Daikin EKRTW User manual

OPERATION MANUAL

Room thermostat

EKRTW

131224

1 2 3 4 5 6 7 8

16 17 191815 222120 23

EKRTW

Room thermostat

4PW44897-1

Operation manual

WARNINGS

■

Never let the thermostat get wet, this may cause an electric

shock or ﬁre.

■

Never press the buttons of the thermostat with a hard,

pointed object. The thermostat may be damaged.

■

Never inspect or service the thermostat yourself, ask a

qualiﬁed service person to do this.

Contents

1. Main features.......................................................................... 2

2. Buttons on front cover and LCD.............................................3

3. Getting started ....................................................................... 5

4. Description of the function modes and menus....................... 6

5. Using the thermostat..............................................................7

6. Setting up codes in the user menu....................................... 12

7. Troubleshooting .................................................................... 15

8. Maintenance......................................................................... 16

9. APPENDIX: factory-deﬁned programs ................................. 17

EKRTW Room thermostat Operation manual

THANK YOU FOR PURCHASING THIS THERMOSTAT.

READ THE MANUAL ATTENTIVELY BEFORE USING

THE INSTALLATION. AFTER READING THE MANUAL,

STORE IT IN A SAFE PLACE FOR FUTURE USE.

Operation manual

EKRTW

Room thermostat

4PW44897-1

1. Main features

The EKRTW is a state of the art programmable electronic

thermostat, which regulates your

system, where comfort, simplicity and energy saving go hand in

hand. It is the wired room thermostat option kit, mainly used for

new installations.

The main features are:

■

Room temperature control, based on the measurements of

the internal sensor.

■

Cooling and heating mode (with possibility to disable cooling

function if not required).

■

Off function (with integrated frost protection).

■

Comfort and reduced function modes, using the comfort and

reduced setpoint respectively.

■

Holiday function mode.

■

Weekly schedule timer with 2 custom (

◊1

◊2

) and 5

predeﬁned (

π1

π5

) schedules.

- The predeﬁned schedules use the comfort and reduced

setpoints of the comfort or reduced function mode.

- The custom schedules use independent, programmed

setpoints (up to 12 setpoints per day).

-You can lock the schedule timer which allows a temporary

override with the comfort or reduced setpoint by means of

a single key push.

- It is possible to link a custom schedule to cooling and

heating mode.

- Comfort startup control. The schedule timer will

automatically start up in advance, trying to reach the

programmed setpoint at the programmed time.

■

Clock (with day and month).

■

Key lock function.

■

Automatic daylight saving time change.

■

Setpoint limitation. Your installer has the possibility to modify

the lower and upper limit of the setpoints. Refer to “Setting

up codes in the installer menu” (code

6® 12

6® 13

) in the

installation manual.

EKRTW

Room thermostat

4PW44897-1

Operation manual

2. Buttons on front cover and LCD

Refer to ﬁgure 1 at the inside of the front cover.

Refer to ﬁgure 2 at the inside of the front cover.

Left and right buttons (

and

). Used to select

modes.

Up and down buttons (

). Used to change

values.

OK - Schedule timer button (

Used to:

- conﬁrm setpoints or save selections

- enable/disable locked schedule timer

LCD

Cooling/heating mode selection

Comfort function mode

Schedule timer function mode

Reduced function mode

OFF function mode (with integrated frost protection)

Holiday function mode

Schedule timer setting menu

Date and clock setting menu

Manual override of scheduled mode

Day of the week

Error occurred: intervention needed

Active user or installation menu or error occurred. Refer

to "Troubleshooting" on page 15.

Selected program (schedule timer) or code

Room temperature or setpoint (when ﬂashing)

Thermostat ON (heating or cooling requested)

AM - PM indication

Room temperature symbol

Degrees type indication (°C or °F)

Operation manual

EKRTW

Room thermostat

4PW44897-1

When manually overriding a schedule or when consulting

the active scheduled setpoints by pressing

the current and next setpoint together with the starting

hour of the next action are displayed.

•

is shown in case the next action setpoint goes up.

•

is shown in case the next action setpoint goes down.

•

is shown in case the setpoints are equal.

Actual time

“Low batteries” indication

Key lock function

Next scheduled temperature setpoint

EKRTW

Room thermostat

4PW44897-1

Operation manual

3. Getting started

3.1. Setting the clock and date

After installation you ﬁrst need to set the clock before you can

actually use the thermostat.

Activate the advanced mode by pressing

during 5

seconds in OFF mode (

Refer also to "Description of the function modes and menus"

on page 6.

Navigate to the date and clock setting menu (

) by pressing

and then press

Set the hour, minutes, day of the week (

= Monday,

= Tuesday,...), day, month and year by pressing

and conﬁrm each time by pressing

The value that you modify ﬂashes.

3.2. Setting the desired mode: heating or cooling

Press

to go to comfort mode (

Press

during 5 seconds to go to the heating/cooling

selection mode.

Press

to switch to the desired mode.

is ﬂashing.

Press

to save your selection.

The thermostat returns to the schedule timer mode (

3.3. Setting the desired setpoint

Navigate to the comfort mode

by pressing

set the comfort setpoint.

Refer also to "Description of the function modes and menus"

on page 6.

Raise or drop the setpoint by pressing

The current setpoint ﬂashes.

Press

to save your settings.

The room temperature is displayed (

NOTE

This is only possible if cooling mode is available.

Operation manual

EKRTW

Room thermostat

4PW44897-1

Description of the function modes and menus

4.1. Modes in the standard menu

B C D

Press

to switch to the desired mode.

The

cursor will move.

4.2. Modes and menus in the advanced menu

To activate advanced modes, navigate to OFF mode (

) and

press

during 5 seconds.

Icon Description

Comfort

mode. Use this mode for a ﬁxed temperature

on comfort level (comfort setpoint default on 21.0°C in

heating mode, 24.0°C in cooling mode).

Schedule timer

mode. Use this mode to let your

installation be controlled by the schedule timer. The

actions programmed in the schedule timer will be

executed automatically according to the actual time.

This function mode uses the scheduled temperature

setpoint.

The functionality of the locked/unlocked schedule timer

mode is explained in "Manually overriding a schedule"

on page 8.

It is advised to lock the schedule timer mode by pressing

. A line will appear underneath the icon (

Reduced

mode. Use this mode for a ﬁxed temperature

on reduced level (reduced setpoint default on 17.0°C in

heating mode, 28°C in cooling mode).

OFF

mode. Use this mode to switch off your installation.

Integrated frost protection remains activated (frost

protection default on 4.0°C).

Icon Description

Holiday

mode. Use this mode to set a ﬁxed temperature

during a long absence. To exit the holiday mode, set the

duration to "

". Refer to "Using the holiday mode" on

page 11.

Schedule timer setting

menu. Use this menu to choose

a factory-deﬁned schedule or create a custom one.

Date and clock setting

menu. Use this menu to set

date and time.

EKRTW

Room thermostat

4PW44897-1

Operation manual

5. Using the thermostat

5.1. Using the key lock function

Activate or deactivate the key lock function by pressing

and

at the same time.

5.2. Activating the schedule timer

For full comfort with limitation of energy consumption you can

pick an ideal schedule for each day. This makes sure the

temperature is in the comfort mode when you are at home and

that the temperature is automatically reduced at times you are

sleeping, at work and so on.

If needed, activate the advanced mode by pressing

during 5 seconds in OFF mode (

Navigate to the Schedule timer setting menu (

) by

pressing

Select the desired schedule by pressing

When pressing

the next schedule is shown. When

pressing

the previous schedule is shown.

The possible schedules are: 2 user-deﬁned (

◊1

◊2

) and 5

factory-deﬁned (

π1

π5

The factory-deﬁned schedules are described in "APPENDIX:

factory-deﬁned programs" on page 17. For the user-deﬁned

schedules, refer to "Setting up a user-deﬁned schedule" on

page 9.

Activate the selected schedule by pressing

Press

to exit the schedule.

Press

and

to consult the programmed actions,

press

and

to consult the other days (if already

programmed).

5Navigate to the schedule timer function mode (B) by

pressing <.

6Optionally, press =to lock the schedule timer mode (S).

NOTE For your optimum comfort, the schedule timer can

be set to start up in advance (120 minutes, code

2® 02, for 4.0°C setpoint difference), trying to reach

the programmed setpoint at the programmed time.

This control can be enabled or disabled by means of

code 2® 01 in the user menu. Refer to "Setting up

codes in the user menu" on page 12.

Operation manual

EKRTW

Room thermostat

4PW44897-1

5.3. Manually overriding a schedule

There are 2 ways of overriding a schedule:

■A temporary override in locked schedule timer mode (SS

SS)

Temporarily choose the comfort or reduced setpoint by

pressing 1 button only: <or >. The cursor “Y” will

move.

• comfort setpoint: q and h are displayed.

• reduced setpoint: w and h are displayed.

■A temporary override of the setpoint in schedule timer

mode

Press +or -to modify the setpoint in steps of 0.5°C.

Save a new, manual setpoint by pressing =or by waiting 5

seconds.

h is displayed.

Locking and unlocking the schedule timer mode is performed by

pressing =. The locked schedule timer mode displays as S.

The unlocked schedule timer mode displays as B.

NOTE By default the manual override is active until the next

scheduled action. You can change this behavior by

means of user code 2® 03: the manual override will

then only be active for 1 hour. Refer to "Setting up

codes in the user menu" on page 12.

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