TrimLine Series NPT33Air-Cooled Panel-Mounted Air Conditioners

The TrimLine Series NPT33 is an air-cooled, panel-mounted air conditioning unit designed to maintain precise temperature and humidity control in industrial electrical enclosures while preserving the integrity of sensitive electronic components. This closed-loop cooling system isolates the enclosure interior airflow from ambient conditions, preventing unconditioned air from infiltrating the protected compartment and ensuring consistent performance regardless of external environment.

The NPT33 incorporates a built-in condensate evaporator that eliminates the need for manual condensate drainage under normal operating conditions, significantly reducing maintenance requirements. An overflow condensate drain fitting and hose are included as a safety measure for applications in extremely high-humidity environments or where enclosures may be exposed to moisture ingress. The unit features an electronic thermostatic low-temperature control thermostat that prevents over-cooling while optimizing energy consumption, complemented by a high-pressure limiter switch and condenser impeller controller for enhanced system protection and reliability.

Construction meets rigorous standards with full gasket sealing throughout to maintain NEMA 12 and 3R Enclosure Ratings in compliance with UL50, ensuring leakproof operation in demanding industrial settings. The multi-layer corrugated aluminum filter with aluminum frame design captures contaminants before they reach internal components, extending equipment life and performance; replacement filters are readily available through Kooltronic's online spare parts catalog. The NPT33 utilizes R410a refrigerant, an HFC with zero ozone depleting potential, meeting environmental standards without compromising cooling efficiency. All units carry full UL/CUL listing for code compliance and safety assurance.