ZUWA Impeller Pumps
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10.3 Mechanical pressure switch
The pressure switch stops the pump once the
preset pressure of 3 bar is reached (top switching
point). When pressure reaches the lower
switching point the pump will start automatically.
Switch hysteresis is set to 30% as standard.
The top switching point can be adjusted with the
adjusting screw located beneath the connector
plug.
>
Remove connector plug and turn adjusting
screw with a small screw driver:
-
turn right for higher pressure
-
turn left for lower pressure
Switch hysteresis can not be adjusted.
Works only with 400V motor!
Technical data
switch pressure:
adjustable from 1 - 10
bar
switch current:
4 A
connecting thread:
¼"
protection class:
IP 65 with plug
switch box:
stainless steel
membrane:
FKM as standard
10.4 Tool for changing the impeller
A useful tool to install the impeller easily into the casing, fitting for all ZUWA impellers.
connector plug
adjusting screw
pressure switch
and connector
plug
