TrimLine Series NP28Air-Cooled Panel-Mounted Air Conditioners

The TrimLine Series NP28 is an air-cooled, panel-mounted air conditioning system engineered to maintain precise temperature control and environmental integrity within industrial electrical enclosures. Built with a heavy-duty steel shell featuring a baked powder finish in ANSI 61 gray--with custom color options available--this unit delivers robust construction suited for demanding operational environments while maintaining a professional appearance.

The closed-loop cooling design isolates the enclosure interior airflow system from ambient conditions, ensuring that cool, dehumidified air remains protected within the sensitive component compartment without risk of ambient air infiltration. A built-in condensate evaporator eliminates the need for manual condensate drainage under normal operating conditions, with overflow drain fitting and hose included for installations where humidity levels may exceed standard thresholds. The system utilizes environmentally responsible CFC-free R134a refrigerant and features epoxy-coated condenser and evaporator coils rated to withstand 1000 hours of salt spray per ASTM B 117, providing extended protection in moderately corrosive environments. Multi-layer aluminum filter construction captures airborne contaminants while maintaining system efficiency, with replacement filters readily available.

The NP28 incorporates intelligent operational safeguards including a compressor short cycle protector that prevents damage from frequent starts caused by low heat loads, power interruptions, or solar gain--significantly extending compressor life in variable-load applications. An optional low ambient kit maintains sufficient operating pressures when temperatures drop to 0F, making this unit suitable for year-round outdoor deployment. All models feature programmable thermostat and temperature alarm functions for customizable performance and proactive monitoring. Fully gasketed construction maintains NEMA 12 rating compliance per UL 50, and the unit carries full UL/CUL listing for regulatory compliance across all standard applications.