HVAC Mirage | 12000 BTU | 19.0 SEER2 | Concealed Duct Ceiling | Indoor Unit Component | 208/230V | DGFH121C

The HVAC Mirage DGFH121C is a 12,000 BTU concealed ducted air handler designed for discreet, high-efficiency heating and cooling. This indoor component integrates seamlessly into existing or new ductwork to provide targeted climate control without compromising your interior aesthetics — ideal for buyers who want conditioned air distributed through hidden ducts rather than a visible wall-mounted head.

Engineered for spaces requiring concealed airflow, this 12,000 BTU (1.0 Ton) ducted indoor handler is built for multi-zone setups or single-zone applications where a wall-mounted head is architecturally undesirable. Operating on a 208/230V circuit and rated at 19.0 SEER2 when matched with a compatible condenser, it uses R-454B refrigerant (factory direct pre-charged) and integrates with inverter-driven outdoor units for variable-speed comfort.

Indoor Air Handler

Wireless Remote Control

Installation Requirements & Accessories

• Electrical: Requires a dedicated 208/230V, 60Hz, single-phase circuit. NOT compatible with 115V-only circuits.
• Line Set Size: Requires a copper line set with 3/8" Liquid and 7/8" Suction connections — NOT included with this unit.
• Outdoor Unit: Outdoor condenser is NOT included. This is an indoor component only; a compatible HVAC Mirage outdoor condenser must be purchased separately.
• Mounting Hardware: Mounting bracket/hardware is NOT included.
• Professional Installation: A state-certified or licensed HVAC technician must perform installation. DIY installation voids the manufacturer's warranty.

Pro-Installer Tip

Field Note: Leaking flare connections are the leading cause of refrigerant loss, premature compressor failure, and E1 communication error codes on concealed ducted systems. Using an Eccentric Flaring Tool and a calibrated Digital Torque Wrench to tighten flare nuts to the manufacturer's specified inch-pounds eliminates this failure mode at the source. Before opening service valves, pull a vacuum below 500 microns and hold for a minimum of 15 minutes to confirm system integrity. Wire the unit using 14/4 AWG stranded wire routed in conduit where required by local code. These steps are not optional — they fulfill EPA Section 608 refrigerant handling mandates and protect the long-term efficiency rating this unit was certified to deliver.

Key Benefits

• Discreet Comfort: Concealed duct design hides the air handler entirely within the ceiling cavity — only supply and return grilles remain visible, preserving architectural aesthetics.
• High Efficiency: Rated at 19.0 SEER2 when properly matched with a compatible condenser, reducing long-term utility costs versus standard efficiency equipment.
• Variable Speed Compatibility: Designed to pair with inverter-driven outdoor units for precise, modulating temperature control and quiet operation.
• Flexible Zoning: Suitable for single-zone dedicated applications or as one head in a compatible multi-zone system.
• Low-GWP Refrigerant Ready: Pre-charged with R-454B; verify compatibility with your specific outdoor condenser for any future low-GWP refrigerant transitions.

Technical Specifications

Compatibility & Fitment

• Compatible with: Dedicated 208/230V, 60Hz, single-phase electrical circuits.
• Compatible with: HVAC Mirage Concealed Ducted Series outdoor condensers (verify AHRI-certified matched pair by model number before purchase).
• NOT Compatible with: 115V-only circuits — do not attempt to connect to a standard 115V household outlet or circuit.
• NOT Included: Outdoor condenser unit — must be purchased separately.
• NOT Included: Refrigerant line set — purchase a copper line set with 3/8" Liquid and 7/8" Suction connections separately.
• NOT Included: Mounting bracket or hanging hardware.

Frequently Asked Questions

Is professional installation required to keep the warranty valid, or is this a true DIY kit?

Professional installation is required. This is not a DIY kit. Flare fittings must be torqued to factory specifications using a Digital Torque Wrench, and a vacuum must be held below 500 microns before opening service valves. A licensed HVAC professional must perform the installation to maintain the 7-Year Compressor / 5-Year Parts Limited Warranty.

Is the line set included, and if not, what size do I need to buy?

The line set is NOT included. You will need a copper line set with a 3/8" Liquid line and a 7/8" Suction line connection. Purchase these separately from your HVAC supplier or distributor.

Is this a complete mini split system?

No. The DGFH121C is an indoor ducted air handler component only. It must be matched with a compatible HVAC Mirage outdoor condenser unit to form a complete, operational mini split system.

What voltage circuit does this unit require?

This unit requires a dedicated 208/230V, 60Hz, single-phase circuit. It is NOT compatible with 115V-only circuits. Verify your electrical panel capacity before purchase.

Compliance & Warranty

Installation must be performed by a state-certified or licensed HVAC professional to validate the manufacturer's 7-Year Compressor / 5-Year Parts Limited Warranty. DIY installation voids warranty coverage. All refrigerant handling during installation and service must comply with EPA Section 608 regulations. The R-410A refrigerant in this unit is factory pre-charged; any field addition or recovery must be performed by an EPA 608-certified technician.