Samsung MCU-R4NEK0N User manual

Air conditioner
Installation manual
HR Changer MCU-R4NEK0N
• Thank you for purchasing this Samsung air conditioner.
• Before operating this unit, please read this user manual carefully and retain it for future
reference.

2
English
Safety Information 3
Safety Information 3
Preparation 9
Preparing the installation 9
Accessories
Selecting the refrigerant pipe for installation
HR Changer, MCU, Indoor and outdoor unit compatible table
Installation 12
Space requirements 12
Installing the unit 14
Method and cautions on brazing the pipe
Refrigerant piping works 19
Method and cautions on refrigerant pipe insulation
Installing the circuit breaker and wires
Wiring works 23
Appendix 30
Commisioning 30
Contents

3
English
Safety Information
Safety Information
The safety information and precautions below must be kept for the safety of users and installers.
࢜
After installation and trial operation, explain to the customer how to use the airconditioner and give the installation
manual to the user.
࢜
The manufacturer is not responsible for accidents due to incorrect installation. Any claims caused by failing to keep
the safety precautions are installer’s responsibility. (The installer is responsible forthe service cost.)
WARNING
In case of not following the safety precautions, the service agent or the user may get
the risk of serious wound or death.
CAUTION
In case of not following the safety precautions, the service agent or the user may get
the risk of injury or loss of property.
FOR INSTALLATION
WARNING
Installation must be done by the installer or its service agent.
 ÃϑϩɇɇϩͱɵцɇЇαЇɇѣʪʒΧʪθϑͱɇцʀɇЇϑʪɇиɇϩʪθʪɇɇ˝ʪࡥʪʪʀϩθʀϑ˵ͱʀͱθѣθʪɇʒϑͱͱ࢏
Install the unit correctly according to the installation manual.

ʀͱθθʪʀϩϑϩɇɇϩͱɇцʀɇЇϑʪɇиɇϩʪθʪɇɇ˝ʪࡥʪʪʀϩθʀϑ˵ͱʀͱθѣθʪ࢏
When installing the unit in a small place, take measures in order to keep the refrigerant concentration
from exceeding allowable safety limits in the event of a refrigerant leak.
 kуʀʪϑϑЭʪθʪ˙θ˝ʪθɇϩʀͱʀʪϩθɇϩͱʀɇʪɇʒϩͱϑЇ˙˙ͱʀɇϩͱ࢏
If any gas or impurities except R-410A refrigerant get into the refrigerant pipe, serious problems may
occur and this may cause injury.
Ǯ˵ʪϑϩɇ˝ϩ˵ʪЇϩࡥͱцЇϑʪϩ˵ʪʀͱΧͱʪϩϑɇʒϩͱͱϑи˵ʀ˵ɇθʪϑΧʪʀѣʪʒ˙ͱθϩ˵ʪϑϩɇɇϩͱ࢏

Ƹϑ˝ϩ˵ʪЇʀʪθϩѣʪʒʀͱΧͱʪϩϑɇʒϩͱͱϑɇцʀɇЇϑʪɇЇϩ˙ɇࡥиɇϩʪθʪɇɇ˝ʪࡥʪʪʀϩθʀϑ˵ͱʀࡥɇʒɇѣθʪ࢏
(Never use the components and pipe for R-22 refrigerant)
Install the unit safely on a place that can support its weight.
 Ã˙ϩ˵ʪΧɇʀʪʀɇͱϩϑЇΧΧͱθϩϩϑиʪ˝˵ϩࡥϩ˵ʪЇϩɇц˙ɇʒͱиɇʒʀɇЇϑʪЇθц࢏
Before installing an air conditioner, please read this manual thoroughly to ensure that you know how to
ϑɇ˙ʪцɇʒʪ˙ѣʀʪϩцϑϩɇɇʪиɇΧΧɇʀʪ࢏
• DVM S air conditioner uses R-410A refrigerant.
- When using R-410A, moisture or foreign substances may affect the capacity and reliability of the
product.
Safety precautions must be taken when installing the refrigerant pipe.
-
The designing pressure of the system is 4.1MPa. Select appropriate material and thickness according to
the regulations.
 ࣛŵࣛߦߣߢϑɇαЇɇϑࣛɇіʪͱϩθͱΧʪͱ˙ϩиͱθʪ˙θ˝ʪθɇϩϑ࢏
đɇʪϑЇθʪϩͱʀ˵ɇθ˝ʪиϩ˵αЇʒΧ˵ɇϑʪи˵ʪѣ˝θʪ˙θ˝ʪθɇϩ࢏
If you charge gaseous refrigerant, it may affect the capacity and reliability of the product as a result of
change formation of the refrigerant.
• Connect the indoor units for R-410A refrigerant. Check whether the indoor units can be connected with
the product’s catalogue. (When incorrect indoor units are connected, they cannot operate normally.)

4
Safety Information
English
Safety Information
Safety Information
A˵ʪʀͱЇϩϩ˵ʪϑɇ˙ʪϩцΧθʪʀɇЇϩͱϑɵʪͱиɵʪ˙ͱθʪϑϩɇ˝ͱθѣу˝ϩ˵ʪЇϩ࢏
 
Before welding the unit, you must remove all the hazardous materials around the unit that may cause an
ʪуΧͱϑͱɇʒɇѣθʪ࢏
 Ǯ˵ʪθʪ˙θ˝ʪθɇϩϑϩ˵ʪΧθͱʒЇʀϩͱθϩ˵ʪΧΧʪɵʪ˙ͱθʪиʪʒ˝ϩ˵ʪЇϩࡥцͱЇЇϑϩθʪͱЭʪϩ˵ʪ
refrigerant.
- If you weld the unit when there is refrigerant inside, the increased pressure of refrigerant may
explode or break the leaking spot so that causes serious injuries.
 Ǯ˵ʪиʪʒ˝ϩ˵ʪЇϩࡥΧʪɇϑʪЇϑʪϩθͱ˝ʪ˝ɇϑϩͱΧθʪЭʪϩͱуʒʪ˙θͱ˝ʪʪθɇϩ˝ϩ˵ʪΧΧʪ
đɇʪϑЇθʪϩͱʀЇϩͱ˙˙ɇϩ˵ʪΧͱиʪθϑЇΧΧцɵʪ˙ͱθʪϑϩɇ˝ࡥѣу˝ࡥɇʒʀʪɇ˝ϩ˵ʪЇϩ࢏
When the electric wire is damaged, you must exchange it by the manufacturer or its service agent, or a
Χʪθϑͱи˵ͱ˵ɇϑϩ˵ʪʪαЇЭɇʪϩαЇɇѣʀɇϩͱ࢏
When turning on the power, make sure to connect the power supply to the circuit breakerdesignated for
indoor units. (ELCB, ELB, MCCB)
 Ã˙цͱЇʒͱͱϩϑϩɇϩ˵ʪʀθʀЇϩɵθʪɇʪθ˙ͱθ²ŵA˵ɇ˝ʪθ࣑køA9ࡥkø9ࡥđAA9࣒ࡥʪуʀʪϑϑЭʪʀЇθθʪϩͱθ˙ɇЇθʪ
ϩͱɵͱʀ˝ϩ˵ʪΧͱиʪθϑЇΧΧцɇцʀɇЇϑʪʪʪʀϩθʀϑ˵ͱʀࡥɇѣθʪ࢏
FOR INSTALLATION
WARNING
đɇʪϑЇθʪϩͱʀͱʪʀϩиθʪϑϩ˵ͱθͱЇ˝˵цɇʒѣуϩ˵ʪѣθцϑͱϩ˵ɇϩͱͱЇϩʪθΧθʪϑϑЇθʪͱ˙ϩ˵ʪиθʪϑиͱЇʒ
put on the terminal block.
 Ã˙ϩ˵ʪϩʪθɇϑͱͱϑʪࡥϩɇц˝ʪʪθɇϩʪ˵ʪɇϩɇʒʀɇЇϑʪɇѣθʪ࢏
Supplied power should be more or less than 2% of the rated power.
 Ã˙ϩ˵ʪΧͱиʪθϑϑЇΧΧʪʒЇʪЭʪцࡥɇ˙ʪϑΧɇͱ˙ϩ˵ʪϑϩͱθɇ˝ʪɵɇϩϩʪθцϑ˵ͱθϩʪϑ࢏Ã˙ϩ˵ʪϑЇΧΧʪʒΧͱиʪθϑ
more than 4 % of the rated power, the unit terminates and indicates errors to protect it.
Make sure the interior powersupply shouldn’t be over the maximum voltage orunderthe minimum
voltage.
 Įϩ˵ʪθиϑʪࡥϩʀͱЇʒθʪϑЇϩɇ˙Їʀϩͱͱ˙ϩ˵ʪЇϩʒЇʪϩͱʒɇɇ˝ʪʒʪʪʀϩθʀɇʀͱΧͱʪϩϑͱθ
decreased function of components.
Only use copperwire as the power cable and all wiring, components and materials should complywith the
applicable local and national codes.
Make sure that all wiring is properly installed.
 Įϩ˵ʪθиϑʪࡥϩ˵ʪЇϩʀɇɵʪ˵ʪɇϩʪʒɇʒʀɇЇϑʪɇѣθʪ࢏
ĘʪЭʪθЇϑʪϩ˵ʪΧΧʪɇʒѤɇθʪΧɇθϩϑ˙ͱθŵࣛߤߤθʪ˙θ˝ʪθɇϩ࢏
In case of a refrigerant gas leakage during installation, please ventilate the area.
 Ã˙θʪ˙θ˝ʪθɇϩ˝ɇϑʀͱɵʪϑиϩ˵Ѥɇɇɵʪɇϩʪθɇϑࡥϩͱуʀ˝ɇϑʪϑʀɇɵʪ˝ʪʪθɇϩʪʒ࢏
Ɵ˵ʪʪʪʀϩθʀиͱθЇϑϩɵʪʒͱʪɵцϑʪθЭʀʪɇ˝ʪϩͱθαЇɇѣʪʒΧʪθϑͱϑɇʀʀͱθʒ˝ϩͱɇϩͱɇиθ˝
regulations and use only rated cable.
 Ǥͱϩɇ˝ʪʒθͱΧࡥϑ˵ͱθϩɇ˝ʪͱ˙ΧͱиʪθϑЇΧΧцࡥΧθͱΧʪθʪʪʀϩθʀиͱθɇʒЇϑ˝ЇɇΧΧθͱЭʪʒиθʪϑʀɇ
ʀɇЇϑʪɇʪʪʀϩθʀϑ˵ͱʀͱθɇѣθʪ࢏

5
English
Safety Information
FOR INSTALLATION CAUTION
Make sure to earth.
 Uͱͱϩʀͱʪʀϩϩ˵ʪʪɇθϩ˵иθʪϩͱϩ˵ʪ˝ɇϑΧΧʪࡥ˝˵ϩ˝θͱʒͱθϩʪʪΧ˵ͱʪиθʪ࢏
 Ã˙ʪɇθϩ˵˝ϑʀͱΧʪϩʪࡥʪʪʀϩθʀϑ˵ͱʀͱθѣθʪɇцͱʀʀЇθ࢏
Make sure that the condensed water from the drain hose runs out properly based on this installation
manual and insulate the drain pipe so that frost does not generate.
 Ã˙ϩ˵ʪʒθɇ˝иͱθϑʒͱʪʀͱΧʪϩʪцࡥΧθͱΧʪθϩцʒɇɇ˝ʪɇцͱʀʀЇθʒЇʪϩͱɇʪɇɇ˝ʪ࢏
Install the powercable and communication cable of HR Changerat least1m away from the electric
appliances and at least 2m away from the lightning rod.
 ²ͱиʪЭʪθࡥцͱЇɇц˵ʪɇθɇͱϑʪߣʪϩʪθɇиɇц˙θͱϩ˵ʪЇϩʒʪΧʪʒ˝ͱϩ˵ʪʀͱʒϩͱͱ˙ϩ˵ʪʪʪʀϩθʀ
wave.
Install HR Changer away from lighting apparatus using the ballast.
 Ã˙цͱЇЇϑʪϩ˵ʪиθʪʪϑϑθʪͱϩʪʀͱϩθͱࡥϩɇцͱϩͱΧʪθɇϩʪͱθɇц࢏
Do not install the unit in following places.
The place packed with mineral oil and the place where there are lots of moisture, or arsenic acid:
The resin parts may burn and cause the fall of the components or a refrigerant leakage.
 Ɵ˵ʪΧɇʀʪи˵ʪθʪʀͱθθͱϑЭʪ˝ɇϑϑЇʀ˵ɇϑϑЇ˙ЇθͱЇϑɇʀʒ˝ɇϑ˝ʪʪθɇϩʪϑ˙θͱϩ˵ʪЭʪϩΧΧʪͱθɇθͱЇϩʪϩࡤ
The copper pipe or connection pipe may corrode and refrigerant may leak.
 Ɵ˵ʪΧɇʀʪи˵ʪθʪϩ˵ʪθʪϑɇɇʀ˵ʪϩ˵ɇϩ˝ʪʪθɇϩʪϑʪʪʀϩθͱɇ˝ʪϩʀиɇЭʪϑࡤ
The unit may not operate normally due to malfunction in the control system.
 Ɵ˵ʪΧɇʀʪи˵ʪθʪϩ˵ʪθʪϑɇΧͱϑϑɵϩцͱ˙ʀͱɵЇϑϩɵʪ˝ɇϑʪɇɇ˝ʪࡥɇʒи˵ʪθʪѤɇɇɵʪɇϩʪθɇϑ
ʪϩ˵ʪθͱθ˝ɇϑͱʪϑ˵ɇʒʪʒ࢏Ɵ˵ʪΧɇʀʪи˵ʪθʪɇʀɇθɵͱѣɵʪθͱθѤɇɇɵʪʒЇϑϩϑѤͱɇϩ˝
the air:
Ã˙ϩ˵ʪ˝ɇϑʪɇϑɇʒϑϩɇцϑɇθͱЇʒϩ˵ʪɇЭɇЭʪࡥϩɇцθʪϑЇϩɇѣθʪ࢏
 Ɵ˵ʪΧɇʀʪϑи˵ʪθʪ˵ɇЭʪɇΧͱϑϑɵϩцͱ˙ϩ˵ʪ²ŵA˵ɇ˝ʪθʀͱθθͱϑͱʪɇϑΧɇɇʒɇϑ˵ͱθʪ࢏
When there is a possibility that the place in which HR Changer is installed could be the shelterof small
animals, take proper measures to prevent this situation in advance.
 Ã˙ϑɇɇɇϑʀͱϩɇʀϩϩ˵ʪЇϩࡥϩ˵ϑɇцθʪϑЇϩɇ˙Їʀϩͱͱ˙ϩ˵ʪЇϩͱθʀɇЇϑʪɇѣθʪɇʒϑͱʪ࢏
Please remind users of cleaning the place around HR Changer.
࢜ цʀɇϑʀɇЇϑʪʒɵц˙ɇ˝ϩͱʪʪΧϩ˵ʪϑɇ˙ʪϩцΧθʪʀɇЇϩͱϑɇθʪϑϩɇʪθࣱϑθʪϑΧͱϑɵϩц࢏࣑Ɵ˵ʪϑϩɇʪθ
is responsible for the service cost.)

6
Safety Information
English
Safety Information
Safety Information
øʪϑθʪϑʪ˝ʪʪϩϑϑЇθɇϑʭʀЇθϩʭʪϩʪϑΧθʭʀɇЇϩͱϑʀࣛʒʪϑϑͱЇϑʒͱЭʪϩʲϩθʪʀͱϑʪθЭʭϑΧͱЇθ˝ɇθɇϩθɇ
ϑʭʀЇθϩʭʒʪϑЇϩϑɇϩʪЇθϑʪϩʒʪϑϑϩɇɇϩʪЇθϑ࢏
࢜ Χθʽϑ࢖ϑϩɇɇϩͱʪϩʪϑϩʪϑϩϑࡥʪуΧαЇʪіɇЇʀʪϩʀͱʪϩЇϩϑʪθʪʀɇϩϑʪЇθʪϩʒͱʪіࣛЇʪɇЇʪ
ʒ࢖ϑϩɇɇϩͱ࢏
࢜ øʪ˙ɇɵθʀɇϩ࢖ʪϑϩΧɇϑθʪϑΧͱϑɇɵʪʒʪϑʀʒʪϩϑʒЇϑɞЇʪϑϩɇɇϩͱʀͱθθʪʀϩʪ࢏ƟͱЇϩʪθʭʀɇɇϩͱ
ʀͱϑʭʀЇϩЭʪɞ࢖ͱɵϑʪθЭɇϩͱʒʪϑΧθʭʀɇЇϩͱϑʒʪϑʭʀЇθϩʭʪϑϩɞɇθʪϑΧͱϑɇɵϩʭʒʪ࢖ϑϩɇɇϩʪЇθ࢏
࣑ø࢖ϑϩɇɇϩʪЇθʪϑϩθʪϑΧͱϑɇɵʪʒЇʀͱЍϩʒЇϑʪθЭʀʪ࢏࣒
WARNING
kʀɇϑʒʪͱࣛθʪϑΧʪʀϩʒʪϑΧθʭʀɇЇϩͱϑʒʪϑʭʀЇθϩʭϑЇЭɇϩʪϑࡥ࢖ɇ˝ʪϩʒʪϑʪθЭʀʪͱЇ
࢖ЇϩϑɇϩʪЇθɇʒʪϑθϑαЇʪϑʒʪɵʪϑϑЇθʪ˝θɇЭʪͱЇͱθϩʪʪ࢏
CAUTION
kʀɇϑʒʪͱࣛθʪϑΧʪʀϩʒʪϑΧθʭʀɇЇϩͱϑʒʪϑʭʀЇθϩʭϑЇЭɇϩʪϑࡥ࢖ɇ˝ʪϩʒʪϑʪθЭʀʪͱЇ
࢖ЇϩϑɇϩʪЇθʀͱЇθʪϩʒʪϑθϑαЇʪϑʒʪɵʪϑϑЇθʪͱЇʒʪʒͱɇ˝ʪϑɇϩʭθʪϑ࢏
MONTAGE
AVERTISSEMENT
L'installation doit être faite parl'installateur ou son agent de service.
 Ƹʪϑϩɇɇϩͱ˙ɇϩʪΧɇθЇʪΧʪθϑͱʪͱαЇɇѣʭʪθϑαЇʪʒʪΧθͱЭͱαЇʪθЇʪ˙Їϩʪʒ࢖ʪɇЇࡥЇʪʒʭʀ˵ɇθ˝ʪ
ʭʪʀϩθαЇʪࡥЇʀʪʒʪʪϩɇϑʒʪϑЇϩʪ࢏
Installez l'appareil conformément au manuel d'installation.

 ƟͱЇϩʪϑϩɇɇϩͱʀͱθθʪʀϩʪΧʪЇϩʪϩθɇʪθЇʪ˙Їϩʪʒ࢖ʪɇЇࡥЇʪʒʭʀ˵ɇθ˝ʪʭʪʀϩθαЇʪͱЇЇʀʪʒʪ࢏
Lors de l'installation de l'appareil dans un espace restreint, prenez les mesures appropriées pouréviter que
ɇʀͱʀʪϩθɇϩͱʪѤЇʒʪ˙θ˝ͱθ˝ʽʪʪʒʭΧɇϑϑʪʪϑϩʪϑʒʪϑʭʀЇθϩʭɇЇϩͱθϑʭʪϑʪʀɇϑʒʪ˙ЇϩʪʒʪѤЇʒʪ࢏
 ƸʪʀͱʀʪϩθɇϩͱʪуʀʪϑϑЭʪʒʪѤЇʒʪ˙θ˝ͱθ˝ʽʪΧʪЇϩΧθͱЭͱαЇʪθЇʪϑЇ˙˙ͱʀɇϩͱ࢏
Ɗʒʪϑ˝ɇіͱЇʒʪϑΧЇθʪϩʭϑΧʭʽϩθʪϩɇЭʪʀʪѤЇʒʪ˙θ˝ͱθ˝ʽʪŵࣛߦߣߢʒɇϑʪϩЇцɇЇθʭ˙θ˝ʭθɇϩࡥʒʪϑ
Χθͱɵʽʪϑ˝θɇЭʪϑΧʪЇЭʪϩϑЇθЭʪθʪϩΧθͱЭͱαЇʪθʒʪϑɵʪϑϑЇθʪϑ࢏
ťͱЇθ࢖ϑϩɇɇϩͱʒʪ࢖ɇΧΧɇθʪࡥЇϩϑʪіЇαЇʪʪϩʪϑʀͱΧͱϑɇϩϑʪϩʪϑͱЇϩϑαЇͱϩʭϩʭϑΧʭʀѣʭϑΧͱЇθ࢖ϑϩɇɇϩͱ࢏
 ø࢖ЇϩϑɇϩͱʒʪʀͱΧͱϑɇϩϑʪϩʒ࢖ͱЇϩϑͱʀʪθϩѣʭϑΧʪЇϩʪϩθɇʪθɇʀ˵Їϩʪʒʪ࢖ɇΧΧɇθʪࡥʒʪϑ˙Їϩʪϑʒ࢖ʪɇЇࡥЇʀ˵ͱʀ
ʭʪʀϩθαЇʪͱЇЇʀʪʒʪ࢏࣑Ę࢖ЇϩϑʪіɇɇϑʒʪϑʀͱΧͱϑɇϩϑʪϩʒʪϑϩЇцɇЇуʀͱʅЇϑΧͱЇθʪѤЇʒʪ˙θ˝ͱθ˝ʽʪŵࣛߤߤ࣒
Installez l'appareil en toute sécurité à un emplacement qui peut supporterson poids.

Ɗ࢖ʪΧɇʀʪʪϩΧθʭЭЇʪΧʪЇϩΧɇϑϑЇΧΧͱθϩʪθʪΧͱʒϑʒʪ࢖ɇΧΧɇθʪࡥʀʪЇࣛʀΧʪЇϩϩͱɵʪθʪϩΧθͱЭͱαЇʪθʒʪϑɵʪϑϑЇθʪϑ࢏
Эɇϩʒ࢖ϑϩɇʪθЇʀɇϩϑʪЇθࡥЭʪЇʪіθʪɇϩϩʪϩЭʪʪϩʀʪɇЇʪΧͱЇθЭͱЇϑɇϑϑЇθʪθαЇʪЭͱЇϑϑɇЭʪі
ʀͱʪϩϑϩɇʪθʪ˙ѣʀɇʀʪʪϩʪϩʪϩͱЇϩʪϑʭʀЇθϩʭЇͱЇЭʪɇΧΧɇθʪ࢏
࡛ øʪʀɇϩϑʪЇθUǤđƊЇϩϑʪʒЇѤЇʒʪ˙θ˝ͱθ˝ʽʪŵࣛߦߣߢ࢏
 ࣛøͱθϑʒʪ࢖Їϩϑɇϩͱʒʪŵࣛߦߣߢࡥ࢖˵ЇʒϩʭͱЇʪϑϑЇɵϑϩɇʀʪϑʭϩθɇ˝ʽθʪϑθϑαЇʪϩʒ࢖ɇ˙˙ʪʀϩʪθʪϑ
ʀɇΧɇʀϩʭϑʪϩɇѣɇɵϩʭʒЇΧθͱʒЇϩ࢏UʪϑΧθʭʀɇЇϩͱϑʒʪϑʭʀЇθϩʭʒͱЭʪϩʲϩθʪθʪϑΧʪʀϩʭʪϑͱθϑʒʪ
࢖ϑϩɇɇϩͱʒЇʀͱʒЇϩʒʪѤЇʒʪ˙θ˝ͱθ˝ʽʪ࢏
 ࣛøɇΧθʪϑϑͱʒʪʀͱʀʪΧϩͱʒЇϑцϑϩʽʪʪϑϩʒʪߦࡥߣđťɇ࢏ƊʭʪʀϩͱʪіʪϑɇϩʭθɇЇуʪϩʪϑʭΧɇϑϑʪЇθϑ
ʀͱ˙ͱθʭʪϩɇЇуθʭ˝ʪʪϩɇϩͱϑʪЭ˝ЇʪЇθ࢏
 ࣛøʪŵࣛߦߣߢʪϑϩЇαЇɇϑࣛɇіʭͱϩθͱΧʪʒʪʒʪЇуѤЇʒʪϑ˙θ˝ͱθ˝ʽʪϑ࢏
ϑϑЇθʪіࣛЭͱЇϑʒʪʀ˵ɇθ˝ʪθʪѤЇʒʪ˙θ˝ͱθ˝ʽʪʪΧ˵ɇϑʪαЇʒʪ࢏
ƊЭͱЇϑʀ˵ɇθ˝ʪіЇθʭ˙θ˝ʭθɇϩ˝ɇіʪЇуࡥʀʪɇθϑαЇʪʒ࢖ɇ˙˙ʪʀϩʪθɇʀɇΧɇʀϩʭʪϩɇѣɇɵϩʭʒЇΧθͱʒЇϩϑЇϩʪɞ
Їʀ˵ɇ˝ʪʪϩʒɇϑɇ˙ͱθɇϩͱʒЇѤЇʒʪ˙θ˝ͱθ˝ʽʪ࢏
࡛ AͱʪʀϩʪθʒʪϑЇϩʭϑϩʭθʪЇθʪϑɇʒɇΧϩʭʪϑɇЇѤЇʒʪ˙θ˝ͱθ˝ʽʪŵࣛߦߣߢ࢏ǤʭθѣʪіϑʪϑЇϩʭϑϩʭθʪЇθʪϑ
ΧʪЇЭʪϩʲϩθʪθɇʀʀͱθʒʭʪϑɇЇΧθͱʒЇϩ࢏࣑ƊʒʪϑЇϩʭϑϩʭθʪЇθʪϑʀͱΧɇϩɵʪϑϑͱϩθɇʀʀͱθʒʭʪϑࡥʪʪϑʪ
pourront pas fonctionner normalement.)

7
English
Safety Information
AͱϑЇϩʪіʪϑΧθʭʀɇЇϩͱϑʒʪϑʭʀЇθϩʭʀࣛʒʪϑϑͱЇϑɇЭɇϩʒ࢖ϑϩɇʪθʪϩʒʪѣуʪθ࢖ɇΧΧɇθʪ࢏
 
ЭɇϩʒʪϑͱЇʒʪθ࢖ɇΧΧɇθʪࡥЭͱЇϑʒʪЭʪіθʪϩθʪθϩͱЇϑʪϑɇϩʭθɇЇуʒɇ˝ʪθʪЇуαЇϑʪϩθͱЇЭʪϩɇЇϩͱЇθࡥʀɇθʀʪЇуࣛʀ
ΧͱЇθθɇʪϩΧθͱЭͱαЇʪθЇʪʪуΧͱϑͱʪϩЇʀʪʒʪ࢏
 ƊʒЇѤЇʒʪ˙θ˝ͱθ˝ʽʪϑʪϩθͱЇЭʪʒɇϑ࢖ɇΧΧɇθʪͱЇʒɇϑʪϑϩЇцɇЇуɇЭɇϩʪϑͱЇʒɇ˝ʪࡥЭͱЇϑʒʪЭʪі
θʪϩθʪθʪθʭ˙θ˝ʭθɇϩɇЭɇϩϩͱЇϩʪͱΧʭθɇϩͱ࢏
ࣛƊЭͱЇϑϑͱЇʒʪі࢖ɇΧΧɇθʪɇͱθϑαЇʪʒЇѤЇʒʪ˙θ˝ͱθ˝ʽʪϑʪϩθͱЇЭʪɞ࢖ϩʭθʪЇθࡥɇΧθʪϑϑͱɇʀʀθЇʪʒЇ
θʭ˙θ˝ʭθɇϩΧͱЇθθɇϩΧθͱЭͱαЇʪθЇʪʪуΧͱϑͱʪϩʪϩθɇʪθʒʪϑɵʪϑϑЇθʪϑ˝θɇЭʪϑ࢏
 øͱθϑʒЇϑͱЇʒɇ˝ʪʒʪ࢖ɇΧΧɇθʪࡥЭʪЇʪіЇϩϑʪθʒʪ࢖ɇіͱϩʪ˝ɇіʪЇуΧͱЇθʪΧʲʀ˵ʪθɇ˝ʭʭθɇϩͱʒ࢖ͱуцʒʪ
dans le tuyau.
ϑϑЇθʪіࣛЭͱЇϑʒʪʀͱЇΧʪθϩͱЇϩʪϑʪϑɇʪϩɇϩͱϑʭʪʀϩθαЇʪϑɇЭɇϩ࢖ϑϩɇɇϩͱࡥɇѣуɇϩͱʪϩʪ
nettoyage de l'appareil.
kʀɇϑʒʪʒʭϩʭθͱθɇϩͱʒ࢖ЇѣʭʪʀϩθαЇʪࡥЭͱЇϑʒʪЭʪі˙ɇθʪΧθͱʀʭʒʪθɞϑͱθʪΧɇʀʪʪϩΧɇθʪ˙ɇɵθʀɇϩ
ͱЇϑͱɇ˝ʪϩʒʪϑʪθЭʀʪࡥͱЇЇʪΧʪθϑͱʪɇцɇϩʪϑαЇɇѣʀɇϩͱϑʭαЇЭɇʪϩʪϑ࢏
Lorsque vous mettez l'appareil sous tension, veillez à effectuer le raccordement à un disjoncteurconçu
pour les unités intérieures. (ELCB, ELB, MCCB)
 ƊЭͱЇϑ࢖ϑϩɇʪіΧɇϑʒʪʒϑͱʀϩʪЇθΧͱЇθɇđAƸ࣑køA9ࡥkø9ࡥđAA9࣒ࡥЇʪϑЇθϩʪϑϩʭͱЇ࢖ʀɇΧɇʀϩʭ
ʒʪʀͱЇΧʪθ࢖ɇʪϩɇϩͱʭʪʀϩθαЇʪΧͱЇθθɇϩΧθͱЭͱαЇʪθЇʀ˵ͱʀʭʪʀϩθαЇʪͱЇЇʀʪʒʪ࢏
MONTAGE
AVERTISSEMENT
Ǥʪʪіɞɵʪϑʪθθʪθʪϑѣϑʪϩɞʪϑѣуʪθ˙ʪθʪʪϩɇѣαЇ࢖ɇЇʀЇʪΧθʪϑϑͱʪуϩʭθʪЇθʪϑЇθʪϑʀɑɵʪϑ
ne puisse provoquer une traction sur le bornier.
 ƊЇʪʀͱϑϑʪʪϑϩɇϑʪθθʭʪࡥʀʪɇΧʪЇϩ˝ʭʭθʪθʒʪɇʀ˵ɇʪЇθʪϩΧθͱЭͱαЇʪθЇʀʪʒʪ࢏
ø࢖ɇʪϩɇϩͱʭʪʀϩθαЇʪ˙ͱЇθʪΧʪЇϩʲϩθʪϑЇΧʭθʪЇθʪͱЇ˙ʭθʪЇθʪʒʪߤΧɇθθɇΧΧͱθϩɞɇϩʪϑͱ
nominale.
 S࢖ɇʪϩɇϩͱʭʪʀϩθαЇʪ˙ͱЇθʪ࢖ʪϑϩΧɇϑϑϩɇɵʪࡥʀʪɇθɇʀʀͱЇθʀϩɇͱ˝ʭЭϩʭʒʪϑɵɇϩϩʪθʪϑʒʪ
ϑϩͱʀɇ˝ʪ࢏Ɗ࢖ɇʪϩɇϩͱʭʪʀϩθαЇʪ˙ͱЇθʪʒʭΧɇϑϑʪʒʪΧЇϑʒʪߦɇϩʪϑͱͱɇʪࡥ࢖ɇΧΧɇθʪ
ϑ࢖ɇθθʲϩʪʪϩɇ˙ѣʀ˵ʪʪϑʪθθʪЇθϑαЇͱϩʪϩθɇʭϑɇϑʪʪΧθͱϩʪʀϩͱ࢏
Veillez à ce que l'alimentation électrique de l'unité intérieure ne soit ni supérieure ni inférieure à la
tension nominale.
 ɇЇϩʪʒʪαЇͱࡥ࢖ɇΧΧɇθʪθϑαЇʪʒʪʀͱɇϩθʪʒʪϑʒцϑ˙ͱʀϩͱʪʪϩϑʀɇЇϑʭϑΧɇθʒʪϑʀͱΧͱϑɇϩϑ
ʭʪʀϩθαЇʪϑʪʒͱɇ˝ʭϑͱЇЇʪɵɇϑϑʪʒʪθʪʒʪʪϩʒʪϑʪϑʀͱΧͱϑɇϩϑ࢏
ƸϩϑʪіЇαЇʪʪϩʒʪϑѣϑʪʀЇЭθʪΧͱЇθʪʀɑɵʪʒ࢖ɇʪϩɇϩͱ࢏ƟͱЇϑʪϑʀɑɵɇ˝ʪϑࡥʀͱΧͱϑɇϩϑʪϩ
matériels doivent être conformes aux réglementations locales et nationales en vigueur.
ǤʪʪіɞʀʪαЇʪϩͱЇϑʪϑʀɑɵɇ˝ʪϑϑͱʪϩϑϩɇʭϑʀͱθθʪʀϩʪʪϩ࢏
 ɇЇϩʪʒʪαЇͱࡥ࢖ɇΧΧɇθʪΧͱЇθθɇϩϑЇθʀ˵ɇЇ˙˙ʪθʪϩΧθͱЭͱαЇʪθЇʀʪʒʪ࢏
Ę࢖ЇϩϑʪіɇɇϑʒʪϑϩЇцɇЇуʪϩʒʪϑΧʽʀʪϑʭЭɇϑʭʪϑʀͱʅЇϑΧͱЇθʪѤЇʒʪ˙θ˝ͱθ˝ʽʪŵࣛߤߤ࢏
En cas de fuite de gaz réfrigérant pendant l'installation, veuillez ventiler la zone.
 ƊʒЇ˝ɇіθʭ˙θ˝ʭθɇϩϑʪʀͱɵʪɇЭʪʀʒʪϑɇϩʭθɇЇуѤɇɇɵʪϑࡥʒʪϑ˝ɇіϩͱуαЇʪϑΧͱЇθθɇʪϩϑʪ
former.
øʪϑϩθɇЭɇЇуʒ࢖ʭʪʀϩθʀϩʭʒͱЭʪϩʲϩθʪθʭɇϑʭϑΧɇθЇɇ˝ʪϩʒʪϑʪθЭʀʪͱЇʒʪϑΧʪθϑͱʪϑαЇɇѣʭʪϑ
ʀͱ˙ͱθʭʪϩɇЇуθʭ˝ʪʪϩɇϩͱϑɇϩͱɇʪϑϑЇθʪʀɑɵɇ˝ʪࡥʪϩϑʪЇʒЇʀɑɵʪʀͱ˙ͱθʪʒͱϩʲϩθʪ
utilisé.
 ƸʪɵɇϑϑʪʒʪϩʪϑͱࡥЇʪʀͱЇΧЇθʪʒ࢖ɇʪϩɇϩͱʭʪʀϩθαЇʪࡥʒʪϑϩθɇЭɇЇуʒ࢖ʭʪʀϩθʀϩʭʀͱθθʪʀϩϑʪϩ
࢖ЇϩϑɇϩͱʒʪѣϑͱɇΧΧθͱЇЭʭϑΧʪЇЭʪϩΧθͱЭͱαЇʪθЇʀ˵ͱʀʭʪʀϩθαЇʪͱЇЇʀʪʒʪ࢏

8
Safety Information
English
Safety Information
Safety Information
MONTAGE MISE EN GARDE
Veillez à effectuerune mise à la terre conforme.
 ĘʪʀͱʪʀϩʪіΧɇϑʪѣʒʪϑʪɞɇϩʪθθʪɇЇϩЇцɇЇʒʪ˝ɇіࡥɇЇΧɇθɇϩͱʪθθʪͱЇɇЇѣʒʪϩʭʭΧ˵ͱʪ࢏
 ø࢖ɇɵϑʪʀʪʒʪϑʪɞɇϩʪθθʪʪϑϩϑЇϑʀʪΧϩɵʪʒʪΧθͱЭͱαЇʪθЇʀ˵ͱʀʭʪʀϩθαЇʪͱЇЇʀʪʒʪ࢏
Veillez à ce que les condensats s'évacuent correctement parle tuyau de vidange conformément aux
θʪʀͱɇʒɇϩͱϑʒЇΧθʭϑʪϩɇЇʪʒ࢖ϑϩɇɇϩͱࡥʪϩϑͱʪіʪϩЇцɇЇʒʪЭʒɇ˝ʪɇѣʒ࢖ʭЭϩʪθɇ
formation de givre.
 Ɗ࢖ϑϩɇɇϩͱʒʪɇЭʒɇ˝ʪʪϑϩ˙ɇϩʪʒʪ˙ɇʅͱʀͱΧʽϩʪࡥʒʪϑʒͱɇ˝ʪϑɇϩʭθʪϑΧθͱЭͱαЇʭϑΧɇθ
ʒʪϑ˙Їϩʪϑʒ࢖ʪɇЇΧʪЇЭʪϩϑЇθЭʪθ࢏
Ãϑϩɇʪіʪʀɑɵʪʒ࢖ɇʪϩɇϩͱʪϩʪʀɑɵʪʒʪʀͱЇʀɇϩͱʒʪɇđAƸɞЇʪʒϑϩɇʀʪʒ࢖ɇЇͱϑߣ
ʒʪϑɇΧΧɇθʪϑʭʪʀϩθαЇʪϑʪϩɞɇЇͱϑߤʒЇΧɇθɇϩͱʪθθʪ࢏
 AʪΧʪʒɇϩࡥЭͱЇϑΧͱЇθθʪіʪϩʪʒθʪЇɵθЇϩɞߣɞ࢖ʭʀɇθϩʒʪ࢖ɇΧΧɇθʪʪ˙ͱʀϩͱʒʪϑʀͱʒϩͱϑʒʪ
࢖ͱʒʪʭʪʀϩθαЇʪ࢏
Installez la MCU loin de tout dispositif d'éclairage utilisant un ballast.
 ƊЭͱЇϑЇϩϑʪіɇϩʭʭʀͱɇʒʪϑɇϑѣࡥϑͱ˙ͱʀϩͱʪʪϩΧʪЇϩʲϩθʪɇϩʭθʭ࢏
N'installez pas l'appareil dans les lieux suivants.
 ƟͱЇϩʪʒθͱϩʀͱϩʪɇϩЇʪ˝θɇʒʪαЇɇϩϩʭʒ࢖˵ЇʪʭθɇʪࡥʒʪͱϑϑϑЇθʪϑͱЇʒ࢖ɇʀʒʪɇθϑʭαЇʪࡤ
øʪϑΧɇθϩʪϑʪθʭϑʪΧͱЇθθɇʪϩɵθЍʪθʪϩΧθͱЭͱαЇʪθɇʀ˵ЇϩʪʒʪϑʀͱΧͱϑɇϩϑͱЇЇʪ˙ЇϩʪʒʪѤЇʒʪ
˙θ˝ͱθ˝ʽʪ࢏
 øʪϑіͱʪϑͱИʒʪϑ˝ɇіʀͱθθͱϑ˙ϑࡥʀͱʪʒʪ࢖ɇʀʒʪϑЇ˙ЇθαЇʪࡥϑ࢖ʭʀ˵ɇΧΧʪϩʒЇϩЇцɇЇʒʪЭʪϩɇϩͱͱЇ
ʒʪɇϑͱθϩʪʒ࢖ɇθࡤ
øʪϩЇцɇЇʒʪʀЇЭθʪͱЇʒʪʀͱʪуͱθϑαЇʪʒʪϑʪʀͱθθͱʒʪθʪϩʪαЇʒʪθʭ˙θ˝ʭθɇϩΧͱЇθθɇϩ˙Їθ࢏
 øʪϑʪΧɇʀʪʪϩϑʒɇϑʪϑαЇʪϑЇɇΧΧɇθʪ˝ʭʽθʪʒʪϑͱʒʪϑʭʪʀϩθͱɇ˝ʭϩαЇʪϑࡤ
UʪϑΧθͱɵʽʪϑʒɇϑʪϑцϑϩʽʪʒʪʀͱɇʒʪΧʪЇЭʪϩʪϩθɇʪθЇɇЇЭɇϑ˙ͱʀϩͱʪʪϩʒʪ
࢖ɇΧΧɇθʪ࢏
 øʪЇͱИцɇЇʒɇ˝ʪθʒʪ˙Їϩʪʒʪ˝ɇіʀͱɵЇϑϩɵʪࡥʪϩͱИʒʪϑɇϩʽθʪϑѤɇɇɵʪϑࡥϩʪʪϑ
αЇʪʒЇʒЇɇϩʪϩʒʪ࢖ʪϑϑʪʀʪࡥϑͱϩɇΧЇʭϑ࢏øʪЇͱИʒʪɇѣɵθʪʒʪʀɇθɵͱʪͱЇʒʪɇΧͱЇϑϑʽθʪ
ѤɇɇɵʪʪϑϩʪϑЇϑΧʪϑͱʒɇϑ࢖ɇθࡤ
Ɗʪ˝ɇі˙ЇϩʪϩθʪϑϩʪɇЇϩͱЇθʒʪɇЭɇʪΧθʀΧɇʪࡥʀʪɇΧʪЇϩʒʭʀʪʀ˵ʪθЇ˙ʪЇ࢏
 øʪЇͱИцɇЇʪΧͱϑϑɵϩʭʒʪʀͱθθͱϑͱʒʪɇđAƸࡥϩʪЇϑΧɇͱЇЇɵͱθʒʒʪʪθ࢏
Lorsqu'il y a la possibilité que le lieu où la MCU va être installée soit utilisé comme un abri par de petits
animaux, prenez les mesures nécessaires pour éviter toute intrusion.
 ƊʒʪΧʪϩϩϑɇɇЇуʪϩθʪϩʪʀͱϩɇʀϩɇЭʪʀ࢖ɇΧΧɇθʪࡥʀʪɇΧʪЇϩʪϩθɇʪθϑͱʒцϑ˙ͱʀϩͱʪʪϩࡥЭͱθʪЇ
ʀʪʒʪʪϩʒʪɇ˙Їʭʪ࢏ǤʪЇʪіθɇΧΧʪʪθɇЇуЇϩϑɇϩʪЇθϑʒʪʪϩϩͱцʪθʪϑʪЇуɇЇуɇʪϩͱЇθϑʒʪɇđAƸ࢏
࢜ ƟͱЇϩʪθʭʀɇɇϩͱʀͱϑʭʀЇϩЭʪɞ࢖ͱɵϑʪθЭɇϩͱʒʪϑΧθʭʀɇЇϩͱϑʒʪϑʭʀЇθϩʭʪϑϩɇθʪϑΧͱϑɇɵϩʭʒʪ
࢖ϑϩɇɇϩʪЇθ࢏
࣑ø࢖ϑϩɇɇϩʪЇθʪϑϩθʪϑΧͱϑɇɵʪʒЇʀͱЍϩʒЇϑʪθЭʀʪ࢏࣒

9
English
Preparation
Please check if items below are included in installation accessories.
࢜Please purchase Y-connector separately. (Not included)
Selecting the refrigerant pipe forinstallation
Ɵ˵ʪʒʪϑ˝ΧθʪϑϑЇθʪͱ˙đAƸ˙ͱθŵࣛߦߣߢϑɇɵͱЇϩߦ࢏ߣđťɇ࢏ͱθϑɇ˙ʪЇϑʪͱ˙ϩ˵ʪΧθͱʒЇʀϩࡥΧʪɇϑʪθʪ˙ʪθϩͱϩ˵ʪϩɇɵʪ
below in selecting the installation pipe.
Name Insulation
(for pipe)
Insulation
(for base)
Installation
manual
Pattern
sheet Cable tie Tube Cap
Shape
Name Y-connector
[ Ø 9.52 mm (3/8"): DB96-23143A ], [ Ø15.88 mm (5/8"): DB96-23144A ]
Shape
Accessories
࡛ ͱθΧΧʪϑɇθ˝ʪθϩ˵ɇŝߣ߫࢏ߢߧ࣑ߥࢩߦ࢕࣒ࡥʒθɇиϩцΧʪ࣑AߣߤߤߢƟࣛߣࢩߤ²ͱθAߣߤߤߢƟࣛ²࣒ϩцΧʪʀͱΧΧʪθΧΧʪ
ЇϑϩɵʪЇϑʪʒ࢏Ã˙ɇɇʪɇʪʒϩцΧʪ࣑AߣߤߤߢƟࣛĮ࣒ʀͱΧΧʪθΧΧʪϑЇϑʪʒࡥΧΧʪɇцɵθʪɇʒЇʪϩͱϩϑͱи
pressure resistance and cause personal injury.
Outer diameter Minimum thickness Temper grade
mm inch mm inch
ߨ࢏ߥߧ ߣࢩߦ 0.70 0.028
Annealed
߫࢏ߧߤ ߥࢩߪ 0.70 0.028
12.70 ߣࢩߤ 0.80 ߢ࢏ߢߥߣ
ߣߧ࢏ߪߪ ߧࢩߪ 1.00 ߢ࢏ߢߥ߫
ߣ߫࢏ߢߧ ߥࢩߦ ߢ࢏߫ߢ ߢ࢏ߢߥߧ
Drawn
22.22 ߩࢩߪ ߢ࢏߫ߢ ߢ࢏ߢߥߧ
Preparing the installation
࡛ ťͱЇθʒʪϑʀͱʒЇϩϑʒͱϩʪʒɇʽϩθʪʪϑϩϑЇΧʭθʪЇθɞŝߣ߫ࡥߢߧ࣑ߥࢩߦ࢕࣒ࡥʀͱЭʪϩʒ࢖ЇϩϑʪθЇʀͱʒЇϩ
ʪʀЇЭθʪʒʪϩцΧʪʭϩθʭ࣑AߣߤߤߢƟࣛߣࢩߤ²ͱЇAߣߤߤߢƟࣛ²࣒࢏ƊЭͱЇϑЇϩϑʪіЇʀͱʒЇϩʪʀЇЭθʪʒʪϩцΧʪ
θʪʀЇϩ࣑AߣߤߤߢƟࣛĮ࣒ࡥΧͱЇθθɇϩϑʪθͱΧθʪɞʀɇЇϑʪʒʪϑɇ˙ɇɵʪθʭϑϑϩɇʀʪɞɇΧθʪϑϑͱʪϩɵʪϑϑʪθ
αЇʪαЇ࢖Ї࢏

10
Preparing the installation
English
Preparation
HR Changer, MCU, Indoorand outdoor unit compatible table
9ʪ˙ͱθʪϑϩɇ˝đAƸɇʒ²ŵA˵ɇ˝ʪθࡥθʪ˙ʪθϩͱϩ˵ʪʀͱΧɇϩɵʪϩɇɵʪɵʪͱиɇʒѣʒϩ˵ʪͱʒʪɵʪ˙ͱθʪϑϩɇɇϩͱ
Outdoor Unit
AM****XMD*R
HR Changer
đAƸࣛŵߦĘkçߢĘ
Sub MCU
đAƸࣛƊߨĘkçߥĘ
đAƸࣛƊߨĘkçߤĘ
đAƸࣛƊߦĘkçߥĘ
đAƸࣛƊߤĘkçߤĘ
đAƸࣛƊߣĘkçߣĘ
Indoor Unit
AM****N****
• HR Changer can be installed in series or in parallel.
࡛ ͱθϑʪθɇϑϩɇɇϩͱࡥϩ˵ʪͱθʒʪθͱ˙²ŵA˵ɇ˝ʪθɇʒđAƸϑЭʪθцΧͱθϩɇϩ࢏
HR Changer must be installed after the outdoor unit.
Ã˙đAƸϑϑϩɇʪʒѣθϑϩɇ˙ϩʪθϩ˵ʪͱЇϩʒͱͱθЇϩࡥϩиͱϩиͱθΧθͱΧʪθц࢏
࡛ ͱθΧɇθɇʪϑϩɇɇϩͱࡥ²ŵA˵ɇ˝ʪθЇϑϩɵʪϑϩɇʪʒɇ˙ϩʪθϩ˵ʪǽࣛͱϩ࢏
Ã˙цͱЇʒͱ࢖ϩϑϩɇ²ŵA˵ɇ˝ʪθɇ˙ϩʪθϩ˵ʪǽࣛͱϩࡥϩиͱϩиͱθΧθͱΧʪθц࢏
࡛ Ã˙цͱЇϑϩɇͱцđAƸиϩ˵ͱЇϩ²ŵA˵ɇ˝ʪθࡥϩ˵ɇΧΧʪϩͱͱʀʀЇθϩ˵ʪʪθθͱθ࣑kߤߣߦ࣒࢏
Cooling only indoor units must be installed bhind the HR Changer.
Aɇϑϑѣʀɇϩͱ Model Description
HR Changer MCU ࣛŵߦĘkçߢĘ below 22.4 kW (76MBH)
࢜ ɵͱЇϩđAƸࣛƊߨĘkçߥĘࡥđAƸࣛƊߨĘkçߤĘࡥđAƸࣛƊߦĘkçߥĘࡥđAƸࣛƊߤĘkçߤĘࡥđAƸࣛƊߣĘkçߣĘࡥ
please refer to those own installation manual
࡛ øʪʀ˵ɇ˝ʪЇθ²ŵΧʪЇϩʲϩθʪϑϩɇʭʪϑʭθʪͱЇʪΧɇθɇʽʪ࢏
࡛ ÃʪϑϩϩθʽϑΧͱθϩɇϩʒʪθʪϑΧʪʀϩʪθࣱͱθʒθʪʒЇʀ˵ɇ˝ʪЇθ²ŵʪϩʒЇđAƸʒɇϑʪʀɇϑʒࣱЇʪϑϩɇɇϩͱ
ʪϑʭθʪ࢏
øʪʀ˵ɇ˝ʪЇθ²ŵʒͱϩʲϩθʪϑϩɇʭɇΧθʽϑࣱЇϩʭʪуϩʭθʪЇθʪ࢏
øʪđAƸʪ˙ͱʀϩͱʪθɇΧɇϑʀͱθθʪʀϩʪʪϩϑࣱʪϑϩϑϩɇʭʪΧθʪʪθɇΧθʽϑࣱЇϩʭʪуϩʭθʪЇθʪ࢏
࡛ øʪʀ˵ɇ˝ʪЇθ²ŵʒͱϩʲϩθʪϑϩɇʭɇΧθʽϑʪͱϩʪǽʒɇϑʪʀɇϑʒࣱЇʪϑϩɇɇϩͱΧɇθɇʽʪ࢏
øʪʀ˵ɇ˝ʪЇθ²ŵʪ˙ͱʀϩͱʪθɇΧɇϑʀͱθθʪʀϩʪʪϩϑࣱࣱʪϑϩΧɇϑϑϩɇʭɇΧθʽϑʪͱϩʪǽ࢏
࡛ øࣱʪθθʪЇθkߤߣߦϑЇθЭʪϩϑЭͱЇϑϑϩɇʪіЇαЇʪʪϩʪđAƸϑɇϑʪʀ˵ɇ˝ʪЇθ²ŵ࢏
øʪϑЇϩʭϑʒࣱϩʭθʪЇθɞθʪ˙θͱʒϑϑʪʪϩϑʪЇʒͱЭʪϩʲϩθʪϑϩɇʭʪϑʒʪθθʽθʪʪʀ˵ɇ˝ʪЇθ²ŵ࢏

11
English
Preparation
Gas pipe connected to the indoor units
øαЇʒΧΧʪʀͱʪʀϩʪʒϩͱϩ˵ʪʒͱͱθЇϩϑ
ףߣ߫࢏ߢߧ࣑ߥࢩߦ࢕࣒ࡥŵЇɵɵʪθAɇΧ
ףߣߧ࢏ߪߪ࣑ߧࢩߪ࢕࣒ࡥŵЇɵɵʪθAɇΧ
ף߫࢏ߧߤ࣑ߥࢩߪ࢕࣒ࡥŵЇɵɵʪθAɇΧ
ףߨ࢏ߥߧ࣑ߣࢩߤ࢕࣒ࡥŵЇɵɵʪθAɇΧ
Aͱʪʀϩϩͱϩ˵ʪĮЇϩʒͱͱθƸϩConnect to the Sub MCU
ף߫࢏ߧߤ࣑ߥࢩߪ࢕࣒ࡥǮʪʒ˝
ף߫࢏ߧߤ࣑ߥࢩߪ࢕࣒ࡥǮʪʒ˝
ףߣߧ࢏ߪߪ࣑ߧࢩߪ࢕࣒ࡥǮʪʒ˝
ףߣ߫࢏ߢߧ࣑ߥࢩߦ࢕࣒ࡥǮʪʒ˝
< HR Changer (MCU-R4NEK0N) >
< Side view of HR Changer>

12
Space requirements
English
Installation
ߥ࢏ Ãϩϑͱθɇцθʪʀͱʪʒʪʒϩͱϑϩɇ²ŵA˵ɇ˝ʪθɇ˵ɇиɇцɵЇϩɇɵЇ˵ʪɇʒϑ˵ͱЇʒɵʪϑϩɇʪʒϩͱіʪϩ˵ʪ
ͱϑʪ˙θͱɵʪ˝ϩθɇϑ˙ʪθθʪʒϩͱЭ˝ɇθʪɇ࢏࣑ŵʪ˙ʪθϩͱϩ˵ʪɵʪͱиѣ˝Їθʪ࣒
࢜ ƊͱЇʒΧθͱͱ˙ɇʒϑͱЇʒΧθͱͱѣ˝ɇϩʪθɇϑ
 Ɵ˵ʪΧɇʀʪи˵ʪθʪ²ŵA˵ɇ˝ʪθϑϑϩɇʪʒɇʒϩ˵ʪϩʪθͱθиɇϑϑ˵ͱЇʒ˵ɇЭʪɇ˵˝˵ϑͱЇʒΧθͱͱ˙ɇɵϩц࢏
(Bricks, Concretes, Cement)
 Ɵ˵ʪʀʪ˝и˵ʪθʪ²ŵA˵ɇ˝ʪθϑϑϩɇʪʒϑ˵ͱЇʒɵʪʀͱɇϩʪʒиϩ˵αЇɇϩцƟʪуϩ˵ɇϩ˵ɇϑɇ˝ͱͱʒϑͱЇʒΧθͱͱ˙
function.
 đіʪϩ˵ʪϑіʪͱ˙ϩ˵ʪ˵ͱʪɵʪϩиʪʪϩ˵ʪиɇϑɇʒϩ˵ʪΧΧʪʀͱʪʀϩͱ࢏˙ϩʪθϩ˵ʪϑϩɇɇϩͱࡥɵͱʀϩ˵ʪ
gap to prevent noise from leaking.
<There is no risk of noise tran sfer> <There is a risk of noise transfer>
øЭ˝ɇθʪɇ øЭ˝ɇθʪɇøЭ˝ɇθʪɇ
Bulkhead
øЭ˝ɇθʪɇHallway
HR Changer HR Changer
Hallway
1. Since refrigerant noise can be generated during the HR Changer operation, do not install the unit on the ceiling of
ϩ˵ʪΧɇʀʪϑϩ˵ɇϩθʪαЇθʪϑϑʪʀʪϑЇʀ˵ɇϑɵʪʒθͱͱϑࡥɵθɇθʪϑࡥ˵ͱϑΧϩɇϑɇʒͱ˙ѣʀʪϑʪϩʀ࢏
ߤ࢏ Uͱͱϩϑϩɇϩ˵ʪ²ŵA˵ɇ˝ʪθϩ˵ʪʀʪ˝ͱ˙ϩ˵ʪЭ˝ɇθʪɇ࢏Įϩ˵ʪθиϑʪࡥͱϑʪ˝ʪʪθɇϩʪʒ˙θͱϩ˵ʪ²ŵA˵ɇ˝ʪθ
may disturb people in that area and cause inconvenience.
<Spaces with developed ceiling> Aʪ˝ͱ˙ϩ˵ʪͱ˙ѣʀʪ
Space requirements

13
English
Installation
߫࢏ ƊʪʪʀϩɇΧɇʀʪиϩ˵ʪͱЇ˝˵ϑΧɇʀʪ˙ͱθθʪΧɇθ˝ɇʒϑʪθЭʀʪϑ࢏
࣑øʪɇЭʪʪͱЇ˝˵ϑΧɇʀʪɵʪϩиʪʪϑʒʪиɇϑϑϩɇɇϩͱ࢏ࣛθʪ˙ʪθϩͱϩ˵ʪΧʀϩЇθʪɵʪͱи࣒
ߦ࢏ ƊʪʀЇθʪͱЭʪθߢ࢏ߤߧ࣑ߢ࢏ߪߤ࢖࣒ͱ˙ϑΧɇʀʪи˵ʪ²ŵA˵ɇ˝ʪθϑɵʪ˝ѣуʪʒϩͱϩ˵ʪʀͱʀθʪϩʪͱ˙ϩ˵ʪʀʪ˝࢏
ߧ࢏ ²ŵA˵ɇ˝ʪθɇц˝ʪʪθɇϩʪͱϑʪϑͱʒͱࣱϩϑϩɇϩϩͱͱʀͱϑʪϩͱϩ˵ʪʀʪ˝Ɵʪу࢏
ߨ࢏ kɇʀ˵ΧΧʪ˵ɇ˝ʪθϑ˵ͱЇʒɵʪΧɇʀʪʒɇϩߣ࢏ߧ࣑ߦ࢏߫ߤ࢖࣒ϩʪθЭɇϩͱϑЇΧΧͱθϩϩϑиʪ˝˵ϩѣθц࢏
Ã˙ϩ˵ʪΧΧʪͱθϩ˵ʪ˵ɇ˝ʪθϑࣱϩѣуʪʒѣθцࡥϩ˵ʪЇϩɇц˙ɇɇʒʀɇЇϑʪɇΧθͱΧʪθϩцʒɇɇ˝ʪͱθͱϑϑͱ˙˙ʪ࢏
ߩ࢏ Ǯ˵ʪ࢖øͱиϩʪΧʪθɇϩЇθʪʀͱͱ˝θɇ˝ʪʪуΧɇϑͱ࢖ͱΧϩͱϑϑʪϩ˙ͱθʀͱϑϩɇϩʀͱͱ˝ͱΧʪθɇϩͱϩ˵θͱЇ˝˵ͱЇϩϩ˵ʪцʪɇθࡥ
noise of the HR Changer may get louder during winter time. Therefore, above installation conditions must be complied.
8. Select the place where HR Changer supporting structure can support the weight of the indoor unit and have strong
vibration resistance without any slope.
(If the structure is not strong enough, HR Changer may fall down and break, which can cause injury to your body.)
Ceiling tex
Ceiling concrete
HR Changer
ߣ࢏ߧ࣑ߧ࢖࣒ͱθʪϑϑ ߣ࢏ߧ࣑ߧ࢖࣒ͱθʪϑϑ
Pipe hanger
Refrigerant pipe
Uͱͱϩϑϩɇϩ˵ʪ²ŵA˵ɇ˝ʪθϩͱʀͱϑʪϩͱϩ˵ʪʀʪ˝ƟʪуࣈЇߧߢ࣑ߤ࢖࣒ࣉ
ߩߨ࣑ߥ࢕࣒
or more
ߣ߫߫
ߧߢߢ࣑ߤߢ࢕࣒
or more
HR Changer
ߦߢߢ࣑ߣߨ࢕࣒ͱθͱθʪ
700 mm
࣑ߤߪ࢕࣒ͱθͱθʪ
ߧߢߢ࣑ߤߢ࢕࣒
or more
ߩߤߪ࣑ߤߪ࢏ߩ࢕࣒
ߦߨ߫࣑ߣߪ࢏ߧ࢕࣒

14
Installing the unit
English
Installation
ߣ࢏ ²ŵA˵ɇ˝ʪθϑΧʪʀѣʀɇϩͱ
Aɇϑϑѣʀɇϩͱ Unit HR Changer
Model name - đAƸࣛŵߦĘkçߢĘ
The exterior -
The number of branches k 4
The maximum number of the connectable indoor unit per branch k ߥ
The maximum capacity of the connectable indoor unit per branch kW ߧ࢏ߨ
The maximum capacity of connectable indoor units per branch
(Using Y-Joint) kW 14
The maximum capacity of connectable indoor units kW 22.4
ÃϩʪθɇkkǤ -
Not included
Cannot connect indoor unit without internal
kkǤ
Installing the unit

15
English
Installation
2. Installing the indoor unis
< Serial installation >
HR Changer MCU
< Parallel installation >
HR Changer
HR Changer
Ã˙ϩ˵ʪʀɇΧɇʀϩцͱ˙ϩ˵ʪʒͱͱθЇϩϑЇʒʪθߧ࢏ߨǮࡥʒͱ࢖ϩЇϑʪǽࣛʀͱʪʀϩͱθ࢏
Ã˙ϩ˵ʪʀɇΧɇʀϩцͱ˙ϩ˵ʪʒͱͱθЇϩϑɵʪϩиʪʪߧ࢏ߨǮɇʒߣߦ࢏ߢǮࡥЇϑʪǽࣛʀͱʪʀϩͱθ˙ͱθϩ˵ʪ˝ɇϑɇʒαЇʒʪ࢏
In case of using Y-connector, it is only connectable for port combination as the followings;
ࣛAʀͱʪʀϩɇɵʪΧͱθϩʀͱɵɇϩͱ˙ͱθǽࣛʀͱʪʀϩͱθࡤ9ΧͱθϩࡥAUΧͱθϩࡥkΧͱθϩ
ࣛĘͱࣛʀͱʪʀϩɇɵʪΧͱθϩʀͱɵɇϩͱ˙ͱθǽࣛʀͱʪʀϩͱθࡤ9AΧͱθϩࡥUkΧͱθϩࡥͱࣛʀͱϩЇͱЇϑΧͱθϩ
Set Dip Switch option for using Y-connector
1
ON
2
ABCD
34 1
ON
2
EF
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
ABC DE F
1
ON
234
ƊࢩǮĮΧϩͱUÃť
switch
MCU address
swich DIP switch
1
ON
234 1
ON
234 1
ON
234 1
ON
234
ƊࢩǮĮΧϩͱ ƊࢩǮĮΧϩͱ ƊࢩǮĮΧϩͱ ƊࢩǮĮΧϩͱ
Default Combination
of A+B port
Combination
of C+D port
Combination
ͱ˙kΧͱθϩ

16
Installing the unit
English
Installation
4. Cautions about HR Changer installation.
 Ǯ˵ʪѣу˝ϩ˵ʪЇϩɇϩϩ˵ʪЇΧΧʪθΧɇʀʪЇϑ˝ϑЇϑΧʪϑͱɵͱϩϑࡥЇϑʪɇЇϩɇʒиɇϑ˵ʪθϩͱЭʪθϩʀɇц˙ɇϑϩʪϩ˵ʪЇϩ࢏
  Ɵ˵ʪθʪɇθʪ˙ͱЇθϑΧͱϩϑϩͱѣуϩ˵ʪϑЇϑΧʪϑͱɵͱϩϑ࢏đɇʪϑЇθʪʪЭʪθцϑΧͱϩϑѣуʪʒ࢏
  Ɵ˵ʪЇΧΧʪθɇʒϩ˵ʪͱиʪθϑʒʪͱ˙²ŵA˵ɇ˝ʪθϑʒϑϩ˝Їϑ˵ʪʒࡥϑͱɵʪʀɇθʪ˙ЇͱϩϩͱϩЇθϩ˵ʪЇϩЇΧϑʒʪ
ʒͱии˵ʪϑϩɇ˝ϩ˵ʪЇϩ࢏Įϩ˵ʪθиϑʪࡥͱϑʪɇцɵʪ˝ʪʪθɇϩʪʒͱθϩ˵ʪΧθͱʒЇʀϩɇцɵʪʒɇɇ˝ʪʒ࢏
Nut
Washer
Anti vibration
rubber
ɇϑϩʪϩ˵ʪЇϩѣθц
<Fixing the bolt>
ߩߨߦ࣑ߥߢ࢏ߢߪ࣒࣑9ʪϩиʪʪϩ˵ʪͱʀɇϩͱϑͱ˙ϑЇϑΧʪϑͱɵͱϩϑ࣒
224 (8.82)
224 (8.82)
Unit : mm (inch)
øͱʀɇϩͱɇʒϩʪθЭɇϑͱ˙ѣуʪʒϑЇϑΧʪϑͱɵͱϩϑ
ߥ࢏ ťθʪΧɇθɇϩͱɵʪ˙ͱθʪϑϩɇɇϩͱ࢏
Concrete
Hole in anchor
Hole in plug
ƊЇϑΧʪϑͱɵͱϩ࣑ߥࢩߪ࢕ͱθđߣߢ࣒
Insert
Ceiling support
1) Place the pattern sheet on the ceiling at the spot where you want to
install the indoor unit.
• Since the diagram is made of paper, it may shrink or stretch slightly
ʒЇʪϩͱϩʪΧʪθɇϩЇθʪͱθ˵Їʒϩц࢏ͱθϩ˵ϑθʪɇϑͱࡥɵʪ˙ͱθʪʒθ˝ϩ˵ʪ
holes maintain the correct dimensions between the markings.
2) Insert bolt anchors, use existing ceiling supports or construct a
ϑЇϩɇɵʪϑЇΧΧͱθϩɇϑϑ˵ͱиѣ˝Їθʪ࢏
ߥ࣒ Ãϑϩɇϩ˵ʪϑЇϑΧʪϑͱɵͱϩϑʒʪΧʪʒ˝ͱϩ˵ʪʀʪ˝ϩцΧʪ࢏
࡛ kϑЇθʪϩ˵ɇϩϩ˵ʪʀʪ˝ϑϑϩθͱ˝ʪͱЇ˝˵ϩͱϑЇΧΧͱθϩϩ˵ʪ
weight of the indoor unit. Before hanging the unit, test the
strength of each attached suspension bolt.
࡛ Ã˙ϩ˵ʪʪ˝ϩ˵ͱ˙ϑЇϑΧʪϑͱɵͱϩϑͱθʪϩ˵ɇߣ࢏ߧ࣑ߦ࢏߫ߤ࢖࣒ࡥϩ
ϑθʪαЇθʪʒϩͱΧθʪЭʪϩЭɵθɇϩͱ࢏
• If this is not possible, create an opening on the false
ʀʪ˝ͱθʒʪθϩͱɵʪɇɵʪϩͱЇϑʪϩϩͱΧʪθ˙ͱθϩ˵ʪθʪαЇθʪʒ
operations on the indoor unit.
࡛ ϑϑЇθʪіࣛЭͱЇϑαЇʪʪΧɇ˙ͱʒʪϑϩɇϑϑʪіϑͱʒʪΧͱЇθ
ϑЇΧΧͱθϩʪθʪΧͱʒϑʒʪࣱЇϩʭϩʭθʪЇθʪ࢏Эɇϩʒ࢖ɇʀʀθͱʀ˵ʪθ
࢖ЇϩʭࡥЭʭθѣʪіɇϑͱʒϩʭʒʪʀ˵ɇαЇʪɵͱЇͱʒʪϑЇϑΧʪϑͱ࢏
•
Ɗɇͱ˝ЇʪЇθʒЇɵͱЇͱʒʪϑЇϑΧʪϑͱʪϑϩϑЇΧʭθʪЇθʪɞߣࡥߧ
࣑ߦࡥ߫ߤΧ࣒ࡥЭͱЇϑʒʪЭʪі˙ɇθʪʪʭʀʪϑϑɇθʪΧͱЇθʭЭϩʪθʪϑЭɵθɇϩͱϑ࢏
࡛ Ɗʀʪ࢖ʪϑϩΧɇϑΧͱϑϑɵʪࡥʀθʭʪіЇʪͱЇЭʪθϩЇθʪʒɇϑʪ˙ɇЇу
Χɇ˙ͱʒΧͱЇθΧͱЇЭͱθʪ˙˙ʪʀϩЇʪθʪϑͱΧʭθɇϩͱϑθʪαЇϑʪϑϑЇθ
࢖ЇϩʭϩʭθʪЇθʪ࢏

17
English
Installation
ߧ࢏ ²ͱиϩͱʀͱʪʀϩϩ˵ʪΧΧʪʪ࢏
Pipe connection from the outdoorunit
Pipe connection the outdoorunit
øαЇʒΧΧʪ࣑иʪʒ˝࣒
Gas pipe (welding)
Protect with wet towel when welding
Pipe connection to
the another MCU 70 mm
øͱиΧθʪϑϑЇθʪ˝ɇϑΧΧʪʀͱʪʀϩͱ࣑иʪʒ˝࣒
High pressure gas pipe connection (welding)
øαЇʒΧΧʪʀͱʪʀϩͱ࣑иʪʒ˝࣒
When installing HR Changer , use the pattern sheet for installation that is provided with the product.
Ǯ˵ʪиʪʒ˝ϩ˵ʪ˝ɇϑΧΧʪϑࡥΧθͱϩʪʀϩϩ˵ʪΧθͱʒЇʀϩиϩ˵ϩ˵ʪѤɇʪࣛΧθͱͱ˙ϑ˵ʪʪϩ࢏
• When connecting the HR Changerwith outdoor units, be attention to the direction.
Please connect the pipes to the HR Changer referring to the label with the direction of connection on
the HR Changer.
6. How to connet Y-connector
  Ãʀɇϑʪͱ˙ʀͱʪʀϩ˝ͱʪʒͱͱθиϩ˵ǽࣛAͱʪʀϩͱθϩͱ²ŵA˵ɇ˝ʪθࡥǽࣛAͱʪʀϩͱθЇϑϩɵʪʀͱʪʀϩʪʒϑʪθʪϑ࢏
<Good Example of connection>
Indoor #1 Indoor #2
<No Good Example of connection>
AHU
࡛ øͱθϑʒЇθɇʀʀͱθʒʪʪϩʒЇʀ˵ɇ˝ʪЇθ²ŵɇЇуЇϩʭϑʪуϩʭθʪЇθʪϑࡥ˙ɇϩʪϑɇϩϩʪϩͱɞɇʒθʪʀϩͱ࢏
ŵɇʀʀͱθʒʪіʪϑϩЇцɇЇуɇЇʀ˵ɇ˝ʪЇθ²ŵʪθʪϑΧʪʀϩɇϩʪϑʒʀɇϩͱϑʒʪʒθʪʀϩͱʒЇθɇʀʀͱθʒѣ˝ЇθɇϩϑЇθ
ࣱʭϩαЇʪϩϩʪʒЇʀ˵ɇ˝ʪЇθ²ŵ࢏

18
Installing the unit
English
Installation
Method and cautions on brazing the pipe
The use of Nitrogen gas
1. Use Nitrogen gas when brazing the pipes as shown in the
picture.
2. If you don’t use Nitrogen gas when brazing the pipes, oxide may
form inside the pipe. It can cause the damage of the compressor
and valves.
ߥ࢏ ʒЇϑϩϩ˵ʪѤͱиθɇϩʪͱ˙ϩ˵ʪϩθͱ˝ʪ˝ɇϑиϩ˵ɇΧθʪϑϑЇθʪ
θʪ˝Їɇϩͱθϩͱɇϩɇߢ࢏ߢߧߥࢩ˵࣑ߣ࢏ߩߩ˙ϩߥࢩ˵࣒ͱθʪϑϑ࢏
Direction of the pipe when brazing
• Performing the brazing of the pipe should be headed
downwards or horizontally.
Keeping refrigerant pipe clean and dry
 ƟͱΧθʪЭʪϩ˙ͱθʪ˝ɇϩʪθɇϑͱθиɇϩʪθ˙θͱʪϩʪθ˝ϩ˵ʪΧΧʪࡥϩϑΧͱθϩɇϩϩͱʪʪΧϩ˵ʪθʪ˙θ˝ʪθɇϩΧΧʪ
clean, dry and sealed during installation.
Brazing the pipe
 đɇʪϑЇθʪϩ˵ɇϩϩ˵ʪθʪϑͱͱϑϩЇθʪϑʒʪϩ˵ʪΧΧʪ࢏
 đɇʪϑЇθʪϩ˵ɇϩϩ˵ʪθʪɇθʪͱ˙ͱθʪ˝ɇϩʪθɇϑɇʒΧЇθϩʪϑϩ˵ʪΧΧʪ࢏
 đɇʪϑЇθʪϩ˵ɇϩϩ˵ʪθʪϑͱʪɇ࢏
 đɇʪϑЇθʪϩͱ˙ͱͱиϩ˵ʪϑϩθЇʀϩͱи˵ʪɵθɇі˝ϩ˵ʪΧΧʪ࢏
Exposure place Exposure time Sealing type
ĮЇϩϑʒʪʪуΧͱϑЇθʪ øͱ˝ʪθϩ˵ɇͱʪͱϩ˵ Pipe pinch
Shorter than one month Taping
Inside exposure - Taping
Brazing
part
Nitrogen gas
ߣࢩߦ࢕ʀͱΧΧʪθΧΧʪ
Stop valve
Taping
Pressure regulator
ͱиʪϩʪθ

19
English
Installation
ߧ࢏ Ɗʪʪʀϩϩ˵ʪϑЇɇϩͱͱ˙ϩ˵ʪθʪ˙θ˝ʪθɇϩΧΧʪ࢏
 ÃϑЇɇϩʪϩ˵ʪ˝ɇϑϑʒʪɇʒαЇʒϑʒʪΧΧʪθʪ˙ʪθθ˝ϩͱϩ˵ʪϩ˵ʀʪϑϑɇʀʀͱθʒ˝ϩͱϩ˵ʪΧΧʪϑіʪ࢏
 ÃʒͱͱθϩʪΧʪθɇϩЇθʪͱ˙ߥߢঌA࣑ߪߨঌ࣒ɇʒ˵Їʒϩцͱ˙ߪߧϑϩ˵ʪϑϩɇʒɇθʒʀͱʒϩͱ࢏Ã˙ϑϩɇɇ˵˝˵˵Їʒϩц
condition, use one grade thicker insulator by referring to the table below. If installing in an unfavorable
conditions,use thicker one.
 ÃϑЇɇϩͱθࣱϑ˵ʪɇϩࣛθʪϑϑϩɇʀʪϩʪΧʪθɇϩЇθʪϑ˵ͱЇʒɵʪͱθʪϩ˵ɇߣߤߢঌA࣑ߤߦߪঌ࣒࢏
Pipe Outer diameter
Insulator (Cooling, Heating)
Remarks
General
[30°C (86°F), 85%]
High humidity
[30°C (86°F), over 85%]
EPDM, NBR
mm inch mm inch mm inch
øαЇʒ
pipe
ߨ࢏ߥߧ߫࢏ߧߤ ߣࢩߦߥࢩߪ ߫ ߥࢩߪ ߫ ߥࢩߪ
Heating resisting
temperature over
ߣߤߢঌA࣑ߤߦߪঌ࣒
ߣߤ࢏ߩߢߧߢ࢏ߪߢ ߣࢩߤߤ ߣߥ ߣࢩߤ ߣߥ ߣࢩߤ
Gas
Pipe
ߨ࢏ߥߧ ߣࢩߦ ߣߥ ߣࢩߤ ߣ߫ ߥࢩߦ
߫࢏ߧߤߤߧ࢏ߦ ߥࢩߪߣ ߣ߫ ߥࢩߦ ߤߧ 1
ߤߪ࢏ߧߪߦߦ࢏ߦߧ ߣߣࢩߪߣߥࢩߦ ߣ߫ ߥࢩߦ ߥߤ ߣߣࢩߦ
ߧߢ࢏ߪߢ 2ߤߧ 1ߥߪ ߣߣࢩߤ
Insulation cover pipe
Indoor
unit
Be sure to overlap
the insulation
Insulation pipe
Method and cautions on refrigerant pipe insulation
Make sure to check for gas leakage before completing the installation (hose and pipe insulation) and insulate
hoses and pipes when there is no sign of leakage.
ߣ࢏ ƟͱɇЭͱʒʀͱʒʪϑɇϩͱΧθͱɵʪϑࡥΧɇʀʪƟߣߥ࢏ߢ࣑ߣࢩߤ࢕࣒ͱθϩ˵ʀʪθʀθцͱϩθʪ
Butadien Rubber separately around each refrigerant pipe.
2. Wind insulating tape around the pipes and drain hose avoiding to
compress the insulation too much.
ߥ࢏ ϑ˵иθɇΧΧ˝ϑЇɇϩ˝ϩɇΧʪɇθͱЇʒϩ˵ʪθʪϑϩͱ˙ϩ˵ʪΧΧʪϑʪɇʒ˝ϩͱϩ˵ʪ
outdoor unit.
4. The pipes and electrical cables connecting the indoor unit with the
ͱЇϩʒͱͱθЇϩЇϑϩɵʪѣуʪʒϩͱϩ˵ʪиɇиϩ˵ϑЇϩɇɵʪʒЇʀϩϑ࢏
No gap
Ę9ŵ࣑Ɵߣߥ࢏ߢ࣑ߣࢩߤ࢕࣒
or thicker)
• Always make the seam of pipes face upwards.
• All refrigerant connection must be accessible, in order to
permit either unit maintenance or removing it completely.
Refrigerant piping works
࡛ đЇϑϩѣϩϩ˝˵ϩцɇ˝ɇϑϩ
body without any gap.
࡛ ø࢖ɇЇϑϩʪʪϩʒͱϩʲϩθʪ
ʪ˙˙ʪʀϩЇʭ˙ʪθʪʪϩʀͱϩθʪ
le corps, sans aucun espace.
࡛ ƟͱЇϑʪϑθɇʀʀͱθʒϑʒʪϑϩЇцɇЇуʒʪθʭ˙θ˝ʭθɇϩʒͱЭʪϩʲϩθʪ
ɇʀʀʪϑϑɵʪϑɇѣʒʪΧʪθʪϩϩθʪ࢖ʪϩθʪϩʪʒʪ࢖ɇΧΧɇθʪͱЇ
son retrait complet.

20
Refrigerant piping works
English
Installation
ŵʪ˙θ˝ʪθɇϩΧΧʪɵʪ˙ͱθʪkkǤϩɇʒ²ŵA˵ɇ˝ʪθͱθиϩ˵ͱЇϩkkǤ
kit and HR Changer
 ǽͱЇʀɇʀͱϩɇʀϩϩ˵ʪ˝ɇϑϑʒʪɇʒαЇʒϑʒʪΧΧʪϑɵЇϩϩ˵ʪ
pipes should not be pressed.
 Ǯ˵ʪʀͱϩɇʀϩ˝ϩ˵ʪ˝ɇϑϑʒʪɇʒ˝ɇϑϑʒʪΧΧʪࡥЇϑʪߣ˝θɇʒʪ
thicker insulator.
ŵʪ˙θ˝ʪθɇϩΧΧʪɇ˙ϩʪθkkǤϩɇʒ²ŵA˵ɇ˝ʪθ
 Ãϑϩɇϩ˵ʪ˝ɇϑϑʒʪɇʒαЇʒϑʒʪΧΧʪϑࡥʪɇЭʪߣߢ࣑ߥࢩߪ࢕࣒ͱ˙
space.
 Ǯ˵ʪʀͱϩɇʀϩ˝ϩ˵ʪ˝ɇϑϑʒʪɇʒαЇʒϑʒʪΧΧʪࡥЇϑʪߣ˝θɇʒʪ
thicker insulation.
Gas pipe
øαЇʒΧΧʪ
Insulation
Insulation
Gas pipe
ߣߢ࣑ߥࢩߪ࢕࣒
øαЇʒΧΧʪ
ߣߢ࣑ߥࢩߪ࢕࣒ ߣߢ࣑ߥࢩߪ࢕࣒
• Install the insulation not to get wider and use the adhesives on the connection part of it to prevent
moisture from entering.
• Wind the refrigerant pipe with insulation tape
if it is exposed to outside sunlight.
• Install the refrigerant pipe respecting that the
insulation does not get thinner on the bent
part or hanger of pipe.
• Add the additional insulation
if the insulation plate gets thinner.
Additional insulation
Hanger
Refrigerant pipe
insulation
ɇߥ
a
• ÃϑϩɇʪіʪɇϩʭθɇЇϑͱɇϩʒʪϑͱθϩʪαЇ࢖ʪϑ࢖ʭɇθ˝ϑϑʪΧɇϑʪϩЇϩϑʪіʪϑɇʒ˵ʭϑ˙ϑϑϩЇʭϑϑЇθ
ɇΧʽʀʪʒʪθɇʀʀͱθʒʪʪϩʒʪʀʪЇࣛʀΧͱЇθʪΧʲʀ˵ʪθ࢖˵ЇʒϩʭʒʪΧʭʭϩθʪθ࢏
• kθͱЇʪіʪϩЇцɇЇθʭ˙θ˝ʭθɇϩɇЭʪʀʒЇθЇɵɇ
ϑͱɇϩϑ࢖ʪϑϩʪуΧͱϑʭɞɇЇʽθʪʒЇͱЇθ࢏
• ÃϑϩɇʪіʪϩЇцɇЇθʭ˙θ˝ʭθɇϩʒʪɇʽθʪɞʀʪαЇʪ
࢖ϑͱɇϩͱʪϑ࢖ɇ˙˙ʪΧɇϑɇЇЭʪɇЇʒʪɇΧɇθϩʪ
ʀͱЇθɵʭʪͱЇʒЇϑЇΧΧͱθϩʒЇϩЇцɇЇ.
࡛ ͱЇϩʪіʒЇɇϩʭθɇЇϑͱɇϩϑɇΧɇαЇʪ
ʒ࢖ϑͱɇϩͱʒʪЭʪϩΧЇϑѣʪ࢏
Isolation
ϑЇΧΧʭʪϩɇθʪ
Support
Isolation des
ϩЇцɇЇуθʭ˙θ˝ʭθɇϩϑ
ɇߥ
a