Navien NFB-175H, Installation Manual, Page: 131 / 135

131 Appendixes
# Description Service code Part # Remark
1 Heat Exchanger Assembly 30021656A 30021564*
2 Drain Pan Assembly 30019173A 20040239*
3 Drain Pan Packing 30019173A 20040241*
4 Exhaust Duct (Lower) 30019174A 20040242*
5 Exhaust Duct Clip 30019174A 20042741*
6 Exhaust Duct Packing (G90) 30019174A 20027350*
7 Exhaust Duct Packing (P85) 30019174A 20042823*
8 Exhaust Duct Adaptor 30019174A 20040727*
9 Exhaust Duct Cap 30019174A 20029712*
10 Exhaust Duct Packing (Upper) 30019174A 20044452*
11 Air Pressure Sensor 30015811A 30015811*
12 Air Pressure Sensor Hose - 20006685*
13 Thermistor (Exhaust) 30020489A 30020489*
14 Screw (Ø4x6) - 20006535*
15 O-ring (P26) - 20032409*
16 Drain Pan Adapter - 20041181*
17 Packing (Drain Pan Adapter) - 20041449*
18 Screw (Ø4x10) - 20038753*
19 O-ring (V32) - 20048667*
20 Supply Pipe (Upper) - 30026106*
21 Heat Exchanger Outlet Adapter - 20051172*
22 Overheat Preventer 30023954A 30023954*
23 Temperature Sensor 30012907A 30012907*
24 Supply Pipe (Lower) - 30026105*
25 Clip (Ø32) 20040255A 20040255*
26 Heating Supply Adapter - 20051173*
27 Water Pressure Sensor 30021482A 30021482*
28 Water Pressure Sensor Packing 20006873A 20006873*
29 Heat Exchanger Inlet Adapter - 20040246*
30 Packing 20048670A 20048670*
31 Return Pipe 30019175A 30019175*
32 Bolt (Ø8x20) - 20042814*
33 Heat Exchanger Drain Cap 20042273B 20042237*