This article explains the layouts for the DIP switches of the Vertex Ducted Central Split (DYC-18) systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains the layouts for the DIP switches of the <a href="https://www.pioneerminisplit.com/collections/vertex-ducted-central-split" target="_blank" rel="noopener noreferrer">Vertex Ducted Central Split (DYC-18) systems</a>.&#xA0;</p><p>Buttons in the Up position indicate they&apos;re on.&#xA0;</p><h2 id="dip-switch-on-the-display-board"><u>DIP Switch on the Display Board</u></h2><p><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026020317-112d8c18-275e-478e-968d-e045d02024f3-dyc18_display_board_dip_switch.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></p><table style="width: 100%;"><tbody><tr><td style="width: 16.763%; text-align: center;" rowspan="2" class="fr-thick"><strong>SW1-1</strong></td><td style="width: 21.3805%; text-align: center;" class="fr-thick">On</td><td style="width: 61.712%;" class="fr-thick">RS-485 communication mode</td></tr><tr><td style="width: 21.3805%; text-align: center;" class="fr-thick">Off</td><td style="width: 61.712%;" class="fr-thick">24V control (factory default)</td></tr><tr><td style="width: 16.763%; text-align: center;" rowspan="2" class="fr-thick"><strong>SW1-2</strong></td><td style="width: 21.3805%; text-align: center;" class="fr-thick">On</td><td style="width: 61.712%;" class="fr-thick">Display unit: &#xB0;C and Mpa</td></tr><tr><td style="width: 21.3805%; text-align: center;" class="fr-thick">Off</td><td style="width: 61.712%;" class="fr-thick">Display unit: &#xB0;F and PSI (factory default)</td></tr><tr><td style="width: 16.763%; text-align: center;" rowspan="2" class="fr-thick"><strong>SW1-3</strong></td><td style="width: 21.3805%; text-align: center;" class="fr-thick">On</td><td style="width: 61.712%;" class="fr-thick">System operation mode: Cooling only</td></tr><tr><td style="width: 21.3805%; text-align: center;" class="fr-thick">Off</td><td style="width: 61.712%;" class="fr-thick">System operation mode: Heat pump (factory default)</td></tr><tr><td style="width: 16.763%; text-align: center;" rowspan="2" class="fr-thick"><strong>SW1-4</strong></td><td style="width: 21.3805%; text-align: center;" class="fr-thick">On</td><td style="width: 61.712%;" class="fr-thick">USB upgrade</td></tr><tr><td style="width: 21.3805%; text-align: center;" class="fr-thick">Off</td><td style="width: 61.712%;" class="fr-thick">Reserved (factory default)</td></tr><tr><td style="width: 16.763%; text-align: center;" rowspan="2" class="fr-thick"><strong>SW2-1</strong></td><td style="width: 21.3805%; text-align: center;" class="fr-thick">On</td><td style="width: 61.712%;" class="fr-thick">Fix timed defrost</td></tr><tr><td style="width: 21.3805%; text-align: center;" class="fr-thick">Off</td><td style="width: 61.712%;" class="fr-thick">Auto defrost (factory default)</td></tr><tr><td style="width: 16.763%; text-align: center;" rowspan="2" class="fr-thick"><strong>SW2-2</strong></td><td style="width: 21.3805%; text-align: center;" class="fr-thick">On</td><td style="width: 61.712%;" class="fr-thick">Timer 30 minutes</td></tr><tr><td style="width: 21.3805%; text-align: center;" class="fr-thick">Off</td><td style="width: 61.712%;" class="fr-thick">Timer 60 minutes (factory default)</td></tr><tr><td style="width: 16.763%; text-align: center;" rowspan="2" class="fr-thick"><strong>SW2-3</strong></td><td style="width: 21.3805%; text-align: center;" class="fr-thick">On</td><td style="width: 61.712%;" class="fr-thick">Powerful defrosting</td></tr><tr><td style="width: 21.3805%; text-align: center;" class="fr-thick">Off</td><td style="width: 61.712%;" class="fr-thick">Normal (factory default)</td></tr><tr><td style="width: 16.763%; text-align: center;" rowspan="2" class="fr-thick"><strong>SW2-4</strong></td><td style="width: 21.3805%; text-align: center;" class="fr-thick">On</td><td style="width: 61.712%;" class="fr-thick">O/B terminal energized in Cooling mode</td></tr><tr><td style="width: 21.3805%; text-align: center;" class="fr-thick">Off</td><td style="width: 61.712%;" class="fr-thick">O/B terminal energized in Heating mode (factory default)</td></tr><tr><td style="width: 16.763%; text-align: center;" rowspan="2" class="fr-thick"><strong>SW3-3</strong></td><td style="width: 21.3805%; text-align: center;" class="fr-thick">On</td><td style="width: 61.712%;" class="fr-thick">Accelerated cooling</td></tr><tr><td style="width: 21.3805%; text-align: center;" class="fr-thick">Off</td><td style="width: 61.712%;" class="fr-thick">Normal cooling (factory default)</td></tr><tr><td style="width: 16.763%; text-align: center;" rowspan="2" class="fr-thick"><strong>SW3-4</strong></td><td style="width: 21.3805%; text-align: center;" class="fr-thick">On</td><td style="width: 61.712%;" class="fr-thick">Accelerated heating</td></tr><tr><td style="width: 21.3805%; text-align: center;" class="fr-thick">Off</td><td style="width: 61.712%;" class="fr-thick">Normal heating (factory default)</td></tr></tbody></table><p><br></p><table style="width: 100%;"><tbody><tr><td style="width: 50%; text-align: center;" colspan="2" rowspan="2" class="fr-thick"><strong>Mode</strong></td><td style="width: 50%; text-align: center;" colspan="2" class="fr-thick"><strong>SW3-1</strong></td></tr><tr><td style="width: 25%; text-align: center;" class="fr-thick">On</td><td style="width: 25%; text-align: center;" class="fr-thick">Off</td></tr><tr><td style="width: 25%; text-align: center;" rowspan="2" class="fr-thick"><strong>SW3-2</strong></td><td style="width: 25%; text-align: center;" class="fr-thick">On</td><td style="width: 25%; text-align: center;" class="fr-thick">5 Ton</td><td style="width: 25%; text-align: center;" class="fr-thick">3 Ton</td></tr><tr><td style="width: 25%; text-align: center;" class="fr-thick">Off</td><td style="width: 25%; text-align: center;" class="fr-thick">4 Ton</td><td style="width: 25%; text-align: center;" class="fr-thick">2 Ton</td></tr></tbody></table><p><br></p><h2 id="dip-switch-on-the-indoor-control-board"><u>DIP Switch on the Indoor Control Board</u></h2><p><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026020318-0bb00510-3880-48bb-ac1c-3d7a0d1b52ba-dyc18_indoor_control_board_dip_switch.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></p><table style="width: 100%;"><tbody><tr><td style="width: 23.4104%; text-align: center;" rowspan="2" class="fr-thick"><strong>SW1-1</strong></td><td style="width: 76.5896%;" class="fr-thick">RS-485 communication mode</td></tr><tr><td style="width: 76.5896%;" class="fr-thick">24V thermostat control</td></tr><tr><td style="width: 23.4104%; text-align: center;" rowspan="2" class="fr-thick"><strong>SW1-2</strong></td><td style="width: 76.5896%;" class="fr-thick">Heating fan delay 90 seconds</td></tr><tr><td style="width: 76.5896%;" class="fr-thick">Anti-cooling fan delay</td></tr><tr><td style="width: 23.4104%; text-align: center;" rowspan="2" class="fr-thick"><strong>SW1-3</strong></td><td style="width: 76.5896%;" class="fr-thick">T1 temperature sensor from the thermostat</td></tr><tr><td style="width: 76.5896%;" class="fr-thick">T1 temperature sensor from the AHU return</td></tr><tr><td style="width: 23.4104%; text-align: center;" rowspan="2" class="fr-thick"><strong>SW1-4</strong></td><td style="width: 76.5896%;" class="fr-thick">USB port software update</td></tr><tr><td style="width: 76.5896%;" class="fr-thick">Reserved</td></tr></tbody></table><p><br></p><table style="width: 100%;"><tbody><tr><td style="width: 21.4595%; text-align: center;" class="fr-thick"><strong>SW2-1</strong></td><td style="width: 21.5476%; text-align: center;" class="fr-thick"><strong>SW2-2</strong></td><td style="width: 28.493%; text-align: center;" class="fr-thick"><strong>High Speed Taps</strong></td><td style="width: 28.2989%; text-align: center;" class="fr-thick"><strong>Low Speed Taps</strong></td></tr><tr><td style="width: 21.4595%; text-align: center;" class="fr-thick">Off</td><td style="width: 21.5476%; text-align: center;" class="fr-thick">Off</td><td style="width: 28.493%;" class="fr-thick">3 --- Medium</td><td style="width: 28.2989%;" class="fr-thick">1 --- Low</td></tr><tr><td style="width: 21.4595%; text-align: center;" class="fr-thick">On</td><td style="width: 21.5476%; text-align: center;" class="fr-thick">Off</td><td style="width: 28.493%;" class="fr-thick">4 --- Medium High</td><td style="width: 28.2989%;" class="fr-thick">2 --- Medium Low</td></tr><tr><td style="width: 21.4595%; text-align: center;" class="fr-thick">Off</td><td style="width: 21.5476%; text-align: center;" class="fr-thick">On</td><td style="width: 28.493%;" class="fr-thick">4 --- Medium High<br></td><td style="width: 28.2989%;" class="fr-thick">3 --- Medium</td></tr><tr><td style="width: 21.4595%; text-align: center;" class="fr-thick">On</td><td style="width: 21.5476%; text-align: center;" class="fr-thick">On</td><td style="width: 28.493%;" class="fr-thick">5 --- High</td><td style="width: 28.2989%;" class="fr-thick">4 --- Medium High<br></td></tr></tbody></table>

Understand the DIP Switches for Vertex Ducted Central Split (DYC-18) Systems

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First-Time Setup

Connect the Drain Hose for LCAC Systems

Connect the Refrigerant Piping to the Indoor Unit

Install the Decorative Panel for Quantum Ultra Ceiling Cassette (CYT-24) Systems

Prepare the Ceiling & Install the Hanging Hook for Quantum Ultra Ceiling Cassette (CYT-24) Systems

Select the Indoor Unit Installation Location for Quantum Ultra Ceiling Cassette (CYT-24) Systems

Set Up the Indoor Unit Condensate Piping Connections for Quantum Ultra Ceiling Cassette (CYT-24) systems

Suspend the Air Handler Unit for Quantum Ultra Ceiling Cassette (CYT-24) Systems

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Wire the Indoor Unit & Decorative Panel for Quantum Ultra Ceiling Cassette (CYT-24) Systems

Wrap the Lines & Seal the Air Gaps for Quantum Ultra Ceiling Cassette (CYT-24) Systems

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Drill the Piping Wall Hole for Quantum Ultra Floor-Ceiling Flex (UYT-24) Systems

Mount the Indoor Unit to the Ceiling for Quantum Ultra Floor-Ceiling Flex (UYT-24) Systems

Mount the Indoor Unit to the Floor for Quantum Ultra Floor-Ceiling Flex (UYT-24) Systems

Prepare the Refrigerant Piping of the Indoor Unit for Quantum Ultra Floor-Ceiling Flex (UYT-24) Systems

Select the Indoor Unit Installation Location for Quantum Ultra Floor-Ceiling Flex (UYT-24) Systems

Set Up the Indoor Unit Condensate Piping Connections for Quantum Ultra Floor-Ceiling Flex (UYT-24) Systems

Understand the Additional Leakage Sensor for Quantum Ultra Floor-Ceiling Flex (UYT-24) Systems

Wire the Indoor Unit to the Outdoor Unit for Quantum Floor-Ceiling Flex (UYT-24) Systems

Wrap the Lines & Seal the Air Gaps for Quantum Ultra Floor-Ceiling Flex (UYT-24) Systems

Flex Units

Connect the Drain Hose for Quantum Fresh (WYT-FA) Systems

Connect the Drain Hose for Wall-Mounted Systems

Connect the Fresh Air Pipe for Quantum Fresh (WYT-FA) Systems

Drill the Piping Wall Hole for Wall-Mounted Systems

Install the Indoor Unit Mounting Plate for Wall-Mounted Units

Prepare the Refrigerant Piping of the Indoor Unit for Wall-Mounted Systems

Select the Indoor Unit Installation Location for Quantum Fresh (WYT-FA) Systems

Select the Indoor Unit Installation Location for Wall-Mounted Systems

Understand the Additional Leakage Sensor for Wall-Mounted Systems

Wire the Indoor Unit for Wall-Mounted Systems

Wrap the Lines & Mount the Indoor Unit for Wall-Mounted Systems

Wall-Mounted Units

Indoor Units

Angle Linesets Upward

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Leakage Inspection & Vacuuming for Refrigerant Lines

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Open the Service Valve

Setup the Lineset to Exit from the Side of the Indoor Unit

Understand 6-Foot Plastic Whips & 4-Lead Mini Split Connection Wire

Understand how to Properly Uncoil the Lineset

Understand the Drilling Details to Accommodate Drain & Refrigerant Lines

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Understand the Torque Wrench Size for Installing Your System

Installation Requirements

Understand the Meaning of “Multi-Zone”

Multi-Zone Units

Air Evacuation & Bleeding the Circuit

Connect the Power/Signal Electrical Wiring to Outdoor Units

Connect the Refrigerant Piping to the Outdoor Unit

Mount the Outdoor Unit

Select the Installation Location for Outdoor Units

Select the Outdoor Unit Installation Location for Vertex Ducted Central Split (DYC-18) Systems

Set Up the Condensate Water Drainage for Outdoor Units

Understand how to Install Outdoor Units on Support Pads for Vertex Ducted Central Split (DYC-18) Systems

Outdoor Units

Create the Roof Opening

Install the Air Duct & Top Mounting Plate

Mount the Panel

Place the Unit onto the Roof

Setup the Electrical Wiring for RV Rooftop Systems

Setup the System Connections for RV Rooftop Systems

Understand the Installation Requirements for RV Rooftop Systems

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Installation & Setup

Turn the LED Display On or Off

Understand the Display Panel for RV Rooftop Systems

Understand the Display Board for Quantum Ultra Ducted Ceiling Concealed (RYT-24) Systems

Understand the Front Panel Displays for Quantum Ultra Ceiling Cassette (CYT-24) Systems

Understand the Front Panel Display for Quantum Ultra Floor-Ceiling Flex (UYT-24) Systems

Understand the Front Panel Display for Wall-Mounted Systems

Display Layouts

CL error code

Clean the Anti-Dust Filters for Diamante Essenza & Pro Systems

Clean the Anti-Dust Filters for Quantum Fresh Systems

Cleaning the Anti-Dust Filters for Quantum Ultra Ceiling Cassette Systems

Clean the Anti-Dust Filters for Quantum Ultra Ducted Ceiling Concealed Systems

Clean the Anti-Dust Filters for Quantum Ultra Floor-Ceiling Flex Systems

Clean the Anti-Dust Filters for Quantum Ultra High Wall-Mount & Hyperformance Systems

Clean the Filter Screen for RV Rooftop Systems

Filter Cleaning & CL Code

Activate Auto Mode

Activate the Child-Lock Function

Activate Cooling Mode

Activate Dry Mode

Activate Energy Saver (ECO) Mode

Activate Fan-Only Mode

Activate the Fresh Air Feature for Quantum Fresh Systems

Activate Gentle Wind Mode for Quantum Fresh Systems

Activate Heating Mode

Activate the I Feel Feature

Activate the Memory Feature

Activate Mute Mode

Activate the Self-Clean Feature

Activate Sleep Mode

Activate the Timer On/Timer Off Function

Activate Turbo Mode

Activate 46°F Freeze Protection

Understand the Auto-Restart Feature

Understand the Voice Control Feature For Quantum Fresh Systems

Functions & Modes for Diamante & Quantum Systems

Activate Dehumidification Mode

Activate Night Mode

Activate Ventilation Mode

Functions & Modes for RV Rooftop Systems

Activate the Accelerated Cooling/Heating Function

Understand the Anti-Cold Air Function

Understand the Compressor Crankshaft Heater Control Function

Understand the Heating Fan Delay Function

Understand the Indoor Coil Anti-Freezing Function

Understand the Passive Dehumidification Function

Understand the Refrigerant Leak Detection Function

Functions & Modes for Vertex Central Split Systems

Functions & Modes Explained

Determine the Breaker Size & Wire Needed for Your System

Diagnose & Prevent Crossed Wiring in Multi-Zone Systems

Understand how the System Receives Power

Understand if Restarting Your Unit Manually is Required After the Power Goes Out

Electrical Related Queries

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