Emerson Fisher 161AY Series Instruction Manual

Instruction Manual
D102600X012
August 2018
Type EZR Pressure Reducing Regulator
161AY SERIES PILOT
!
Failure to follow these instructions or
to properly install and maintain this
equipment could result in an explosion
and/or fire 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.
(Emerson) instructions.
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 qualified person must install
or service the regulator.
Figure 1. Type EZR Pressure Reducing Regulator
WARNING
TYPE EZR REGULATOR
Introduction
Scope of the Manual
This instruction manual provides installation,
startup, adjustment, maintenance and parts ordering
information for Type EZR pressure reducing regulator,
Types 112 restrictor, 161AY, 161EB and PRX Series
pilot. Any accessories used with this regulator are
covered in their respective instruction manuals.
Product Description
The Type EZR pilot-operated, pressure reducing
regulators are used for natural gas, air or other
non-corrosive gas applications and include a
Type 112 restrictor and a 161EB, 161AY or
PRX Series pilot.
Pilot Type Descriptions
Type 161AY—Low-pressure pilot with an outlet
pressure range of 6 in. w.c. to 7 psig / 15 mbar to
0.48 bar. Pilot bleeds (exhausts) downstream through
the sense (control) line.
Type EZR
TYPE PRX PILOT