Pentek PPC20-1A-6A0-4 Manual Del Usuario página 5

Operation
starts at calibration, there are any open lines between
Pressure Central and the transducer , Pressure Central will
accelerate the pump to full speed and keep it there, which
can damage both the motor and the pump.
PRESSURE SET POINT
The Pressure Set Point Switch is located in the Control
unit (see Figure 2). The pressure range is 25 – 95 psi. The
switch can be set with a common small blade screwdriver.
There are 16 settings, labeled 0 – 9 and A –F. The Set
Point adjusts in 5 psi increments. The factory setting is
60 psi (arrowhead at the number 8).
NOTE: The Control must be recalibrated, (that is, you
must disconnect the Control from the power supply, wait
one minute, and then reconnect it) after you adjust the
pressure set point. The Control will not acknowledge the
new pressure set point until it has gone through one
power off/1-minute wait/power on cycle.
NOTE: You must adjust the tank pre-charge whenever
the pressure set point has been changed. The tank
pre-charge must be 70% of the pressure set point.
(This value is the pressure set point multiplied by .70.
For example: If the pressure set point is 60 psi, the tank
pre-charge would be 60 X .70 = 42 or 42 psi.
See Table 1, below).
TABLE 1: Control Pressure Set Point and Tank
Pre-Charge Pressure Values
Switch Pressure Point
Setting Setting (PSI)
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
(See Table 1)
Precharge
Pressure
Not used –
25 18
30 21
35 25
40 28
45 32
50 35
55 39
60 42
65 46
70 49
75 53
80 56
85 60
90 63
95 67
Motor Select Switch
This switch matches the control parameters to the motor
you use. Settings are as follows:
1=30-60Hz
2=30-80Hz
The other settings are reserved for future use.
NOTE: Allowing the motor operating speed to exceed
the motor's design maximum speed can damage the
pump and motor and will void the warranty.
Run/Stop Interface Terminals
The Run/Stop Terminal connections must be closed for
the Control to provide power to the pump's motor. A fac-
tory installed Run/Stop Terminal connector (jumper) is
provided, located in the Run/Stop Terminal connection
(see Figure 3). To install a device to control the Run/Stop
Terminals, turn off the power to the Control, remove the
Run/Stop jumper, and replace it with the leads to the
device.
For Example: A moisture/leak sensor device can be
installed in the home or facility and connected to the
Run/Stop Terminal in place of the Run/Stop jumper. If the
moisture/leak sensor device detects a leak, the Control
will shut down and the pump will not run (and conse-
quently will not pressurize the leaking system).
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