Installation-, User- and Service Manual
95
Indication
Cause
Measure
Remark
F20 (blocking error)
(2/2)
Temperature of heating
system is to high.
3-way mixing valve not
functioning.
1. Check whether the 3-way mixing valve is connected
correctly.
2. Check whether the cable of the 3-way mixing valve
(correctly) connected to the controller.
3. Check whether the 3-way mixing valve is correctly
configurated (11.5 "Configuration 3-way mixing valve").
-
See electrical diagram (11
“Appendices”).
-
To replace the necessary parts, you must contact
your installation engineer.
Sensor S
5
not correctly
positioned.
Check whether the sensor is correctly positioned in the heating
system.
Sensor S
5
not (correctly)
connected.
Check whether the sensor is connected correctly
S10 (blocking error)
Open circuit of sensor S
5
.
Sensor S
5
not (correctly)
connected.
Connect sensor S
5
correctly.
-
See electrical diagram (11
“Appendices”).
-
To replace the necessary parts, you must contact
your installation engineer.
Damaged cable and/or
defective sensor
Replace cable and/or sensor.
S20 (blocking error)
Short circuit of sensor S
5
.
Short circuit of sensor circuit.
Replace cable and/or sensor.
-
To replace the necessary parts, you must contact
your installation engineer.
Summary of Contents for Theta T Series
Page 4: ...Theta Dual Service Module 2 0 4...
Page 6: ...Installatie Gebruikers en Service handleiding 6...
Page 16: ...Installatie Gebruikers en Service handleiding 16...
Page 28: ...Installatie Gebruikers en Service handleiding 28...
Page 30: ...Installatie Gebruikers en Service handleiding 30...
Page 32: ...Installatie Gebruikers en Service handleiding 32...
Page 38: ...Installatie Gebruikers en Service handleiding 38...
Page 44: ...Installatie Gebruikers en Service handleiding 44...
Page 46: ...Installatie Gebruikers en Service handleiding 46...
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Page 108: ...Installation User and Service Manual 108 11 5 Configuration 3 way mixing valve IMD 1124 R0 0...
Page 109: ...Installation User and Service Manual 109 0311 686 R0 0 NL EN...