Riello 20120391, Инструкции для установщика и технической поддержки

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INSTALLATION
INSTALLATION
2.6 Positioning
R
NXC-NXH devices must:
− be positioned on a level surface that is capable of sup-
porting their weight
− be positioned on a sufficiently rigid surface that will not
transmit any vibrations to the underlying or adjacent
rooms
− be installed in a place that is not accessible and/or re-
stricted to non-authorised people
− allow easy access for maintenance operations.
It is recommended to place a rubber slab (hardness 60 shore,
thickness 10 mm) or properly sized anti-vibration supports be-
tween the device and its support surface.
The unit should be raised off the ground, as follows:
− 100 mm for installations in ordinary zones
− 300 mm for installations in zones that are extremely
cold or subject to heavy snowfall.
300
100
A
1
B
A Positioning in ordinary areas
B Positioning in very cold areas or with heavy snow-
falls
1 Rubber slab
9
Adequate anti-freeze systems should be used for installa-
tions in zones that are extremely cold or subject to heavy
snowfall, where the possibility of freezing is present.
9
While operating in heating mode, the unit generates con-
densation, which will be deposited on the support surface.
This could freeze if the outdoor temperatures are below
zero, thus creating a hazard. In this case, appropriate bar-
riers should be installed in order to prevent people from
approaching the unit.
9
Before lifting the unit check that all panels and grilles are
fixed. Lift and place the unit with utmost care: tilting and
shaking can damage the unit.
9
Do not press on and do not act on the panels fitted on the
unit; only the unit frame base is designed to withstand
these kinds of stresses.
2.7 Installation on old systems or systems in
need of upgrading
When
R
NXC NXH devices are installed on old systems or sys-
tems in need of upgrading, it is recommended to ensure that:
− the electrical system is compliant with the applicable
regulations and has been installed by qualified profes-
sionals
− the expansion tank ensures the complete absorption of
the fluid expansion contained within the system
− the system has been washed, cleaned of any sludge or
limescale deposits, and deaerated, and that all the seals
have been checked
− an adequate treatment system has been installed if the
supply/reintegration water has particular characteristics
(see chapter "Water quality requirements").
9
In the event of a replacement, the system must be inspect-
ed by the designer or by another competent person, and
must be compliant with the technical requirements, as
well as the current legislations and regulations.
9
The manufacturer shall bear no responsibility for any dam-
ages caused by incorrect system installation and/or the
failure to properly clean the water system.
2.8 Source water systems
The
R
NXC-NXH devices require systems that guarantee a
constant flow of fluid to the device, within the minimum and
maximum values, and with volumes that are sufficient for pre-
venting any imbalances in the cooling circuits and are capable
of ensuring the necessary comfort levels. The control panel has
an anticipation logic for more flexible adjustments in particu-
lar on hydronic systems with low water volumes. By adjusting
compressor runtime it prevents the start of short cycle protec-
tion cycles removing in most cases the need of a backup tank.
9
The backup tank is mandatory for systems operating with
low water volumes or for industrial processes.
0
The device MAY NOT be installed on open tank systems.