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Installation & Operation Manual | Sigma Pro
Maintenance
General inspection
A general inspection of the filter operation should be done regularly and prior to any scheduled
maintenance procedure. This includes pre-season, post-season, and seasonal check-ups.
General inspection procedure:
1. Initiate a flushing cycle
2. Check that the exhaust valve opens and closes
normally
3. Visually check the filter housing and valves for leakage
Note for long-term cessation of filter operation
The following must be done if the filter will not be operated for the season:
1. Perform a flushing cycle (if possible, with a closed downstream valve)
2. Release pressure from the filter and drain it
Avoid damage due to frost
To avoid damages or breakages in the filter, the filter must be drained prior to periods of frost, including
the cylinder and command tubes.
Before any maintenance operation, please read the following:
➢
Installation, operation and maintenance should be performed by technicians in accordance with
Amiad's instructions and in accordance with this manual. Other service should only be done by
authorized technicians.
➢
Disconnect the filter from the water system by closing and securing the manual inlet valve. In cases
where the downstream piping network is pressurized, close and secure the manual outlet valve.
➢
Release the residual water pressure by opening the pressure release/ drainage valve.
➢
Empty the filter by opening the drainage valve.
