with adjustable  

brightness for easier viewing in all light conditions  

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LED display brightness  

Cycle rate  

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Clear coloured icon indicating product state  

Heating and cooling changeover  

Upper/Lower set point limit adjustment  

Minimum ON time  

Adjustable parameter functions to allow optimum  

control of connected appliance  

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'Off' position has an integral frost protection setting at  

minimum 5 °C to prevent pipes freezing  

Minimum OFF time  

Temperature Eco Offset  

Factory reset  

Eco Offset - allowing a timed offset temperature for Eco  

mode during heating and cooling  

Backwards compatibility with existing Honeywell Home  

wireless products  

Binding (DT4R only)  

Receiver box with clear LED indication and override  

button  

Product Specification Sheet • EN0H-8608GE23 R0323 • Subject to change  

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Name	Honeywell YT43MRFBT32 Room Thermostat Instructions
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• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• Honeywell

Honeywell YT43MRFBT32 Room Thermostat Instructions Overview

Summary of Contents

• Page 1: Room thermostat The DT4 room thermostats provide control of heating systems for homes and apartments. The range includes DT4, DT4R, and DT4M, compatible with 24-230 V On/Off appliances. DT4 and DT4M are for wired installations, while DT4R is for wireless installations. DT4R is designed to be backwards compatible with existing Honeywell Home RF products. User menu allows extra functions to be set at the discretion of the user. Installer menu allows extra functions to be set at the discretion of the installer. Modern and clear LED display with adjustable brightness for easier viewing. 'Off' position has an integral frost protection setting at minimum 5 °C. Eco Offset allows a timed offset temperature for Eco mode during heating and cooling. Backwards compatibility with existing Honeywell Home wireless products.
• Page 2: DT4/DT4R/DT4M - Room Thermostat Technical data Operating temperatures Power: 230 V AC mains supply Electrical rating: 5A (Resistive), 3A (Inductive) Control form: SPDT Environmental and standards specifications OpenTherm® Smart Power batteries not required Method of operation: Eco Offset function Application coverage: Designed to work with OpenTherm® wired and wireless systems Failsafe: Device will cycle the demand 20% On/80% Off if the temperature sensor fails or communication is lost
• Page 3: DT4/DT4R/DT4M - Room Thermostat Keep parts in their original packaging and unpack them shortly before use. Min. ambient relative humidity: 10 % Min. ambient temperature: 0 °C Max. ambient temperature: 40 °C Max. ambient relative humidity: 90 % Shipping and storage temperature: -20 °C to 55 °C Heat Demand: Room temperature is below set-point - indicating there is a demand for heating. Cooling Demand: Room temperature is above set-point - indicating there is a demand for chiller or cooling appliance. Wireless Signal: Thermostat (DT4R only) is connected to the Receiver Box. Eco: Temporary adjustment of set point. Warning: Alerting you there is an issue with communication or battery level.
• Page 4: DT4/DT4R/DT4M - Room Thermostat Dimensions Overview DT4, DT4M Thermostats Weight: 105 g D4R Thermostat Weight: 130 g Receiver box Weight: 200 g Note: All dimensions in mm unless stated otherwise.
• Page 5: DT4/DT4R/DT4M - Room Thermostat Ordering information Options Series Colour Wired Wireless EAN Code Item No. Smart Power Note: Every package includes 14 languages: English, Dutch, French, German, Italian, Spanish, Portuguese, Bulgarian, Czech, Hungarian, Polish, Romanian, Slovak, Turkish. This document contains proprietary information of Pittway Sàrl and its affiliated companies and is protected by copyright and other international laws.