©Navien America Inc. 2010 NR/NP series service Manual
1
Version 2.0
Contents
REVISIONS 5
NAVIEN WARRANTY 6
HANDLING OF THIS MANUAL 9
ABBREVIATION AND DEFINITION 10
1. SAFETY CONSIDERATIONS 11
1.1. SAFETY DEFINITIONS 11
1.2. LIST OF SAFETY SYMBOLS IN THIS MANUAL 11
1.3. SYMBOLS USED THE INSTRUCTIONS 11
1.4. SAFETY PRECAUTIONS 12
2. PRODUCT INFORMATION 17
2.1. PRODUCT INFORMATION 17
2.2. LAYOUT AND KEY COMPONENTS 18
2.2.1. NR-A Model 18
2.2.2. NP-A Model 19
2.2.3. NR Model 20
2.2.4. NP Model 21
3. TECHNICAL DATA 22
3.1. GENERAL SPECIFICATIONS 22
3.2. DIMENSIONS 23
3.2.1. NR-A, NP-A Model 23
3.2.2. NR, NP Model 24
4. SYSTEM DETAILS 25
4.1. SCHEMATIC AND FLOW DIAGRAM 25
4.1.1. NR-A Model 25
4.1.2. NP-A Model 26
4.1.3. NR Model 27
4.1.4. NP Model 28
4.2. OPERATION FLOW CHART 29
4.3. DIP SWITCH SETTINGS 34
4.4. WIRING DIAGRAM 36
4.4.1. NR-A Model 36
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