126
For installation position, see page 143.
Appliance fuse protection (to EN 60127-5)
F10
■
T10 A (slow)
■
250 V, 50/60 Hz
■
5 x 20 mm
■
Power cable KSK
F30
■
T5 A (slow)
■
250 V, 50/60 Hz
■
5 x 20 mm
■
Power cable HKK
F40, F41, F42, F43
■
T10 A (slow)
■
400/250 V, 50/60 Hz
■
5 x 20 mm
■
Power cable ZPK
F51, F52, F61, F62, F71, F72
■
T5 A (slow)
■
400/250 V, 50/60 Hz
■
3 x 10 mm
■
Supply to motors:
–
F51, F52: Discharge motor (plug
sYK
)
–
F61, F62: Motor for screw conveyor/rotary lock
valve (plug
sYH
)
–
F71, F72: Feed screw conveyor motor (plug
sYD
)
Checking the fuses
1.
Isolate the system from the power supply, e.g. by
removing the separate fuse or by means of a
mains isolator, and check that it is no longer live.
Safeguard the system against reconnection.
2.
Open the control unit.
3.
Check the fuses. Replace if necessary (see con-
nection and wiring diagram).
Danger
Using the wrong fuses or inserting them
incorrectly can lead to an increased risk of
fire.
■
Do not use force to insert the fuses. Posi-
tion the fuses correctly.
■
Only use structurally identical types with
the stated response characteristics.
Battery
The battery serves to save the time and date in the
event of a power failure.
■
Button cell, type CR2032, 3 V
■
Replacement: Every 5 years
For installation position, see page 143.
High limit safety cut-out
!
Please note
Cutting or kinking the pipeline (capillary) of the
high limit safety cut-out (STB) can cause the
heating system to fail permanently.
■
Do not bend capillaries and observe the mini-
mum permissible radius (5 mm) when routing
them.
■
If the capillaries are bent or damaged, the high
limit safety cut-out must be replaced.
The high limit safety cut-out is part of the boiler.
The high limit safety cut-out is located behind the
boiler programming unit.
Maintenance
Fuses
5679249
Maintenance
