Viking VXD User Manual

TECHNICAL DATA
MODEL VXD SINGLE-
INTERLOCKED PREACTION
SYSTEM WITH ELECTRIC
RELEASE
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com
Page 1 of 13
Form No. F_051820 21.01.01 Rev 21.1
1. INTRODUCTION
Viking supervised VXD Single-Interlocked Preaction Systems utilize a Viking
Model VXD Deluge Valve and a pneumatically pressurized automatic sprinkler
system. This feature helps prevent undetected leaks. Single-Interlocked Preaction
Systems are commonly used where the sprinkler system piping and/or sprinkler
may be subject to damage. If the system piping or a sprinkler is damaged,
supervisory pressure is reduced and a “low air” supervisory is activated. The
electrically controlled preaction systems include an electric solenoid valve
controlled by an approved release control panel (sold separately) with compatible
detection system (sold separately). In fire conditions, when the detection system
operates, the system release control panel energizes the solenoid valve open,
causing the deluge valve to open. The sprinkler system fills with water. If any
sprinklers have opened, water will flow from the system. If sprinklers have not
opened, water will be in the sprinkler system piping when the sprinkler operates.
A sprinkler must open before water flows from the system.
2. LISTINGS AND APPROVALS
cULus Listed - Categories VLFT and VLFT7
FM Approved
3. ORDERING INFORMATION
Table 1: Available Sizes for Model VXD Single-Interlock Preaction
System with Electric Release (Vertical)
Nominal
Size
Part Number
Loose trim
1
Galvanized
Loose trim
1
Brass
Pre-trimmed
2
Galvanized
 23562-1 23562-2 23563
2 23583-1 23583-2 23584
 23604-1 23604-2 23605
3 23625-1 23625-2 23626
4 23646-1 23646-2 23647
6 23668-1 23668-2 23669
8 23689-1 23689-2 23690
10 23750-1 23750-2 23751
1.
Loose trim packages do not include the deluge valve. Refer to the Model VXD Deluge Valve
Technical Data Page for available options.
2.
Pre-trimmed packages are only available with galvanized pipe and groove/groove valves.
New form.

Table 2: Additional System Component Information
Component Scan, click or tap Component Scan, click or tap
Pressure Operated
Relief Valve
(PORV)
Solenoid Valve

Viking VXD Specifications

General

Brand	Viking
Model	VXD
Category	Control Unit
Language	English

Summary

Introduction

Listings and Approvals

Ordering Information

System Components

System Operation: In the SET condition

In the SET condition

Explains the system's state when set, with water trapped in the priming chamber.

System Operation: In fire conditions

In fire conditions

Details system operation during fire, activation of alarms, and water flow.

System Operation: In trouble conditions

In trouble conditions

Describes system behavior during trouble conditions like low air pressure or sprinkler opening before detection.

System Operation: Manual operation

Manual operation

Explains manual system operation via the emergency release.

Installation: Important Settings

Important Settings

Covers recommended supervisory pressure and alarm pressure switch settings.

Installation: Air Supply Design

Air Supply Design

Discusses air supply compressor sizing and regulation for the system.

Placing the System in Service

Placing the Valve in Service

Step-by-step instructions for putting the valve into service.

Emergency Instructions

Inspections, Tests, and Maintenance: Inspection

Inspection

Details the weekly visual inspection requirements for the system.

Inspections, Tests, and Maintenance: Periodic System Tests

Quarterly Water Flow Alarm Test

Procedure for testing the quarterly water flow alarm.

Quarterly Main Drain Test

Procedure for conducting the quarterly main drain test.

Annual Trip Test

Steps for performing the annual trip test of the deluge valve.

Inspections, Tests, and Maintenance: Quarterly "Low Air" Pressure Alarm Test

Quarterly "Low Air" Pressure Alarm Test

Procedure for testing the quarterly "low air" pressure alarm.

Inspections, Tests, and Maintenance: Maintenance: After Each Operation

After Each Operation

Maintenance steps required after the system has operated.

Inspections, Tests, and Maintenance: Maintenance: Semi-Annually

Semi-Annually

Details semi-annual maintenance procedures for the system.

Inspections, Tests, and Maintenance: Maintenance: Every Fifth Year

Every Fifth Year

Requirements for internal inspections every five years.

Dimensions