Use And Maintenance; Preliminary Ignition Checks; Cleaning; Maintenance - Sime SOLIDA 3 Manual De Instrucciones

2.8.2 Closed expansion tank system with heat exchanger and optional thermostat valve

3 USE AND MAINTENANCE

3.1 PRELIMINARY
IGNITION CHECKS
Before the use of the boiler, it is necessary
to follow the following instructions:
– The installation where the boiler is con-
nected to, should be preferably with an
open expansion tank (fig. 10).
– The tube, which connects the boiler to
the expansion tank, should have an ade-
quate diameter according to the norms
in force.
– The heating pump should always be run-
ning during the operation of the boiler.
– A possible ambient thermostat should
never interrupt the pump operation.
– If the installation is equipped with a 3 or
4 ways mixing valve, it should always be
placed in the opening position toward the
installation.
– Be assure that the draught regulator
works regularly and that there aren't
impediments, which block the automatic
operation of the air gate damper.
3.2

CLEANING

The cleaning should be carried out with
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a certain frequency providing besides the
cleaning of the smoke passages, also the
cleaning of the ash box, removing the
ashes, which are contained in the collec-
tion basin. Use a proper pull-through for
the cleaning of the smoke passages (fig.
11).
3.3

MAINTENANCE

Do not perform any maintenance work, di-
smantling or removal of parts without pro-
perly emptying the boiler first.
The boiler must not be emptied when the
water is hot.
CAUTION: The safety valve on the system
must be inspected by technically qualified
personnel in accordance with the laws of
the country of distribution and instruc-
tions for use of the safety valve.
If the system is completely emptied and
remains unused for some time, the safety
valve must be inspected before it is used
again. If the safety valve should malfun-
ction and cannot be re-calibrated, repla-
ce it with a new 1/2" valve calibrated to 3
BAR and conforming with Directive PED
2014/68/UE.
LE G EN D
VE Expansion tank
VS System safety valve 3 BAR - 1/2"
V M Mixing valve
VR Check valve
PI System pump
IR Heating system
VT Thermostat valve (97°C opening)
S C Safety exchanger
F Filter
CAUTION: The safety exchanger is sup-
8105200
plied in an optional kit code
Temperature of the water supplied to the
safety heat exchanger: 10°C.
Pressure of the water supplied to the
safety heat exchanger: 2 bar.
Assembly of the safety heat exchanger
(SC) is mandatory.
.
Fig. 10/a
Fig. 11