21 Air Conditioning
TTP B1-L3 ATA21 Beech 90 Series B2-L3 Air Conditioning LJ-1 through LJ-501 consists of an 80,000 BTU com b ustion heater and a 16,000 BTU refri g erat i v e air cooler w orking through a cabin temperature control b o x maintain cabin comfo r t. Cabin heat m a y be supplemented b y electric heat. The air conditioner unit is electrical l y dr i v en, has a capa c ity of 16,000 BTU and uses a refrigerant g as. LJ-106 3 an d afte r , an d LA- 2 an d afte r shar e th e sam e e n vironmenta l design , contro l an d operation. Air Conditioning The v apo r - c ycle ai r -conditioning system is in the nose of the aircraft. The compressor is moto r -dr i v en through t w o V -belts in the left side of the nose. Refrig- erant R-134a is used on aircraft from LJ-1417, and refrigerant R-12 is used on aircraft through LJ...