Honeywell T6 Manual
- User manual (16 pages) ,
- Manual (11 pages) ,
- Quick start manual (2 pages)
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Turn OFF the power and remove the old thermostat
To ensure your safety, always make sure mains power is switched OFF before accessing wiring.
Before removing the old thermostat take a picture of the old thermostat's wiring as reference then proceed to installation.
The T6 thermostat should not be placed near draughts, in direct sunlight or near heat sources. It should be at least 1.2 - 1.5 meters from the floor.
Maximum cable length between Receiver box and thermostat: 15m for 0.5mm² cable or 20m for 1.0mm² cable.
Prepare Receiver Boxfor installation
Before installation of the Receiver Box
Find a suitable location near to the boiler.
Loosen the front screw to remove cover or tighten it when the cover is back in place.
Needed during installation:
- Cable with 2 wires from the Receiver Box (R4H810A) to thermostat.
- Cable with 2 wires from the boiler to Receiver Box.
- The Receiver Box requires 230V power
Install the T6 thermostat
Remember to use the same wires that you connected to the Receiver Box when connecting to the thermostat.
- Using a screwdriver open wallplate terminal cover to connect wires
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- Connect 2 thermostat wires to the T and T terminals and close cover.
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- Attach the thermostat to the wallplate when finished.
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Complete installation
Turn ON mains power to the Heating Appliance and Receiver Box.
Set Up and configuration
- Touch
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to begin setting up the thermostat.
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to begin 
- Select your language.
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- Set the clock format, time and date.
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- Touch
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to finalise setup. (![]()
to setup using the App is currently unsupported)
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to finalise setup. 
Once setup is completed, if you need to change more settings go to the advanced menu. To access the advanced menu press 
for 5 seconds.
In the advanced menu the following settings can be adjusted:
| Menu Item | Default | Options |
| LANGUAGE | English | 0 = English, 1 = Français, 2 = Español 3 = Deutsch, 4 = Nederlands, 5 = Italiano |
| OPENTHERM | - | OpenTherm boiler data when available |
| CYCLE RATE | 6 | 3, 6, 9 or 12 |
| MINIMUM ON TIME | 1 minute | 1, 2, 3, 4 or 5 minutes |
| HEAT RANGE | Min = 5.0ºC Max = 35.0ºC | Min: 5ºC to 21ºC, Max: 21ºC to 35ºC |
| SCHEDULE OPTIONS | Daily | 1 = Daily schedule, 2 = 5+2 days schedule |
| EXTERNAL SENSOR | No sensor | 0 = No sensor, 1 = Room sensor Opt. start: 0 = OFF, 1 = ON, 2 = Delayed start |
| OPTIMISE | Opt. start OFF Opt. stop OFF | Opt. start: 0 = OFF, 1 = ON, 2 = Delayed start Opt. stop: 0 = OFF, 1 = ON |
| CLOCK | Format: 24h Time: --:-- Date: 01/09/16 | Clock format: 1 = 12h, 2 = 24h Setup time and date |
| LOW LOAD CONTROL | ON | 0 = OFF, 1 = ON |
| TEMPERATURE OFFSET | 0.0ºC | 1.5 ºC to 1.5ºC |
| RESET | - | Factory, schedule, WiFi and HomeKit reset |
| FAILSAFE | OFF | 0 = OFF, 1 = ON |
Wiring Diagrams
- Basic 230V boiler
![Wiring Diagrams - Example 1 - Basic 230V boiler]( "Honeywell - T6 - Wiring Diagrams - Example 1 - Basic 230V boiler")
- Combi boiler
![Wiring Diagrams - Example 2 - Combi boiler]( "Honeywell - T6 - Wiring Diagrams - Example 2 - Combi boiler")
- OpenTherm boiler
![Wiring Diagrams - Example 3 - OpenTherm boiler]( "Honeywell - T6 - Wiring Diagrams - Example 3 - OpenTherm boiler")
- Two-port zone valve or S-plan
![Wiring Diagrams - Example 4 - Two-port zone valve or S-plan]( "Honeywell - T6 - Wiring Diagrams - Example 4 - Two-port zone valve or S-plan")
* See boiler specifications for correct terminals
For other wiring diagrams visit:
https://hwllhome.co/uk-wiring
Need help? For assistance please visit: getconnected.honeywellhome.com
200 Berkshire Place
Winnersh Triangle
Berkshire RG41 5RD Phone: 0300 130 1299
Documents / Resources
References
Download manual
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
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