S-CB Px 120 Manual
69
Display message
W a t e r p r e s s u r e
f a u l
t
9 9 9 , 5
h r s
Reason:
Water pressure is too low or too high.
Display message
O u t d o o r
s e n s o r
f a i
l
9 9 9 , 5
h r s
Reason:
Outdoor temperature has exceeded the blocking temperature which is set in the pa-
rameters.
Display message
d T
B l o c k
9 9 9 , 5
h r s
Reason:
Temperature difference between flow and return exceeds the blocking value but not the
lock-out value.
Display message
C a s c a d e
B l o c k
9 9 9 , 5
h r s
Reason:
One of the cascaded boilers causes an error, because of a lock-out.
Display message
A P S
f a u l
t
9 9 9 , 5
h r s
Reason:
Activation of the air pressure switch.
Display message
N R V
o r
F a n
f a u l
t
9 9 9 , 5
h r s
Reason:
Non return valve contact signal activated, > 15 seconds will cause a lock-out.
Display message
L i n e
f a u l
t
9 9 9 , 5
h r s
Reason:
Wrong electrical power supply is connected (not 50 or 60Hz, 220-240 Volt).
Display message
G e n
B l o c k
9 9 9 , 5
h r s
Reason:
The general blocking circuit is activated during operation = contact 7-8
10.17.3. M
ESSAGES
The following graphs describe the messages at the boiler display. Depending on the selected and activated op-
tions for the boiler, it is possible that some messages will show up at the display of the boiler. For example a
maintenance message after a certain programmed date has been reached. The boiler will operate independently
of these messages.
MAINTENANCE ATTENTION FUNCTION
The display shows alternating the base screen and this message, while the backlight is blinking.
The boiler is operating, but will count the exceeding hours.
A parameter must be changed, after service, to remove this message.
Display message
N e e d s
M a i n t e n a n
0 . 0
I g n i
t
i o n
c y c l e s
h r s
Reason:
Maintenance option of total amount of ignition cycles has been reached.
Display message
N e e d s
M a i n t e n a n
0 . 0
D a t e
h r s
Reason:
Maintenance option of the date has been reached.
Display message
N e e d s
M a i n t e n a n
0 . 0
B u r n i n g
h o u r s
h r s
Reason:
Maintenance option of total amount of burning hours has been reached.
Display message
N e e d s
M a i n t e n a n
0 . 0
A l
l
h r s
Reason:
One of the abovementioned maintenance options has been reached.
Содержание S-CB Px 120
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