Radiant RSA 24 /8 User Manual

MAINTENANCE INSTRUCTIONS
36
5.4 Gas valve adjustment
P ARAMETER P08 - M AXIMUM DOMESTIC HOT WATER OUTPUT
Before switching on the boiler to adjust the setting, insert a
pressure gauge in the pressure take-off point B on the gas
valve (fig. 1);
To enter the parameters menu, follow the previously
described procedure (see paragraph 5.2 ‘Accessing the
parameters menu’ - steps 1-5). Select parameter P08.
6. Use ‘ ’ and ‘ ’ buttons (D.H.W temperature setting)
and adjust the value of the parameter from ‘99’
(maximum value of default) to the required value according to
pressure-power correlation diagrams (see paragraph 5.4
‘Gas Data, Heating output maximum pressure diagram’).
7.
Press mode selection button ‘ ’ to confirm and to
render the new adjustment operative. The parameter
number (P08) will appear on the display
.
8.
To exit from the parameters menu, press
simultaneously ‘ ’ and ‘ ’ buttons
.
9 . Press mode selection button ‘ ’ to select
WINTER mode;
10.
Press reset button ‘ ’ for 7 seconds until the number 07
flashes on the display (chimney sweeper function). In this
way, the boiler will run at maximum heating power for 15
minutes; The pressure gauge will indicate the gas
pressure. If this pressure value is different to that on the
rating plate of the boiler (see paragraph
5.4 ‘Gas Data
’)
remove the modulator plastic cap
A
(fig. 1) and screw in
the nut
C
to adjust the maximum gas pressure. Use a
10mm. spanner.
11. Now proceed with the minimum mechanical gas
pressure adjustment as follows:
- Disconnect one of the two modulator power supply cables
from the modulator E (fig.1 );
- The pressure gauge will indicate the minimum mechanical
gas pressure;
- If this pressure value is different from value 1,5 mbar (G20)
/ 4,5 - 6,1 mbar (G30-G31), rotate screw D (fig.1 ) until the
pressure gauge indicates the correct value.;
- Connect the modulator power supply cable back to its
original position on the modulator E (fig.1 );
- Put back the modulator plastic cap A (fig.1 ) on the original
position to ensure the correct operation of the modulator.
- Press mode selection button ‘ ’ to deactivate the
chimney sweeper function.
66
P08

Radiant RSA 24 /8 Specifications

General

Brand	Radiant
Model	RSA 24 /8
Category	Boiler
Language	English