Maintenance Monitor List - Noritz NR501-OD Service Manual

Maintenance Monitor List

Data
Item
No.
Gas quality judging result
02
Total Plug-in Time
03
04 Total Combustion Time
05 Total Combustion Time
Number of Ignition Times
07
Number of Ignition Times
08
Fan Rotational Frequency
10
11
12
Total Flow Rate
14
Output (%)
18
Condensate Container clogging
19
Calculated Fan Speed
20
29
Reason why the unit
does not run.
Thermistor - Cold Water
30
Detection Temperature
Thermistor - Hot Water
31
Detection Temperature
Thermistor - Heat Exchanger
32
Detection Temperature
Thermistor - Exhaust
36
Detection Temperature
Thermistor - Air
38
Detection Temperature
39 Fan Motor Current Value
Simple Self-diagnosis Counter
47
Initial Fan Speed Correction
48
Final Fan Speed Correction
49
50 FF No.
51 FF+FB No.
Output
52
60 Position of
87 Circuit Board ID1: Product 1
88 Circuit Board ID2: Product 2
89 Circuit Board ID3: Version
Error Code History 1
91
Error Code History 2
92
Error Code History 3
93
Error Code History 4
94
Error Code History 5
95
Error Code History 6
96
Error Code History 7
97
Error Code History 8
98
*1 A difference in the calculated (#20) and the measured (#10) fan speeds of ±500rpm or less is normal.
*2 When there is no Remote Controller (Using Display Window)
*3 When Remote Controller is in °F/Gallons mode.
*4 When Remote Controller is in °C/Liters mode.
Data Minimum
(Display Reading X Multiplier)
Value for
Multiplier
Unit
Indication
X 100 hour 100 hour
hour 1 hour
X 1000 hour 1000 hour
X 10 time 10 times
X 10000 time 10000 times
rpm 25 rpm
X 10
X 1 time 1 hour
X 1000 time 1000 hour
gal/min 0.1 gal/min
X 0.1
X 0.1 L/min 0.1L/min
X 1 % 1 %
--- ---
rpm 25 rpm
X 10
--- ---
X 1 °F 1°F
X 0.1 °C 0.5°C
X 1 °F 1°F
X 0.1 °C 0.5°C
X 1 °F
1°F
X 0.1 °C 0.5°C
X 1 °F 1°F
X 1 °C 1°C
X 1 °F 1°F
X 1 °C 1°C
X 10 mA 10mA
X 1 mA 1mA
[0:xx]
X 1 %
X 1 %
X 0.1
X 0.1
X 0.1
Step 10Step
X 10
Step 2Step
X 2
[1:xy]
[2:xy]
[3:xy]
60
Disp. Range [000] - [999]
Disp. Range [000] - [1310]
Disp. Range [000] - [999]
Disp. Range [000] - [65]
Disp. Range [000] - [999]
Disp. Range [000] - [65]
Disp. Range [000] - [999]
Disp. Range [000] - [65]
--- OFF [000] , ON [001]
--- [001] : Water inlet temperature is too high
→ If possible decrease water inlet temperature
[002] : Calculated water outlet temperature is too high
→ If possible increase flow rate
[004] : Inlet and Outlet temperature are reversed
→ Check the pipes and re-install it correctly
Disp. Range [014] - [050]
Disp. Range [-10] - [010]
Disp. Range [000] - [999]
Disp. Range [000] - [1999]
[000] - [036]
[100] - [110]
1%
[100] - [110]
1%
0.1
0.1
0.1
A=101,B=102,C=103,
A=201,B=202,C=203,
A=301,B=302,C=303,
If the same error code is repeated, it will appear
in the history list twice.
If it is repeated more than twice, it will only appear
twice.
*2
*3, 4
*2, 3
*4
*1
*2, 3
*4
*2, 3
*4
*2, 3
*4
*2, 3
*4
*2, 3
*4
*2
*3, 4
*2
*3, 4
,Z=126
,Z=226
,Z=326