©Navien America Inc. 2010 NR/NP series service Manual
4
Version 2.0
8.2.8. Manifold 143
8.2.9. Main Gas Valve 145
8.2.10. GPS 147
8.2.11. Condensation Trap 148
8.2.12. Water Adjustment Valve 149
8.2.13. Flow Sensor 150
8.2.14. Buffer Tank (“A” Series) 151
8.2.15. Circulation Pump (“A” Series) 152
8.2.16. 3-way Valve (“A” Series) 154
8.2.17. 2-way Valve (“NP-A” “NP” Series) 155
8.2.18. Bypass Mixing Valve (“Non-A” Series) 156
9. COMPONENTS DIAGRAM AND PART LIST 157
9.1. CASE DISASSEMBLE (NR/NP – A, NR/NP) 157
9.2. BURNER DISASSEMBLE (NR/NP – A, NR/NP) 159
9.3. WATER WAY DISASSEMBLE (NR-A) 162
9.4. WATER WAY DISASSEMBLE (NR) 163
9.5. WATER WAY DISASSEMBLE (NP-A) 164
9.6. WATER WAY DISASSEMBLE (NP) 165
10. INSPECTION AND MAINTENANCE SCHEDULE 169
10.1. ANNUAL SERVICING 169
10.2. INSPECTION REPORT 170
10.3. MAINTENANCE REPORT 171
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