This article explains how to drill the piping wall holes for Quantum Ultra Floor-Ceiling Flex (UYT-24) systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains how to drill the piping wall holes for <a href="https://www.pioneerminisplit.com/collections/quantum-ultra-universal-flex-series" target="_blank" rel="noopener noreferrer">Quantum Ultra Floor-Ceiling Flex (UYT-24) systems</a>.&#xA0;</p><h2 id="steps"><u>Steps</u></h2><ol><li>Take the indoor unit off of the mounting bolts, then make a mark indicating where to create the hole.&#xA0;</li><li>Drill a 2-1/2-3-1/8 inch 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 holes should be 1/4-3/8 of an inch above the bottom of the outside hole.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012117-4bc298fa-2ea1-42ed-9377-739303616372-uyt24_drill_piping_wall_holes_diameter.png" style="width: 300px;" class="fr-fic fr-dib fr-bordered"></li><li>Add any available wall sleeves and covers. In addition, insulate the wall hole with packing putty to prevent heat loss.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012117-ebb6c1fd-a83b-460a-98be-2ee4485654a2-uyt24_drill_piping_wall_holes_wall_sleeves.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li></ol>

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

This article explains how to mount the indoor unit to the ceiling for Quantum Ultra Floor-Ceiling Flex (UYT-24) systems.

<h2 id="isPasted"><u>Introduction</u></h2><p>This article explains how to mount the indoor unit of <a href="https://www.pioneerminisplit.com/collections/quantum-ultra-universal-flex-series" target="_blank" rel="noopener noreferrer" id="isPasted">Quantum Ultra Floor-Ceiling Flex (UYT-24) systems</a> to the ceiling. The article provides the procedure for installing the hanging bolt first, then the installation steps for mounting the indoor unit to the ceiling.&#xA0;</p><p>This system can also be mounted to the floor. For information, see this <a href="https://help.pioneerminisplit.com/en-US/uyt24-mount-idu-floor-4256540" target="_blank" rel="noopener noreferrer">article</a>.&#xA0;</p><h2 id="isPasted"><u>Pre-Installation Preparation</u></h2><ol><li>Select an installation location that provides unobstructed airflow and adequate access for maintenance. Avoid positioning the unit near obstacles that may restrict air intake or discharge.&#xA0;</li><li>Mount the indoor unit to a structurally sound wall that can fully support the unit&apos;s weight. The wall surface must be flat and level to allow the unit to sit flush against it. An uneven surface may cause vibration and could result in operational issues or physical damage to the unit.&#xA0;</li><li>Dislodge and remove both side panels as well as the return air grille of the indoor unit. Set them aside.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-c6a1a93e-d5ac-4cdc-a9d0-ef9cbcce53ad-uyt24_idu_side_panel.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>The piping and drainage exit pathway is below side. Rear exit (now upward) is unavailable by default when using the gravity drain. The lineset and service bundle will enter from below the unit. Rear-side connections can only utilized when using a condensate pump (sold separately).&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-4f713d38-ecd1-41ff-bd7a-801b69eb5587-uyt24_idu_lineset_service_bundle_2.png" style="width: 300px;" class="fr-fic fr-dib fr-bordered"></li></ol><h2 id="install-the-hanging-bolt"><u>Install the Hanging Bolt</u></h2><ol><li>Use four 3/8-inch mounting bolts and eight washers/nuts to suspend the indoor unit. The mounting bolts are not included with the system.&#xA0;</li><li>The center-to-center distance between the bolts must match the specifications provided for the unit size.&#xA0;</li><li>Follow the specific installation diagram and measurements provided to complete the handing bolt installation.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-2d29c83a-9514-4d7d-ba03-f22d0fa21717-uyt24_idu_hanging_bolt.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li></ol><h2 id="installation-steps"><u>Installation Steps</u></h2><ol><li>After positioning the hanging bolts into place, slide one nut and washer onto to each bolt. Position the nuts slightly above the final resting place of the four suspension brackets. Use tape to keep the washer in place.&#xA0;</li><li>Align the four hanging bolts into the T-groove of the indoor unit&apos;s hanging bracket. The hanging bolts are not included with the system.&#xA0;</li><li>Carefully lift and suspend the indoor unit using two people or a mechanical lifting device.&#xA0;</li><li>Ensure that the unit is sufficiently level using a bubble level/built-in level indicator (more than a 10&#xB0; upward tilt).</li><li>Attach these components in the following order:&#xA0;<ul><li>Nut (upper)</li><li>Gasket (upper)</li><li>Suspension bracket</li><li>Gasket (lower)</li><li>Nut (lower)<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-e3599895-1a9c-4a5e-b93a-516c93ddbd7c-uyt24_idu_attach_components.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li></ul></li></ol><h2 id="isPasted"><u>Structure Mounting Methods</u></h2><p><strong>Finished Concrete (Brick or Slab)</strong></p><ul><li>Use expansion bolts to fix the hanging hooks directly into the concrete.&#xA0;</li><li>Drill to a depth of 45-50 mm to ensure secure anchoring.&#xA0;</li></ul><p><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-3a754944-6851-4863-bff3-224057f46119-cyt24_mounting_methods_finished_concrete.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></p><p><strong>New Concrete Bricks</strong></p><ul><li>Use one of the following methods to embed the screw bolts:&#xA0;<ul><li>Blade-type insertion.&#xA0;</li><li>Slide-in channel insertion.&#xA0;</li></ul></li><li>Ensure that the screw bolts are anchored firmly into embedded steel reinforcement bars.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-6e3d825e-f5d6-4952-ab8c-46e1f3499367-cyt24_mounting_methods_new_concrete_bricks.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li></ul><p><strong>Steel Roof Beam Structure</strong></p><ul><li>Install supporting angle steel brackets.&#xA0;</li><li>Mount the hanging bolts through the brackets and secure as shown in the illustration.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-25dbcf83-1818-4e88-b18a-515f0d209257-cyt24_mounting_methods_steel_roof_beam.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li></ul><p><strong>Wooden Construction</strong></p><ul><li>Secure the angle iron across the wooden joints.&#xA0;</li><li>Secure the hanging bolts through the channel and into the ceiling structure below.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-7df57a3e-e3ec-4f3d-92a4-d214e411821f-cyt24_mounting_methods_wooden_construction.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li></ul><h2 id="final-mounting-notes"><u>Final Mounting Notes</u></h2><ul><li>Use a 3/8-inch locking nut to secure the final assembly. Fine-tune the adjustment until the handler is level.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-d9d9d5e5-8d8e-4ff5-a5fe-6b68f7f01514-uyt24_idu_final_assembly.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>Tighten all the nuts firmly to ensure a stable and vibration-free installation, then re-check for levelness.&#xA0;</li><li>Leave an upward tilt of 1-2/100 for drainage.&#xA0;</li><li>The air gap should 3/4 of an inch (19 mm) or less.&#xA0;</li></ul>

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

This article explains how to mount the indoor unit to the floor for Quantum Ultra Floor-Ceiling Flex (UYT-24) systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains how to mount the indoor unit of <a href="https://www.pioneerminisplit.com/collections/quantum-ultra-universal-flex-series" target="_blank" rel="noopener noreferrer" id="isPasted">Quantum Ultra Floor-Ceiling Flex (UYT-24) systems</a> to the floor. The article provides the procedure for installing the hanging bolt first, then the installation steps for mounting the indoor unit to the floor.&#xA0;</p><p>This system can also be mounted to the ceiling. For information, see this <a href="https://help.pioneerminisplit.com/en-US/uyt24-mount-idu-ceiling-4256547" target="_blank" rel="noopener noreferrer">article</a>.&#xA0;</p><h2 id="pre-installation-preparation"><u>Pre-Installation Preparation</u></h2><ol><li>Select an installation location that provides unobstructed airflow and adequate access for maintenance. Avoid positioning the unit near obstacles that may restrict air intake or discharge.&#xA0;</li><li>Mount the indoor unit to a structurally sound wall that can fully support the unit&apos;s weight. The wall surface must be flat and level to allow the unit to sit flush against it. An uneven surface may cause vibration and could result in operational issues or physical damage to the unit.&#xA0;</li><li>Dislodge and remove both side panels as well as the return air grille of the indoor unit. Set them aside.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-c6a1a93e-d5ac-4cdc-a9d0-ef9cbcce53ad-uyt24_idu_side_panel.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>Select the piping and drainage exit pathway, both the rear side and below side are available.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-0203b088-7c18-41fe-9449-28e249e7f521-uyt24_idu_lineset_service_bundle.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li></ol><h2 id="install-the-hanging-bolt"><u>Install the Hanging Bolt</u></h2><ol><li>Use four 3/8 inch mounting bolts and eight washers/nuts to suspend the indoor unit. The mounting bolts are not included with the system. &#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-b0ab15e7-34ea-4ba1-93f0-181350f957ee-uyt24_idu_anchor_bolts.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>The center-to-center distance between the bolts must match the specifications provided for the unit size.&#xA0;</li><li>Follow the specific installation diagram and measurements provided to complete the hanging bolt installation.&#xA0;</li><li>The available mounting methods apply to both ceiling and floor applications.&#xA0;</li><li>Confirm the bolts are properly spaced and perfectly level.&#xA0;</li><li>Hang the indoor unit onto the mounting bolts.&#xA0;</li><li>Confirm the unit is perfectly level.&#xA0;</li></ol><h2 id="isPasted"><u>Installation Steps</u></h2><ol><li>After positioning the hanging bolts into place, slide one nut and washer onto to each bolt. Position the nuts slightly above the final resting place of the four suspension brackets. Use tape to keep the washer in place.&#xA0;</li><li>Align the four hanging bolts into the T-groove of the indoor unit&apos;s hanging bracket. The hanging bolts are not included with the system.&#xA0;</li><li>Carefully lift and suspend the indoor unit using two people or a mechanical lifting device.&#xA0;</li><li>Ensure that the unit is sufficiently level using a bubble level/built-in level indicator (more than a 10&#xB0; upward tilt).</li><li>Attach these components in the following order:&#xA0;<ul><li>Nut (upper)</li><li>Gasket (upper)</li><li>Suspension bracket</li><li>Gasket (lower)</li><li>Nut (lower)<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-e3599895-1a9c-4a5e-b93a-516c93ddbd7c-uyt24_idu_attach_components.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li></ul></li></ol><h2 id="structure-mounting-methods"><u>Structure Mounting Methods</u></h2><p><strong>Finished Concrete (Brick or Slab)</strong></p><ul><li>Use expansion bolts to fix the hanging hooks directly into the concrete.&#xA0;</li><li>Drill to a depth of 45-50 mm to ensure secure anchoring.&#xA0;</li></ul><p><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-3a754944-6851-4863-bff3-224057f46119-cyt24_mounting_methods_finished_concrete.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></p><p><strong>New Concrete Bricks</strong></p><ul><li>Use one of the following methods to embed the screw bolts:&#xA0;<ul><li>Blade-type insertion.&#xA0;</li><li>Slide-in channel insertion.&#xA0;</li></ul></li><li>Ensure that the screw bolts are anchored firmly into embedded steel reinforcement bars.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-6e3d825e-f5d6-4952-ab8c-46e1f3499367-cyt24_mounting_methods_new_concrete_bricks.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li></ul><p><strong>Steel Roof Beam Structure</strong></p><ul><li>Install supporting angle steel brackets.&#xA0;</li><li>Mount the hanging bolts through the brackets and secure as shown in the illustration.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-25dbcf83-1818-4e88-b18a-515f0d209257-cyt24_mounting_methods_steel_roof_beam.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li></ul><p><strong>Wooden Construction</strong></p><ul><li>Secure the angle iron across the wooden joints.&#xA0;</li><li>Secure the hanging bolts through the channel and into the ceiling structure below.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-7df57a3e-e3ec-4f3d-92a4-d214e411821f-cyt24_mounting_methods_wooden_construction.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li></ul><h2 id="isPasted"><u>Final Mounting Notes</u></h2><ul><li>Use a 3/8-inch locking nut to secure the final assembly. Fine-tune the adjustment until the handler is level.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012116-d9d9d5e5-8d8e-4ff5-a5fe-6b68f7f01514-uyt24_idu_final_assembly.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li><li>Tighten all the nuts firmly to ensure a stable and vibration-free installation, then re-check for levelness.&#xA0;</li><li>Leave an upward tilt of 1-2/100 for drainage.&#xA0;</li><li>The air gap should 3/4 of an inch (19 mm) or less.&#xA0;</li></ul><p><br></p>

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

This article explains how to prepare the refrigerant piping of the indoor unit for Quantum Ultra Floor-Ceiling Flex (UYT-24) systems.

<h2 id="isPasted"><u>Introduction</u></h2><p>This article explains how to prepare the refrigerant piping of the indoor unit for <a href="https://www.pioneerminisplit.com/collections/quantum-ultra-universal-flex-series" target="_blank" rel="noopener noreferrer">Quantum Ultra Floor-Ceiling Flex (UYT-24) systems</a>.</p><h2 id="configuration-options"><u>Configuration Options</u></h2><p>The piping &quot;pigtails&quot; that are pre-attached to the indoor unit can be run in two different ways. Decide which type of configuration is most suitable before continuing.&#xA0;</p><p><strong>Configuration Option #1</strong><strong><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012117-8730c8be-1e1b-4a87-88f1-e3b426984148-uyt24_refrigerant_piping_config_1.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></strong></p><p><strong><strong id="isPasted">Configuration Option #2<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012117-b5c60264-b29b-420f-9d0a-f4ec91a81187-uyt24_refrigerant_piping_config_2.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></strong></strong></p><p>Confirm proper wall slope (at least 1/4 inch per foot) to ensure successful condensate drainage.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012117-1c263cbb-0035-4131-9ca7-d56023705967-uyt24_refrigerant_piping_drain_hose.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></p>

Prepare the Refrigerant Piping of the Indoor Unit for Quantum Ultra Floor-Ceiling Flex (UYT-24) 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 installation location for indoor units of <a href="https://www.pioneerminisplit.com/collections/quantum-ultra-universal-flex-series" target="_blank" rel="noopener noreferrer">Quantum Ultra Floor-Ceiling Flex (UYT-24) systems</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/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><h2 id="isPasted"><u>Indoor Unit Diagrams</u></h2><p><strong>Floor Mounting</strong><strong><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012115-5db25550-d3a1-4e76-bd8e-2bca0f939d29-uyt24_idu_dimensions_floor_mounting.png" style="width: 1000px;" class="fr-fic fr-dii fr-bordered"></strong></p><p><strong>Ceiling Mounting<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012115-dee3671a-ad56-4862-af3e-5322c41f8535-uyt24_idu_dimensions_ceiling_mounting.png" style="width: 1000px;" class="fr-fic fr-dii fr-bordered"></strong></p>

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

This article outlines the procedures for connecting the indoor unit condensate piping for Quantum Ultra Floor-Ceiling Flex (UYT-24) systems.

<h2 id="isPasted"><u>Introduction</u></h2><p>This article explains how to set up the indoor unit condensate piping connections for <a href="https://www.pioneerminisplit.com/collections/quantum-ultra-universal-flex-series" target="_blank" rel="noopener noreferrer">Quantum Ultra Floor-Ceiling Flex (UYT-24) systems</a>. &#xA0;</p><p>The article explains how to install the flexible hose for the condensate piping, as well as its connection procedure. In addition, the article explains the heat insulation process and how to ensure a continuous downward pitch. .&#xA0;</p><h2 id="drain-pipe--insulation-material-requirements"><u>Drain Pipe &amp; Insulation Material Requirements</u></h2><ul><li>Drain pipe: Polyvinyl chloride (PVC) pipe with an outer diameter of approximately 1-1/4 inch (32 mm).&#xA0;</li><li>Heat insulation: Foamed polyethylene insulation with a maximum thickness of 3/8 inch (9.5 mm).&#xA0;</li></ul><h2 id="install-the-flexible-hose"><u>Install the Flexible Hose</u></h2><ol><li>Measure the diameter of the hard pipe using a pipe cutter, and adjust the joining angle as needed.&#xA0;</li><li>Extend the flexible hose to the required length without deforming excessively as shown in the illustrations.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012117-2710cfe5-b721-4f0f-a88b-e2569d46483d-uyt24_flexible_hose_installation.png" style="width: 300px;" class="fr-fic fr-dib fr-bordered"></li><li>Use the provided hose band to secure the flexible hose firmly.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026011918-ec59aa32-ab6a-4289-9df5-e37d613a512f-ryt24_flexible_hose_installation_hose_clamp.png" style="width: 300px;" class="fr-fic fr-dib fr-bordered"></li><li>Install the flexible hose in a horizontal orientation to ensure proper drainage. The maximum bending angle is 45&#xB0;.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026011918-c6ddec80-e773-4ddb-a73d-fe6cb33a1290-ryt24_flexible_hose_installation_bend_45_degrees_max.png" style="width: 300px;" class="fr-fic fr-dib fr-bordered"></li></ol><h2 id="connection-procedure"><u>Connection Procedure</u></h2><ol><li>Connect the transparent flexible hose to the polyvinyl chloride (PVC) drain pipe.&#xA0;</li><li>Apply PVC adhesive to the connection point between the drain pipe and flexible hose, ensuring a watertight seal.&#xA0;</li><li>Apply the adhesive approximately 1.5 inches (38 mm) from the end of the PVC pipe, then insert it into the flexible hose.&#xA0;</li><li>Allow at least 10 minutes for the adhesive to cure. Do not apply pressure to the joint during the drying period.&#xA0;</li></ol><h2 id="heat-insulation"><u>Heat Insulation</u></h2><ol><li>Wrap the entire length of the flexible hose carefully with the provided insulation material, starting from the flexible hose and continuing to the indoor unit connection.&#xA0;</li><li>Ensure that there are no gaps or exposed sections. This could potentially cause condensation.&#xA0;</li><li>If necessary, use additional field-supplied insulation material to fully cover all piping and connections.&#xA0;</li></ol><h2 id="continuous-downward-pitch--no-kinks"><u>Continuous Downward Pitch &amp; No Kinks</u></h2><ol><li>Ensure that the drain hose slopes downward all throughout with an angle of 30&#xB0; to prevent back flow.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012117-63e87860-76cb-49fa-bef6-a529a549996f-uyt24_continuous_downward_pitch.png" style="width: 300px;" class="fr-fic fr-dib fr-bordered"></li><li>Make sure the hose does not have any kinks or points of upward flow throughout the entire channel.&#xA0;</li><li>Maintain at least a 2-inch (50.8 mm) gap between the drain outlet and final termination point (ground, grass, etc.)</li></ol><h2 id="after-the-system-installation-is-completed"><u>After the System Installation is Completed</u></h2><p>Check the condensate drain line for leaks, and ensure that it drains properly. If a field-provided condensate pump has been installed, make sure it operates properly. Pour water into the drain pan through the inspection port to confirm flow.&#xA0;</p><h2 id="notes"><u>Notes</u></h2><ul><li>Insulate all drain piping and connections to the indoor unit to prevent dew formation and dripping.&#xA0;</li><li>Maintain a continuous downward slope of less than 1/4 per foot (76 mm), with no dips, sags, or reverse slopes. The minimum slope ratio is 1/50.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026011918-f1500fc9-9b26-4a5d-9958-2d8f4c2e01e8-ryt24_condensate_piping_connections_dont_pitch.png" style="width: 300px;" class="fr-fic fr-dib fr-bordered"><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026011918-4fe194ea-a4b3-4072-bff3-27e407afaf2a-ryt24_condensate_piping_connections_slope_downward.png" style="width: 300px;" class="fr-fic fr-dib fr-bordered"></li><li>Install support straps/brackets every 5-6.5 feet (1.5-2 m) along horizontal runs to maintain proper slope and prevent sagging.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026011918-552382bc-663b-4852-af60-96ee8c601a27-ryt24_condensate_piping_connections_support_straps.png" style="width: 300px;" class="fr-fic fr-dib fr-bordered"></li><li>Keep the total horizontal pipe length under 65 feet (20 m).&#xA0;</li><li>If installed side-by-side, maintain a gap of approximately 3/8 inch (9.5 mm) between parallel pipes.</li></ul>

Set Up the Indoor Unit Condensate Piping Connections for Quantum Ultra Floor-Ceiling Flex (UYT-24) 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 <a href="https://www.pioneerminisplit.com/collections/quantum-ultra-universal-flex-series" target="_blank" rel="noopener noreferrer">Quantum Ultra Floor-Ceiling Flex (UYT-24) systems</a>.&#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

This article explains how to wire the indoor unit to the outdoor unit for Quantum Ultra Floor-Ceiling Flex (UYT-24) systems.

<h2 id="introduction"><u>Introduction</u></h2><p>This article explains how to wire the indoor unit to the outdoor unit for <a href="https://www.pioneerminisplit.com/collections/quantum-ultra-universal-flex-series" target="_blank" rel="noopener noreferrer">Quantum Ultra Floor-Ceiling Flex (UYT-24) systems</a>.&#xA0;</p><h2 id="isPasted"><u>Connect the Signal Cable</u></h2><p>There are three terminals (1, 2, 3) and ground (g). It is vital that the colors and numbers between the indoor and outdoor unit match for each terminal. The color selection does not matter as much as matching number to number does. Do not mix up the wires between each end.&#xA0;</p><p>Consult the diagram affixed to the indoor and outdoor units respectively for specific wiring instructions.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012115-a3af8acd-a76a-463d-a662-63cc655630e4-ryt24_wire_idu_simplified_diagram.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></p><h2 id="indoor-unit-wiring"><u>Indoor Unit Wiring</u></h2><p>Open the electrical junction box to access the wiring terminals. Ensure that all connecting wires are routed through the wire-inlet rubber grommet to maintain a proper seal.&#xA0;</p><p>Connect the wires in accordance with the wiring diagram, then verify that all wire strands are fully inserted and securely clamped at the terminals. All connections must be tight and free of looseness.&#xA0;</p><table style="width: 100%;"><tbody><tr><td style="width: 40.8485%; text-align: center; background-color: rgb(239, 239, 239);" colspan="2" rowspan="2" class="fr-thick"><strong>UYT-24</strong></td><td style="width: 20.4243%; text-align: center; background-color: rgb(239, 239, 239);" class="fr-thick"><strong>18K</strong></td><td style="width: 20.4243%; text-align: center; background-color: rgb(239, 239, 239);" class="fr-thick"><strong>24K</strong></td></tr><tr><td style="width: 61.4208%; text-align: center; background-color: rgb(239, 239, 239);" colspan="2" class="fr-thick"><strong>Sectional Area (AWG)</strong></td></tr><tr><td style="width: 32.2644%;" rowspan="3" class="fr-thick"><div style="text-align: center;">Power Supply Cable</div></td><td style="width: 8.7321%; text-align: center;" class="fr-thick">L2</td><td style="width: 20.4243%; text-align: center;" rowspan="3" class="fr-thick">12 AWG</td><td style="width: 20.4243%; text-align: center;" rowspan="3" class="fr-thick">12 AWG</td></tr><tr><td style="width: 8.7321%; text-align: center;" class="fr-thick">L1</td></tr><tr><td style="width: 8.7321%;" class="fr-thick"><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012115-25fcd207-460b-4a37-a256-4a81767aba7a-ryt24_wire_idu_symbol.png" style="width: 50px;" class="fr-fic fr-dii"></td></tr><tr><td style="width: 32.2644%; text-align: center;" rowspan="4" class="fr-thick">Connection Cable for Communication Between Indoor &amp; Outdoor Units</td><td style="width: 8.7321%; text-align: center;" class="fr-thick">3(L)</td><td style="width: 20.4243%; text-align: center;" rowspan="4" class="fr-thick">16 AWG</td><td style="width: 20.4243%; text-align: center;" rowspan="4" class="fr-thick">16 AWG</td></tr><tr><td style="width: 8.7321%; text-align: center;" class="fr-thick">2(N)</td></tr><tr><td style="width: 8.7321%; text-align: center;" class="fr-thick">1(S)</td></tr><tr><td style="width: 8.7321%;" class="fr-thick"><img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012115-c95f7295-b611-4d7a-ac5e-f8f50fd557f9-ryt24_wire_idu_symbol.png" style="width: 300px;" class="fr-fic fr-dii"></td></tr></tbody></table><p><br></p><h2 id="notes"><u>Notes</u></h2><ul><li>Consult the nameplate on the system for detailed electrical specifications.&#xA0;</li><li>230V systems require a double-pole breaker (tandem-type will not work).&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026012115-a78f00c2-defd-455c-adf7-16ca5711d80d-ryt24_wire_idu_double_pole_230v_breaker.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered"></li></ul>

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

This article explains how to wrap the lines and seal the air gaps for Quantum Ultra Floor-Ceiling Flex (UYT-24) systems.

<h2 id="isPasted"><u>Introduction</u></h2><p>This article explains how to wrap the lines and seal the air gaps for <a href="https://www.pioneerminisplit.com/collections/quantum-ultra-universal-flex-series" target="_blank" rel="noopener noreferrer">Quantum Ultra Floor-Ceiling Flex (UYT-24) systems</a>.&#xA0;</p><p><strong>Note:</strong> Even small gaps can result in air or water leakage, or cause condensation to form.&#xA0;</p><h2 id="steps"><u>Steps</u></h2><ol><li>Arrange the pipes, cables, and drain hose correctly.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2025120815-2cb79760-f9ef-4b9a-a29d-55fa8197be57-cyt24_connect_refrigerant_piping_idu_bundle.png" style="width: 400px;" 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/2025120815-77bbaf96-163b-4af8-bf76-077a3fcad7f6-cyt24_connect_refrigerant_piping_idu_vinyl_tape.png" style="width: 400px;" class="fr-fic fr-dib fr-bordered"></li><li>Run the bound bundle through the wall hole, ensuring not to kink the drainpipe when binding.&#xA0;</li><li>Ensure that all the connections between the panel and ceiling, as well as between the panel and indoor unit are properly sealed.&#xA0;</li></ol>

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

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