Technical information

30
3.2 IN
ITIAL
ST
ART
-U
P
TH
E CHECKS TO BE RUN BEFORE INITIAL START
-U
P ARE AS FOLLOWS
:
1. Make sure that:
- the screw on the automatic air valve has been loosened when
the system is full;
- If the water pressure in the system is below 1.5 bar, bring it up
to the appropriate level;
-
Ensure that the gas cock is closed
(
F
IG.
3
.1)
;
-
Make sure that the electrical connection
has been made properly and that the
earth wire is connected to an efficient
earthing system;
- Supply power to the boiler by turning the On/Off knob
“A” (see
FI
G
. 3.2) - on the display will appear “on”. Turn the knob “C” to
maximum and switch the time clock to constant.
After 7 seconds, the boiler will signal a shutdown due to ignition
failure. Leave the boiler as it is until all of the air has been bled
from the system.
- Loosen the cap on the head of the pump to eliminate any air
pockets;
- Repeat the procedure for bleeding the radiators of air;
- Open the hot water taps for a brief period;
- Check the system pressure and, if it has dropped, open the
filling loop again to bring the pressure back up to 1.5 bar.
2. Make sure that all radiator valves are open;
3. Check the flue system for products of combustion.
4.
Fill the boiler condensate trap with water.
N.B. In the event of a prolonged period of system
shutdown, the condensate trap should be filled before any
renewed use. A shortage of water in the trap could
possibly lead to fumes leaking into the air
.
3. Turn on the gas cock (FIG. 3.3) and check
the seals on the connections with an
approved soap solution and eliminate
any leaks.
4. Press the reset button
“D” (see FIG. 3.4)
the boiler will re-attempt ignition. If the
burner does not light the first time, wait 1
minute, purge the gas and repeat the procedure.
5. Run the boiler in Hot Water mode and bleed air from the system
6. Check the minimum and maximum burner pressure values;
adjust if necessar
y using the v
alues indicated in the tab
le in
SECTION 4 (Page 31).
1
2
3
4
5
6
1
2
3
4
5
6
EC
II
D
1
2
3
4
5
6
1
2
3
4
5
6
E
C
I
I
A
C
FIG. 3.1
Fig. 3.3
FIG. 3.2
FIG. 3.4