Bradley SN2003/TT Manual De Instalación página 10

SN2003/TT, SN2023/TT
Troubleshooting – Solenoid Valve
Turn off water supplies to the
unit before troubleshooting.
Item Qty. Part No.
1 1 118-307
1 1 118-307A
2 1 269-983
3 1 269-577
4 1 269-578
5 1 269-1729
6 1 269-1730
7 1 269-579
8 3 160-447
9 1 125-165
10 1 110-231
Problem Cause
An individual Debris is
operating trapped
station fails between the
to shut off diaphragm
and drips . and the valve
seat .
An individual A failed coil for
operating the valve or
station fails loose electrical
to turn on . connection to
the terminal .
10
S65-113
Description
Valve Body, 1/4" Closed
Valve Body, 1/4" Thru
Diaphragm
Armature
Spring
Armature Housing
Clamp, Armature
Housing
Coil, Solenoid Valve
Screw, #8 x 5/8
O-Ring, #2-013
Compression Nut 1/4"
Tube
Remove debris between diaphragm and the valve seat .
1 . Remove the three #8 Phillips-head screws that hold the solenoid valve assembly together . Be
careful not to lose the armature or spring .
2 . Remove the diaphragm . Remove any particles that have been trapped between the diaphragm
and the valve seat . Rinse off the diaphragm and inspect for damage . Make sure the center
orifice and both small side orifices are open .
3 . Reassemble in reverse order (do not overtighten the Phillips-head screws or the plastic valve
body may crack) . Tighten until the armature plate makes contact with the plastic body .
4 . Reconnect the wiring .
Test the station to determine the cause .
1 . Disconnect the wires from the coil of an adjacent valve . Disconnect the wires from the problem
valve and reconnect to the adjacent valve .
2 . Turn on electrical and water supplies to the unit . Pass your hand in front of the sensor of the
problem station, and the adjacent station should turn on .
3 .
If the adjacent station turns on and cycles normally, replace the coil on the problem valve .
If the adjacent valve fails to turn on, inspect the wires from the sensor cable and do the following:
• make sure there are no breaks and that the fully insulated disconnect terminals are firmly
crimped in place;
• turn off the electrical and water supplies;
• reconnect to the adjacent valve and turn on the water supplies to the unit;
• pass your hand in front of the sensor . If the station still fails to turn on, replace the sensor .
10/20/2014
Repair Kits
S07-067 S07-067A
(Closed (Thru
Body) Body)
- X -
- - X
X X X
X X X
X X X
- X X
- X X
- X X
- X X
- X X
- - -
Solution
8
7
8
9
Bradley • 215-1758 Rev. A; ECN 14-00-007
Installation
6
5
4
3
2
1
10