Honeywell LYRIC T4 - User Manual

Honeywell T4 & T4M
Programmable Thermostat
Honeywell T4R
Programmable Thermostat
The T4, T4M and T4R thermostats are designed to provide
automatic time and temperature control of heating systems
in homes and apartments. The T4 It’s compatible with 24-
230V on/off appliances such as gas boilers, combi-boilers and
heat pump. Also works with zone valve applications but not
with electric heating (240V). The T4M and T4R versions
support also OpenTherm® appliances.
The T4 and T4M are for wired on the wall installations and
the T4R for wireless installations. T4R exist of a thermostat
and a Receiver box.
The solution is designed with the installer in mind and
includes a Receiver module with mounting options for
directly on the wall or on a wall box. Wiring can be from
below or from the back by lifting the terminal platform,
which makes installation quick and easy.
The thermostat has a large and clear fix segment display with
backlight, simple programming philosophy all to make it
easier to install and very user friendly.
The T4 product line is ideal for consumers who want to
control their comfort remotely with a modern design,
simple to program and easy to use product.
FEATURES
• Minimalistic and modern design makes it easy to blend
in any type of homes.
• Table stand or wall mounted thermostat options to fit
new and replacement installations.
• Backlight for easier viewing in all light conditions.
• Factory programmed daily, weekly or 5+2 default
heating schedule.
• Schedule options with 4 or 6 independent set-points to
suit comfort needs.
• Set-point temperature always displayed.
• OFF position has an integral frost protection setting at
minimum 5 °C so that pipes in the house will never
freeze.
• Alert messages to assist in fault finding.
• Timed override function allows to hold a targeted set
point for 1 or 2 hours.
• Away mode allows to reduce the temperature for a
period of 1 to 99 days.
• Automatic time clock adjustment for “Daylight Saving
Time”.
• Receiver box with clear LED indication and override button.
• On/Off or OpenTherm® (T4R/T4M) compatible control.
• A flip up wiring platform for easy wiring.
• User menu allows extra functions to be set at the discretion
of the user:
• Heating schedule
• Date and time setting
• Optimisation
• Lock function
• OpenTherm® alerts (T4M only)
• Installer menu allows extra functions to be set at the
discretion of the installer to match the homeowner’s
applications and needs
• Language selection
• Cycle rate
• Upper / Lower set point limit adjustment
• Minimum ON time
• Daily, weekly or 5+2 schedule option
• 4 or 6 periods a day
• Wired remote sensor
• Fail safe mode
• Clock format
• Daylight saving time change (DST)
• Temperature display offset
• Factory reset
• Binding (T4R only)
PRODUCT SPECIFICATION SHEET
LYRIC T4, T4R& T4M

Honeywell LYRIC T4 Specifications