Sime MURELLE HM, Manual

Page: 117 / 120

117
ES
PT
ENG
REGULATION OF THE WATER TEMPERA-
TURE FOR HEATING (fig. 25)
To set the temperature of the water for
heating, press the key
of the controls
(2). The first time the key is pressed, the
SET of heating circuit 1 is selected. The
second time it is pressed, the SET of hea-
ting circuit 2 is selected. The third time it is
pressed, the SET of heating circuit 3 is
selected (Three zones).
The display will be as shown in the figure.
Change the values with the key
and
.
Standard visualisation will return to the
display by pressing the key
again, or
after 10 seconds if no key is pressed.
Regulation of the external sensor (fig.
25/a)
If an external sensor is installed, the value
of the output temperature is automatically
chosen by the system, which quickly adjusts
the environmental temperature on the
basis of the external temperature. If you
wish to change the value of the temperatu-
re, increasing or decreasing that calcula-
ted automatically by the electronic card,
proceed as indicated in the preceding para-
graph. The level of various correction of a
value of temperature proportional calcula-
ted. The display will be as shown in fig.
25/a.
REGULATION OF THE D.H.W. TEMPERA-
TURE (fig. 26)
To set the desired temperature D.H.W.,
press the key
of the controls (pos. 2).
The display will be as shown in the figure.
Change the values with the key
and
. The display will return to the stan-
dard visualisation by pressing the key
again, or after 10 seconds if no key is pres-
sed.
TO SWITCH OFF THE BOILER (fig. 24)
In the case of a short absence, press the
key (
) of the controls (pos. 2). The
display will be as shown in the fig. 24. In this
way, leaving the electricity and the fuel sup-
ply connected, the boiler is protected from
fr os t and fr om t he pump becoming
blocked. If the boiler is not used for a pro-
longed period, it is advisable to disconnect
the electricity supply, by switching off the
main switch of the system, and to close the
gas tap and, if low temperatures are expec-
ted, to completely empty the hydraulic cir-
cuits to avoid pipes being broken by the for-
mation of ice in the pipes.
ANOMALIES AND SOLUTIONS
When there is a functioning anomaly, the
display shows an alarm and the blue lumi-
nous bar becomes red.
Descriptions of the anomalies with the rela-
tive alarms and solutions are given below:
– ALARM 02 (fig. 27/a)
If the water pressure detected is lower
than 0.5 bar, the boiler will stop and the
display will show “ALL 02”.
Bring the pressure back to normal by
means by acting on the loading knob
(whereas, in vers.
25 T - 35 T from
appropriate load connection mounted by
the installer) until the pressure indicated
by the display is between 1 and 1.5 bars.
WHEN FILLING HAS BEEN COMPLETED,
CLOSE THE KNOB BY TURNING IT
CLOCKWISE.
If it is necessary to repeat the system
loading procedure, it is advisable to
2
Circuito
riscaldamento 2
Circuito
riscaldamento 3
(impianto tre
zone)
Fig. 25
Fig. 26
Fig. 25/a
Heating circuit 2
Heating circuit 3
(Three zones)
2