ICE MACHINES Q-Model Service Manual

Section 7Refrigeration SystemQ1300 SERIESSelf-Contained Air-CooledNOTE: These characteristics may vary depending onoperating conditions.Cycle TimesFreeze Time + Harvest Time = Total Cycle TimeQ1300 SERIESSelf-Contained Water-CooledNOTE: These characteristics may vary depending onoperating conditions.Cycle TimesFreeze Time + Harvest Time = Total Cycle TimeAir Temp.EnteringCondenser°F/°CFreeze TimeWater Temperature °F/°C50/10.0 70/21.1 90/32.2HarvestTimeAir Temp.Around IceMachine°F/°CFreeze TimeWater Temperature °F/°C50/10.0 70/21.1 90/32.2HarvestTime70/21.1 9.4-10.5 9.9-11.1 10.9-12.270/21.1 9.0-10.1 9.8-10.9 11.4-12.680/26.7 9.9-11.1 10.6-11.8 11.6-12.990/32.2 11.0-12.3 11.5-12.8 12.8-14.2100/37.8 12.3-13.7 13.2-14.7 14.7-16.31-2.580/26.7 9.1-10.1 9.8-11.0 11.6-12.990/32.2 9.2-10.3 10.0-11.2 12.0-13.3100/37.8 9.4-10.5 10.1-11.3 12.2-13.61-2.5Times in minutesTimes in minutes24 Hour Ice Production24 Hour Ice ProductionAir Temp.Water Temperature °F/°CEnteringCondenser 50/10.0 70/21.1 90/32.2°F/°C70/21.1 1320 1260 116080/26.7 1260 1190 110090/32.2 1150 1110 1010100/37.8 1040 980 890Based on average ice slab weight of 10.0- 11.0 lbRegular cube derate is 7%Air Temp.Water Temperature °F/°CAround IceMachine 50/10.0 70/21.1 90/32.2°F/°C70/21.1 1370 1280 112080/26.7 1360 1270 110090/32.2 1340 1250 1070100/37.8 1320 1240 1050Based on average ice slab weight of 10.0 - 11.0 lbRegular cube derate is 7%Operating PressuresAir Temp.EnteringCondenser°F/°CFreeze CycleDischargePressurePSIGSuctionPressurePSIGHarvest CycleDischargePressurePSIGSuctionPressurePSIG50/10.0 220-280 40-20 140-170 65-8070/21.1 220-280 40-20 145-170 70-8080/26.7 220-280 42-22 150-185 70-8090/32.2 245-300 48-26 160-190 70-85100/37.8 275-330 50-26 160-210 70-90110/43.3 280-360 52-28 165-225 75-100Suction pressure drops gradually throughout the freeze cycleCondenserWaterConsumptionOperating Pressures90/32.2 Air TemperatureAround Ice MachineWater Temperature °F/°C50/10.0 70/21.1 90/32.2Gal/24 hours 1150 2220 7400Water regulating valve set to maintain 240 PSIG discharge pressureAir Temp.Around IceMachine°F/°CFreeze CycleDischargePressurePSIGSuctionPressurePSIGHarvest CycleDischargePressurePSIGSuctionPressurePSIG50/10.0 235-245 40-18 150-180 70-8070/21.1 235-245 40-18 150-180 70-8080/26.7 235-245 40-20 150-180 70-8090/32.2 235-250 42-20 150-180 70-80100/37.8 235-255 44-20 150-180 70-80110/43.3 240-265 46-20 150-180 70-80Suction pressure drops gradually throughout the freeze cyclePart No. 80-1100-3 7-43