Armstrong 3750 Manuale di installazione e istruzioni per l'uso - Pagina 8
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8
19.0 controller functions
pressure
par 5 - high pressure alarm = mwp(pf1)
par 4 - low pressure alarm = static height (ph)
pump 1
par 3 - [pressure dip delay] = 5 sec
Pressure dip delay
No message required, no alert. Should not start the pump
until value parameter [pressure dip delay] seconds have
passed without the pressure coming back to the set point.
Digital display
Showing system pressure, warning codes, alarm codes and
pump run indication.
Pump test
When the controller is in the normal mode (not
programming).
When the up p button is pressed and held for 3 seconds
Pump 1 will run and continue to run until the button is
released.
3750 Pulpress
pressurisation unit
par 1 - pump cut in = (pi) - 0.2bar di erential
pump 2
par 11 - [hrs to pulse cycle] = 720 hrs
par 1 - pump cut out = fill pressure (pi)
par 12 - [pulse cycle time] = 1 second
When the down q button is pressed and held for 3 seconds
Pump 2 will run and continue to run until the button is
released. This will enable the pumps to be tested manually.
Hours run meter(s)
This cannot be reset, showing the number of hours the pump
has been running. (Max. 999 hours).
Pump auto cycle
On two pump sets pumps will auto-cycle increasing service
interval time.
Alarm
Audible alarms on error condition with mute.
pump 1
time