NEO
fl
o
Water
Heater
22
September
2015
DIAGNOSTICS
Th
e Display can provide additional information whilst Running, In Standby and In Error, when the buttons are
pressed.
Th
e table below details the sub-sections available.
Buttons
MODE
+
-
Service A
Service B
Reset
Standby
Increase
Decrease -----
< 1 sec Installer
-----
setpoint
setpoint
> 3 secs Ins
Running
Increase
Decrease -----
< 1 sec, Installer
setpoint
setpoint
> 3 secs, Ins > 3 secs, Error History
In Error
-----
------ -----
----- < 1 sec, Resets Error
>
3
secs,
Error
History
Pressing Service A, Service B and Reset together will, test all the segments of the LCD display.
Installer Mode
(Service B pressed < 1 second)
Th
e symbol appears on the Display.
Press Service B to step through the information.
Th
e Display will step out of this mode if untouched for
60 seconds or the Reset button is pressed.
Default
01
Flame current, mA
02
High Limit Sensor 1, °C
03
High Limit Sensor 2, °C
04
Tank Temperature, °C
05
Not used
- -
06
Esys type
7
07
Flue Switch
Off
08
DHW Kp
60
09
DHW Ki
245
10
Fan Kp Up
25
11
Fan Ki Up
220
12
Fan Kp Down
30
13
Fan Ki Down
244
In Mode
(Service B pressed > 3 seconds)
Th
e
symbols appear on the display.
Press Service B to step through the information.
Press B or - to alter the setting.
Th
e Display will step out of this mode if untouched for
60 seconds or the Reset button is pressed.
Default
P 01
Ignition Level, %
50
P 02
DHW Setpoint, °C
60
P 03
DHW Hysteresis
5
P 04
DHW Maximum fan speed %
100
P 05
Anti-Legionella enabled
0
P 06
Anti-Legionella timer
168
P 07
Anti-Legionella temperature °C
75
P 08
Clear Error History
Error History
(Reset pressed > 3 seconds)
Th
e last eight errors can now be recalled by
pressing button Service B.
Th
e format of the Display is Hn.##
Where n is error record 1 to 8, one being the most re-
cent, and ## is the error number.
Th
e Display will step out of this mode if untouched for
30 seconds or the Reset button is pressed.
Th
e Error History can be cleared in In mode.
1
No Flame established.
2
False Flame detected
3
Overheat sensor > 95C or short circuit.
5
Incorrect Fan speed detected
7 Flue
Th
ermostat tripped
8
Flame circuit error
9
Gas Valve not detected
13
Reset used more than 5 times in 15 mins
21
Control Internal error.
23
Overheat Sensor mismatch
25
Control/Display software mismatch
31
Overheat Sensor1 open circuit.
32
Control Sensor short or open circuit.
33
Overheat Sensor2 open circuit.
34
Low Mains Voltage detected.
99
Communication error between controls.
Содержание NEOflo SC25/200
Страница 32: ...Published date November 2015...