Daikin RKHH2E200AAV33, RKHH2E260AAV33, RKHH2E260PAAV33 Installation manuals

Installation Manual

Installation manual Domestic Hot Water Heat Pump - Monobloc type

RKHH2E200AAV33 RKHH2E260AAV33 RKHH2E260PAAV33

Domestic Hot Water Heat Pump

Monobloc type

English

RKHH2E-(P)AAV33 ROTEX Domestic Hot Water Heat Pump

2018.8

Installation manual 3

Installation Manual

RKHH2E-(P)AAV33

ROTEX Domestic Hot Water Heat Pump

2018.8

Table of contents

1 General safety precautions

.......... 5

1.1 About the documentation ......................... 5

1.1.1 Meaning of warnings and symbols 5

1.2 For the user ............................................. 5

1.3 For the installer ........................................ 6

1.3.1 General ...................................... 6

1.3.2 Installation site ............................ 6

1.3.3 Refrigerant ................................. 7

1.3.4 Water ..................................... 7

1.3.5 Electrical .................................... 8

1.4 Glossary ................................ ................. 9

2 Introduction

................................ 10

2.1 Units ..................................................... 10

2.2 Disclaimer ............................................. 10

2.3 Copyright .............................................. 10

2.4 Operating principle ................................. 10

2.5 Available versions and configurations ...... 11

3 Handling and transport

............... 11

4 Construction characteristics

....... 13

4.1 Technical characteristics ........................ 14

5 Important information

................. 16

5.1 Conformity with European regulations ..... 16

5.2 Degrees of protection provided by

enclosures ........................................ 16

5.3 Limitations of use ................................... 16

5.4 Operating limits ..................................... 16

5.5 Fundamental safety rules ....................... 16

5.6 Information on coolant used.................... 16

6 Installation and connections

....... 17

6.1 Preparation of the installation site ............ 17

6.2 Ventilation connection ............................ 17

6.2.1 Particular installation conditions .. 18

6.3 Device mounting and connection ............ 19

6.4 Water supply connections ...................... 19

6.4.1 Condense drain connections...... 20

6.5 Solar power system integration ............... 21

6.6 Electrical connections ............................ 22

6.6.1 Remote links............................. 22

6.7 Wiring diagram ...................................... 23

7 Commissioning ....................... 23

8 Operation and use

...................... 24

8.1 The User Interface ................................. 24

8.1.1 Interface keys and display ......... 24

8.1.2. Operating logic ......................... 25

8.1.3 Basic management ................... 25

8.2 Particular operations .............................. 31

8.2.1 List of equipment parameters ..... 32

9 Maintenance and cleaning

.......... 36

9.1 Resetting of safety equipment ................. 36

9.2 Quarterly inspections ............................. 37

9.3 Annual inspections ................................. 37

9.4 Cleaning of the ventilation filter ............... 37

9.5 Magnesium anodes ............................... 37

9.6 Emptying the boiler ................................ 37

10 Troubleshooting .................... 38

11 Disposal ................................. 38

12. Unit Fiche ................................... 39

RKHH2E-(P)AAV33 ROTEX Domestic Hot Water Heat Pump

2018.8

Installation manual 5

1 General safety

precautions

1.1 About the documentation

• The original documentation was 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 must be performed by an authorized installer.

1.1.1 Meaning of warnings and symbols

DANGER

Indicates a situation that results in serious

injury or death.

DANGER: RISK OF ELECTROCUTION

Indicates a situation that could result in

electrocution.

DANGER: RISK OF BURNING

Indicates a situation that could result in

burning because of extreme hot or cold temperatures.

DANGER: RISK OF EXPLOSION

Indicates a situation that could result in

explosion.

WARNING

Indicates a situation that could result in

serious injury or death.

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 user

• If you are not sure how to operate the unit, contact your installer.

• This appliance can be used by children aged 8 years or older and by people with reduced physical, sensory or mental capabilities or lack of experience and knowledge, if they are supervised or have received sufficient instructions concerning safe use of the appliance and they understand the hazards involved. Children must not play with the appliance. Cleaning and user maintenance must not be carried out by children without supervision.

WARNING

To prevent electric shocks or fire:

- Do NOT rinse the unit.

- Do NOT operate the unit with wet hands.

- Do NOT place any objects containing water on the unit.

NOTICE

- Do NOT place any objects or equipment on top of the unit.

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

- Units are marked with the following symbol:

This means that electrical and electronic units must not

be mixed with unsorted household waste. Do NOT try to dismantle the system yourself: the dismantling of the system, treatment of the refrigerant, of oil and of other parts must be carried out by an authorized installer and must comply with applicable legislation.

Units must be treated at a specialized treatment facility

for reuse, recycling and recovery. By ensuring this unit is disposed of correctly, you will help to prevent potential negative consequences for the environment and human health. For more information, contact your installer or local authority.

Installation Manual

RKHH2E-(P)AAV33

ROTEX Domestic Hot Water Heat Pump

2018.8

1.3 For the installer

1.3.1 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 can 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 (in addition to the instructions described in the Daikin documentation).

CAUTION

Wear adequate personal protective

equipment (protective gloves, safety

glasses, …) when installing, maintaining

or servicing the system.

DANGER: RISK OF BURNING

• Do NOT touch the refrigerant piping, water piping or internal parts during and immediately after operation. These may be too hot or too cold. Wait for the parts to return to their normal temperature. If you need to touch them anyway, wear protective gloves.

• Do NOT touch any accidental leaking refrigerant.

WARNING

Provide adequate measures to prevent the unit

from being used as a shelter by small animals. Small animals that come into 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

preferably carried out under dry weather conditions to avoid water ingress.

In accordance with the applicable legislation, it may be

necessary to provide a logbook with the unit containing at least: information on maintenance, repair work, results of tests, stand-by periods, …

Also, following information (at least) must appear on the

unit where it can be read:

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

• Name and address of fire department, police and hospital

• Name, address and day and night telephone numbers for obtaining service

In Europe, EN378 provides the necessary guidance for

this logbook.

1.3.2 Installation site

• Provide sufficient space around the unit for servicing and air circulation.

• Make sure the installation site withstands the unit's weight and vibration.

• Make sure the area is well ventilated. Do NOT block any ventilation openings.

• Make sure the unit is level.

Do NOT install the unit in the following places:

• Potentially explosive atmospheres.

• In areas with machinery that emits

electromagnetic waves. Electromagnetic waves may disturb the control system and cause the equipment to malfunction.

• In areas with a risk of fire due to the leakage of flammable gases (example: thinner or gasoline), carbon fibre, ignitable dust.

• In areas where corrosive gas (such as sulphurous acid gas) is produced. Corrosion of copper pipes or soldered parts may cause the refrigerant to leak.

RKHH2E-(P)AAV33 ROTEX Domestic Hot Water Heat Pump

2018.8

Installation manual 7

1.3.3 Refrigerant

If applicable. Consult the installation manual of your

application for more information.

WARNING

During tests, NEVER pressurize the unit with

a pressure higher than the allowed maximum (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 when refrigerant gas comes into contact with fire.

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 in the outdoor unit. Possible consequence: Self-combustion and explosion of the compressor because of air entering the operating compressor.

• Use a separate recovery system to ensure that the unit's compressor does NOT need to operate.

WARNING

Always recover the refrigerant. Do NOT throw

it out directly into the environment. Use a vacuum pump to evacuate the installation.

NOTICE

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

• When the refrigerant system needs to be opened, refrigerant must be treated according to the applicable legislation.

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, consult the nameplate of the unit. It mentions the type of refrigerant and required amount.

• The unit is factory charged with refrigerant.

• Only use tools allowed 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:

Then

A siphon tube is present

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

Charge with the cylinder

upright.

A siphon tube is NOT

present

Charge with the cylinder

upside down.

• Open refrigerant cylinders slowly.

• Charge the refrigerant in liquid form. Adding it in

gas form may prevent the unit from normal operation.

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.

1.3.4 Water

If applicable. Consult the installation manual of your

application for more information.

NOTICE

Make sure water quality complies with EU

directive 98/83 EC.

Installation Manual

RKHH2E-(P)AAV33

ROTEX Domestic Hot Water Heat Pump

2018.8

1.3.5 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 touch electrical components. For the location of the terminals, consult 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, shall 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 provided with the unit.

• NEVER squeeze bundled cables and make sure they do not come into contact with the piping or 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 from 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.

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 the unit.

RKHH2E-(P)AAV33 ROTEX Domestic Hot Water Heat Pump

2018.8

Installation manual 9

1.4 Glossary

Dealer

Sales distributor for the unit.

Authorized installer

Technical skilled person who is qualified to install the

unit.

User

Person who is owner of the unit and/or operates the

unit.

Applicable legislation

All international, European, national and local

directives, laws, regulations and/or codes that are relevant and applicable to a certain unit or domain.

Service company

Qualified company which can perform or coordinate

the required service to the unit.

Installation manual

Instruction manual designed for a certain unit or

application, explaining how to install, configure and maintain it.

Operation manual

Instruction manual designed for a certain unit or

application, explaining how to operate it.

Accessories

Labels, manuals, information sheets and equipment

that are provided with the unit and need to be installed according to the instructions in the accompanying documentation.

Optional equipment

Equipment made or approved by Daikin that can be

combined with the unit according to the instructions in the accompanying documentation.

Field supply

Equipment not made by Daikin that can be combined

with the unit according to the instructions in the accompanying documentation.

Installation Manual

RKHH2E-(P)AAV33

ROTEX Domestic Hot Water Heat Pump

2018.8

2 Introduction

This installation and maintenance manual is to be

considered an integral part of the present heat pump (hereafter referred to as equipment).

The manual must be kept for future reference until the

heat pump itself has been dismantled. This manual is intended for both the specialised installer (installers – maintenance technicians) as well as for the end user. It includes descriptions of the installation modes to be complied with in order to achieve a correct and safe operation of the equipment, as well as methods of use and maintenance.

This manual must accompany the equipment to its new

destination in case of sale or change of owner of the equipment.

Before installing and/or using the equipment, read this

instruction manual carefully and pay attention to chapter 0 (regarding safety) in particular.

The manual must be kept together with the equipment

and, in any case, it must always be at the disposal of the qualified personnel in charge of installation and maintenance.

The following symbols are used in the manual, to

ensure that you can rapidly find the most important information:

Information on safety

Procedures to follow

Information/ Suggestions

2.1 Units

Dear Customer, Thank you for purchasing this unit. Our company has always paid a great deal of attention

to environmental problems and therefore uses technologies and materials with a low environmental impact to manufacture its units in conformity with RAEE 2012/19/UE and RoHS 2011/65/UE community standards.

2.2 Disclaimer

The conformity of the content of these user instructions

with hardware and software has been submitted to thorough verification. Regardless of this, it is still possible for some non-compliances to occur; therefore, no liability will be assumed for complete conformity.

In the interest of achieving technical perfection, we

reserve the right to carry out modifications to the equipment construction or to data at any time whatsoever. We therefore do not accept any

liability claims whatsoever attributable to instructions, figures, drawings or descriptions, without prejudice to errors of any kind.

The Supplier shall not be held responsible for damages

attributable to misuse, improper use, or as a consequence of unauthorised repairs or modifications.

WARNING!

The equipment can be used by children aged

8 years or older as well as by people with reduced physical, sensory or mental abilities or by those who lack the necessary experience or knowledge, if they are supervised or after they have received instructions relating to the safe use of the equipment as well as explanations relating to the use of such equipment.

Children must not play with the equipment.

Cleaning and maintenance intended to be carried out by the user must not be performed by unsupervised children.

2.3 Copyright

These user instructions contain information protected

by copyright. It is forbidden to photocopy, duplicate, translate or record these user instructions on memory equipment, either in whole or in part, without prior authorisation of Daikin. Any breaches shall be subject to the payment of compensation for any damage caused. All rights are reserved, including those deriving from the issuing of patents or the registration of utility models.

2.4 Operating principle

The equipment belonging to the 1.9 kW and 2.9 kW

series can produce domestic hot water and does so mainly by using heat pump technology. A heat pump can transfer thermal energy from a low temperature source to one with a higher temperature and vice versa (heat exchangers).

The equipment uses a water circuit consisting of a

compressor, an evaporator, a condenser and a lamination valve; a liquid/gas coolant flows inside this circuit (see paragraph 4.6).

The compressor creates a difference in pressure inside

the circuit, which creates a thermodynamic cycle allowing the coolant fluid to be sucked in through an evaporator, where the fluid itself evaporates at a low pressure by absorbing heat. Next, it is compressed and driven towards the condenser where the fluid condenses at a high pressure releasing the absorbed heat. When the fluids leaves the condenser, it passes through the so-

called “lamination valve”, where it vaporises as it

loses pressure and because of the temperature. It then re-enters the evaporator and the cycle is repeated.

RKHH2E-(P)AAV33 ROTEX Domestic Hot Water Heat Pump

2018.8

Installation manual 11

Fig. 1 – Operating principle

The operating principle of the equipment (Fig. 1): I-II: The coolant fluid sucked in by the compressor flows

inside the evaporator and while it evaporates, it absorbs the “ecological” heat given by the air.

At the same time, the ambient air is sucked into the

equipment by a fan; the air loses its heat by passing over the finned-tube battery of the evaporator;

II-III: The coolant gas passes through the compressor

and it undergoes an increase in pressure that causes the temperature to rise; transforming the gas into superheated steam;

III-IV: Inside the condenser, the coolant gas releases its

heat to the water inside the tank (boiler). This exchange process enables the coolant to transform from superheated steam into a liquid by condensing at a constant pressure and undergoing a lowering in temperature;

IV-I: The liquid coolant passes through the lamination

valve, it undergoes a sudden drop in both pressure and temperature and it partially evaporates bringing pressure and temperature back to its initial conditions. The thermodynamic cycle can begin.

2.5 Available versions and

configurations

The heat pump is available as a 1.9 kW, which can be

set up in different configurations, depending on the possible integrations with other heating sources (e.g. solar thermal, biomass power, etc.).

Version

Configuration description

RKHH2E200AAV33 RKHH2E260AAV33

Air source heat pump for

the production of domestic hot water

RKHH2E260PAAV33

Air source heat pump for

the production of domestic hot water suitable for use with the solar power system.

3 Handling and transport

The equipment is supplied in a cardboard box. It is

fastened to a pallet with three screws.

Use a fork-lift truck or a pallet truck in order to unload

the equipment: it is opportune for these to have a load capacity of at least 250 Kg.

In order to loosen the

fixing screws more easily, you can put the packaged equipment on a horizontal position on its back side.

The unpacking

operations must be carried out carefully to not damage the equipment enclosure, if the unpacking is carried out with knives or cutters to open the cardboard packaging.

After having removed the packaging, check whether the

unit is intact. If in doubt, do not use the equipment and seek help from authorised technical staff.

In conformity with the environmental protection

regulations, you should make sure that all accessories supplied have been removed before discarding the packaging.

WARNING!

Packaging items (staples, cardboard boxed,

etc.) should not be left within reach of children, as this can lead to dangerous situations.

(*) Note: at Daikin’s discretion, the type of packaging

may be subject to change.

It is opportune to protect the equipment from

atmospheric agents as long as it remains idle, waiting to be used.

Ecological heat

Condenser

Air

Evaporator

Compressor

Lamination

valve

Tank

Cold water

Hot water

Electric heat

Installation Manual

RKHH2E-(P)AAV33

ROTEX Domestic Hot Water Heat Pump

2018.8

Positions permitted for transporting and handling:

WARNING!

During the unit handling and installation

stages, it is forbidden to put the upper part of the device under any kind of stress whatsoever due to the fact that it is not of a structural nature.

WARNING!

The equipment can be transported

horizontally only during the last km, following the instructions in the section

“Positions permitted for transporting and handling” above and taking care of

positioning some supports on the lower side of the boiler in order to not lean against the upper part, which is not of a structural nature. When transporting the equipment horizontally, the display must be facing up.

Positions that are not permitted for transporting and

handling purposes:

√

RKHH2E-(P)AAV33 ROTEX Domestic Hot Water Heat Pump

2018.8

Installation manual 13

4 Construction characteristics

Heat pump.

Control panel.

Enclosure in embossed ABS.

Steel tank (boiler) enamelled according to UNI

standards (capacity: 200; 260 litres).

Upper boiler thermistor.

Lower boiler thermistor.

Coolant recharge.

Ambient air recirculation fan.

Lamination valve.

High-efficiency finned evaporator. The quantity

of fluid inside is regulated by an appropriate thermostatic valve.

Air inlet ( 160 mm).

Air outlet ( 160 mm).

Hermetically-sealed rotary compressor.

Replaceable magnesium anode.

(1.5 kW – 230 W) Electric heating element

Condenser pump discharge line.

Condenser return.

Replaceable magnesium anode.

Hot water outlet connection joint (G 1”).

Recirculation fitting (G ¾”).

Inlet, coil fitting for solar thermal power system

(G 1”

1/4

; 1 m2 exchange surface).

Condensate drain (G 1/2”).

Outlet, coil fitting for solar thermal power

system (G 1”

1/4

; 1 m2 surface).

Cold water inlet connection joint (G 1”).

50 mm polyurethane insulation.

Automatic resetting safety pressure switch.

Air inlet filter.

½”G fitting for thermistor immersion sleeve

29 7 13

+ 29 hidden pages