Unigas HR93A, Руководство по установке, использованию и обслуживанию

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C.I.B. UNIGAS - M039213CB
31
Attention! if it is necessary to change the head position, repeat the air and gas adjustments described above.
12 the air and gas rate are now adjusted at the maximum output, go on with the point to point adjustment on the SV1 adjusting cam
as to reach the minimum output point: gradually move the adjusting cam in order to adjust each of the V1 screws as to set the cam
foil shape as described on the next steps:
13 to change the SV1 position set the actuator on the manual mode (MAN), turn the adjusting cam SV1 and set again the actuator to
the AUTO mode to lock the adjusting cam;
14 act on the V1 screw that mathces the bearings referring to the adjusting cam position;
15 to adjust the next screw, set again the actuator mode to MAN, turn the adjusting cam and set the actuator to AUTO mode to lock
the adjusting cam on the next screw; adjust it and go on this way to adjust all the screws in order to set the cam foil shape, accor-
ding to the combustion values read.
16 Once the cam foil shape is defined, reconnect the TAB thermostat reconnecting the wire to the terminal no.6 or setting the RWF40
burner modulator to AUTO or the CMF switch to 3 (only for fully-modulating burner).
17 Turn the burner off, then start it up again.
18 Once the pre-purge time comes to end, drive the burner to the high flame stage by the TAB thermostat and check the combustion
values;
19 drive the burner to low flame, if necessary adjust the low flame size (ouput) by inserting a screwdriver on the slot F to move the
BF1 cam.
20 The low flame position must never match the ignition position that is why cam BF1 must be set 20°- 30° more than the ignition posi-
tion (see ID1 index on previous pictures).
Now adjust the pressure switches (see next paragraph).
VRT
VB
“MAX” head position
“MIN” head position
SV1
V1
SV2
RP
PG
SC
Gas throttle valve open
Gas throttle valve closed
BF
F