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コントロールユニット CALEFFI SATK40 SeriesのPDF 設置、試運転、およびメンテナンスに関する説明書をオンラインで閲覧またはダウンロードできます。CALEFFI SATK40 Series 12 ページ。 Wall-mounted compact indirect hiu - dhw production in storage cylinder
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Hydraulic connections
Hydraulic connections to the centralised line must be implemented
using the manual shut-off valves supplied with the HIU, which allow
any necessary maintenance work to take place without having to
empty the centralised system.
It is advisable to install manual shut-off valves (not supplied) also
on the bottom terminals connecting to the dwelling.
Before installation, it is recommended to carry out accurate flushing
of all the pipes of the system in order to remove any residue or
impurities that could endanger correct operation of the HIU.
In order to facilitate these operations a manual bypass flushing
valve is available (code 789100).
N.B. Install the valves as shown in the figure
N.B.:
1 Install water hammer arresters to compensate for any overpressure in the domestic water circuit;
2 In the presence of hot water recirculation or if a non-return valve is fitted into the domestic cold water inlet, provision must be made to accommodate the expansion
of the water contained within the system and the heat interface unit;
3 All hydraulic connections must be checked before pressurising the system. Vibration during transport may cause the connections to become loose. DO NOT APPLY
EXCESSIVE TIGHTENING TORQUE otherwise the components may be damaged.
Commissioning
Filling the central heating system
Open the shut-off valves on the connections to the centralised line
and, in the central heating system, proceed with charging the
system to the design pressure.
Once these procedures are complete, vent the system and check
its pressure again (repeat the filling process if necessary).
Filling the user system
SATK40 series HIUs are fitted with a filling unit equipped with a
backflow preventer (A), check valve (B) and cock (C)
When filling the system for the first time or for subsequent top-up
procedures following a heating circuit pressure switch fault, restore
the system pressure (0,12–0,2 MPa - 1,2–2 bar) by opening cock
(C) and checking the value by means of the pressure gauge (D).
Once the correct pressure has been reached, close the cock (C),
vent the system and re-check the pressure (repeat the filling
process if necessary).
B
D
.
A
C
N.B. DHW storage not supplied
System start-up
Before starting the HIU, visually check the hydraulic connection
watertightness and the electric wiring. After finishing the check,
activate the electric supply to the HIU and check for the presence
of any error signals.
If there are any, eliminate the fault indicated and proceed as
described below, setting the set point of the domestic water and
heating cycles, programming the thermostat/chrono-thermostat
according to the desired temperatures and times, and checking
the operating cycles.
Fitting the cover
Place the casing over the frame, inserting the upper tabs (1) into
the corresponding slots (2).
Place the lower part of the casing over the frame.
Tighten the screws (3).
3
4
2
1