Pentair STA-RITE PRESSOMAT PMS20 PVM 3-5 Instructions De Service page 32

PM/5
PM12
contact (OFF).
Open a small collector by bringing the pressure to the level (start pump) that we want to
assign to pressure switch n.1
Tighten screw B of pressure switch n.1 to the point where its electric contact closes (ON).
With a pump in MANUAL mode, slowly bring the circuit pressure to the starting level
(arrest pump) that we want to assign to the first pump.
Unscrew screw A to the point where pressure switch n. 1 opens.
Repeat the operation on the other pressure switch.
c) Calibration of the pressure switches mod. XMP 12
XMP.06
XMP.12
MANUAL mode, slowly bring the collector discharge pressure to the opening level
(stop/arrest pump) that we want to assign to pressure switch n.1 (the pressure switch
contact must be closed - ON -)
Unscrew screw B of pressure switch n. 1 to the point where its electric contact opens
(OFF).
Open a small collection/connection and slowly bring the circuit pressure to the closing
level (start pump) that we want to assign to pressure switch n. 1
Unscrew screw A to the point where pressure switch n.1 closes.
Repeat the operation on the other pressure switch.
CHAP. 7 – ACTIVATION OF ELECTROPUMP TEMPORISATION
The electronic card foresees the possibility of temporising the functioning of the two pumps
from a minimum of 3'' up to a maximum of 90''.
28
Tighten screw A of the pressure switch to half-way
B
position.
A
Unscrew screw B of the pressure switch.
Close all the collection points and with a pump in
MANUAL mode, slowly bring the discharge collector
pressure up to reach the opening of the pressure switch
Tighten screw A of the pressure switch to half-way
B
position.
A
Tighten screw B of the pressure switch to half-way
position.
Close all the connection points and with a pump in