Febco 860 Series - User Manual

IOM-F -860_860U
INSTALLATION, OPERATION, MAINTENANCE
Maintenance Manual
Series 860 Reduced Pressure Zone Assemblies
Models 860, LF860, 860U & LF860U
1
/2"- 2" (15 – 50mm)
Read and understand this manual prior to installing,
operating or servicing this equipment.
Series 860
Table of Contents
Feature and Operating Procedures................................ 2
Vandalism.................................................... 2
General Service Procedures ..................................... 3
Cut-A-Way Drawing ............................................ 3
Troubleshooting Guide ......................................... 4
Check Module Disassembly ..................................... 6
Check Module Seal Replacement................................. 6
Check Module Re-Assembly..................................... 7
Relief Valve Repair............................................. 7
Testing ...................................................... 9
Air Gap Drain Installation Instructions.............................. 9
Exploded View ...............................................10
Parts List ................................................... 10
Repair Kits .................................................. 11
Freeze Protection............................................. 11
Main Valve Draining Procedure (
1
/2" - 2")........................... 11
Warranty.................................................... 12
WARNING
!
Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use information
can result in death, serious personal injury, property
damage, or damage to the equipment.
Keep this Manual for future reference.
NOTICE
If the unit is installed where a protective device is recommended may be
a problem, the assembly should be protected and secured. On
1
/2" through
2" (15 – 50mm) units the handles of shutoff valves can be removed to
discourage tampering. A protective enclosure can be installed over the unit
to discourage vandals. If an enclosure is used, it should be installed so that
adequate clearance is available for maintenance and testing. Consult local
codes before installing any type of protective enclosure.

Summary

Feature and Operating Procedures

General Service Procedures

Cut-A-Way Drawing

Diagram illustrating the internal components and flow path of the Series 860 assembly.

Troubleshooting Guide

Troubleshooting with Differential Pressure Gauge

Diagnosing issues using a differential pressure gauge and common symptoms.

Troubleshooting without Differential Pressure Gauge

Diagnosing issues without a differential pressure gauge using observed results.

Check Module Disassembly

Check Module Seal Replacement

Check Module Re-Assembly

Relief Valve Repair

Testing Procedures

Air Gap Drain Installation

Exploded View and Parts

Repair Kit Ordering

Ball Valve Shutoff Draining

Main Valve Draining Procedure

Febco 860 Series Specifications

General

Pressure Rating	175 psi
End Connections	Flanged
Series	860
Maximum Working Pressure	175 psi
Hydrostatic Test Pressure	350 psi
Type	Reduced Pressure Zone Assembly
Size Range	2 1/2", 3", 4", 6", 8", 10"
Material	Ductile Iron
Temperature Range	33°F