Stuart Turner 28474, Руководство по установке

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SECTION 4 - REED SWITCH REPLACEMENT
The parts required to replace the reed switch are:
ITEM QTY ITEM QTY
23 Screws
(K40 x 16 mm)
4 28 Reed Switch 1
27 Reed Switch Tie Wrap 1 29 Strain Relief Bush 3
•
WIRING DIAGRAMS
N
S1 S2 S2 S3 S3
MAIN WINDING
THERMOTRIP
CAPACITOR
START WINDING
FLOWSWITCH
REED (S3)
BLUE
BROWN
BL
AC
K
RE
D
GREEN/
YELLOW
BLUE
BROWN
L
M
N
N
S2 S3 S3 S2
L
E
N
FLOWSWITCH
REED (S2)
S1 S1
PRESSURE
SWITCH (S1)
230 VAC/1PH/50Hz
SUPPLY
S1
Fig. 21 Twin
•
DISASSEMBLY
•
Isolate electrical supply before fitting replacement part.
•
Replacing the reed switch components should only be carried out by a
competent person.
•
The supply cord and internal wiring within the terminal box are routed
and secured to ensure compliance with the electrical standard
EN 60335-1. It is essential that prior to any disturbance of this internal
wiring, all cable routing and securing details are carefully noted to
ensure reassembly to the same factory pattern is always maintained.
•
Remove four screws and carefully remove terminal box lid (item 23).
•
Note the cable routing within the terminal box (Figs. 21 & 22).
•
Slacken the two screws retaining the reed switch wires on the PCB.
•
Remove the strain relief bush and reed switch cable by gripping with pliers (Fig. 23) and
pulling downwards from the terminal box.
•
Remove the existing reed switch by cutting the securing tie wrap and pulling away from
the flow switch body (Fig. 23)
MAIN WINDING
THERMOTRIP
CAPACITOR
START WINDING
FLOWSWITCH
REED (S3)
BLUE
BROWN
BLA
CK
RED
GREEN/
YELLOW
BLUE
BROWN
L
M
N
N
S3 S3
L
E
N
S1 S1
PRESSURE
SWITCH (S1)
S1 S2 S2 S3 S3 S1
230 VAC/1PH/50Hz
SUPPLY
Fig. 22 Single