Ice Machine High Head Pressure

When this occurs an authorized technician will need to replace the fan motor.

Ice machine high head pressure.

Any suggestions would be appreciated. If the unit cycles off on the high pressure switch a problem exists. The high pressure event occurred about 10 minutes after resetting the machine. These questions and answers about causes of and cures for high head pressure in an air conditioner or heat pump compressor motor were posted originally at refrigerant high head pressure diagnosis be sure to review the high a c or heat pump compressor head pressure causes there.

High discharge pressure affecting low side. When the ice machine isn t producing enough ice or making poor ice look for the potential causes below. You will find however that the average head pressure of a r 22 unit will run from 220 to 230 psig. The headmaster pressure setting will vary depending on the system requirements.

The valves used on hoshizaki ice machines maintain high side pressures of either 190 156 or 140 psig depending on the model. 1 ice weight cycle lb 2 4 2 6 refrigerant charge oz r 404a 11 high pressure cut out cut in psig 400 300. Open high pressure cutout failed fan motor the high pressure cutout could be open from a failed fan motor. The number one reason for high head pressure is reduced heat transfer in the condenser.

Shop manitowoc ice 000003190 valve head pressure. If suction pressure is high you need to eliminate the possible problems in the order listed here and follow appropriate correction measures. The high pressure was very slow to drop after the machine tripped. Single six inch high evaporator ice production lb 24 hr 90 70 280 ice production lb 24 hr 70 50 400 water use gallons ice only 52 water use water cooled condenser only 457 condenser gpm 45of.

Ice production low or poor. The head pressures in an ice machine will vary somewhat with changing ambient conditions. Maybe bad headmaster on remote condenser but it so 500psi on valve. When the machine first came on the pressure jumped to 350psi on the high side and never dropped below 100psi on the low side.

Manitowoc model sd0592n remote condenser r404a got called for no ice checked machine found suction pressure 140 and high pressure 250 no cooling to plate can not figure out what is causing the high pressures. If headmaster replacement is necessary always use a replacement headmaster valve with the correct pressure setting.