IBC SL 30-199 G3 Installation And Operating Instructions

3-3
STARTUP AND COMMISSIONING
SL 10-85 G3, SL 14-115 G3, SL 20-160 G3, SL 30-199 G3 MODULATING GAS BOILERS
To verify the proper operation of the gas valve in the eld, the following procedure must
be carried out by a qualied technician (see Figure 44 for details of the gas valve and
pressure system ).
1. With a small (1/8” or 3 mm) at screwdriver, open the inlet gas supply pressure test
port by turning its center-screw one full turn counterclockwise. Attach a manometer
to the pressure test port and turn on the gas to the appliance. The static manometer
reading should be ideally 7” w.c. for Natural Gas and 11” w.c. for Propane. Minimum
and maximum static pressure should be between 5” and 14” w.c. Monitor pressure
throughout the commissioning procedure. Pressure may droop up to 1” to 2” w.c. at
high re but under no circumstances should it drop below 4” w.c. at the gas valve
inlet test port.
2. Allow the boiler to ignite / run against a large load to maintain high re.
You can temporarily dene a load as Manual for direct control of the boiler ring rate
as long as the load number is associated with a pump that can remove the heat.
Closing the corresponding Therm connection initiates manual ring.
3. With a combustion analyzer probe in the ue gas test port, turn the Gas:Air Ratio
Adjustment screw (see Figure 44) to achieve results (see Table 7 below for the
corresponding CO
2
values - set the CO
2
target at high re). This screw offers very ne
adjustment, and may require several turns.
Note: This screw has signicant backlash. When changing direction of turn, it may
take up to a full turn before any change is indicated on the analyzer reading. Clock
the gas meter to conrm full maximum rating plate input.
4. Conrm the minimum re level settings. Re-dene the load as “Manual Control”.
Use Heat Output in “Congure Load x” to control the output as needed. The reading
should be within the Low re range. Re-test at high re.
5. Turn boiler off by removing the call for heat (use the Heat Load Conguration screen
to turn load to off if no other ready means available), then remove the manometer
connections, and turn the centre-screw in the manifold pressure test port 1 full turn
clockwise. Ensure fully closed, but not over-tightened. Restore gas and soap test for
leaks.
FUEL HIGH FIRE LOW FIRE
CO MAX
PPM
RANGE TARGET RANGE TARGET
Natural Gas 9.0 – 10.0 9.5 8.2 – 9.2 8.7 < 150
Propane 10.3 – 11.3 10.8 9.3 – 10.3 9.8 < 250
Note: Low Fire CO
2
should be at least 0.5% lower than High Fire CO
2
Table 7: Combustion test target ranges - CO
2
/ Maximum CO
DANGER
Making adjustments to the IBC gas
valve without a properly calibrated
gas combustion analyzer and by
persons who are not trained and
experienced in its use is forbidden.
Failure to use an analyzer can
result in an immediate hazard.
WARNING
Check the rating plate of the
boiler to ensure it is congured
for the fuel you are using. If the
fuel is incorrect for the appliance,
a conversion kit must be ordered
from IBC and the gas valve
adjusted accordingly.
Failure to perform the required
fuel conversion can result in an
immediate hazard.

IBC SL 30-199 G3 Specifications

General

Brand	IBC
Model	SL 30-199 G3
Category	Boiler
Language	English