ICE MACHINES Q-Model Service Manual

Section 7Refrigeration SystemQ600 SERIESSelf-Contained Water-CooledNOTE: These characteristics may vary depending onoperating conditions.Cycle TimesFreeze Time + Harvest Time = Total Cycle TimeQ600 SERIESRemoteNOTE: These characteristics may vary depending onoperating conditions.Cycle TimesFreeze Time + Harvest Time = Total Cycle TimeAir Temp.Around IceMachine°F/°CFreeze TimeWater Temperature °F/°C50/10.0 70/21.1 90/32.2HarvestTimeAir Temp.EnteringCondenser°F/°CFreeze TimeWater Temperature °F/°C50/10.0 70/21.1 90/32.2HarvestTime70/21.1 7.4-8.7 8.2-9.7 9.5-11.280/26.7 7.5-8.9 8.4-9.9 9.7-11.490/32.2 7.8-9.2 8.7-10.3 9.9-11.7100/37.8 7.9-9.4 8.9-10.5 10.1-11.9Times in minutes1-2.5-20/-28.9 to70/21.17.9-9.4 8.9-10.5 9.5-11.280/26.7 8.0-9.4 9.0-10.6 9.6-11.390/32.2 8.1-9.5 9.1-10.7 9.7-11.4100/37.8 8.4-9.9 9.5-11.2 10.1-11.9110/43.3 8.9-10.5 10.1-11.9 10.9-12.81-2.524 Hour Ice ProductionTimes in minutesAir Temp.Water Temperature °F/°CAround IceMachine 50/10.0 70/21.1 90/32.2°F/°C70/21.1 670 610 54080/26.7 660 600 53090/32.2 640 580 520100/37.8 630 570 510Based on average ice slab weight of 4.12 - 4.75 lbRegular cube derate is 7%CondenserWaterConsumptionOperating Pressures90/32.2 Air TemperatureAround Ice MachineWater Temperature °F/°C50/10.0 70/21.1 90/32.2Gal/24 hours 600 1250 6800Water regulating valve set to maintain 230 PSIG discharge pressureAir Temp.Around IceMachine°F/°CFreeze CycleDischargePressurePSIGSuctionPressurePSIGHarvest CycleDischargePressurePSIGSuctionPressurePSIG50/10.0 225-235 46-25 140-184 80-10270/21.1 225-235 46-26 148-184 82-10480/26.7 225-235 48-26 154-186 86-10890/32.2 225-240 48-26 154-190 86-108100/37.8 225-245 50-28 162-194 86-112110/43.3 225-250 52-28 165-200 86-115Suction pressure drops gradually throughout the freeze cycle24 Hour Ice ProductionAir Temp.Water Temperature °F/°CEnteringCondenser 50/10.0 70/21.1 90/32.2°F/°C-20/-28.9 to70/21.1630 570 54080/26.7 625 565 53590/32.2 620 560 530100/37.8 600 540 510110/43.3 570 510 480Based on average ice slab weight of 4.12- 4.75 lbRegular cube derate is 7%Ratings with JC0895 condenser, dice or half dice cubesOperating PressuresAir Temp.EnteringCondenser°F/°CFreeze CycleDischargePressurePSIGSuctionPressurePSIGHarvest CycleDischargePressurePSIGSuctionPressurePSIG-20/-28.9 to50/10.0220-250 42-26 152-170 75-10070/21.1 225-260 44-26 155-172 82-10080/26.7 245-265 46-26 156-174 82-10090/32.2 250-265 48-26 157-174 84-100100/37.8 265-295 52-26 158-176 84-100110/43.3 300-335 52-28 158-176 84-105Suction pressure drops gradually throughout the freeze cyclePart No. 80-1100-3 7-39