Top View; Water Connections; Connection To The System - Hitecsa 117 Manual De Instalación, Uso Y Mantenimiento

EQUI PF-EQUHI PF 117÷128 P0lPI0lP1
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Model
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TOP VIEW

800
IMPORTANT!
Incorrect positioning or installation of the unit may
amplify noise levels and vibrations generated
during operation.
The following accessories are available to reduce noise and vibration:
KSA - Anti-vibration mountings.
IOM_EQUI PF-EQUHI PF_117a128_207983_200101_ES-EN-FR-DE-IT
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When installing the unit, bear the following in mind:
 non-soundproofed reflecting walls near the unit may increase the
total sound pressure level reading near the appliance by as much as 3
dB(A) for every surface;
 install suitable anti-vibration mountings under the unit to avoid
transmitting vibrations to the building structure;
 make all water connections using elastic joints; pipes must be firmly
supported by solid structures.
If the pipes are routed through walls or panels, insulate with elastic
sleeves. If, after installation and start-up of the unit, structural vibrations
are observed in the building which provoke such strong resonance that
noise is generated in other parts of the building, refer to a qualified
acoustic technician for a complete analysis of the problem.
II.6

WATER CONNECTIONS

II.6.1

CONNECTION TO THE SYSTEM

IMPORTANT!
The layout of the water system and connection of
the system to the unit must be carried out in
conformity with local and national rules in force.
IMPORTANT!
It is advisable to install shut-off valves that isolate
the unit from the rest of the system. Mesh filters
with a square section (longest side = 0,8 mm), of a
suitable size and pressure drop for the system,
must be installed. Clean the filter from time to time.
IMPORTANT!
The expansion tank on the machine is sufficient to
protect the unit. The installer is in charge of sizing
and installing the system's expansion tank.
○ The unit is equipped with male threaded hydraulic connections and
manual air vent valve placed inside the cabinet.
○ It is advisable to install cut-off valves that isolate the unit from the
rest of the system and elastic connection joints.
○ It is mandatory to install a square metal mesh filter (longest side =
0.8 mm) of adequate size and pressure drops for the system on the unit
return pipes.
○ The expansion tank on the machine has limited capacity to protect
the hydraulic circuit inside the machine.
○ The rate of the water that flows through the heat exchanger must not
drop below the value corresponding to a temperature differential of 8°C.
○ During long periods of inactivity, it is advisable to drain the water
from the system.
○ It is possible to avoid draining the water by adding ethylene glycol to
the water circuit (see Protecting the unit from frost).
Pump P0lASP0 installation
o The units are equipped with a 3-speed electronic circulator, which
can be selected from the selectors on board. The maximum speed it set
by default. The unit's hydraulic circuit is complete with an expansion
tank and safety valve, air bleed and drain valves.
Pump PI0lASPI0 installation
○ The units are equipped with an electronic circulator with continuous
speed regulation for variable flow rate systems. The units is complete
with a sensor to measure the pressure difference between the system's
flow and return pressure. During the installation phase, the unit must be
set by following the simple procedure. With the system completely open
(all terminals open) so that the water flow rate reaches each area, the
automatic machine calibration process must be started from the
relevant screen on the control panel. The self-calibration procedure
allows the machine to automatically set the differential pressure value
that must be maintained.
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