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Controller
Note!
Clearing of the cause must be confirmed by pressing the "Ack" button on
the operator panel. All other alarms are automatically reset as soon as
the cause has been eliminated.
ER
Alarm
Code
01
Minimum pressure
02.1
Low water
03
High water
04.1
Pump 1
04.2
Pump 2
05
Pump run time
06
Make-up time
07
Make-up cycles
08
Pressure measurement
09
Level measurement
10
Maximum pressure
11
Make-up quantity
15
Make-up valve
16
Power failure
Stop ˃ 4 hours
19
20
Max. make-up volume
21
Maintenance recommended
44 — English
Floating
Causes
contact
YES
•
Set value not reached.
•
Water loss in the system.
•
Pump fault.
•
Controller in Manual mode
YES
•
Set value not reached.
•
Make-up disabled.
•
Air in the system.
•
Dirt trap clogged.
-
•
Set value exceeded.
•
Make-up disabled.
•
Water intake through a leakage in
a thermal transfer medium of the
user.
•
"VF" and "VG" vessels too small.
YES
Pump disabled.
•
Pump jammed.
•
Pump motor defective.
•
Pump motor contactor tripped.
•
Fuse defective.
-
•
Set value exceeded.
•
Severe water loss in the system.
•
Cap valve at the intake side closed.
•
Air in the pump.
•
Solenoid valve in the overflow line
does not close.
-
•
Set value exceeded.
•
Water loss in the system.
•
Make-up line not connected.
•
Make-up output insufficient.
•
Make-up hysteresis too low.
-
Set value exceeded.
YES
Controller receives incorrect signal.
YES
Controller receives incorrect signal.
-
•
Set value exceeded.
•
Pressure relief pipe not
functioning.
•
Dirt trap clogged.
"With water meter" must be activated in
-
the Customer menu.
•
Set value exceeded.
•
Severe water loss in the system.
-
Contact water meter measures without
make-up request.
-
No power.
-
Device is in Stop mode for more than 4
hours.
-
Set value exceeded.
-
Set value exceeded.
Variomat Basic — 09.09.2022-Rev. C
Note!
Floating contacts, setting in the Customer menu, 8.6 "Parametrising
the controller in the Customer menu", 40.
Remedy
•
Check set value in the customer or service
menu.
•
Check water level.
•
Check pump.
•
Set the controller to Automatic mode.
•
Check set value in the customer or service
menu.
•
Clean the dirt trap.
•
Check functioning of the "PV1" solenoid valve.
•
If necessary, manually add water.
•
Check set value in the customer or service
menu.
•
Check functioning of the "WV1" solenoid valve.
•
Drain water from the "VG" vessel.
•
Check site fluid medium for leakage.
•
Rotate the pump with screwdriver.
•
Replace the pump motor.
•
Electrically test the pump motor.
•
Replace the fuse.
•
Check set value in the customer or service
menu.
•
Check the water loss and correct, if necessary.
•
Open the cap valve.
•
Vent the pump.
•
Check functioning of the "PV1" solenoid valve.
•
Check set value in the customer or service
menu.
•
Check water level.
•
Connect make-up line
•
Check set value in the customer or service
menu.
•
Seal any leakage in the system.
•
Connect the plug.
•
Check functioning of the pressure sensor.
•
Check the cable for damage.
•
Check the pressure sensor.
•
Check functioning of the load cell.
•
Check the cable for damage.
•
Connect the plug.
•
Check set value in the customer or service
menu.
•
Check functioning of the pressure relief pipe.
•
Clean the dirt trap.
•
Check set value in the customer or service
menu.
•
Check water loss in the system and repair, if
necessary.
Check the make-up valve for leaks.
Connect to voltage supply.
Set the controller to Automatic mode.
Reset the "Make-up quantity" meter in the Customer
menu.
Perform maintenance and reset the maintenance
counter upon completion.
Alarm reset
-
-
-
"Quit"
"Quit"
"Quit"
"Quit"
-
-
-
"Quit"
"Quit"
-
-
"Quit"
"Quit"
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