GE AF-600 FP Design And Installation Manual

Also see for AF-600 FP Series: Quick installation guide Quick guide Operating instructions Operating instructions Operating instructions

Contents

2.3.2 Cooling and AirflowCoolingCooling can be obtained in different ways, by using thecooling ducts in the bottom and the top of the unit, bytaking air in and out the back of the unit or by combiningthe cooling possibilities.Duct coolingA dedicated option has been developed to optimize instal-lation of IP00/chassis drive types in Rittal TS8 Unitsutilizing the fan of the adjustable frequency drive forforced air cooling of the backchannel. Please consult GEfor more details.The air out of the top of the enclosure could but ductedoutside a facility so the heat loses from the backchannelare not dissipated within the control room reducing air-conditioning requirements of the facility.Please contact GE for more information.Back coolingThe backchannel air can also be ventilated in and out theback of a Rittal TS8 Unit. This offers a solution where thebackchannel could take air from outside the facility andreturn the heat losses outside the facility thus reducing air-conditioning requirements.CAUTIONA door fan is required on the enclosure to remove theheat losses not contained in the backchannel of the driveand any additional losses generated from othercomponents installed inside the enclosure. The totalrequired air flow must be calculated so that theappropriate fans can be selected. Some enclosuremanufacturers offer software for performing thecalculations (i.e., Rittal Therm software). If the drive is theonly heat generating component in the enclosure, theminimum airflow required at an ambient temperature of113° F [45°C] for the 43 and 44 unit size drives is 230 cfm(391 m3 /h). The minimum airflow required at an ambienttemperature of 113° F [45°C] for the 52 drive is 460 cfm(782 m3 /h).AirflowThe necessary airflow over the heatsink must be ensured.The flow rate is in Table 2.2.Unit Size protection Unit Size Door fan(s) / Top fan airflow Heatsink fan(s)IP21 / NEMA 1IP54 / NEMA 1241 and 42 100 cfm (170 m3 /h) 450 cfm (765 m 3 /h)51 350 HP @ 460 V, 500 & 550HP @ 690 V200 cfm (340 m3 /h) 650 cfm (1105 m3 /h)51 450–550 HP @ 460V, 650–750HP @ 690 V200 cfm (340 m3 /h) 850 cfm (1445 m3 /h)IP21 / NEMA 1 61, 62, 63 and 64 412 cfm (700 m3 /h)* 580 cfm (985 m 3 /h)*IP54 / NEMA 12 61, 62, 63 and 64 309 cfm (525 m3 /h)* 580 cfm (985 m 3 /h)*IP00 / Chassis 43 and 44 150 cfm (255 m3 /h) 450 cfm (765 m 3 /h)52 350 HP @ 460 V, 500 & 550HP @ 690 V150 cfm (255 m3 /h) 650 cfm (1105 m3 /h)52 450–550 HP @ 460 V, 650–750 HP @ 690 V150 cfm (255 m3 /h) 850 cfm (1445 m3 /h)* Airflow per fan. Unit Sizes 6X contain multiple fans.Table 2.2 Heatsink Air FlowInstallation AF-600 FP Design and Installation Guide2-2 DET-768A22