Honeywell THR842D Wireless Room Thermostat User Guide
- June 6, 2024
- Honeywell
Table of Contents
THR842D
Wireless Room Thermostat with ECO energy-saving feature
User Guide
VIEW ALL honeywell THERMOSTAT MANUAL
Room temperature
Set temperature, inquiry
Set temperature, adjustment
Switch ON/OFF (frost protection enabled)
Operating indicator
Heating demand indicator
Frost protection
Fault indicator
Low battery indicator
RF communication
Loss of RF communications. The Relay Box operates in Failsafe mode, as set by Installer.
Heat/cool change over
Energy-Saving ECO feature
Pressing the green ECO button gives a timed period at a different, predefined
temperature (18°C)
To set the ECO energy
savings time period
Display shows a countdown of ECO time remaining
Pressing or will now allow the ECO temperature to be changed
To exit ECO mode, press ECO button again
Operation of the Relay Box
Automatic Operation
Press the button to temporarily override the current relay position
Temporary Manual Override
Press the button to temporarily override the current relay position
If RF communication is lost, red LED lights and Relay Box operates in failsafe
mode, as set in Installer Mode
For assistance with this product
please visit livewell.honeywellhome.com
bk-electronic GmbH
Hardhofweg 40
74821 Mosbach
Germany
Country of origin: UK
©2019 Resideo Technologies Inc. This product is manufactured by Resideo and
its affiliates. The Honeywell Home trademark is used under license from
Honeywell International Inc. All rights reserved.
HONEYWELL THR842D Wireless Room Thermostat User Guide
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