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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 5 (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.
