Follow these steps to install the ECOasis 50 Ductless Wall-Mounted Single-Room Energy Recovery Ventilator.

<h2 id="introduction">Introduction</h2>Follow these steps to install the <a href="https://www.pioneerminisplit.com/collections/energy-recovery-ventilators/products/pioneer-ecoasis-50-ductless-wall-mounted-single-room-wi-fi-energy-recovery-ventilator" target="_blank" rel="noopener noreferrer">ECOasis 50 Ductless Wall-Mounted Single-Room Energy Recovery Ventilator</a>.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026022416-aff63e13-4bb9-4716-9339-6da03259b272-erv050_product.jpg" style="width: 300px;" class="fr-fic fr-dib fr-bordered"><h2 id="steps">Steps</h2>1. Drill a 6 1/4 to 6 3/4-inch (160 to 170 mm) round hole in the wall, as shown below.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026071719-5f6bfe39-11e3-45b1-b1bc-8e3cb2238073-erv50_install_1.png" style="width: 600px;" class="fr-fic fr-dib fr-bordered">2. Insert the PVC pipe into the hole. Adjust it to fit flush with the interior and exterior walls.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026071719-31563f30-57f5-45c8-8e71-770721e4fde6-erv50_install_2.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered">Ensure an airtight seal by filling the gap between the PVC pipe and the wall with PU foam on both the indoor and outdoor sides.Important Notes<ul><li style="font-size: 16px;">The duct consists of two outer sleeves and adjusts to fit wall thicknesses up to 19-5/8 inches (498 mm).</li><li style="font-size: 16px;">If the wall thickness is less than 14-5/8 inches (371 mm), cut the duct to size.</li><li style="font-size: 16px;">Refer to the grille package for outer grille installation instructions.</li></ul>3. Insert the PVC pipe into the wall. Adjust the pipe to fit snugly against the surface.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026071719-2f6fa8ff-2a70-4d9d-bd4c-f730704f8a27-erv50_install_3.png" style="width: 600px;" class="fr-fic fr-dib fr-bordered">Fill the gap between the PVC pipe and the wall &#x2014; both inside and outside the building &#x2014; using PU foam.Open the hood cover and align the bottom of the hood base with the circular opening of the pipe.&#xA0;Mark the positions for the four screw holes on the exhaust hood base on the outside wall.Drill the holes, and then secure the bottom of the plastic hood.&#xA0;4. Mount the main unit on the indoor wall. Route the adapter wire from the back of the unit to the inner duct. Connect it to the exposed fan and temperature sensor wiring. Once connected, neatly organize the remaining wires.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026071719-688067ee-792d-4e60-9456-7e150cb5bbff-erv50_install_4.png" style="width: 600px;" class="fr-fic fr-dib fr-bordered">Align and mount the main unit by matching the plastic and metal tabs on the back cover plate with the corresponding slots on the rear of the main unit.The powerful magnet on the back of the main unit automatically attracts the wall mounting plate.Finally, insert the two small M3 screws (included in the kit) into the holes at the top of the main unit.<h2 id="after-installation-is-complete">After Installation is Complete</h2><span data-sfc-cp data-sfc-root="ep" data-sfc-cb data-complete="true" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" style=" text-decoration: none;"><strong data-sfc-root="ep" data-sfc-cb data-complete="true" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" style=" text-decoration: none;">Check for a gap: Ensure there is no large gap between the main unit and the mounting plate.<span data-sfc-cp data-sfc-root="ep" data-sfc-cb data-complete="true" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" style=" text-decoration: none;"><strong data-sfc-root="ep" data-sfc-cb data-complete="true" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" style=" text-decoration: none;">Verify wiring: If you see a gap, the internal wires are likely misplaced.<span data-sfc-cp data-sfc-root="ep" data-sfc-cb data-complete="true" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" style=" text-decoration: none;"><strong data-sfc-root="ep" data-sfc-cb data-complete="true" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" style=" text-decoration: none;">Reinstall: Remove the main unit and install it again, ensuring the wires sit properly.

Installing ECOasis 50 Energy Recovery Ventilators

Follow this procedure to install the ECOasis 150 Ductless Wall-Mounted Single-Room Energy Recovery Ventilator.

<h2 id="isPasted">Introduction</h2>Follow this procedure to install the <a href="https://www.pioneerminisplit.com/collections/energy-recovery-ventilators/products/pioneer-ecoasis-150-ductless-wall-mounted-single-room-wi-fi-energy-recovery-ventilator" target="_blank" rel="noopener noreferrer">ECOasis 150 Ductless Wall-Mounted Single-Room Energy Recovery Ventilator</a>.&#xA0;Two installation scenarios are available. Select either the rear or side of the equipment for the air inlets and outlets.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026022416-a0b536bd-2b5f-454c-98e6-730b2af62c42-erv150_main.jpg" style="width: 300px;" class="fr-fic fr-dib fr-bordered"><h2 id="rear-installation">Rear Installation</h2>1. Choose a suitable location on the wall to mount the equipment. Mark the intended locations for the outdoor air inlet and exhaust air outlet. Then, mark the five mounting holes for the installation panel.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026071720-f72d0f37-8392-484a-82b5-c9cbb9fda05f-erv150_rear_installation.png" style="width: 400px;" class="fr-fic fr-dib fr-bordered">Clearances:&#xA0;<ul><li data-sfc-cp data-sfc-root="ep" data-sfc-cb data-hveid="CAAIBhAB" data-complete="true" data-sae style="text-decoration: none; font-size: 16px;" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" id="isPasted"><span data-sfc-cp data-sfc-root="ep" data-sfc-cb data-complete="true" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" style=" text-decoration: none;"><strong data-sfc-root="ep" data-sfc-cb data-complete="true" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" style=" text-decoration: none;">Floor clearance: Maintain a distance of at least 5 feet (1.5 m) from the bottom of the ventilator to the floor.</li><li data-sfc-cp data-sfc-root="ep" data-sfc-cb data-hveid="CAAIBhAC" data-complete="true" data-sae style="text-decoration: none; font-size: 16px;" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);"><span data-sfc-cp data-sfc-root="ep" data-sfc-cb data-complete="true" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" style="text-decoration: none;"><strong data-sfc-root="ep" data-sfc-cb data-complete="true" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" style=" text-decoration: none;">Wall clearance: Leave at least 1 foot (0.3 m) of space between the walls and both the left and right sides of the ventilator.</li></ul>2. Drill two holes in the wall for the fresh air inlet and exhaust outlet, each measuring 4 inches (102 mm) in diameter.<ul><li style="font-size: 16px;">Angle the holes downward toward the outside at a minimum slope of 1/4 inch per foot (18 mm per meter) to prevent rainwater ingress.</li><li style="font-size: 16px;">Use a 1/4-inch drill bit to make five mounting holes, each 2-3/4 inches deep (&#xD8; 6 x 70 mm).</li><li style="font-size: 16px;">Place the five plastic anchors into the mounting holes.</li><li style="font-size: 16px;">The specified hole sizes for the outdoor air inlet and exhaust air outlet are based on the included Pioneer accessories (straight PVC pipes). If you use a different piping size, ensure the wall holes match accordingly.</li></ul>3. Fasten the flange to the installation panel using the included M3 x 12 bolts and nuts.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026071720-2398e8cc-aa8e-49b2-9fc2-b86c8eceb0c3-erv150_rear_installation_3.png" style="width: 600px;" class="fr-fic fr-dib fr-bordered">4. Measure the wall thickness and cut the PVC pipes to the appropriate length. Drill 1/8-inch (3 mm) holes before installing the fastening screws. Connect the pipes to the outdoor air and exhaust accessories as follows:OA side: PVC pipe + Air inlet grille + Rain proof cover + Rubber sealing ring + Tapping screwsEA side: PVC pipe + Air outlet grille + Rain proof cover + Rubber sealing ring + Tapping screws<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026071720-08735ef8-006f-4da3-b4a4-89228d6adb12-erv150_rear_installation_4.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered">5. Slide the assembled ducts into the wall. Ensure the rain cover faces downward to prevent water ingress.Next, seal any gaps between the duct and the wall using appropriate, field-supplied materials such as silicone or waterproof putty.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026071720-8ba6183c-07fe-4e31-8c7c-134804d76a38-erv150_rear_installation_5.png" style="width: 500px;" class="fr-fic fr-dib fr-bordered">6. Secure the ERV installation panel onto the wall using the supplied knock-on anchor bolts.7. Cut the EPS rear cover located at the outdoor air vent. Do not cut the EPS side cover during this installation.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026071720-605c69ac-f298-43ed-8e74-36590ad4f675-erv150_rear_installation_7.png" style="width: 600px;" class="fr-fic fr-dib fr-bordered">8. Install the two round outdoor and exhaust air covers over the side air inlet and side outlet.Attach one seal ring to the rear of the air inlet and the other to the rear of the air outlet.9. Secure the rear-plate thermal insulation foam (or cotton) to the back of the ventilator (near the outdoor air side), if needed. This prevents condensation from forming when operating the unit in cold areas.10. Hang the ventilator on the installation panel. Adjust the four M5 x 18 hanging screws on the back of the ventilator to align with the installation panel slots.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026071720-5f12f5fd-828d-44c6-bf0c-53cb5cac6739-erv150_rear_installation_9.png" style="width: 400px;" class="fr-fic fr-dib fr-bordered">11. After completing the installation, power on the ventilator.&#xA0;<h2 id="side-installation">Side Installation</h2>1. Secure the two sealing rings onto the side flanges. Fasten the flanges to the side of the ventilator using the eight included M3 bolts and M3 nuts.2. Cut the EPS side cover located at the outdoor air vent. Do not cut the EPS rear cover for this installation.&#xA0;<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026071720-d8574ed4-5bbf-4bd7-ba21-67b71cf49584-erv150_side_installation_2.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered">3. Choose a suitable location on the wall to mount the equipment. Mark the intended locations for the outdoor air inlet and exhaust air outlet. Then, mark the five mounting holes for the installation panel according to the ventilator placement.Clearances:&#xA0;<ul><li data-sfc-cp data-sfc-root="ep" data-sfc-cb data-hveid="CAAIBhAB" data-complete="true" data-sae style="text-decoration: none; font-size: 16px;" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);"><span data-sfc-cp data-sfc-root="ep" data-sfc-cb data-complete="true" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" style=" text-decoration: none;"><strong data-sfc-root="ep" data-sfc-cb data-complete="true" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" style=" text-decoration: none;">Floor clearance: Maintain a distance of at least 5 feet (1.5 m) from the bottom of the ventilator to the floor.</li><li data-sfc-cp data-sfc-root="ep" data-sfc-cb data-hveid="CAAIBhAC" data-complete="true" data-sae style="text-decoration: none; font-size: 16px;" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px 0px 12px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);"><span data-sfc-cp data-sfc-root="ep" data-sfc-cb data-complete="true" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" style="text-decoration: none;"><strong data-sfc-root="ep" data-sfc-cb data-complete="true" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 700; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" style=" text-decoration: none;">Wall clearance: Leave at least 1 foot (0.3 m) of space between the walls and both the left and right sides of the ventilator.</li></ul>4. Using the panel as a reference, drill five mounting holes with a 1/4-inch (6 mm) drill bit to a depth of 2-3/4 inches (70 mm). <span data-sfc-cp data-sfc-root="ep" data-sfc-cb data-complete="true" data-copy-service-computed-style="font-family: &quot;Google Sans&quot;, Roboto, Arial, sans-serif; font-size: 16px; font-weight: 400; margin: 0px; text-decoration: none; border-bottom: 0px rgb(10, 10, 10);" style=" text-decoration: none;">Push the five plastic anchors into the newly drilled mounting holes.5. Drill two holes in the wall, each 4 inches in diameter, for the fresh air inlet and exhaust air outlet.Angle the two holes downward toward the outside to prevent rainwater from entering. Maintain a minimum downward slope of 1/4 inch per foot (18 mm per meter).The specified wall hole size is a recommendation only. For side installations, installers must supply and use flexible ducts. Select the final hole size based on the exact diameter of the duct being installed.6. Mount the ventilator onto the installation panel. Adjust the four M5 x 18 hanging screws on the back of the ventilator to align with the panel.7. Cut the PVC pipes to the appropriate length based on the wall thickness, then connect them to the outdoor air and exhaust accessories.<ul id="isPasted"><li style="font-size: 16px;">OA side: PVC pipe + Air inlet grille + Rain proof cover + Rubber sealing ring + Tapping screws</li><li style="font-size: 16px;">EA side: PVC pipe + Air outlet grille + Rain proof cover + Rubber sealing ring + Tapping screws<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026071720-393d57d1-6e36-43a4-ba67-748568ea350c-erv150_rear_installation_4.png" style="width: 800px;" class="fr-fic fr-dib fr-bordered"></li></ul>8. Slide the assembled ducts into the wall. Ensure the rain cover faces downward to prevent water entry.Next, seal any gaps between the duct and the wall using appropriate, field-supplied materials such as silicone or waterproof putty.<img src="https://attachments.gorgias.help/Q9r0k7BYaV2vg13y/hc/9JWjXVxG8m6DvMqm/2026071720-e2b5c0dd-4386-409e-82c8-1f0dd22d8d24-erv150_rear_installation_5.png" class="fr-fic fr-bordered fr-dib" style="width: 500px;">9. Attach the remaining end of the installed pipe to the flanges on the side of the ventilator.10. After completing the installation, power on the ventilator.&#xA0;

Installing ECOasis 150 Energy Recover Ventilators

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Understand the Compressor Crankshaft Heater Control Function

Understand the Heating Fan Delay Function

Understand the Indoor Coil Anti-Freezing Function

Understand the Passive Dehumidification Function

Understand the Refrigerant Leak Detection Function

Vertex Ducted Central Split Systems

Functions & Modes Explained

Determine the Breaker Size & Wire Needed for Your System

Diagnose & Prevent Crossed Wiring in Multi-Zone Systems

Understand how the System Receives Power

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

Electrical Related Queries

Maintenance Tips

Operation & Usage