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DUCTLESS MINI SPLIT SYSTEM AIR CONDITIONER / HEAT PUMP
WYT-22 Inverter Series
For 9,000-24,000 BTU/hr Systems
Installation &
User's Manual
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.
CS78421-548-754
REV112421
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Table of Contents
Related Manuals for Pioneer WYT018GLFI22RL
Summarization of Contents
System Components
High Wall-Mounted Air Conditioner
Describes the system's configuration, including indoor and outdoor units connected by pipes and cables.
Indoor Unit Overview
Front Panel Display
Explains the indicators and symbols on the indoor unit's front panel display for status monitoring.
Emergency Manual Button and Auto-Restart
Details the emergency operation button and the auto-restart feature for power failure recovery.
Operating Instructions
Remote Buttons Overview
Details the functions of each button on the remote control for system operation and mode selection.
Remote Controller LED Screen and Icons
Explains the various icons displayed on the remote control's LED screen and their meanings.
Remote Controller Battery Replacement
Instructions for safely replacing batteries in the remote control unit.
Cooling Mode Operation
How to select and operate the cooling mode for lowering room temperature and humidity.
Heating Mode Operation
How to select and operate the heating mode for raising room temperature.
Fan Speed Adjustment
Instructions for changing the fan speed settings, cycling through Auto, Low, Mid, and High.
Timer Function - Turning ON
Steps to set a time delay for the system to automatically turn itself on.
Timer Function - Turning OFF
Steps to set a time delay for the system to automatically turn itself off.
Mute Mode Operation
How to activate the MUTE mode for quiet operation, reducing fan speed.
Operating Temperature Guidelines
Important notes on system operating temperature ranges and built-in protections.
Maintenance of the Air Conditioner
Importance of Periodic Maintenance
Emphasizes the necessity of regular maintenance for system efficiency and longevity.
Indoor Unit Maintenance
Details cleaning of anti-dust filters and interior components of the indoor unit.
Maintenance Safety Precautions
Crucial safety warnings and precautions to follow before performing any maintenance.
Indoor Unit Installation Instructions
Indoor Unit Location Selection
Guidelines for choosing the optimal installation location for the indoor unit.
Installation Diagram and Restrictions
Provides installation diagrams with required clearance and height restrictions.
Mounting Plate Installation
Steps for installing the indoor unit mounting plate securely on the wall.
Drilling the Wall Hole
Guidance on drilling the wall hole for piping and cables, including hole size and angle.
Indoor Unit Electrical Connections
Detailed instructions for wiring the indoor unit's electrical connections correctly.
Refrigerant Piping Preparation
Steps for preparing and routing the indoor unit's refrigerant piping through the unit.
Connecting the Drain Hose
Instructions for connecting the drain hose for proper condensate drainage.
Connecting the Signal Cable
How to connect the signal cable between the indoor and outdoor units.
Connecting Refrigerant Piping to Indoor Unit
Steps for connecting the refrigerant pipes to the indoor unit's valves.
Wrapping Lines and Mounting Unit
How to wrap lines and securely mount the indoor unit onto the mounting plate.
Outdoor Unit Installation Instructions
Outdoor Unit Location Selection
Guidelines for choosing the optimal installation location for the outdoor unit.
Mounting the Outdoor Unit
Instructions for securely mounting the outdoor unit to a pad or wall bracket.
Outdoor Unit Electrical Safety
Critical safety regulations and warnings for electrical work on the outdoor unit.
Cable Specifications for Connection
Details on appropriate cables and their specifications for power and signal connections.
Outdoor Unit Power and Signal Wiring
Instructions for wiring the power and signal cables to the outdoor unit's terminal block.
Refrigerant Piping Specifications
Details on pipe length, diameters, and refrigerant charge requirements for different capacities.
Refrigerant Piping Connection Steps
Instructions for cutting, deburring, and preparing refrigerant pipes for connection.
Flaring Pipe Ends
Procedure for flaring pipe ends to ensure an airtight seal for refrigerant connections.
Connecting Pipes
Steps for connecting the refrigerant pipes to the outdoor unit's valves.
Minimum Bend Radius and Torque Warnings
Guidelines on minimum bend radius and warnings against excessive torque during connection.
Air Evacuation and Bleeding
Procedure for evacuating the refrigeration circuit using a vacuum pump to remove air and moisture.
Detailed Evacuation Instructions
Further steps and checks for the air evacuation process, including valve operation.
Electrical and Gas Leak Check
Electrical Safety Checks
Verifying electrical wiring safety and grounding before operation.
Gas Leak Detection Methods
Techniques for checking refrigerant gas leaks using soap water or a leak detector.
Test Run Procedure
Step-by-step guide for performing the system test run to verify functionality.
Test Run Checklist and Considerations
Checks to perform during and after the test run, including low temperature conditions.
Troubleshooting
Common Malfunctions and Causes
Lists potential issues with the unit and their probable causes.
Error Signals on Display
Explains error codes displayed by the indoor unit and their meanings.
Appendix
Anchoring the Outdoor Unit
Instructions and dimensions for securely anchoring the outdoor unit to the ground or wall.
Wall Hole Drilling Guidelines
Recommended locations and dimensions for drilling wall holes for piping and cables.
Simplified Wiring Diagrams
Electrical wiring diagrams for 115V and 230V system configurations.
European Disposal Guidelines
Information on proper disposal methods for the appliance in Europe.
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