Honeywell DT90- User Manual
Honeywell DT90– User 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.
Table of Contents:
- Page 2 – SPECIFICATIONS; ELECTRICAL
- Page 3 – ORDERING SPECIFICATION; MAIN FEATURES
- Page 4 – INSTALLATION; Location
- Page 5 – WIRING CONNECTIONS
- Page 6 – INSTALLER MODE; Specific Applications
- Page 8 – ENERGY EFFICIENCY AND THE ENVIRONMENT
EN0H 8578 UK07 R1 12/08
DT90
DIGITAL ROOM THERMOSTAT
PRODUCT SPECIFICATION SHEET
The new
DT90
family of digital room thermostats is a
range of market leading products designed to provide
comfort with economy in modern heating systems.
Its large display and simple button interface make
DT90
extremely easy to use.
Energy efficiency is addressed by state-of-the-art TPI
control performance and an
ECO
button energy saving
feature.
Applications include control of gas or oil-fired boiler
systems, underfloor heating, electric heating and zoning
systems.
W ith a modern fresh look that complements any style of
décor, and a range of valued features for users and
installers alike,
DT90
sets the standard for simple
environmentally-friendly room thermostats.
FEATURES
Energy saving TPI control performance
Advanced self-learning control adapts to the
environment and ensures close temperature
control with minimum energy usage
Slim modern styling
Large high contrast display with easy-to-read
characters
Simple user interface
Temperature setting procedure eliminates the
risk of accidental setpoint change
Display shows room temperature, with option
to inquire about setpoint
5°C to 35°C setpoint range with 0.5°C
increments
Temperature set using up or down buttons
Off/standby button, allowing manual switch off,
with frost protection active
Adjustable off/standby setpoint 5°C to 16°C or
DT90 can be set to off completely
Battery powered by 2 x AA (LR6) alkaline cells
Up to 4 years battery life (minimum 2 years),
with battery low warning
Simple battery change by unclipping front
cover
Installer Mode allows the thermostat to be
customised for the application and the needs of
the user
NVRAM storage of setup parameters, ensuring
these are never lost
Setpoint limits can be programmed in
24…230Vac SPDT potential-free contacts for
simple 2-wire installation
8 A resistive, 3 A inductive switch rating
Surface or switch-box mounting options
Sensor fault self-diagnostics
Heat/cool changeover operation mode possible
FEATURES UNIQUE TO DT90E ECO MODEL
Energy saving ECO button allows user to
change to a lower, energy saving setpoint for a
timed period of
their choosing (1…24 hours)
Display shows countdown of time remaining in
ECO energy saving mode
"Loading the manual" means you need to wait until the file loads and becomes available for online reading. Some manuals are very large, and the time they take to appear depends on your internet speed.
Summary
DT90 DIGITAL ROOM THERMOSTAT 2 EN0H 8578 UK07 R1 12/08 SPECIFICATIONS CONTROLS / DISPLAY LAYOUT ELECTRICAL Power supply 2 x 1.5V IEC LR6 (AA) Alkaline cells Battery life Typically 4 years, minimum 2 years (with correctly specified alkaline cells) Battery low warning Display will indicate when ...
DT90 DIGITAL ROOM THERMOSTAT 3 EN0H 8578 UK07 R1 12/08 ORDERING SPECIFICATION Extra-Large Display The DT90 display is more than double the size of its predecessor, ensuring it is even easier to read and allowing more information to be displayed, when required. The large characters and high contrast ...
DT90 DIGITAL ROOM THERMOSTAT EN0H 8578 UK07 R1 12/08 4 INSTALLATION Location DT90 is for use in normal domestic environments, and so should be located inside the house or building where the ambient temperature is within the range 0 to 40°C. Avoid locations with high levels of condensing moisture. As...
