Vaillant aquaPLUS VUI 362-7 Service Manual Page 49

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Diagrams 11
Instructions for installation and servicing aquaPLUS VUI 362-7 49
11 Diagrams
11.1 Functional Flow diagram: aquaPLUS VUI 362-7
POWER SUPPLY
F2A
L
2
N
1
MAIN SWITCH
MAIN
TRANSFORMER
230V
20V
AIR
PRESSURE
SWITCH
FAN
PUMP
NTC FLOW
TEMPERATURE
SENSOR
FLAME
SENSOR
GAS
VALVE
DHW
Aqua
Sensor
F1,25A
NTC RETURN
TEMPERATURE
SENSOR
Burner lock out
indicator
Hot water
demand indicator
Ignition indicator
MAIN SWITCHBOARD
IGNITION
ELECTRODES
Legend
b blue
br brown
y/g yellow/green
r red
p pink
or orange
t transparent
bl black
gr grey
w white
gr
b
br
y/g
bbr
y/g
br
t
w
p
t
br
br
r
b
br
y/g
gr
p
p
r
CONTROL BOX
DIVERTER
VALVE
bl
bl
bl
bl
NTC
TANK
TEMPERATURE
SENSOR
or
plug in
connector
plus / minus buttons
reset button
info button
Hot water
demand indicator
vi violet
NTC
DHW
TEMPERATURE
SENSOR
vi
DHW
PUMP
b br y/g
Central heating
demand indicator
r
bl
b
gr
Fig. 11.1: Functional Flow diagram VUI 362-7
834702_33GB_012005.qxd 09.03.2005 16:26 Uhr Seite 49
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