PENSOTTI PNCC-32N, Instruction Manual

Page: 53 / 81

INSTALLATION INSTRUCTIONS
50
4.4 Starting up the boiler
– Requires a Gas Manometer & Electronic Combustion
Analyzer
Once the system has been filled, purged of air, the gas line
checked for leaks and venting system inspected proceed as
follows:

Check that the exhaust duct is free from obstructions
and correctly connected to the flue exhaust system.

R
emove the front panel (see 6.3 ‘Accessing the
boiler’);

Loosen the screw of the gas pressure point no. 3 (fig.
1), and insert a Gas Manometer

Switch on the power supply to the boiler;

Open the gas feed valve;

Use button to select the HEATING ONLY
mode. The symbol will light up (solid light) to
indicate the selected operation mode;

Turn on all available heating zones. The closure of the
room thermostat(s) contact will then light the burner.
symbol will begin to blink.

In case of flame failure, the ignition system repeats
the ignition procedure after the fan-overrun cycle (20
sec). It may be necessary to repeat the operation in
order to remove all the air from the pipes. To repeat
the operation, wait approximately 15 seconds from
the last ignition attempt before resetting the error
code E01 (by pressing the reset button
‘
’);

To check the inlet gas pressure value allow the boiler to
fire;

Press and hold the (reset button)
for several seconds until “F07” appears on the screen (indicating high fire mode);

Observe inlet gas pressure on the manometer. Adjust inlet pressure (6-
7” wc Natural Gas or 11” wc LPG) if necessary
at the gas supply service regulator;

Turn boiler off using the button so that only the symbol is displayed.

Close the gas feed valve and remove the gas manometer. Tighten the screw of the pressure port no. 3.
Checking Maximum and Minimum fire gas pressure values.
Check Maximum and Minimum gas pressure setting values. Make sure they comply with those stated on the Gas Data
Table below;
Gas Data Table
NATURAL GAS LIQUID PROPANE GAS
Boiler Fan Speed min max min max
Gas Pressure Inches WC 1.74 4 4.04 10.2
Fig. 1
KEY:
1.
MODULATOR
2.
GAS PRESSURE POINT - OUTLET
3.
GAS PRESSURE POINT
– INLET