SSB 6720866940 (2017/11) US
Commisioning | 21
7 Commisioning
7.1 First operation
Before commissioning the boiler the following steps must be veried:
[1] Verify the gas type and pressure match the boiler name plate rating.
When converting the boiler to operate on LP, the LP conversion
sticker or decal must be applied. When operating with NG the
min. gas pressure should be 3.5” w.c. (8,72 mbar), while max. gas
pressure 10,5” w.c. (26.15 mbar). For LP the min. and max. gas
pressures are 8” w.c. (19.9 mbar) and 13” w.c. (32,3 mbar);
[2] Open the manual gas valve
[3] Check water circuit is clean and a water lter on return line;
[4] Verify all shut-off valves are open;
[5] Verify the water ll pressure is correct,
[6] Verify that the intake and exhaust pipes are free from obstruction;
[7] If necessary bleed the gas supply line of air by using the supply
pressure port (“P IN”) see Fig. 46 - Fig. 47;
P_INP_OUT B A
Fig. 46 Gas supply line SSB85 - SSB120
P_INP_OUT B A
Fig. 47 Gas supply line SSB160
[8] Verify all electrical connections are correct;
[9] Verify no electrical components were removed or tampered with;
[10] Fill the condensate trap with water and ensure a continuous
downward slope exists in the outlet tube.
Only after verifying steps 1 to 10 should commissioning of the boiler be
performed.
7.2 Inlet Gas Pressure
It is necessary to check the gas pressure at the inlet of the gas valve
remains steady. With the burner operating the inlet gas pressure should
not decrease more that 2” W.C., if a large uctuation is detected a
regulator must be used to stabilize the supply pressure.
7.3 Switching from NG to LPG
The unit comes from factory set for Natural Gas. The unit can be
converted to LPG using the conversion kit supplied by the factory.
WARNING: Conversion of the unit must be performed by a
authorized service technician.
Preliminary Operation
The electrical supply to the boiler must be turned off and the gas supply
must be disconnected from the boiler.
Boiler Model SSB85 - SSB120
The picture below shows the fasteners to access the installation location
for the LPG orice.
Disconnect the union tting and insert the LPG orice and gaskets.
Fig. 48 Gas tting - model SSB85 - SSB120
Fig. 49 Installation location for the LPG orice - model SSB85 - SSB120
To Next Page
Loading...
Need help?
General