Honeywell T4 Thermostats, 7 days, +21 → +35 (Upper) °C, +5 → +21 (Lower) °C

  • RS Stock No. 144-4025
  • Mfr. Part No. Y4H910RF4003
  • Manufacturer Honeywell
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

Compatible with 24-230V on/off appliances such as gas boilers, combi-boilers and zone valves
The T4 can be used as a temperature sensing device in an S or Y Plan system
Well suited to control combination boiler installations or additional zones in an S Plan Plus system
Wireless communication between thermostat and receiver box with 30m range
Pre-bound to the wireless relay box, no need to establish a binding
On screen text display and function buttons to ensure simplified programming and operation for all users
Energy saving TPI control
Optimum stop & start & Delayed start features that learn how the room is heated
Two wire, volt free connections are ideal for use with combination boilers
Easy to fit with a three step installation process: Wire, Power Up and Test, Configure
New improved wall plate with extra wiring space
Optional Wired external sensor available (wired versions only)
On screen heat demand icon makes start up testing easy
Simple push button access to configuration menus
Adjustable Frost protection
Away mode with specific temperature set (number of days changeable)
Temporary schedule override until next set point or for 1 or 2 hours
Schedule can be turned off – will operate as a variable setting thermostat only
Displayed on an extra-large LCD screen
Automatic Summer/Winter time change
7-day programming with 7 day: 5/2 or single day schedules
Four or six independent time & temperature settings (default is 4)
Pre-configured 5/2 heating schedule|•Battery powered (with low-power indicator)
Easy change battery compartment
Optional backlight with extended light on time period
Burner 'ON' symbol

This is a modern wireless 7-day Programmable Room Thermostat. It is designed to provide automatic time and temperature control of domestic systems in domestic or light commercial premises.

Specifications
Attribute Value
Program Duration 7 days
Supply Voltage 24 → 230 V
Maximum Temperature +21 (Lower) °C, +35 (Upper) °C
Minimum Temperature +5 (Lower) °C, +21 (Upper) °C
Temperature Range +5 → +21 (Lower) °C, +21 → +35 (Upper) °C
Series T4
Temporarily out of stock - back order for despatch 03/02/2020, delivery within 4 working days from despatch date
Price Each
MYR 924.80
units
Per unit
1 +
MYR924.80
Related Products
Suitable for surface or conduit box mounting. Replaces ...
Description:
Suitable for surface or conduit box mounting. Replaces most standard room thermostatsDigital display with ’call for heat’ symbolVoltage free output contactsUses 2 AA batteries (supplied).
Compatible with tariffs based on Greenwich Mean Time, ...
Description:
Compatible with tariffs based on Greenwich Mean Time, and varying with British Summer Time, this controller allows 3 off-peak heating periods to be set every 24 hours to maximise use of cheap rate tariffs, including split tariffs. For use with ...
Compact, programmable thermostat with 4 different ’target’ temperatures ...
Description:
Compact, programmable thermostat with 4 different ’target’ temperatures and microprocessor control providing a switching differential of 0.5°C while ensuring that boiler cycling is kept to a minimumIdeal for combi-boiler/zone control, etc.4 weekday and 4 weekend temperature levels per 24 hoursReduces ...
With an electronic sensing element for accurate temperature ...
Description:
With an electronic sensing element for accurate temperature controlRetains the traditional analogue dial and overall sizeSuitable for surface or conduit box mountingThermostat clips onto a backplate for easy, neat installationLarge dial for accurate settingRange limiting stops which can also provide ...