Unigas PBY93, Manual For Use, Installation And Maintenance

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33
Oil Flow Rate Settings actuator
1 Turn the burner on by means of the main switch on the burner control panel (see chapter “Operation”);
2 with the electrical panel open, prime the oil pump acting directly on the related contactor
CP
(see next picture): check the pump
motor rotation and keep pressing for some seconds until the oil circuit is charged;
3 bleed the air from the
SA
port by loosing the cap
T
without removing it, then release the contactor and fasten cap
T
.
4 As for setting the fuel/air ratio curve, see the LMV2x/3x related manual.
5 The nozzle supply pressure is already factory-set and must not be changed. Only if necessary, adjust the supply pressure as fol-
lows (see related paragraph); read the pressure on the oil pressure gauge on picture below and act on the Suntec TV governor
adjusting screw VR (see picture below and description on page 20) as to get the nozzle pressure at 2bar (see step 8). If the requi-
red flow rate is not reached, increase the feeding pressure by means of the Suntec TV governor (see picture below); if it is too high,
reduce it.
6 Set the atomisation air according to the data in the nozze diagram attached, by means of the RB knob (see picture).
CP
T
SA
Pressure gauge port
VR