Converting The Boiler To A Different Gas Type - PENSOTTI PCI 34 Instruction Manual

5.4 Converting the boiler to a different gas type

The conversion of this boiler from burning natural gas to LPG, or vice versa, must be carried out
exclusively by professionally qualified personnel, registered in accordance with current legislation
and authorized by Pensotti LLC. It is necessary to use a properly calibrated, electronic combustion
analyzer.
Check that the gas supply pipe is suitable for the new fuel type.
*When Converting model numbers PCC 34-H, PCH 34B-H, PCI 34/20-H and PCH 50B-H it is only
necessary to change Parameter "P02". If converting models numbers PCH 18B-H or PCI 18/8-H it is
necessary to change Perimeters 2, 17, 18, 19, 20 and 21 to the values fund in the corresponding installation
manuals.
9. Turn the appliance off using the power button.
10. As a preliminary adjustment, using a 4mm allen wrench or properly sized slotted screwdriver, turn the V screw clockwise 4 turns
( PCH 18B-H & PCI 18/8-H – 2 ½ to 3 turns). Leave the wrench or screwdriver in the V screw to make the final adjustment.
11. Turn on all available HEAT zones. Turn the appliance back on and set the mode selection to HEAT ONLY position by pressing
the '+' button.
12. After the boiler fires, press and hold the center button. 'S' for a few seconds until you see '07' appear on the screen/ This will
hold the boiler in high fire for 15 minutes.
13. Unscrew the white test plug and insert an analyzer in the exhaust sampling point 'PF' to check the CO2 value. Make sure the
value complies with the boiler installed.
14. If the CO2 value does not correspond to the specified value, adjust the V screw on the ventrui clockwise to reduce the CO2
value or counter-clockwise to increase it. Be careful not to block the boiler air/fuel venture with your hand as you adjust the V screw.
15. Once the V screw adjustment is complete, remove the allen wrench or screwdriver. Turn the power button off and then back on.
The boiler control is now back in normal operation mode. (If this step is ignored the control will revert back to normal operation after
the 15 minute period expires).
16. Select the proper operation mode and temperatures as required.
MAINTENANCE INSTRUCTIONS
1. Place the On/Off switch in the off
position.
2. Activate the On/Off switch while
keeping buttons '+' and '-' pressed. Wait
for "P 00" to appear on the display.
3. Release buttons '+' and '-'.
4. Keep buttons 'S' pressed and use
button '+' or '-' to select a parameter to
modify.
5. Release button 'S', then re-press and
release it. The display will indicate the
value of the parameter to modify.
PARAMETER 2 – GAS SUPPLY
6. Use buttons '+' or '-' to modify the value of the
parameter:
"00" = natural gas
"01" = lp gas
7. Press and release button 'S' to confirm. The
parameter "P02" will appear on the display.
8. Switch off the appliance and switch it back on
again to render the new parameter operative.
.
PF Sampling
V Screw
50