Download manual - Systema Polska Sp. z o.o.

Airtight gas convectors
SYSTEMA S.p.A.
3.6 Transformations for various types of gas supplies for pilot
flame-type devices (Mod. K21, K28, K40, K55, K28V, K40V, K55V)
Transformation must be performed only by qualified professionals in complete respect of the
safety regulations in force. The Manufacturer declines all liability for erroneous installation or
the inappropriate or incorrect transformation or use of the device.
Transformation from Methane gas to LPG. gas
1) Close the gas supply line and disconnect the electrical power supply.
2) Remove the cast-iron front panel by unscrewing the four M8 screws at the corners.
3) Remove the gas supply line pipe from the main burner (11) using the sealing connector
(13) (See Draw ).
4) Remove the nozzle-holder (14) and the nozzle (15), and replace the nozzle with the one
contained in the transformation kit after first checking to make sure that the diameter
corresponds to the diameter listed on the rating plate.
5) Disable the valve's pressure regulator by screwing the screw (9) clockwise (+) all the way
down.
6) Remove the gas pipe (6) from the pilot, remove the pilot nozzle and replace it with the one
contained in the transformation kit.
7) Re-close the cast-iron front panel, making sure that the fiberglass sealing liner remains in
place.
8) Check for leakage of gas along the threaded joints.
9) Start the device, and make sure that the supply pressure to the burner is 29 mbar (*) using
the pressure tap (5).
10) Indicate on the rating plate the type of gas transformation performed on the device.
(*) For LPG gas (Butane-Propane), a “I” stage pressure reducer must be installed near the
tank in order to reduce the pressure to 1.5 bar; a “II” stage pressure reducer must be
installed on the main external supply line in order to reduce the pressure to 29mbar (0.029
bar).
Transformation from LPG gas to Methane gas
1) Close the gas supply line and disconnect the electrical power supply.
2) Remove the cast-iron front panel by unscrewing the four M8 screws at the corners.
3) Remove the gas supply line pipe from the main burner (11) using the sealing connector
(13) (See Draw ).
4) Remove the nozzle-holder (14) and the nozzle (15), and replace the nozzle with the one
contained in the transformation kit after first checking to make sure that the diameter
corresponds to the diameter listed on the rating plate.
5) Remove the gas pipe (6) from the pilot, remove the pilot nozzle and replace it with the one
contained in the transformation kit.
6) Re-close the cast-iron front panel, making sure that the fiberglass sealing liner remains in
place.
7) Check for leakage of gas along the threaded joints.
8) With a 20 mbar supply pressure, use the adjustment screw (9) to bring burner pressure
(4) to its nominal rating plate value. Screwing in the clockwise direction increases the
pressure, while unscrewing counter-clockwise decreases the pressure.
9) Indicate on the rating plate the type of gas transformation performed on the device.
29
Rev. 05IT0112-1