3 Electrical diagram
The complete electrical diagram is available inside the electric cabinet.
Some generally used symbols are given in below table:
Reference Designation Reference Designation
F1/2/... Fuses T1 Transformer
Y1/Y2 Solenoid valves MT01 PDP sensor
PT01/PT02 Pressure transducer, Tower A/B TT01 Temperature sensor, inlet
E1 Regulator E2 Expansion module IO2
PDS11/12/13 Pressure drop (ΔP) over filter
(optional)
S0 Main switch (customer's
installation)
S1' Remote start/stop switch
(optional)
S3' Remote emergency stop
(optional)
Instruction book
2920 1891 00 13
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