Daikin EKRTW Bedienungsanleitung

INSTALLATION MANUAL

EKRTW

Room thermostat

12534

±1.5 m

1.5 m

±1.5 m

>0.2 m

EKRTW

Room thermostat

4PW44896-1C

Installation manual

Contents

1. Introduction ............................................................................ 1

2. Installation of EKRTW ............................................................ 2

3. Setting up codes in the installer menu ................................... 5

4. Technical characteristics ...................................................... 10

1. Introduction

The room thermostat EKRTW can be used to control ﬂoor

heating-only applications and ﬂoor heating/cooling applications.

It is typically connected to the indoor unit. Refer to the "Typical

application examples" in the Installation manual of the indoor

unit.

■

In case of ﬂoor heating-only applications the room

thermostat can also be connected to the individual motorized

valve of the ﬂoor heating loop.

■

If a ﬂoor heating-only application is used in combination with

fan coil units each fan coil unit should have its dedicated fan

coil thermostat.

EKRTW Room thermostat Installation manual

Read this manual attentively before starting up the unit.

Do not throw it away. Keep it in your ﬁles for future

reference.

Improper installation or attachment of equipment or

accessories could result in electric shock, short-circuit,

leaks, ﬁre or other damage to the equipment. Be sure

only to use accessories made by Daikin which are

speciﬁcally designed for the use with the equipment and

have them installed by a professional.

If unsure of installation procedures or use, always

contact your dealer for advice and information.

Installation manual

EKRTW

Room thermostat

4PW44896-1C

2. Installation of EKRTW

The EKRTW thermostat is wall-mounted, with supplied screws

and plugs. Refer to ﬁgure 1.

Cabling towards the indoor system (ﬁeld supply) should be

foreseen in advance taking the suggestions for an ideal

installation location into account. Refer to ﬁgure 2.

At the left of the thermostat, gently push the lid.

Remove the front cover by pulling it towards you.

Unscrew the screw of the cable holder in the bottom left

corner of the back part of the thermostat and remove the

transparent cable protection.

Remove the battery insulator.

Drill holes in the wall taking the dimensions of the thermostat

into account and insert the supplied plugs in the holes.

Refer to ﬁgure 3 (unit of measurement: mm).

Before obtaining access to terminals, all power

supply circuits must be interrupted.

EKRTW

Room thermostat

4PW44896-1C

Installation manual

Pass the indoor unit or motorized valve wiring through the

back of the thermostat.

According your application, perform the wiring.

When connected to the indoor unit, wire the indoor unit and

the thermostat as shown below.

For heating-only applications, wire 17-C or 2-C is not to be

installed.

Use wire size 0.75~1.50 mm

EKHB(H/X)007AC*** EKHB(H/X)008

EKHB(H/X)016

H Heating demand

C Cooling demand

23 17 15 13

HCLN

com

EKRTW

X1M

1234

HCLN

com

EKRTW

X1M

X2M

Installation manual

EKRTW

Room thermostat

4PW44896-1C

When connected to the motorized valve, wire the motorized

valve and the thermostat as shown below (for heating-only

applications).

The output relays (H and C are voltage-free contacts) can

handle a maximum load of 5 A - 230 VAC.

Fasten the thermostat with the supplied screws.

Put the transparent cable protection back into place and ﬁx

the cable protection with the screw.

Close the thermostat cover.

Remove the protective ﬁlm from the LCD.

Be careful not to pinch the wiring when fastening.

1N~50 Hz 230 VAC

com

EKRTW

X1M

EKRTW

Room thermostat

4PW44896-1C

Installation manual

3. Setting up codes in the installer menu

You can set up codes, starting from the time and date menu (in

advanced mode).

Activate the advanced mode by pressing

during 5

seconds in OFF mode (

Navigate to the date and clock setting menu (

) by pressing

Press

and keep it pressed while now pressing

during 10 seconds.

is displayed next to

4®

Press

to consult the current settings of the

codes.

To modify codes, press

The value is ﬂashing when being modiﬁed.

Press

to increase or decrease the code value by

1 step.

To put a code back to its default value, press

and

the same time.

Press

to save your selection.

You can exit this code menu by going to the "

" code and

pressing

NOTE

As a consequence of a customized conﬁguration, it

is not abnormal that some codes are no longer

accessible.

Installation manual

EKRTW

Room thermostat

4PW44896-1C

3.1. Set-up for heating/cooling applications

For heating/cooling applications, set the following codes:

3.2. Overview of all codes

Following codes can be changed in the installer menu:

1st

code 2nd

code Description Required

setting

5® 01

Cooling mode present?

ÚêÒ

1st

code 2nd

code Description Default Range Step

Readout codes

4® 01

Calibration of

internal sensor.

Actual

temperature +

offset are

displayed. The

symbol

appears when

the offset

deviates from 0.

Offset = 0 Offset:

–5°C~5°C 0.1°C

Installation codes

5® 01

Cooling mode

present?

≈œ ÚêÒ

≈œ

—

EKRTW

Room thermostat

4PW44896-1C

Installation manual

Temperature control codes

Daikin advizes not to change below temperature control

parameters.They are set for an optimal use of the ﬂoor cooling/

heating application.

6® 02

Use

proportional

band control?

ÚêÒ ÚêÒ

(proportional

band)

≈œ

(hysteresis)

—

Hysteresis

value

00.5 00.5

02.0

0.1°C

Duration

proportional

band (heating).

020 010

060

1 min.

Minimum "on"

time (heat

demand).

007 002

6® 04

/2 1 min.

Minimum delay

between 2

heating cycles.

003 001

6® 04

/2 1 min.

Duration

proportional

band (cooling).

020 010

060

1 min.

Minimum "on"

time (cool

demand).

007 002

6® 07

/2 1 min.

Minimum delay

between 2

cooling cycles.

003 001

6® 07

/2 1 min.

Value of

proportional

band.

02.0 01.0

04.0

0.1°C

Compensating

value.

00.0 00.0

08.0

0.1°C

1st

code 2nd

code Description Default Range Step

Installation manual

EKRTW

Room thermostat

4PW44896-1C

6® 12

Upper setpoint

limitation.

037 22.0

37.0

1°C

Lower setpoint

limitation.

004 04.0

20.0

1°C

Schedule timer codes

8® 01

Enable cooling/

heating link for

the user-

deﬁned

schedules

◊1

and

◊2

When enabled

and a user-

deﬁned

schedule is

selected in the

schedule timer

setting menu:

in heating

mode, schedule

◊1

will be active;

in cooling

mode, schedule

◊2

will be active.

≈œ ÚêÒ

≈œ

—

1st

code 2nd

code Description Default Range Step

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