Download Vaillant ECOmax VUW 286 E Technical data

fig. 87
GW 472/0
7.17.1 Replacement of diverter
valve diaphragm
(fig. 87).
Remove
diverter valve as in Section
•
7.17
• Remove the 4 screws (1).
• Lift top off diverter valve and remove diaphragm.
• Replace in reverse order.
• Carry out electrical checks
(see Section 5.1).
• Refill and repressurise the boiler
(see Section 5.4).
7.18 Replacement of pressure
gauge (fig. 88)
•
•
•
•
•
drain boiler as in Section 7.1.2.
Remove front casing as in Section
7.1.3.
Lower front control panel as in
Section 7.1.6.
Undo union (1) at rear of pressure
gauge, depress side springs on
pressure gauge with a screwdriver
and pull forward to remove.
Replace in reverse order.
Refill and repressurise the boiler
(see Section 5.4).
fig. 88
GW 473/0
• Turn off boiler as in Section 7.1.1.
• Release CH water pressure and
7.19 Replacement of water
section
•
•
•
•
supply.
Turn off mains water isolating valve
and open a hot tap.
Remove front casing as in Section
7.1.3.
Lower front control panel as in
Section 7.1.6.
Undo union (1, fig. 89) remove
spring clip (1, fig. 90) by lifting,
pull pipe (2, fig. 90) forward and
remove.
fig. 89
GW 458/0
• Isolate boiler from the mains
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