Navien NPE-180A, Руководство по обслуживанию

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Version 2.21 124 NPE Service Manual
5. Disconnect the wiring connector from the Ignition Transformer
(Figure 9).
Figure 9
6. Remove the 2 screws from the Ignitor Transformer.
Figure 10
7. Pull out the Ignition Transformer.
8. Replace the old Ignition Transformer with the new part, and
then use the 2 screws to secure the part.
9. Reconnect the Ignition Transformer insulated cables to the
flame rod.
10. Reattach the wiring connectors from the Ignition Transformer.
11. Place the front panel back onto the unit and secure it by using
the 4 screws.
12. Turn on water supply, power supply, and gas supply to the
unit.
NOTE
Verify that the Ignition Transformer insulated cables are firmly
connected to the flame rod.
6. Remove the flame rod wiring connector.
Figure 8
7. Remove the flame rod from the burner assembly and replace
with the new part.
8. Reconnect the 2 ignition transformer insulated cables to the
new flame rod.
9. Place the new flame rod back onto the burner assembly and
secure it by using the 2 screws from Figure 7.
10. Turn on water supply, power supply, and gas supply to the
unit.
NOTE
Always use new factory gaskets included with the flame rod
when replacing the part onto the burner assembly.
6.2.5 Ignition Transformer
1. Turn off the gas supply to the unit.
2. Disconnect the unit from the power supply.
3. Turn off the water supply to the unit.
4. Remove the Ignition Transformer insulated cables from the
flame rod.