Rational SCC Series, Training Manual

Page: 131 / 200

131
Gas
Edition 10-2008a
Flue gas analysis for STEAM at MAX rpm and cross checking CO
2
at MIN rpm
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 14 „Gas Steam Burner“
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
2
value, e.g. 9,2%, ame cur
rent, i.e. 5,5 A and the corresponding rpm of the blower motor.
9) Place ue gas testing nozzle in correct ue outlet;
10) „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 (- direc-
tion), and than slowly anti clockwise (+ direction) until you get the indicated
CO
2
value. (Screw adjustment tolerance).
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
2
values. Measured values shall correspond with the table
„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“;
Flue gas analysis
1 2 3 4
on
14 - Function Test
Gas Steam Blower
Max
CO2 FC rpm
xxx% 5,5A xxx
14 - Function Test
Gas Steam Blower
Min
CO2 FC rpm
xxx% 5,5A xxx
1
2 3 4
on
Start
Start
Before starting ue gas analysis make sure your ue gas
analyser is set to the correct connected gas type!