HVAC / Thermostats & Controls
User Manual for Drayton Digistat 2290B Programmable Room Thermostat
Quick guide for the Drayton Digistat 2290B programmable room thermostat. Includes installation steps, wiring diagrams, installer options, programming instructions, and technical specifications.
Quick answers from the manual
Quick answer
- The Drayton Digistat 2290B is a programmable room thermostat. Installation requires mounting the backplate, wiring according to the diagram, and inserting 2 AA batteries. Programming is managed via the display interface. p. 1, 3, 4
Key actions
- Install batteries p. 1
- Enter Installer Options p. 2
- Set Schedule p. 4
First start
- The unit is pre-set at the factory with a real-time clock and pre-programmed schedule. p. 3
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Problems and fixes
Sensor fault
Central heating output is reduced to 30% (ON for 3 minutes, OFF for 7 minutes).
p. 2Maintenance and reset
- Reset to factory settings via Installer Option 20. p. 2
Technical specifications
| Parameter | Value | Meaning | Pages |
|---|---|---|---|
| Power supply | 2x AA 1.5V alkaline batteries | Battery power source | p. 3 |
| Temperature range | 5°C to 30°C | Adjustable temperature range | p. 3 |
| Switch type & rating | 3(1)A at 230V/50Hz | Electrical switching capacity | p. 3 |
Where to find it in the PDF
- Installation Guide p. 1
- Installer Options p. 2, 3
- Technical Data p. 3
- Programming Instructions p. 4
Table of contents
Manual images
Click an image to enlargeQuick Guide
The Drayton Digistat 2290B is a 3rd generation programmable room thermostat designed for 24-hour, 5-2 day, or 7-day scheduling. It features a real-time clock that automatically adjusts for summer/winter time changes. The device is suitable for basic boilers, combi boilers, and zone valve applications.
Installation
Warning: If you do not have the knowledge to install the thermostat safely, you must arrange for a competent electrician to install it for you. Ensure the mains supply is switched off before starting.
- Remove Cover: Release the 2 screws at the bottom of the unit to remove the front cover.
- Mounting: Fix the back plate directly onto the wall using suitable wall plugs and screws, or mount it over an existing wall box.
- Wiring: Complete the wiring according to the connection suggestions. For basic and combi boilers, battery or mains supply is suitable. For electric heat applications, use mains supply only.
- Battery Installation: Slide the battery cover at the bottom downwards and install the 2 provided AA batteries.
- Final Assembly: Close the black hinged terminal cover, replace the front cover by locating the two latches at the top, and fasten the 2 screws at the bottom.
General Operation
The thermostat offers temperature control day and night. In Auto Mode (calendar icon visible), you can temporarily change the temperature using the + and - buttons. The new temperature will flash on the screen and remain set until the next pre-programmed event.
Programming
The Digistat comes with pre-programmed settings suitable for a typical 9-5 schedule. To adjust times and temperatures:
- In Auto Mode, press the settings button once.
- Use + and - to select the day or set of days. Press O to confirm.
- Adjust the start time using + and - and press O to confirm.
- Adjust the temperature using + and - and press O to confirm.
- Repeat for subsequent periods. Press O when 'SAVE' is flashing to save the schedule.
Installer Options
To access the Installer Options menu, press the settings button for 3 seconds. Use + and - to scroll to 'Installer Options' and press O to select. Common options include:
- Partial Sight Assistant: Audible tones for setpoint adjustments.
- Frost Protection: Switches heating on if the temperature falls to 5°C.
- Minimum/Maximum Setpoint Limits: Restricts the temperature range.
- Optimum Start: Adjusts the thermostat early so the ambient temperature is at the required level when the event starts.
- Valve Protection Time: Ensures relay output is operated for at least 1 minute each week.
- Sensor Fault Function: Reduces heating output to 30% in case of a sensor fault.
- Installer Settings Lock: Allows locking the menu with a 3-digit code.
- Reset: Restores factory settings (Service Interval settings are not reset).
Technical Data
- Power Supply: 2x AA 1.5V alkaline batteries.
- Switch Type & Rating: 3(1)A at 230V/50Hz.
- Temperature Range: 5°C to 30°C.
- Operating Temperature: 0°C to +40°C.
- Protection Level: IP30.
- Operating Frequency: 2402-2480 MHz.
- Max RF Power: +10dBm.
Manufacturer information
Schneider Electric
Practical help
Common problems
Thermostat not heating
Check if the setpoint is higher than the current room temperature. Ensure the unit is in the correct mode and wiring is correct.
Installer menu locked
The menu is locked with a 3-digit code. If forgotten, contact the Technical Helpline.
Clock is incorrect
The clock is pre-set at the factory and automatically adjusts for GMT/BST changes; manual adjustment is not required.
Before use
- Ensure mains supply is switched off before installation.
- Verify you have 2x AA batteries.
- Check if your heating system is compatible (Basic/Combi boiler, zone valve, or electric heat).
- Ensure the thermostat is not covered by curtains or blocked by furniture.
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Specs in practice
- Temperature Range
- The thermostat can be set between 5°C and 30°C.
- Protection Level (IP30)
- Protected against solid objects over 2.5mm; not waterproof.
- Switch Rating
- 3(1)A at 230V/50Hz, suitable for standard heating systems.
Images and diagrams
- Fig 1: Removing the front cover to access mounting holes.
- Fig 2: Fixing the back plate to the wall.
- Fig 3: Wiring diagram for connection.
- Fig 5-7: Battery compartment access and installation.
Model compatibility
- Suitable for Basic boiler, Combi boiler, and Basic boiler with zone valve.
- Electric Heat application requires Digistat with mains supply only.
Manual page author
Michael Turner
Technical manual editor