Strebel SC-B, Инструкции по установке, эксплуатации и обслуживанию

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Page 31 of 51
8.7.2 Setting the minimum output
Set the minimum load once the maximum load has been set. In service mode turn the CH knob until the
minimum RPM setting has been reached (20 on the display). In order to set or adjust the minimum load, twist
the screw [1] for the minimum setting. Turn the screw clockwise to increase or anti-clockwise to decrease the
CO2 percentage, (see table 4 a page 30). The gas valve on the S-CB150 and S-CB180, you only are allowed
to set the gas valve on the right hand side.
DO NOT ADJUST THE LEFT HAND SIDE GAS VALVE
For Gas Valve Adjustment see illustration on page 29 Figure 4
8.8 Gas conversion
Converting from Nat. gas to LPG:
Boilers with a single gas valve: SCB 60 up to 120 kW:
See page 40
Boilers with a two gas valves: SCB 150 up to 180 kW: See page 41
NOTE:
Set LPG by CO emission
Setting LPG CO² % is not important, because it is influenced by the quality of the LPG,
which differs quite a lot; mostly the measured CO² % is roughly between 9.5% and 10%.
High Fire CO: is set to less than 100 ppm CO.
Low Fire CO is set to less than 10 ppm
.