Lorentz PSk2 CS-F Series Manual For Installation, Operation, Service page 3

Figures
Figure 1: System layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 2: Controller dimensions for installation . . . . . . . . . . . . . . . . . . . . . . 9
Figure 3: Minimum spacing for wall mounting . . . . . . . . . . . . . . . . . . . . . . 10
Figure 4: Correct controller mounting: direct to the wall . . . . . . . . . . . . . . . . . 10
Figure 5: Correct controller mounting: with back cover . . . . . . . . . . . . . . . . . 10
Figure 6: Wrong controller mounting: without back cover . . . . . . . . . . . . . . . . 10
Figure 7: Weidmüller single and double stage terminals . . . . . . . . . . . . . . . . . 12
Figure 8: Weidmüller clamp cable fixing . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 9: Terminal block, numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 10: Bottom view of PSk2 controller: cable entries and external sockets . . . . . . 14
Figure 11: Mini plug for pump accessories . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 12: Protective earth connection . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 13: Controller grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 14: Grounding cable mounting at controller housing . . . . . . . . . . . . . . . 16
Figure 15: Grounding cable mounting at grounding profile rod . . . . . . . . . . . . . 16
Figure 16: Prevent air locks in pipes . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 17: Avoid sharp 90° elbows and size adaptors . . . . . . . . . . . . . . . . . . 18
Figure 18: Pump handling/lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 19: Technical drawing of adaptor (in mm) . . . . . . . . . . . . . . . . . . . . 21
Figure 20: Adaptor welded on inlet pipeline . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 21: Mounted probe housing . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 22: Mounted water sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 23: HDPE pipe tee-piece . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 24: steel steel flange with adaptor in HDPE pipe . . . . . . . . . . . . . . . . . 22
Figure 25: Water meter installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Figure 26: Pressure sensor installation . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 27: Float switch scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 28: Vent and drain holes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 29: Sun Switch function in PumpScanner . . . . . . . . . . . . . . . . . . . . . 26
Figure 30: Schematic view of an open pump system . . . . . . . . . . . . . . . . . . . 29
Figure 31: Reading NPSH graph, example 1 . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 32: Reading NPSH graph, example 2 . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 33: Reading off the discharge rate according to the pipe diameter . . . . . . . . 34
BERNT LORENTZ GmbH & Co. KG Kroegerskoppel 7, 24558 Henstedt-Ulzburg, Germany, Tel. +49 (0) 4193 7548 - 0, Fax - 29, www.lorentz.de
All specifi cations and information are given with good intent, errors are possible and products may be subject to change without notice. Pictures may
differ from actual products depending on local market requirements and regulations.
Tables
Table 1: Controller packing list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 2: Permitted ambient temperatures . . . . . . . . . . . . . . . . . . . . . . . . . 5
Table 3: Technical data of PSk2 controller . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 4: Controller dimensions for installation . . . . . . . . . . . . . . . . . . . . . . . 9
Table 5: Terminal explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 6: Mini plug sockets description . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 7: Motor cable resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Table 8: Inspection overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 9: Atmospheric pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 10: Friction loss in Schedule 40 steel pipe with Standard Inside Diameter (SIDR) . . 30
Table 11: Vapour pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 12: Friction loss for valves and fittings - equivalent length of straight pipe . . . . . 31
Table 13: Discharge rate for nominal pipe diameter . . . . . . . . . . . . . . . . . . . 35
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Sun. Water. Life.