Pentair PENTEK PPC7 Serie Manual De Instalación página 7

Operation
Table 3: Control Pressure set Point and
Tank Pre-Charge Pressure Values (PsI)
Pressure Point Precharge
setting (PsI) Pressure (PsI)
25
30
35
40
45
50
55
60 (Default)
65
70
75
80
85
90
95
OPERaTION
NOTE: Before connecting the pump to the system, 'pump
out' the well to clean it. Be sure that the transducer is
connected to the VFD and sees 0 PSI pressure. Throttle the
pump discharge to reduce the load on the motor. Once the
well is clean, proceed with plumbing the well.
NOTE: Although the system maintains constant pressure at
the transducer, additional demands (more faucets opened,
more sprinklers on line, etc.) may cause pressure drops
in other places in the system. This is due to limitations in
the plumbing and will be more noticeable the further the
demand sites are from the transducer. This is true of any
system; it is not a system failure.
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 3).
setting Parameters
See Table 4 for parameter resets required on some models.
Also see "User Group Parameters," Page 10.
Follow the step-by-step instructions below and on Page 8
to reset parameters.
• The VFD's parameters are factory preset for 1/2 and
1-1/2 HP pumps. Do not reset anything for these
horsepowers.
• For 3/4, 1, and 2 HP pumps, only reset the para m eters
listed in Table 4; use the default settings for all other
parameters.
18
21
25
28
32
35
39
42
46
49
53
56
60
63
67
Table 4: Parameter settings
Reset
H.P. Parameter No.
1/2 None
3/4, 1 9
1-1/2 None
9
2
22
* PENTEK motors only. For other motors, Parameter 9 should
match the motor's Service Factor Amp rating, up to a
maximum of 7.3 amps for Model PPC7-1-7A3 and 13.2
amps for Model PPC7-1-13A2.
NOTE: Turn on the power to the control before starting this
procedure.
NOTE: After you have pushed 'SET' in Step 3, pushing
'MODE' will abort the operation and return the parameter
to whatever the previous setting was. The Display goes to
'E' (Error).
Push 'MODE' a second time to go to 'basic' display mode
(Hz, Amps, or PSI).
Push 'MODE' a third time to return to setting parameters.
sTOP/REsET: This is an Emergency Stop ("E-stop"). It does
not cut off power, but it will stop the pump. After pressing
'STOP/RESET', turn off the power at the circuit breaker
panel and wait at least one minute before turning the
power on again.
NOTICE: When you turn the power on again, the pump
will start up normally; be sure you have corrected the
emergency condition that made you stop it.
Figure 7. Drive Interface
7
New setting
For Parameter
Default
7.3*
Default
12.2*
62.0