Camus Hydronics Valiant-FT II Series, Installation And Service Manual

Page: 20 / 64

16
8. Next, on the test screen menu, press the UP or
DOWN buttons to select “High Power” and wait for
the boiler to ramp up to High Fire.
9. Once the boiler ramps up to High Fire, the
readings on the Combustion Analyzer should
match the High Fire values in table 11 (table 12 for
LP Gas). If the values match, skip to the next step.
10. Find the High Fire trim on the gas valve and rotate
it counterclockwise to increase CO2 and clockwise
to decrease CO2 until the values match those in
the range of table 11 (table 12 for LP Gas).
Figure 31: High Fire Trim
11. Once the Low Fire and High Fire values are within
range of table 11, exit out of the menu and place
boiler
into operation by switching the
LOCAL/REMOTE switch into LOCAL and running
with a local demand or keep it in REMOTE and re-
enabling any external demand if required.
4.3 NATURAL GAS COMBUSTION VALUES
The appliance combustion values for Natural Gas should
be as below:
Table 11: Valiant FT Natural Gas Combustion Values
HIGH FIRE
Model CO2 % Range
Target
CO2% CO (ppm)
400
8.5%
– 10.0%
9.6% <150
500
600
725
850
LOW FIRE
Model CO2 % Range
Target
CO2% CO (ppm)
400
8.0%
– 9.5%
8.5% <50
500
600
725
850
4.4 LP GAS COMBUSTION VALUES
The appliance combustion values for
LP Gas should be as
below:
Table 12: Valiant FT LP Gas Combustion Values
HIGH FIRE
Model CO2 % Range
Target
CO2% CO (ppm)
400
9.6%
– 11.0%
10.5% <150
500
600
725
850
LOW FIRE
Model CO2 % Range
Target
CO2% CO (ppm)
400
9.6%
– 11.0%
10.0% <100
500
600
725
850
4.5 CONVERSION PROCEDURE FOR NG TO LP
GAS
To carry out a field conversion of a NG Valiant FT Series II
appliance to an LP gas unit, follow the conversion
procedure below.
1. Open adaptor connection connecting the gas
valve to the venturi.
2. Loosen the two screws on the air intake coupling
below.