2.6.3 Return water flow switch settingIntroductionThe mechanical flow switch is pre-set at delivery to 8 liters/min at 0.2 MPa waterpressure.If the water pressure exceeds 0.2 MPa, the setting cannot be done with thegraduation on the window name plate, as the pressure affects the measured flow.Please perform the setting as described in the following procedure.SettingsThe procedure below details how to set the mechanical flow switch.NoteActionOpen the solenoid valve on the water inlet.1Water flow is indicated on the scale of theflow control valve.2See section Return water flow control onpage 199.Adjust the water flow to the level where theFlow switch shall give alarm. Use the redadjusting knob on the scale of the flowcontrol valve.3xx0600003346To adjust the set flow on the mechanicalFlow switch, remove the grommet on theupper cover and rotate the flow adjustinggear by using a flat screwdriver.Turning clockwise will increase the set flowand turning counterclockwise will decreasethe set flow.4Parts:• A: Flow switchxx0600003355Depending on initial value, increase or de-crease the set value until the g_flow_okchanges, by observing the Process Signalswindow on the FlexPendant.NoteThe indicated flow level may differ from realflow as the flow switch is affected by thewater pressure.5• Process Signals windowRefit the grommet on the flow switch.6Continues on next page200 Product manual - DressPack/SpotPack IRB 6650S3HAC055424-001 Revision: C© Copyright 2004-2018 ABB. All rights reserved.2 Installation2.6.3 Return water flow switch setting
