Birdwell Model BAC Packaged Vertical Cooling/Heating Units ETL Listed 3, 4, 5, 6, 8, 10 Tons Nominal Sizes
These significant features assure ease of installation plus performance and serviceability...
ETL certified by Intertek Testing Services to be in compliance with applicable UL and CSA codes and standards for general purpose or optional Class I or II, Division I or II (in various groups) hazardous locations (condenser section only). Thermostatically controlled expansion valves. High and low refrigerant pressure cut-out switches. Compressor starting relays and capacitors on single phase models. Solid-state time delay relays to prevent short cycling. Frost controls to stop compressor in the event of coil icing due to dirty filters, etc. Permanently lubricated ball bearing condenser fan motors. Service valves with pump-down capability. Entire unit constructed of 16 gauge galvanized paint grip steel.	Units are painted using two coats of Sherwin-Williams Polane® T Polyurethane enamel. Units are fully serviceable from the front. All electrical controls are in one control panel. Evaporator sections are insulated with 1" thick, 1-1/2 lbs. density acoustic insulation. Compressors are mounted on internal and external isolators for whisper quiet operation. Copper condensate drains are trapped and pre-piped to outdoor section eliminating the need for field piping. All service doors are double wall, internally insulated. Units are equipped with refrigerant sight glasses and moisture indicators to aid in servicing. High efficiency compressors, internal pressure relief valves, and crankcase heaters. Condensate drain pans are 16 gauge stainless steel as standard to prevent corrosion.

BAC units are general purpose or hazardous area rated, air cooled, single package, vertical cooling/heating systems is ETL certified by Intertek Testing Services to be in conformance with applicable UL and CSA codes and standards. The standard installation is with the six inch offset through an outside wall with the unit inside the building. The units may also be installed outside the structure with the unit face flush with the inside wall surface. Unit options include electric heat, humidifier, de-humidifiaction reheat control, air distributor, Heresite baked phenolic or epoxy coated coils, stainless steel cabinet and programmable thermostat. Water cooled BAC-WC units are available as an option. Operating voltages available are 208/230-1-60, 208/230-3-60 or 460-3-60. Unit sizes are 3, 4, 5, 6, 8 and 10 tons. Units are also available for 50 Hz operation.