UNITED Nitrogen Pac SC-W, Installation, Commissioning Maintenance

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UNITED FIRE SYSTEMS - NITROGEN-
PAC™
MODEL SC-W
INSTALLATION, COMMISSIONING, AND MAINTENANCE MANUAL
REVISION 1.01 MAR 2021 - P/N 30-NPWICM-000
iv
LIST OF FIGURES
Figure
No.
Description Page
SECTION 1
– GENERAL INFORMATION
1 Functional Description and General Arrangement 4
2 Model SC-W Assembly
– Internal Arrangement
6
3 Model SC-W Assembly
– External Arrangement
8
4 Nitrogen Receiver
– Model NR-5
9
5 Nitrogen Receiver
– Model NR-10
10
6 Nitrogen / Air Maintenance Device
– Model NAMD-1
11
7 Purge Vent Assembly, Manual
– Model PVA-4
12
8 Purge Vent Assembly (For TRUE ADVANCED PURGE Device)
– Model PVA-2
13
9 N
2
Purity Analyzer, Hand-Held
– Model NA-2
14
10 TRUE ADVANCED PURGE (TAP) Device
– Model TAP-G3
15
11 Corrosion Monitor Assembly
– Model CMA-1
16
SECTION 2
– EQUIPMENT SELECTION
12 Type I Model SC-W System Arrangement 19
13 Type
II
Model SC-W System Arrangement 20
14 Model SC-W with Model NR-5 Wall-Mount 27
15 Model SC-W with Model NR-5 Riser-Mount 28
16 Model SC-W with Model NR-10 Floor-Mount 29
SECTION 3
– INSTALLATION
17 Dimensions
– Model SC-W Assembly
32
18 Strut Channel Mounting
– Model SC-W Assembly
33
19 N2 Purity Analyzer Connection
– Model SC-W Assembly
34
20 Outlet Connection
– Model SC-W Assembly
35
21 Using Top Entry Raceway Attachment Point
– Model SC-W Assembly
38
22 Using Left-Side Raceway Attachment Point
– Model SC-W Assembly
39
23 Dimensions
– Model NR-5 Nitrogen Receiver
41
24 Wall-Mounting with Strut Channel
– Model NR-5 Nitrogen Receiver
42
25 Riser-Mounting
– Model NR-5 Nitrogen Receiver
43
26 Connections
– Model NR-5 Nitrogen Receiver
44
27 Dimensions
– Model NR-10 Nitrogen Receiver
45
28 Mounting
– Model NR-10 Nitrogen Receiver
45
29 Connections
– Model NR-10 Nitrogen Receiver
46
30 Purge Vent Assembly Model PVA
– Dimensions and Installation in Vertical Piping
48
31 Purge Vent Assembly Model PVA
– Installation in Horizontal Piping
49
32 Installation
– Corrosion Monitor Assembly Model CMA-1
51
33 Electrical Connection
– Corrosion Monitor Assembly Model CMA-1
52
SECTION 4 - COMMISSIONING
34 Model SC-W Assembly
– Valve Locations and Numbers
54
35 Bypass Valve and Indicator Operation 55
36 Model SC-W Assembly
– External Indicators and Controls
56
37 Packaging Material
– Air Compressor
57
SECTION 5 - MAINTENANCE
38 Model SC-W Assembly Components 63
39 Model PVA Purge Vent Assembly (Model PVA-2 Shown) 66