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Pioneer WYT Series User Manual

Pioneer WYT Series
39 pages
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CS78421-548-754
DUCTLESS MINI SPLIT SYSTEM AIR CONDITIONER / HEAT PUMP
IMPORTANT NOTICE:
Please read this manual carefully before installing
or operating your new air conditioning system.
Be sure to save this manual for future reference.
Service Manual
WYT Inverter Series
For
9,000-36,000 BTU/hr Systems

Table of Contents

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Pioneer WYT Series Specifications

General IconGeneral
BrandPioneer
ModelWYT Series
CategoryAir Conditioner
LanguageEnglish

Summary

Important Notice

How to Order Spare Parts

Provides information required for ordering spare parts efficiently and correctly.

Product Dimensions

Indoor Unit Dimensions

Details the dimensions and specifications for the indoor unit of the air conditioner.

Outdoor Unit Dimensions

Details the dimensions and specifications for the outdoor unit of the air conditioner.

Refrigeration Cycle Diagram

Cooling & Heat Pump Cycles

Illustrates the refrigeration cycle for both cooling-only and heat pump operation modes.

Operation Details

Remote Controller Functions

Explains the functions of each button on the remote controller for operating the unit.

Remote Control Mode Setting

Details how to set the remote controller type (Cooling Only vs. Heat Pump).

Electronic Controller Features

Safety Protection Features

Outlines various safety protection mechanisms built into the electronic controller.

Feel Mode Operation

Describes the operation and settings of the 'Feel' mode for user comfort.

Cooling Mode Operation

Explains how the compressor frequency is controlled in cooling mode.

Dry Mode Operation

Details the system operation and set temperature adjustments in DRY mode.

Heating Mode Operation Details

Describes frequency control and indoor fan motor control in HEATING mode.

Heating Fan Control & Defrosting

Covers auto fan control, 4-way valve, and defrosting logic in heating mode.

Sleep, Emergency & Auto-Restart

Explains SLEEP mode, emergency operation, and auto-restart function.

Protection & Failure Display

Explains how error codes and protection statuses are displayed on the unit.

Error and Protection Codes

Failure Type Error Codes

Lists various failure types and their corresponding LED and Digital LED codes.

Protection Display Codes

Lists protection types and their corresponding function indicators and digital LED codes.

Outdoor Unit Failure Indicators

Explains the LED indicators on the outdoor power board for failure display.

Outdoor Power Board Diagnostics

Outdoor Power Board Blink Times

Maps blink times to specific failure codes displayed on the outdoor power source board.

Wiring Diagrams

Wiring Diagram: WYT009/012 ALFI19RL

Provides the wiring diagram for specific indoor and outdoor unit models.

Wiring Diagram: WYT012 GLFI19RL

Shows the wiring diagram for the WYT012GLFI19RL model, including indoor and outdoor units.

Wiring Diagram: WYT009/018/024/036 GLFI19RL

Displays the wiring diagram for multiple WYT models, covering indoor and outdoor units.

Installation Safety Precautions

Installation Safety Rules & Recommendations

Provides essential safety guidelines and recommendations for the installation process.

User Safety Precautions

User Safety Rules & Recommendations

Outlines crucial safety rules and recommendations for the end-user during operation and maintenance.

Safety Prohibitions

General Safety Prohibitions

Lists specific safety rules and prohibitions to prevent hazards and damage.

Parts Identification

Indoor & Outdoor Unit Parts

Identifies and lists the various parts of the indoor and outdoor units with corresponding numbers.

Installation Manual Details

Connecting Pipe & Refrigerant Specs

Details pipe sizes, lengths, and additional refrigerant requirements for installation.

Connecting Cable Specifications

Provides specifications for selecting appropriate wire sizes for connecting cables.

Initial Installation Procedures

Indoor & Outdoor Unit Placement Guidelines

Provides guidelines for the initial installation of the indoor and outdoor units.

Installation Steps

Mounting Plate & Piping Hole Installation

Details steps for mounting plate installation and drilling a piping hole in the wall.

Indoor Unit Electrical Connections

Guides on making electrical connections for the indoor unit.

Installation Connections

Refrigerant Piping & Pipe Connections

Details refrigerant piping connection, pipe joining, and water drainage.

Indoor Unit Water Drainage

Emphasizes proper condensed water drainage for successful installation.

Installation Connections & Bleeding

Outdoor Unit Electronic Connections

Guides on making electronic connections for the outdoor unit.

Pipe Connection & Bleeding Procedure

Details pipe connection to outdoor unit and bleeding refrigerant circuit.

Troubleshooting Overview

Outdoor Control System Diagram

Illustrates the control diagram of the outdoor system, detailing its components and functions.

Outdoor PCB Structure

Shows the physical layout and components of the Outdoor Unit Printed Circuit Board (ODU PCB).

Outdoor PCB Connections

ODU PCB Connection Diagram

Provides a detailed connection diagram for the Outdoor Unit Printed Circuit Board (ODU PCB).

Electrical Flow

Current Flow Diagram

Illustrates the flow of electrical current between units and compressor.

Troubleshooting Examples (E1/E2, E6)

Troubleshooting E1 or E2 Errors

Guides on troubleshooting and repairing issues related to E1 or E2 error displays.

Troubleshooting E6 Errors

Provides troubleshooting steps for errors indicated by E6 on the display.

Troubleshooting Examples (E3/E7, E8)

Troubleshooting E3 or E7 Errors

Offers solutions for troubleshooting and repairing E3 or E7 error codes.

Troubleshooting E8 Errors

Details troubleshooting methods for errors indicated by E8 on the unit display.

Troubleshooting Examples (E0/E5, EA)

Troubleshooting E0 or E5 Errors

Explains how to diagnose and fix communication faults indicated by E0 or E5 errors.

Troubleshooting EA Errors (Current Sensor)

Provides troubleshooting guidance for current sensor faults indicated by EA.

Troubleshooting Examples (E9, EU)

Troubleshooting E9 Errors (Drive Circuit)

Guides on troubleshooting drive circuit damage indicated by E9, P0, or P9.

Troubleshooting EU Errors (Voltage Sensor)

Offers troubleshooting for voltage sensor damage indicated by EU error.

Troubleshooting Examples (EE, CL)

Troubleshooting EE Errors (EEPROM)

Provides solutions for EEPROM faults indicated by EE error display.

Troubleshooting CL Errors (Filter)

Explains how to address filter replacement alerts indicated by CL display.

Malfunction Check Methods

Outdoor Unit IPM/Compressor Check Procedure

A flowchart to diagnose malfunctions related to the outdoor unit's IPM or compressor.

DC Over Current Error Troubleshooting

DC Over Current Error Procedure

Detailed procedure for diagnosing and resolving DC over current errors in the unit.

E0, E5 Error Troubleshooting Flowchart

E0, E5 Error Resolution Flowchart

Flowchart to diagnose and resolve E0 and E5 errors, focusing on communication issues.

Thermistor Temperature Characteristics

Indoor/Outdoor Sensor Characteristics

Lists temperature vs. resistance and voltage data for indoor and outdoor sensors.

Outdoor Unit Sensor Data

Provides temperature vs. resistance data for outdoor unit sensors.

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