Description
The Comfort-aire MBR072BKC30C01S is a 6-ton, 14.1 EER water source heat pump package unit built for commercial and multi-family buildings that already have a hydronic loop. If you're replacing an aging WSHP or spec'ing a new installation in a high-rise, hotel corridor, or office build-out, this unit handles both heating and cooling from a single horizontal cabinet — no outdoor condenser, no refrigerant line sets running through walls. It ships new at 230V, 3-phase, with a belt-driven blower and a right-return, straight-supply air configuration that fits the tight mechanical closets and above-ceiling spaces these applications demand.
Key Features
- 14.1 EER Efficiency: Delivers strong energy performance on a water loop, which keeps operating costs down in buildings running the unit year-round.
- 6-Ton Capacity: Covers large commercial zones — typically 2,400–3,000 sq ft of conditioned space — in a single self-contained package.
- Belt-Driven Blower: Lets you adjust pulley ratios to match static pressure requirements in ducted commercial systems without swapping the motor.
- Horizontal Configuration: Right-return, straight-supply layout installs above ceilings or in horizontal mechanical chases without field-fabricated transitions.
- Water Source Heat Pump Design: Connects to a shared hydronic loop, eliminating the outdoor condenser and making it the right call where rooftop or ground-level equipment isn't an option.
- 5-Year Compressor Warranty: Comfort-aire backs the compressor for five years and parts for one year, giving building owners and contractors a documented coverage baseline at the time of sale.
Is this the right unit for your project?
At 6 tons, the MBR072BKC30C01S is sized for large open-plan offices, hotel suites served by a central water loop, classroom clusters, or multi-tenant commercial spaces in the 2,400–3,000 sq ft range — use that as a rule of thumb, not a guarantee. Actual sizing depends on envelope, occupancy, ventilation loads, and loop entering water temperature; a Manual J or equivalent commercial load calc confirms fit. Undersizing a 6-ton zone means the unit runs constantly and still can't hold setpoint. Oversizing causes short cycling, humidity problems, and premature wear. This unit is also 230V, 3-phase — it belongs in a building with 3-phase power infrastructure, not a residential panel.
Water source heat pump vs. split system or rooftop unit
A water source heat pump like the MBR072BKC30C01S makes sense when the building already has a central hydronic loop — the heat rejection and heat addition happen at the loop, not outside. That removes the outdoor condenser, eliminates refrigerant line sets between floors, and keeps mechanical equipment off the roof or ground. A conventional split system or rooftop unit is simpler for standalone buildings or smaller commercial applications where a loop doesn't exist and the install cost of building one isn't justified. WSHPs shine in multi-story commercial and hospitality projects where dozens of units share a single loop and loop fluid management is already part of the building's mechanical design.
Where it fits best
- Multi-story office buildings with a central hydronic loop
- Hotel guest corridors and suite-by-suite zoning
- School and university classroom clusters
- Multi-tenant commercial build-outs requiring individual zone control
- Renovation projects replacing older horizontal WSHPs in above-ceiling mechanical spaces
Installation & what else you’ll need
The MBR072BKC30C01S requires a 230V, 3-phase power supply — confirm electrical service before ordering. You'll need supply and return hydronic loop connections sized and balanced to the unit's flow requirements. The belt-driven blower means you'll verify and set pulley alignment and belt tension at startup. For horizontal above-ceiling installs, plan for condensate drain routing and adequate access clearance for filter service and belt adjustment. Duct connections follow the right-return, straight-supply orientation — field transitions or flexible connectors bridge to your existing ductwork. A licensed HVAC mechanical contractor should handle this installation; refrigerant work requires EPA Section 608 certification.
Frequently Asked Questions
What is the EER rating of the Comfort-aire MBR072BKC30C01S?
The MBR072BKC30C01S is rated at 14.1 EER. That rating reflects efficiency under water source heat pump test conditions and applies to both cooling and heating operation on a shared hydronic loop. Actual performance depends on entering water temperature and system design.
How many tons is the Comfort-aire MBR072BKC30C01S?
The MBR072BKC30C01S is a 6-ton unit. That's 72,000 BTU of capacity, suited to large commercial zones. A proper load calculation — Manual J or equivalent — should confirm it's the right size before you order.
What voltage and phase does the MBR072BKC30C01S require?
It runs on 230V, 3-phase power. This is a commercial unit designed for buildings with 3-phase electrical infrastructure. It will not work on a standard single-phase residential panel, so verify your electrical service before purchasing.
What is a water source heat pump and how does it work?
A water source heat pump transfers heat to or from a shared hydronic loop rather than to outside air. In cooling mode, it rejects heat into the loop. In heating mode, it extracts heat from the loop. It eliminates the outdoor condenser and works well in multi-story commercial buildings where a central loop already exists.
What does belt-driven blower mean on a water source heat pump?
Belt-driven means the motor connects to the blower wheel through a belt-and-pulley system rather than being direct-drive. The advantage is adjustability — you can change pulley sizes to match the airflow to your system's static pressure without replacing the motor.
What warranty comes with the Comfort-aire MBR072BKC30C01S?
Comfort-aire covers the compressor for 5 years and parts for 1 year on the MBR072BKC30C01S. The unit ships new. Always register the equipment with the manufacturer and retain your purchase documentation to keep warranty coverage intact.
White Paper
- Comfort-aire MB Series Product Catalog (Part 1 of 2)
- Comfort-aire MB Series Product Catalog (Part 2 of 2)
- Comfort-aire MB Series Spec Sheet
- Comfort-aire MB Series Installation Manual (Part 1 of 3)
- Comfort-aire MB Series Installation Manual (Part 2 of 3)
- Comfort-aire MB Series Installation Manual (Part 3 of 3)
