Residual Risk; Hazard Generated By Current; Hazard Generated By Human Error; Hazard Generated By Current During Cleaning Work - praher Aquastar Comfort 3000 Bedienungsanleitung

6. Residual Risk

6.1 Hazard generated by current

Manipulation of the Aquastar by operating staff is strictly prohibited and may only
be performed by duly authorized staff, qualified for electrical work. Compliance
with the corresponding instruction and prohibition signs is required.

6.2 Hazard generated by human error

The operating staff must be instructed in regard to the residual danger resulting
from electricity and familiarized with correct operation. Efficiency of the safety
training must be verified.

6.3 Hazard generated by current during cleaning work

Cleaning of the Aquastar may only be performed after disconnection from power
supply (lever switch).

7. General

PRAHER Aquastar controls are significant technical products, which are manufactured with high
accuracy to the most modern technical production methods. Entitled complaints will naturally be
rectified as fast as possible if they occur. The equipment has a warranty after valid European
law. The warranty begins with the purchase date.
Attention! For relief of the sealing system the valve is shipped on intermediate position and is
not sealed! Prior to operation it has to be electrically set to position "Filter"!

8. Directions for use

This is a control unit for a multiport valve with 6 positions for fully automatic filter backwashing
according to need, i.e. pressure and/or time. A filter pump connection is activated about 20 sec
after the respective position is reached. The dry running design guarantees safe operation.
Additional electrical connections are available:
Backwash position; backwash and rinse position; for series connection of several valves
installed in series; for interruption of a heater or a heat exchanger before cycle start; for a ball
valve during the cycle.
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