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Heat Controller VMH12SC-1 User Manual

Heat Controller VMH12SC-1
45 pages
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Heat Controller, Inc. 1900 Wellworth Ave. Jackson, MI 49203 (517)787-2100 www.heatcontroller.com
SERVICE MANUAL
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VMH Series Version C
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VMH24SC-1
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Heat Controller VMH12SC-1 Specifications

General IconGeneral
HSPF9
RefrigerantR410A
Cooling Capacity12000 BTU/h
Heating Capacity12000 BTU/h
Power Supply60 Hz

Summary

Safety Precautions

General Safety Instructions

General instructions to prevent injury, damage, and ensure safe operation.

Installation and Electrical Safety Warnings

Warnings on electrical work, grounding, circuit breakers, and secure installation.

Operational and Handling Precautions

Guidelines for safe operation, power cable handling, and avoiding contact with water.

Product Care and Environmental Safety

Cautions on refrigerant leaks, drainage, cleaning, and operation in closed spaces.

Unit Functions

Indoor Unit Functions

Details on indoor unit operations like remote control, temperature sensing, fan speed, and air direction.

Outdoor Unit Functions

Overview of outdoor unit features including compressor delay, noise reduction, and protection mechanisms.

Unit Dimensions

Indoor Unit Dimensions

Specifications and diagrams for indoor unit dimensions and installation clearances.

Outdoor Unit Dimensions

Specifications and diagrams for outdoor unit dimensions and airflow paths.

Refrigerant Cycle Diagram

Wiring Diagrams

Indoor Unit Wiring

Diagrams illustrating the internal wiring connections for indoor units.

Outdoor Unit Wiring

Diagrams showing the external wiring connections for outdoor units.

Installation Details

Power Wiring Requirements

Guidelines for power wiring, including circuit codes, voltage, and cable size recommendations.

Pipe Length and Elevation Guidelines

Specifications for refrigerant pipe length, elevation, and refrigerant charge adjustments.

Pressure Test and Evacuation Procedure

Steps for performing pressure tests and vacuum evacuation of the refrigerant system.

Operation Characteristics

Electronic Functions and Controls

Abbreviations and Display Icons

Definitions of technical abbreviations and explanation of indoor unit display icons.

Unit Protection and Operation Modes

Details on unit protection functions and various operation modes like Cooling, Heating, and Auto.

Compressor and Fan Control Logic

Rules governing compressor and fan speed based on temperature, current, and mode.

Specialized Modes and Functions

Functions including Dehumidify, Forced Operation, Timer, Sleep, Auto-Restart, Panel, and Ionizer.

Troubleshooting and Maintenance

Troubleshooting Safety and Error Codes

Safety precautions for troubleshooting and a list of indoor unit error codes.

Error Diagnosis and Solutions (E0-P4)

Detailed diagnostic procedures and solutions for specific error codes (E0 through P4).

Component Resistance Testing

Methods for checking compressor, motor, and sensor resistance values for diagnosis.

Sensor Resistance-Temperature Data

Reference data for sensor resistance values at different temperatures.

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