Return Water Flow Switch Setting - ABB DressPack IRB6650S Product Manual

2 Installation

2.6.3 Return water flow switch setting

2.6.3 Return water flow switch setting
Introduction
The mechanical flow switch is pre-set at delivery to 8 liters/min at 0.2 MPa water
pressure.
If the water pressure exceeds 0.2 MPa, the setting cannot be done with the
graduation on the window name plate, as the pressure affects the measured flow.
Please perform the setting as described in the following procedure.
Settings
The procedure below details how to set the mechanical flow switch.
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Action
Open the solenoid valve on the water inlet.
Water flow is indicated on the scale of the
flow control valve.
Adjust the water flow to the level where the
Flow switch shall give alarm. Use the red
adjusting knob on the scale of the flow
control valve.
To adjust the set flow on the mechanical
Flow switch, remove the grommet on the
upper cover and rotate the flow adjusting
gear by using a flat screwdriver.
Turning clockwise will increase the set flow
and turning counterclockwise will decrease
the set flow.
Depending on initial value, increase or de-
crease the set value until the g_flow_ok
changes, by observing the Process Signals
window on the FlexPendant.
Note
The indicated flow level may differ from real
flow as the flow switch is affected by the
water pressure.
Refit the grommet on the flow switch.
© Copyright 2004-2018 ABB. All rights reserved.
Note
See section Return water flow control on
page 199.
xx0600003346
Parts:
• A: Flow switch
xx0600003355
• Process Signals window
Product manual - DressPack/SpotPack IRB 6650S
3HAC055424-001 Revision: C