Johnson Controls System 350 Technical Bulletin page 6

Temperature, humidity, and pressure stage modules
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Figure 9: Typical Multistage Temperature Control System Using 120 VAC Power Supply
Figure 10: Typical Multistage Humidity Control System Using 120 VAC Power Supply
Figure 11: Typical Multistage Pressure Control System Using 120 VAC Power Supply
6
S350A Temperature, S351A Humidity, and S352A Pressure Stage Modules Product/Technical Bulletin
SEN
Shield (Connect
only to COM on A350)
A350
Y350R
Wire
Terminal
Block
24V
COM
VDC
SEN
120 VAC
Load
SEN
VDC
Shield (Connect
only to COM on W351)
W351
Wire
Terminal
Block
24V
COM
VDC
SEN
120 VAC
Load
SEN
VDC
Shield (Connect
only to COM on P352AB)
Y350R
P352AB
Wire
Terminal
Block
24V
COM
VDC
SEN
120 VAC
Load
COM
Isolate and tape. (Do not ground
this end of cable shield.)
S350A
S350A
Load
Load
COM
Isolate and tape. (Do not ground
this end of cable shield.)
Y350R
S351A
S351A
Load
Load
Wiring Harness
COM
Isolate and tape. (Do not ground
this end of cable shield.)
S352A
S352A
Load
Load
Sensor
S350A
D350
Load
Transmitter
S351A
D351
Load
P399 Transducer
S352A
D352A
Load

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