Program List - Jet MAXI D125 Operation & Maintenance Manual

Program List

The table below gives details of all menu items, in the order that they will appear:
# Menu Item
1 COLD FILL
2 HIGH SET
3 LOW SET
4 DIFFERENTIAL
5 FLOOD LIMIT
6 PUMP 1 COUNT
7 PUMP 1 HOURS
We reserve the right to change designs and technical specifications of our products
The required fill pressure, i.e. pump 'cut-out' pressure.
The recommended setting is 0.3 BAR above the static pressure of the system
(0.1 Bar per meter of static height).
For example, a 14m high installation will have a static pressure of 1.4 Bar,
making the recommended cold fill pressure 1.7 Bar.
It is not possible to enter a value higher than the current [HIGH SET] or lower
than the current [LOW SET] values.
The high pressure alarm setting.
If the pressure in the system reaches this value, the <HIGH PRESSURE> alarm
and common alarm will be activated.
The recommended setting is 10% below the safety valve rating.
For example, if the safety valve rating is 3 Bar, the recommended setting is 2.7
Bar.
It is not possible to enter a value lower than the current [COLD FILL] value.
The low pressure alarm setting.
If the pressure in the system falls below this value, the <LOW PRESSURE>
alarm and common alarm will be activated, and the pressurisation pumps will
not run.
The recommended setting is 0.5 Bar below the [COLD FILL] pressure.
It is not possible to enter a value higher than the current [COLD FILL] value.
The differential between the 'cut-in' and 'cut-out' pressures of the
pressurisation pumps.
The cut-in pressure will be equal to the [COLD FILL] pressure, minus the
differential pressure.
For example, if the [COLD FILL] pressure is set to 1.5 bar, and the differential
set to 0.2 Bar, the pump 'cut-in' pressure will be 1.3 Bar (1.5 – 0.2 = 1.3)
The maximum continuous run time for each of the pressurisation pumps.
If a pump runs continuously for longer than this period, the pump will stop
and a <FLOOD LIMIT> alarm will be activated.
This is to prevent the unit from pumping large amounts of water in the event
of a large leak/burst pipe.
For very large systems, this may need to be increased.
The value can be changed in increments of 10 minutes, to a maximum of 990.
The cumulative number of pump starts for pump 1.
This is a cumulative counter, the value of which cannot be modified. If using
the engineer's code, the counter can be reset to zero by holding the (MUTE)
button.
The cumulative run time in hours for pump 1.
This is a cumulative timer, the value of which cannot be modified. If using the
engineer's code, the counter can be reset to zero by holding the (MUTE)
button.
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Function
.
Default
Value
1.0 Bar
2.7 Bar
0.5 Bar
0.2 Bar
10 MINS
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Rev 8.1 Oct-15 Page 17 / 42