GEA HG22e A Assembly Instructions Manual page 19

5 | Electrical connection
5.6 External connection of the MP 10 for terminal boxes at reduced height (Accessories)
Terminal box
Fig. 23
5.7 Function test of the trigger unit MP 10
Before start-up, troubleshooting or making changes to the control power circuit,
check the functionality of the trigger unit:
Item
Procedure
● Power supply interrupted (L1 or S1)
1
● Release the motor temperature sensor connection (1 or 2)
● Release the hot gas temperature sensor (if installed) (3 or 4)
● Restore the power supply (L1 or S1)
2
● Function check of motor temperature sensor: operational
● Function check of hot gas temperature sensor: operational
●
3 Power supply interrupted again (L1 or S1)
● Reconnect terminals 1 or 2 and/or 3 or 4
●
4 Restore the power supply (L1 or S1):
●
MP 10 is operational again
The compressor and the trigger unit MP10 are operational when the H3 LED (green) illuminates.
0,5 mm²
X3: 1 2
PTC1 PTC2
PE
3 4
3 4
R2
LED H1 LED H2 LED H3
red
OFF
ON
OFF
OFF
D
GB
F
E
red green
OFF OFF
ON
ON
OFF OFF
OFF ON
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