Daikin EKRTWA Manual de usuario

INSTALLATION MANUAL

EKRTWA

Room thermostat

60 mm/2.36 inch

125 mm/4.92 inch

34 mm/1.34 inch

87 mm/3.43 inch

±1.5 m

1.5 m

±60 inch

60 inch

±1.5 m

±60 inch

>8 inch

>0.2 m

>8 inch

>0.2 m

EKRTWA

Room thermostat

4PW56101-1

Installation manual

The English text is the original instruction. Other languages are

translations of the original instructions.

Contents

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

2. Installation of the EKRTWA....................................................2

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

4. Technical characteristics ...................................................... 11

1. Introduction

The room thermostat EKRTWA can be used to control the Daikin

system (radiator heating and ﬂoor heating/cooling applications).

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

application examples" in the Installation manual of the Daikin

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.

EKRTWA 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

EKRTWA

Room thermostat

4PW56101-1

■

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.

2. Installation of the EKRTWA

The EKRTWA thermostat is wall-mounted, with supplied screws

and plugs. Refer to ﬁgure 1.

Cabling towards the Daikin 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.

Before obtaining access to terminals, all power

supply circuits must be interrupted.

EKRTWA

Room thermostat

4PW56101-1

Installation manual

Pass the unit or motorized valve wiring through the back of

the thermostat.

According your application, perform the wiring.

When connected to the unit, refer to the wiring diagram of

the unit.

For heating-only applications, wire connection to C is not to

be installed.

Use wire size 0.75~1.50 mm

/AWG18~16.

All ﬁeld wiring and components must be installed by

a licensed electrician and must comply with relevant

European and national regulations.

Example unit

H Heating demand

C Cooling demand

HCLN

C Hcom

X1M

Installation manual

EKRTWA

Room thermostat

4PW56101-1

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. Refer

to "Technical characteristics" on page 11 for maximum load.

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.

com

X1M

Power supply

EKRTWA

Room thermostat

4PW56101-1

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

EKRTWA

Room thermostat

4PW56101-1

3.1. Set-up for Fahrenheit degree type

Refer to the operation manual how to change parameter in user

menu.

3.2. Set-up for heating/cooling applications

For heating/cooling applications, set the following codes:

3.3. Set-up for radiator applications

Before operation, change the following temperature control

parameter to the required setting for radiator applications.

1st

code 2nd

code Description Range

1® 01

Degrees type. °C/°F

1st

code 2nd

code Description Required

setting

5® 01

Cooling mode present?

ÚêÒ

1st

code 2nd

code Description Required

setting

6® 02

Use proportional band control?

(=hysteresis)

EKRTWA

Room thermostat

4PW56101-1

Installation manual

3.4. Overview of all codes

Following codes can be changed in the installer menu:

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

Offset:

–9°F~9°F 0.2°F

Installation codes

5® 01

Cooling mode

present?

≈œ ÚêÒ

≈œ

—

Temperature control codes

Daikin advizes not to change below temperature control

parameters. They are set for an optimal use of the Daikin

system.

6® 02

Use

proportional

band control?

ÚêÒ ÚêÒ

(proportional

band)

≈œ

(hysteresis)

—

Hysteresis

value

00.5 00.5

02.0

0.1°C

00.9 00.9

03.6

0.1°F

Duration

proportional

band (heating).

020 010

060

1 min.

Minimum "on"

time (heat

demand).

009 002

6® 04

/2 1 min.

Installation manual

EKRTWA

Room thermostat

4PW56101-1

6® 06

Minimum delay

between 2

heating cycles.

005 001

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

03.6 01.8

07.2

0.1°F

Not used

parameter —— —

Upper setpoint

limitation.

37.0 22.0

37.0

0.5°C

99.0 72.0

99.0

0.5°F

Lower setpoint

limitation.

04.0 04.0

20.0

0.5°C

39.5 39.0

68.0

0.5°F

1st

code 2nd

code Description Default Range Step

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