Hansen HA4AD - User Manual

ADDITIONAL FEATURES
Tolerant of Dry Systems
For Ammonia, R22, R134a and other Hansen-
Approved Refrigerants
Wide Range of Options
Inlet, Outlet, or Differential Pressure
Wide Pressure Ranges
Electric Shut-Off, Dual, or Wide-Opening Available
Safe Working Pressure: 400 psig (28 bar g)
CSA Certified, CRN for Canada
Weld-In-Line Available; Contact Factory
INTRODUCTION
These advanced-design, strong-bodied, precision-
manufactured MODULAR regulators are superior in their
ability to overcome dirt and sticky oil during opening
and tight closing. Models are available for nearly every
control function requirement of industrial ammonia and
commercial halocarbon refrigeration. These regulators
are ideal for cold storage plants, poultry plants, meat
packing, fish processing, freezers, ice plants, breweries,
bottling plants, heat recovery units, petrochemical
plants, pharmaceutical plants, supermarkets, and many
others.
APPLICATIONS
Evaporator Pressure Control
Defrost Pressure Control
Condensing Pressure Regulation
Receiver Pressure Control
Hot Gas Bypass Capacity Regulation
Suction Pressure Control
Air or Liquid Temperature Regulation
Internal System Pressure Relief
V-PORT
MODULATION
IRON BODY
DUCTILE
DIRT WIPING
DISC-PISTON
MANUAL OPENING
STEM
RELIABLE
TEFLON SEAT
MODULAR PI
LOTS
HERE
SPRING
STAINLESS STEEL
DUCTILE
STRONG
GAUGE PORT
1/4'' NPT
KEY FEATURES
Contents Page
Regulator Variations 3
Capacities 4–5
Control Modules (Pilots) 6
Main Regulators Only (AR1, AR3) 7
Operation and Adjustment 8–11
Installation Dimensions 12–13
Parts List 14–18
Service and Maintenance, Abbreviations 19
Ordering Information, Conversions 20
Specifications, Applications,
Service Instructions & Parts
HA4A MODULAR
PRESSURE REGULATORS
¾" THROUGH 6" PORT
(20MM THROUGH 150MM)
Bulletin R429d
AUG 2015
Various Connection
Styles and Sizes
for Refrigerants
HA4AB Regulator with Electric Wide Opening

Hansen HA4AD Specifications

General

Protection Class	IP20
Type	Controller
Application	Industrial automation
Inputs	4 digital inputs
Outputs	4 digital outputs

Summary

Specifications, Applications, Service Instructions & Parts

Introduction and Key Features

Overview of the regulator, its introduction, and key features.

Regulator Variations Overview

Describes various HA4A regulator models and their functions.

Capacities and Sizing Information

Provides capacity data and guidance for selecting appropriate regulator sizes.

Control Module (Pilot) Functions

Details the different control modules (pilots) and their operational capabilities.

Main Regulator Bodies (AR1, AR3)

Describes the AR1 and AR3 main regulator bodies and pilot configurations.

Operation and Adjustment by Regulator Type

Explains operation and adjustment for different HA4A regulator types.

Installation Dimensions and Configurations

Provides installation dimensions for regulators and pilot piping configurations.

Parts Identification and Lists by Type

Lists replacement parts for control modules and different regulator sizes.

Service, Maintenance, and Abbreviations

Provides guidelines for servicing, maintenance, and a list of abbreviations.

Ordering, Accessories, and Conversions

Information on ordering, available accessories, unit conversions, and safety.