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Carrier
3.5 Ton Water Source Heat Pump
Carrier Vertical, Left Hand Return, Copper Coil, R-454B | 50WCE042FBA3BA-A
$4,694.99
A 3.5 ton water-source heat pump delivers 42,000 BTU for a larger zone or a bigger home on a geothermal loop. Many buyers at this size are replacing an existing unit on an established loop — which makes matching the new unit to that loop the main task.
2 products
When the loop is already in the ground or the building, you're fitting the new 3.5 ton unit to conditions that are set: the loop's temperature range and available flow. Confirm the replacement's rated capacity and required GPM line up with what the loop delivers, and check the connections and controls match. A good like-for-like swap restores performance without touching the loop itself.
Replacing a unit on an existing loop? We'll help you match a 3.5 ton to it →
Usually yes. If the new unit's capacity, required flow, and connections match the existing loop's conditions, it's a straightforward swap that restores performance without loop work.
The unit's rated capacity and required GPM against what the loop delivers, plus the physical connections and control compatibility. The loop temperature range is fixed, so the unit must suit it.
A larger zone or bigger home on a loop — around 42,000 BTU, adjusted for the loop's entering water temperature and flow.
Often. Newer units frequently offer better EER/COP at the same loop conditions, so a like-for-like capacity swap can still lower energy use.
