Honeywell THR840DUK - Manual

Honeywell THR840DUK

Honeywell THR840DUK – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 2 – About your new thermostat; QUICK START GUIDE; Operation; Contents; your new thermostat right away.
  • Page 3 – What is a room thermostat?
  • Page 4 – Install and set up thermostat; eco
  • Page 5 – On/off switch and frost protection; Press the; Heating or cooling control; To switch between heating and cooling, press and hold the
  • Page 6 – Temperature control; Energy-saving ECO mode; ECO
  • Page 7 – System installation; Installation procedure; OK; • Do not install near sources of hot or cold air (radiators,
  • Page 8 – Connect system wiring; Make sure electrical power is off; Strip insulation to expose about 6 mm of; Wiring diagrams; Basic boiler
  • Page 9 – Thermal actuator
  • Page 10 – Activate batteries and mount thermostat; System test; Check the power supply to make sure the heating system is on.
  • Page 11 – Installer setup; To change installer settings:; Installer setup functions; Function; See page 23 for important information
  • Page 12 – Thermostat cannot control cooling unless you select 1; Customised settings for your system
  • Page 13 – Description of functions; • Make sure heating or cooling system has power. Check fuses and
  • Page 14 – Limited Warranty; This does not affect your statutory rights.; by Honeywell; Disposal and recycling
  • Page 15 – Honeywell; For assistance with this product please visit
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User Manual

THR840DUK
Digital Thermostat

50051982-001 Rev. A

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Summary

Page 2 - About your new thermostat; QUICK START GUIDE; Operation; Contents; your new thermostat right away.

homexpert tm by Honeywell THR840DUK Digital Thermostat 3 About your new thermostat What is a room thermostat? ..................4-5 QUICK START GUIDE ............................. 6 Quick reference to controls ....................... 7 Operation On/off switch ...........................................

Page 3 - What is a room thermostat?

User Manual 4 homexpert tm by Honeywell THR840DUK Digital Thermostat 5 ...an explanation for householders A room thermostat simply switches the heating system on and off as necessary. It works by sensing the air temperature, switching on the heating when the air temperature falls below the thermosta...

Page 4 - Install and set up thermostat; eco

User Manual 6 homexpert tm by Honeywell THR840DUK Digital Thermostat 7 The THR840DUK is an easy-to-use thermostat designed to maintain a comfortable environment when you are at home and reduce energy costs when you are away. One touch of the ECO button overrides the normal temperature to maintain a ...

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