Navien NP Condensing Tankless Gas Water Heater - Service Manual
Navien NP Condensing Tankless Gas Water Heater - Service Manual
Navien NP Condensing Tankless Gas Water Heater - Service Manual
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8.2.10. GPS<br />
1. Turn off the gas supply<br />
2. Turn off the 120V power supply<br />
3. Turn off the water supply<br />
4. Loosen the PCB right-side screw from<br />
bottom base<br />
5. Remove the gas pressure sensor connecting<br />
housing into the PCB.<br />
8. Remove the gas pressure sensor 2 tubes<br />
into the gas pressure sensor.<br />
< Figure 28 ><br />
< Figure 26 ><br />
6. Pull out the PCB. (refer to 8.2.1 PCB)<br />
7. Loosen the gas pressure sensor lower-side<br />
2 screws from base.<br />
9. Replace with new gas pressure sensor.<br />
10. Assemble the gas pressure sensor 2 tubes.<br />
11. Attach the gas pressure sensor and<br />
secured with 2 screws.<br />
12. Replace the PCB. (refer to 8.2.1 PCB)<br />
13. Install front panel using 4(four) screws.<br />
14. Turn on water supply, power supply, and<br />
gas supply.<br />
NOTE<br />
Always use right type of tube and right place.<br />
< Figure 27 ><br />
©<strong>Navien</strong> America Inc. 2010<br />
147<br />
NR/<strong>NP</strong> series service <strong>Manual</strong><br />
Version 2.0
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