HANKISON HPET Series User Manual

HIGH PRESSURE
REFRIGERATED
TYPE
COMPRESSED
AIR DRYERS
CONTENTS
GENERAL SAFETY INFORMATION .............................. 2
RECEIVING, MOVING, AND UNPACKING .................... 2
1.0 INSTALLATION ........................................................ 3
2.0 OPERATION ............................................................ 5
3.0 MAINTENANCE ....................................................... 6
SIZING ............................................................................ 7
ENGINEERING DATA .................................................... 8
P&I DIAGRAM ................................................................ 9
WIRING DIAGRAMS ............................................... 10-12
DIMENSIONS / WEIGHTS ........................................... 13
TROUBLESHOOTING GUIDE ..................................... 14
PARTS LIST ................................................................. 15
WARRANTY ................................................................. 16
INSTRUCTION MANUAL
HPET Series with ColdWave™ Technology
Models: HPET - 4, HPET - 6, HPET - 7.5,
HPET - 10
5004258 09/08
18-2-675 5th Edition
SERVICE DEPARTMENT: (724) 746-1100

HANKISON HPET Series Specifications

General

Brand	HANKISON
Model	HPET Series
Category	Dehumidifier
Language	English

Summary

Instruction Manual

HPET Series with ColdWave Technology

Overview of the HPET Series compressed air dryers.

Models HPET-4, HPET-6, HPET-7.5, HPET-10

Specifies the range of models covered by this manual.

General Safety Information

Pressurized Devices

Safety warnings related to the pressure containment aspects of the equipment.

Electrical

Safety guidelines concerning electrical connections and operation.

Breathing Air

Important considerations for air quality when used for breathing purposes.

Receiving, Moving, and Unpacking

Receiving

Procedure for inspecting the shipment upon arrival for visible damage.

Unpacking

Steps for checking for concealed damage after unpacking.

Moving

Cautionary advice on handling and transporting the dryer.

Storage/Shut Down

Guidelines for safe storage and shutdown procedures, including temperature limits.

Installation

Location

Recommendations for placing the dryer within the compressed air system.

Mounting

Piping Connections

Air Inlet

Connecting the compressed air supply line to the dryer's air inlet.

Air Outlet

Connecting the dryer's air outlet to downstream air lines.

Bypass piping

Guidance on installing bypass piping for servicing the dryer.

Water cooled models

Instructions for connecting cooling water inlet and outlet for water-cooled units.

Electrical Connections

Moisture Separator

Operation

Minimum/Maximum Operating Conditions

Specifies the operational limits for air pressure, temperature, and ambient conditions.

Start-up

Step-by-step instructions for safely starting and pressurizing the dryer.

Timer Drain

Explanation of the timer drain function and its pre-programmed settings.

Timer Drain Programming Mode

Operating Check Points

Maintenance

Condenser Coil

Cleaning instructions for the air-cooled and water-cooled condenser coils.

Moisture Separator/Oil Removal Filter

Guidance on replacing the separator and filter elements.

Procedure for Separator / Filter Element Replacement

Check separator daily

Daily checks to ensure the automatic drain is functioning correctly.

Blow down separator weekly

Weekly procedure for blowing down the separator.

Rebuild drain mechanism annually

Annual maintenance for the drain mechanism.

Sizing

Determining dryer capacity at actual operating conditions

Methodology for calculating dryer capacity based on operating parameters.

Engineering Data

Models

Table detailing air system and refrigeration system specifications for each model.

Electrical Data

Electrical specifications including voltage, power input, and circuit requirements.

P&I Diagram

Models 4, 6, 7.5 and 10

Diagram illustrating the piping and instrumentation for the dryer models.

Wiring Diagram

Models 4, 6, 7.5 and 10 (230-400-460V/3/50-60 Hz) (Page 1 of 2)

Electrical schematic for various voltage and frequency configurations.

Wiring Diagram

Models 4, 6, 7.5 and 10 (230-400-460V/3/50-60 Hz) (Page 2 of 2)

Continuation of the electrical schematic for dryer models.

Wiring Diagram

Models 4, 6, 7.5 and 10 (575-460/3/60 Transformer Pack)

Electrical schematic specific to the 575V voltage option with transformer.

Dimensions / Weights

Front View

Diagram showing the front view with critical dimensions and mounting points.

Right Side View

Diagram illustrating the right side view with dimensions and connection details.

Bottom View

Diagram showing the bottom view with mounting hole specifications.

Detail A

Close-up view of water I/O connections for HPET 4 W/C model.

Detail B

Close-up view of water I/O connections for HPET 6-10 W/C models.

Troubleshooting Guide

Water downstream of dryer

Addresses issues related to water presence in downstream piping.

High pressure drop across dryer

Troubleshoots symptoms of excessive pressure drop within the dryer.

High Temperature Alarm

Diagnoses causes and solutions for high temperature alarms.

Refrigeration system not functioning properly

Covers common problems with the refrigeration system's operation.

Parts List

Maintenance Kits

Lists available maintenance kits for specific dryer models.

Warranty

Warranty Period

Details the duration and coverage of the manufacturer's warranty.