Honeywell Fema DCM-203-574 Series Assembly And Operating Instructions Manual page 57

Max. pressure limitation
Fig. 6. Maximal pressure limitation
DW = pressure switch
T1 = STOP
T2 = START
MU2B-0238GE51 R0616D
1. Basic Equipment of the Pressure Switches
Min. pressure limitation
Fig. 7. Minimal pressure limitation
S = signal (as required)
K1 = relay with self-hold
SC = safety circuit
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