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MRCOOL  |  SKU: GCNV-VD00-3834
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MRCOOL GeoCool No-Vac Vertical Downflow without Air Box 3/8 3/4 Precharge Line Set GCNV-VD00-3834

$208.00 USD $359.00

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Description

The MRCOOL GeoCool No‑Vac Vertical Downflow without Air Box 3/8″‑3/4″ Precharge Line Set (model GCNV‑VD00‑3834) is a pre‑charged refrigerant line set engineered for use with MRCOOL GeoCool geothermal HVAC systems. It is designed specifically for vertical downflow applications without an air box, making it ideal for installations where space is limited or a direct downward orientation is required.

This line set features No‑Vac technology, meaning it arrives factory‑precharged with R‑410A refrigerant and eliminates the need for vacuuming or additional refrigerant charging on site — significantly simplifying installation and saving time and labor compared to traditional line sets. Its durable, corrosion‑resistant construction ensures long‑term reliability in geothermal applications.

The set includes both a 3/8″ liquid line and a 3/4″ suction line, sized for standard GeoCool geothermal system requirements, and is built with leak‑free quick‑connect fittings to speed up setup and help ensure airtight performance. This makes it a practical choice for residential geothermal heat pump installations where fast, efficient setup is desired.

Ideal for vertical downflow configurations, retrofit projects, or new geothermal system installations, this pre‑charged line set enhances the installation experience by reducing onsite refrigerant handling and delivering dependable, ready‑to‑connect performance.

Features

  • No-Vac Technology – Precharged line set eliminates the need for field vacuuming or charging, saving time and labor.
  • Vertical Downflow Design – Specifically designed for vertical installations without the air box, ideal for certain retrofit or tight-space projects.
  • Precharged Refrigerant – Comes factory prefilled with eco-friendly R410A refrigerant for hassle-free connection.
  • Heavy-Duty Construction – Built with durable, corrosion-resistant materials for long-term use in geothermal applications.
  • Leak-Free Quick Connects – Secure fittings ensure airtight performance and simplify system setup.

Specifications

Dimensions 57.7 in D x 12.55 in W x 3.9 in H
Refrigerant Type R410a
Liquid Line Size 3/8
Suction Line Size 3/4
Has Batteries No
Contains Electronics No
Contains Chemicals Yes
Contains Aerosol Yes
Contains Compressed Gas Yes
Proposition 65 Warning Yes

Applications

  • Residential HVAC Systems – Ideal for geothermal systems in homes with vertical downflow setups.

  • Retrofitting Projects – Simplifies installations in older buildings where access or clearance is limited.

  • New Construction – Speeds up geothermal system installation in vertically configured systems.

  • Time-Sensitive Jobs – Great for contractors who need to reduce installation time and avoid on-site refrigerant work.

  • Service Replacements – Can be used for system repairs where the original line set needs to be replaced with minimal downtime.

What’s Included

  • MRCOOL GeoCool No-Vac Vertical Downflow without Air Box 3/8 3/4 Precharge Line Set (GCNV-VD00-3834)

  • User Manual

Frequently-Asked Questions

Is this line set compatible with all MRCOOL GeoCool models?
This line set is compatible with select GeoCool systems. Please confirm the match with the product model and orientation type before purchase.

Does this require refrigerant handling during installation?
No. The line set comes precharged and uses No-Vac quick connects to eliminate the need for on-site refrigerant handling.

Can it be used with other geothermal brands?
It's optimized for MRCOOL GeoCool systems. Use with other brands is not guaranteed and may void warranty.

Manual

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