c. Activate multiple zones and set the boiler to operate at
1-stage MIN mode (refer to "(3) Operation Conditions
Settings" on page 59). 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 12. Using a 5/32 in or 4mm Allen wrench, turn
the set screw no more than 1/4 turn clockwise to raise or
counter clockwise to lower the offset value.
Figure 12 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.
19. 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 this labels adjacent to
the rating plate as shown in Figure 13.
Orice Size / Injecteur:
Min. 4.5 mm to Max. 4.8 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. -0.02 to Max. -0.66 inches WC
BTU Input / Debit calorique:
Max. 180,000 - Min. 19,900 BTUh
Conversion Kit No.: NAC-02
Inlet Gas Pressure / Pression d'entrée du gaz:
Min. 8.0 to Max. 13.0 inches
with Kit No. ________________________
This boiler was converted on
(name and address of organization making
this conversion, who accepts responsibility
for the correctness of this conversion)
______/______/______ to ____________ gas
by _________________________________
_________________________________
Figure 13. Proper Placement of Gas Conversion Labels
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