101Appendixes
c. Activate multiple zones and set the boiler to operate at
1-stage MIN mode (refer to “11.4.7 Setting the Special
Operation Modes” on page 95). Measure the offset value
at low fire and compare it to the values in Table 3. If the
offset value is out of range, the gas valve set screw will
need to be adjusted.
If adjustment is necessary, locate the set screw as shown
in Figure 10. Using a
5
/
32
in or 4mm Allen wrench, turn
the set screw no more than
1
/
4
turn clockwise to raise or
counterclockwise to lower the offset value.
Figure 10. Set Screw Location
Note
The set screw is located behind the screw-on cover.
This must be removed first.
d. At high fire, do not check the offset value and never adjust
the gas valve.
DANGER
Improper gas valve settings can cause severe personal injury,
death or substantial property damage.
13. Once the CO
2
or offset values have been confirmed, apply the
included conversion stickers to show that the appliance has
been converted to propane gas. Place these labels adjacent to
the rating plate as shown in Figure 11.
Orice Size / Injecteur:
Min. 4.5 mm to Max. 4.9 mm
This unit has been
converted to Propane fuel
Cet appareil a ete converti au Propane
Manifold Gas Pressure /
Pression à la tubulure d’alimentation:
Min. -0.10 to Max. -0.45 in WC
BTU Input / Debit calorique:
Max. 199,900 - Min. 19,900 BTUh
Conversion Kit No.: NAC-L200
Inlet Gas Pressure / Pression d'entrée du gaz:
Min. 8.0 to Max. 13.0 in
Figure 11. Proper Placement of Gas Conversion Labels
Note
The gas conversion rating plate varies depending
on the model. Check the conversion kit number
before attaching the labels.
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