RF1P SeriesFeatures: Front or Bottom Return with aluminum tube and fin coil Flow Check Piston for cooling or heat pump operation Wall-hanging brackets Built in Filter Rack Suitable for R410A or R22 Refrigerants (RF1P Only) AHRI Certified UL Certified Factory Installed 5 kW Heater Kit Dual Voltage Direct Drive Blower with multi-speed motor Thermoplastic Drain Pan with bottom primary and secondary connections Optional Decorative Grill for front return applications Factory Installed Condensate Float Switch which shuts off the outdoor unit in event the condensate pan becomes clogged Engineering Features: The most compact unit design available, all standard heat air handler models only 36' [915 mm]. Rugged wall steel cabinet construction, designed for added strength and versatility. 1.0' foil faced insulation for excellent thermal and sound performance. Four leg blower motor mount. Traditional open wire element design for heat applications. Indoor coil design provides low air side pressure drop, high-performance and extremely compact size. Coils are constructed of aluminum fins and internally grooved aluminum tubing. Molded polymer corrosion resistant condensate drain pan is provided for all indoor coils. Connection point for high voltage wiring is inside the air handler cabinet. Low voltage connection is made on the outside of the air handler cabinet. Concentric knockouts are provided for power connection to cabinet. Installer may pull desired hole size up to 13/8' (35mm)for 7/8' (22 mm) conduit.