HVAC Mirage® | 18,000 BTU | 24 SEER2 | Multizone Outdoor Condenser | 220V | OGFH181C

This listing is for the HVAC Mirage OGFH181C outdoor inverter condenser unit only — a 1.5-ton, 24 SEER2 multizone-capable outdoor unit designed for 208-230V single-phase circuits. It must be paired with compatible HVAC Mirage indoor air handlers to form a complete, operational system. If you need a turn-key matched bundle, see the complete system link below.

The HVAC Mirage OGFH181C is the outdoor inverter condenser unit for the GALAXY Multi-Zone series, rated at 18,000 BTU (1.5 ton) with a 24 SEER2 efficiency rating. Designed for 208-230V single-phase service, this unit uses a variable-speed inverter-driven compressor to modulate capacity across multiple connected indoor air handlers without constant on/off cycling — reducing energy consumption and maintaining more consistent zone temperatures. Its multizone architecture allows a single outdoor unit to serve two or more indoor heads, subject to matched AHRI-certified indoor/outdoor combinations.

Outdoor Inverter Condenser
(OGFH181C — This Item)

Compatible Indoor Air Handler
(Sold Separately)

Wireless Remote Control
(Included with Indoor Unit)

Installation Requirements & Accessories

• Voltage: Requires a dedicated 208-230V / 60Hz / single-phase electrical circuit. Not compatible with 115V-only circuits.
• Breaker Size: [NEEDS VERIFICATION] — Consult the factory submittal sheet for MCA and MOP values.
• Line Set (NOT included): Requires 3/8" liquid line and 7/8" suction line copper tubing. Purchase separately to match your installation run length.
• Line Set Insulation: Not included. Required for all outdoor line set runs.
• Indoor Air Handler(s): Not included. Must be AHRI-certified matched HVAC Mirage indoor units for this outdoor model.
• Disconnect Box: Not included. A code-required weatherproof disconnect must be installed within sight of the outdoor unit.
• Condensate Components: Not included. Managed at the indoor unit level.
• Professional Installation Required: This is not a DIY system. EPA Section 608 certification is required to handle refrigerant.

Pro-Installer Field Tip

[Technical Friction] On 18,000 BTU multizone outdoor units, field leaks at the 7/8" suction flare are disproportionately common — the larger diameter requires more torque and is more sensitive to out-of-round bell cuts than the liquid line fitting.

[Long-Term Prevention] A compromised suction flare on a multizone unit doesn't immediately trigger high-pressure lockout; instead, the system will slowly lose charge, resulting in progressive zone capacity loss and eventual "E1" or outdoor unit communication fault codes as the compressor operates outside its designed envelope.

[Expert Validation] Use an eccentric flaring tool (not a standard block flare tool) to produce a consistent bell geometry on 7/8" ACR copper. Torque the suction flare nut to the factory-specified value (consult the submittal sheet) using a calibrated digital torque wrench — not by feel. After connection, hold a vacuum below 500 microns for a minimum of 15 minutes and verify no rise before opening service valves.

[Professional Standard] Under EPA Section 608, refrigerant loss from a system installed in violation of manufacturer procedures is not a warranty-eligible event. A verified vacuum log (micron gauge reading with timestamp) is the standard field documentation that protects both the installer and the end customer in any future warranty dispute.

Key Benefits

• 24 SEER2 Efficiency: Exceeds the 2023 DOE minimum efficiency standards for the North region, reducing annual operating costs compared to lower-efficiency alternatives.
• Inverter-Driven Variable Speed Compressor: Modulates output continuously rather than cycling on/off, improving temperature consistency across connected indoor zones.
• Multizone Architecture: One outdoor unit serves multiple indoor air handlers — reducing outdoor equipment footprint compared to installing separate single-zone systems per room.
• ENERGY STAR Certified: GALAXY series carries ENERGY STAR designation per the product family description, supporting utility rebate eligibility (verify with local utility).
• 7-Year Compressor Warranty: Factory-backed 7-year compressor / 5-year parts limited warranty provides long-term coverage on the highest-cost component.
• R-410A Factory Pre-Charged [Pending Verification]: Unit ships with refrigerant pre-charged from the factory. Field technician must still pull vacuum and verify charge after line set connection.

Technical Specifications: OGFH181C

Compatibility & Fitment

• ✅ Compatible with: HVAC Mirage GALAXY series indoor air handlers that form an AHRI-certified matched combination with the OGFH181C outdoor unit.
• ✅ Compatible with: Dedicated 208-230V / 60Hz / single-phase electrical circuits.
• ✅ Compatible with: 3/8" liquid x 7/8" suction copper ACR line sets (not included).
• ❌ Not compatible with: 115V-only electrical circuits.
• ❌ Not compatible with: Non-HVAC Mirage indoor air handlers or indoor units from other manufacturer families.
• ❌ Not included: Indoor air handler(s), copper line set, line set insulation, disconnect box, condensate drain components, wall mounting hardware.
• ❌ Not a complete system: This outdoor condenser cannot operate without compatible matched indoor air handlers.

Frequently Asked Questions

Is professional installation required for the OGFH181C, or can I install it myself?

Professional installation is required. The OGFH181C is a standard refrigerant flare-connection system — it is not a DIY no-vacuum kit. A licensed HVAC technician must evacuate the line set to below 500 microns, torque flare fittings to factory specification, and verify system charge. EPA Section 608 certification is required to handle the refrigerant used in this unit.

What breaker size does the OGFH181C require?

The OGFH181C operates on 208-230V / 60Hz / single-phase power. The specific breaker amperage (MCA/MOP) is [NEEDS VERIFICATION] — consult the factory submittal sheet or installation manual for the exact minimum circuit ampacity and maximum overcurrent protection values before sizing the dedicated circuit.

Is the copper line set included with the OGFH181C?

No. The line set is not included. This is a component listing for the outdoor condenser only. The OGFH181C requires a 3/8" liquid line and 7/8" suction line. Line set length, insulation, and any required accessories must be purchased separately.

What refrigerant does the OGFH181C use?

[NEEDS VERIFICATION] — There is a conflict in the source data. The product's custom specification fields list R-454B (Factory Direct Pre-Charged), while the product description references R-454B (Low-GWP / 2026 Mandate Compliant). Please confirm the correct refrigerant by reviewing the AHRI Certificate and Submittal Sheet before purchase or installation.

Is the OGFH181C a complete mini split system?

No. This listing is for the outdoor inverter condenser unit only. It must be matched with compatible HVAC Mirage indoor air handlers to form a complete operational system. Indoor air handlers, line sets, and all ancillary installation materials are sold separately.

Compliance & Warranty

• ENERGY STAR Certified: GALAXY series (verify matched-system AHRI certificate for specific indoor/outdoor combination).
• AHRI Performance Certified: Download AHRI Certificate (PDF)
• EPA Section 608: Refrigerant handling requires EPA 608 certification. Improper handling or installation voids manufacturer warranty.
• Factory Warranty: 7-Year Compressor / 5-Year Parts Limited Warranty. Professional installation by a licensed HVAC contractor is required to maintain warranty eligibility. Download Factory Warranty Statement (PDF)
• Technical Documents: Submittal Sheet (PDF) | Installation & Owner Manual (PDF)
• Register Your Warranty: hvacmirage.us/product-registration