Carrier 53DS900118 Condensing Pump

The Carrier 53DS900118 Condensing Pump is a professional-grade 230V condensate removal kit engineered specifically for ductless mini-split fan coils and high-wall units where gravity drainage is unavailable. This two-part accessory kit includes a compact pump assembly and a secondary magnetic float detection unit designed for precise fluid level management. With a 10-foot suction lift and a 230VAC 60Hz power rating, this HVAC condensate pump ensures reliable moisture extraction to prevent overflow and secondary water damage in ductless split systems. The integrated safety overflow switch features normally closed (NC) dry contacts rated at 8A/250V, allowing contractors to wire the pump as a system shutdown device for fail-safe protection. The kit is supplied with all necessary hardware for installation, including a transparent suction tube, low-voltage power cable, and wall-mounting brackets, providing a low-profile solution for critical condensate management in residential and commercial cooling-only or heat pump applications.

• Ductless System Compatibility: Specifically designed to fit Carrier, Bryant, and Payne mini-split units where space is a premium.
• High Lift Performance: Provides up to 10 feet of vertical suction, allowing for flexible mounting locations relative to the fan coil.
• Integrated Safety Logic: Features a magnetic float switch with an optional alarm contact to prevent cabinet overflow during condensate pump failure.
• Quiet Operation: The pump assembly is sound-shielded to maintain the low-decibel performance expected of premium ductless cooling systems.
• Complete Install Kit: Includes 16-foot discharge tubing, rubber elbows, wire ties, and adhesive for a clean, technician-ready setup.

Can this pump be used with 115V systems?
No, this specific model is rated for 230VAC 60Hz. For 115V applications, the 53DS-900---117 variant is typically required.

Where should the detection unit be mounted?
The detection unit must be mounted horizontally and is usually installed behind the fan coil or inside the internal piping space to accurately sense water levels before they reach the drain pan rim.

What is the purpose of the NC dry contacts?
These contacts are used to break the communication or power circuit to the indoor unit. If the pump fails or the line clogs, the switch opens, shutting down the system to prevent water from leaking onto the customer's floor or walls.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.