Bryant 581B036--072, 581C024--060 Low Charge Cooling, Perfect Humidity System Charging

Low Charge Cooling

Using Cooling Charging Charts, Fig. 51-54 and 59-62, vary refrigerant until the conditions of the charts are met. Note the charging charts are different from type normally used. Charts are based on charging the units to the correct superheat for the various operating conditions. Accurate pressure gauge and temperature sensing device are required. Connect the pressure gauge to the service port on the suction line. Mount the temperature sensing device on the suction line and insulate it so that outdoor ambient temperature does not affect the reading. Indoor-air cfm must be within the normal operating range of the unit.

Perfect Humidity™ System Charging

The system charge for units with the Perfect Humidity adaptive dehumidification system is greater than that of the standard unit alone. The charge for units with this option is indicated on the unit nameplate drawing. Also refer to Fig. 55-58. To charge systems using the Perfect Humidity adaptive dehumidification system, fully evacuate, recover, and recharge the system to the nameplate specified charge level. To check or adjust refrigerant charge on systems using the Perfect Humidity adaptive dehumidification system, charge per Fig. 55-58.

C06139

Fig. 51 ---Cooling Charging Chart,

Standard 581B 036

C06140

Fig. 52 ---Cooling Charging Chart,

Standard 581B 048

C06141

Fig. 53 ---Cooling Charging Chart,

Standard 581B 060

581B,C

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