Section 3 - Pressure Switch Replacement - Stuart Turner MONSOON EXTRA S1.4 bar SINGLE Installation Instructions Manual

SECTION 3 - PRESSURE SWITCH REPLACEMENT

The parts required to replace the pressure switch are:
ITEM
19 Pressure Switch
20 1/8 Seal
•
DISASSEMBLY
•
Isolate electrical supply before fitting.
•
The supply cord and internal wiring within the terminal box are routed
and secured to ensure compliance with the electrical standard
wiring, all cable routing and securing details are carefully noted to
To prepare the pump to accept the pressure switch, isolate and drain down the water. It may
be easier at this stage to remove the pump completely from its location.
Now disconnect the electrical connections from the pressure switch to the P.C.B.
The pressure switch cable restraint/sealing system will vary across model types.
Note the cable route, clamping and sealing method to enable re-assembly to same pattern
and proceed as follows:
The pump uses a rubber grommet for sealing and a cable strap for restraint. Release
cable strap and gently slide cable out through sealing grommet, to avoid damage to
enable re-use.
Damaged components must be replaced. Contact Stuart Turner for
replacements not supplied with kit.
Using a suitable open ended spanner (apply to brass switch part only), rotate the pressure
switch anticlockwise.
•
MAINTENANCE AND CARE UPON ASSEMBLY
Depending on the age of your pump it may have a sealing washer (item 20) or 'O'-ring (item 21)
always replace like for like.
Ensure the sealing faces for the pressure switch are clean before using the replacement sealing
washer.
Now tighten the pressure switch to 7 Nm torque.
Wiring of the switch can now be completed.
The strain relief bush, as supplied will suit the new switch and must be fitted.
EN 60335-1. It is essential that prior to any disturbance of this internal
ensure re-assembly to the same factory pattern is always maintained.
1
Fig. 9
QTY ITEM
1 21 'O'-Ring
1
2
- 6 -
(ID 10.1 mm)
QTY
1
Cont ...