ESBE GDA311 Serie Mode D'emploi page 5

Heating output GDA311
DIRECT SUPPLY
Δ P
[kPa]
80
70
7.5
60
6
50
5
40
4
30
3
20
2
10
1
0
0 0.2 0.4 0.6
0 0.7 1.4 2.2
0
10
20
30
40
15°C
50
60
Output
[kW]
You find more information about the pump on www.esbe.eu.
6
WILO - FAULTS, CAUSES AND REMEDIES
LED Indicator Meaning
lights green Pump in operation
lights orange Pump is in PWM mode
blinks red/green Pump in function but
stopped
blinks red Pump out of function
blinks orange Pump out of function
LED off No power supply
7
HOW TO USE THE INFORMATION LEAFLET
The Circulation Unit is equipped with a display. It gives you also the possibility
to write in notes and leave behind.
Just remove the display glass and get acess to the card.
8
MAINTENANCE
The circulation unit does not require any specific maintenance under normal
conditions. Althoug it is important to annually check the entire system. Pay
specially attention to all threaded or soldered connections and the potential
occurrence of limestone sedimentation.
WARNING Switch of the electric supply before any operation. Pay attention
to the hot water contained.
SPARE PARTS
Spare parts are ordered via ESBE customer service.
In order to avoid queries and incorrect orders, all data on the name plate
should be submitted for each order.
Heating output GRA311
Δ P
[kPa]
80
70
60
50
40
30
20
10
0
0.8 1.0
0
2.9 3.6 0
0
10
5°C
20
7°C
10°C 30
40
50
60
Output
[kW]
Diagnostic
Pump runs according its
setting
Pump is speed controlled
by the PWM signal
Pump restarts by itself after
the fault is disappeared
Pump stopped (blocked)
Pump stopped
No voltage on electronics
MIXING FUNCTION
7.5
6
5
4
3
2
1
0.2 0.4 0.6 0.8 1.0
0.7 1.4 2.2 2.9 3.6
5°C
7°C
10°C
15°C
Cause
Normal operation
Normal operation
1. Undervoltage U<160 V
or Overvoltage U>253 V
2. Modul overheating:
temperatur inside motor
too high
Pump does not restart by
itself due to a permanent
failure
Pump is not starting
1. Pump is not connected
to power supply
2. LED is damaged
3. Electronics are damaged
5 (28)
Heating output
GFA311 FIXED TEMPERATURE
Δ P
[kPa]
80
70
60
7.5
50
6
40
5
30
4
20
3
2
10
1
0
0 0.2 0.4
0.7 1.4
0
0
10
20
30
15°C
40
Output
[kW]
rätt kurvor?
Remedy
1. Check voltage supply
195 V < U < 253 V
2. Check water and ambient
temperature
Change pump
Change pump
1. Check cable connection
2. Check if pump is running
3. Change pump
0.6 0.8
2.2 2.9
5°C
7°C
10°C