Systema K21 - Gas Supply Transformations for Pilot Flame Devices

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Rev. 12GB0712

SYSTEMA S.p.A.

AIRTIGHT GAS CONVECTORS

SOLENOID VALVE FOR ELECTRONIC DEVICES

(K21E, K28E, K40E, K55E, K28VE, K40VE, K55VE,

K21FE, K28FE, K40FE, K55FE)

LEGEND

1) Outlet pressure tap (at nozzle)

2) Inlet pressure tap (from mains)

3) Pressure regulator - stabilizer

4) Main burner supply line pipe

5) Sealing connector

6) Nozzle-holder sleeve

7) Nozzle

8) Brass closing plug

“WHITE ROGER” TYPE

“SIT 850 MICRO” TYPE

3.4 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 pro-

fessionals in complete respect of the safety regulations

in force. The Manufacturer declines all liability for erro-

neous installation or the inappropriate or incorrect trans-

formation or use of the device.

Transformation from Methane gas to LPG. gas

1) Close the gas supply line and disconnect the elec-

trical 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 bur-

ner (11) using the sealing connector (13) (See Draw

30).

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 like indicated in the tables

to the page 8, 9 (*) using the pressure tap (5).

10) Indicate on the rating plate the type of gas transfor-

mation performed on the device.

(*) For LPG gas (Butane-Propane), a “I” stage pressu-

re 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 like indi-

cated in the tables to the page 8, 9.

Transformation from LPG gas to Methane gas