• No results found

To connect the refrigerant piping to the indoor unit

In document Installer reference guide (сторінка 36-42)

7.2 Connecting the refrigerant piping

7.2.6 To connect the refrigerant piping to the indoor unit


The refrigerant inside this unit is mildly flammable.

Pipe length. Keep refrigerant piping as short as possible.

1 Connect refrigerant piping to the unit using flare connections.

2 Insulate the refrigerant piping, interconnection cable and drain hose on the indoor unit as follows:


ab f

d g e

a Gas pipe b Gas pipe insulation c Interconnection cable d Liquid pipe e Liquid pipe insulation

f Finishing tape g Drain hose


Make sure to insulate all refrigerant piping. Any exposed piping might cause condensation.

8 | Electrical installation


If the power supply has a missing or wrong N-phase, equipment might break down.

Establish proper earthing. Do NOT earth the unit to a utility pipe, surge absorber, or telephone earth. Incomplete earthing may cause electrical shock.

Install the required fuses or circuit breakers.

Secure the electrical wiring with cable ties so that the cables do NOT come in contact with sharp edges or piping, particularly on the high-pressure side.

Do NOT use taped wires, stranded conductor wires, extension cords, or connections from a star system. They can cause overheating, electrical shock or fire.

Do NOT install a phase advancing capacitor, because this unit is equipped with an inverter. A phase advancing capacitor will reduce performance and may cause accidents.


ALWAYS use multicore cable for power supply cables.


Use an all-pole disconnection type breaker with at least 3 mm between the contact point gaps that provide full disconnection under overvoltage category III.


If the supply cord is damaged, it MUST be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.


Do NOT connect the power supply to the indoor unit. This could result in electrical shock or fire.


Do NOT use locally purchased electrical parts inside the product.

Do NOT branch the power supply for the drain pump, etc. from the terminal block. This could result in electrical shock or fire.


Keep the interconnection wiring away from copper pipes without thermal insulation as such pipes will be very hot.

8.1.2 Guidelines when connecting the electrical wiring Keep the following in mind:

If stranded conductor wires are used, install a round crimp-style terminal on the end of the wire. Place the round crimp-style terminal on the wire up to the covered part and fasten the terminal with the appropriate tool.

8 | Electrical installation

b Round crimp-style terminal

Use the following methods for installing wires:

Wire type Installation method

Single-core wire c b


a a



a Curled single-core wire b Screw

c Flat washer Stranded conductor wire

with round crimp-style terminal

c b a bc



a Terminal b Screw c Flat washer O Allowed X NOT allowed

The earth wire between the wire retainer and the terminal must be longer than the other wires.


8.1.3 Specifications of standard wiring components Component

Interconnection cable (indoor↔outdoor) 4-core cable 1.5 mm²~2.5 mm² and applicable for 220~240 V

H05RN-F (60245 IEC 57)

8.2 To connect the electrical wiring to the indoor unit

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 cable

1 After the drain piping, refrigerant piping and the electrical wiring are finished.

Wrap refrigerant pipes, interconnection cable and drain hose together using insulation tape. Overlap at least half the width of the tape with each turn.


e b c

f a

a Drain hose b Interconnection cable c Mounting plate (accessory) d Refrigerant piping

e Indoor unit fixing screw M4×12L (accessory) f Bottom frame

9.2 To pass the pipes through the wall hole

1 Shape the refrigerant pipes along the pipe path marking on the mounting plate.

a b

c c d e

a Drain hose

b Caulk this hole with putty or caulking material c Adhesive vinyl tape

d Insulation tape

e Mounting plate (accessory)


Do NOT bend refrigerant pipes.

Do NOT push the refrigerant pipes onto the bottom frame or the front grille.

9 | Finishing the indoor unit installation

2 Pass the drain hose and refrigerant pipes through the wall hole.

9.3 To fix the unit on the mounting plate

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

2 Press the bottom frame of the unit with both hands to set it on the bottom hooks of the mounting plate. Make sure that the wires do NOT get squeezed anywhere.

Note: Take care that the interconnection cable does NOT get caught in the indoor unit.

3 Press the bottom edge of the indoor unit with both hands until it is firmly caught by the mounting plate hooks.

4 Secure the indoor unit to the mounting plate using 2 indoor unit fixing screws M4×12L (accessory).

9.4 To close the indoor unit

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.

11.2 Checklist before commissioning

After the installation of the unit, first check the items listed below. Once all checks are fulfilled, the unit must be closed. Power-up the unit after it is closed.

You read the complete installation instructions, as described in the installer reference guide.

The indoor units are properly mounted.

The outdoor unit is properly mounted.

Air inlet/outlet

Check that the air inlet and outlet of the unit is NOT obstructed by paper sheets, cardboard, or any other material.

There are NO missing phases or reversed phases.

The refrigerant pipes (gas and liquid) are thermally insulated.


Make sure drainage flows smoothly.

Possible consequence: Condensate water might drip.

The system is properly earthed and the earth terminals are tightened.

The fuses or locally installed protection devices are installed according to this document, and have NOT been bypassed.

The power supply voltage matches the voltage on the identification label of the unit.

The specified wires are used for the interconnection cable.

The indoor unit receives the signals of the user interface.

There are NO loose connections or damaged electrical components in the switch box.

The insulation resistance of the compressor is OK.

There are NO damaged components or squeezed pipes on the inside of the indoor and outdoor units.

There are NO refrigerant leaks.

The correct pipe size is installed and the pipes are properly insulated.

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 36-42)