Ignition Transformer - Navien NP-180 Service Manual

8.2.6. gnition Transformer
1. Turn off the gas supply
2. Turn off the 120V power supply
3. Turn off the water supply
4. Loosen the PCB right-side screw from
bottom base.
5. Pull out the fan assembly
(refer to 8.2.5 Fan motor)
6. Remove the Ignition Transformer Cable.
(refer to 8.2.6 Flame Rod)
7. Remove the igniter connecting housing into
the PCB.
< Figure 14 >
8. Loosen the two igniter screws.
< Figure 15>
©Navien America Inc. 2010
9. Pull out the Ignition Transformer.
10. Attach the new ignition transformer tighten
screws.
11. Connect the Ignition transformer cable into
the ignition electrode.
12. Connect the igniter connecting housing
into the PCB.
13. Install front panel using 4(four) screws.
14. Turn on water supply, power supply, and
gas supply.
NOTE
1. Check up whether fixing exactly done.
2. Check up the connecting terminal.
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NR/NP series service Manual Version 2.0