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1.1 General information
No part of this publication may be reproduced, copied, filed or transmitted in any shape or form
without the permission of Johnson Controls-Hitachi Air Conditioning Spain, S.A.U.
Within the policy of continuous improvement of its products, Johnson Controls-Hitachi Air
Conditioning Spain, S.A.U. reserves the right to make changes at any time without prior notification
and without being compelled to introducing them into products previously sold. This document
may therefore have been subject to amendments during the life of the product.
Hitachi makes every effort to offer correct, up-to-date documentation. Despite this, printing errors
cannot be controlled by Hitachi and are not its responsibility.
As a result, some of the images or data used to illustrate this document may not refer to specific
models. No claims will be accepted based on the data, illustrations and descriptions included in
this manual.
Personal for maintenance, service, and repair operation shall have the required qualification by
local and national regulations.
1.2 Applied Symbols
During normal heat pump system design work or unit installation, greater attention must be paid in
certain situations requiring particular care in order to avoid damage to the unit, the installation or
the building or property.
Situations that pose a risk to the safety of those in the surrounding area or to the unit itself are
clearly indicated in this manual.
A series of special symbols are used to clearly identify these situations.
Pay close attention to these symbols and to the messages following them, as your safety and that
of others depends on it.
RISK OF EXPLOSION: This symbol shows that this equipment uses an odourless low
burning velocity refrigerant. This appliance is filled with R32. If the refrigerant is
leaked, there is a possibility of ignition if it enters in contact with an external ignition
Refrigerant
Safety Group
source.
A2L
!
DANGER
• The text following this symbol contains information and instructions relating directly to your
safety, in addition to hazards or unsafe practices which could result in severe personal injuries
or death.
• Not taking these instructions into account could lead to serious, very serious or even fatal
injuries to you and others.
PMEN0657 rev.0 - 02/2024
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