Victaulic FireLock 756 Series User Manual

TABLE OF CONTENTS
Hazard Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installer Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Maintenance and Testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Tri
m Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Exp
loded View Drawing – Trim Components . . . . . . . . . . . . . . . . . . . . 4
Exploded View Drawing – Internal Valve Components . . . . . . . . . . . . . 5
Section View Drawing and Description –
Series 776 Low-Pressure Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Section View Drawing and Description –
Ser
ies 746-LPA Dry Accelerator. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Air Supply Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Com
pressor Sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Base or Riser-Mounted Air Compressors . . . . . . . . . . . . . . . . . . . . . 8
Shop Air or Tank-Mounted Air Compressors. . . . . . . . . . . . . . . . . . . 8
Victaulic Series 757 Regulated Air Maintenance
Trim Assembly (AMTA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Victaulic Series 757P Air Maintenance Trim
Assembly (AMTA) with Pressure Switch. . . . . . . . . . . . . . . . . . . . 8
Compressor Requirements and Settings for
Series 756 FireLock Dry Valves Installed with
Series 746-LPA Dry Accelerators . . . . . . . . . . . . . . . . . . . . . . . . . 9
Settings for Air Supervisory Pressure Switches and
Alarm Pressure Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Remote System Test Valve Requirements. . . . . . . . . . . . . . . . . . . . . 9
Important Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Valve/Trim Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Hydrostatic Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Placing the System in Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
External Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Weekly Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Monthly Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Required System Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Water Flow Alarm Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Water Level and Low Air Alarm Tests . . . . . . . . . . . . . . . . . . . . . . . 18
Required Operational (Trip) Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Partial Operational (Trip) Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Full Operational (Trip) Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Required Internal Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Remo
ving and Replacing the Clapper Seal. . . . . . . . . . . . . . . . . . . 26
Remo
ving and Replacing the Clapper Assembly. . . . . . . . . . . . . . . 28
Installing the Cover Plate Gasket and Cover Plate. . . . . . . . . . . . . . 29
Removing and Replacing the Piston Assembly. . . . . . . . . . . . . . . . 30
Replacing the Strainer Screen for
Series 776 Low-Pressure Actuators . . . . . . . . . . . . . . . . . . . . . . 30
Troubleshooting – Series 776 Low-Pressure Actuator . . . . . . . . . . . . . 31
Troubleshooting – Series 746-LPA Dry Accelerator . . . . . . . . . . . . . . 31
Troubleshooting – System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Facilities Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B/C
HAZARD IDENTIFICATION
Definitions for identifying the various hazard levels are
provided below. When you see this symbol, be alert to the
possibility of personal injury. Carefully read and fully
understand the message that follows.
WARNING
The use of the word “WARNING” identifies the presence
of hazards or unsafe practices that could result in death or
serious personal injury if instructions, including recommended
precautions, are not followed.
•
CAUTION
The use of the word “CAUTION” identifies possible hazards or
unsafe practices that could result in personal injury and prod-
uct or property damage if instructions, including recommended
precautions, are not followed.
•
NOTICE
The use of the word “NOTICE” identifies special instructions
that are important but not related to hazards.
•
I-756LPA.VDS_1
FireLock
®
European Dry Valve Stations
SERIES 756
WITH SERIES 776 LOW-PRESSURE ACTUATOR
I-756LPA.VDSINSTALLATION, MAINTENANCE, AND TESTING MANUAL
www.victaulic.com
VICTAULIC IS A REGISTERED TRADEMARK OF VICTAULIC COMPANY. © 2006 VICTAULIC COMPANY. ALL RIGHTS RESERVED. PRINTED IN THE USA.
REV_B
DISCONTINUED PRODUCT

Victaulic FireLock 756 Series Specifications

General

Brand	Victaulic
Model	FireLock 756 Series
Category	Control Unit
Language	English