This article explains how to complete the air evacuation and bleed the circuit for wall-mounted systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains how to complete the air evacuation and bleed the circuit for wall-mounted systems.&#xA0;</p><p>The air and/or humidity left inside the refrigeration circuit can contaminate the refrigerant and cause abnormal spikes in pressure, leading to eventual compressor malfunctions. Therefore, after connecting the indoor and outdoor units to create a closed system, it is necessary to bleed the air and humidity out of the circuit by using a vacuum pump.&#xA0;</p><p>Perform the evacuation after the initial installation or when the unit is relocated. For first time installations, do not prematurely release the refrigerant prior to evacuation. Keep the valve caps sealed.&#xA0;</p><p id="isPasted">This article is for the following systems:&#xA0;</p><ul><li>Diamante Essenza (WYT-17)</li><li>Diamante Pro (WYT-20)</li><li>Quantum Ultra (WYT-24)</li><li>Quantum Hyperformance (WYT-25)</li><li>Quantum Fresh (WYT-FA)</li></ul><h2 id="before-performing-the-evacuation"><u>Before Performing the Evacuation</u></h2><p>Check to make sure that both the high-pressure and low-pressure pipes between the indoor and outdoor units are connected properly.&#xA0;</p><p>Check to make sure all wiring is connected properly and is fully enclosed and insulated.&#xA0;</p><h2 id="steps"><u>Steps</u></h2><p>Follow these steps to complete the air evacuation and bleed the circuit:&#xA0;</p><ol><li>Remove the caps from the 2-way and 3-way valves. Do not manipulate the valves until step 11.&#xA0;</li><li>Unscrew and remove the cap from the service port.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120415-c724d09c-2414-4007-8f04-65804fd82340-wyt17_air_evacuation_step1&amp;2.png" style="width: 400px;" class="fr-fic fr-dib fr-bordered"></li><li>Connect the blue (low) hose of the manifold gauge to the service port on the outdoor unit&apos;s 3-way valve. Use an adapter if needed. Ensure that the pin fully engages the Schrader valve.&#xA0;</li><li>Connect the yellow (middle) hose from the manifold gauge to the vacuum pump.&#xA0;</li><li>Open the low pressure valve of the manifold gauge. Keep the high pressure valve closed.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120415-c3c3a9ba-d373-409f-8557-e67d484d1b81-wyt17_air_evacuation_steps3-5.png" style="width: 400px;" class="fr-fic fr-dib fr-bordered"></li><li>&#xA0;Turn on the vacuum pump to evacuate the system.&#xA0;</li><li>Run the vacuum for at least 15 minutes or until the compound meters reads -76cmHG (-100kPa or -30 inHg). The vacuum reading should gradually decrease.&#xA0;</li><li>Close the low pressure side of the manifold gauge and turn off the vacuum pump.&#xA0;</li><li>For the best results, wait for at least 1 hour, then verify that there has been no increase in the vacuum reading.&#xA0;</li><li>If there is no change in the vacuum reading, unscrew the cap from the service valve (high pressure valve). <strong>Note:</strong> If there is a rise in the system vacuum, refer to this Gas Leak Check article.&#xA0;</li><li>Insert the Allen wrench into the service valve (2-way valve) and open the valve by turning the wrench in a 1/4 counterclockwise turn. Wait and listen for gas potentially exiting the system, then close the valve after 5 seconds.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120415-3571cbda-89b1-484a-b2f9-ea0a2c718c8c-wyt17_air_evacuation_steps11.png" style="width: 400px;" class="fr-fic fr-dib fr-bordered"><ul><li><strong>Notes:&#xA0;</strong><ul><li>When opening valve stems, turn the supplied Allen wrench until the valve stem comes into contact with the stopper. Do not try to force the valve to open further.</li><li>Do not open either of these valves until evacuation steps are completed and the system is ready for startup.&#xA0;</li></ul></li></ul></li><li>Watch the pressure gauge for a few minutes to make sure that there is no drop in pressure. The pressure gauge should now show higher than the atmospheric pressure.&#xA0;</li><li>Remove the charge hose from the service port.</li><li>Use a hexagonal wrench to fully open both the high pressure and low pressure valves counterclockwise.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120415-25e50631-8526-4323-a1c6-7d1eac456d3a-wyt17_air_evacuation_step14.png" style="width: 400px;" class="fr-fic fr-dib fr-bordered"></li><li>Tighten valve caps on all three valves (service port, high pressure, low pressure) by hand. Tighten further using a torque wrench if needed.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120415-1e70c1c7-b2fa-42ef-a1f7-e97088c0a10e-wyt17_air_evacuation_step15.png" style="width: 400px;" class="fr-fic fr-dib fr-bordered"></li></ol>

Air Evacuation and Bleeding the Circuit for Wall-Mounted Systems

This article explains how to connect the drain hose for wall-mounted systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains how to connect the drain hose for wall-mounted systems.&#xA0;</p><p>The indoor unit has two drain connections on the left and right sides. Either one can be utilized. One side will have a hose connected, while the other is plugged.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120121-df92823e-eb3a-4948-8b88-82c378fc6024-wyt17_drain_hose_ports.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></p><p>By default, the drain hose is attached to the left-hand side of the unit (left when facing the back of the unit).&#xA0;</p><p id="isPasted">This article is for the following systems:&#xA0;</p><ul><li>Diamante Essenza (WYT-17)</li><li>Diamante Pro (WYT-20)</li><li>Quantum Ultra (WYT-24)</li><li>Quantum Hyperformance (WYT-25)</li><li>Quantum Fresh (WYT-FA)</li></ul><h2 id="steps"><u>Steps</u></h2><p>Follow these steps to connect the drain hose for wall-mounted systems:&#xA0;</p><ol><li>Attach the drain hose on the same side that the refrigerant piping exits the unit from, ensuring proper drainage.&#xA0;</li><li>Attach any drain hose extensions (sold separately) to the end of the drain hose.&#xA0;</li><li>Wrap the connection point of the drain hose firmly with Teflon tape to create a good seal and prevent leaks.&#xA0;</li><li>For the portion of the drain hose that will remain indoors, wrap it with foam pipe insulation to prevent condensation.&#xA0;</li><li>Remove the air filter and pour a small amount of water into the drain pan to make sure that water flows away from the unit smoothly.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120121-10f7c2db-a692-40ec-ba92-9d4680569c72-wyt17_drain_hose_yes.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120121-a96f3708-56df-4da6-a2e9-771fc09a8a89-wyt17_drain_hose_no.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li></ol><h2 id="notes"><u>Notes</u></h2><ul><li>Do not kink the drain hose.&#xA0;</li><li>Do not create a water trap (siphon).&#xA0;</li><li>Do not put the end of the drain hose in water or in a container that will collect water.&#xA0;</li></ul>

Connect the Drain Hose for Wall-Mounted Systems

This article explains how to connect the fresh air pipe for the Quantum Fresh system.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains how to connect the fresh air pipe for the Quantum Fresh system.&#xA0;</p><h2 id="connect-the-fresh-air-pipe"><u>Connect the Fresh Air Pipe</u></h2><p>Screw the fresh air duct onto the rear of the indoor unit.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120218-d2ae2763-e730-44f2-a88c-e140c876aa01-wytfa_connect_fresh_air_pipe.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></p><p>Route the fresh air duct together with the other components of the service bundle (refrigerant piping, signal wire, and drain tubing).&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120218-615be1db-1dd6-4d34-86f7-38e28111ddab-wytfa_connect_fresh_air_pipe_bundle.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></p>

Connect the Fresh Air Pipe for Quantum Fresh Systems

This article explains how to connect the power/signal electrical wiring to the outdoor unit for wall-mounted systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains how to connect the power/signal electrical wiring to the outdoor unit for wall-mounted systems.&#xA0;</p><p>A comprehensive wiring diagram is printed on the inside of the wiring cover.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120320-fee6f847-17b7-41fa-a74f-706d9fa0a44d-wyt17_odu_electrical_wiring.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></p><p>This article is for the following articles:</p><ul id="isPasted"><li>Diamante Essenza (WYT-17)</li><li>Diamante Pro (WYT-20)</li><li>Quantum Ultra High-Wall (WYT-24)</li><li>Quantum Hyperformance (WYT-25)</li><li>Quantum Fresh (WYT-FA)</li></ul><h2 id="isPasted"><u>Connect the Signal Cable</u></h2><p>The indoor and outdoor units each have three terminals (1, 2, 3) and ground wiring (G). Match the terminals number to number. Color selection does not matter as much as matching number to number does.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120218-43815c26-9bed-46ff-aead-29633f2eeab1-wytfa_connect_signal_cable.png" style="width: 300px;" class="fr-fic fr-bordered fr-dib"></p><p>Do not mix up the wires between each ends. &#xA0;</p><p>Consult the diagrams affixed to the indoor and outdoor units respectively for specific wiring instructions.&#xA0;</p><h2 id="steps"><u>Steps</u></h2><p>Follow these steps to connect the power/signal electrical wiring to the outdoor unit:</p><ol><li>Unscrew and remove the handle on the right side plate of the outdoor unit.&#xA0;</li><li>Wire the system using the appropriate gauge wire and the wiring diagram found on the handle cover. For information on the appropriate gauge wire to use, click <a href="https://help.pioneerminisplit.com/en-US/articles/cable-wire-specifications-352513" target="_blank" rel="noopener noreferrer">here</a>.&#xA0;</li><li>Use a proper flexible rain-tight conduit with appropriate size connectors.&#xA0;</li><li>Fasten the power connection wires into place using the supplied wire clamps.&#xA0;</li><li>Check the wiring against the diagram to ensure it is wired correctly. A proper ground connection must be established.&#xA0;</li><li>Rescrew and reinstall the cover handle.&#xA0;</li></ol>

Connect the Power/Signal Electrical Wiring for Wall-Mounted Systems

This article explains how to connect the refrigerant piping to the indoor unit for wall-mounted systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains how to connect the refrigerant piping to the indoor unit for wall-mounted systems.&#xA0;</p><p>For information on preparing the refrigerant piping, click <a href="https://help.pioneerminisplit.com/en-US/wall-mounted-systems-prepare-refrigerant-piping-idu-3624238" target="_blank" rel="noopener noreferrer">here</a>.&#xA0;</p><p id="isPasted">This article is for the following systems:&#xA0;</p><ul><li>Diamante Essenza (WYT-17)</li><li>Diamante Pro (WYT-20)</li><li>Quantum Ultra (WYT-24)</li><li>Quantum Hyperformance (WYT-25)</li><li>Quantum Fresh (WYT-FA)</li></ul><h2 id="steps"><u>Steps</u></h2><p>Follow these steps to connect the refrigerant piping to the indoor unit:&#xA0;</p><ol><li>Bring the ends of both the copper line and the indoor unit line together. Align the centers of the pipes that will be connected.&#xA0;</li><li>Remove the indoor unit piping cap and check that no debris is inside. Some gas may be heard escaping, but it is dry nitrogen keeping the lines clean.&#xA0;</li><li>Use any leak guard and/or flare sealers on the flares of the piping.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120121-5bc63465-9834-475f-bb23-4022b918061b-wyt17_connect_refrigerant_piping_idu_leak_guard.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>Attach the flare nut and tighten as much as possible by hand.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120121-204b8ed5-e815-4959-a3a0-74df9a2d8c47-wyt17_connect_refrigerant_piping_hand_tighten.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>Use two wrenches to torque correctly to the specifications found in the table below.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120121-44bc1f73-4a86-4f7f-934a-d95216d830e5-wyt17_connect_refrigerant_piping_torque_wrench.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>Repeat this process for the other copper line.&#xA0;</li></ol><h2 id="tightening-torque-for-protection-caps-and-flange-connection"><u>Tightening Torque for Protection Caps and Flange Connection</u></h2><table style="width: 100%;"><thead><tr><th><div style="text-align: center;">Pipe Diameter</div></th><th style="text-align: center;">Tightening Torque<br>[N x m]</th><th style="text-align: center;">Tightening Torque<br>[ft-lbf]</th><th style="text-align: center;">Corresponding Stress<br>(Using a 20 cm wrench)</th></tr></thead><tbody><tr><td style="width: 25.0000%;"><div style="text-align: center;">&#x3A6; 1/4&quot; (6.35 mm)</div></td><td style="width: 25%; text-align: center;">15-20</td><td style="width: 25%; text-align: center;">11-15</td><td style="width: 25%; text-align: center;">Wrist strength</td></tr><tr><td style="width: 25%; text-align: center;">&#x3A6; 3/8&quot; (9.52 mm)</td><td style="width: 25%; text-align: center;">31-35</td><td style="width: 25%; text-align: center;">23-26</td><td style="width: 25%; text-align: center;">Arm strength</td></tr><tr><td style="width: 25%; text-align: center;">&#x3A6; 1/2&quot; (12 mm)</td><td style="width: 25%; text-align: center;">45-50</td><td style="width: 25%; text-align: center;">33-37</td><td style="width: 25%; text-align: center;">Arm strength</td></tr><tr><td style="width: 25%; text-align: center;">&#x3A6; 5/8&quot; (15.88 mm)</td><td style="width: 25%; text-align: center;">60-65</td><td style="width: 25%; text-align: center;">44-48</td><td style="width: 25%; text-align: center;">Arm strength</td></tr></tbody></table><p><br></p><table style="width: 58%; margin-right: calc(42%);"><thead><tr><th colspan="2" style="width: 100%;"><div style="text-align: center;">Tightening Torque [N x m] (ft-lbf)</div></th></tr></thead><tbody><tr><td style="width: 50%; text-align: center;">Service Port Nut</td><td style="width: 50%; text-align: center;">[7-9] (5-7)</td></tr><tr><td style="width: 50%; text-align: center;">Protection Caps</td><td style="width: 50%; text-align: center;">[25-30] (18-22)</td></tr></tbody></table>

Connect the Refrigerant Piping to the Indoor Unit for Wall-Mounted Systems

This article explains how to connect the refrigerant piping to the outdoor unit for wall-mounted systems.

Connect the Refrigerant Piping to the Outdoor Unit for Wall-Mounted Systems

This article explains how to drill the piping wall hole for wall-mounted systems.

<h2 id="isPasted"><u>Introduction</u></h2><p>This article explains how to drill the piping wall hole for wall-mounted systems.&#xA0;</p><p>This article is for the following systems:&#xA0;</p><ul><li>Diamante Essenza (WYT-17)</li><li>Diamante Pro (WYT-20)</li><li>Quantum Ultra (WYT-24)</li><li>Quantum Hyperformance (WYT-25)</li><li>Quantum Fresh (WYT-FA)</li></ul><h2 id="isPasted"><u>Steps</u></h2><p>Follow these steps to drill the wall hole for piping:&#xA0;</p><ol><li>With the mounting plate firmly affixed to the wall, temporarily mount the indoor unit onto the mounting plate in order to confirm the location of the wall hole in the next steps. <strong>Note:</strong> For information on installing the mounting plate for wall-mounted units, click <a href="https://help.pioneerminisplit.com/en-US/wall-mounted-units-install-mounting-plate-3623495" target="_blank" rel="noopener noreferrer">here</a>.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120120-b3701b53-fc64-497f-b636-30bdd8689e85-wyt17_drill_wall_hole_piping.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>Use a pencil to lightly trace the bottom corner of the indoor unit, depending on which side exit the piping will go through.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120120-d74f71a2-9084-4df5-8225-cbf0f749f1c8-wyt17_drill_wall_hole_piping_2.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>Take the inside unit off of the plate and make a mark of where the hole will be, ensuring ample clearance between the tracing and bracket.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120120-8a97f46e-007f-4cd5-b25c-eff5a6f258ab-wyt17_drill_wall_hole_piping_3.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>Drill a 2-&#xBD;-3-&#x215B; inch (63.5-79 mm) wall hole at a slight downward angle using a core drill. Be careful to avoid wires, plumbing, and other sensitive materials. The bottom of the inside hole should be &#xBC; inch (6.35 mm) above the bottom of the outside hole. &#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120120-2407bdf9-877d-41fc-b7a1-4cf8ee15026c-wyt17_drill_wall_hole_piping_4.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li></ol><h2 id="guidelines-for-drilling-the-wall-holes"><u>Guidelines for Drilling the Wall Holes</u></h2><p>Below are the suggested locations for the wall holes. Each system has different guidelines.&#xA0;</p><p>Both the left side and right side exits are considered with a 2-&#xBD; inch (63.5 mm) hole. Confirm the holes are proper by corner tracing.&#xA0;</p><p><strong><u>Diamante Essenza (WYT-17)</u></strong></p><p><strong>12,000 BTU Systems</strong><strong><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120421-c20698df-3f15-4055-a492-f7776824c590-wyt17_drilling_wall_holes_12k.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></strong></p><p><strong>18,000 BTU Systems</strong><strong><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120421-82cefea2-4b3a-4cc5-a97e-ccd81714e881-wyt17_drilling_wall_holes_18k.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></strong></p><p><strong>24,000 BTU Systems</strong><strong><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120421-c31dd961-0ae1-4005-861e-66ac35790158-wyt17_drilling_wall_holes_24k.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></strong></p><p><strong>36,000 BTU Systems</strong><strong><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120421-060a9061-d2da-4425-a349-04b5edf7dd14-wyt17_drilling_wall_holes_36k.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></strong></p><p><strong><u>Diamante Pro (WYT-20)</u></strong></p><p><strong>9,000 &amp; 12,000 BTU Systems</strong><strong><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120421-f7460875-1423-41af-a711-690c4942ffa3-wyt20_drill_wall_holes_9_12k.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></strong></p><p><strong>18,000 BTU Systems<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120421-70ba837c-dc1d-4ad3-9ade-ac93a2b34467-wyt20_drill_wall_holes_18k.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></strong></p><p><strong>24,000, 30,000, &amp; 36,000 BTU Systems</strong><strong><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120421-d0fd0714-db9b-4d8f-a624-d3e96d19ae28-wyt20_drill_wall_holes_24_30_36k.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></strong></p><p><strong><u>Quantum Ultra High-Wall (WYT-24)</u></strong></p><p><strong>9,000 BTU</strong><strong><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120513-c65f0786-26dd-42e5-98b8-ffc3fa592528-wyt24_drill_wall_holes_9k.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></strong><strong>12,000 BTU</strong><strong><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120513-ed8f59d5-6707-49d8-b8d6-7fdae9acd7dd-wyt24_drill_wall_holes_12k.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></strong></p><p><strong>18,000 &amp; 24,000 BTU</strong><strong><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120513-a5ceb128-9d71-42e0-a2b4-628c812e9be1-wyt24_drill_wall_holes_18_24k.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></strong><strong><u>Quantum Hyperformance (WYT-25)</u></strong></p><p><strong><strong id="isPasted">9,000 BTU</strong></strong><strong><strong id="isPasted"><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120513-12ee44fa-3ceb-4127-9f81-964b8456ef8e-wyt25_drill_wall_holes_9k.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></strong></strong><strong><strong id="isPasted"><strong id="isPasted">12,000 BTU</strong></strong></strong><strong><strong id="isPasted"><strong id="isPasted"><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120513-58b016de-a84a-4a6d-9e4a-90f44ea30640-wyt25_drill_wall_holes_12k.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></strong></strong></strong><strong><strong id="isPasted"><strong id="isPasted"><strong id="isPasted">18,000 &amp; 24,000 BTU</strong></strong></strong></strong><strong><strong id="isPasted"><strong id="isPasted"><strong id="isPasted"><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120513-4c37d148-8f17-419b-b932-3b49c25263c3-wyt25_drill_wall_holes_18_24k.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></strong></strong></strong></strong><strong><u>Quantum Fresh (WYT-FA)</u></strong><strong><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120513-774e0f97-3b97-433e-89b0-0cba25b4d183-wytfa_drill_wall_holes.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></strong><br></p>

Drill the Piping Wall Hole for Wall-Mounted Systems

This article explains how to install the indoor unit mounting plate for wall-mounted systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains how to install the indoor unit mounting plate for wall-mounted systems.&#xA0;</p><p>The actual appearance of the mounting plate may differ slightly, but the process is similar.&#xA0;</p><p>This article is for the following systems:&#xA0;</p><ul><li>Diamante Essenza (WYT-17)</li><li>Diamante Pro (WYT-20)</li><li>Quantum Ultra (WYT-24)</li><li>Quantum Hyperformance (WYT-25)</li><li>Quantum Fresh (WYT-FA)</li></ul><h2 id="steps"><u>Steps</u></h2><p>Follow these steps to install the indoor unit mounting plate:&#xA0;</p><ol><li>Dislodge the mounting plate from the rear of the indoor unit and place the mounting plate against the wall where the system will hang. Use a level to ensure that the plate is horizontally and vertically level.&#xA0;</li><li>Drill 1-&#xBC; inch (32 mm) deep holes for each screw to enter. The locations are flexible but should be spaced well.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120120-fbe1895f-2d60-4576-8829-b7d017fb6ccd-wyt17_install_mounting_plate.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>Insert the plastic anchors into each other the holes.&#xA0;</li><li>Fix the mounting plate to the wall by using the included tapping screws. Check that it is secured.&#xA0;</li></ol>

Install the Indoor Unit Mounting Plate for Wall-Mounted Units

This article explains how to mount the indoor unit for wall-mounted systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains how to mount the indoor unit for wall-mounted systems.&#xA0;</p><p>This article is for the following systems:&#xA0;</p><ul><li>Diamante Essenza (WYT-17)</li><li>Diamante Pro (WYT-20)</li><li>Quantum Ultra High-Wall (WYT-24)</li><li>Quantum Hyperformance (WYT-25)</li><li>Quantum Fresh (WYT-FA)</li></ul><p>For information on selecting the indoor unit installation location, click <a href="https://help.pioneerminisplit.com/en-US/wall-mounted-systems-select-idu-installation-location-3632154" target="_blank" rel="noopener noreferrer" id="isPasted">here</a>.&#xA0;</p><p>Learn how to install the indoor unit mounting plate for wall-mounted systems by clicking <a href="https://help.pioneerminisplit.com/en-US/wall-mounted-units-install-idu-mounting-plate-3623495" target="_blank" rel="noopener noreferrer">here</a>.&#xA0;</p><h2 id="steps"><u>Steps</u></h2><p>Follow these steps to mount the indoor unit:&#xA0;</p><ol><li>Arrange the pipes, cables, and drain hose correctly.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120221-c6bc8840-6196-4146-b64e-d1443c96508d-wyt17_mount_bound.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>Lag the pipe joints with insulation material and secure them with vinyl tape.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120221-794720fa-707f-4f49-a5df-98cec12a09f7-wyt17_mount_vinyl_tape.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>Run the bound bundle through the wall hole and mount the indoor unit securely onto the mounting plate. Press/push the lower part of the indoor unit so it clicks onto the mounting plate.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120221-eeb0fa5a-22bf-44e7-a151-bbbd0ebad374-wyt17_mount_plate.png" style="width: 400px;" class="fr-fic fr-dib fr-bordered"></li></ol>

Mount the Indoor Unit for Wall-Mounted Systems

This article explains how to mount the outdoor unit for wall-mounted systems.

Mount the Outdoor Unit for Wall-Mounted Systems

This article explains how to prepare the refrigerant piping of the indoor unit for wall-mounted systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains how to prepare the refrigerant piping of the indoor unit for wall-mounted systems.&#xA0;</p><p>The piping &quot;pigtails&quot; pre-attached to the indoor unit can be run in three different methods. Decide which type of configuration is most suitable before continuing.&#xA0;</p><p id="isPasted">This article is for the following systems:&#xA0;</p><ul><li>Diamante Essenza (WYT-17)</li><li>Diamante Pro (WYT-20)</li><li>Quantum Ultra (WYT-24)</li><li>Quantum Hyperformance (WYT-25)</li><li>Quantum Fresh (WYT-FA)</li></ul><h2 id="configuration-options"><u>Configuration Options</u><u><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120121-644e7c36-1c86-4a75-960e-ac5708584c66-wyt17_refrigerant_piping_connection_options.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></u></h2><p>Option 1: By default, the refrigerant piping is routed for a left side exit. This method can either use the left side knockout for a side exit or a wall hole can be drilled on the left side of the unit&apos;s rear.&#xA0;</p><p>Option 2: Routing the refrigerant piping straight through the back of the system will facilitate the connections to the copper pipe extensions intended to be made outside. This is recommended to simplify the process.&#xA0;</p><p>Option 3: This method is a right side exit, but is not recommended as it involves a 180&#xB0; bend of the piping. This increases the risk of kinking or collapsing the lines dramatically. Bend the piping slowly and cautiously.&#xA0;</p><h2 id="notes"><u>Notes</u>&#xA0;</h2><ul><li>If a side-exit is chosen, there are knock-out panels on either side of the unit that can be cut along the groove to provide a notch for the pipe to exit from. Use a suitable cutter to do this.&#xA0;</li><li>Run the piping in the direction of the wall hole.&#xA0;</li><li>Bind the copper pipes, drain pipe, and power cables together with tape. Ensure that the bundle is exiting at a continuous downward pitch.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120121-8387eb02-53d7-42d1-a175-2fc9083a4c08-wyt17_refrigerant_piping_connection_options_downward_inclination.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>Keep the drain hose at the bottom so that the water can flow freely.&#xA0;</li><li>Do not remove the seal caps from the pipe ends until it is time to connect it, avoiding contaminants from entering.&#xA0;</li><li>If the pipe is bent/pulled too often, it will become still. Don&apos;t bend the pipe more than three times at one point. Be careful not to kink any piping.&#xA0;</li><li>When extending the coiled copper pipes, straighten them by unwinding gently.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120121-e47ae950-6523-46e0-9d90-86bfc9ebe7f9-wyt17_refrigerant_piping_connection_options_unwind_coil.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li></ul>

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

This article explains how to select the indoor unit installation location for Quantum Fresh (WYT-FA) systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains how to select the indoor unit installation location for Quantum Fresh (WYT-FA) systems.&#xA0;</p><h2 id="select-the-location"><u>Select the Location</u></h2><p>Follow the tolerances depicted in the illustration below:&#xA0;</p><p><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120214-db01a7ab-f128-4cd9-afad-d63df4514469-wytfa_installation_location.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></p><p>Due to the fresh air + gentle wind mechanism, the model is designed without fingerguards. For safety reasons, the indoor unit&apos;s louver must be located at a safe height of 98 inches or more above the floor. If the system is installed at a shorter height, any injury incurred from sticking fingers into the airflow louver is the responsibility of the installer or user.&#xA0;</p><p id="isPasted">Follow these best practices for selecting an optimal space for installing the indoor unit:&#xA0;</p><ul><li>Do not install the unit on a wall that is subject to vibrations.&#xA0;</li><li>Do not install the system near sources of heat, steam, of flammable gases.&#xA0;</li><li>Do not install the indoor unit in a location that is exposed to direct sunlight.&#xA0;</li><li>Ensure that the inlet and outlet vents are not obstructed. The system should be able to output air all across the room.&#xA0;</li><li>Minimize the distance between the indoor and outdoor units. Install the unit in a location where connecting the indoor and outdoor units will be as simple as possible.&#xA0;</li><li>Install the unit on a strong wall and where it is easy to drain the condensate water.&#xA0;</li><li>Install the unit in a location where it be easy to service the product and perform any necessary maintenance.&#xA0;</li></ul>

Select the Indoor Unit Installation Location for Quantum Fresh Systems

This article explains how to select the indoor unit installation location for Quantum Ultra Floor-Ceiling Flex systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains how to select the indoor unit installation location for Quantum Ultra Floor-Ceiling Flex (UYT-24) systems.&#xA0;</p><h2 id="select-the-location"><u>Select the Location</u></h2><p>Follow the tolerances depicted in the illustration below:&#xA0;</p><p><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120215-0ea5fa82-775c-42e0-81c8-48f9832669ab-uyt24_indoor_unit_installation_location.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></p><p id="isPasted">Position the air handler in the center of the area intended to be air conditioned, ensuring the best air distribution.&#xA0;</p><p>Follow these site selection guidelines when installing the indoor unit to prevent malfunction, damage, or hazardous conditions:</p><p><strong>Do Not:&#xA0;</strong></p><ul><li>Install the unit in areas where flammable gases may accumulate (e.g., fuel storage areas, chemical plants).&#xA0;</li><li>Install the system in coastal or seaside locations with salty air exposure (unless the system is specifically treated for corrosion resistance).&#xA0;</li><li>Install the unit in environments containing caustic gases such as sulfur compounds near hot springs or industrial zones.&#xA0;</li><li>Mount the unit on surfaces that cannot support its full operational weight such as weak ceilings or unstable walls.&#xA0;</li><li>Install the unit in kitchens or areas heavily exposed to oil fumes, vapors, or grease accumulation.&#xA0;</li><li>Install the unit in areas subject to strong electromagnetic interference such as near factories, radio transmitters, and heavy-duty electrical equipment.&#xA0;</li><li>Install the unit near sources or acidic or alkaline vapors, including industrial cleaners or chemical discharge zones.&#xA0;</li><li>Install the system in tightly enclosed spaces with inadequate ventilation, which may restrict airflow and service access.&#xA0;</li><li>Install the system in high-humidity spaces such as laundry rooms or bathrooms without sufficient moisture control.&#xA0;</li><li>Neglect proper electrical insulation for the air conditioner-building wiring. Installation must comply with national electrical safety standards.&#xA0;</li></ul><p><strong>Do:</strong></p><ul><li>Select a location protected from direct sunlight to prevent heat buildup and maintain cooling performance.&#xA0;</li><li>Verify that the structural ceiling or wall can support the unit&apos;s weight under full operational load.&#xA0;</li><li>Choose an installation site with a short, direct path for the condensation drain, complying with local building codes.</li><li>Allow adequate clearance around the unit to facilitate proper airflow, operation, and maintenance access.&#xA0;</li><li>Position the unit more than 3 feet (1 m) away from antennas, power lines, telephones, security systems, and other sources of electrical/radio interference.&#xA0;</li><li>Educate the user on proper operation and maintenance procedures, including filter cleaning, basic troubleshooting, and using the provided user manual.&#xA0;</li></ul>

Select the Indoor Unit Installation Location for Quantum Ultra Floor-Ceiling Flex Systems

This article explains how to select the indoor unit installation location for wall-mounted systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains how to select the indoor unit installation location for wall-mounted systems.&#xA0;</p><p>This article is for the following systems:&#xA0;</p><ul><li>Diamante Essenza (WYT-17)</li><li>Diamante Pro (WYT-20)</li><li>Quantum Ultra High-Wall (WYT-24)</li><li>Quantum Hyperformance (WYT-25)</li></ul><p>For information on selecting the indoor unit installation location for Quantum Fresh (WYT-FA) systems, click <a href="https://help.pioneerminisplit.com/en-US/quantum-fresh-select-idu-installation-location-3632995" target="_blank" rel="noopener noreferrer">here</a>.&#xA0;</p><p>Learn how to mount the indoor unit by clicking <a href="https://help.pioneerminisplit.com/en-US/wall-mounted-systems-mount-idu-3639742" target="_blank" rel="noopener noreferrer">here</a>.&#xA0;</p><h2 id="select-the-location"><u>Select the Location</u></h2><p>Follow the tolerances depicted in the illustration below:&#xA0;</p><h2 id><u><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120214-22c25a21-6391-4819-a2b7-de1ebb0c14d5-wyt17_installation_location.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></u></h2><p>Follow these best practices for selecting an optimal space for installing the indoor unit:</p><ul><li>Do not install the unit on a wall that is subject to vibrations.&#xA0;</li><li>Do not install the system near sources of heat, steam, of flammable gases.&#xA0;</li><li>Do not install the indoor unit in a location that is exposed to direct sunlight.&#xA0;</li><li>Ensure that the inlet and outlet vents are not obstructed. The system should be able to output air all across the room.&#xA0;</li><li>Minimize the distance between the indoor and outdoor units. Install the unit in a location where connecting the indoor and outdoor units will be as simple as possible.&#xA0;</li><li>Install the unit on a strong wall and where it is easy to drain the condensate water.&#xA0;</li><li>Install the unit in a location where it be easy to service the product and perform any necessary maintenance.&#xA0;</li></ul>

Select the Indoor Unit Installation Location for Wall-Mounted Systems

This article explains how to select the outdoor unit installation location for wall-mounted systems.

<h2 id="isPasted"><u>Introduction</u></h2><p>This article explains how to select the outdoor unit installation location for wall-mounted systems.&#xA0;</p><p>This article is for the following systems:&#xA0;</p><ul><li>Diamante Essenza (WYT-17)</li><li>Diamante Pro (WYT-20)</li><li>Quantum Ultra High-Wall (WYT-24)</li><li>Quantum Hyperformance (WYT-25)</li><li>Quantum Fresh (WYT-FA)</li></ul><p>For information on mounting the outdoor unit for wall-mounted systems, click <a href="https://help.pioneerminisplit.com/en-US/wall-mounted-systems-mount-odu-3659469" target="_blank" rel="noopener noreferrer">here</a>.&#xA0;</p><h2 id="select-the-location"><u>Select the Location</u></h2><p>Follow the tolerances depicted in the illustration below:&#xA0;</p><p><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120319-1859db3e-5ecd-48e9-8bdd-faf41444ae78-wyt17_odu_installation_requirements.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></p><p>Follow these best practices for selecting an optimal space for installing the outdoor unit:&#xA0;</p><ul><li>Do not install the unit near sources of heat, steam, or flammable gases.&#xA0;</li><li>Do not install the system in areas prone to extreme winds or dust.&#xA0;</li><li>Do not install the outdoor unit in an area that has many individuals pass by.&#xA0;</li><li>Select a location where the air discharge and operating sound level will not disturb others.&#xA0;</li><li>Install the system in a shaded area or utilize a cover/sun protection that will not interfere with air flow. This will also protect the system from heavy rain or snow.&#xA0;</li><li>Install the unit in a safe and sturdy location.&#xA0;</li><li>Install rubber vibration absorbers if the system can induce vibrations in any structure.&#xA0;</li><li><strong>If the unit is exposed to heavy win</strong><strong>d:&#xA0;</strong>Install the unit so that the air outlet fan is at a 90&#xB0; angle to the direction of the wind. If needed, use wind baffles or build a barrier in front of, but sufficiently away from, the unit to protect it from extremely heavy winds.&#xA0;</li><li><strong>If the unit is frequently exposed to heavy rain or snow:&#xA0;</strong>Build a shelter above the unit to protect it from the rain or snow. Be careful not to obstruct the air flow around the unit.&#xA0;</li><li><strong>If the unit is frequently exposed to salty air (seaside air):</strong> Use specifically approved anti-corrosion coating sprays on the heat exchanger surface in order to resist corrosion.&#xA0;</li></ul>

Select the Outdoor Unit Installation Location for Wall-Mounted Systems

This article explains how to set up the outdoor unit condensate water drainage for wall-mounted systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains how to set up the outdoor unit condensate water drainage for wall-mounted systems.&#xA0;</p><p>Use the drain joint and drain pipe included with the system to direct away the condensate water and ice formed in the outdoor unit during Heating mode.&#xA0;</p><p>This is optional and only needed if the default configuration of the water drainage out from the port on the bottom side is not desired.&#xA0;</p><p id="isPasted">This article is for the following systems:&#xA0;</p><ul><li>Diamante Essenza (WYT-17)</li><li>Diamante Pro (WYT-20)</li><li>Quantum Ultra (WYT-24)</li><li>Quantum Hyperformance (WYT-25)</li><li>Quantum Fresh (WYT-FA)</li></ul><h2 id="steps"><u>Steps</u></h2><p>Follow these steps to set up the outdoor unit condensate water drainage:&#xA0;</p><ol><li>Fasten the drain port in the 1 inch (25 mm) port located in the part of the unit shown in the illustration.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120320-a02905f0-7848-4a41-a7af-367f6bc7c51b-wyt17_odu_condensate_water_drainage.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>Connect the drain port and drain pipe.&#xA0;</li><li>Ensure the condensate will drain to a suitable place.&#xA0;</li></ol>

Set Up the Outdoor Unit Condensate Water Drainage for Wall-Mounted Systems

This article explains the additional leakage sensor for wall-mounted systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains the additional leakage sensor for wall-mounted systems.&#xA0;</p><p>The auxiliary refrigerant leak sensor monitors the system operation. If refrigerant concentration exceeds the alarm threshold, the system will stop the compressor and start the circulation fan for safety.&#xA0;</p><p>The refrigerant leak sensor is equipped to systems for safety.</p><p>The following wall-mounted systems have the additional leakage sensor:&#xA0;</p><ul><li>Quantum Ultra High-Wall (WYT-24)</li><li>Quantum Hyperformance (WYT-25)</li></ul><h2 id="location-of-the-leakage-sensor"><u>Location of the Leakage Sensor</u></h2><p><strong>Note:&#xA0;</strong>The actual location may vary depending on the model and cabinet design.&#xA0;</p><p><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120516-ebfb0da7-89ad-4491-bbd7-9765db8cfefe-wyt24_additional_leakage_sensor.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></p><h2 id="alternative-control-board-wiring-diagram"><u>Alternative Control Board Wiring Diagram</u></h2><p>If the indoor unit is configured with a refrigerant leakage detection sensor from the factory or will be configured for one later, follow the alternative control board wiring diagram below:&#xA0;</p><p><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120516-23c81367-e8ec-4407-a9d8-011ead26a33a-wyt24_additional_leakage_sensor_control_board_wiring_diagram.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></p><h2 id="notes"><u>Notes</u></h2><ul><li>Use the additional leakage sensor in only specific installation scenarios that require an auxiliary refrigerant leak sensor to be installed.&#xA0;</li><li>The refrigerant sensor has a design life of 15 years. Replace the sensor within its service life.&#xA0;</li><li>The following are the alarm indicators for the refrigerant sensor:&#xA0;<table style="width: 74%; margin-right: calc(26%);"><thead><tr><th style="width: 65.8519%; text-align: center;" class="fr-thick"><strong>Condition</strong><br></th><th style="width: 33.9406%; text-align: center;" class="fr-thick"><strong>Error Code</strong><br></th></tr></thead><tbody><tr><td style="width: 65.8519%; text-align: center;" class="fr-thick">Refrigerant Leak Detected</td><td style="width: 33.9406%; text-align: center;" class="fr-thick">Display &quot;Hd&quot;</td></tr><tr><td style="width: 65.8519%; text-align: center;" class="fr-thick">Communication Error with Refrigerant Sensor</td><td style="width: 33.9406%; text-align: center;" class="fr-thick">Display &quot;Fd&quot;</td></tr></tbody></table></li><li>Only use manufacturer-approved sensors as replacements.&#xA0;</li></ul>

Understand the Additional Leakage Sensor for Wall-Mounted Systems

This article explains the additional leakage sensor for Quantum Ultra Floor-Ceiling Flex (UYT-24) systems.

<h2 id="isPasted"><u>Introduction</u></h2><p>This article explains the additional leakage sensor for Quantum Ultra Floor-Ceiling Flex (UYT-24) systems.&#xA0;</p><p>The auxiliary refrigerant leak sensor monitors the system operation. If refrigerant concentration exceeds the alarm threshold, the system will stop the compressor and start the circulation fan for safety.&#xA0;</p><p>The refrigerant leak sensor is equipped to systems for safety.</p><h2 id="isPasted"><u>Location of the Leakage Sensor</u></h2><p><strong>Note:&#xA0;</strong>The actual location may vary depending on the model and cabinet design.&#xA0;</p><p><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120516-bf595d7b-e7e2-4b8f-9d2e-88885b1de1eb-uyt24_additional_leakage_sensor.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></p><h2 id="isPasted"><u>Notes</u></h2><ul><li>Use the additional leakage sensor in only specific installation scenarios that require an auxiliary refrigerant leak sensor to be installed.&#xA0;</li><li>The refrigerant sensor has a design life of 15 years. Replace the sensor within its service life.&#xA0;</li><li>The following are the alarm indicators for the refrigerant sensor:&#xA0;<table style="width: 74%; margin-right: calc(26%);"><thead><tr><th style="width: 65.8519%; text-align: center;" class="fr-thick"><strong>Condition</strong><br></th><th style="width: 33.9406%; text-align: center;" class="fr-thick"><strong>Error Code</strong><br></th></tr></thead><tbody><tr><td style="width: 65.8519%; text-align: center;" class="fr-thick">Refrigerant Leak Detected</td><td style="width: 33.9406%; text-align: center;" class="fr-thick">Display &quot;Hd&quot;</td></tr><tr><td style="width: 65.8519%; text-align: center;" class="fr-thick">Communication Error with Refrigerant Sensor</td><td style="width: 33.9406%; text-align: center;" class="fr-thick">Display &quot;Fd&quot;</td></tr></tbody></table></li><li>Qualified personnel must maintain the refrigerant sensor.&#xA0;</li><li>Only use manufacturer-approved sensors as replacements.&#xA0;</li></ul>

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

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