PART III: OPERATION
43
Oil Flow Rate Settings by means of Siemens SQM40.. actuator
1 Once the air and gas flow rates are adjusted, turn the burner off, switch the
CM
switch to the heavy oil operation (OIL, on the bur-
ner control panel.
2 with the electrical panel open, prime the oil pump acting directly on the related
CP
contactor (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
M
pressure gauge port by loosing the cap without removing it, then release the contactor.
Fig. 10
4 Before starting the burner up, drive the high flame actuator microswitch matching the low flame one (in order to let the burner ope-
rates at the lowest output) to achieve safely the high flame stage .
5 record the high flame value set during the gas operation adjustments (see previous paragraphs);
6 start the burner up by means of the thermostat series and wait until the pre-purge time comes to an end and that the bruner starts
up;
7 drive the burner to high flame stage, by means fo the thermostat
TAB
(high/low flame thermostat - see Wiring diagrams), as far as
fully-modulating burners, see related paragraph.drive the burner to high flame stage, by means fo the thermostat
TAB
, as for fully-
modulating burners, see next paragraphs.
8 Then move progressively the microswitch to higher values until it reaches the high flame position; always check the combustion
values and eventually adjusting the oil pressure (see next step).
SQM40.265 CSV Actuator cams
9
10 the nozzle suplly pressureis already factory-set and must not be changed. Only if necessary, adjust the supply pressure as follows
(see related paragraph); insert a pressure gauge into the port shown on Fig. 15 and act on on the pump adjusting screw
VR
(see
Suntec E7
Suntec TA.
Suntec TA.
CP
VR
M
VR
M
VR
M
MAN-AUTO
(RD) I
High flame
(BU) II
Stand-by
(OG) III
Low flame - gas
(YE) IV
Low flame - oil
(BK) V
Ignition - oil
(GN) VI
Ignition - gas