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16.4
MONITOR SCREENS
During normal operation and stand-by, the "◄" and "►" buttons can be used to show some water heater information, including 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
T
2
R
e
t
SCREEN:
2
T
3
E
x
t
T
4
C
a
l
SCREEN:
3
T
5
O
u
t
T
6
F
l
u
SCREEN:
4
d
T
F
l
o w
d
T
F
l
u
e
SCREEN:
5
d
T
E
x
t
R
S
i
g
n
a
l
SCREEN:
6
F
a
n
s
p
F
a
n
s
p
The maximum RPM may be lower than the maximum RPM set point. The fan may not be able to reach the maximum
RPM set point due to the resistance in the unit, this is still correct according to the design of the unit.
SCREEN:
7
F
l
a
m
e
s
W a
t
e
r
P
SCREEN:
8
P
u m p
1
P
u m p
1
SCREEN:
9
P
u m
p
2
3 -
w
a
y
V
SCREEN:
10
P
u m p
3
h
h
:
m m D
w
u
r
n
e
r
n
a
l
o
r
i
f
i
d
o
o
r
e
R
e
t
u
r
n
R
e
t
u
r
n
e
t
u
r
n
e
e
d
e
e
d
i
g
n
a
l
r
e
s
s
u
r
H
e
a
t
e
r
S
i
g
n
a
l
C
a
l
o
r
i
a
l
v
e
H
e
a
S
y
s
t
e
m
D
/
M M
/
Y
Y
1
2
3
,
9
°
C Measured value by the internal flow sensor.
1
2
3
,
9
°
C Measured value by the internal return sensor.
O
p
e
n
S
h
o
r
t
e
d Shown when sensor wires or sensor itself is shorted.
1
2
3
,
9
°
C Measured value by the external sensor.
1
2
3
,
9
°
C Measured value by the calorifier sensor.
O
p
e
n
S
h
o
r
t
e
d Shown when sensor wires or sensor itself is shorted.
1
2
3
,
9
°
C Measured value by the outdoor sensor.
1
2
3
,
9
°
C Measured value by the flue gas sensor.
O
p
e
n
S
h
o
r
t
e
d Shown when sensor wires or sensor itself is shorted.
1
2
3
,
9
°
C
1
2
3
,
9
°
C Temp. difference between flue gas & internal return
1
2
3
,
9
°
C
P
o
w
e
r
S
e
t
p
o
i
9
9
9
9
r
p m Actual fan speed in rpm.
1
0
0
%
1
0
0
μ
A Flame signal given in μA.
1
,
0
b
a
r
O
f
f
1
0
0
%
O
f
f
t
i
n
g
O
f
f
Y
Y
D
a
y
Shown when controller doesn't detect this sensor.
Shown when controller doesn't detect this sensor.
Shown when controller doesn't detect this sensor.
Temp. difference between internal flow & return
sensor.
sensor.
Temp. difference between external & internal return
(ΔT LLH).
External supplied 0-10 Volt dc signal.
"Power" = power input control or "Setpoi" = set point
control.
Actual fan speed % of maximum allowable fan speed.
Shows water pressure when sensor is connected.
Pump 1 (HEATER PUMP) On or Off.
Modulating signal Pump 1 in (%).
Shows when the calorifier pump is "ON" or "OF".
Signal
to
the
3-way
"HOTWATER".
Shows when the system pump is "ON" or "OF".
hh=hour;
mm=minutes;
YYYY=yr; Day of the week
valve:
"HEATING"
or
DD=day;
MM=month;
55
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