Rotex RKHH2E200AAV33 User manual

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
4
RKHH2E-(P)AAV33
ROTEX Domestic Hot Water Heat Pump
2018.8
Table of contents
1Generalsafetyprecautions ..........5
1.1 About the documentation .........................5
1.1.1 Meaning of warnings and symbols5
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 Handlingandtransport...............11
4 Constructioncharacteristics.......13
4.1 Technical characteristics........................14
5 Importantinformation.................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 Installationand 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
6.4Water 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
6.7Wiring diagram......................................23
7 Commissioning.......................23
8 Operationanduse......................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 Maintenanceandcleaning.......... 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
yourinstaller.
•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.

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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 intheDaikin
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
protectivegloves.
•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:
If
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.

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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
10
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.