October 2014 x 06-236115-001
TABLE OF CONTENTS (CONT.)
4-3.10.2 Multiple Cylinder System........................................................................ 4-27
4-3.10.3 Main and Reserve System...................................................................... 4-29
4-3.11 Installation of Electric Control Heads ....................................................... 4-29
4-3.12 Installation of Pressure Operated Control Head, P/N 82-878751-000............ 4-31
4-3.13 Installation of Electric/Cable Operated Control Head,
P/N 81-895630-000 and P/N WK-897494-000 .......................................... 4-32
4-3.14 Installation of Cable Operated Control Head, P/N 81-979469-000................ 4-33
4-3.15 Installation of Lever Operated Control Head, P/N WK-870652-000............... 4-33
4-3.16 Installation of Nitrogen Cylinder, P/N WK-877940-000 and
Mounting Bracket, P/N WK-877845-000................................................... 4-34
4-3.17 Installation of Pressure Switch, P/N 81-486536-000 and
P/N 81-981332-000 .............................................................................. 4-34
4-3.18 Installation of Pressure Trip, P/N 81-874290-000...................................... 4-35
4-3.19 Installation of Manual Pull Station, P/N 81-871403-000.............................. 4-35
4-3.20 Installation of Discharge Indicator (P/N 81-875553-000)............................ 4-35
4-3.21 Installation of Supervisory Pressure Switch (P/Ns 06-118262-001 and
06-118263-001)................................................................................... 4-36
4-3.21.1 Installation of Pressure Switch 06-118262-001 ......................................... 4-38
4-3.21.2 Installation of Pressure Switch 06-118263-001 ......................................... 4-38
4-3.22 Post-Installation Checkout...................................................................... 4-39
CHAPTER 5 MAINTENANCE
5-1 Introduction......................................................................................... 5-1
5-2 Maintenance Procedures ........................................................................ 5-1
5-2.1 General ............................................................................................... 5-1
5-3 Preventative Maintenance ...................................................................... 5-2
5-4 Inspection Procedures ........................................................................... 5-2
5-4.1 Daily................................................................................................... 5-2
5-4.1.1 Check HFC-227ea Cylinder Pressure ........................................................ 5-2
5-4.1.2 Check Nitrogen Cylinder Pressure............................................................ 5-2
5-4.2 Monthly............................................................................................... 5-2
5-4.2.1 General inspection ................................................................................ 5-2
5-4.2.2 Hazard access ...................................................................................... 5-2
5-4.2.3 Inspect hoses....................................................................................... 5-3
5-4.2.4 Inspect Pressure Control Heads .............................................................. 5-3
5-4.2.5 Inspect Electric Control Heads ................................................................ 5-3
5-4.2.6 Inspect Cylinder and Valve Assembly....................................................... 5-3
5-4.2.7 Inspect Brackets, Straps, Cradles and Mounting Hardware.......................... 5-3
5-4.2.8 Inspect Discharge Hoses........................................................................ 5-3
5-4.2.9 Inspect Actuation Line........................................................................... 5-3
5-4.2.10 Inspect Discharge Nozzles...................................................................... 5-4
5-4.2.11 Inspect Pull Stations.............................................................................. 5-4
5-4.2.12 Inspect Pressure Switches...................................................................... 5-4
5-4.3 Inspection Procedures, Semi-Annual........................................................ 5-4
5-4.3.1 Pressure Switch Test............................................................................. 5-4
5-4.3.2 Electric Control Head Test...................................................................... 5-5
5-4.3.3 Check HFC-227ea cylinder weights and pressures ..................................... 5-6
5-4.3.3.1 Cylinders Not Equipped with Flexible Tape Liquid Level Indicator ................. 5-6
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