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Carrier
4 Ton Water Source Heat Pump
Carrier Vertical, Left Hand Return, Copper Coil, R-454B | 50WCE048FBA3BA-A
$4,697.99
A 4 ton water-source heat pump delivers 48,000 BTU for large zones and light-commercial spaces — a common size in office suites, retail, and multi-unit buildings on a shared loop. At this capacity, the loop's ability to supply flow and reject heat becomes the limiting factor to plan around.
2 products
A bigger unit moves more heat into or out of the loop and needs more water flow to do it. In a building with many units, the loop, pumps, and heat rejection (a cooling tower or ground field) must be sized for the combined demand — a 4 ton unit is a meaningful share of that. Confirm the loop can supply the flow and absorb the load before adding or upsizing.
Adding 4 ton units to a building loop? We'll help you check loop and flow capacity →
In large zones and light-commercial spaces — office suites, retail, and multi-unit buildings on a shared water loop, where a bigger unit conditions a substantial area.
Yes. It moves more heat and needs more water flow than smaller units, so the loop, pumps, and heat rejection must be sized to supply the flow and absorb the load.
48,000 BTU per hour of nominal capacity, with real output depending on entering water temperature and flow.
Only if the loop has the spare capacity. A larger unit is a meaningful share of the loop's total demand, so confirm the pumps and heat rejection can handle it before adding one.
