USER INSTRUCTIONS
4
M
RS
R
■
D.H.W temperature control
The domestic hot water temperature is regulated by
knob
3
(see “Control panel”).
Rotating the knob anticlockwise reduces the
temperature.
Rotating the knob clockwise increases the
temperature.
The range of temperature settings for the
domestic hot water runs from a minimum of 35°C
to a maximum of 60°C.
■
Topping-up the system with water
The water pressure in the central heating circuit
must be checked during the entire period of
operation of the boiler. In this respect, the reading on
the pressure gauge
M
(fig. 1), located on the lower
part of the boiler, must not be less than 1 bar.
If there is insufficient water in the boiler, the code
H2O
will flash on the display (see fig 1).
To bring the system back up to pressure, open the external filling tap
R
(fig. 1) and use the pressure gauge
M
(fig.
1) to check that the system pressure reaches 1 bar and that the code H2O lights up.
When the operation is complete, close the fill tap.
■
Topping-up the system with water
The water pressure in the central heating circuit must be checked during the entire period of operation of the boiler.
In this respect, the reading on the pressure gauge
M
(fig. 1), located on the lower part of the boiler, must not be
less than 1 bar.
If there is insufficient water in the boiler, the code
H2O
will flash on the display (see fig 1).
To bring the system back up to pressure, open the external filling tap
R
(fig. 1) and use the pressure gauge
M
(fig.
1) to check that the system pressure reaches 1 bar and that the code H2O lights up.
When the operation is complete, close the fill tap.
Diagnostics – Error codes:
This paragraph contains a list of error codes that the boiler may generate on the display
8
(see “Control panel”)
together with the relative indications and the operations that the user can carry out to reset the boiler.
If the problem re-occurs after the following actions have been taken, call an authorised Service
Centre.
E01
Ionisation block
Code
E01
lit continuously on the display.
Check that the gas valve on the boiler and gas meter are open and that there is gas in the mains supply (or in
the tank).
Switch off then switch on the appliance using switch
1
(see “Control panel”) on the control panel.
When the error code on the display disappears, the boiler will restart.
If the problem persists,
Call the Service Centre.
E02
Safety Thermostat tripped
Code
E02
lit continuously on the display.
Call the Service Centre.
Fig. 1
Summary of Contents for RK 25/B
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