Description
MRCOOL Olympus 9K BTU 3/4 Ton Ducted Air Handler ONLY — DUCT-09HP-230B-O
Premium Ceiling-Integrated Ducted Mini Split Indoor Unit
The MRCOOL Olympus 9K BTU 3/4 Ton Ducted Air Handler (DUCT-09HP-230B-O) is a professional-grade ceiling-integrated indoor unit designed for ducted mini split installations. As part of the Olympus series — MRCOOL's highest-tier ductless line — this ducted air handler delivers powerful, efficient heating and cooling for spaces up to 350 square feet while maintaining a completely concealed, flush-ceiling appearance.
The ducted design makes it ideal for applications where a wall-mounted unit is not desirable — such as open-plan living areas, commercial spaces, or renovations where ductwork can be routed through ceilings. Factory pre-charged with R-454B refrigerant, this unit meets current environmental standards and pairs with any compatible Olympus condenser for a complete, high-performance split system.
Technical Specifications
| Specification | Value |
|---|---|
| Model / SKU | DUCT-09HP-230B-O |
| Series | Olympus Duct |
| Type | Air Handler ONLY — Ducted (Ceiling-Integrated) |
| Capacity | 9,000 BTU |
| Tonnage | 3/4 Ton |
| Coverage Area | 250–350 sq ft |
| Refrigerant | R-454B |
| Voltage | 208-230V / 60Hz |
| Max Breaker | 15A |
| Min Circuit Ampacity | 3A |
| Mount Type | Ducted (Ceiling) |
| Dimensions | 27.56" W x 22.05" D x 8.27" H |
| Net Weight | 44.0 lbs (20.0 kg) |
| Liquid Line | 1/4" |
| Suction Line | 3/8" |
| WiFi | No |
| Remote Control | Included (wired + handheld) |
| Certifications | UL Listed, ETL Listed, CSA Listed |
| Warranty | 5-Year Parts |
Product Tips
- Air Handler ONLY: This is the indoor ducted unit only. A compatible Olympus condenser is required to complete the system.
- Professional Installation Required: Ducted mini split installation requires a licensed HVAC contractor. Proper ductwork design, vacuum, and refrigerant charging are essential.
- Ceiling Integration: Designed for ceiling-flush installation with short duct runs. Not suitable for long-run central duct systems.
- R-454B Refrigerant: Factory pre-charged with R-454B. Ensure your technician is certified for R-454B handling.
- Wired Controller Included: Comes with both a wired wall controller and handheld remote for flexible operation.
Frequently Asked Questions
Is this a complete system or just the air handler?
This is the ducted air handler (indoor unit) only. You will need a compatible Olympus condenser (outdoor unit) to complete the system.
What condenser is compatible?
Compatible with MRCOOL Olympus single-zone condensers (O-XX-HP-C series) and multi-zone condensers (MULTI series). Verify BTU compatibility when pairing.
Does this require professional installation?
Yes. Ducted mini split systems require a licensed HVAC technician. Refrigerant handling requires EPA Section 608 certification.
What refrigerant does this use?
Uses R-454B — a next-generation, lower-GWP alternative to R-410A. Factory pre-charged.
What size room can this handle?
The 9K BTU unit is designed for approximately 250–350 sq ft, depending on insulation and climate zone.
Does this unit have WiFi?
No. The Olympus Duct series does not include WiFi connectivity. It uses a wired wall controller and handheld remote for operation.
What electrical requirements are needed?
Requires a dedicated 15A circuit breaker at 208-230V. Minimum circuit ampacity is 3A.
What is the warranty?
5-Year Parts Warranty when registered within 30 days of installation by a licensed HVAC contractor.
Compatible Accessories
- MRCOOL Olympus Single-Zone Condenser (O-XX-HP-C series)
- MRCOOL Olympus Multi-Zone Condenser (MULTI series)
- MRCOOL Non-DIY Line Set
- MRCOOL Condenser Wall Mounting Kit
Need help? Contact us at /contact-us/
Warranty Information
The MRCOOL Olympus Duct Air Handler includes a 5-Year Parts Warranty when registered within 30 days of installation by a licensed HVAC contractor.
