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HANKISON HPRplus Series - User Manual

HANKISON HPRplus Series
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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 .................................................8
SIZING ......................................................................8
ENGINEERING DATA (Models 100-250)...................9
ENGINEERING DATA (Models 300-750)...................10
WIRING DIAGRAM (Models 100, 125 & 150) ...........11
WIRING DIAGRAM (Models 200-600 - 460 VAC) .....12
WIRING DIAGRAM (Model 750 - 460 VAC) .............. 13
DIMENSIONS / WEIGHTS ........................................ 14
TROUBLESHOOTING GUIDE (Models 100-150) .....15
TROUBLESHOOTING GUIDE (Models 200-750) .....16
PARTS LIST ..............................................................17
WARRANTY..............................................................20
INSTRUCTION MANUAL
HPRplus Series with ColdWave™ Technology
Models: HPRP 100, 125, 150, 200, 250, 300,
400, 500, 600, 750
5002730 Rev. A 5/06
18-2-675 5th Edition
Internal Use Only
060519
SERVICE DEPARTMENT: (724) 746-1100

Table of Contents

Questions and Answers

  • G
    goodwinmarcAug 20, 2025
    What causes a high pressure drop across my HANKISON HPRplus?
    • J
      Jennifer FloresAug 20, 2025
      A high pressure drop across your HANKISON Dehumidifier can stem from a few potential issues. Excessive airflow could be the cause, so check the flow rate. Another possibility is the freezing of moisture in the evaporator due to a refrigeration system fault; in this case, consult section D. Lastly, a clogged separator filter element can lead to a pressure drop, so replace the filter element.
  • M
    montgomerykarenAug 27, 2025
    What does it mean if the dew point indicator is in the red area on my HANKISON HPRplus?
    • J
      John CaldwellAug 27, 2025
      If the dew point indicator on your HANKISON Dehumidifier is in the red area, this suggests that the dryer is overloaded, leading to a high air outlet temperature. Refer to section A 7. Alternatively, the refrigeration system might not be functioning properly, also resulting in a high air outlet temperature; in this case, consult section D.
  • E
    Elizabeth ChambersNov 3, 2025
    What to do if there is water downstream of my HANKISON HPRplus?
    • M
      Melissa LongNov 3, 2025
      If you notice water downstream of your HANKISON Dehumidifier, several factors could be responsible. It might be due to residual free moisture in the pipelines; in this case, blow out the system with dry air. Check the valve positions because the air bypass system might be open. Ensure that the inlet and outlet connections are correctly connected. If air lines downstream are exposed to temperatures below the dew point, insulate or heat trace them, or use dry air to lower the dew point. Excessive free moisture at the dryer inlet might be the cause, so install a separator ahead of the dryer. Condensate drainage issues can also lead to this problem; ensure the drain mechanism isn't clogged or inoperative, the drain line isn't restricted or frozen, and, for electric drains, the timer is set for...
  • S
    Scott MillerNov 11, 2025
    Why is my HANKISON HPRplus's refrigeration system not functioning properly?
    • M
      Michael GarciaNov 11, 2025
      Several issues can cause the refrigeration system of your HANKISON Dehumidifier to malfunction. First, check if the power is on. If the power light is off, ensure the unit is receiving power. Verify that the line disconnect switch is closed and inspect for blown fuses or open breakers, checking for continuity. Faulty wiring or loose terminals can also be culprits, so have an electrician inspect the electrical connections. High or low ambient conditions might affect the system; check the minimum and maximum temperature ranges. If your system is air-cooled, inspect for dirty or clogged condenser fins and ensure there's no obstruction to airflow across the condenser. Also, check the fan motor or fan control switch. If the issue persists after cleaning the condenser and ensuring free airflow, ...

Summary

GENERAL SAFETY INFORMATION

Safety Precautions

Covers pressurized devices, electrical hazards, and breathing air suitability.

RECEIVING AND HANDLING

Receiving, Moving, and Unpacking

Procedures for inspecting, moving, and unpacking the dryer.

INSTALLATION

1.1 Location

Guidance on selecting a suitable installation site, including clearances and environmental considerations.

INSTALLATION DETAILS

Mounting and Piping

Instructions for physical mounting and connecting air and water lines.

Electrical Connections

Guidelines for wiring the dryer unit, including voltage and connection points.

Moisture Separator Operation

Specifics for 100-150 and 200-750 models regarding condensate drainage.

OPERATION GUIDELINES

Operating Conditions and Start-up

Specifies operational limits and initial startup procedures for different models.

Program Monitor Configuration

Instructions for setting language, date, time, and automated operation schedules.

CONTROL PANEL FUNCTIONS

Indicators and Buttons

Description of all panel indicators, buttons, and their operational functions.

OPERATIONAL CHECKS AND RS-232

Verification Procedures and Fault Diagnosis

Checking operational status, indicators, and diagnosing common faults.

RS-232 Port Usage

Guidelines for connecting and communicating with a host computer via serial port.

MAINTENANCE AND SIZING

Routine Maintenance Tasks

Procedures for condenser, separator, and drain maintenance.

Dryer Sizing Considerations

How to select the correct dryer model based on airflow and operating conditions.

ENGINEERING DATA (Models 100-250)

ENGINEERING DATA (Models 300-750)

WIRING DIAGRAMS (Small Models)

Model 100 (120;230 VAC)

Wiring diagram for the Model 100 unit.

Models 125;150 (120;230 VAC)

Wiring diagram for Models 125 and 150 units.

WIRING DIAGRAM (Medium Models)

Models 200-600 (460 VAC)

Wiring diagram for models 200 through 600 at 460 VAC.

WIRING DIAGRAM (Large Model)

Model 750 (460 VAC)

Wiring diagram for the Model 750 unit at 460 VAC.

DIMENSIONS AND WEIGHTS

Model Dimensions

Table detailing the physical dimensions of each dryer model.

Model Weights

Table listing the weight of each dryer model.

Unit Views and Connections

Diagrams illustrating physical layout and connection points.

TROUBLESHOOTING (Models 100-150)

Water Downstream of Dryer

Resolving issues with water in compressed air lines.

High Pressure Drop

Identifying causes of increased pressure drop across the dryer.

Dew Point Indicator Red

Addressing high air outlet temperature or dew point issues.

Refrigeration System Malfunctions

Diagnosing power, compressor cycling, and ambient condition problems.

TROUBLESHOOTING (Models 200-750)

Water Downstream of Dryer

Resolving issues with water in compressed air lines.

High Pressure Drop

Identifying causes of increased pressure drop across the dryer.

System Faults and Alarms

Diagnosing various alerts like service, low/high pressure, temperature, and component faults.

REPLACEMENT PARTS LIST

Maintenance Kits

Available kits for scheduled maintenance procedures.

PRODUCT WARRANTY

Warranty Period and Terms

Details on coverage duration, limitations, and repair procedures.

HANKISON HPRplus Series Specifications

General IconGeneral
ModelHPRplus Series
CategoryDehumidifier
DimensionsVaries by model
WeightVaries by model
TypeDesiccant
Airflow Capacity5 - 3000 scfm
Airflow5 - 3000 scfm
Moisture Removal CapacityVaries by model
Operating Temperature Range35° to 120°F (2° to 49°C)
Operating Temperature35° to 120°F (2° to 49°C)
Power SupplyVaries by model
Pressure DropVaries by model
Inlet PressureVaries by model
Desiccant TypeSilica Gel
Purge Air RequirementVaries by model

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