Navien NFC-175, Руководство по установке и эксплуатации

Страница: 109 / 124

109 Appendixes
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 or High Altitude. Place these
labels adjacent to the rating plate as shown in Figure 10.
Orifice 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:
-0.45 in WC
BTU Input / Debit calorifique:
Max. 199,900 - Min. 18,000 BTUh
Conversion Kit No.:
NAC-LC200
Inlet Gas Pressure / Pression d'entrée du gaz:
Min. 8.0 to Max. 13.0 in WC
Orifice Size / Injecteur:
Min. 6.3 mm to Max. 6.8 mm
This unit has been
converted to High Altitude /
Cet appareil a ete converti au Haute altitude
Manifold Gas Pressure /
Pression à la tubulure d’alimentation:
-0.20 in WC
BTU Input / Debit calorifique:
Max. 199,900 - Min. 18,000 BTUh
Conversion Kit No.: NAC-NCH200
Inlet Gas Pressure / Pression d'entrée du gaz:
Min. 8.0 to Max. 13.0 in WC
Figure 10. 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.
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 100). 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 9. 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 9. 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.