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EN
DOMESTIC HOT WATER HEAT PUMP
Instruction for installation and maintenance
1. INTRODUCTION
This installation and maintenance manual are to be considered an integral part of the heat pump water heater, here after
referred to as an equipment.
The manual must be kept for future reference until the heat pump itself has been dismantled. This manual is intended for
both the specialized installer (installers – maintenance technicians) as well as the end user. 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 are described in
this manual.
In case of the sale of the equipment or the change of owner, the manual must accompany the equipment to its new destina-
tion.
Before installing and/or using the equipment, read this instruction manual carefully and, in particular, chapter 4 related to safety.
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 inside the manual in order to quickly find the most important information:
Information on safety
Procedures to follow
Information / Suggestions
1.1.
Introduction
Dear Customer,
Thank you for having purchasing this product.
We have always paid a great deal of attention to environmental problems, therefore, it has used technologies and materials with a
low environmental impact to manufacture our products in conformity with WEEE – RоHS (2011/65/ЕU and 2012/19/EU community
standards.
1.2.
Disclaimer
The conformity of the content of these user instructions with hardware and software has been submitted for thorough verifica-
tion. Regardless, it is still possible for some non-compliance to occur; therefore, no liability will be assumed for complete conformity.
In the interest of achieving technical perfection, we reserve the right to modify the equipment construction or to data at any time what-
soever. Therefore, we do not accept any liability claims attributable to instructions, figures, drawings or descriptions, without prejudice to
errors of any kind.
TESY shall not be held responsible for damages attributable to misuse, improper use, or as a consequence of unauthorized repairs or
modifications.
1.3.
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 authorization of the producer. 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.
1.4.
Operating principle
The equipment is capable of producing domestic hot water mainly by using heat pump technology. A heat pump is capable
of transferring thermal energy from a low temperature source to another with a higher temperature and vice versa.
The equipment uses circuit consisting of a compressor, an evaporator, a condenser and a throttle valve; a liquid/gas coolant flows
inside this circuit.
The compressor creates a difference in pressure inside the circuit that allows a thermodynamic cycle to be obtained: this sucks
the coolant fluid in through an evaporator, where the fluid itself evaporates at a low pressure by absorbing heat; it is com-
pressed and driven towards the condenser where the fluid condenses at a high pressure releasing the absorbed heat. After
the condenser, the fluid passes through the so-called "throttle valve" and by losing pressure and the temperature starts to vaporize,
it re-enters the evaporator and the cycle starts all over again.
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