Slant/Fin VSL-160C Part B - Manual (Page 24)

60
11.6 - Convert the
boiler from Natural
Gas to Propane gas
or viceversa
WARNING!!!
The gas
conversion shall be performed
by a qualifi ed service agency
in accordance with this
instructions and all applicable
codes and requirements of the
authority having jurisdiction.
The information in these
instructions must be followed
to minimize the risk of fi re
or explosion or to prevent
property damage, personal
injury or death. The qualifi ed
service agency is responsible
for the proper conversion of
the boiler. The installation is
not proper and complete until
the operation of the converted
appliance is checked as
specifi ed in this instructions.
WARNING!!!
The
conversion shall be carried
out in accordance with
the requirements of the
provincial authorities having
jurisdition and in accordance
with the requirements of the
CAN-B149.1 and CAN1-B149.2
installation code.
Contents:
The conversion kit (supplied with the
boiler) is composed of the following
elements, which are necessary for the
gas change:
- a label rating the new gas setting;
- an instruction sheet;
- an orifi ce;
Installing:
in order to make the gas change
please follow the instructions below:
1 - turn off power to the boiler;
2 - open the boiler’s casing (Follow
Section 14.2);
3 - open the instrument panel (Follow
Section 9.2);
4 - Move switch #7 (see Figure 9-2)
from OFF position to ON position;
5 - turn on power to the boiler;
6 - on the boiler’s display you’ll see
followed by a number;
7 - using the push buttons and
set the input to:
- 61 to convert the boiler from LP
GAS to NATURAL GAS
or
- 62 to convert the boiler from
NATURAL GAS to LP GAS,
8 - push button to save the
new value;
9 - turn off power to the boiler;
10 - Move switch #7 (see Figure 9-2)
from ON position to OFF position;
11 - Replace the orifi ce item “C” of
Figure 11-2 for the correct one for
the type of gas used. Verify that the
Gas Type TY value
setting
Min.
supply
pressure
Max.
supply
pressure
Orifi ce CO2
content at
high fi re
CO2
content at
low fi re
O2
content at
high fi re
O2 content
at low fi re
CO content at
high and low fi re
/ / in.W.C. in.W.C. Stamping % % % % ppm
Natural gas 61 3 13 9.1 9.2 ± 0.1 8.7 ± 0.3 4.5 ± 0.1 5.4 ± 0.3 less than 150
LP gas 62 3 13 5.7 9.5 ± 0.2 9.5 ± 0.3 6.4 ± 0.2 6.4 ± 0.3 less than 250
Table 11-3 Settings of the boiler for NATURAL GAS and LP GAS
11 - INSTALLATION - Gas supply
stamping on the orifi ce matches the
gas type (See Table 11-3).
11 - turn on power to the boiler;
12 - Turn completely counter
clockwise the screw E of Figure
11-2;
13 - Checking gas supply pressure
following Section 12.7. The Gas
supply pressure must be between
the maximum and minimum value
as stated in Table 11-3.
14 - Verifying the CO2 rate and its
eventual adjustment following
Section 12-9: The boiler during
its normal operation, within a
maximum altitude of 2000 ft, has
a CO2 exhaust rate as shown in
Table 11-3. If not within range of
value shown, malfunctions will
occur.
WARNING!!!
The CO
(carbon monoxide) level should
not exceed values given in
Table 11-3, when combustion is
correct. Failure to comply with
this requirement could result in
severe personal injury, death or
substantial property damage.
WARNING!!!
All
combustion measurements
must be performed with
calibrated equipment to ensure
proper reading and accuracy.
Failure to comply with this
requirement could result in
severe personal injury, death or
substantial property damage.