154
Pellerin Milnor Corporation
Table 50
Legend – Pneumatic Schematic (cont'd.)
Item
Description
H
Hot
L
Latch
N1
Pressure is applied to latch to retract & open latch when pilot valve is energized.
N2
Pressure is applied to actuator to open hot water valve when pilot valve is energized.
N3
Pressure is applied to actuator to open cold water valve when the pilot valve is energized.
N4
Pressure is applied to actuator to open third water valve when pilot valve is energized.
N5
Pressure is applied to actuator to open reuse water valve when pilot valve is energized.
N6
Pressure is applied to actuator to open steam valve when pilot valve is energized.
N7
The normally open 2nd brake pilot valve, de-energized, applies pressure to the cylinder to assist the spring to close the brake
tightly, 2nd brake.
N8
The normally open 2nd brake pilot valve, energized, allows cylinder to exhaust to disengage 2nd brake.
N9
The normally closed 1st brake pilot valve, de-energized, applies no pressure to the cylinder allowing the spring actuated cylin-
der to engage 1st brake. (Loose air engage brake)
N10
The normally closed 1st brake pilot valve, energized, allows air to compress the spring to release the 1st brake, allowing the
cylinder to turn.
N11
1st brake pressure switch verifies air pressure to cylinder.
N12
2nd brake pressure switch verifies air pressure of cylinder.
N13
Spring actuated 1st brake
N14
Pressure inflates pushdown cushions when pilot valve is energized. De-energized pushdowns exhaust through quick
releases.
N15
Pressure is applied to actuator to close reuse drain when pilot valve is de-energized.
N16
Normally open drain to reuse (spring open, air close)
N17
Pressure is applied to actuator to close drain valve when pilot valve is energized.
N18
Normally open, drain to sewer
NC
Normally closed
NO
Normally open
PD
Pushdown
PDLF
Pushdown left front
PDRR
Pushdown right rear
RD
Reuse drain option
RI
Reuse inlet option
S
Steam
T
Third
Pneumatic Schematic
3 Sheets
4244SP2
Summary of Contents for 42044SR2
Page 2: ......
Page 9: ...1 General Service Information Pellerin Milnor Corporation 7 ...
Page 23: ...This page intentionally blank ...
Page 43: ...2 Safety Related Components Assemblies Pellerin Milnor Corporation 41 ...
Page 51: ...3 Drive Assemblies Pellerin Milnor Corporation 49 ...
Page 59: ...Pellerin Milnor Corporation 57 Drive Base 5 Sheets 4244SP2 SM Single Motor Drive Assemblies ...
Page 87: ...This page intentionally blank ...
Page 111: ...This page intentionally blank ...
Page 114: ...112 Pellerin Milnor Corporation 6 Shell and Door Assemblies ...
Page 124: ...122 Pellerin Milnor Corporation 7 Control and Sensing Assbmlies ...
Page 128: ...126 Pellerin Milnor Corporation 8 Chemical Supply Devices ...
Page 129: ...This page intentionally blank ...
Page 136: ...134 Pellerin Milnor Corporation 9 Water and Steam Piping and Assemblies ...
Page 137: ...This page intentionally blank ...
Page 154: ...152 Pellerin Milnor Corporation 10 Pneumatic Piping and Assemblies ...