Installation and maintenance instructions
EN
DRAWBACK POSSIBLE CAUSES AND REMEDIES
Insufcient rinsing Prior to checking the rinsing system make sure that the washing
system operates correctly, as a matter of fact an effective
rinsing also depends on a correct washing. Having ascertained
that washing takes place correctly, check that:
A) The dynamic pressure of the feeding water is not less than
2 bar (200 kPa)
B) The jets are not clogged by calcareous residuals.
C) Solenoid valve Y1 Y2 and Y12 operate correctly.
D) The water inlet filter is not clogged.
E) The booster is not scaled to such an extent as to limit the
water flow rate.
Insufcient rinsing
(alarm “H. .1.”)
A) The temperature of the feeding water higher than 55° C.
B) The dynamic pressure of the feeding water does not exceed
2bar (200 kPa).
C) The rinsing jets are not too wide, if otherwise replace them.
If the drawback is not due to any of the causes listed here
above, proceed as follows:
In the case of electrical heating machines
- check that fuses FKE2 are not out of service
- check that the coil of remote switch KE2 (or KE2b) is not
broken
- check all elements of boiler heater E2.
In the case of steam heating machines
- check that the steam inlet gate is open and is present at a
pressure not less than 0.5 bar (50 kPa)
- check that the condensed steam drainage filter is not
clogged
- check that the steam solenoid valve YV10 operates correctly
- check that the inlet steam filter is not clogged to such an
extent as to prevent the normal flow rate
- check that the condensed steam outlet pipe can freely drain
by drop
- check that the pipe coil is not scaled to such an extent as to
limit the heat exchange thereof.
The manufacturer declines any responsibility for any printing errors contained in this booklet. The manufacturer
also reserves the right to make any modications to its products that don’t affect the basic characteristics thereof.
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