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Hayward HML125TA User Manual

Hayward HML125TA
34 pages
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Hayward/Summit Heat Pump
Troubleshooting Guide
© 2012 Hayward Industries
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Hayward HML125TA Specifications

General IconGeneral
ModelHML125TA
Heating Capacity125, 000 BTU/hr
Phase1
Hertz60 Hz
RefrigerantR-410A
COP (Heating)5.0
Compressor TypeScroll
Voltage208-230V

Summary

Critical Safety Guidelines and Warnings

General Heat Pump Safety Precautions

Covers essential safety guidelines for operating and servicing heat pumps.

High Voltage Hazard Awareness

Highlights the extreme caution required due to high voltage hazards.

Normal Operating Parameters and Checks

Normal Operation: Water Management & Leak Detection

Troubleshooting Error Code: LP

LP Code Interpretation and Causes

Explains the 'LP' code and its indication of low pressure.

LP Error Diagnosis and Resolution

Guides through diagnosing and resolving LP error codes.

Troubleshooting Error Code: HI/HP

HI/HP Code Interpretation and Causes

Explains the 'HI' or 'HP' code indicating high pressure.

HI/HP Error Diagnosis and Resolution

Guides through diagnosing and resolving HI/HP error codes.

Troubleshooting No Run with HI/HP Display

Addresses issues where the unit doesn't run but shows HI/HP.

Troubleshooting Sensor Error Codes (1/2)

PO/OP: Water Sensor Failure

Diagnosing and resolving 'PO' or 'OP' errors related to water sensors.

Pc/SH: Water Sensor Failure

Diagnosing and resolving 'Pc' or 'SH' errors for water sensors.

Troubleshooting Sensor Error Codes (2/2)

dPO/cOP: Defrost Sensor Failure

Diagnosing and resolving 'dPO' or 'cOP' errors for defrost sensors.

Sensor Resistance and Temperature Charts

Troubleshooting Error Code: Flo/PS

Troubleshooting Error Code: Blank Display

Troubleshooting Error Code: FS/deF

Hot Gas Bypass (HGBP) System Analysis

HeatPro Model Wiring Diagram

Summit Series Model Wiring Diagram

Comprehensive Heat Pump Specifications

Troubleshooting Flow Chart: PS/FLo Water Flow

Troubleshooting Flow Chart: HI/HP Pressure

Troubleshooting Flow Charts: Sensor Errors

Troubleshooting Flow Chart: LP Low Pressure

Advanced Leak Detection Techniques

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