52
10.4
Monitor screens
During normal operation and stand-
by, the “◄” and “►” buttons can be used to show some boiler information, in-
cluding measured temperatures, settings and data. In the following graphs is explained which values can be shown
in the display. When no button is activated for 2 minutes, the display will return to its status display.
Pressing [◄] or [►] while being at the "operating screen" toggles through the screens below.
When pressing [ON/OFF, RESET, ENTER] or [MENU] at any time the display returns to the base menu.
SCREEN:
1
T 1
F l o w
1 2 3 , 9 ° C
Measured value by the internal flow sensor.
T 2
R e t u r n
1 2 3 , 9 ° C
Measured value by the internal return sensor.
O p e n
Shown when controller doesn’t detect this sensor.
S h o r t e d
Shown when sensor wires or sensor itself is shorted.
SCREEN:
2
Measured value by the external sensor,
or else the
average of both the S1 values.
T 3
E x t e r n a l
1 2 3 , 9 ° C
T 4
C a l o r
i
f
i
1 2 3 , 9 ° C
Measured value by the calorifier sensor.
O p e n
Shown when controller doesn’t detect this sensor.
S h o r t e d
Shown when sensor wires or sensor itself is shorted.
SCREEN:
3
T 5
O u t d o o r
1 2 3 , 9 ° C
Measured value by the outdoor sensor.
T 6
F l u e
1 2 3 , 9 ° C
Measured value by the flue gas sensor.
O p e n
Shown when controller doesn’t detect this sensor.
S h o r t e d
Shown when sensor wires or sensor itself is shorted.
SCREEN:
4
d T F l o w R e t u r n
1 2 3 , 9 ° C
Temp. difference between internal flow & return sen-
sor.
d T F l u e R e t u r n
1 2 3 , 9 ° C
Temp. difference between flue gas & internal return
sensor.
SCREEN:
5
Temp. difference between external & internal return
(
Δ
T LLH).
d T E x t R e t u r n
1 2 3 , 9 ° C
S i g n a l
P o w e r
External supplied 0-10 Volt dc signal.
S e t p o i
"Power" = power input control or "Setpoi" = set point
control.
SCREEN:
6
F a n
s p e e d
9 9 9 9 r p m
Actual fan speed in rpm.
F a n
s p e e d
1 0 0 %
Actual fan speed % of maximum allowable fan speed.
Fan maximum RPM:
The maximum actual rpm may be lower than the maximum rpm set point. The fan may not be able to
reach the maximum rpm set point, because of the unit’s resistance, which is still correct according to the design of that spe-
cific unit.
SCREEN:
7
F l a m e s i g n a l
1 0 0
μ A
Flame signal given in μA.
W a t e r P r e s s u r
1 , 0 b a r
Shows water pressure when sensor is connected.
SCREEN:
8
P u m p 1
H e a t e r
O f
f
Pump 1 (HEATER PUMP) On or Off.
P u m p 1
S i g n a l
1 0 0 %
Modulating signal Pump 1 in (%).
SCREEN:
9
P u m p 2
C a l o r
i
O f
f
Shows when the calorifier pump is "ON" or "OF".
3 -
w a y V a l v e H e a t
i n g
Signal to the 3-way valve: "HEATING" or "HOTWA-
TER".
SCREEN:
10
P u m p 3
S y s t e m
O f
f
Shows when the system pump is "ON" or "OF".
h h : m m D D / M M / Y Y Y Y D a y
hh=hour; mm=minutes; DD=day; MM=month;
YYYY=yr; Day of the week
