Hansen HA4AL - 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

Summary

HA4 A Modular Pressure Regulators

HA4 A Regulator Applications

Lists various industrial sectors and specific control functions where HA4A regulators are ideal for use.

HA4 A Regulator Technical Details

Installation Procedures and Precautions

Covers essential steps and precautions for proper installation to ensure correct function and safety.

HA4 A Regulator Variations Explained

HA4 A Regulator Operation and Adjustment Details

Standard HA4 A Regulator Operation & Adjustment

Details how the standard regulator functions and how to adjust its pressure setting.

Reseating Relief Regulator Operation & Adjustment

Explains the operation and adjustment of the reseating relief type regulator.

Differential Pressure Regulator Operation & Adjustment

Covers the functioning and adjustment procedures for the differential pressure regulator.

HA4 A Specific Regulator Models: Operation & Adjustment

Outlet Pressure Regulator Operation & Adjustment

Details the operation and adjustment of the HA4AO outlet pressure regulator.

Electric Wide Opening Regulator Operation & Adjustment

Explains the operation and adjustment for the HA4AB electric wide opening regulator.

Electric Shut-Off Regulator Operation & Adjustment

Covers the operation and adjustment of the HA4AS electric shut-off regulator.

Dual Pressure Regulator Operation & Adjustment

Details the operation and adjustment procedures for the HA4AD dual pressure regulator.

HA4 A Special Function Regulators: Operation & Adjustment

Pneumatically Compensated Regulator Operation & Adjustment

Describes the HA4AP operation and adjustment based on pneumatic controller input.

Temperature Operated Regulator Operation

Explains the operation of the HA4AT temperature operated regulator using bulb and capillary system.

Electronically Controlled Regulator Operation & Adjustment

HA4 AM Electric Motor Compensated Regulator

HA4 AM Regulator Operation

Explains how the motor receives signals from a temperature controller to alter regulator pressure setting.

HA4 AM Regulator Adjustment Procedure

Guides users on adjusting the temperature controller and regulator for optimal performance.

Service and Maintenance Procedures

Troubleshooting Regulator Failures

Addresses common issues like failure to open or close and their potential causes.

Disassembly and Cleaning Procedures

Provides step-by-step guidance for disassembling, cleaning, and inspecting regulator components.

Ordering Information and System Support

Ordering HA4 A Modular Pressure Regulators

Safety Precautions and Warranty Information

Highlights critical safety warnings for system operation and outlines product warranty coverage.

Hansen HA4AL Specifications

General

Brand	Hansen
Model	HA4AL
Category	Controller
Language	English