Rational Combi Master, Training Manual

Page: 123 / 200

123
Gas
Edition 10-2008a
Flue gas analysis Hot air bottom (F27)
at MAX rpm and Checking CO
2
(F25) at MIN rpm only (201/202)
1 2 3 4
on
1
2 3 4
on
1) Select any mode and cooking time
2) Open control panel
3) Set DIP switch 3 on PCB to „ON“ position
4) „F1“ is shown on timer display. With timer dial select position F27
5) Enter position F27 Hot air bottom MAX“ with timer key
6) Activate position F27 with core temperature key;
NOTE: In this position core temp. key is used as a switch and will automatically deactivate
after 4 minutes. Gas blower rpm is shown in cabinet temp. display.
Speci c CO
2
value is shown on timer display, i.e. 9,4
7) Place ue gas testing nozzle in correct ue outlet.
Adjust
CO
2
to given value by turning CO
2
screw on gas valve.
You also can nd that value on table “Values for burner adjustments.
• If CO
2
value is too low => turn CO
2
screw anti clockwise (+ direction),
• If CO
2
value is too high => turn CO
2
screw rst 1 turns clockwise (- direction), and
than slowly anti clockwise (+ direction) till you get the indicated CO
2
value. (Screw
adjustment tolerance).
• CO value must be below 300 ppm
8) Press core temperature key. Burner will stop.
9) Leave position F27 Hot air bottom MAX“ with timer key.
10) Select position F25 with timer dial.
11) Enter Hot air bottom MIN“ with timer key.
12) Activate position F25 with core temperature key.
NOTE: in this position core temp. key is used as a switch and will automatically deactivate
after 4 minutes. Speci c CO
2
value is shown on timer display, i.e 8,7
13) Carry out a CO
2
measurement to cross-check CO
2
value only.
CO
2
value must be equivalent to the values mentioned in table “Values for burner adjust-
ments“
14) If CO
2
value is out of allowed tolerance => Change gas valve
15) Press core temperature key. Burner will stop.
16) Leave position F25 Hot air bottom MIN“ with timer key.
17) To exit service program set DIP switch 3 to „OFF“ position