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6.25 Common alarm relay set-up:
The Common alarm relay (relay 3, Fig. 19) can be configured via the Advanced
setting menu to activate when one of the following alarms are displayed on
the screen:
Hi pressure
Lo pressure
Low water level
Pump fail
Pump run time high
Pump activity high
Sensor fail
This will allow remote monitoring of an alarm to help fault find or monitor the
system condition.
The Common alarm relay can also be configured via the Advanced setting
menu to be open circuit (NO) or closed circuit (NC) when the alarm is active
allowing the output signal to be changed
6.26 Hydraulic commissioning:
Ensure both inlet and outlet hydraulic connections are made and are
watertight.
Turn on water supply to SPU – Check for leakage and operation of fill
valve.
Allow the tank to fill and water level to stabilise. Adjust the float of the
fill valve to set the water level if needed.
Bleed pumps by opening the drain
valve and allowing the water to be
pumped out of the valve. A short
length of tube can be used to route
the water into a suitable container if
needed.
Close isolation valve on the outlet of
the SPU.
Turn the electrical supply ON to the
SPU. The Stuart Turner start up logo
will be displayed and then the Home screen will be displayed.
The SPU will run briefly and then turn off after a pre-set run on time.
Due to the small size of the isolated system the SPU will signal a Hi
pressure error and the red error light will illuminate on the front of the
SPU, this is normal.
Open the isolation valve on the outlet of the SPU and the SPU will
run and start to fill the system.
6.27 For further technical support: Phone the Stuart Turner TechAssist team
on +44 (0) 800 31 969 80. Our staff are trained to help and advise you over
the phone.
Pressure above the Hi pressure alarm (1)
Pressure below the Lo pressure alarm (4)
Low water level is seen by they sensor in the tank.
A system pressure increase is not acheived in a 5 minute period.
A pump has run for longer than the set Pump run time value, 10 to 60
minutes without stopping.
A pump has started more than the Start Activity high value in 24
hours.
The sensor input is above or below the normal input range.
- 21 –
Fig. 17
Drain
valve
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