tefen MixRite 2.5, Руководство пользователя

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4.2. MixRite Installation
Important!
- When connecting a MixRite either to the public water supply or to its own water
source, you must respect the regulations in force concerning protection of the
source i.e. backflow prevention, etc.
- Use 120 mesh
– 130 micron filter.
- For water with high particle content, use 250 mesh
– 60 micron filter depending
on your water quality.
- Use plastic record.
- Ensure water flow is according to the arrows on the unit.
- If the water line is higher than the MixRite itself, there is a possible risk of water
and additive flowing back through the MixRite. In such a case, installing a non-
return valve downstream is necessary.
- It is recommended to place an anti-siphon valve on the downstream side of the
dosing pump in installations in which there is a risk of siphoning.
- The strainer must be suspended at least 10 cm (4") above the bottom of the
additive tank to avoid sucking up the insoluble particles that may damage the
pump assembly. Do not put the strainer on the ground.
- Water hammer/excessive flow
:
•
For installations subject to water hammer, a protection device such as a
check valve or union ball check must be fitted (pressure/flow control system).
•
For automatic installations, slow opening and closing solenoid valves are
preferable.
•
In an installation where the MixRite serves several sectors, the closing of one
sector and the opening of another sector must be done at the same time
(simultaneous operation of the solenoid valves).
* Where water is supplied at a higher flow rate than the working flow rate of the
pump, or where the pump is not needed for continuous operation, the MixRite
must be installed on bypass line (see page 12).