ICE MACHINES Q-Model Service Manual

Section 7Refrigeration SystemQ800 SERIESRemoteNOTE: These characteristics may vary depending onoperating conditions.Cycle TimesFreeze Time + Harvest Time = Total Cycle TimeQ1000 SERIESSelf-Contained Air-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.EnteringCondenser°F/°CFreeze TimeWater Temperature °F/°C50/10.0 70/21.1 90/32.2HarvestTime-20/-28.9 to70/21.19.5-11.0 10.6-12.2 11.6-13.480/26.7 9.7-11.1 10.8-12.4 11.9-13.690/32.2 9.8-11.3 11.0-12.6 12.1-13.8100/37.8 10.6-12.2 11.9-13.6 13.2-15.1110/43.3 11.9-13.6 13.4-15.4 14.7-16.91-2.570/21.1 9.9-10.6 10.6-11.4 11.3-12.280/26.7 10.2-11.0 11.2-12.0 11.9-12.890/32.2 10.9-11.7 11.9-12.8 12.8-13.7100/37.8 12.1-13.0 13.2-14.1 14.2-15.2Times in minutes1-2.5Times in minutes24 Hour Ice Production24 Hour Ice ProductionAir Temp.Water Temperature °F/°CEnteringCondenser 50/10.0 70/21.1 90/32.2°F/°C-20/-28.9 to70/21.1750 685 63080/26.7 740 675 62090/32.2 730 665 610100/37.8 685 620 565110/43.3 620 555 510Based on average ice slab weight of 5.75- 6.50lbRegular 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 30-22 180-200 65-9070/21.1 225-250 32-22 190-200 70-9080/26.7 240-260 33-22 190-205 70-9090/32.2 255-265 34-22 195-205 70-90100/37.8 275-295 38-24 200-210 70-90110/43.3 280-320 40-26 200-225 75-100Suction pressure drops gradually throughout the freeze cycleAir Temp.Water Temperature °F/°CEnteringCondenser 50/10.0 70/21.1 90/32.2°F/°C70/21.1 980 920 87080/26.7 950 880 83090/32.2 900 830 780100/37.8 820 760 710Based on average ice slab weight of 7.75 - 8.25lbRegular cube derate is 7%Operating PressuresAir Temp.EnteringCondenser°F/°CFreeze CycleDischargePressurePSIGSuctionPressurePSIGHarvest CycleDischargePressurePSIGSuctionPressurePSIG50/10.0 220-280 38-18 135-180 65-9070/21.1 220-280 40-18 140-180 70-9080/26.7 225-280 42-20 140-180 70-9590/32.2 260-295 42-22 150-200 80-100100/37.8 300-330 42-24 210-225 80-100110/43.3 320-360 44-24 210-240 85-120Suction pressure drops gradually throughout the freeze cyclePart No. 80-1100-3 7-41