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2-2
INS
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MAINTEN
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2.5 INFORMATION MENU.
Pressing the buttons (3) and (4) simultaneously
for 5 seconds, the “Information menu” is acti-
vated, which displays some boiler functioning
parameters.
Press buttons (3) and (4) to scroll through the
various parameters. To exit the menu, press
buttons (3) and (4) simultaneously again for 5
seconds or wait for 5 minutes.
List of parameters
Id
Parameter
Description
d1
Displays the flame signal
d2
Displays the primary exchanger
output instant heating flow
temperature (flow probe)
d3
Displays the instant output
temperature from the DHW
exchanger
d4
Not used
d5
View the operating instantane-
ous power (value in %).
d6
Displays the temperature set for
the central heating set (if remote
control is present)
d7
Displays the temperature set for
the DHW set (if remote control
is present)
E1 - E8
Display the anomaly history, of
which E1 is the most recent
2.6 RESETTING THE ANOMALY
HISTORY.
Press the Reset button on the information menu
for > 2 seconds and < 4.5 seconds. "E-" will appear
on the display.
Only during this time, if you release the button,
it resets the anomaly history.
2.7 BOILER SHUTDOWN
Press the button (2 Fig. 2-1) (
) until the
symbol ( ) appears on the display.
N.B.:
in these conditions the boiler is still
powered.
Key:
1 - Filling valve
2 - Draining valve
Disconnect the omnipolar switch outside the
boiler and close the gas cock upstream of the
appliance. Never leave the boiler switched on if
left unused for prolonged periods.
2.8 RESTORING CENTRAL HEATING
SYSTEM PRESSURE.
Periodically check the system water pressure.
The boiler pressure gauge should read a pressure
between 1 and 1.2 bar.
If the pressure is below 1 bar (with the circuit cool)
restore normal pressure via the filling cock located
in the lower part of the boiler (Fig. 2-2).
N.B.:
close the filling cock after the operation.
If pressure values reach around 3 bar the safety
valve may be activated.
In this case, remove water from an air vent valve
of a radiator until reaching pressure of 1 bar, or
ask for assistance from professionally qualified
personnel.
In the event of frequent pressure drops, contact
qualified staff for assistance to eliminate the pos-
sible system leakage.
2.9 SYSTEM DRAINING.
To drain the boiler, use the special draining
valve (Fig. 2-2).
Before draining, ensure that the filling cock is
closed.
2.10 ANTI-FREEZE PROTECTION.
The boiler is supplied with an antifreeze function
as per standard that activates the function of the
pump and the burner when the internal system
water temperature in the boiler falls below 4 °C
(protection range to a minimum temperature
of -5°C) and stops when it exceeds 42°C. The
antifreeze function is guaranteed if the boiler
is fully operative, is not in "block" status and is
electrically powered. To avoid keeping the system
switched on in case of a prolonged absence, the
system must be drained completely or antifreeze
substances must be added to the heating system
water. In both cases the boiler domestic hot wa-
ter circuit must be drained. In systems that are
drained frequently, filling must be carried out
with suitably treated water to eliminate hardness
that can cause lime-scale.
All information relative to the antifreeze protec-
tion is stated in par. 1.3. In order to guarantee the
integrity of the appliance and the domestic hot
water heating system in areas where the tempera-
ture falls below zero, we recommend the central
heating system is protected using anti-freeze
liquid and installation of the
Immergas Anti-
freeze Kit
in the boiler. In the case of prolonged
inactivity (second case), we also recommend that:
- disconnect the electric power supply;
- empty the boiler domestic hot water circuit via
the drain valves (Fig. 1-27) and the internal
domestic hot water distribution network.
2.11 CASE CLEANING.
Use damp cloths and neutral detergent to clean
the boiler casing. Never use abrasive or powder
detergents.
2.12 DECOMMISSIONING.
In the event of permanent shutdown of the boiler,
contact professional staff for the procedures and
ensure that the electrical, water and gas supply
lines are shut off and disconnected.
Bottom view.
Summary of Contents for NIKE MYTHOS 24 2E Series
Page 1: ...EOLO MYTHOS 24 2E IE Instruction and warning book 1 038791ENG ...
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