Wilo Wilo-HiMulti 3 H Series - Page 21

Set switch-off pressure (routine 1)
Switch-off pressure
does not match the
system parameters
Check whether the switch-off pressure displayed on the
pressure gauge matches the calculated value
Set gas supply pressure (routine 2)
Domestic water system
switches on or off less than
o
n
ce
a
min
ute
Mount the pressure switch cover
Establish electrical power supply and check the
settings using the values displayed on the
pressure gauge
Diagram: Setting the pressure switch
Domestic water system switches off within a short time Domestic water system does not switch off
Set switch-off pressure
(routine 1)
Switch-off pressure
does not match the
system parameters
Establish electrical power supply and check the
settings using the values displayed on the
pressure gauge
Gas supply pressure of the diaphragm vessel matches the
system parameters
Check the gas supply pressure of the diaphragm vessel (see Table 1: approx. pI - 0.2..0.5 bar or pI - 10%)
Gas supply pressure of the diaphragm vessel does not
match the system parameters
Close shut-off device on the pressure
side
Establish electrical power supply
Establish electrical power supply
Increase difference
between switch-on
pressure and switch-off
pressure (routine 3)
Domestic water system
switches on or off more
o
f
te
n
t
h
a
n
o
n
ce
a
min
ute
Completely open the user point with the smallest extraction amount
Switch-off pressure matches the system parameters
English
28 WILO SE 01/2016