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To connect the electrical wiring to the indoor unit

In document Installer reference guide (сторінка 39-56)

Electrical work should be carried out in accordance with the installation manual and the national electrical wiring rules or code of practice.

1 Set the indoor unit on the mounting plate hooks. Use the " " marks as a guide.


8 | Electrical installation

c Interconnection cable d Wire guide


Support the unit using a piece of packing material.

2 Open the front panel, and then the service cover. Refer to "6.2 Opening the indoor unit" [4 24].

3 Pass the interconnection cable from the outdoor unit through the feed- through wall hole, through the back of the indoor unit and through the front side.

Note: In case the interconnection cable was stripped in advance, cover the ends with insulating tape.

4 Bend the end of the cable up.


Be sure to keep the power line and transmission line apart from each other.

Transmission wiring and power supply wiring may cross, but may NOT run parallel.

In order to avoid any electrical interference the distance between both wirings should ALWAYS be at least 50 mm.


Provide adequate measures to prevent that the unit can be used as a shelter by small animals. Small animals that make contact with electrical parts can cause malfunctions, smoke or fire.

a b c

a Terminal block

b Electrical component block c Cable clamp

5 Strip the wire ends approximately 15 mm.

6 Match wire colours with terminal numbers on the indoor unit terminal blocks and firmly screw the wires to the corresponding terminals.

7 Connect the earth wire to the corresponding terminal.

8 Firmly fix the wires with the terminal screws.

9 Pull the wires to make sure that they are securely attached, then retain the wires with the wire retainer.

8 | Electrical installation

9 | Finishing the indoor unit installation

9 Finishing the indoor unit installation

9.1 To insulate the drain piping, refrigerant piping and interconnection

9.4.1 To re-install the front grille

1 Install the front grille and firmly engage the 3 upper hooks.

2 Install 2 screws (class 15~42) or 3 screws (class 50~71) back on the front grille.

3 For class 50~71 re-install the lower flap (horizontal blade). Connect the 2 centre connection points. Hook the right side of the blade to the shaft. Hook the blade on its left side.

4 Install the air filter, mount the front panel and close it.

9.4.2 To close the service cover

1 Place the service cover to its original place on the unit.

2 Install 1 screw back on the service cover.


When closing the service cover, make sure that the tightening torque does NOT exceed 1.4 (±0.2) N•m.

9.4.3 To re-install the front panel

1 Attach the front panel. Align the shafts with the slots and push them all the way in.

9 | Finishing the indoor unit installation

10 | Configuration

10 Configuration

10.1 To set a different address

In case 2 indoor units are installed in 1 room, different addresses for 2 user interfaces can be set.

1 Remove the cover and the batteries from the user interface.

2 Cut the address jumper J4.


a Address jumper J4


Be careful NOT to damage any of the surrounding parts when cutting the address jumper.

3 Turn the power supply on.

4 Press and simultaneously.

5 Press , select and press .

Result: The operation lamp will start to blink.




a Operation lamp b Indoor unit ON/OFF switch

6 Press the indoor unit ON/OFF switch while the operation lamp is blinking.

Address jumper Address

Factory setting 1

After cutting with nippers 2

10 | Configuration


If the setting could NOT be completed while the operation lamp was blinking, repeat the setting process from the beginning.

7 When the setting is complete, keep pressed for at least 5 seconds.

Result: The user interface will return to the previous screen.

11 | Commissioning

11 Commissioning

11.1 Overview: Commissioning

Typical workflow

Commissioning typically consists of the following stages:

1 Checking the "Checklist before commissioning".

2 Performing a test run for the system.

11 | Commissioning

11.3 To perform a test run

Prerequisite: Power supply MUST be in the specified range.

Prerequisite: Test run may be performed in cooling or heating mode.

Prerequisite: Test run should be performed in accordance with the operation manual of the indoor unit to make sure that all functions and parts are working properly.

1 In cooling mode, select the lowest programmable temperature. In heating mode, select the highest programmable temperature. Test run can be disabled if necessary.

2 When the test run is finished, set the temperature to a normal level. In cooling mode: 26~28°C, in heating mode: 20~24°C.

3 The system stops operating 3 minutes after the unit is turned OFF.

11.3.1 To perform a test run using the user interface 1 Press to switch the system on.

2 Press and simultaneously.

3 Press , select and press .

Result: Test run operation will stop automatically after about 30 minutes.

4 To stop operation sooner, press .

12 | Hand-over to the user

12 Hand-over to the user

Once the test run is finished and the unit operates properly, please make sure the following is clear for the user:

Make sure that the user has the printed documentation and ask him/her to keep it for future reference. Inform the user that he can find the complete documentation at the URL mentioned earlier in this manual.

Explain the user how to properly operate the system and what to do in case of problems.

Show the user what to do for the maintenance of the unit.

13 | Disposal

13 Disposal


Do NOT try to dismantle the system yourself: dismantling of the system, treatment of the refrigerant, oil and other parts MUST comply with applicable legislation. Units MUST be treated at a specialised treatment facility for reuse, recycling and recovery.

14 | Technical data

14 Technical data

A subset of the latest technical data is available on the regional Daikin website (publicly accessible).

The full set of latest technical data is available on the Daikin Business Portal (authentication required).

14.1 Wiring diagram

14.1.1 Unified wiring diagram legend

For applied parts and numbering, refer to the wiring diagram on the unit. Part numbering is by Arabic numbers in ascending order for each part and is represented in the overview below by "*" in the part code.

Symbol Meaning Symbol Meaning

Circuit breaker Protective earth

Connection Protective earth (screw)

, Connector A Rectifier

Earth Relay connector

Field wiring Short-circuit connector

Fuse Terminal

INDOOR Indoor unit Terminal strip

OUTDOOR Outdoor unit Wire clamp

Residual current device

Symbol Colour Symbol Colour

BLK Black ORG Orange

BLU Blue PNK Pink

BRN Brown PRP, PPL Purple

GRN Green RED Red

GRY Grey WHT White

YLW Yellow

Symbol Meaning

A*P Printed circuit board

BS* Pushbutton ON/OFF, operation switch

14 | Technical data

Symbol Meaning

AC*, CN*, E*, HA*, HE*, HL*, HN*, HR*, MR*_A, MR*_B, S*, U, V, W, X*A, K*R_*, NE

Connection, connector

D*, V*D Diode

DB* Diode bridge

DS* DIP switch

E*H Heater

FU*, F*U, (for characteristics, refer to PCB inside your unit)


FG* Connector (frame ground)

H* Harness

H*P, LED*, V*L Pilot lamp, light emitting diode

HAP Light emitting diode (service monitor


HIGH VOLTAGE High voltage

IES Intelligent eye sensor

IPM* Intelligent power module

K*R, KCR, KFR, KHuR, K*M Magnetic relay

L Live

L* Coil

L*R Reactor

M* Stepper motor

M*C Compressor motor

M*F Fan motor

M*P Drain pump motor

M*S Swing motor

MR*, MRCW*, MRM*, MRN* Magnetic relay

N Neutral

n=*, N=* Number of passes through ferrite core

PAM Pulse-amplitude modulation

PCB* Printed circuit board

PM* Power module

PS Switching power supply

PTC* PTC thermistor

Q* Insulated gate bipolar transistor (IGBT )

Q*C Circuit breaker

Q*DI, KLM Earth leak circuit breaker

14 | Technical data

Symbol Meaning

Q*M Thermo switch

Q*R Residual current device

R* Resistor

R*T Thermistor

RC Receiver

S*C Limit switch

S*L Float switch

S*NG Refrigerant leak detector

S*NPH Pressure sensor (high)

S*NPL Pressure sensor (low)

S*PH, HPS* Pressure switch (high)

S*PL Pressure switch (low)

S*T Thermostat

S*RH Humidity sensor

S*W, SW* Operation switch

SA*, F1S Surge arrester

SR*, WLU Signal receiver

SS* Selector switch

SHEET METAL Terminal strip fixed plate

T*R Transformer

TC, TRC Transmitter

V*, R*V Varistor

V*R Diode bridge, Insulated-gate bipolar

transistor (IGBT) power module

WRC Wireless remote controller

X* Terminal

X*M Terminal strip (block)

Y*E Electronic expansion valve coil

Y*R, Y*S Reversing solenoid valve coil

Z*C Ferrite core

ZF, Z*F Noise filter

15 | Glossary

15 Glossary


Sales distributor for the product.

Authorised installer

Technical skilled person who is qualified to install the product.


Person who is owner of the product and/or operates the product.

Applicable legislation

All international, European, national and local directives, laws, regulations and/or codes that are relevant and applicable for a certain product or domain.

Service company

Qualified company which can perform or coordinate the required service to the product.

Installation manual

Instruction manual specified for a certain product or application, explaining how to install, configure and maintain it.

Operation manual

Instruction manual specified for a certain product or application, explaining how to operate it.

Maintenance instructions

Instruction manual specified for a certain product or application, which explains (if relevant) how to install, configure, operate and/or maintain the product or application.


Labels, manuals, information sheets and equipment that are delivered with the product and that need to be installed according to the instructions in the accompanying documentation.

Optional equipment

Equipment made or approved by Daikin that can be combined with the product according to the instructions in the accompanying documentation.

Field supply

Equipment NOT made by Daikin that can be combined with the product according to the instructions in the accompanying documentation.

In document Installer reference guide (сторінка 39-56)