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Suction Lines / Lift
The Torrium2 controller has an in-built non-return (check) valve fitted. In flooded
suction installations there is no need to have a suction non-return valve.
Installations with flooded suction require a gate or isolating valve so water
supply can be turned off for pump removal and servicing.
In suction lift installations a footvalve will normally be required for the pump
to retain prime.
In some suction lift installations there may be good reason to remove the
oring from the inbuilt check valve to ensure that the discharge pressure
is also applied to the suction line and footvalve. (NOTE: The check valve,
minus the oring, needs to be replaced in the Torrium2 controller to properly
direct water flow over the flow sensor.) Removing the oring from the
inbuilt check valve could be where the suction line was very long or where
there was concern regarding a leaking footvalve. This may not always
be applicable and it is acceptable to retain the inbuilt check valve in the
Torrium2 on suction lifts with good suction plumbing.
Should the oring of the inbuilt check valve be removed though, an
additional accumulator should be fitted to the Torrium2, or discharge
pipework as applicable, to ensure the pump is not cycled on shut down.
The size of this accumulator will depend on the size, length and type of
pipe used on the suction.
Discharge Connections
The Torrrium2 offers the option of using one or both outlet options.
Use of the horizontal outlet only allows for either:
1. Easy access to prime the pump and / or the removal of the inbuilt
Torrium check valve
2. Fitment of a pressure tank (up to 20 litre capacity) onto the priming port
/ vertical discharge port
If you use the vertical outlet instead or as well, you need to consider
access to the inbuilt check valve in the Torrium. Davey suggest you use a
flexible connection and / or union connection to allow for ease of access to
the check valve.
Pipe Connections
For best performance use P.V.C. or polythene pipe at least the same
diameter as the Torrium2 controller outlet.
Larger diameter pipe may be used to minimise resistance to flow when
pumping longer distances.
Flexible pipe will help alignment during installation, as well as reduce noise
transfer during operation.
Abrasive Materials - The pumping of abrasive materials will cause damage to
the pressure system which will then not be covered by the guarantee.
Maintenance
The only regular attention your new pressure system requires is to check any
supplementary pressure tank’s air charge every 6 months. This can be checked at
the air valve with a tyre gauge. Do not charge tank to a higher pressure than 70% of
the maximum system pressure.
To check air pressure in tank:
1. Switch off pump.
2. Open outlet nearest to pump to release water pressure.
3. Charge tank to desired setting using air pump and check with tyre gauge.
4. Switch on.
5. Close outlet.
*NOTE:
a) For protection, Davey pump motors are fitted with an automatic “over temperature”
cut-out. Constant tripping of this overload device indicates a problem e.g. low
voltage at pump, excessive temperature (above 50°C) in pump enclosure.
b) The Torrium2 controller may have to be reset after rectifying any of the above
operating troubles. This is done by pushing in the “Prime” button and releasing it
after 2 seconds.
During servicing, use only approved, non-petrochemical based
oring and gasket lubrication. If unsure, consult your Davey
Dealer for advice.
WARNING : Under no circumstances should Torrium2 controller be
disassembled. Failure to observe this warning will expose persons to
the possibility of personal injury and may also result in damage to other
property. Do not dismantle, no user serviceable parts, spring under
pressure.