Bosch CL048‑1VTC‑LLT‑PUA 4‑Ton Water‑Source Heat Pump

The CL048‑1VTC‑LLT‑PUA is part of Bosch’s FHP / CL series of water‑source heat pumps, built for demanding HVAC applications in commercial and residential buildings using water or ground loop systems. Designed with a vertical cabinet layout and left‑side water loop return (LLT), this 4‑ton unit delivers robust heating and cooling performance while maintaining a service‑friendly design.

Its features include a swing‑out electrical box and slide‑out blower module for convenient access during maintenance, along with vibration-isolating sound insulation that helps reduce operating noise. The unit is constructed from galvanized steel with internal insulation to resist corrosion and improve thermal integrity. A built-in water coil freeze protection system safeguards the unit in colder water loop conditions.

With compatibility for ECM blower options (constant torque or constant airflow), the CL048 model offers flexibility to meet different ducting or airflow requirements. The design meets or exceeds ASHRAE 90.1 efficiency standards, making it suitable for retrofits, new construction, or replacement projects aiming for dependable, efficient operation over the long term.