PMC PH - Pressure Balance Control Ladder Diagram

220 VAC – 1 Phase
21
Pressure Balance Control Circuit
C
1 7
4
100
200
1211
CONTACT
X2X1
FAULT
R
X2X1
ON
G
12
Q1
12
Q4
12
Q2
12
Q3
24V
2
3 5
6
I2 I3 I4 I5 I6 I1
A2A1
COIL
I7 I8
0V
A
R
CONTROL UNIT
1 CR
ROTARY
SWITCH
PRESSURE
TRANSDUCER
PRESSURE
TRANSDUCER
100 100 100 100
I4 I2 I1 I5 I7 I8100
100
200
200
200
200
200 200 200
Q1-1 Q4-1 Q2-1 Q3-1
16
200
100
I6
200
A PRESS R PRESS
55
56107
PUMP CIRCUIT*
107 55 55 56 56
Q1-2
56 200
100
*See Pump Circuit (Pg. 20)