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If a McQuay vertical water source heat pump is standing in one of your mechanical closets right now, it’s almost certainly a legacy unit — McQuay was folded into Daikin Applied years ago, and its floor-standing vertical WSHPs are still running in schools, hospitals, and office buildings across Ontario. 4Most Energy repairs, services, and sources parts for existing McQuay vertical units, and supplies and installs their modern factory replacement — the Daikin SmartSource® line — when a unit is beyond economical repair.

If a McQuay horizontal water source heat pump is suspended above one of your ceiling tiles or panels right now, it’s almost certainly a legacy unit — McQuay was folded into Daikin Applied years ago, and its ceiling-hung horizontal WSHPs are still running in offices, retail spaces, and condominium suites across Ontario. 4Most Energy repairs, services, and sources parts for existing McQuay horizontal units, and supplies and installs their modern factory replacement — the Daikin SmartSource® line — when a unit is beyond economical repair.

The Daikin SmartSource® Compact horizontal water source heat pump is a ceiling-suspended replacement for aging Carrier, Keeprite, Lennox, McQuay, and Daikin units in commercial and condo buildings.
Available in single-stage or two-stage configurations from 7,000 to 70,000 Btuh, it delivers dependable heating and cooling with low-GWP R-32 refrigerant. 4Most Energy supplies, installs, repairs, and services these systems.