This is the HVAC Mirage Galaxy Series 42,000 BTU 24 SEER2 Multi-Zone Outdoor Inverter Condenser — a component-only unit engineered for homeowners and contractors who need a single high-efficiency outdoor power plant to drive multiple indoor air handlers across several rooms or zones. Indoor units, line sets, and electrical accessories are sold separately.
The HVAC Mirage OGFH Series 42,000 BTU outdoor inverter condenser is built for multi-room and multi-zone applications where a single, centralized outdoor unit needs to power two or more indoor air handlers independently. Running on a 208-230V single-phase circuit, the variable-speed inverter compressor modulates output continuously to match real-time load demand across all connected zones — delivering 24 SEER2 rated efficiency without the energy waste of single-speed cycling. The factory pre-charged R-410A refrigerant charge and heavy-gauge all-weather cabinet make this unit suitable for both residential and light commercial deployments. Because this is a component-only listing, professional installation by a licensed HVAC contractor is mandatory both for safe system commissioning and to preserve the full manufacturer warranty.
Outdoor Condenser
(OGFH421C)
Indoor Air Handler(s)
Sold Separately
Installation Requirements & Accessories
- Electrical Requirement: Dedicated 208/230V, 60Hz, Single-Phase circuit. Not compatible with 115V circuits.
- Line Set Required (Not Included): 3/8" Liquid line x 7/8" Suction line copper line set. Length determined by job-site layout.
- Control Wiring (Not Included): 14/4 AWG stranded copper communication wire between outdoor and each indoor unit.
- Disconnect Box (Not Included): A lockable electrical disconnect is required by code at the outdoor unit location.
- Indoor Units (Not Included): This is an outdoor condenser only. Compatible HVAC Mirage Galaxy Series indoor heads must be purchased separately to form a complete system.
- Professional Installation Required: EPA Section 608 certification is required for refrigerant handling. Self-installation voids the manufacturer warranty.
[Technical Friction] On multi-zone installations, the most common cause of “E1” indoor-outdoor communication faults is improperly landed or undersized control wire. Always run 14/4 AWG stranded copper communication wire — never solid wire — between the outdoor condenser terminal block and each individual indoor head.
[Long-Term Prevention] Before opening the service valves, use a digital micron gauge to hold the system below 500 microns for a minimum of 15 minutes. A standing vacuum confirms there are no micro-leaks at the flare connections that would bleed refrigerant over time, trigger fault codes, or cause premature compressor failure.
[Expert Validation] Torque all flare fittings using a calibrated Digital Torque Wrench set to the manufacturer-specified values — over-tightening distorts the flare seat and causes seepage just as surely as under-tightening does.
[Professional Standard] All refrigerant handling, including connecting the R-410A line sets and recovering any residual charge during service, must be performed by an EPA Section 608-certified technician in compliance with federal regulations.
Key Benefits
- Multi-Zone Scalability: A single outdoor condenser powers multiple independent indoor zones, eliminating the cost and disruption of running ductwork to every room.
- 24 SEER2 Efficiency: Exceeds current federal minimum efficiency standards, reducing seasonal energy operating costs compared to standard single-speed equipment.
- Variable-Speed Inverter Compressor: Continuously modulates compressor speed to match exact load demand, preventing the temperature swings and energy spikes of on/off cycling.
- Factory Pre-Charged R-410A: The outdoor unit arrives with the refrigerant charge factory-set, reducing field charging time and the risk of field-measurement errors.
- Heavy-Gauge All-Weather Cabinet: Corrosion-resistant cabinet construction supports year-round outdoor operation in residential and light commercial environments.
- 7-Year Compressor / 5-Year Parts Warranty: Industry-competitive warranty coverage when installed by a licensed HVAC professional.
Technical Specifications
| Attribute | Specification |
|---|---|
| Brand | HVAC Mirage |
| Series | Multi-Zone OGFH Series |
| Model Number | OGFH421C |
| Product Type | Outdoor Inverter Condenser Unit |
| System Configuration | Multi-Zone (Outdoor Condenser Only — Indoor Units Sold Separately) |
| Tonnage | 3.5 Ton |
| Cooling Capacity | 42,000 BTU/h |
| SEER2 Rating | 24 SEER2 |
| Voltage | 208-230V / 60Hz / Single-Phase |
| Refrigerant | R-454B (Factory Direct Pre-Charged) |
| Line Set Connections | 3/8" Liquid x 7/8" Suction |
| DIY Installation | No — Professional Installation Required |
| Factory Warranty | 7-Year Compressor / 5-Year Parts Limited Warranty |
Compatibility & Fitment
- Compatible With: Dedicated 208/230V, 60Hz, Single-Phase electrical circuits.
- Compatible With: HVAC Mirage Galaxy Series Multi-Zone indoor air handlers (OGFH Series matched heads).
- Compatible With: 3/8" Liquid / 7/8" Suction copper line sets (not included — purchased separately).
- Not Compatible With: Standard 115V household electrical circuits.
- Not Compatible With: Non-Mirage or non-matched indoor unit brands or model families.
- Not Included: Indoor air handler units are NOT included. This listing is for the outdoor condenser only.
- Not Included: Copper line sets, control wiring, electrical disconnect boxes, and mounting hardware are NOT included.
Frequently Asked Questions
- Is professional installation required to keep the warranty valid, or is this a true DIY kit?
- This is not a DIY system. Professional installation by a licensed and EPA 608-certified HVAC technician is required to keep the 7-Year Compressor / 5-Year Parts Limited Warranty valid. Homeowner self-installation will void the manufacturer warranty.
- Is the line set included, and if not, what size do I need to buy?
- No. The copper line set is NOT included. You will need a 3/8" Liquid line and a 7/8" Suction line for this outdoor condenser. Your installer will calculate the correct lengths based on the distance between the outdoor unit and each indoor head.
- What voltage and circuit does this outdoor condenser require?
- This unit requires a dedicated 208-230V, 60Hz, Single-Phase electrical circuit. It is NOT compatible with standard 115V household outlets. A licensed electrician should verify breaker sizing before installation.
- What refrigerant does the OGFH421C use?
- This unit uses R-454B refrigerant, which is factory pre-charged in the outdoor condenser. All refrigerant handling must be performed by an EPA Section 608-certified technician.
- Does this listing include indoor air handlers to form a complete system?
- No. This is a component-only listing for the outdoor condenser. Compatible HVAC Mirage Galaxy Series Multi-Zone indoor heads must be purchased separately. Contact us to configure a matched complete multi-zone system.
Compliance & Warranty
The OGFH421C uses R-454B refrigerant. All refrigerant handling must be performed by an EPA Section 608-certified technician in compliance with federal regulations. This unit is backed by a 7-Year Compressor / 5-Year Parts Limited Warranty — valid only when the system is installed by a licensed and certified HVAC professional. Download the Factory Warranty Statement for complete terms and conditions.
4 Reviews Hide Reviews Show Reviews
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Smooth Installation & Fast Shipping
Arrived well packaged on a pallet. All components were clearly labeled. System started up immediately upon vacuum leak test and charge release.
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Great Value Direct from Manufacturer
Compared this model to higher priced brands and could not be happier. Clean aesthetic, high SEER2 efficiency, and clear submittal sheets. Fast order processing.
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Outstanding Heating Capacity in Cold Weather
We bought this unit for supplemental heating in our garage workspace. It ran flawlessly all winter through sub-zero temperatures. Great build quality and technical documentation.
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Extremely Quiet & Efficient Heat Pump
Installed this system in my home office. It is whisper quiet inside and cools the room down in under 5 minutes. Shipping from Mini Split Systems Direct was fast with liftgate delivery included.
