Daikin CHYHBH05AA, CHYHBH08AA, EHYKOMB33A Installer reference guide

Installer reference guide

Daikin hybrid for multi heat pump – heat pump

module

CHYHBH05AA CHYHBH08AA EHYKOMB33A

Installer reference guide

Daikin hybrid for multi heat pump – heat pump module

English

Table of contents

1 General safety precautions 3

1.1 About the documentation .......................................................... 3

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

1.2 For the installer.......................................................................... 4

1.2.1 General ....................................................................... 4

1.2.2 Installation site ............................................................ 4

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

1.2.4 Water .......................................................................... 6

1.2.5 Electrical ..................................................................... 6

1.2.6 Gas ............................................................................. 7

1.2.7 Gas exhaust................................................................ 7

1.2.8 Local legislation .......................................................... 7

2 About the product 7

3 About the documentation 8

3.1 About this document.................................................................. 8

3.2 Installer reference guide at a glance ......................................... 8

4 About the box 8

4.1 Overview: About the box ........................................................... 8

4.2 Indoor unit ................................................................................. 9

4.2.1 To unpack the indoor unit ........................................... 9

4.2.2 To remove the accessories from the indoor unit......... 9

4.3 Gas boiler .................................................................................. 9

4.3.1 To unpack the gas boiler............................................. 9

4.3.2 To remove the accessories from the gas boiler.......... 10

5 About the units and options 10

5.1 Overview: About the units and options...................................... 10

5.2 Identification .............................................................................. 10

5.2.1 Identification label: Indoor unit .................................... 10

5.2.2 Identification label: gas boiler...................................... 11

5.3 Combining units and options ..................................................... 11

5.3.1 Possible options for the indoor unit............................. 11

5.3.2 Possible options for the gas boiler.............................. 12

5.3.3 Possible combinations of indoor unit and outdoor

unit .............................................................................. 15

5.3.4 Possible combinations of indoor unit and domestic

hot water tank ............................................................. 15

6 Preparation 15

6.1 Overview: Preparation............................................................... 15

6.2 Preparing installation site .......................................................... 15

6.2.1 Installation site requirements of the indoor unit .......... 15

6.3 Preparing refrigerant piping....................................................... 17

6.3.1 Refrigerant piping requirements.................................. 17

6.3.2 Refrigerant piping insulation ....................................... 17

6.4 Preparing water piping .............................................................. 17

6.4.1 Water circuit requirements .......................................... 17

6.4.2 Formula to calculate the expansion vessel pre-

pressure ...................................................................... 19

6.4.3 To check the water volume and flow rate ................... 19

6.4.4 Changing the pre-pressure of the expansion vessel... 20

6.4.5 To check the water volume: Examples ....................... 20

6.5 Preparing electrical wiring ......................................................... 20

6.5.1 About preparing electrical wiring................................. 20

6.5.2 Overview of electrical connections except external

actuators ..................................................................... 21

6.5.3 Overview of electrical connections for external and

internal actuators ........................................................ 21

7 Installation 22

7.1 Overview: Installation ................................................................ 22

7.2 Opening the units ...................................................................... 22

7.2.1 About opening the units .............................................. 22

7.2.2 To open the switch box cover of the indoor unit ......... 22

7.2.3 To open the gas boiler ................................................. 23

7.2.4 To open the switch box cover of the gas boiler............ 23

7.3 Mounting the indoor unit............................................................. 23

7.3.1 About mounting the indoor unit.................................... 23

7.3.2 Precautions when mounting the indoor unit................. 23

7.3.3 To install the indoor unit............................................... 23

7.4 Mounting the gas boiler .............................................................. 24

7.4.1 To install the gas boiler ................................................ 24

7.4.2 To install the condensate trap...................................... 24

7.5 Condensate pipe work................................................................ 25

7.5.1 Internal connections..................................................... 25

7.5.2 External connections.................................................... 26

7.6 Connecting the refrigerant piping ............................................... 26

7.6.1 About connecting the refrigerant piping ....................... 26

7.6.2 Precautions when connecting the refrigerant piping.... 26

7.6.3 Guidelines when connecting the refrigerant piping...... 27

7.6.4 Pipe bending guidelines............................................... 27

7.6.5 To flare the pipe end .................................................... 27

7.6.6 To braze the pipe end .................................................. 27

7.6.7 Using the stop valve and service port .......................... 27

7.6.8 Usage of reducers to connect the piping to the

outdoor unit .................................................................. 28

7.6.9 To connect the refrigerant piping to the indoor unit ..... 28

7.7 Checking the refrigerant piping .................................................. 29

7.7.1 About checking the refrigerant piping .......................... 29

7.7.2 Precautions when checking the refrigerant piping ....... 29

7.7.3 To check for leaks........................................................ 29

7.7.4 To perform vacuum drying ........................................... 29

7.8 Charging refrigerant ................................................................... 29

7.8.1 About charging refrigerant ........................................... 29

7.8.2 About the refrigerant .................................................... 30

7.8.3 Precautions when charging refrigerant ........................ 30

7.8.4 To determine the additional refrigerant amount........... 30

7.8.5 To determine the complete recharge amount.............. 30

7.8.6 To charge additional refrigerant ................................... 30

7.8.7 To fix the fluorinated greenhouse gases label ............. 31

7.9 Connecting the water piping....................................................... 31

7.9.1 About connecting the water piping............................... 31

7.9.2 Precautions when connecting the water piping............ 31

7.9.3 Connecting the water piping of the indoor unit............. 31

7.9.4 Connecting the water piping of the gas boiler.............. 32

7.9.5 To fill the space heating circuit..................................... 33

7.9.6 To fill the domestic water circuit of the gas boiler ........ 33

7.9.7 To fill the domestic hot water tank ............................... 33

7.9.8 To insulate the water piping ......................................... 33

7.10 Connecting the electrical wiring.................................................. 33

7.10.1 About connecting the electrical wiring.......................... 33

7.10.2 Precautions when connecting the electrical wiring ...... 33

7.10.3 Guidelines when connecting the electrical wiring ........ 33

7.10.4 To connect the electrical wiring on the indoor unit ....... 34

7.10.5 To connect the main power supply of the indoor unit .. 34

7.10.6 To connect the main power supply of the gas boiler.... 35

7.10.7 To connect the communication cable between gas

boiler and indoor unit ................................................... 35

7.10.8 To connect the user interface ...................................... 36

7.10.9 To connect the shut-off valve ....................................... 37

7.10.10 To connect the domestic hot water pump .................... 37

7.10.11 To connect the alarm output ........................................ 37

7.10.12 To connect the space heating ON/OFF output ............ 37

7.10.13 To connect the safety thermostat (normal closed

contact) ........................................................................ 38

7.11 Connecting the gas piping .......................................................... 38

7.11.1 To connect the gas pipe............................................... 38

7.12 Connecting the boiler to the flue gas system ............................. 38

7.12.1 To change the gas boiler to 80/125 concentric

connection.................................................................... 39

7.12.2 To change the 60/100 concentric connection to a

dual pipe connection .................................................... 39

7.12.3 Calculate the total piping length ................................... 39

7.12.4 Appliance categories and pipe lengths ........................ 40

Installer reference guide

Daikin hybrid for multi heat pump – heat pump module

CHYHBH05+08AA + EHYKOMB33A

4P471761-1 – 2016.12

1 General safety precautions

7.12.5 Applicable materials .................................................... 42

7.12.6 Flue pipe position ........................................................ 42

7.12.7 Insulation of the gas exhaust and air intake................ 43

7.12.8 Fitting a horizontal flue system ................................... 43

7.12.9 Fitting a vertical flue system........................................ 43

7.12.10 Plume management kit ............................................... 43

7.12.11 Flues in voids .............................................................. 44

7.13 Finishing the outdoor unit installation ........................................ 44

7.13.1 To finish the outdoor unit installation .......................... 44

7.13.2 To close the outdoor unit ............................................ 44

7.14 Finishing the indoor unit installation .......................................... 44

7.14.1 To close the indoor unit............................................... 44

7.15 Finishing the gas boiler installation ........................................... 44

7.15.1 To purge the gas supply ............................................. 44

7.15.2 To close the gas boiler ................................................ 44

7.15.3 To install the cover plate ............................................. 45

8 Configuration 45

8.1 Indoor unit ................................................................................. 45

8.1.1 Overview: Configuration.............................................. 45

8.1.2 Basic configuration...................................................... 48

8.1.3 Advanced configuration/optimization .......................... 54

8.1.4 Menu structure: Overview user settings...................... 61

8.1.5 Menu structure: Overview installer settings ................ 62

8.2 Gas boiler .................................................................................. 63

8.2.1 Overview: Configuration.............................................. 63

8.2.2 Basic configuration...................................................... 63

9 Operation 68

9.1 Overview: Operation.................................................................. 68

9.2 Heating ...................................................................................... 68

9.3 Domestic hot water.................................................................... 68

9.3.1 Flow resistance graph for appliance domestic hot

water circuit................................................................. 68

9.4 Operation modes....................................................................... 68

10 Commissioning 69

10.1 Overview: Commissioning ......................................................... 69

10.2 Precautions when commissioning ............................................. 69

10.3 Checklist before commissioning ................................................ 69

10.4 Checklist during commissioning ................................................ 70

10.4.1 To perform a wiring error check .................................. 70

10.4.2 To check the minimum flow rate ................................. 70

10.4.3 Air purge function ........................................................ 70

10.4.4 To perform a test run .................................................. 71

10.4.5 To perform an actuator test run .................................. 72

10.4.6 Underfloor heating screed dryout................................ 72

10.4.7 To perform an air purge on the gas supply ................. 73

10.4.8 To perform a test run on the gas boiler ....................... 73

13.3.5 Symptom: The pressure relief valve opens.................. 79

13.3.6 Symptom: The water pressure relief valve leaks ......... 79

13.3.7 Symptom: The space is NOT sufficiently heated at

low outdoor temperatures ............................................ 79

13.3.8 Symptom: The pressure at the tapping point is

temporarily unusually high ........................................... 79

13.3.9 Symptom: Tank disinfection function is NOT

completed correctly (AH-error)..................................... 79

13.3.10 Symptom: Boiler abnormality detection (HJ-11 error) .. 80

13.3.11 Symptom: Boiler/hydrobox combination abnormality

(UA52 error) ................................................................. 80

13.3.12 Symptom: The burner does NOT ignite ....................... 80

13.3.13 Symptom: The burner ignites noisily ............................ 80

13.3.14 Symptom: The burner resonates ................................. 80

13.3.15 Symptom: No space heating by the gas boiler ............ 80

13.3.16 Symptom: The power is reduced ................................. 81

13.3.17 Symptom: Space heating does NOT reach the

temperature.................................................................. 81

13.3.18 Symptom: Hot water does NOT reach the

temperature (no tank installed) .................................... 81

13.3.19 Symptom: Hot water does NOT reach the

temperature (tank installed) ......................................... 81

13.4 Solving problems based on error codes ..................................... 81

13.4.1 Error codes: Overview ................................................. 81

14 Disposal 83

14.1 Overview: Disposal..................................................................... 83

14.2 To pump down............................................................................ 84

14.3 To start and stop forced cooling ................................................. 84

15 Technical data 84

15.1 Piping diagram: Indoor unit ........................................................ 85

15.2 Wiring diagram: Indoor unit ........................................................ 85

15.3 Wiring diagram: Gas boiler ......................................................... 89

15.4 Maximum refrigerant charge allowed in a room: indoor unit ...... 90

15.5 Minimum floor area: indoor unit .................................................. 92

15.6 Minimum venting opening area for natural ventilation: indoor

unit.............................................................................................. 93

15.7 ESP curve: indoor unit................................................................ 95

15.8 Technical specifications: Gas boiler ........................................... 96

15.8.1 General ........................................................................ 96

15.8.2 Gas category and supply pressure .............................. 96

16 Glossary 100

17 Field settings table 101

1 General safety precautions

11 Hand-over to the user 74

12 Maintenance and service 74

12.1 Overview: Maintenance and service ......................................... 74

12.2 Maintenance safety precautions................................................ 74

12.2.1 Opening the indoor unit............................................... 74

12.3 Checklist for yearly maintenance of the outdoor unit ................ 74

12.4 Checklist for yearly maintenance of the indoor unit................... 74

12.5 To disassemble the gas boiler................................................... 75

12.6 To clean the inside of the gas boiler.......................................... 76

12.7 To assemble the gas boiler ....................................................... 77

13 Troubleshooting 77

13.1 Overview: Troubleshooting........................................................ 77

13.2 Precautions when troubleshooting ............................................ 78

13.3 Solving problems based on symptoms...................................... 78

13.3.1 Symptom: The unit is NOT heating as expected ........ 78

13.3.2 Symptom: The compressor does NOT start (space

heating) ....................................................................... 78

13.3.3 Symptom: The system is making gurgling noises

after commissioning .................................................... 78

13.3.4 Symptom: The pump is making noise (cavitation) ...... 78

CHYHBH05+08AA + EHYKOMB33A Daikin hybrid for multi heat pump – heat pump module 4P471761-1 – 2016.12

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 authorized installer.

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.

Installer reference guide

1 General safety precautions

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.

DANGER: RISK OF POISONING

Indicates a situation that could result in poisoning.

WARNING

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

WARNING: PROTECT AGAINST FROST

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

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).

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.

For Swiss market, domestic hot water operation should only be prepared in combination with a tank. Instant domestic hot water by the gas boiler is NOT allowed. Make the correct settings as described in this manual.

Please follow following Swiss regulations and directives:

▪ SVGW-gas principles G1 for gas installations,

▪ SVGW-gas principles L1 for liquid gas installations,

▪ cautional instances regulations (e.g., fire regulation).

1.2.2 Installation site

▪ Provide sufficient space around the unit for servicing and air

circulation.

▪ Make sure the installation site withstands the total weight and

vibration of the installation.

CAUTION

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

Installer reference guide

Module Weight

Hybrid module 30kg

Gas module 36kg

Indoor part (Hybrid module + gas module)

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

ventilation openings.

Daikin hybrid for multi heat pump – heat pump module

Total weight: 66kg

CHYHBH05+08AA + EHYKOMB33A

4P471761-1 – 2016.12

1 General safety precautions

▪ Make sure the unit is level.

▪ Make sure walls sensitive to heat (e.g. wood) are protected by

suitable insulation.

▪ ONLY operate the gas boiler if a sufficient supply of combustion

air is ensured. In case of a concentric air/flue gas system dimensioned according to the specifications of this manual, this is fulfilled automatically and there are no other conditions for the equipment installation room. This method of operation applies exclusively.

▪ This gas boiler is NOT designed for room air dependent operation.

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.

▪ In bathrooms.

▪ In places where frost is possible. The ambient temperature around

the indoor unit should be >5°C.

DANGER: RISK OF EXPLOSION

Pump down – Refrigerant leakage. If you want to pump

down the system, and there is a leakage 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.

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.

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

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

A siphon tube is NOT present Charge with the cylinder upside

Charge with the cylinder upright.

down.

CHYHBH05+08AA + EHYKOMB33A Daikin hybrid for multi heat pump – heat pump module 4P471761-1 – 2016.12

▪ Open refrigerant cylinders slowly.

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

prevent normal operation.

Installer reference guide

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 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.

Avoid damages caused by deposits and corrosion. To prevent corrosion products and deposits, observe the applicable regulations of technology.

Measures for desalination, softening or hardness stabilization are necessary if the filling and top-up water have a high total hardness (>3 mmol/l–sum of the calcium and magnesium concentrations, calculated as calcium carbonate).

Using filling water and top-up water which does NOT meet the stated quality requirements can cause a considerably reduced service life of the equipment. The responsibility for this is entirely that of the user.

1.2.5 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.

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:

▪ 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 below.

▪ 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.

Install power cables at least 1 metre away from televisions or radios to prevent interference. Depending on the radio waves, a distance of 1metre may not be sufficient.

Installer reference guide

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.

CHYHBH05+08AA + EHYKOMB33A

Daikin hybrid for multi heat pump – heat pump module

4P471761-1 – 2016.12

2 About the product

1.2.6 Gas

The gas boiler is factory‑set to:

▪ the type of gas quoted on the type identification plate or on the

setting type identification plate,

▪ the gas pressure quoted on the type identification plate.

Operate the unit ONLY with the gas type and gas pressure indicated on these type identification plates.

Installation and adaptation of the gas system MUST be conducted by:

▪ personnel qualified for this work,

▪ in compliance with valid gas installation related guidelines,

▪ in accordance with applicable regulations of the gas supply

company,

▪ In accordance with local and national regulations.

Boilers that use natural gas MUST be connected to a governed meter.

Boilers that use liquid petroleum gas (LPG) MUST be connected to a regulator.

The size of the gas supply pipe should under no circumstance be less than 22mm.

The meter or regulator and pipe work to the meter MUST be checked preferably by the gas supplier. This is to ensure that the equipment works good and meets the gas flow and pressure requirements.

DANGER

If you smell gas:

▪ call immediately your local gas supplier and your

installer,

▪ call the suppliers's number on the side of the LPG tank

(if applicable),

▪ turn off the emergency control valve at the meter/

regulator,

▪ do NOT turn electrical switches ON or OFF,

▪ do NOT strike matches or smoke,

▪ put out naked flames,

▪ open doors and windows immediately,

▪ keep people away from the affected area.

1.2.7 Gas exhaust

Flue systems must NOT be modified or installed in any way other than as described in the fitting instructions. Any misuses or unauthorized modifications to the appliance, flue or associated components and systems could invalidate the warranty. The manufacturer accepts no liability arising from any such actions, excluding statutory rights.

It is NOT allowed to combine flue system parts purchased from different suppliers.

1.2.8 Local legislation

See the local and national regulations.

Local regulations for UK

It is law that all gas appliances are installed by a gas safe registered competent engineer and in accordance with the following recommendations:

▪ Current Gas Safety (Installation and Use) Regulations

▪ All current building regulations

▪ Building Standards (Scotland) Consolidated

▪ This appliance MUST be installed in accordance with the Gas

(Safety and Use) Regulations, current Building Regulations, Building Standards (Scotland), I.S.813 Installation of Gas Appliances (Ireland), IEE Wiring Regulations (BS 7671), Health and Safety Document No. 635 (Electricity at Work Regulations) and Local Water Authority Bye Laws

▪ UK Water Regulations and Bye Laws

▪ Health & Safety

The installation MUST comply with the following British Standards codes of practice:

▪ BS 5440: Flues and Ventilation for gas appliances of rated input

NOT exceeding 70kW (Part 1 Flues)

▪ BS 5440: Flues and Ventilation for gas appliances of rated input

NOT exceeding 70kW (Part 2 Air Supply)

▪ BS 5546: 2000 Installation of gas hot water supplies for domestic

purposes.

▪ BS 5549: 1990 Forced circulation hot water systems.

▪ BS 6700: 1997 Design, Installation, testing and maintenance of

services supplying hot water

▪ BS 6798: 2000 Specification for installation of gas fired hot water

boilers of rated input NOT exceeding 70kW

▪ BS 6891: 1998 Installation of low pressure gas pipe-work

installation up to 35mm (RI)

▪ BS 7593: 1992 Code of practice for treatment of water in heating

systems

▪ BS 7671: 2001 Requirements for electrical installations, IEE

Wiring regulations

▪ BS 7074: 1 Code of practice for domestic and hot water supply

▪ EN12828 Central heating for domestic premises

Potable water: all seals, joints and compounds (including flux and solder) and components used as part of the secondary domestic water system MUST be approved by WRAS.

2 About the product

Especially for UK:

The Benchmark Scheme

Benchmark places responsibilities on both manufacturers and installers. The purpose is to ensure that customers are provided with the correct equipment for their needs, that it is installed, commissioned and serviced in accordance with the manufacturer’s instructions by competent persons and that it meets the requirements of the appropriate Building Regulations. The Benchmark Checklist can be used to demonstrate compliance with Building Regulations and should be provided to the customer for future reference.

Installers are required to carry out installation, commissioning and servicing work in accordance with the Benchmark Code of Practice which is available from the Heating and Hotwater Industry Council who manage and promote the Scheme. Visit http://

www.centralheating.co.uk for more information.

Approvals

British Gas Service listing:

EHYKOMB33AA*: G.C.N. 47-464-01

The product (hybrid system) is composed of two modules:

CHYHBH05+08AA + EHYKOMB33A Daikin hybrid for multi heat pump – heat pump module 4P471761-1 – 2016.12

Installer reference guide

3 About the documentation

a b

▪ heat pump module,

▪ gas boiler module.

These modules MUST always be installed and used together.

a Heat pump module b Gas boiler module

3 About the documentation

3.1 About this document

Target audience

Authorised installers

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 indoor unit)

▪ Heat pump module installation manual:

▪ Installation instructions

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

▪ Gas boiler module installation manual:

▪ Installation and operation instructions

▪ Format: Paper (in the box of the gas boiler 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/

▪ Addendum book for optional equipment:

▪ Additional info about how to install optional equipment

▪ Format: Paper (in the box of the indoor unit) + Digital files on

http://www.daikineurope.com/support-and-manuals/productinformation/

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).

3.2 Installer reference guide at a glance

Chapter Description

General safety precautions

About the product Required combination of heat pump

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

Configuration What to do and know to configure the

Operation Operation modes of the gas boiler

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

Glossary Definition of terms

Field settings table Table to be filled in by the installer, and

Safety instructions that you must read before installing

module and gas boiler module

installer

their accessories

▪ How to identify the units

▪ Possible combinations of units and

options

on‑site

system

system after it is installed

module

system after it is configured

kept for future reference

Note: There is also an installer settings table in the user reference guide. This table has to be filled in by the installer and handed over to the user.

4 About the box

4.1 Overview: About the box

It contains information about:

▪ Unpacking and handling the units

Installer reference guide

Daikin hybrid for multi heat pump – heat pump module

CHYHBH05+08AA + EHYKOMB33A

4P471761-1 – 2016.12

4 About the box

a b c d e

f g

▪ 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.

4.2 Indoor unit

4.2.1 To unpack the indoor unit

INFORMATION

Do NOT throw away the upper cardboard cover. On the outside of the cardboard cover, the installation pattern is printed.

4.2.2 To remove the accessories from the indoor unit

The installation manual, operation manual, addendum book for optional equipment, general safety precautions, quick installation guide, and boiler communication cable are located in the upper part of the box. The connection pieces for the gas boiler are attached to the water piping.

1 Remove the accessories as described in "4.2.1To unpack the

indoor unit"on page9.

a General safety precautions b Addendum book for optional equipment c Indoor unit installation manual d Operation manual e Quick installation guide

f Connection pieces for gas boiler

g Boiler communication cable

4.3 Gas boiler

4.3.1 To unpack the gas boiler

Before unpacking, move the gas boiler as close as possible to its installation position.

a Installation manual, operation manual, addendum book for

optional equipment, quick installation guide, general safety precautions, boiler communication cable

b Connection pieces for the gas boiler

CHYHBH05+08AA + EHYKOMB33A Daikin hybrid for multi heat pump – heat pump module 4P471761-1 – 2016.12

Installer reference guide

5 About the units and options

a b c

a Mounting strip b Condensate trap c Installation manual and operation manual

WARNING

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

5 About the units and options

5.1 Overview: About the units and options

This chapter contains information about:

▪ Identifying the indoor unit

▪ Identifying the gas boiler

▪ Combining outdoor and indoor units

▪ Combining the indoor unit with options

▪ Combining the gas boiler with options

5.2 Identification

NOTICE

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

5.2.1 Identification label: Indoor unit

Location

4.3.2 To remove the accessories from the gas boiler

1 Remove the accessories.

Installer reference guide

Model identification

Example: CHYHBH05AAV3

Code Description

C Residential multi compatible model

CHYHBH05+08AA + EHYKOMB33A

Daikin hybrid for multi heat pump – heat pump module

4P471761-1 – 2016.12

5 About the units and options

No: Anno:

Type: NOx classe: PIN: G.C.: SVGW:

Qnw(net)

PMW

kW kW bar

Qn (net)

PMS

bar

°C

0063 2013

Tmax

Condensing boiler

d e f

n o p

r s

Code Description

HY Hybrid indoor unit

HBH Hydrobox heating only

o Maximum space heating pressure (bar) p Maximum flow temperature (°C) q Electrical supply

r GCN gas council number

s SVGW number

05 Capacity class

AA Model series

5.3 Combining units and options

V3 Power supply

5.3.1 Possible options for the indoor unit

5.2.2 Identification label: gas boiler

Location

Model identification

a Model

b Serial number

c Production year

d Appliance type

e NOx class

f PIN number: notified body reference

g Destination country

CHYHBH05+08AA + EHYKOMB33A Daikin hybrid for multi heat pump – heat pump module 4P471761-1 – 2016.12

h Gas type

i Gas supply pressure (mbar) j Appliance category

k Domestic hot water heat output (kW)

l Maximum domestic hot water pressure (bar)

m Heat output (space heating) (kW)

n Nominal power (kW)

User interface (EKRUCBL*)

The user interface and a possible additional user interface are available as an option.

The additional user interface can be connected:

▪ To have both:

▪ control close to the indoor unit,

▪ room thermostat functionality in the principal space to be

heated.

▪ To have an interface containing other languages.

Following user interfaces are available:

▪ EKRUCBL1 contains following languages: German, French,

Dutch, Italian.

▪ EKRUCBL2 contains following languages: English, Swedish,

Norwegian, Finnish.

▪ EKRUCBL3 contains following languages: English, Spanish,

Greek, Portuguese.

▪ EKRUCBL4 contains following languages: English, Turkish,

Polish, Romanian.

▪ EKRUCBL5 contains following languages: German, Czech,

Slovenian, Slovakian.

▪ EKRUCBL6 contains following languages: English, Croatian,

Hungarian, Estonian.

▪ EKRUCBL7 contains following languages: English, German,

Russian, Danish.

Languages on the user interface can be uploaded by PC software or copied from an user interface to the other.

For installation instructions, see "7.10.8 To connect the user

interface"on page36.

Simplified user interface (EKRUCBS)

▪ The simplified user interface can only be used in combination with

the main user interface.

▪ The simplified user interface acts as room thermostat and needs

to be installed in the room that you want it to control.

For installation instructions, see the installation and operation manual of the simplified user interface.

Room thermostat (EKRTWA, EKRTR1, RTRNETA)

You can connect an optional room thermostat to the indoor unit. This thermostat can either be wired (EKRTWA) or wireless (EKRTR1 and RTRNETA). Thermostat RTRNETA can only be used in heating-only systems.

For installation instructions, see the installation manual of the room thermostat and addendum book for optional equipment.

Remote sensor for wireless thermostat (EKRTETS)

You can use a wireless indoor temperature sensor (EKRTETS) only in combination with the wireless thermostat (EKRTR1).

For installation intructions, see the installation manual of the room thermostat and addendum book for optional equipment.

Digital I/O PCB (EKRP1HB)

The digital I/O PCB is required to provide the following signals:

▪ Alarm output

Installer reference guide

5 About the units and options

▪ Space heating/cooling On/OFF output

For installation instructions, see the installation manual of the digital I/O PCB and the addendum book for optional equipment.

Remote indoor sensor (KRCS01-1)

By default the internal user interface sensor will be used as room temperature sensor.

As an option the remote indoor sensor can be installed to measure the room temperature on another location.

For installation instructions, see the installation manual of the remote indoor sensor and addendum book for optional equipment.

INFORMATION

▪ The remote indoor sensor can only be used in case the

user interface is configured with room thermostat functionality.

▪ You can only connect either the remote indoor sensor

or the remote outdoor sensor.

Remote outdoor sensor (EKRSCA1)

By default the sensor inside the outdoor unit will be used to measure the outdoor temperature.

As an option the remote outdoor sensor can be installed to measure the outdoor temperature on another location (e.g. to avoid direct sunlight) to have an improved system behaviour.

For installation instructions, see the installation manual of the remote outdoor sensor.

INFORMATION

You can only connect either the remote indoor sensor or the remote outdoor sensor.

PC configurator (EKPCCAB)

The PC cable makes a connection between the switch box of the indoor unit and a PC. It gives the possibility to upload different language files to the user interface and indoor parameters to the indoor unit. For the available language files, contact your local dealer.

The software and corresponding operating instructions are available on http://www.daikineurope.com/support-and-manuals/software-

downloads/.

For installation instructions, see the installation manual of the PC cable and "8Configuration"on page45.

Heat pump convector (FWXV)

For installation instructions, refer to the installation manual of the heat pump convectors, and the addendum book for optional equipment.

Solar kit (EKSRPS3)

The solar kit is required to connect the solar application with the domestic hot water tank.

For installation, see the installation manual of the solar kit and addendum book for optional equipment.

Domestic hot water tank

The domestic hot water tank can be connected to the indoor unit for providing domestic hot water. The polypropylene tank is available in 2 types:

▪ EKHWP300B: 300l.

▪ EKHWP500B: 500l.

Use the appropriate connection kit for the tank (EKEPHT3H), as described in the addendum book for optional equipment.

Connection kit for the tank (EKEPHT3H)

Use the connection kit to connect the domestic hot water tank to the indoor unit.

For installation instructions, see the installation manual of the connection kit.

Mounting kit (EKHYMNT1A, EKHYMNT2A, EKHYMNT3A)

Mounting fixture for easy installation of the hybrid system (heat pump module + gas boiler module). For the selection of the correct kit, see the combination table.

For installation instructions, see the installation manual of the mounting kit.

Filling loop kit (EKFL1A)

Filling loop for easy filling of the water circuit. This kit can only be used in combination with mounting kit EKHYMNT1A.

For installation instructions, see the installation manual of the filling loop kit.

Valve kit (EKVK1A, EKVK2A, EKVK3A)

A set of valves for the easy connection of the field piping. For the connection of the correct kit, see the combination table.

For installation instructions, see the installation manual of the valve kit.

Recirculation thermistor (EKTH2)

Kit for recirculating the water on the gas boiler. Only use this kit when there is no domestic hot water tank installed.

Connection kit for 3rd‑party tank (EKHY3PART)

Use the connection kit to connect a 3rd‑party tank to the system. The connection kit exists of a thermistor and a 3-way valve.

LAN adapter for smartphone control (BRP069A62)

You can install this LAN adapter to control the system via a smartphone app.

For installation instructions, see the installation manual of the LAN adapter.

5.3.2 Possible options for the gas boiler

Main options

Boiler cover plate (EKHY093467)

Cover plate to protect the gas boiler’s piping and valves.

For installation instructions, see the installation manual of the cover plate.

Gas conversion kit G25 (EKPS076227)

Kit for the conversion of the gas boiler for use with gas type G25.

Gas conversion kit G31 (EKHY075787)

Kit for the conversion of the gas boiler for use with gas type G31 (propane).

Dual pipe conversion kit (EKHY090707)

Kit for the conversion of a concentric flue gas system to a dual pipe system.

For installation instructions, see the installation manual of the dual pipe conversion kit.

80/125 concentric connection kit (EKHY090717)

Kit for the conversion of 60/100 concentric flue gas connections to 80/125 concentric flue gas connections.

For installation instructions, see the installation manual of the concentric connection kit.

Flue gas flap valve (EKFGF1A)

Non-return flap valve for use in multi-boiler flue gas systems. This valve can only be used in systems using natural gas (G20, G25), and CANNOT be used in systems using propane (G31).

Other options

Installer reference guide

Daikin hybrid for multi heat pump – heat pump module

CHYHBH05+08AA + EHYKOMB33A

4P471761-1 – 2016.12

5 About the units and options

Accessories Part number Description

EKFGP6837 Roof terminal PP/GLV 60/100

AR460

EKFGS0518 Weather slate steep Pb/GLV

60/100 18°-22°

EKFGS0519 Weather slate steep Pb/GLV

60/100 23°-17°

EKFGP7910 Weather slate steep PF 60/100

25°-45°

EKFGS0523 Weather slate steep Pb/GLV

60/100 43°-47°

EKFGS0524 Weather slate steep Pb/GLV

60/100 48°-52°

EKFGS0525 Weather slate steep Pb/GLV

60/100 53°-57°

EKFGP1296 Weather slate flat Aluminium

60/100 0°-15°

EKFGP6940 Weather slate flat Aluminium

60/100

EKFGP2978 Wall terminal kit PP/GLV

60/100

EKFGP2977 Wall terminal kit low profile PP/

GLV 60/100

EKFGP4651 Extension PP/GLV

60/100×500mm

Accessories Part number Description

EKFGW5333 Weather slate flat aluminium

80/125

EKFGW6359 Wall terminal kit PP/GLV

80/125

EKFGP4801 Extension PP/GLV

80/125×500mm

EKFGP4802 Extension PP/GLV

80/125×1000mm

EKFGP4814 Elbow PP/GLV 80/125 30°

EKFGP4811 Elbow PP/ALU 80/125 45°

EKFGP4810 Elbow PP/ALU 80/125 90°

EKFGP4820 Inspection elbow Plus PP/ALU

80/125 90° EPDM

EKFGP6864 Roof Terminal PP/GLV 80/125

AR300 RAL9011

EKFGP4652 Extension PP/GLV

60/100×1000mm

EKFGP4664 Elbow PP/GLV 60/100 30°

EKFGP4661 Elbow PP/GLV 60/100 45°

EKFGP4660 Elbow PP/GLV 60/100 90°

EKFGP4667 Meas. tee with inspection panel

PP/GLV 60/100

EKFGP4631 Wall bracket Ø100

EKFGP1292 Wall terminal Kit PP/GLV

60/100

EKFGP1293 Wall terminal kit low profile PP/

GLV 60/100

EKFGP1294 Plume management kit 60 (UK

only)

EKFGP1295 Flue deflector 60 (UK only)

EKFGP1284 PMK elbow 60 90 (UK only)

EKFGP1285 PMK elbow 60 45° (2pieces)

(UK only)

EKFGP1286 PMK extension 60 L=1000

includes bracket (UK only)

EKFGT6300 Weather slate steep Pb/GLV

80/125 18°-22°

EKFGT6301 Weather slate steep Pb/GLV

80/125 23°-27°

EKFGP7909 Weather slate steep PF 80/125

25°-45° RAL9011

EKFGT6305 Weather slate steep Pb/GLV

80/125 43°-47°

EKFGT6306 Weather slate steep Pb/GLV

80/125 48°-52°

EKFGT6307 Weather slate steep Pb/GLV

80/125 53°-57°

EKFGP1297 Weather slate flat aluminium

80/125 0°-15°

EKFGP6368 Tee flex 100 boiler connection

set 1

EKFGP6354 Flex 100-60 + support elbow

EKFGP6215 Tee flex 130 boiler connection

set 1

EKFGS0257 Flex 130-60 + support elbow

CHYHBH05+08AA + EHYKOMB33A Daikin hybrid for multi heat pump – heat pump module 4P471761-1 – 2016.12

Installer reference guide

5 About the units and options

Accessories Part number Description

EKFGP4678 Chimney connection 60/100

EKFGP5461 Extension PP 60×500

EKFGP5497 Chimney top PP 100 with

included flue pipe

EKFGP6316 Adapter flex-fixed PP 100

EKFGP6337 Support bracket top inox Ø100

EKFGP6346 Extension flex PP100 L=10m

EKFGP6349 Extension flex PP100 L=15m

Accessories Part number Description

EKFGP2520 Flex kit PP Ø80

EKFGP4828 Chimney connection 80/125

EKFGP6340 Extension Flex PP80 L=10m

EKFGP6344 Extension Flex PP80 L=15m

EKFGP6341 Extension Flex PP80 L=25m

EKFGP6342 Extension Flex PP80 L=50m

EKFGP6324 Connector-flex-flex PP80

EKFGP6347 Extension flex PP100 L=25m

EKFGP6325 Connector flex-flex PP100

EKFGP5197 Chimney top PP 130 with

included flue pipe

EKFGS0252 Adapter flex-fixed PP130

EKFGP6353 Support bracket top inox Ø130

EKFGS0250 Extension flex PP130 L=130m

EKFGP6366 Connector flex-flex PP130

EKFGP6333 Spacer PP80-100

EKFGP4481 Fixation Ø100

EKFGV1101 Chimney connection 60/10

airintake Dn.80 C83

EKFGV1102 Connection set 60/10-60 Flue/

Air intake Dn.80 C53

EKFGW4001 ExtensionPBM-Air 80×500

EKFGW4002 ExtensionPBM-Air 80×1000

EKFGW4004 ExtensionPBM-Air 80×2000

EKFGW4085 ElbowPPBM-Air8090°

EKFGP1856 Flex kit PPØ60-80

EKFGP4678 Chimney connection 60/100

Installer reference guide

EKFGW4086 ElbowPPBM-Air8045°

EKGFP1289 ElbowPP/GALV 60/100 50°

EKGFP1299 Kit horizontal low profile PP/

GLV 60/100 (UK only)

CHYHBH05+08AA + EHYKOMB33A

Daikin hybrid for multi heat pump – heat pump module

4P471761-1 – 2016.12

6 Preparation

H>500

300

10 350 500

(mm)

INFORMATION

For extra configuration options regarding the flue gas system, visit http://fluegas.daikin.eu/.

5.3.3 Possible combinations of indoor unit and outdoor unit

See the combination table in the technical engineering data.

5.3.4 Possible combinations of indoor unit and domestic hot water tank

Indoor unit Domestic hot water tank

EKHWP300B + EKHWP500B

CHYHBH05 O

CHYHBH08 O

6 Preparation

6.1 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 water piping

▪ Preparing the electrical wiring

6.2.1 Installation site requirements of the indoor unit

INFORMATION

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

▪ Mind the measurement guidelines:

Maximum refrigerant piping length between indoor unit and outdoor unit

Minimum refrigerant piping length between indoor unit and outdoor unit

Maximum height difference between indoor unit and outdoor unit

Maximum equivalent piping length between the 3‑way valve and the indoor unit (for installations with domestic hot water tank)

Maximum equivalent piping length between the domestic hot water tank and the indoor unit (for installations with domestic hot water tank)

(a) Piping diameter 0.75".

▪ Mind the following spacing installation guidelines:

25m

3m

15m

3m

10m

(a)

6.2 Preparing 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 the installation location with sufficient place for carrying the unit in and out of the site.

H Distance measured from the floor to the bottom of the

casing of the gas boiler (minimum 500mm, and in case of a valve mounting kit: 800mm).

h Distance measured from the floor to the flare nut of the

refrigerant piping.

CHYHBH05+08AA + EHYKOMB33A Daikin hybrid for multi heat pump – heat pump module 4P471761-1 – 2016.12

Installer reference guide

6 Preparation

Input from installer:

▪ Total refrigerant charge (m

) (kg) ▪ Installation height (H) (m) ▪ Area of room A (A

room A

) (m2)

Start

Use table 1 in chapter "Technical data" to calculate the maximum refrigerant charge (m

max

) (kg) allowed for room A.

Contact your dealer.

Use table 3 in chapter "Technical data" and dm to calculate the minimum opening area for natural ventilation between room A and

room B (VA

min

) (cm2). Make sure to select the

correct outdoor unit.

Unit can be installed at room A if: ▪ 2 ventilation openings (permanently open) are provided between room A and B, 1 at the top and 1 at the bottom. ▪ Bottom opening: The bottom opening must meet the minimum area requirements (VA

min

). If the ventilation opening starts from the floor, the height must be ≥20 mm. The bottom of the opening must be situated ≤100 mm from the floor. At least 50% of the required opening area must be situated <200 mm from the floor. The entire area of the opening must be situated <300 mm from the floor.

▪ Top opening: The area of the top opening must be larger than or equal to the bottom opening. The bottom of the top opening must be situated at least 1.5 m

above the top of the bottom opening.

▪ Ventilation openings to the outside are NOT considered suitable ventilation openings (the user can block them when it is cold). For ventilation opening

requirements, see "Ventilation opening requirements" in the chapter "Technical data".

The unit can be installed in room A at the specified installation height, and without further room size or ventilation requirements.

Determine the refrigerant amount that exceeds

max

(dm) (kg). (dm=mc–m

max

)

max≥mc

Yes

Use table 2 in chapter "Technical data" to calculate the total minimum floor area (A

min total

) (m2) required for the total refrigerant

charge (m

) at the selected installation height

(H).

min total≤Aroom A+Aroom B

Yes

Input from installer:

▪ Area of adjacent room B (A

room B

) (m2)

Room A: Room where CHYHBH is installed. Room B: Room adjacent to room A.

Room A Room B

CHYHBH

Special requirements for R32

Use the tables in "15.4 Maximum refrigerant charge allowed in a

room: indoor unit" on page 90, "15.5 Minimum floor area: indoor unit" on page 92, "15.6 Minimum venting opening area for natural ventilation: indoor unit"on page 93 to calculate the needed values

to make sure that your appliance is installed correctly.

Installer reference guide

Daikin hybrid for multi heat pump – heat pump module

CHYHBH05+08AA + EHYKOMB33A

4P471761-1 – 2016.12

B (kg)

(m2)

100

1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5

H=500, 600, 700 mm

H=800 mm

H=1000 mm

H=900 mm

H=1100 mm

H=1200 mm

H=1300 mm

H=1400 mm

H=1500 mm

H=1600 mm

H=1700 mm

H=1800 mm

A Minimum floor area for hybrid unit (m2)

ØiØ

ØpØ

B Total refrigerant charge in the system (kg) H The height measured from the floor to the bottom of the

casing. The graph is based on the height measured from the floor to the flare nut.

Do NOT install the unit in places such as:

▪ In places where a mineral oil mist, spray or vapour may be

present in the atmosphere. Plastic parts may deteriorate and fall off or cause water leakage.

▪ Sound sensitive areas (e.g. near a bedroom), so that the

operation noise will cause no trouble.

▪ The foundation must be strong enough to bear the weight of the

unit. Take the weight of the unit with a domestic hot water tank full of water into account. Make sure, in the event of a water leak, water cannot cause any damage to the installation space and surroundings.

▪ In places with high humidity (max. RH=85%), for example a

bathroom.

▪ In places where frost is possible. Ambient temperature around the

indoor unit should be >5°C.

▪ The indoor unit is designed for indoor installation only (in a

technical room or similar) and for ambient temperatures ranging 5~30°C in heating mode.

6.3 Preparing refrigerant piping

6 Preparation

4MXM80

Liquid piping 4× Ø6.4mm (1/4")

Gas piping 1× Ø9.5mm (3/8")

1× Ø12.7mm (1/2")

2× Ø15.9mm (5/8")

5MXM90

Liquid piping 5× Ø6.4mm (1/4")

Gas piping 2× Ø9.5mm (3/8")

1× Ø12.7mm (1/2")

2× Ø15.9mm (5/8")

▪ Piping temper grade and thickness:

Outer diameter

Temper grade Thickness (t)

(Ø)

6.4mm (1/4") Annealed (O) ≥0.8mm

9.5mm (3/8") ≥1mm

12.7mm (1/2") ≥0.8mm

15.9mm (5/8") ≥1mm

(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.

Usage of reducers might be required based on the outdoor unit. See

"7.6.8 Usage of reducers to connect the piping to the outdoor unit"on page28 for more information.

6.3.2 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

Pipe outer diameter

(Øp)

6.4mm (1/4") 8~10mm ≥10mm

9.5mm (3/8") 10~14mm ≥13mm

12.7mm (1/2") 14~16mm ≥10mm

15.9mm (5/8") 16~20mm ≥13mm

Insulation inner

diameter (Øi)

(a)

Insulation thickness

(t)

6.3.1 Refrigerant piping requirements

INFORMATION

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

▪ Piping material: Phosphoric acid deoxidised seamless copper.

▪ Piping diameter:

3MXM40 + 3MXM52 + 3MXM68

Liquid piping 3× Ø6.4mm (1/4")

Gas piping 1× Ø9.5mm (3/8")

2× Ø12.7mm (1/2")

4MXM68

Liquid piping 4× Ø6.4mm (1/4")

Gas piping 2× Ø9.5mm (3/8")

2× Ø12.7mm (1/2")

CHYHBH05+08AA + EHYKOMB33A Daikin hybrid for multi heat pump – heat pump module 4P471761-1 – 2016.12

If the temperature is higher than 30°C and the humidity is higher than RH 80%, the thickness of the insulation materials should be at least 20 mm to prevent condensation on the surface of the insulation.

Use separate thermal insulation pipes for the gas and liquid refrigerant piping.

6.4 Preparing water piping

6.4.1 Water circuit requirements

INFORMATION

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

Installer reference guide

6 Preparation

89°C

RAD1 RAD2 RAD3

95°C

65°C

a b d e

j k

c f g

FCU1

FCU2

FCU3

NOTICE

In case of plastic pipes, make sure they are fully oxygen diffusion tight according to DIN 4726. The diffusion of oxygen into the piping can lead to excessive corrosion.

▪ Connecting piping – Legislation. Make all piping connections in

accordance with the applicable legislation and the instructions in the "Installation" chapter, respecting the water inlet and outlet.

▪ Connecting piping – Force. Do NOT use excessive force when

connecting the piping. Deformation of the piping can cause malfunctioning of the unit.

▪ Connecting piping – Tools. Only use appropriate tooling to

handle brass, which is a soft material. If NOT, pipes will get damaged.

▪ Connecting piping – Air, moisture, dust. If air, moisture or dust

gets into the circuit, problems may occur. To prevent this:

▪ Only use clean pipes

▪ Hold the pipe end downwards when removing burrs.

▪ Cover the pipe end when inserting it through a wall, to prevent

dust and/or particles entering the pipe.

▪ Use a decent thread sealant to seal connections.

▪ Closed circuit. Use the indoor unit ONLY in a closed water

system. Using the system in an open water system will lead to excessive corrosion.

▪ Piping length. It is recommended to avoid long runs of piping

between the domestic hot water tank and the hot water end point (shower, bath,…) and to avoid dead ends.

▪ Piping diameter. Select the water piping diameter in relation to

the required water flow and the available external static pressure of the pump. See "15 Technical data"on page84 for the external static pressure curves of the indoor unit.

▪ Field supply components – Water. Only use materials that are

compatible with water used in the system and with the materials used in the indoor unit.

▪ Field supply components – Water pressure and temperature.

Check that all components in the field piping can withstand the water pressure and water temperature.

▪ Water temperature – Heat pump convectors. In case heat

pump convectors are connected, the temperature of the water in the convectors should NOT exceed 65°C. If necessary, install a thermostatic controlled valve.

▪ Water temperature – Underfloor heating loops. In case

underfloor heating loops are connected, install a mixing station to prevent water that is too hot from entering the underfloor heating circuit.

▪ Water temperature. All installed piping and piping accessories

(valve, connections,…) MUST withstand the following temperatures:

INFORMATION

The following illustration is an example and might NOT match your system layout.

a Outdoor unit b Indoor unit c Heat exchanger d Boiler e Bypass valve

f Pump g Shut-off valve (field supply) h Motorised 3-way valve (in option kit)

i Collector j Domestic hot water tank (optional)

k Heat exchanger coil

l Direct expansion unit

FCU1...3 Fan coil unit (optional)

RAD1…3 Radiator (field supply)

▪ Drainage – Low points. Provide drain taps at all low points of the

system in order to allow complete drainage of the water circuit.

▪ Air vents. Provide air vents at all high points of the system, which

must also be easily accessible for servicing. An automatic air purge is provided in the indoor unit. Check that the air purge is NOT tightened too much, so that automatic release of air in the water circuit is possible.

▪ Zn-coated parts. Never use Zn-coated parts in the water circuit.

Because the unit's internal water circuit uses copper piping, excessive corrosion may occur.

▪ Non-brass metallic piping. When using non-brass metallic

piping, insulate the brass and non-brass properly so that they do NOT make contact with each other. This to prevent galvanic corrosion.

▪ Valve – Separating circuits. When using a 3-way valve in the

water circuit make sure that the domestic hot water circuit and the floor heating circuit is fully separated.

▪ Valve – Change‑over time. When using a 2-way valve or a 3-way

valve in the water circuit, the maximum change-over time of the valve must be 60seconds.

▪ Filter. It is strongly recommended to install an additional filter on

the heating water circuit. Especially to remove metallic particles from foul heating piping, it is recommended to use a magnetic or cyclone filter, which can remove small particles. Small particles may damage the unit and will NOT be removed by the standard filter of the heat pump system.

▪ Dirt separator – Old heating installations. In case of old heating

installations, it is recommended to use a dirt separator. Dirt or sediment from the heating installation can damage the unit and reduce its lifetime. The domestic hot water circuit can also be protected by a filter to prevent failure during domestic hot water operation.

▪ Domestic hot water tank – Capacity. To avoid stagnation of

water, it is important that the storage capacity of the domestic hot water tank meets the daily consumption of domestic hot water.

Installer reference guide

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4P471761-1 – 2016.12

▪ Domestic hot water tank – After installation. Immediately after

c d

a b

RAD1 RAD2 RAD3

95°C

a b d e

c f

g i

0.3

0.4

0.6

0.8

1.2

1.4

1.6

1.8

2.2

2.4

2.6

100 150 200 250 300 350 400 4500

installation, the domestic hot water tank must be flushed with fresh water. This procedure must be repeated at least once a day the first 5 consecutive days after installation.

▪ Domestic hot water tank – Standstills. In cases where during

longer periods of time there is no consumption of hot water, the equipment MUST be flushed with fresh water before usage.

▪ Domestic hot water tank – Disinfection. For the disinfection

function of the domestic hot water tank, see "Domestic hot water

control: advanced"on page57.

▪ Domestic hot water tank – 3rd party tank installation. When

installing a 3rd party tank, take following requirements into account:

▪ coil size should be ≥0.45m2,

▪ water piping is ≥3/4" to avoid high pressure drops,

▪ a sensor pocket is foreseen at a correct place (above the

heating coil). The tank sensor should not be in contact with water.

▪ maximum tank set point for a 3rd party tank is 60°C,

▪ in case of an electrical heater in the tank, make sure it is

installed correctly (above the heating coil). Refer to the installation manual of the domestic hot water tank for more information.

▪ Thermostatic mixing valves. In accordance with the applicable

legislation, it may be necessary to install thermostatic mixing valves.

▪ Hygienic measures. The installation must be in compliance with

the applicable legislation and may require additional hygienic installation measures.

▪ Recirculation pump. In accordance with the applicable

legislation, it may be required to connect a recirculation pump in between the hot water end point and the recirculation connection of the domestic hot water tank.

6 Preparation

a Outdoor unit b Indoor unit c Heat exchanger d Boiler e Bypass valve

f Pump g Shut‑off valve (field supply) h Collector

i Bypass valve (field supply)

RAD1…3 Radiator (field supply)

Maximum water volume

Use the following graph to determine the maximum water volume for the calculated pre-pressure.

6.4.2 Formula to calculate the expansion vessel

The pre-pressure (Pg) of the vessel depends on the installation height difference (H):

Pg=0.3+(H/10) (bar)

6.4.3 To check the water volume and flow rate

The indoor unit has an expansion vessel of 10litre with a factory set pre-pressure of 1bar.

To make sure that the unit operates properly:

▪ You must check the minimum and maximum water volume.

▪ You might need to adjust the pre-pressure of the expansion

vessel.

CHYHBH05+08AA + EHYKOMB33A Daikin hybrid for multi heat pump – heat pump module 4P471761-1 – 2016.12

a Recirculation connection

b Hot water connection

c Shower

d Recirculation pump

pre-pressure

a Pre-pressure (bar) b Maximum water volume (l)

Maximum leaving water temperature of 55°C for underfloor heating applications

Maximum leaving water temperature of 80°C for radiator applications

Example in case of an underfloor heating application: Maximum water volume and expansion vessel pre-pressure in case of 55°C

Installation

height

difference

(a)

≤280l >280l

≤7m No pre-pressure

adjustment is required.

Water volume

Do the following:

▪ Decrease the pre-

pressure.

▪ Check if the water

volume does NOT exceed the maximum allowed water volume.

Installer reference guide

6 Preparation

Installation

height

difference

>7m Do the following:

Example in case of a radiator application: Maximum water volume and expansion vessel pre-pressure in case of 80°C

Installation

difference

≤7m No pre-pressure

>7m Do the following:

Minimum flow rate

Check that the minimum flow rate (required during defrost/backup heater operation) in the installation is guaranteed in all conditions.

Minimum required flow rate

05+08 models 9l/min

See the recommended procedure as described in "10.4 Checklist

during commissioning"on page70.

(a)

▪ Increase the pre-

▪ Check if the water

(a) This is the height difference (m) between the highest point

of the water circuit and the indoor unit. If the indoor unit is at the highest point of the installation, the installation height is 0m.

height

(a)

adjustment is required.

▪ Increase the pre-

▪ Check if the water

(a) This is the height difference (m) between the highest point

of the water circuit and the indoor unit. If the indoor unit is at the highest point of the installation, the installation height is 0m.

NOTICE

When circulation in each or certain space heating loops is controlled by remotely controlled valves, it is important that the minimum flow rate is guaranteed, even if all valves are closed. In case the minimum flow rate cannot be reached, a flow error 7H will be generated (no heating/operation).

≤280l >280l

pressure.

volume does NOT exceed the maximum allowed water volume.

≤140l >140l

pressure.

volume does NOT exceed the maximum allowed water volume.

Water volume

The expansion vessel of the indoor unit is too small for the installation. In this case, it is recommended to install an extra vessel outside the unit.

Water volume

Do the following:

▪ Decrease the pre-

pressure.

▪ Check if the water

volume does NOT exceed the maximum allowed water volume.

The expansion vessel of the indoor unit is too small for the installation. In this case, it is recommended to install an extra vessel outside the unit.

▪ Inappropriate setting of the expansion vessel pre-pressure will

lead to malfunction of the system.

Changing the pre-pressure of the expansion vessel should be done by releasing or increasing nitrogen pressure through the Schrader valve of the expansion vessel.

a Schrader valve

6.4.5 To check the water volume: Examples

Example 1

The indoor unit is installed 5 m below the highest point in the water circuit. The total water volume in the water circuit is 100l.

No actions or adjustments are required for either underfloor heating loops or radiators.

Example 2

The indoor unit is installed at the highest point in the water circuit. The total water volume in the water circuit is 350 l. Radiators are installed, so use the graph of 80°C.

Actions:

▪ Because the total water volume (350l) is more than the default

water volume (140l), the pre-pressure must be decreased.

▪ The required pre-pressure is:

Pg = (0.3+(H/10))bar = (0.3+(0/10))bar=0.3bar.

▪ The corresponding maximum water volume at 0.3 bar is 205 l.

(See the graph in the chapter above).

▪ Because 350 l is more than 205l, the expansion vessel is too

small for the installation. Therefore install an extra vessel outside the installation.

6.5 Preparing electrical wiring

6.5.1 About preparing electrical wiring

INFORMATION

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

6.4.4 Changing the pre-pressure of the expansion vessel

NOTICE

Only a licensed installer may adjust the pre-pressure of the expansion vessel.

When changing the default pre-pressure of the expansion vessel (1bar) is required, take following guidelines into account:

▪ Only use dry nitrogen to set the expansion vessel pre-pressure.

Installer reference guide

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4P471761-1 – 2016.12

6 Preparation

4 7 8 9 10 14 15

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 authorized

Item Description Wires Maximum

electrician and must comply with the applicable legislation.

▪ Make electrical connections to the fixed wiring.

Outdoor unit and indoor unit power supply

1 Power supply for

▪ All components procured on the site and all electrical

construction must comply with the applicable legislation.

2 Power supply and

WARNING

ALWAYS use multicore cable for power supply cables.

6.5.2 Overview of electrical connections except external actuators

Power supply

3 Power supply gas

User interface

4 User interface 2

Optional equipment

5 3‑way valve 3 100mA

6 Domestic hot water

7 Room thermostat/heat

8 Outdoor ambient

9 Indoor ambient

Field supplied components

10 Shut-off valve 2 100mA

11 Domestic hot water

a Power supply 1 Power supply for outdoor unit 2 Power supply and interconnection cable to indoor unit 3 Power supply for gas boiler

12 Alarm output 2

13 Changeover to external

14 Space heat operation

6.5.3 Overview of electrical connections for external and internal actuators

The following illustration shows the required field wiring.

INFORMATION

The following illustration is an example and might NOT match your system layout.

CHYHBH05+08AA + EHYKOMB33A Daikin hybrid for multi heat pump – heat pump module 4P471761-1 – 2016.12

15 Safety thermostat 2

a Outdoor unit b Indoor unit c Gas boiler d Domestic hot water tank

running

current

2+GND

(a)

outdoor unit

3+GND

(g)

interconnection cable to indoor unit

2+GND

(c)

boiler

(f)

(d)

tank thermistor

3 or 4 100mA

pump convector

(b)

temperature sensor

(b)

temperature sensor

(b)

pump

(b)

heat source control

(b)

control

(e)

(a) Refer to name plate on outdoor unit. (b) Minimum cable section 0.75mm². (c) Use the cable supplied with the boiler. (d) The thermistor and connection wire (12m) are delivered

with the domestic hot water tank.

(e) Cable section 0.75mm² till 1.25mm²; maximum length:

50m. Voltage-free contact shall ensure the minimum applicable load of 15VDC, 10mA.

(f) Cable section 0.75mm² till 1.25mm²; maximum length:

500m. Applicable for both single user interface and dual user interface connection.

(g) Cable section 1.5mm2; maximum length: 50m.

Installer reference guide

(b)

7 Installation

2×

NOTICE

More technical specifications of the different connections are indicated on the inside of the indoor unit.

7 Installation

7.1 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:

1 Mounting the outdoor unit.

2 Mounting the indoor unit.

3 Mounting the gas boiler.

4 Connecting the condensate pipe.

5 Connecting the refrigerant piping.

6 Checking the refrigerant piping.

7 Charging refrigerant.

8 Connecting the water piping.

9 Connecting the electrical wiring.

10 Connecting the gas piping.

11 Connecting the boiler to the flue gas system.

12 Finishing the outdoor installation.

13 Finishing the indoor installation.

14 Finishing the gas boiler installation.

INFORMATION

Depending on the units and/or the installation conditions, it might be necessary to connect electrical wiring before you can charge refrigerant.

4 Remove the upper and lower screw on the front panel of the

switch box.

5 The front panel of the switch box will open.

When the boiler is installed and access to the switch box is required, please follow the steps below.

6 Remove the upper and lower screw on the side panel of the

switch box.

7 Remove the switch box from the unit.

8 Hook the switch box to the side of the unit with the hooks

foreseen on the switch box.

INFORMATION

It is NOT possible to connect an indoor unit of 1 room only. Be sure to connect indoor units of at least 2 rooms.

The Hybrid for Multi is considered as 1 room connection.

For the correct combination, see the combination table and the installation manual of the Hybrid for Multi.

7.2 Opening the units

7.2.1 About opening the units

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

▪ 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.

7.2.2 To open the switch box cover of the indoor unit

1 Remove the side panel at the right side of the indoor unit. The

side panel is fixed at the bottom with 1 screw.

2 Remove the upper and lower screw on the side panel of the

switch box.

3 The right panel of the switch box will open.

Installer reference guide

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CHYHBH05+08AA + EHYKOMB33A

4P471761-1 – 2016.12

7 Installation

21 3

2×

30kg

7.2.3 To open the gas boiler

1 Open the display cover.

2 Unscrew both screws.

3 Tilt the front panel towards you and remove the front panel.

7.3.2 Precautions when mounting the indoor unit

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

7.3.3 To install the indoor unit

1 Put the installation pattern (see box) on the wall and follow the

steps as shown below.

2 Fix the wall bracket to the wall with 2 M8 bolts.

7.2.4 To open the switch box cover of the gas boiler

1 Open the gas boiler, see "7.2.3 To open the gas boiler" on

page23.

2 Pull the boiler controller unit forwards. The boiler controller will

tip downwards to provide access.

7.3 Mounting the indoor unit

3 Lift the unit.

7.3.1 About mounting the indoor unit

When

You have to mount the outdoor and indoor unit before you can connect the refrigerant and water piping.

Typical workflow

Mounting the indoor unit typically consists of the following stages:

1 Installing the indoor unit.

CHYHBH05+08AA + EHYKOMB33A Daikin hybrid for multi heat pump – heat pump module 4P471761-1 – 2016.12

4 Tilt the top of the unit against the wall at the position of the wall

bracket.

Installer reference guide

7 Installation

36kg

5 Slide the bracket on the back of the unit over the wall bracket.

Make sure the unit is fixed properly. You can additionally fix the bottom side of the unit with 2 M8 bolts.

6 The unit is mounted to the wall.

6 Slide the boiler downwards to fix the boiler bracket onto the

indoor unit mounting bracket.

7.4 Mounting the gas boiler

INFORMATION

Removing the top plate of the indoor unit makes it easier to install the gas boiler.

7.4.1 To install the gas boiler

1 Lift the unit from the package.

2 Remove the top plate from the indoor unit.

3 The bracket to mount the boiler on the heat pump module is

already mounted to the backside of the gas boiler.

4 Lift the boiler. One person lifts the gas boiler on the left side (left

hand on the top and right hand on the bottom) and another person lift the gas boiler on the right side (left hand on the bottom and right hand on the top).

5 Tilt the top of the unit at the position of the indoor unit mounting

bracket.

7 Make sure the gas boiler is fixed properly and well aligned with

the indoor unit.

7.4.2 To install the condensate trap

INFORMATION

The boiler is provided with a 25mm flexible pipe on the condensate trap.

Prerequisite: The boiler MUST be opened before installing the condensate trap.

1 Fit the flexible tube (accessory) to the condensate trap outlet.

2 Fill the condensate trap with water.

3 Slide the condensate trap as far as possible upwards onto the

condensate drain connector below the gas boiler.

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4P471761-1 – 2016.12

4 Connect the flexible tube (where applicable with the overflow

Ø22 mm

≥75 mm

Ø22 mm

100 mm

pipe from the pressure relief valve) to the drain via an open connection.

7 Installation

7.5 Condensate pipe work

INFORMATION

The condensate discharge system MUST be made of plastic, no other materials may be used. The discharge duct MUST have a minimum gradient of 5~20 mm/m. Condensate discharge via the gutter is NOT allowed due to risk of frost and the possible damage to the materials.

7.5.1 Internal connections

If possible, the condensate drain pipe should be routed and terminated so that the condensate drains away from the boiler under gravity to a suitable internal foul water discharge point such as an internal soil and vent stack. A suitable permanent connection to the foul waste pipe should be used.

a Condensate discharge from boiler b Soil and vent stack c Minimum 450mm and up to 3 storeys

If the first option is NOT possible, an internal kitchen or bathroom

WARNING

▪ ALWAYS fill the condensate trap with water and place

it on the boiler before powering up the boiler. See illustration below.

▪ NOT placing or filling up the condensate trap may

cause flue gases to come into the installation room and can lead to dangerous situations!

▪ In order to place the condensate trap, the front cover

MUST be pulled forward or removed entirely.

NOTICE

It is recommended that any external condensate pipe is insulated and increased to Ø32mm in order to prevent the condensate from freezing.

waste pipe, washing machine pipe can be used. Make sure that the condensate drain pipe is connected downstream of the waste trap.

a Condensate discharge from boiler b Soil and vent stack c Sink or basin with integrate overflow d 75mm waste trap and air break

Condensate pump

Where gravity discharge to an internal termination is NOT physically possible or where very long internal runs of drainage pipe would be required to reach a suitable discharge point, condensate should be removed by using a proprietary condensate pump (field supply).

The pump outlet pipe should discharge to a suitable internal foul water discharge point such as an internal soil and vent stack, internal kitchen, bathroom waste pipe, or washing machine waste pipe. A suitable permanent connection to the foul waste pipe should be used.

CHYHBH05+08AA + EHYKOMB33A Daikin hybrid for multi heat pump – heat pump module 4P471761-1 – 2016.12

Installer reference guide

7 Installation

Ø22 mm

≥75 mm

a Condensate discharge from boiler b Soil and vent stack c Sink or basin with integrated overflow d 75mm waste trap and air break e Condensate pump

7.6.2 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

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.

7.5.2 External connections

If an externally condensate drainage pipe is used, following measures should be made to prevent freezing:

▪ The pipe should be run internally as far as possible before going

to the outside. The pipe diameter should be increased to a minimum inner diameter of 30 mm (typically outer diameter of 32mm) before it goes through the wall.

▪ The external run should be kept as short as possible, taking the

most vertical route possible to the discharge point. Take into account that there are no horizontal section in which condensate might collect.

▪ The external pipe should be insulated. Use a suitable waterproof

and weather proof insulation ("ClassO" pipe insulation is suitable for this purpose).

▪ The use of fittings and elbows should be kept to a minimum. Any

internal burrs should be removed so that the internal pipe section is as smooth as possible.

7.6 Connecting the refrigerant piping

7.6.1 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

▪ Insulating the refrigerant piping

▪ Keeping in mind the guidelines for:

▪ Pipe bending

▪ Flaring pipe ends

▪ Brazing

▪ Using the stop valves

CAUTION

▪ Use the flare nut fixed to the main unit.

▪ To prevent gas leakage, apply refrigeration oil only to

the inside of the flare. Use refrigeration oil for R32.

▪ Do not reuse joints.

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.

Installer reference guide

CHYHBH05+08AA + EHYKOMB33A

Daikin hybrid for multi heat pump – heat pump module

4P471761-1 – 2016.12

7 Installation

a b

R=0.4~0.8

45°

±2

90°

±2

a b

a b c d e

c d

WARNING

Connect the refrigerant piping securely before running the compressor. If the refrigerant piping is not connected and the stop valve is open when the compressor is run, air will be sucked in. This will cause abnormal pressure in the refrigeration cycle, which may result in equipment damage and even injury.

7.6.3 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.

▪ 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.

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 illustration.

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.

7.6.6 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 Torque wrench

b Spanner

c Piping union

d Flare nut

Piping size

(mm)

Tightening

torque (N•m)

Flare

dimensions (A)

Flare shape

(mm)

Ø6.4 14.2~17.2 8.7~9.1

Ø9.5 32.7~39.9

Ø12.7 49.5~60.3 16.2~16.6

Ø15.9 61.8~75.4 19.3~19.7

7.6.4 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).

7.6.5 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.

7.6.7 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 illustration shows each part required in handling the

valve.

a Cut exactly at right angles.

b Remove burrs.

CHYHBH05+08AA + EHYKOMB33A Daikin hybrid for multi heat pump – heat pump module 4P471761-1 – 2016.12

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

Installer reference guide

7 Installation

▪ 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.

To open/close the stop valve

1 Remove the valve cover.

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

into the valve stem and turn the valve stem:

Item Tightening torque (N∙m)

Service port cap 10.8~14.7

7.6.8 Usage of reducers to connect the piping to the outdoor unit

For connecting the piping to the outdoor unit, you (possibly) need reducers. Please consult following table to see where you need which reducer.

Port 3MXM52

4MXM68 4MXM80 5MXM90

3MXM68

A CHYHBH05

B CHYHBH05

C CHYHBH05

(a)

CHYHBH05

(b)

CHYHBH05

(b)

CHYHBH05

D — CHYHBH05

(a)

CHYHBH05

CHYHBH08

(a)

CHYHBH05

CHYHBH08

(b)

CHYHBH05

CHYHBH08

(b)

CHYHBH05

CHYHBH08

(a)

CHYHBH05

(a)

CHYHBH08

(b)

CHYHBH05

(b)

CHYHBH08

CHYHBH05

CHYHBH08

CHYHBH05

CHYHBH08

E — — — CHYHBH05

CHYHBH08

— Connection of CHYHBH05 or CHYHBH08 is NOT possible. (a) Use reducers number 5 and 6 (Ø15.9mm to Ø9.5mm). (b) Use reducers number 1 and 3 (Ø15.9mm to Ø12.7mm).

7.6.9 To connect the refrigerant piping to the indoor unit

1 Connect the liquid stop valve from the outdoor unit to the

refrigerant liquid connection of the indoor unit.

(a)

(b)

Counterclockwise to open. Clockwise to close.

3 When the valve stem cannot be turned any further, stop turning.

The valve is now opened/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

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.

a Refrigerant liquid connection b Refrigerant gas connection

2 Connect the gas stop valve from the outdoor unit to the

refrigerant gas connection of the indoor unit.

NOTICE

It is recommended that the refrigerant piping between indoor and outdoor unit is installed in a ducting or the refrigerant piping is wrapped with finishing tape.

Installer reference guide

Daikin hybrid for multi heat pump – heat pump module

CHYHBH05+08AA + EHYKOMB33A

4P471761-1 – 2016.12

7 Installation

7.7 Checking the refrigerant piping

7.7.1 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.

7.7.2 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 the service port of the

gas stop valve.

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

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

7.7.3 To check for leaks

NOTICE

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

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.

7.7.4 To perform vacuum drying

Connect the vacuum pump and manifold as follows:

a Pressure meter b Gauge manifold c Low-pressure valve (Lo) d High-pressure valve (Hi) e Charging hoses

f Vacuum pump g Service port h Valve lids

i Gas stop valve

j Liquid stop valve

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 Evacuate for at least 2 hours to a pressure on the manifold of

−0.1MPa (−1bar).

4 After turning OFF the pump, 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

Be sure to open the gas stop valve after piping installation and vacuuming. Running the system with the valve closed, the compressor may break down.

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.

7.8 Charging refrigerant

7.8.1 About charging refrigerant

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

CHYHBH05+08AA + EHYKOMB33A Daikin hybrid for multi heat pump – heat pump module 4P471761-1 – 2016.12

Installer reference guide

7 Installation

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.

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.

7.8.2 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

NOTICE

In Europe, the greenhouse gas emissions of the total refrigerant charge in the system (expressed as tonnes CO2-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

Please contact your installer for more information.

WARNING: FLAMMABLE MATERIAL

The refrigerant inside this unit is mildly flammable.

WARNING

▪ Do NOT pierce or burn refrigerant cycle parts.

▪ 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.

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 from which you purchased the unit.

Do not use the unit until a service person confirms that the portion from which the refrigerant leaked is repaired.

7.8.3 Precautions when charging refrigerant

INFORMATION

Also read the precautions and requirements in the following chapters:

▪ General safety precautions

▪ Preparation

7.8.4 To determine the additional refrigerant amount

INFORMATION

Piping length is the one way length of liquid piping.

If the total liquid

piping length is…

≤30m Do NOT add additional refrigerant.

>30m R=(total length (m) of liquid

piping⁠–⁠30m)×0.020

R=Additional charge (kg) (rounded in units of 0.1kg)

For the maximum allowable refrigerant charge amount, see the outdoor unit installation manual.

Then…

7.8.5 To determine the complete recharge amount

INFORMATION

If a complete recharge is necessary, the total refrigerant charge is: the factory refrigerant charge (see unit name plate) + the determined additional amount.

7.8.6 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.

Installer reference guide

Daikin hybrid for multi heat pump – heat pump module

CHYHBH05+08AA + EHYKOMB33A

4P471761-1 – 2016.12

+ 78 hidden pages

Daikin CHYHBH05AA, CHYHBH08AA, EHYKOMB33A Installer reference guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of contents

1 General safety precautions

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

1.2.3 Refrigerant

1.2.4 Water

1.2.5 Electrical

2 About the product

1.2.6 Gas

1.2.7 Gas exhaust

1.2.8 Local legislation

3 About the documentation

3.1 About this document

3.2 Installer reference guide at a glance

4 About the box

4.1 Overview: About the box

4.2 Indoor unit

4.2.1 To unpack the indoor unit

4.2.2 To remove the accessories from the indoor unit

4.3 Gas boiler

4.3.1 To unpack the gas boiler

5 About the units and options

5.1 Overview: About the units and options

5.2 Identification

5.2.1 Identification label: Indoor unit

4.3.2 To remove the accessories from the gas boiler

5.3 Combining units and options

5.3.1 Possible options for the indoor unit

5.2.2 Identification label: gas boiler

5.3.2 Possible options for the gas boiler

6 Preparation

5.3.3 Possible combinations of indoor unit and outdoor unit

5.3.4 Possible combinations of indoor unit and domestic hot water tank

6.1 Overview: Preparation

6.2.1 Installation site requirements of the indoor unit

6.2 Preparing installation site

6.3 Preparing refrigerant piping

6.3.2 Refrigerant piping insulation

6.3.1 Refrigerant piping requirements

6.4 Preparing water piping

6.4.1 Water circuit requirements

6.4.3 To check the water volume and flow rate

6.4.5 To check the water volume: Examples

6.5 Preparing electrical wiring

6.5.1 About preparing electrical wiring

6.4.4 Changing the pre-pressure of the expansion vessel

6.5.2 Overview of electrical connections except external actuators

6.5.3 Overview of electrical connections for external and internal actuators

7 Installation

7.1 Overview: Installation

7.2 Opening the units

7.2.1 About opening the units

7.2.2 To open the switch box cover of the indoor unit

7.2.3 To open the gas boiler

7.3.2 Precautions when mounting the indoor unit

7.3.3 To install the indoor unit

7.2.4 To open the switch box cover of the gas boiler

7.3 Mounting the indoor unit

7.3.1 About mounting the indoor unit

7.4 Mounting the gas boiler

7.4.1 To install the gas boiler

7.4.2 To install the condensate trap

7.5 Condensate pipe work

7.5.1 Internal connections

Condensate pump

7.6.2 Precautions when connecting the refrigerant piping

7.5.2 External connections

7.6 Connecting the refrigerant piping

7.6.1 About connecting the refrigerant piping

7.6.3 Guidelines when connecting the refrigerant piping

7.6.6 To braze the pipe end

7.6.4 Pipe bending guidelines

7.6.5 To flare the pipe end