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Honeywell LYRIC T4 Product Specification Sheet

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Honeywell T4 & T4M
Programmable Thermostat
Honeywell T4R
Programmable Thermostat
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".
LYRIC T4, T4R& T4M
PRODUCT SPECIFICATION SHEET
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.
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)

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  Summary of Contents for Honeywell LYRIC T4

  • Page 1 LYRIC T4, T4R& T4M PRODUCT SPECIFICATION SHEET 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.
  • Page 2 T4 PROGRAMMABLE THERMOSTAT THERMOSTAT DISPLAY/BUTTON LAYOUT Reference to the icons: RECEIVER BOX INTERFACE Manual override Status LED Reset - Communication with - Delete binding thermostat - Binding mode...
  • Page 3: Specifications

    : short, high rate transmissions to Class VI (+4%), (EU) 811/2013 (T4M) minimise air time and avoid collisions Honeywell, declares that this thermostat is in compliance Receiver class : RX Cat 2 (ETSI EN300 220-1 version with the essential requirements and other relevant R.E.D.
  • Page 4: Installer Menu

    T4 PROGRAMMABLE THERMOSTAT INSTALLER MENU To enter the Installer menu press the button and then until the display changes (approx. after 3 secs) Specific Applications Setting What do you need to change? Minimum on Note: (cycle per hour) Time (min) To change cycle per hour b.
  • Page 5 T4 PROGRAMMABLE THERMOSTAT Menu item Default What do you need to change? 1LA:Language 1=English 1=English, 2=Dutch, 3=French, 4=German, 5= Spanish, 6=Italian 2CR:Cycle rate 3,6,9,12 3OT:Min on time 1,2,3,4 or 5 minutes 4LL:Lower Temperature 5 °C to 21°C 5UL:Upper Temperature 21°C to 35°C 1= 7 day (different schedule each day of the week) 2= 5+2 (weekday + weekend schedule) 6SO:Schedule options...
  • Page 6: Installation

    T4 PROGRAMMABLE THERMOSTAT INSTALLATION 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 a reference then proceed to installation. The T4 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.
  • Page 7: Setup And Configuration

    T4 PROGRAMMABLE THERMOSTAT Install Thermostat(T4 and T4M only) A. Wall plate B. Surface wiring C. Place thermostat Using a screwdriver open wall plate Connect wires according to wiring Attach the thermostat to the wall terminal cover to connect wires. diagrams and clip the cover closed. plate when finished Power Up the Thermostat (T4 and T4R only) Remove the battery tab and clip the...
  • Page 8 T4 PROGRAMMABLE THERMOSTAT WIRING (T4 and T4M only) WIRING (T4R only)
  • Page 9 T4 PROGRAMMABLE THERMOSTAT TROUBLESHOOTING – T4 and T4M only Problem Display Possible Cause Remedy Thermostat display is blank Batteries exhausted, installed Unclip thermostat from wall and check incorrectly or tab hasn't been battery installation - replace batteries if removed necessary Display shows Battery power critically low Unclip thermostat from wall and replace...

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Lyric t4rLyric t4m