This article explains the layouts for the DIP switches of the Vertex Ducted Central Split 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 Systems

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Turn the LED Display On or Off

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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 High-Wall Systems

Activate Gentle Wind Mode for Quantum Fresh High-Wall Systems

Activate Heating Mode

Activate the I Feel Feature

Activate the Memory Feature

Activate Mute Mode

Activate the Self-Clean Feature

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Activate 46°F Freeze Protection

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Understand the Defrost Function

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Activate Dehumidification Mode

Activate Night Mode

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Activate the Accelerated Cooling/Heating Function

Understand the Anti-Cold Air Function

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