Johnson Controls Penn P216 Product Bulletin page 5

PB_P216_08 2014
P216 Output Voltage vs Input
In reverse operation, the minimum speed occurs when the pressure is equal to the setpoint and the maximum speed
occurs when the pressure is less than or equal to the setpoint minus the prop. band.
DIP Switch Block
1 2 3 4
Min speed
ON OFF OFF ON
20% 20% 100%
Setpoint
60% from "-" - +
220 V
Output
(VAC)
Min. Speed 46 V
Proportional Band
16 Bar 20 Bar
Input (Pressure - Bar)
Setpoint
Output vs Input curve
Example:
Minimum Speed potmeter on 20% (= 46 Vac)
Setpoint Range = 4 - 10 bar (Switch 1 and 2 OFF)
Proportional Band = 2 bar
100 (98%)
0(2)% 50%
4 bar 7 bar 10 bar
40% = [(10 - 4) 40%] + 4 = 2,4 + 4 = 6,2 bar
The P216 modulate the output voltage to the Fan motor between 46 Vac and 230 Vac over condenser pressure range
4,2 to 6,2 bar.
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