Daikin RZASG71M2V1B, RZASG100M7V1B, RZASG125M7V1B, RZASG140M7V1B, RZASG100M7Y1B Installer reference guide

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Installer reference guide

Sky Air Advance-series

RZASG71M2V1B RZASG100M7V1B RZASG125M7V1B RZASG140M7V1B

RZASG100M7Y1B RZASG125M7Y1B RZASG140M7Y1B

Installer reference guide

Sky Air Advance-series

English

Page 2

Table of contents

1 General safety precautions 2

1.1 About the documentation .......................................................... 2

1.1.1 Meaning of warnings and symbols.............................. 3

1.2 For the installer.......................................................................... 3

1.2.1 General ....................................................................... 3

1.2.2 Installation site ............................................................ 3

1.2.3 Refrigerant .................................................................. 5

1.2.4 Brine............................................................................ 6

1.2.5 Water .......................................................................... 6

1.2.6 Electrical ..................................................................... 6

2 About the documentation 7

2.1 About this document.................................................................. 7

2.2 Installer reference guide at a glance ......................................... 7

3 About the box 7

3.1 Overview: About the box ........................................................... 7

3.2 Outdoor unit............................................................................... 7

3.2.1 To unpack the outdoor unit ......................................... 7

3.2.2 To handle the outdoor unit.......................................... 7

3.2.3 To remove the accessories from the outdoor unit....... 8

4 About the units and options 8

4.1 Overview: About the units and options...................................... 8

4.2 Identification .............................................................................. 8

4.2.1 Identification label: Outdoor unit ................................. 8

4.3 Combining units and options ..................................................... 8

4.3.1 Possible options for the outdoor unit........................... 8

6.5.4 To check for leaks........................................................ 18

6.5.5 To perform vacuum drying ........................................... 19

6.6 Charging refrigerant ................................................................... 19

6.6.1 About charging refrigerant ........................................... 19

6.6.2 About the refrigerant .................................................... 20

6.6.3 Precautions when charging refrigerant ........................ 20

6.6.4 Definitions: L1~L7, H1, H2........................................... 20

6.6.5 To determine the additional refrigerant amount........... 20

6.6.6 To determine the complete recharge amount.............. 21

6.6.7 Charging refrigerant: Setup.......................................... 21

6.6.8 To charge additional refrigerant ................................... 21

6.6.9 To activate/deactivate the vacuum mode field setting . 21

6.6.10 To completely recharge refrigerant .............................. 22

6.6.11 To fix the fluorinated greenhouse gases label ............. 22

6.7 Connecting the electrical wiring.................................................. 22

6.7.1 About connecting the electrical wiring.......................... 22

6.7.2 About electrical compliance ......................................... 22

6.7.3 Precautions when connecting the electrical wiring ...... 22

6.7.4 Guidelines when connecting the electrical wiring ........ 22

6.7.5 Specifications of standard wiring components............. 23

6.7.6 To connect the electrical wiring on the outdoor unit..... 23

6.8 Finishing the outdoor unit installation ......................................... 24

6.8.1 To finish the outdoor unit installation ........................... 24

6.8.2 To close the outdoor unit ............................................. 25

6.8.3 To check the insulation resistance of the compressor. 25

7 Commissioning 25

7.1 Overview: Commissioning.......................................................... 25

7.2 Precautions when commissioning .............................................. 25

7.3 Checklist before commissioning................................................. 25

7.4 To perform a test run.................................................................. 26

7.5 Error codes when performing a test run ..................................... 26

5 Preparation 8

5.1 Overview: Preparation............................................................... 8

5.2 Preparing the installation site .................................................... 8

5.2.1 Installation site requirements of the outdoor unit ........ 9

5.2.2 Additional installation site requirements of the

outdoor unit in cold climates ....................................... 10

5.3 Preparing refrigerant piping....................................................... 10

5.3.1 Refrigerant piping requirements.................................. 10

5.3.2 Refrigerant piping insulation ....................................... 12

5.4 Preparing electrical wiring ......................................................... 12

5.4.1 About preparing electrical wiring................................. 12

6 Installation 13

6.1 Overview: Installation ................................................................ 13

6.2 Opening the units ...................................................................... 13

6.2.1 About opening the units .............................................. 13

6.2.2 To open the outdoor unit............................................. 13

6.3 Mounting the outdoor unit.......................................................... 13

6.3.1 About mounting the outdoor unit................................. 13

6.3.2 Precautions when mounting the outdoor unit.............. 13

6.3.3 To provide the installation structure............................ 13

6.3.4 To install the outdoor unit............................................ 14

6.3.5 To provide drainage.................................................... 14

6.3.6 To prevent the outdoor unit from falling over .............. 14

6.4 Connecting the refrigerant piping .............................................. 15

6.4.1 About connecting the refrigerant piping ...................... 15

6.4.2 Precautions when connecting the refrigerant piping... 15

6.4.3 Guidelines when connecting the refrigerant piping..... 15

6.4.4 Pipe bending guidelines.............................................. 16

6.4.5 To flare the pipe end................................................... 16

6.4.6 To braze the pipe end................................................. 16

6.4.7 Using the stop valve and service port......................... 16

6.4.8 To connect the refrigerant piping to the outdoor unit .. 17

6.5 Checking the refrigerant piping ................................................. 18

6.5.1 About checking the refrigerant piping ......................... 18

6.5.2 Precautions when checking the refrigerant piping ...... 18

6.5.3 Checking refrigerant piping: Setup.............................. 18

8 Hand-over to the user 27

9 Maintenance and service 27

9.1 Overview: Maintenance and service .......................................... 27

9.2 Maintenance safety precautions................................................. 27

9.2.1 To prevent electrical hazards....................................... 27

9.3 Checklist for yearly maintenance of the outdoor unit ................. 28

10 Troubleshooting 28

10.1 Overview: Troubleshooting......................................................... 28

10.2 Precautions when troubleshooting ............................................. 28

11 Disposal 28

11.1 Overview: Disposal..................................................................... 28

11.2 About pump down ...................................................................... 28

11.3 To pump down............................................................................ 28

12 Technical data 29

12.1 Overview: Technical data ........................................................... 29

12.2 Service space: Outdoor unit ....................................................... 29

12.3 Piping diagram: Outdoor unit...................................................... 30

12.4 Wiring diagram: Outdoor unit ..................................................... 31

13 Glossary 32

1 General safety precautions

1.1 About the documentation

▪ The original documentation is written in English. All other

languages are translations.

▪ The precautions described in this document cover very important

topics, follow them carefully.

▪ The installation of the system, and all activities described in the

installation manual and the installer reference guide MUST be performed by an authorised installer.

Installer reference guide

RZASG71~140M_V1+Y1

Sky Air Advance-series

4P486047-1B – 2018.06

Page 3

1 General safety precautions

1.1.1 Meaning of warnings and symbols

DANGER

Indicates a situation that results in death or serious injury.

DANGER: RISK OF ELECTROCUTION

Indicates a situation that could result in electrocution.

DANGER: RISK OF BURNING

Indicates a situation that could result in burning because of extreme hot or cold temperatures.

DANGER: RISK OF EXPLOSION

Indicates a situation that could result in explosion.

WARNING

Indicates a situation that could result in death or serious injury.

WARNING: FLAMMABLE MATERIAL

CAUTION

Indicates a situation that could result in minor or moderate injury.

NOTICE

Indicates a situation that could result in equipment or property damage.

INFORMATION

Indicates useful tips or additional information.

Symbol Explanation

Before installation, read the installation and operation manual, and the wiring instruction sheet.

Before performing maintenance and service tasks, read the service manual.

For more information, see the installer and user reference guide.

1.2 For the installer

1.2.1 General

If you are NOT sure how to install or operate the unit, contact your dealer.

NOTICE

Improper installation or attachment of equipment or accessories could result in electric shock, short-circuit, leaks, fire or other damage to the equipment. Only use accessories, optional equipment and spare parts made or approved by Daikin.

WARNING

Make sure installation, testing and applied materials comply with applicable legislation (on top of the instructions described in the Daikin documentation).

CAUTION

Wear adequate personal protective equipment (protective gloves, safety glasses,…) when installing, maintaining or servicing the system.

WARNING

Tear apart and throw away plastic packaging bags so that nobody, especially children, can play with them. Possible risk: suffocation.

DANGER: RISK OF BURNING

▪ Do NOT touch the refrigerant piping, water piping or

internal parts during and immediately after operation. It could be too hot or too cold. Give it time to return to normal temperature. If you must touch it, wear protective gloves.

▪ Do NOT touch any accidental leaking refrigerant.

WARNING

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.

CAUTION

Do NOT touch the air inlet or aluminium fins of the unit.

NOTICE

▪ Do NOT place any objects or equipment on top of the

unit.

▪ Do NOT sit, climb or stand on the unit.

NOTICE

Works executed on the outdoor unit are best done under dry weather conditions to avoid water ingress.

In accordance with the applicable legislation, it might be necessary to provide a logbook with the product containing at least: information on maintenance, repair work, results of tests, stand-by periods,…

Also, at least, following information MUST be provided at an accessible place at the product:

▪ Instructions for shutting down the system in case of an emergency

▪ Name and address of fire department, police and hospital

▪ Name, address and day and night telephone numbers for

obtaining service

In Europe, EN378 provides the necessary guidance for this logbook.

1.2.2 Installation site

▪ Provide sufficient space around the unit for servicing and air

circulation.

▪ Make sure the installation site withstands the unit's weight and

vibration.

▪ Make sure the area is well ventilated. Do NOT block any

ventilation openings.

▪ Make sure the unit is level.

Do NOT install the unit in the following places:

▪ In potentially explosive atmospheres.

▪ In places where there is machinery that emits electromagnetic

waves. Electromagnetic waves may disturb the control system, and cause malfunction of the equipment.

▪ In places where there is a risk of fire due to the leakage of

flammable gases (example: thinner or gasoline), carbon fibre, ignitable dust.

▪ In places where corrosive gas (example: sulphurous acid gas) is

produced. Corrosion of copper pipes or soldered parts may cause the refrigerant to leak.

RZASG71~140M_V1+Y1 Sky Air Advance-series 4P486047-1B – 2018.06

Installer reference guide

Page 4

1 General safety precautions

Contains fluorinated greenhouse gases

tCO2eq

1000

GWP × kg

= =

GWP: xxx

R32

100

110

120

130

140

150

160

170

180

190

200

210

220

230

240

250

260

270

280

290

300

310

320

330

340

350

360

370

380

390

400

410

420

430

440

450

460

470

480

490

500

510

520

530

540

550

1.822.2

2.4

2.6

2.833.2

3.4

3.6

3.844.2

4.4

4.6

4.855.2

5.4

5.6

5.866.2

6.4

6.6

6.877.2

7.4

7.6

7.8

1.843 7.956

8.0

min

(m2)

Floor-standing unit

(c)

Wall-mounted unit

(b)

Ceiling-mounted unit

(a)

m (kg)

Instructions for equipment using R32 refrigerant

If applicable.

WARNING

▪ Do NOT pierce or burn.

▪ Do NOT use means to accelerate the defrosting

process or to clean the equipment, other than those recommended by the manufacturer.

▪ Be aware that R32 refrigerant does NOT contain an

odour.

WARNING

The appliance shall be stored so as to prevent mechanical damage and in a well-ventilated room without continuously operating ignition sources (example: open flames, an operating gas appliance or an operating electric heater) and have a room size as specified below.

NOTICE

▪ Do NOT re-use joints which have been used already.

▪ Joints made in installation between parts of refrigerant

system shall be accessible for maintenance purposes.

WARNING

Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation (for example national gas regulation) and are executed only by authorised persons.

If the installation height is… Then use the graph or table for…

<1.8m Floor-standing units

1.8≤x<2.2m Wall-mounted units

≥2.2m Ceiling-mounted units

3 Use the graph or table to determine the minimum floor area.

Installation space requirements

NOTICE

▪ Pipework shall be protected from physical damage.

▪ Installation of pipework shall be kept to a minimum.

WARNING

If appliances contain R32 refrigerant, the floor area of the room in which the appliances are installed, operated and stored MUST be larger than the minimum floor area defined in table below A (m2). This applies to:

▪ Indoor units without a refrigerant leakage sensor; in

case of indoor units with refrigerant leakage sensor, consult the installation manual

▪ Outdoor units installed or stored indoors (e.g. winter

garden, garage, machinery room)

▪ Pipework in unventilated spaces

To determine the minimum floor area

1 Determine the total refrigerant charge in the system (= factory

refrigerant charge

+ additional refrigerant amount

charged).

2 Determine which graph or table to use.

▪ For indoor units: Is the unit ceiling-mounted, wall-mounted or

floor-standing?

▪ For outdoor units installed or stored indoors, and field piping

in unventilated spaces, this depends on the installation height:

Installer reference guide

RZASG71~140M_V1+Y1

Sky Air Advance-series

4P486047-1B – 2018.06

Page 5

1 General safety precautions

Ceiling-mounted

unit

(a)

4.6 13.4

4.6 180

4.8 14.6

4.8 196

5.0 15.8

5.0 213

≤1.842 —

5.2 17.1

≤1.842 —

5.2 230

1.843 3.64

5.4 18.5

1.843 28.9

5.4 248

2.0 3.95

5.6 19.9

2.0 34.0

5.6 267

2.2 4.34

5.8 21.3

2.2 41.2

5.8 286

2.4 4.74

6.0 22.8

2.4 49.0

6.0 306

2.6 5.13

6.2 24.3

2.6 57.5

6.2 327

2.8 5.53

6.4 25.9

2.8 66.7

6.4 349

3.0 5.92

6.6 27.6

3.0 76.6

6.6 371

3.2 6.48

6.8 29.3

3.2 87.2

6.8 394

3.4 7.32

7.0 31.0

3.4 98.4

7.0 417

3.6 8.20

7.2 32.8

3.6 110

7.2 441

3.8 9.14

7.4 34.7

3.8 123

7.4 466

4.0 10.1

7.6 36.6

4.0 136

7.6 492

4.2 11.2

7.8 38.5

4.2 150

7.8 518

4.4 12.3

7.956 40.1

4.4 165

7.956 539

m (kg)

min

(m2)

4.6 20.0

4.8 21.8

5.0 23.6

≤1.842 —

5.2 25.6

1.843 4.45

5.4 27.6

2.0 4.83

5.6 29.7

2.2 5.31

5.8 31.8

2.4 5.79

6.0 34.0

2.6 6.39

6.2 36.4

2.8 7.41

6.4 38.7

3.0 8.51

6.6 41.2

3.2 9.68

6.8 43.7

3.4 10.9

7.0 46.3

3.6 12.3

7.2 49.0

3.8 13.7

7.4 51.8

4.0 15.1

7.6 54.6

4.2 16.7

7.8 57.5

4.4 18.3

7.956 59.9

Wall-mounted

unit

(b)

m (kg)

min

(m2)

Floor-standing

unit

(c)

m (kg)

min

(m2)

DANGER: RISK OF EXPLOSION

Pump down – Refrigerant leakage. If you want to pump

down the system, and there is a leak in the refrigerant circuit:

▪ Do NOT use the unit's automatic pump down function,

with which you can collect all refrigerant from the system into the outdoor unit. Possible consequence: Self-combustion and explosion of the compressor because of air going into the operating compressor.

▪ Use a separate recovery system so that the unit's

compressor does NOT have to operate.

WARNING

ALWAYS recover the refrigerant. Do NOT release them directly into the environment. Use a vacuum pump to evacuate the installation.

NOTICE

After all the piping has been connected, make sure there is no gas leak. Use nitrogen to perform a gas leak detection.

NOTICE

▪ To avoid compressor breakdown, do NOT charge more

than the specified amount of refrigerant.

▪ When the refrigerant system is to be opened,

refrigerant MUST be treated according to the applicable legislation.

m Total refrigerant charge in the system

Minimum floor area

min

(a) Ceiling-mounted unit (= Ceiling-mounted unit) (b) Wall-mounted unit (= Wall-mounted unit) (c) Floor-standing unit (= Floor-standing unit)

1.2.3 Refrigerant

If applicable. See the installation manual or installer reference guide of your application for more information.

NOTICE

Make sure refrigerant piping installation complies with applicable legislation. In Europe, EN378 is the applicable standard.

NOTICE

Make sure the field piping and connections are NOT subjected to stress.

WARNING

During tests, NEVER pressurize the product with a pressure higher than the maximum allowable pressure (as indicated on the nameplate of the unit).

WARNING

Take sufficient precautions in case of refrigerant leakage. If refrigerant gas leaks, ventilate the area immediately. Possible risks:

▪ Excessive refrigerant concentrations in a closed room

can lead to oxygen deficiency.

▪ Toxic gas may be produced if refrigerant gas comes

into contact with fire.

RZASG71~140M_V1+Y1 Sky Air Advance-series 4P486047-1B – 2018.06

WARNING

Make sure there is no oxygen in the system. Refrigerant may only be charged after performing the leak test and the vacuum drying.

▪ In case re-charge is required, refer to the nameplate of the unit. It

states the type of refrigerant and necessary amount.

▪ The unit is factory charged with refrigerant and depending on pipe

sizes and pipe lengths some systems require additional charging of refrigerant.

▪ Only use tools exclusively for the refrigerant type used in the

system, this to ensure pressure resistance and prevent foreign materials from entering into the system.

▪ Charge the liquid refrigerant as follows:

If Then

A siphon tube is present

Charge with the cylinder upright.

(i.e., the cylinder is marked with "Liquid filling siphon attached")

A siphon tube is NOT present Charge with the cylinder upside

down.

▪ Open refrigerant cylinders slowly.

▪ Charge the refrigerant in liquid form. Adding it in gas form may

prevent normal operation.

Installer reference guide

Page 6

1 General safety precautions

CAUTION

When the refrigerant charging procedure is done or when pausing, close the valve of the refrigerant tank immediately. If the valve is NOT closed immediately, remaining pressure might charge additional refrigerant.

Possible consequence: Incorrect refrigerant amount.

1.2.4 Brine

If applicable. See the installation manual or installer reference guide of your application for more information.

WARNING

The selection of the brine MUST be in accordance with the applicable legislation.

WARNING

Take sufficient precautions in case of brine leakage. If brine leaks, ventilate the area immediately and contact your local dealer.

WARNING

The ambient temperature inside the unit can get much higher than that of the room, e.g. 70°C. In case of a brine leak, hot parts inside the unit can create a hazardous situation.

WARNING

The use and installation of the application MUST comply with the safety and environmental precautions specified in the applicable legislation.

WARNING

▪ ONLY use copper wires.

▪ Make sure the field wiring complies with the applicable

legislation.

▪ All field wiring MUST be performed in accordance with

the wiring diagram supplied with the product.

▪ NEVER squeeze bundled cables and make sure they

do NOT come in contact with the piping and sharp edges. Make sure no external pressure is applied to the terminal connections.

▪ Make sure to install earth wiring. Do NOT earth the unit

to a utility pipe, surge absorber, or telephone earth. Incomplete earth may cause electrical shock.

▪ Make sure to use a dedicated power circuit. NEVER

use a power supply shared by another appliance.

▪ Make sure to install the required fuses or circuit

breakers.

▪ Make sure to install an earth leakage protector. Failure

to do so may cause electric shock or fire.

▪ When installing the earth leakage protector, make sure

it is compatible with the inverter (resistant to high frequency electric noise) to avoid unnecessary opening of the earth leakage protector.

NOTICE

Precautions when laying power wiring:

1.2.5 Water

If applicable. See the installation manual or installer reference guide of your application for more information.

NOTICE

Make sure water quality complies with EU directive 98/83EC.

1.2.6 Electrical

DANGER: RISK OF ELECTROCUTION

▪ Turn OFF all power supply before removing the

switch box cover, connecting electrical wiring or touching electrical parts.

▪ Disconnect the power supply for more than 1minute,

and measure the voltage at the terminals of main circuit capacitors or electrical components before servicing. The voltage MUST be less than 50 V DC before you can touch electrical components. For the location of the terminals, see the wiring diagram.

▪ Do NOT touch electrical components with wet hands.

▪ Do NOT leave the unit unattended when the service

cover is removed.

WARNING

If NOT factory installed, a main switch or other means for disconnection, having a contact separation in all poles providing full disconnection under overvoltage category III condition, MUST be installed in the fixed wiring.

▪ Do NOT connect wiring of different thicknesses to the

power terminal block (slack in the power wiring may cause abnormal heat).

▪ When connecting wiring which is the same thickness,

do as shown in the figure above.

▪ For wiring, use the designated power wire and connect

firmly, then secure to prevent outside pressure being exerted on the terminal board.

▪ Use an appropriate screwdriver for tightening the

terminal screws. A screwdriver with a small head will damage the head and make proper tightening impossible.

▪ Over-tightening the terminal screws may break them.

WARNING

▪ After finishing the electrical work, confirm that each

electrical component and terminal inside the electrical components box is connected securely.

▪ Make sure all covers are closed before starting up the

unit.

NOTICE

Only applicable if the power supply is three‑phase, and the compressor has an ON/OFF starting method.

If there exists the possibility of reversed phase after a momentary black out and the power goes on and off while the product is operating, attach a reversed phase protection circuit locally. Running the product in reversed phase can break the compressor and other parts.

Installer reference guide

RZASG71~140M_V1+Y1

Sky Air Advance-series

4P486047-1B – 2018.06

Page 7

2 About the documentation

2.1 About this document

Target audience

Authorised installers

INFORMATION

This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial use by lay persons.

Documentation set

This document is part of a documentation set. The complete set consists of:

▪ General safety precautions:

▪ Safety instructions that you MUST read before installing

▪ Format: Paper (in the box of the outdoor unit)

▪ Outdoor unit installation manual:

▪ Installation instructions

▪ Format: Paper (in the box of the outdoor unit)

▪ Installer reference guide:

▪ Preparation of the installation, reference data,…

▪ Format: Digital files on http://www.daikineurope.com/support-

and-manuals/product-information/

Latest revisions of the supplied documentation may be available on the regional Daikin website or via your dealer.

The original documentation is written in English. All other languages are translations.

Technical engineering 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

extranet (authentication required).

Chapter Description

Glossary Definition of terms

3 About the box

3.1 Overview: About the box

This chapter describes what you have to do after the box with the outdoor unit is delivered on-site.

It contains information about:

▪ Unpacking and handling the units

▪ Removing the accessories from the units

Keep the following in mind:

▪ At delivery, the unit MUST be checked for damage. Any damage

MUST be reported immediately to the carrier's claims agent.

▪ Bring the packed unit as close as possible to its final installation

position to prevent damage during transport.

▪ Prepare the path along which you want to bring the unit inside in

advance.

3.2 Outdoor unit

3.2.1 To unpack the outdoor unit

2.2 Installer reference guide at a glance

Chapter Description

General safety precautions

About the documentation What documentation exists for the

About the box How to unpack the units and remove

About the units and options

Preparation What to do and know before going

Installation What to do and know to install the

Commissioning What to do and know to commission the

Hand‑over to the user What to give and explain to the user

Maintenance and service How to maintain and service the units

Troubleshooting What to do in case of problems

Disposal How to dispose of the system

Technical data Specifications of the system

Safety instructions that you must read before installing

installer

their accessories

▪ How to identify the units

▪ Possible combinations of units and

options

on‑site

system

system after it is installed

3.2.2 To handle the outdoor unit

Carry the unit slowly as shown:

CAUTION

To avoid injury, do NOT touch the air inlet or aluminium fins of the unit.

RZASG71~140M_V1+Y1 Sky Air Advance-series 4P486047-1B – 2018.06

Installer reference guide

Page 8

4 About the units and options

ENERG

IJAY IAIE

ENERG

IJAY IAIE

1×

1× 2×

1×

b c

1×

3.2.3 To remove the accessories from the outdoor unit

a General safety precautions b Outdoor unit installation manual c Cable tie d Fluorinated greenhouse gases label e Energy label

f Multilingual fluorinated greenhouse gases label (only for

RZASG71)

Code Explanation

M7 Model series

V1 Power supply: 1~, 220~240 V, 50 Hz

Y1 Power supply: 3N~, 380~415 V, 50 Hz

B European market

[*] Minor model change indication

INFORMATION

This unit is not intended for use in high humidity, low ambient temperature regions. For these regions the RZAG model is recommended.

4.3 Combining units and options

4.3.1 Possible options for the outdoor unit

Refrigerant branch kit

When connecting multiple indoor units to the outdoor unit, you need one or more refrigerant branch kits. The outdoor‑indoor combination determines which and how many refrigerant branch kits to use.

Layout Model name

Twin KHRQ(M)58T

Triple KHRQ(M)58H

Double twin KHRQ(M)58T (3×)

4 About the units and options

4.1 Overview: About the units and options

This chapter contains information about:

▪ Identifying the outdoor unit

▪ Combining the outdoor unit with options

4.2 Identification

NOTICE

When installing or servicing several units at the same time, make sure NOT to switch the service panels between different models.

4.2.1 Identification label: Outdoor unit

Location

For more selection details, see the catalogues. For installation instructions, see the installation manual of the refrigerant branch kit.

Demand adaptor kit (SB.KRP58M52)

▪ Includes the additional mounting plate (EKMKSA2)

▪ Can be used for the following:

▪ Low noise: To lower the operation sound of the outdoor unit.

▪ I-demand function: To limit the power consumption from the

system (example: budget control, limit power consumption during peak moments…).

▪ For installation instructions, see the installation manual of the

demand adaptor kit.

5 Preparation

5.1 Overview: Preparation

This chapter describes what you have to do and know before going on-site.

It contains information about:

▪ Preparing the installation site

▪ Preparing the refrigerant piping

▪ Preparing the electrical wiring

Model identification

Example: R Z A S G 140 M7 V1 B [*]

Code Explanation

R Air-cooled split outdoor unit

Z Inverter

A Refrigerant R32

SG Mid-end series

71~140 Capacity class

Installer reference guide

5.2 Preparing the installation site

Do NOT install the unit in places often used as work place. In case of construction works (e.g. grinding works) where a lot of dust is created, the unit MUST be covered.

Choose an installation location with sufficient space for carrying the unit in and out of the site.

RZASG71~140M_V1+Y1

Sky Air Advance-series

4P486047-1B – 2018.06

Page 9

5 Preparation

df e

(mm)

≥

1500

≥

1500

≥

1000≥1000

≥

1000≥1000

WARNING

The appliance shall be stored in a room without continuously operating ignition sources (example: open flames, an operating gas appliance or an operating electric heater).

5.2.1 Installation site requirements of the outdoor unit

INFORMATION

5.2.2 Additional installation site requirements of the outdoor unit in cold climates

Protect the outdoor unit against direct snowfall and take care that the outdoor unit is NEVER snowed up.

Branch pipes ▪ Install the branch pipes horizontally (with a

maximum inclination of 15°) or vertically.

▪ Make the length of the branch pipes to the

indoor units as short as possible.

▪ Try to keep length of the branch pipes to

the indoor units equal.

Definitions: L1~L7, H1, H2

Pair

Triple

(a)

Twin

Double twin

(a)

a Snow cover or shed b Pedestal (minimum height=150mm) c Prevailing wind direction d Air outlet

5.3 Preparing refrigerant piping

5.3.1 Refrigerant piping requirements

INFORMATION

Also read the precautions and requirements in the "General safety precautions" chapter.

When connecting multiple indoor units to the outdoor unit, mind the following:

Refrigerant branch kit One or more refrigerant branch kits are

Upward and downward piping

Installer reference guide

required. See "4.3.1Possible options for the

outdoor unit"on page8.

Perform upward and downward piping only on the main piping line (L1).

(a) Assume that the longest line in the illustration corresponds

with the actual longest pipe, and the highest unit in the illustration corresponds with the actual highest unit.

L1 Main piping

L2~L7 Branch piping

H1 Height difference between the highest indoor unit and the

outdoor unit

H2 Height difference between the highest and the lowest

indoor unit Refrigerant branch kit

Refrigerant piping material

▪ Piping material: Phosphoric acid deoxidised seamless copper.

▪ Flare connections: Only use annealed material.

▪ Piping temper grade and thickness:

Outer diameter

Temper grade Thickness (t)

(a)

(Ø)

6.4mm (1/4")

Annealed (O) ≥0.8mm

9.5mm (3/8")

12.7mm (1/2")

15.9mm (5/8") Annealed (O) ≥1.0mm

19.1mm (3/4") Half hard (1/2H)

(a) Depending on the applicable legislation and the unit's

maximum working pressure (see "PS High" on the unit name plate), larger piping thickness might be required.

Refrigerant piping diameter

The refrigerant piping diameters must comply with the following:

Piping Diameter

L1 (pair, twin, triple, double twin) See below.

L2,L3 (twin)

L2~L4 (triple)

L4~L7 (double twin)

L2,L3 (double twin) Liquid piping: Ø9.5mm

Use the same diameters as the connections (liquid, gas) on the indoor units.

Gas piping: Ø15.9mm

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L1 (pair, twin, triple, double twin):

Existing

(a)

(b)

L1 liquid

piping

L1 gas piping

Model New

RZASG71 Standard Ø9.5mm Ø15.9mm

RZASG100~140 Standard Ø9.5mm Ø15.9mm

(a) When installing new piping, use the same diameters as

the connections on the outdoor units (i.e. standard diameters for liquid and gas piping).

(b) When reusing existing piping, you may use the size‑up or

size‑down diameters, but then capacity might decrease, and stricter piping length requirements are applicable. Assess these limitations in relation to the complete installation.

5 Preparation

RZASG71~140M_V1+Y1 Sky Air Advance-series 4P486047-1B – 2018.06

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Page 12

5 Preparation

Refrigerant piping length and height difference

The piping lengths and height differences must comply with the following requirements:

Requirement Limit

71+100 125+140

1 Minimum total one‑way piping length Pair: Limit≤L1

Twin: Limit≤L1+L3

Triple: Limit≤L1+L4

Double twin: Limit≤L1+L3+L7

2 Maximum total one‑way piping length Pair: L1≤Limit 50m (70m)

Twin and triple: L1+L2≤Limit

Double twin: L1+L2+L4≤Limit

3 Maximum allowable piping length Pair: N/A —

Twin: L1+L2+L3≤Limit 50m

Triple: L1+L2+L3+L4≤Limit 50m

Double twin: L1+L2+L3+L4+L5+L6+L7≤Limit — 50m

4 Maximum branch piping length Pair: N/A

Twin and triple: L2≤Limit

Double twin: L2+L4≤Limit

5 Maximum difference between branch lengths Pair: N/A —

Twin: L2–L3≤Limit 10m

Triple: L2–L4≤Limit 10m

Double twin:

▪ L2–L3≤Limit

▪ L4–L5≤Limit

▪ L6–L7≤Limit

▪ (L2+L4)–(L3+L7)≤Limit

6 Maximum height between indoor and outdoor Pair, twin, triple and double twin: H1≤Limit 30m

7 Maximum height between indoors Pair: N/A

Twin, triple and double twin: H2≤Limit

(a) Parenthesised figure represents the equivalent length.

Example

5m

50m (70m)

20m

— 10m

0.5m

(a)

If the system layout is as follows… Then the requirements are…

▪ RZASG125

▪ Triple:

▪ Østandard

5.3.2 Refrigerant piping insulation

▪ Use polyethylene foam as insulation material:

▪ with a heat transfer rate between 0.041 and 0.052W/mK (0.035

and 0.045kcal/mh°C)

▪ with a heat resistance of at least 120°C

▪ Insulation thickness

Ambient

temperature

≤30°C 75% to 80% RH 15mm

>30°C ≥80% RH 20mm

Humidity Minimum thickness

1 5m≤L1+L4

2 L1+L2≤50m (70m)

3 L1+L2+L3+L4≤50m

4 L2≤20m

5 L2–L4≤10m

6 H1≤30m

7 H2≤0.5m

5.4 Preparing electrical wiring

5.4.1 About preparing electrical wiring

INFORMATION

Also read the precautions and requirements in the "General safety precautions" chapter.

INFORMATION

Also read "6.7.5 Specifications of standard wiring

components"on page23.

Installer reference guide

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6 Installation

45°~90°

(4)

1×

WARNING

▪ 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.

WARNING

▪ All wiring MUST be performed by an authorised

electrician and MUST comply with the applicable legislation.

▪ Make electrical connections to the fixed wiring.

▪ All components procured on-site and all electrical

construction MUST comply with the applicable legislation.

▪ When connecting the electrical wiring

▪ When maintaining or servicing the unit

DANGER: RISK OF ELECTROCUTION

Do NOT leave the unit unattended when the service cover is removed.

6.2.2 To open the outdoor unit

DANGER: RISK OF ELECTROCUTION

DANGER: RISK OF BURNING

WARNING

ALWAYS use multicore cable for power supply cables.

6 Installation

6.1 Overview: Installation

This chapter describes what you have to do and know on-site to install the system.

Typical workflow

Installation typically consists of the following stages:

▪ Mounting the outdoor unit.

▪ Mounting the indoor units.

▪ Connecting the refrigerant piping.

▪ Checking the refrigerant piping.

▪ Charging refrigerant.

▪ Connecting the electrical wiring.

▪ Finishing the outdoor installation.

▪ Finishing the indoor installation.

INFORMATION

For installation of the indoor unit (mounting the indoor unit, connecting the refrigerant piping to the indoor unit, connecting the electrical wiring to the indoor unit …), see the installation manual of the indoor unit.

6.2 Opening the units

6.2.1 About opening the units

At certain times, you have to open the unit. Example:

▪ When connecting the refrigerant piping

RZASG71~140M_V1+Y1 Sky Air Advance-series 4P486047-1B – 2018.06

6.3 Mounting the outdoor unit

6.3.1 About mounting the outdoor unit

Typical workflow

Mounting the outdoor unit typically consists of the following stages:

1 Providing the installation structure.

2 Installing the outdoor unit.

3 Providing drainage.

4 Preventing the unit from falling over.

5 Protecting the unit against snow and wind by installing a snow

cover and baffle plates. See "Preparing installation site" in

"5Preparation"on page8.

6.3.2 Precautions when mounting the outdoor unit

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

6.3.3 To provide the installation structure

Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise.

Fix the unit securely by means of foundation bolts in accordance with the foundation drawing.

Prepare 4 sets of anchor bolts, nuts and washers (field supply) as follows:

Installer reference guide

Page 14

6 Installation

(mm)

>150

620

350

(345-355)

4× M12

≥150 mm

C D E

160 160620

36 61

262

416

595

285

279

260

161

(345~355)

a b

4× Ø6 mm

a Make sure not to cover the drain holes of the bottom plate

of the unit.

INFORMATION

The recommended height of the upper protruding part of the bolts is 20mm.

▪ If you install the unit on a frame, install a waterproof plate within

150 mm of the bottom side of the unit in order to prevent water from getting into the unit and to avoid drain water dripping (see the following figure).

INFORMATION

If necessary, you can use a drain plug kit (field supply) to prevent drain water from dripping.

NOTICE

If drain holes of the outdoor unit are covered by a mounting base or by floor surface, raise the unit to provide a free space of more than 150mm under the outdoor unit.

NOTICE

Fix the outdoor unit to the foundation bolts using nuts with resin washers (a). If the coating on the fastening area is stripped off, the nuts rust easily.

6.3.4 To install the outdoor unit

Drain holes (dimensions in mm)

A Discharge side B Distance between anchor points C Bottom frame D Drain holes E Knockout hole for snow

Snow

In regions with snowfall, snow might build up and freeze between the heat exchanger and the external plate. This might decrease the operating efficiency. To prevent this:

1 Drill (a, 4×) and remove the knockout hole (b).

6.3.5 To provide drainage

▪ Make sure that condensation water can be evacuated properly.

▪ Install the unit on a base to make sure that there is proper

drainage in order to avoid ice accumulation.

▪ Prepare a water drainage channel around the foundation to drain

waste water away from the unit.

▪ Avoid drain water flowing over the footpath, so that it does NOT

become slippery in case of ambient freezing temperatures.

Installer reference guide



2 Remove the burrs, and paint the edges and areas around the

edges using repair paint to prevent rusting.

6.3.6 To prevent the outdoor unit from falling over

In case the unit is installed in places where strong wind can tilt the unit, take following measure:

1 Prepare 2 cables as indicated in the following illustration (field

supply).

2 Place the 2 cables over the outdoor unit.

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6 Installation

a b

3 Insert a rubber sheet between the cables and the outdoor unit

to prevent the cables from scratching the paint (field supply).

4 Attach the ends of the cables and tighten them.

6.4 Connecting the refrigerant piping

6.4.1 About connecting the refrigerant piping

Before connecting the refrigerant piping

Make sure the outdoor and indoor unit are mounted.

Typical workflow

Connecting the refrigerant piping involves:

▪ Connecting the refrigerant piping to the outdoor unit

▪ Connecting the refrigerant piping to the indoor unit

▪ Installing oil traps

▪ Insulating the refrigerant piping

▪ Keeping in mind the guidelines for:

▪ Pipe bending

▪ Flaring pipe ends

▪ Brazing

▪ Using the stop valves

6.4.2 Precautions when connecting the refrigerant piping

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

DANGER: RISK OF BURNING

NOTICE

Take the following precautions on refrigerant piping into account:

▪ Avoid anything but the designated refrigerant to get

mixed into the refrigerant cycle (e.g. air).

▪ Only use R32 when adding refrigerant.

▪ Only use installation tools (e.g. manifold gauge set) that

are exclusively used for R32 installations to withstand the pressure and to prevent foreign materials (e.g. mineral oils and moisture) from mixing into the system.

▪ Install the piping so that the flare is NOT subjected to

mechanical stress.

▪ Protect the piping as described in the following table to

prevent dirt, liquid or dust from entering the piping.

▪ Use caution when passing copper tubes through walls

(see figure below).

Unit Installation period Protection method

Outdoor unit >1month Pinch the pipe

<1month Pinch or tape the pipe

Indoor unit Regardless of the

period

INFORMATION

Do NOT open the refrigerant stop valve before checking the refrigerant piping. When you need to charge additional refrigerant it is recommended to open the refrigerant stop valve after charging.

6.4.3 Guidelines when connecting the refrigerant piping

Take the following guidelines into account when connecting pipes:

▪ Coat the flare inner surface with ether oil or ester oil when

connecting a flare nut. Tighten 3 or 4 turns by hand, before tightening firmly.

CAUTION

▪ Do NOT use mineral oil on flared part.

▪ Do NOT reuse piping from previous installations.

▪ NEVER install a drier to this R32 unit to guarantee its

lifetime. The drying material may dissolve and damage the system.

RZASG71~140M_V1+Y1 Sky Air Advance-series 4P486047-1B – 2018.06

▪ ALWAYS use 2 wrenches together when loosening a flare nut.

▪ ALWAYS use a spanner and torque wrench together to tighten the

flare nut when connecting the piping. This to prevent nut cracking and leaks.

a Torque wrench b Spanner c Piping union d Flare nut

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Page 16

6 Installation

R=0.4~0.8

45°

±2

90°

±2

a b

a b c d e

c d

Piping size

(mm)

Tightening

torque (N•m)

Flare

dimensions (A)

Flare shape

(mm)

Ø9.5 33~39 12.8~13.2

Ø15.9 63~75 19.3~19.7

6.4.4 Pipe bending guidelines

Use a pipe bender for bending. All pipe bends should be as gentle as possible (bending radius should be 30~40mm or larger).

6.4.5 To flare the pipe end

CAUTION

▪ Incomplete flaring may cause refrigerant gas leakage.

▪ Do NOT re-use flares. Use new flares to prevent

refrigerant gas leakage.

▪ Use flare nuts that are included with the unit. Using

different flare nuts may cause refrigerant gas leakage.

1 Cut the pipe end with a pipe cutter.

2 Remove burrs with the cut surface facing down so that the

chips do NOT enter the pipe.

a Refrigerant piping b Part to be brazed c Taping d Manual valve e Pressure-reducing valve

f Nitrogen

▪ Do NOT use anti-oxidants when brazing pipe joints.

Residue can clog pipes and break equipment.

▪ Do NOT use flux when brazing copper-to-copper refrigerant

piping. Use phosphor copper brazing filler alloy (BCuP), which does not require flux. Flux has an extremely harmful influence on refrigerant piping systems. For instance, if chlorine based flux is used, it will cause pipe corrosion or, in particular, if the flux contains fluorine, it will deteriorate the refrigerant oil.

6.4.7 Using the stop valve and service port

To handle the stop valve

Take the following guidelines into account:

▪ The stop valves are factory closed.

▪ The following figure shows the stop valve parts required when

handling the valve.

a Cut exactly at right angles. b Remove burrs.

3 Remove the flare nut from the stop valve and put the flare nut

on the pipe.

4 Flare the pipe. Set exactly at the position as shown in the

following figure.

Flare tool for R32

(clutch type)

Conventional flare tool

Clutch type

(Ridgid-type)

Wing nut type

(Imperial-type)

A 0~0.5mm 1.0~1.5mm 1.5~2.0mm

5 Check that the flaring is properly made.

a Flare’s inner surface MUST be flawless. b The pipe end MUST be evenly flared in a perfect circle. c Make sure the flare nut is fitted.

6.4.6 To braze the pipe end

The indoor unit and outdoor unit have flare connections. Connect both ends without brazing. If brazing should be needed, take the following into account:

▪ When brazing, blow through with nitrogen to prevent creation of

large quantities of oxidised film on the inside of the piping. This film adversely affects valves and compressors in the refrigerating system and prevents proper operation.

▪ Set the nitrogen pressure to 20kPa (0.2 bar) (just enough so it

can be felt on the skin) with a pressure-reducing valve.

a Service port and service port cap b Valve stem c Field piping connection d Stem cap

▪ Keep both stop valves open during operation.

▪ Do NOT apply excessive force to the valve stem. Doing so may

break the valve body.

▪ ALWAYS make sure to secure the stop valve with a spanner, then

loosen or tighten the flare nut with a torque wrench. Do NOT place the spanner on the stem cap, as this could cause a refrigerant leak.

a Spanner b Torque wrench

▪ When it is expected that the operating pressure will be low (e.g.

when cooling will be performed while the outside air temperature is low), sufficiently seal the flare nut in the stop valve on the gas line with silicon sealant to prevent freezing.

Silicon sealant; make sure there is no gap.

Installer reference guide

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6 Installation

b d

4× Ø6 mm

To open/close the stop valve

1 Remove the stop valve cover.

2 Insert a hexagon wrench (liquid side: 4mm, gas side: 6mm)

into the valve stem and turn the valve stem:

Counterclockwise to open. Clockwise to close.

3 When the stop valve CANNOT be turned any further, stop

turning. The valve is now open/closed.

To handle the stem cap

▪ The stem cap is sealed where indicated with the arrow. Do NOT

damage it.

▪ After handling the stop valve, tighten the stem cap, and check for

refrigerant leaks.

Item Tightening torque (N∙m)

Stem cap, liquid side 13.5~16.5

Stem cap, gas side 22.5~27.5

3 If you have chosen the downwards piping route:

▪ Drill (a, 4×) and remove the knockout hole (b). ▪ Cut out the slits (c) with a metal saw.

4 Do the following:

▪ Connect the liquid pipe (a) to the liquid stop valve. ▪ Connect the gas pipe (b) to the gas stop valve.

5 Do the following:

▪ Insulate the liquid piping (a) and the gas piping (b). ▪ Wind heat insulation around the curves, and then cover it

with vinyl tape (c).

▪ Make sure the field piping does not touch any compressor

components (d).

▪ Seal the insulation ends (sealant etc.) (e).

To handle the service cap

▪ ALWAYS use a charge hose equipped with a valve depressor pin,

since the service port is a Schrader type valve.

▪ After handling the service port, tighten the service port cap, and

check for refrigerant leaks.

Item Tightening torque (N∙m)

Service port cap 11.5~13.9

6.4.8 To connect the refrigerant piping to the outdoor unit

▪ Piping length. Keep field piping as short as possible.

▪ Piping protection. Protect the field piping against physical

damage.

1 Do the following:

▪ Remove the service cover (a) with screw (b). ▪ Remove the piping intake plate (c) with screw (d).

2 Choose a piping route (a, b, c or d).

6 If the outdoor unit is installed above the indoor unit, cover the

stop valves (f, see above) with sealing material to prevent condensed water on the stop valves from moving to the indoor unit.

NOTICE

Any exposed piping might cause condensation.

7 Reattach the service cover and the piping intake plate.

8 Seal all gaps (example: a) to prevent snow and small animals

from entering the system.

RZASG71~140M_V1+Y1 Sky Air Advance-series 4P486047-1B – 2018.06

Installer reference guide

Page 18

6 Installation

b d e h

d e

R32

NOTICE

Do not block the air vents. This could affect air circulation inside the unit.

WARNING

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.

NOTICE

Precautions when making knockout holes:

▪ Avoid damaging the casing.

▪ After making the knockout holes, we recommend you

remove the burrs and paint the edges and areas around the edges using repair paint to prevent rusting.

▪ When passing electrical wiring through the knockout

holes, wrap the wiring with protective tape to prevent damage.

6.5.2 Precautions when checking the refrigerant piping

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

NOTICE

Use a 2-stage vacuum pump with a non-return valve that can evacuate to a gauge pressure of −⁠100.7 kPa (−⁠1.007 bar)(5 Torr absolute). Make sure the pump oil does not flow oppositely into the system while the pump is not working.

NOTICE

Use this vacuum pump for R32 exclusively. Using the same pump for other refrigerants may damage the pump and the unit.

NOTICE

▪ Connect the vacuum pump to both the service port of

the gas stop valve and the service port of the liquid stop valve to increase efficiency.

▪ Make sure that the gas stop valve and liquid stop valve

are firmly closed before performing the leak test or vacuum drying.

6.5.3 Checking refrigerant piping: Setup

a Knockout hole b Burr c Sealant etc.

NOTICE

Make sure to open the stop valves after installing the refrigerant piping and performing vacuum drying. Running the system with the stop valves closed may break the compressor.

6.5 Checking the refrigerant piping

A Setup in case of pair

6.5.1 About checking the refrigerant piping

The outdoor unit's internal refrigerant piping has been factory tested for leaks. You only have to check the outdoor unit's external refrigerant piping.

Before checking the refrigerant piping

Make sure the refrigerant piping is connected between the outdoor unit and the indoor unit.

Typical workflow

Checking the refrigerant piping typically consists of the following stages:

1 Checking for leaks in the refrigerant piping.

2 Performing vacuum drying to remove all moisture, air or

nitrogen from the refrigerant piping.

If there is a possibility of moisture being present in the refrigerant piping (for example, water may have entered the piping), first carry out the vacuum drying procedure below until all moisture has been removed.

6.5.4 To check for leaks

B Setup in case of twin

a Pressure gauge b Nitrogen c Refrigerant d Weighing machine e Vacuum pump

f Stop valve g Main piping h Refrigerant branch kit

i Branch piping

NOTICE

Do NOT exceed the unit's maximum working pressure (see "PS High" on the unit name plate).

Installer reference guide

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6 Installation

NOTICE

Make sure to use a recommended bubble test solution from your wholesaler. Do not use soap water, which may cause cracking of flare nuts (soap water may contain salt, which absorbs moisture that will freeze when the piping gets cold), and/or lead to corrosion of flared joints (soap water may contain ammonia which causes a corrosive effect between the brass flare nut and the copper flare).

1 Charge the system with nitrogen gas up to a gauge pressure of

at least 200 kPa (2 bar). It is recommended to pressurize to 3000kPa (30bar) in order to detect small leaks.

2 Check for leaks by applying the bubble test solution to all

connections.

3 Discharge all nitrogen gas.

6.5.5 To perform vacuum drying

NOTICE

▪ Connect the vacuum pump to both the service port of

the gas stop valve and the service port of the liquid stop valve to increase efficiency.

▪ Make sure that the gas stop valve and liquid stop valve

are firmly closed before performing the leak test or vacuum drying.

1 Vacuum the system until the pressure on the manifold indicates

−0.1MPa (−1bar).

2 Leave as is for 4-5minutes and check the pressure:

If the pressure… Then…

Does not change There is no moisture in the

system. This procedure is finished.

Increases There is moisture in the

system. Go to the next step.

3 Vacuum the system for at least 2hours to a manifold pressure

of −0.1MPa (−1bar).

4 After turning the pump OFF, check the pressure for at least

1hour.

5 If you do NOT reach the target vacuum or CANNOT maintain

the vacuum for 1hour, do the following:

▪ Check for leaks again. ▪ Perform vacuum drying again.

NOTICE

Make sure to open the stop valves after installing the refrigerant piping and performing vacuum drying. Running the system with the stop valves closed may break the compressor.

What When

Charging additional refrigerant When the total liquid piping

length is more than specified (see later).

Completely recharging refrigerant Example:

▪ When relocating the system.

▪ After a leak.

Charging additional refrigerant

Before charging additional refrigerant, make sure the outdoor unit's

external refrigerant piping is checked (leak test, vacuum drying).

INFORMATION

Depending on the units and/or the installation conditions, it

might be necessary to connect electrical wiring before you

can charge refrigerant.

Typical workflow – Charging additional refrigerant typically consists of the following stages:

1 Determining if and how much you have to charge additionally.

2 If necessary, charging additional refrigerant.

3 Filling in the fluorinated greenhouse gases label, and fixing it to

the inside of the outdoor unit.

Completely recharging refrigerant

Before completely recharging refrigerant, make sure the following is done:

1 All refrigerant is recovered from the system.

2 The outdoor unit's external refrigerant piping is checked (leak

test, vacuum drying).

3 Vacuum drying on the outdoor unit's internal refrigerant piping is

performed.

NOTICE

Before completely recharging, perform vacuum drying on

the outdoor unit's internal refrigerant piping as well.

NOTICE

To perform vacuum drying or a complete recharge of the

outdoor unit’s internal refrigerant piping it is necessary to

activate the vacuum mode (see "6.6.9 To activate/

deactivate the vacuum mode field setting" on page 21)

which will open required valves in the refrigerant circuit so

the vacuuming process or recharge of refrigerant can be

done properly.

▪ Before vacuum drying or recharging, activate field

setting "vacuum mode".

▪ After finishing vacuum drying or recharging, deactivate

field setting "vacuum mode".

INFORMATION

After opening the stop valve, it is possible that the pressure in the refrigerant piping does NOT increase. This might be caused by e.g. the closed state of the expansion valve in the outdoor unit circuit, but does NOT present any problem for correct operation of the unit.

6.6 Charging refrigerant

6.6.1 About charging refrigerant

The outdoor unit is factory charged with refrigerant, but in some cases the following might be necessary:

RZASG71~140M_V1+Y1 Sky Air Advance-series 4P486047-1B – 2018.06

WARNING

Some sections of the refrigerant circuit may be isolated

from other sections caused by components with specific

functions (e.g. valves). The refrigerant circuit therefore

features additional service ports for vacuuming, pressure

relief or pressurizing the circuit.

In case it is required to perform brazing on the unit, ensure

that there is no pressure remaining inside the unit. Internal

pressures need to be released with ALL the service ports

indicated on the figures below opened. The location is

depending on model type.

Location of service ports:

Installer reference guide

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6 Installation

b c

WARNING

The refrigerant inside the unit is mildly flammable, but normally does NOT leak. If the refrigerant leaks in the room and comes in contact with fire from a burner, a heater, or a cooker, this may result in fire, or the formation of a harmful gas.

Turn off any combustible heating devices, ventilate the room, and contact the dealer where you purchased the unit.

Do NOT use the unit until a service person confirms that the part from which the refrigerant leaked has been repaired.

6.6.3 Precautions when charging refrigerant

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

a Internal service port b Stop valve with service port (liquid) c Stop valve with service port (gas)

Typical workflow – Completely recharging refrigerant typically consists of the following stages:

1 Determining how much refrigerant to charge.

2 Charging refrigerant.

3 Filling in the fluorinated greenhouse gases label, and fixing it to

the inside of the outdoor unit.

6.6.2 About the refrigerant

This product contains fluorinated greenhouse gases. Do NOT vent gases into the atmosphere.

Refrigerant type: R32

Global warming potential (GWP) value: 675

WARNING: FLAMMABLE MATERIAL

The refrigerant inside this unit is mildly flammable.

WARNING

The appliance shall be stored in a room without continuously operating ignition sources (example: open flames, an operating gas appliance or an operating electric heater).

WARNING

▪ Do NOT pierce or burn refrigerant cycle parts.

Installer reference guide

▪ Do NOT use cleaning materials or means to accelerate

the defrosting process other than those recommended by the manufacturer.

▪ Be aware that the refrigerant inside the system is

odourless.

6.6.4 Definitions: L1~L7, H1, H2

(a)

Pair

(a)

Triple

(a) Assume that the longest line in the illustration corresponds

with the actual longest pipe, and the highest unit in the illustration corresponds with the actual highest unit.

L1 Main piping

L2~L7 Branch piping

H1 Height difference between the highest indoor unit and the

outdoor unit

H2 Height difference between the highest and the lowest

indoor unit Refrigerant branch kit

(a)

Twin

Double twin

(a)

6.6.5 To determine the additional refrigerant amount

To determine if adding additional refrigerant is necessary

If Then

(L1+L2+L3+L4+L5+L6+L7)≤ 30m (chargeless length)

(L1+L2+L3+L4+L5+L6+L7)> 30m (chargeless length)

You do not have to add additional refrigerant.

You must add additional refrigerant.

For future servicing, encircle the selected amount in the tables below.

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6 Installation

L1 (m)

L2=7 m (Ø6.4 mm)

L3=5 m (Ø6.4 mm)

L1=35 m (Ø9.5 mm)

RZASG100

L2=15 m (Ø6.4 mm)

L3=12 m (Ø6.4 mm)

L4=17 m (Ø6.4 mm)

L1=5 m (Ø9.5 mm)

RZASG125

To determine the additional refrigerant amount (R in kg) (in case of pair)

To determine the additional refrigerant amount (R in kg) (in case of twin, triple and double twin)

1 Determine R1 and R2.

R1: 0.35kg 0.7kg 1.05kg

R2: 0.2kg 0.4kg 0.6kg 0.8kg

2 Determine the additional refrigerant amount: R=R1+R2.

Examples

6.6.6 To determine the complete recharge

To determine the complete recharge amount (kg)

RZASG71 2.45kg 2.8kg 3.15kg

RZASG100-125 2.6kg 2.95kg 3.3kg

RZASG140 2.9kg 3.25kg 3.6kg

RZASG71~140M_V1+Y1 Sky Air Advance-series 4P486047-1B – 2018.06

INFORMATION

Piping length is the largest one-way length of liquid piping.

L1: 30~40m 40~50m

R: 0.35kg 0.7kg

If Then

G1>30m Use the table below to determine

G1≤30m

(and G1+G2>30m)

R1=0.0kg.

Use the table below to determine R2.

Length (total length of liquid piping−30m)

0~10m 10~20m 20~30m 30~40m 40~45m

(a)

(a) Only for RZASG100~140. (b) Only for RZASG100+125.

1.4kg

(a)

1kg

Layout Additional refrigerant amount (R)

Case: Twin, standard liquid pipe size

1 G1 Total Ø9.5 => G1=35m

G2 Total Ø6.4 => G2=7+5=12m

2 Case: G1>30m

R1 Length=G1−30m=5m

=> R1=0.35kg

R2 Length=G2=12m

=> R2=0.4kg

3 R R=R1+R2=0.35+0.4=0.75kg

Case: Triple, standard liquid pipe size

1 G1 Total Ø9.5 => G1=5m

G2 Total Ø6.4 => G2=15+12+17=44m

2 Case: G1≤30m (and G1+G2>30m)

R1 R1=0.0kg

R2 Length=G1+G2−30m =

5+44−30=19m

=> R2=0.4kg

3 R R=R1+R2=0.0+0.4=0.4kg

amount

Model Length

5~30m 30~40m 40~50m

(a) Length=L1 (pair); L1+L2 (twin, triple); L1+L2+L4 (double

twin)

(a)

6.6.7 Charging refrigerant: Setup

See "6.5.3Checking refrigerant piping: Setup"on page18.

6.6.8 To charge additional refrigerant

WARNING

▪ Only use R32 as refrigerant. Other substances may

cause explosions and accidents.

▪ R32 contains fluorinated greenhouse gases. Its global

warming potential (GWP) value is 675. Do NOT vent these gases into the atmosphere.

▪ When charging refrigerant, ALWAYS use protective

gloves and safety glasses.

CAUTION

To avoid compressor breakdown, do NOT charge more than the specified amount of refrigerant.

Prerequisite: Before charging refrigerant, make sure the refrigerant piping is connected and checked (leak test and vacuum drying).

1 Connect the refrigerant cylinder to both the service port of the

gas stop valve and the service port of the liquid stop valve.

2 Charge the additional refrigerant amount.

(b)

3 Open the stop valves.

If pump down is needed in case of dismantling or relocating the system, see "11.3To pump down"on page28 for more details.

6.6.9 To activate/deactivate the vacuum mode field setting

Description

To perform vacuum drying or a complete recharge of the outdoor unit’s internal refrigerant piping it is necessary to activate the vacuum mode which will open required valves in the refrigerant circuit so the vacuuming process or recharge of refrigerant can be done properly.

To activate vacuum mode:

Activating the vacuum mode is done by operating the push buttons BS* on the PCB (A1P) and reading the feedback from the 7‑segment displays.

Operate the switches and push buttons with an insulated stick (such as a closed ball-point pen) to avoid touching of live parts.

1 When the unit is powered on and not running, hold down the

BS1 pushbutton for 5 seconds.

Result: You will reach the setting mode, the 7 segment display will show '200'.

2 Press the BS2 button until you reach page 2–28.

3 When 2–28 is reached, press the BS3 button once.

4 Change the setting to '1' by pressing the BS2 button once .

5 Push the BS3 button once

6 When the display is not blinking anymore, press the BS3 button

again to activate vacuum mode.

To deactivate vacuum mode:

After charging or vacuuming the unit, please deactivate the vacuum mode by changing the setting back to '0'.

Make sure to reattach the electronic component box cover and to install the front cover after the job is finished.

Installer reference guide

Page 22

6 Installation

Contains fluorinated greenhouse gases

tCO2eq

GWP × kg

1000

= =

GWP: XXX

RXXX

d e

NOTICE

Make sure that all outside panels, except for the service cover on the electrical component box, are closed while working.

Close the lid of the electrical component box firmly before turning on the power.

6.6.10 To completely recharge refrigerant

WARNING

▪ Only use R32 as refrigerant. Other substances may

cause explosions and accidents.

▪ R32 contains fluorinated greenhouse gases. Its global

warming potential (GWP) value is 675. Do NOT vent these gases into the atmosphere.

▪ When charging refrigerant, ALWAYS use protective

gloves and safety glasses.

CAUTION

To avoid compressor breakdown, do NOT charge more than the specified amount of refrigerant.

Prerequisite: Before completely recharging refrigerant, make sure the system is pumped down, the outdoor unit's external refrigerant piping is checked (leak test, vacuum drying) and vacuum drying on the outdoor unit's internal refrigerant piping is performed.

1 If not already done (for vacuum drying of the unit), activate the

vacuum mode (see "6.6.9 To activate/deactivate the vacuum

mode field setting"on page21)

2 Connect the refrigerant cylinder to the service port of the liquid

stop valve.

3 Open the liquid stop valve.

4 Charge the complete refrigerant amount.

5 Deactivate the vacuum mode (see "6.6.9To activate/deactivate

the vacuum mode field setting"on page21).

6 Open the gas stop valve.

6.6.11 To fix the fluorinated greenhouse gases label

1 Fill in the label as follows:

2 Fix the label on the inside of the outdoor unit. There is a

dedicated place for it on the wiring diagram label.

6.7 Connecting the electrical wiring

6.7.1 About connecting the electrical wiring

Typical workflow

Connecting the electrical wiring typically consists of the following stages:

1 Making sure the power supply system complies with the

electrical specifications of the units.

2 Connecting the electrical wiring to the outdoor unit.

3 Connecting the electrical wiring to the indoor units.

4 Connecting the main power supply.

6.7.2 About electrical compliance

RZASG71M2V1B + RZASG100~140M7V1B

Equipment complying with EN/IEC 61000‑3‑12 (European/ International Technical Standard setting the limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >16A and ≤75A per phase.).

RZASG100~140M7Y1B

Equipment complying with EN/IEC 61000‑3‑2 (European/ International Technical Standard setting the limits for harmonic currents produced by equipment connected to public low-voltage systems with input current ≤16A per phase.).

6.7.3 Precautions when connecting the electrical wiring

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

DANGER: RISK OF ELECTROCUTION

WARNING

ALWAYS use multicore cable for power supply cables.

CAUTION

For use of units in applications with temperature alarm settings it is recommended to foresee a delay of 10 minutes for signalling the alarm in case the alarm temperature is exceeded. The unit may stop for several

a If a multilingual fluorinated greenhouse gases label is

delivered with the unit (see accessories), peel off the applicable language and stick it on top of a.

b Factory refrigerant charge: see unit name plate c Additional refrigerant amount charged d Total refrigerant charge e Greenhouse gas emissions of the total refrigerant charge

expressed as tonnes CO2 equivalent

f GWP = Global warming potential

minutes during normal operation for "defrosting the unit", or when in "thermostat stop" operation.

WARNING

Do not interchange the supply conductors L and the neutral conductor N.

6.7.4 Guidelines when connecting the electrical

NOTICE

In Europe, the greenhouse gas emissions of the total refrigerant charge in the system (expressed as tonnes CO equivalent) is used to determine the maintenance intervals. Follow the applicable legislation.

Formula to calculate the greenhouse gas emissions:

GWP value of the refrigerant × Total refrigerant charge [in kg] / 1000

Installer reference guide

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.

wiring

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Page 23

b a

a Stranded conductor wire

AA´

A´

c b ba c

a b

1~ 50 Hz

220-240 V

3N~ 50 Hz 380-415 V

V1 Y1

L1 L2 L3

b Round crimp-style terminal

▪ Use the following methods for installing wires:

Wire type Installation method

Single-core wire

a Curled single-core wire

b Screw

c Flat washer

6 Installation

Wire type Installation method

Stranded conductor wire with round crimp-style terminal

a Terminal

b Screw

c Flat washer

O Allowed

X NOT allowed

Tightening torques

Item Tightening torque (N•m)

M4 (X1M) 1.2~1.8

M4 (earth) 1.2~1.4

M5 (X1M) 2.0~3.0

M5 (earth) 2.4~2.9

NOTICE

If limited space is available at the wire terminal, use bended crimp-style ring terminals.

6.7.5 Specifications of standard wiring components

Component V1 Y1

71 100 125 140 100 125 140

Power supply cable MCA

(a)

18.2A 22.7A 29.2A 28.5A 14.9A 15.7A 15.4A

Voltage range 220~240V 380~415V

Phase 1~ 3N~

Frequency 50Hz

Wire sizes Must comply with applicable legislation

Interconnection cables Minimum cable section of 2.5 mm² and applicable for 230 V

Recommended field fuse 20A 25A 32A 16A

Earth leakage circuit breaker Must comply with applicable legislation

(a) MCA=Minimum circuit ampacity. Stated values are maximum values (see electrical data of combination with indoor units for exact values).

6.7.6 To connect the electrical wiring on the outdoor unit

NOTICE

▪ Follow the wiring diagram (delivered with the unit,

located at the inside of the service cover).

▪ Make sure the electrical wiring does NOT obstruct

proper reattachment of the service cover.

1 Remove the service cover. See "6.2.2 To open the outdoor

unit"on page13.

2 Strip insulation (20mm) from the wires.

3 Connect the interconnection cables and power supply as

follows:

RZASG71~140M_V1+Y1 Sky Air Advance-series 4P486047-1B – 2018.06

a Strip wire end to this point b Excessive strip length may cause electrical shock or

leakage.

I, II, III, IV Pair, twin, triple, double twin

Installer reference guide

Page 24

6 Installation

e f

100~140

a b c d e

A B

M, S Master, slave

a Interconnection cables b Power supply cable c Earth leakage circuit breaker d Fuse e User interface

a Switch box b Stop valve attachment plate c Earth d Cable tie e Interconnection cable

f Power supply cable

4 Fix the cables (power supply and interconnection cable) with a

cable tie to the stop valve attachment plate and route the wiring according to the illustration above.

5 Route the wiring through the frame and connect the wiring to

the frame at the knockout hole.

Routing through

Choose one of the 3 possibilities:

the frame

Connecting to the frame

When cables are routed from the unit, a protection sleeve for the conduits (PG insertions) can be inserted at the knockout hole.

When you do not use a wire conduit, protect the wires with vinyl tubes to prevent the edge of the knockout hole from cutting the wires.

A Inside of the outdoor unit

B Outside of the outdoor unit

a Wire

b Bush

c Nut

d Frame

e Hose

6 Reattach the service cover. See "6.8.2 To close the outdoor

unit"on page25.

7 Connect an earth leakage circuit breaker and fuse to the power

supply line.

6.8 Finishing the outdoor unit installation

6.8.1 To finish the outdoor unit installation

1 Insulate and fix the refrigerant piping and interconnection cable

as follows:

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

a Power supply cable

2 Install the service cover.

f Finishing tape

b Interconnection cable

Installer reference guide

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7 Commissioning

1×

6.8.2 To close the outdoor unit

6.8.3 To check the insulation resistance of the compressor

NOTICE

If, after installation, refrigerant accumulates in the compressor, the insulation resistance over the poles can drop, but if it is at least 1 MΩ, then the unit will not break down.

▪ Use a 500V mega-tester when measuring insulation.

▪ Do not use a mega-tester for low-voltage circuits.

1 Measure the insulation resistance over the poles.

If Then

≥1MΩ Insulation resistance is OK. This procedure

is finished.

<1MΩ Insulation resistance is not OK. Go to the

next step.

2 Turn ON the power and leave it on for 6hours.

Result: The compressor will heat up and evaporate any

refrigerant in the compressor.

3 Measure the insulation resistance again.

7 Commissioning

7.1 Overview: Commissioning

This chapter describes what you have to do and know to commission the system after it is installed.

Typical workflow

Commissioning typically consists of the following stages:

1 Checking the "Checklist before commissioning".

2 Performing a test run for the system.

RZASG71~140M_V1+Y1 Sky Air Advance-series 4P486047-1B – 2018.06

7.2 Precautions when commissioning

INFORMATION

During the first running period of the unit, the required power may be higher than stated on the nameplate of the unit. This phenomenon is caused by the compressor, that needs a continuous run time of 50 hours before reaching smooth operation and stable power consumption.

NOTICE

Before starting up the system, the unit MUST be energised for at least 6hours. The crankcase heater needs to heat up the compressor oil to avoid oil shortage and compressor breakdown during startup.

NOTICE

NEVER operate the unit without thermistors and/or pressure sensors/switches. Burning of the compressor might result.

NOTICE

Do NOT operate the unit until the refrigerant piping is complete (when operated this way, the compressor will break).

NOTICE

Cooling operation mode. Perform the test run in cooling

operation mode so that stop valves failing to open can be detected. Even if the user interface was set to heating operation mode, the unit will run in cooling operation mode during 2‑3 minutes (although the user interface will display the heating icon), and then automatically switch to heating operation mode.

NOTICE

If you cannot operate the unit in test run, see "7.5Error

codes when performing a test run"on page26.

WARNING

If the panels on the indoor units are not installed yet, make sure to power OFF the system after finishing the test run. To do so, turn OFF operation via the user interface. Do NOT stop operation by turning OFF the circuit breakers.

7.3 Checklist before commissioning

After the installation of the unit, first check the following items. Once all below checks are fulfilled, the unit MUST be closed, ONLY then can the unit be powered up.

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

The indoor units are properly mounted.

In case a wireless user interface is used: The indoor unit decoration panel with infrared receiver is installed.

The outdoor unit is properly mounted.

The following field wiring has been carried out according to this document and the applicable legislation:

▪ Between the local supply panel and the outdoor unit

▪ Between the outdoor unit and the indoor unit (master)

▪ Between the indoor units

There are NO missing phases or reversed phases.

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

Installer reference guide

Page 26

7 Commissioning

A B

Cool

Set to

28°C

Return Setting

Service Settings 1/3

Test Operation

Maintenance Contact Field Settings Demand Min Setpoints Differential Group Address

Cool

Return Setting

Test Operation

Return Setting

Air Volume/direction

Air Volume Direction

Position 0

Low

Return Setting

Air Volume/direction

Air Volume Direction

Low

Position 0

Return Setting

Service Settings 1/3

Test Operation

Maintenance Contact Field Settings Demand Min Setpoints Differential Group Address

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.

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.

The stop valves (gas and liquid) on the outdoor unit are fully open.

7.4 To perform a test run

This task is only applicable when using the BRC1E52 user interface.

▪ When using BRC1E51, see the installation manual of the user

interface.

▪ When using BRC1D, see the service manual of the user interface.

NOTICE

Do not interrupt the test run.

# Action Result

3 Select Test Operation.

4 Press. Test Operation is

displayed on the home menu.

5 Press within 10seconds. Test run starts.

3 Check operation for 3minutes.

4 Check operation of the airflow direction.

# Action Result

1 Press.

INFORMATION

Backlight. To perform an ON/OFF action on the user

interface, the backlight does not need to be lit. For any other action, it needs to be lit first. The backlight is lit for ±30seconds when you press a button.

1 Perform introductory steps.

# Action

1 Open the liquid stop valve (A) and gas stop valve (B)

by removing the stem cap and turning counterclockwise with a hex wrench until it stops.

2 Close the service cover to prevent electric shocks.

3 Turn ON power for at least 6hours before starting

operation to protect the compressor.

4 On the user interface, set the unit to cooling operation

mode.

2 Start the test run.

# Action Result

1 Go to the home menu.

2 Select Position 0.

3 Change the position. If the airflow flap of the

indoor unit moves, operation is OK.

If not, operation is not OK.

4 Press.

The home menu is displayed.

5 Stop the test run.

# Action Result

1 Press at least 4seconds.

The Service Settings menu is displayed.

2 Select Test Operation.

3 Press. The unit returns to normal

operation, and the home menu is displayed.

2 Press at least 4seconds. The Service Settings menu

Installer reference guide

is displayed.

7.5 Error codes when performing a test run

If the installation of the outdoor unit has NOT been done correctly, the following error codes may be displayed on the user interface:

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8 Hand-over to the user

A1P

C–

C+

C–

C+

V1 Y1

Error code Possible cause

Nothing displayed

(the currently set temperature is not displayed)

E3, E4 or L8 ▪ The stop valves are closed.

E7 There is a missing phase in case of three-

L4 The air inlet or air outlet is blocked.

U0 The stop valves are closed.

U2 ▪ There is a voltage imbalance.

U4 or UF The inter-unit branch wiring is not correct.

UA The outdoor and indoor unit are

NOTICE

▪ The reversed phase protection detector of this product

only functions when the product starts up. Consequently reversed phase detection is not performed during normal operation of the product.

▪ The reversed phase protection detector is designed to

stop the product in the event of an abnormality when the product is started up.

▪ Replace 2 of the 3 phases (L1, L2, and L3) during

reverse-phase protection abnormality.

▪ The wiring is disconnected or there is a

wiring error (between power supply and outdoor unit, between outdoor unit and indoor units, between indoor unit and user interface).

▪ The fuse on the outdoor unit PCB has

blown out.

▪ The air inlet or air outlet is blocked.

phase power supply units.

Note: Operation will be impossible. Turn OFF the power, recheck the wiring, and switch two of the three electrical wires.

▪ There is a missing phase in case of

three-phase power supply units. Note: Operation will be impossible. Turn OFF the power, recheck the wiring, and switch two of the three electrical wires.

incompatible.

NOTICE

Formula to calculate the greenhouse gas emissions:

GWP value of the refrigerant × Total refrigerant charge [in kg] / 1000

9.1 Overview: Maintenance and service

This chapter contains information about:

▪ The yearly maintenance of the outdoor unit

9.2 Maintenance safety precautions

DANGER: RISK OF ELECTROCUTION

DANGER: RISK OF BURNING

NOTICE:Risk of electrostatic discharge

Before performing any maintenance or service work, touch a metal part of the unit in order to eliminate static electricity and to protect the PCB.

9.2.1 To prevent electrical hazards

When performing service to inverter equipment:

1 Do not open the electrical component box cover for 10 minutes

after the power supply is turned off.

2 Measure the voltage between terminals on the terminal block

for power supply with a tester and confirm that the power supply is shut off. In addition, measure points as shown in the figure below, with a tester and confirm that the voltage of the capacitor in the main circuit is less than 50VDC.

8 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.

9 Maintenance and service

NOTICE

Maintenance MUST be done by an authorized installer or service agent.

We recommend performing maintenance at least once a year. However, applicable legislation might require shorter maintenance intervals.

RZASG71~140M_V1+Y1 Sky Air Advance-series 4P486047-1B – 2018.06

 

3 To prevent damaging the PCB, touch a non-coated metal part

to eliminate static electricity before pulling out or plugging in connectors.

4 Pull out junction connectors for the fan motors in the outdoor

unit before starting service operation on the inverter equipment. Be careful not to touch the live parts. (If a fan rotates due to strong wind, it may store electricity in the capacitor or in the main circuit and cause electric shock.)

Junction connectors X106A for M1F

X107A for M2F

5 After the service is finished, plug the junction connector back in.

Otherwise the malfunction code E7 will be displayed and normal operation will not be performed.

For details refer to the wiring diagram labelled on the back of the service cover.

Installer reference guide

Page 28

10 Troubleshooting

6 Never directly connect power supply cables to compressors (U,

V, W). This can result in a compressor burnout.

9.3 Checklist for yearly maintenance of the outdoor unit

Check the following at least once a year:

▪ Heat exchanger

The heat exchanger of the outdoor unit can get blocked up due to dust, dirt, leaves, etc. It is recommended to clean the heat exchanger yearly. A blocked heat exchanger can lead to too low pressure or too high pressure leading to worse performance.

10 Troubleshooting

10.1 Overview: Troubleshooting

In case of problems:

▪ See "7.5Error codes when performing a test run"on page26.

▪ See the service manual.

This section provides useful information for diagnosing and correcting certain problems which may occur with the unit. This troubleshooting and related corrective actions may only be carried out by the installer or service agent.

Before troubleshooting

Carry out a thorough visual inspection of the unit and look for obvious defects such as loose connections or defective wiring.

10.2 Precautions when troubleshooting

WARNING

▪ When carrying out an inspection on the switch box of

the unit, ALWAYS make sure that the unit is disconnected from the mains. Turn off the respective circuit breaker.

▪ When a safety device was activated, stop the unit and

find out why the safety device was activated before resetting it. NEVER shunt safety devices or change their values to a value other than the factory default setting. If you are unable to find the cause of the problem, call your dealer.

DANGER: RISK OF ELECTROCUTION

WARNING

Prevent hazards due to inadvertent resetting of the thermal cut-out: power to this appliance MUST NOT be supplied through an external switching device, such as a timer, or connected to a circuit that is regularly turned ON and OFF by the utility.

DANGER: RISK OF BURNING

11 Disposal

NOTICE

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.

11.1 Overview: Disposal

Typical workflow

Disposing of the system typically consists of the following stages:

1 Pumping down the system.

2 Bringing the system to a specialized treatment facility.

INFORMATION

For more details, see the service manual.

11.2 About pump down

The unit is equipped with an automatic pump down function, with which you can collect all refrigerant from the system into the outdoor unit.

NOTICE

The outdoor unit is equipped with a low pressure switch or a low pressure sensor to protect the compressor by turning it OFF. NEVER short-circuit the low pressure switch during pump down operation.

11.3 To pump down

DANGER: RISK OF EXPLOSION

Pump down – Refrigerant leakage. If you want to pump

down the system, and there is a leak in the refrigerant circuit:

▪ Do NOT use the unit's automatic pump down function,

▪ Use a separate recovery system so that the unit's

compressor does NOT have to operate.

CAUTION

Do not use the unit's automatic pump down function if the total piping length exceeds the chargeless length. A fraction of the refrigerant could be left in the circuit.

1 Turn ON the main power supply switch.

2 Make sure the liquid stop valve and the gas stop valve are

open.

3 Press the pump down button (BS2) for at least 8seconds. BS2

is located on the PCB in the outdoor unit (see wiring diagram).

Result: The compressor and outdoor unit fan start automatically, and the indoor unit fan might start automatically.

4 ±2 minutes after the compressor started, close the liquid stop

valve. If it is not closed properly during compressor operation,

the system cannot be pumped down.

5 Once the compressor stops (after 2~5 minutes), close the gas

stop valve within 3 minutes after the compressor has stopped.

Result: The pump down operation is finished. The user

interface may display " " and the indoor pump may continue operating. This is NOT a malfunction. Even if you press the ON button on the user interface, the unit will NOT start. To restart the unit, turn OFF the main power supply switch and turn it ON again.

6 Turn OFF the main power supply switch.

NOTICE

Make sure to reopen both stop valves before restarting the unit.

Installer reference guide

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Sky Air Advance-series

4P486047-1B – 2018.06

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12 Technical data

A~E

a b c d e e

B — ≥100 A, B, C — ≥250 ≥100 ≥100 B, E — ≥100 ≥1000 ≤500 A, B, C, E — ≥250 ≥150 ≥150 ≥1000 ≤500 D — ≥500 D, E — ≥500 ≥1000 ≤500 B, D — ≥100 ≥500 B, D, E

1+2

B<HDHB

≤½H

≥250 ≥750 ≥1000 ≤500

½H

U<HB≤HU

≥250 ≥1000 ≥1000 ≤500

B>HU

HB>HDHD≤½H

≥100 ≥1000 ≥1000 ≤500

½H

U<HD≤HU

≥200 ≥1000 ≥1000 ≤500

D>HU

A, B, C — ≥250 ≥300 ≥1000 A, B, C, E — ≥250 ≥300 ≥1000 ≥1000 ≤500 D — ≥1000 D, E — ≥1000 ≥1000 ≤500 B, D H

D>HU

≥300 ≥1000

≤½H

≥250 ≥1500

½H

U<HD≤HU

≥300 ≥1500

B, D, E H

B<HDHB

≤½H

≥300 ≥1000 ≥1000 ≤500

½H

U<HB≤HU

≥300 ≥1250 ≥1000 ≤500

B>HU

HB>HDHD≤½H

≥250 ≥1000 ≥1000 ≤500

½H

U<HD≤HU

≥300 ≥1000 ≥1000 ≤500

D>HU

HBHDH

(mm)

≥100

12 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 extranet (authentication required).

12.1 Overview: Technical data

This chapter contains information about:

• Service space

• Piping diagram

• Wiring diagram

12.2 Service space: Outdoor unit

Suction side In the illustrations below, the service space at the suction side is based on 35°CDB and cooling operation. Foresee

more space in the following cases:

▪ When the suction side temperature regularly exceeds this temperature.

▪ When the heat load of the outdoor units is expected to regularly exceed the maximum operating capacity.

Discharge side Take refrigerant piping work into account when positioning the units. If your layout does not match with any of the

layouts below, contact your dealer.

Single unit (

) | Single row of units ( )

A,B,C,D Obstacles (walls/baffle plates)

E Obstacle (roof)

a,b,c,d,e Minimum service space between the unit and obstacles A, B, C, D and E

RZASG71~140M_V1+Y1 Sky Air Advance-series 4P486047-1B – 2018.06

eBMaximum distance between the unit and the edge of obstacle E, in the direction of obstacle B eDMaximum distance between the unit and the edge of obstacle E, in the direction of obstacle D

HUHeight of the unit

HB,HDHeight of obstacles B and D

1 Seal the bottom of the installation frame to prevent discharged air from flowing back to the suction side through the bottom of the unit. 2 Maximum two units can be installed.

Not allowed

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12 Technical data

b (mm)

≥1000

≥200

≥2000

≥100

≥3000

≥1500

≥100

≥250

HB≤½H

b≥250

½HU<HB≤H

b≥300

HB>H

HBH

≥500

≥1000

≥500

≥300

≥100

≥300

≥100

≥1000

LPS

HPS

LPS

Multiple rows of units ( )

Stacked units (max. 2 levels) ( )

A1=>A2 (A1) If there is danger of drainage dripping and freezing between the upper and lower units…

B1=>B2 (B1) If there is no danger of drainage dripping and freezing between the upper and lower units…

(A2) Then install a roof between the upper and lower units. Install the upper unit high enough above the lower unit to prevent ice buildup at the upper unit's bottom plate.

(B2) Then it is not required to install a roof, but seal the gap between the upper and lower units to prevent discharged air from flowing back to the suction side through the bottom of the unit.

12.3 Piping diagram: Outdoor unit

Charge port / Service port (with 5/16" flare)

Stop valve

Filter

Installer reference guide

Check valve

Pressure relief valve

Solenoid valve

Heat sink (PCB)

Capillary tube

Electronic expansion valve

4‑way valve

High pressure switch

Low pressure switch

Compressor accumulator

Heat exchanger

Compressor

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12 Technical data

Distributor

Liquid receiver

Flare connection

A Field piping (liquid: Ø9.5 flare connection)

B Field piping (gas: Ø15.9 flare connection)

Heating

Cooling

12.4 Wiring diagram: Outdoor unit

The wiring diagram is delivered with the unit, located at the inside of the service cover.

(1) Connection diagram

English Translation

Connection diagram Connection diagram

Only for *** Only for ***

See note *** See note ***

Outdoor Outdoor

Indoor Indoor

Upper Upper

Lower Lower

Fan Fan

ON ON

OFF OFF

(2) Layout

English Translation

Layout Layout

Front Front

Back Back

Position of compressor terminal Position of compressor terminal

(3) Notes

English Translation

Notes Notes

Connection

X1M Indoor/outdoor communication

Earth wiring

Field supply

Several wiring possibilities

Protective earth

Field wire

Wiring depending on model

Option

Switch box

PCB

NOTES:

1 Refer to the wiring diagram sticker (on the back of the front

plate) for how to use the BS1~BS3 and DS1 switches.

2 When operating, do not short-circuit protective devices S1PH

S1PLand Q1E.

3 Refer to the combination table and the option manual for how

to connect the wiring to X6A, X28A and X77A.

4 Colours: BLK: black, RED: red, BLU: blue, WHT: white, GRN:

green

(4) Legend

English Translation

Legend Legend

Field supply Field supply

Optional Optional

Part n° Part n°

Description Description

A1P Printed circuit board (main)

A2P Printed circuit board (noise filter)

BS1~BS3 (A1P) Push button switch

C1~C5 (A1P) (Y1 only)

DS1 (A1P) Dipswitch

E1H Bottom plate heater (option)

F*U Fuse

HAP (A1P) Light-emitting diode (service monitor is

K1M, K3M (A1P) (Y1 only)

K1R (A1P) Magnetic relay (Y1S)

K2R (A1P) Magnetic relay (Y2S)

K4R (A1P) Magnetic relay (E1H)

K10R, K13R~K15R (A1P)

K11M (A1P) (V1 only)

L1R (Y1 only) Reactor

M1C Compressor motor

M1F~M2F Fan motor

PFC (A1P) (V1 only) Power factor correction

PS (A1P) Switching power supply

Q1DI Earth leakage circuit breaker (30mA)

Q1E Overload protection

R1~R8 (A1P) (Y1 only)

R1T Thermistor (air)

R2T Thermistor (discharge)

R3T Thermistor (suction)

R4T Thermistor (heat exchanger)

R5T Thermistor (heat exchanger middle)

R6T Thermistor (liquid)

R7T Thermistor (fin)

R8 (A1P) (V1 only) Resistor

RC (A1P) (Y1 only) Signal receiver unit

S1PH High pressure switch

S1PL Low pressure switch

SEG1~SEG3 7-segment display

TC1 (A1P) (V1 only) Signal transmission circuit

TC (A1P) (Y1 only) Signal transmission circuit

V1 (V1 only) Varistor

V1D (A1P) (V1 only) Diode

V1D~V2D (A1P) (Y1 only)

Capacitor

green)

Magnetic contactor

Magnetic relay

Magnetic contactor

Resistor

Diode

RZASG71~140M_V1+Y1 Sky Air Advance-series 4P486047-1B – 2018.06

Installer reference guide

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13 Glossary

V*R (V1 only) Diode module

V1R, V2R (A1P) (Y1 only)

V3R~V5R (A1P) (Y1 only)

X1M Terminal strip

Y1E~Y3E Electronic expansion valve

Y1S~Y2S Solenoid valve (4‑way valve)

Z*C Noise filter (ferrite core)

Z*F Noise filter

L*, L*A, L*B, NA, NB, E*, U, V, W, X*A (A1P~A2P)

Diode module

IGBT power module

Connector

13 Glossary

Dealer

Sales distributor for the product.

Authorized installer

Technical skilled person who is qualified to install the product.

User

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.

Accessories

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.

Installer reference guide

RZASG71~140M_V1+Y1

Sky Air Advance-series

4P486047-1B – 2018.06

Page 33

Page 34

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Page 36

4P486047-1B 2018.06

Daikin RZASG71M2V1B, RZASG100M7V1B, RZASG125M7V1B, RZASG140M7V1B, RZASG100M7Y1B Installer reference guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of contents

1 General safety precautions 2

1.1 About the documentation

1.1.1 Meaning of warnings and symbols

1.2 For the installer

1.2.1 General

1.2.2 Installation site

Instructions for equipment using R32 refrigerant

Installation space requirements

To determine the minimum floor area

1.2.3 Refrigerant

1.2.4 Brine

1.2.5 Water

1.2.6 Electrical

2 About the documentation

2.1 About this document

3 About the box

3.1 Overview: About the box

3.2 Outdoor unit

3.2.1 To unpack the outdoor unit

2.2 Installer reference guide at a glance

3.2.2 To handle the outdoor unit

4 About the units and options

3.2.3 To remove the accessories from the outdoor unit

4.3 Combining units and options

4.3.1 Possible options for the outdoor unit

4.1 Overview: About the units and options

4.2 Identification

4.2.1 Identification label: Outdoor unit

5 Preparation

5.1 Overview: Preparation

5.2 Preparing the installation site

5.2.1 Installation site requirements of the outdoor unit

5.2.2 Additional installation site requirements of the outdoor unit in cold climates

Definitions: L1~L7, H1, H2

5.3 Preparing refrigerant piping

5.3.1 Refrigerant piping requirements

Refrigerant piping material

Refrigerant piping diameter

Refrigerant piping length and height difference

5.3.2 Refrigerant piping insulation

5.4 Preparing electrical wiring

5.4.1 About preparing electrical wiring

6 Installation

6.2.2 To open the outdoor unit

6.1 Overview: Installation

6.2 Opening the units

6.2.1 About opening the units

6.3 Mounting the outdoor unit

6.3.1 About mounting the outdoor unit

6.3.2 Precautions when mounting the outdoor unit

6.3.3 To provide the installation structure

6.3.4 To install the outdoor unit

6.3.5 To provide drainage

6.3.6 To prevent the outdoor unit from falling over

6.4 Connecting the refrigerant piping

6.4.1 About connecting the refrigerant piping

6.4.2 Precautions when connecting the refrigerant piping

6.4.3 Guidelines when connecting the refrigerant piping

6.4.4 Pipe bending guidelines

6.4.5 To flare the pipe end

6.4.7 Using the stop valve and service port

To handle the stop valve

6.4.6 To braze the pipe end

To open/close the stop valve

To handle the stem cap

To handle the service cap

6.4.8 To connect the refrigerant piping to the outdoor unit

6.5.2 Precautions when checking the refrigerant piping

6.5.3 Checking refrigerant piping: Setup

6.5 Checking the refrigerant piping

6.5.1 About checking the refrigerant piping

6.5.4 To check for leaks

6.5.5 To perform vacuum drying

6.6 Charging refrigerant

6.6.1 About charging refrigerant