Honeywell T4, T4M, T4R User Manual

User Guide

T4, T4R & T4M Thermostat

T4

Programmable Thermostat

T4M

Programmable Modulating
Thermostat

T4R

Wireless
Programmable
Thermostat

EN

2

3

Contents

Thermostat Interface .....................................................................................4

Status Icons .........................................................................................4

Menu & Navigation Icons .............................................................5

Navigating the menu ...................................................................... 5

Menu ................................................................................................................ 6

Heating Schedule .......................................................................6

Clock ..................................................................................................8

Date .................................................................................................... 8

Keypad lock ....................................................................................8

Optimisation .................................................................................. 9

OpenTherm® boiler alerts (T4M only) ............................ 10

Standby mode..........................................................................................10

Away mode .................................................................................................10

Schedule Override ........................................................................................ 11

Temporary Override .............................................................11

Timed Override ...................................................................... 11

Turn Schedule Off ..................................................................... 11

Changing the Batteries (T4 & T4R only) .......................................... 12

Wireless Receiver Box (T4R only) ......................................................... 13

Troubleshooting ............................................................................................ 14

4

Thermostat Interface

Room

temperature

Setpoint

temperature

Days of week

Current time /

Timer

Menu items

Alert / Fault

Setpoint

periods

Low

battery

Heat

demand

Schedule
status

Temperature
adjustment /
Menu navigation

Menu

Confirm

Cancel

Back

Away mode

Timed override

Standby mode

Home screen

Status Icons

Schedule On: Programmed schedule is active.

Schedule Override: Active until next scheduled period

starts or the timed override duration has ended.

Schedule Off: Programmed schedule is turned off.

Low Battery: Power has reached approximately 10% - flashes

when critically low (see Changing the Batteries).

Heat Demand: Room temperature is below setpoint - indicating

there is a demand for heating (boiler activity might occur).

Wireless Signal: Thermostat (T4R only) is connected to the Receiver Box.

Wireless Signal
(T4R only)

5

Menu & Navigation Icons

Menu: Options and settings of your Thermostat:

-

Heating schedule

- Clock

- Date

- Keypad lock

- Optimisation

- OpenTherm® boiler alerts (T4M only)

Back: Return to the previous screen/menu.

Confirm: Confirm a change or selection.

Cancel: Reject a change without saving.

Timed override: Set a timed duration for the override.

Standby: Turns the heating on or off.

Away mode: Turns the heating off for a set number of days.

Home: Returns you directly back to the home screen.

Navigating the menu

• Press button to enter the main menu.

• Press

or buttons to select a menu item - the selected item will flash.

• Press

to confirm the selection.

• Press

or to adjust a setting and

- press

to save change or advance to next selection.

- press

to go back to previous selection.

- press

to save change and return to home screen.