Hydraulic Commissioning; Float Valve Setting; Bleeding Pumps - FLOWTECH flowpress WMDA Operation And Maintenance Manual

22 ID NUMBER
23 RELAY
INVERSION
24 OVERRUN
25 PRESSURE
ALARM AUTO
RESET
26 BOOST
27 CASCADE
28 SOLENOID
CONTROLLER

Hydraulic Commissioning

1 – Float Valve Setting
Ensure that the break tank float valve is set to its lowest position:
If a drain valve is fitted to the break tank, ensure that it is closed. Then, turn on the mains water supply and
allow the break tank to fill.
When the float valve operates for the first time, it may not close immediately, causing the break tank to overfill.
Once the internals of the valve have been fully wetted this should not occur again.
2 – Bleeding Pumps
This step is only necessary for FSDA and WMDA units.
Make sure that the internal isolation valve within the pressurisation unit is closed by following the steps below.
Failure to do this may cause injury or damage to the equipment, system or property.
flowpress
A user configurable identification number.
This option does not serve any functional purpose.
When enabled, all normally open fault contacts (i.e. all except the common alarm)
are converted to normally closed.
Allows the pump to continue running for a set period of time after the required
pressure has been reached.
This will prevent the pumps from 'hunting'.
The value can be set from 0 – 10 seconds.
When enabled, the <HIGH PRESSURE> and <LOW PRESSURE> alarms will be
cleared automatically if and when the pressure returns to normal. If disabled, the
alarms must be manually reset.
When enabled, the controller will allowing the pumps to run even if the system
pressure is zero.
Allows the pumps to operate in duty/assist mode.
After either pump starts, the other pump will start after a set period of time. This
option can be set to OFF, or 5 – 30 seconds.
When enabled, the "high water" input is used to trigger a top up solenoid valve
connected to the "sensor healthy" volt free contact.
This option should only be enabled on units which utilize a solenoid valve as the
means of top-up.
WMDA Pressurisation Units
01
NO
5
YES
NO
OFF
NO
19