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TROUBLE DIAGNOSIS ATC-103 C D E F G H I K L M A B ATC Test Reading (VK45DE) Recirculating-to-discharge Air Temperature Table Ambient Air Temperature-to-operating Pressure Table Inside air (Recirculating air) at blower assembly inlet Discharge air temperature at center ventilator ° C ( ° F) Relative humidity % Air temperature ° C ( ° F) 50 - 60 20 (68) 6.0 - 7.4 (43 - 45) 25 (77) 8.9 - 10.6 (48 - 51) 30 (86) 12.5 - 14.6 (55 - 58) 35 (95) 16.7 - 19.4 (62 - 67) 60 - 70 20 (68) 7.4 - 8.7 (45 - 48) 25 (77) 10.6 - 12.2 (51 - 54) 30 (86) 14.6 - 16.7 (58 - 62) 35 (95) 19.4 - 22.1 (67 - 72) Ambient air High-pressure (Discharge side) kPa (kg/cm 2 , psi) Low-pressure (Suction side) kPa (kg/cm 2 , psi) Relative humidity % Air temperature ° C ( ° F) 50 - 70 20 (68) 907 - 1,106 (9.3 - 11.3, 131.5 - 160.4) 192 - 238 (2.0 - 2.4, 27.8 - 34.5) 25 (77) 987 - 1,207 (10.1 - 12.3, 143.1 - 175.0) 210 - 262 (2.1 - 2.7, 30.5 - 38.0) 30 (86) 1,072 - 1,312 (10.9 - 13.4, 155.4 - 190.2) 233 - 284 (2.4 - 2.9, 33.8 - 41.2) 35 (95) 1,168 - 1,425 (11.9 - 14.5, 169.4 - 206.6) 258 - 320 (2.6 - 3.3, 37.4 - 46.4) 40 (104) 1,272 - 1,550 (13.0 - 15.8, 184.4 - 224.8) 288 - 356 (2.9 - 3.6, 41.8 - 51.6) |