Rational SCC Series Training Manual page 133

Flue gas analysis for Hot Air at MAX rpm and cross checking CO
(201-202 only)
on
1 2 3 4
16 - Function Test
Start
Gas Hot Air Blower bottim
Max
CO2 FC rpm
xxx% 5,5—A xxx
16 - Function Test
Start
Gas Hot Air Blower Bottom
Min
CO2 FC rpm
xxx% 5,5—A xxx
on
3
1 2 4
1) Switch on unit
2) Open front panel
3) Set DIP switch 1 on PCB to „ON" position
4) Press Service-key
5) Select Function Test"
6) Select at „FunctionTest" the position 16 „Gas Hot Air Burner BOTTOM"
7) Press key and select „Max" rpm, if it's not already selected
8) Activate the burner with the „Start" key.
Note: Start key is used as a switch and will automatically deactivate
after 4 minutes.
Display 4 indicates the desired CO
rent, i.e. 5,5 —A and the corresponding rpm of the blower motor.
9) Place À ue gas testing nozzle in correct À ue outlet;
10) Adjust CO to given value by turning CO
2
You also can ¿ nd that value on table „Values for burner adjustments"
If CO value is too low => turn CO
2
If CO value is too high => turn CO
2
tion), and than slowly anti clockwise (+ direction) until you get the indicated
CO value. (Screw adjustment tolerance).
2
CO value must be below 300 ppm!
11) Press „Stop" key. Blower will stop.
12) Press key and select „Min" speed.
13) Activate the burner with the „Start" key. Note: Start key is used as a
switch and will automatically deactivate after 4 minutes
Check CO values. Measured values shall correspond with the table
2
„Values for burner adjustment" in this manual. Should CO2 value be out
of the allowable range change gas valve.
Press „Stop" key. Blower will stop.
14) To exit program set DIP switch 1 to „OFF";
Edition 10-2008a
value, e.g. 9,2%, À ame cur
2
screw on gas valve.
2
screw anti clockwise (+ direction),
2
screw ¿ rst 1 turns clockwise (- direc-
2
Gas
at MIN rpm
2
133