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Carrier
1 Ton Water Source Heat Pump
Carrier Horizontal, Left Hand Return, Copper Coil, R-454B | 50WCA012LBA3BA-A
$3,471.99
A 1 ton water-source heat pump is the smallest size — a compact, quiet unit for conditioning a single zone like an apartment, condo, or office served by a shared building water loop. Because it trades heat with water rather than outdoor air, it delivers steady efficiency in a small package with no outdoor equipment.
4 products
Carrier
Carrier Horizontal, Left Hand Return, Copper Coil, R-454B | 50WCA012LBA3BA-A
Carrier
Carrier Horizontal, Right Hand Return, Copper Coil, R-454B | 50WCA012RBA3BA-A
Carrier
Carrier Vertical, Left Hand Return, Copper Coil, R-454B | 50WCE012FBA3BA-A
Carrier
Carrier Vertical, Right Hand Return, Copper Coil, R-454B | 50WCE012EBA3BA-A
In multi-unit buildings, a small water-source heat pump in each zone connects to a common water loop, giving every space independent heating and cooling while the building manages the loop centrally. At 1 ton, these units fit closets and ceilings, run quietly, and let one tenant heat while another cools.
Planning per-zone units on a building loop? We'll help match 1 ton units to your design →
In single zones on a shared building loop — apartments, condos, hotel rooms, and small offices. Each unit conditions its own space while the building maintains the common water loop.
12,000 BTU per hour of capacity, though actual output depends on the entering water temperature and loop flow rate.
No. Water-source heat pumps install indoors and exchange heat with the water loop, so there's no outdoor condenser for each zone — one reason they're common in multi-unit buildings.
Yes. On a shared loop, each unit runs independently, so different zones can heat or cool at the same time — the loop absorbs and supplies heat as needed.