Contents General ..............................4 Application areas ............................. 4 1.1.1 Explosion-proof approvals ........................4 1.1.2 Particular comments on the use of explosion-proof pumps in explosive zones........4 Technical data ............................4 1.2.1 Nameplate ............................... 4 Safety ..............................5 Transport ..............................5 Electrical connection ..........................
In the event that the pump is to be operated in explosive atmospheres, using a variable speed drive, please contact your local Sulzer representative for technical advice regarding the various Approvals and Standards concerning thermal overload protection.
Safety The general and specific health and safety guidelines are described in detail in the ”Safety Instructions for Sulzer Products Type ABS” booklet. If anything is not clear or you have any questions as to safety make certain to contact the manufacturer Sulzer. Transport During transport the pump should not be dropped or thrown. The unit must never be raised by the power cable.
Temperature monitoring (PTC thermistor) Thermal sensors protect the motor from overheating. Thermal protection is in accordance with DIN 44082. PTC relays for use in control panels must also be in accordance with this standard. Bearing temperature monitor (optional) PTC thermistor bearing monitor versions of AFC pumps include thermal protection in accordance with DIN 44082.
Checking direction of rotation When three phase units are being commissioned for the first time and also when used on a new site, the direction of rotation must be carefully checked by a qualified person. When checking the direction of rotation, the pump should be secured in such a manner that no danger to personnel is caused by the rotating impeller, or by the resulting air flow. Do not place your hand into the hydraulic system! The direction of rotation should only be altered by a qualified person. When carrying out the direction of rotation check as well as when starting the unit pay attention to the START REACTION.
A coolant change is only necessary when carrying out repair work or if the inspection lamp lights up. The 70% water and 30% propylene glycol coolant is frost resisting down to -15°C / 5°F. In case of extreme ambient temperatures below -15°C / 5°F (e.g. during transport, storage or if the pump is out of duty) the cooling liquid must be drained. Otherwise the pump may be damaged. Please contact your Sulzer consultant! Venting of the volute We strongly recommend that AFC pumps are vented back into the sump by means of the drilled and tapped hole provided in the volute.
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