Ice-O-Matic GEM1856 Service And Installation Manual

Ice-O-Matic GEM1856 Service And Installation Manual Manual pdf 23 page image

GEM Models A/W Operation: PerformancePage 17Beginning at the compressor, the refrigerant is compressed into a high temperature gas. The discharge linedirects this gas to the condenser. At the condenser (air or water cooled) the gas is cooled by either air orwater and then it condenses into a liquid.This high pressure liquid then goes through the liquid line to the expansion valve. The thermostatic expansionvalve meters liquid refrigerant into the evaporator, the volume of liquid refrigerant depending upon thetemperature of the evaporator.At the evaporator, the refrigerant enters an area of relatively low pressure, where it can easily “boil off” orevaporate. As it evaporates, it absorbs heat from the evaporator and whatever is in contact with it (such aswater inside it). After the evaporator, the refrigerant, now a low pressure vapor, goes through the suction lineback to the compressor, where the cycle is repeated.Typical Low Side Pressure:Air Cooled: 34-38 PSIG Water Cooled: 32 PSIGTypical Discharge Pressure:Air Cooled: 220-275 PSIG Water Cooled: 245 PSIGTypical Compressor Amp Draw:GEM0650 A&W 115/60/1 8-9 Amps GEM0655 A&W 230/50/1 5-7 AmpsGEM0956 A&W 208-230/60/1 4-5 Amps GEM0955 A&W 230/50/1 4-5 AmpsGEM1256 A&W 208-230/60/1 5-6 Amps GEM1855 Air 230/50/1 4-5 AmpsGEM1856 Air 208-230/60/1 4-5 AmpsTypical Auger Drive Motor Amp Draw:GEM0650 A&W 115/60/1 3.1 to 3.8 Amps GEM0655 A&W 230/50/1 1.6 to 3.8 AmpsGEM0956 A&W 208-230/60/1 1.6 to 1.8 Amps GEM0955 A&W 230/50/1 1.6 to 3.8 AmpsGEM1256 A&W 208-230/60/1 1.6 to 1.8 Amps GEM1855 Air 230/50/1 1.6 to 3.8 AmpsGEM1856 Air 208-230/60/1 1.6 to 1.8 AmpsExpansion Valve Superheat: 6-8 degreesHigh Pressure Cut Out- Automatic Reset: 450 PSIGLow Pressure Cut Out- Automatic Reset: 15 PSIGRefrigerant Charge: R404AGEM0650 GEM0655Air Cooled: 24 ounces Air Cooled: 24 ouncesWater Cooled: 19 ounces Water Cooled: 19 ouncesGEM0956 GEM0955Air Cooled: 30 ounces Air Cooled: 30 ouncesWater Cooled: 22 ounces Water Cooled: 22 ouncesGEM1256Air Cooled: 36 ounces GEM1855Water Cooled: 24 ounces Air Cooled 30 ouncesGEM1856Air Cooled 30 ounces