Fisher R622 User Manual

www.emersonprocess.com/regulators
Type R622
D103093X012
Instruction Manual
Form 5782
October 2009
Type R622 Pressure Reducing Regulator
Figure 1. Type R622 Regulator
!
WaRning
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion
and/or re causing property damage and
personal injury or death.
Fisher
®
regulators must be installed,
operated, and maintained in accordance
with federal, state, and local codes,
rules and regulations, and Emerson
Process Management Regulator
Technologies, inc. instructions.
For LP-gas service, an approved
regulator (such as one listed by UL)
should be used or approved by the
authority Having Jurisdiction. The
installation in most states, must comply
with nFPa 58 standard.
if the regulator vents gas or a leak
develops in the system, service to the unit
may be required. Failure to correct trouble
could result in a hazardous condition.
Call a gas service person to service
the unit. Only a qualied person must
install or service the regulator.
introduction
Scope of the Manual
This manual provides instructions for the installation,
adjustment, maintenance, and parts ordering information
for the Type R622 pressure reducing regulator.
Product Description
Type R622 direct-operated, spring-loaded regulators
provide economical pressure reducing control in
a variety of residential, commercial, and industrial
applications. These regulators can be used with
natural, manufactured, or liqueed petroleum gases and
have the same inlet and outlet pressure capabilities.
W8806

Fisher R622 Specifications

General

Brand	Fisher
Model	R622
Category	Controller
Language	English

Summary

Introduction and Product Overview

Scope of the Manual

Provides an overview of the manual's content.

Product Description

Describes the regulator's purpose and applications.

Safety Warnings

General Warning

Crucial safety warning about installation and maintenance.

Installation Warning

Critical safety information for installation.

Specifications

Key Specifications

Covers pressure, temperature, and connection details.

Installation and Operation Details

Principle of Operation

Explains how the regulator functions.

Vent Line Installation

Guides on proper venting for safety and performance.

Overpressure Protection

Details on preventing and managing overpressure conditions.

Operation Procedures

Startup

Steps for safely starting up the regulator.

Adjustment

Instructions for setting the regulator's pressure.

Shutdown

Procedures for safely shutting down the regulator.

Maintenance Procedures

Diaphragm and Disk Replacement

Detailed steps for replacing internal components.

Inlet Screen and Orifice Replacement

Instructions for replacing key inlet components.

Parts Information

Parts Ordering

Guidance on how to order replacement parts.

Parts List

A comprehensive list of regulator components and part numbers.