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Honeywell DT90A1008 Digital Room Thermostat

Extended warranty 5 years

Honeywell DT90A1008 Digital Room Thermostat

RESIDEO
  • Product code: DT90A1008
  • EAN : 5025121386135
  • Manufacturer code: DT90A1008
  • Warranty: 5 years

The Honeywell DT90A1008 digital room thermostat, suitable for any interior, provides the ideal combination of comfort and energy-efficient operation for heating systems. More information

  • Delivery

    Delivery to Belgium (days are avarages)

    FedEx:
    2.7 workdays € 7,02
    Bpost HD (Home Delivery):
    4.4 workdays € 10,64
    BPost - PP (Pick-up Point):
    3.9 workdays € 9,91
    FedEx Priority:
    1.7 workdays € 12,71
    DHL Express:
    1.2 workdays € 16,94

    DHL Express: 1.2 workdays, € 16,94

  • In stock 2 pcs  
     
List price € 75,44
Price excluding VAT € 46,14
Price with VAT 21 % € 55,83
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Parameters and catalogs

Control Displej
Control TYPE
External sensor No
Measurement accuracy 0.5 °C
Power Supply 2x AA 1.5 VDC
Setting range 5...35 °C
Weight 0.19 kg

Catalog sheet download

Download PDF

The room thermostat with a large LCD display and simple controls is perfectly suited for controlling gas or oil heating systems, underfloor and electric heating, and zoned systems. Additionally, it can also be used in cooling applications. It combines elegant design and an easy user interface with efficiency and high functionality.

For its operation, the thermostat requires 2 AA alkaline batteries, which last 2-4 years, and it will alert you if the batteries are running low. The thermostat can be mounted on an installation box or directly on the wall and is intended only for fixed wiring.

Large Display

The large display with high contrast resolution offers easy readability and displays more information. The large characters are especially appreciated by people with weaker eyesight. In addition to the current temperature, it is possible to set the display of the desired temperature.

Easy Operation

The desired temperature can be set using the arrow buttons on the right side of the display. The temperature adjusts in half-degree increments.

Power Button and Frost Protection

If the thermostat is no longer needed, it can be turned off by holding the power button for 2 seconds. Upon turning it off, frost protection automatically activates (adjustable between 5 and 16 degrees). Frost protection can also be turned off in the thermostat's installation mode, resulting in a complete shutdown.

Installation Mode

The thermostat features several parameters that each user can set according to their preferences. Settings can be made by pressing a specific sequence of buttons. Adjustable parameters include:

  • minimum relay switch-on time
  • number of cycles per hour
  • proportional band width
  • measured temperature compensation
  • upper limit of desired temperature setting
  • lower limit of desired temperature setting
  • choice between heating/cooling mode
  • frost protection temperature setting
  • electric heating power
  • reset all parameters to factory settings

Settings Storage in NVRAM

All thermostat settings are stored in its NVRAM memory, which retains them even when the batteries are removed and power is interrupted.

Advanced Self-Learning TPI Control

The thermostat uses a self-learning time-proportional control algorithm based on "fuzzy logic". This results in faster response and better performance in steady state. Temperature regulation is thus very precise and increases energy savings.

We respond to your product queries as quickly as possible, usually within 24 hours.

What the green triangular (ECO) button does Activates ECO mode Lowers the set temperature by a fixed offset (typically –3 °C) from the current setpoint Used for temporary energy saving (short absence, nighttime, etc.) Pressing the button again cancels ECO mode and restores the previous set temperature
- Bola , on the 13. 01. 2026

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