Manitowoc Q450 Service Technician's Handbook

Also see for Marine Q 1000: Use and care manual Installation instructions Service manual

Contents

Manitowoc Q450 Service Technician's Handbook Manual pdf 134 page image

ñ124ñQ320 Series - Self-Contained Air-CooledCharacteristics may vary depending on operating conditions.CYCLE TIMESFreeze Time + Harvest Time = Total Cycle Time24 HOUR ICE PRODUCTIONOPERATING PRESSURESAir Temp.EnteringCondenser∞F/∞CFreeze TimeHarvestTimeTimes in minutesWater Temperature ∞F/∞C50/10.0 70/21.1 90/32.270/21.1 12.2-13.9 13.1-14.9 14.2-16.21-2.580/26.7 13.6-15.5 14.8-16.8- 16.1-18.490/32.2 16.1-18.4 17.7-20.2 19.7-22.3100/37.8 19.7-22.3 22.0-25.0 25.0-28.3Air Temp. EnteringCondenser ∞F/∞CWater Temperature ∞F/∞CBased on average ice slab weight of 2.94 - 3.31 lb.50/10.0 70/21.1 90/32.270/21.1 310 290 27080/26.7 280 260 24090/32.2 240 220 200100/37.8 200 180 160Air Temp.EnteringCondenser∞F/∞CFreeze Cycle Harvest CycleDischargePressurePSIGSuctionPressurePSIGDischargePressurePSIGSuctionPressurePSIGSuction pressure drops gradually throughout the freeze cycle50/10.0 200-250 50-36 150-180 75-9070/21.1 200-250 50-36 160-190 80-10080/26.7 220-280 50-36 170-200 90-11090/32.2 230-320 54-38 180-220 90-120100/37.8 270-360 56-40 200-250 95-140110/43.3 280-380 58-42 210-260 95-150