Honeywell GmbH
20
Translation of original - EN1H-1374GE23 R1014
GB
10.2 Possible causes / Elimination
A B C D E F G H I J K L M N Possible cause
Elimination
refer to
x x
x
x
The pump or pipelines are not completely
ventilated of not filled
Fill or ventilate them
Instructions for the
pump
x x x x x
x
Shut-off valves are only opened partially
or not at all
check and open if necesary
------------------------
x
x x
x
The dirt trap is clogged
clean
Chapter 9.3.2
x x x x
The shut-off valve of the input is closed or
defective
check and open if necesary
------------------------
x
x
The shut-off valveof the output is closed
or defective
check and open if necesary
------------------------
x x
x x x
x
x
Pressure switch is set wrong
Check the set value
Instructions for the
pressure switch
x
Switch-on pressure is too high
Check the set value
Chapter 5.
x
x
Membrane pressure vessel is not
precharged enough
Set the precharge pressure
Chapter 9.3.1
Renew the pressure pad
Instructions for the
membrane pressure
vessel
x
x
The membrane pressure vessel is defec-
tive
check the seal, replace if necessary Instructions for the
membrane pressure
vessel
x
The floating ring seal is defective
replace
Instructions for the
pump
x
Buffer tank is not full
Check the water level in the buffer
tank
------------------------
x x x
x x x
The system check valve is defective
check and replace if necessary
Instructions for the
check valves
x
x
x x x
More water is removed than stated in the
ordering data
Consult the manufacturer
------------------------
x
The motor protection switch is activated,
it is set wrong or the pump is stuck
Compare the values with those stated
on the type label
Type label/Pump in-
structions
x
The set delay is too short
Check the set value
Chapter 8.3.1.3
x
The main power supply is interrupted
check or eliminate the defect, check
the fuse
------------------------
x
x
The main fuse in the distributor of the sy-
stem is loose or burned, perhaps too
small or too fast-acting fuses were used
Check the fuses, renew if necessary,
measure the motor current
------------------------
x
Phase failure
check individual phases, replace if
necessary
------------------------
x
Magnetic valve for the minimum pumping
amount does not switch
check or eliminate the defect
Instructions for ma-
gnetic valves
x
Leak on the output side
check
------------------------
x
Electrical connection between the buffer
tank control unit and the switch cabinet is
interrupted
check or renew the electrical connec-
tion
------------------------
x
The refilling is too large, odour trap is
clogged
Check the refilling, check if the odour
trap is clogged, clean if necessary
------------------------
