Navien CH-180, Service Manual, Page: 132 / 155

© Navien Ameri c a I n c . 20 1 0 CH series servi c e Manua l Version 1 .0
8.2.11. Condensation Trap
7. Loosen the three condensation trap
screws.
1. Turn off the gas supply
2. Turn off the 120V power supply
3. Turn off the water supply.
4. Remove the four screws securing
the front panel. Remove front panel.
5. Pull out the PCB. (refer to 8.2.1
PCB)
6. Remove the Pin(A). Drain Conden
sate water from the trap. 8. Remove the condensation trap con
necting hose.
10. Pull out the Condensation trap.
11. Replace with new condensation
trap.
12. Connects the condensation trap
hose.
13. Attach the condensation trap and
secured with three screws.
14. Replace the PCB. (refer to 8.2.1
PCB)
15. Install front panel using 4(four)
screws.
16. Turn on water supply, power
supply, and gas supply.
NOTE
1. Always make sure pin on right
direction and secure.
2. When installed the condensation
trap connecting hose, it should be
installed from the secondary heat
exchanger drain port first and then
to trap.
13 0
Figure 29
Figure 31
Figure 30