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Noritz Manuals
Water Heater
NR501-OD
Noritz NR501-OD Manuals
Manuals and User Guides for Noritz NR501-OD. We have
6
Noritz NR501-OD manuals available for free PDF download: Service Manual, Owner's Manual, Installation Manual, Replacement
Noritz NR501-OD Service Manual (79 pages)
Brand:
Noritz
| Category:
Water Heater
| Size: 8 MB
Table of Contents
Table of Contents
1
Important Safety Information
2
Safety Tips for Service
2
Post-Service Checks
2
Specifications/Performance Table
3
Performance
5
Hot Water Supply Capability
6
Pressure Loss Characteristics
7
Dimensions
9
Components
12
When Hot Water Flows
15
When the Gas Burner Is on
15
Display Window
15
Operating Principle
16
How to Use
18
Normal Operation
18
Error Codes
18
Miscellaneous
18
Operation Flow Chart
19
Water Heating
20
Shutdown Procedure
20
Freeze Prevention Control
21
Freeze Prevention Heater
21
Wiring Diagram
25
Troubleshooting
28
Error Codes and Checkpoints
28
Circuit Board Checkpoints
29
Error Code Displayed
31
Specification of Dummy Flame
31
Error Code Diagnostic Flow Charts
31
The Fan Does Not Operate When the Hot Water Fixture Is Opened
33
Check Whether the Thermistor - Cold Water Is Normal
34
Outlet Water Temperature Incorrect
35
Ignition Failure
37
Flame Rod Does Not Detect Flame
40
Overheat Prevention Device (Thermal Fuse) Triggered
40
Abnormally High Output Temperature
41
High Limit Switch Triggered
41
Condensate Container Clogging
42
Thermistor - Air Abnormality
42
Thermistor - Cold Water Abnormality
43
Thermistor - Hot Water Abnormality
43
Thermistor - Heat Exchanger Abnormality
44
Thermistor - Exhaust Abnormality
44
Failure of Gas Solenoid Valve
45
Fan Motor Abnormality
46
Circuit Board Abnormality
47
Gas Solenoid Valve Drive Circuit Abnormality
47
Flame Rod Circuit Abnormality
47
Remote Controller Transmission Abnormality
48
Display Window Transmission Abnormality
48
Air Flow Abnormality
49
Combustion Abnormality
49
Unit Shuts off
50
Troubleshooting for Abnormalities Due to Scale Build-Up
55
Water Leak from the Unit
55
Hot Water Is Not Delivered
56
Maintenance Monitor List for Scale Build-Up Trouble
56
Procedure for Flushing the Heat Exchanger
57
The Preparation of the Flushing System
57
Flushing the Heat Exchanger
58
Cleaning the Heat Exchanger
58
Displaying Maintenance Monitors
59
Remote Controller
59
Maintenance Monitor List
60
Circuit Board Replacement Procedure
61
Data Transfer Procedure
61
DIP Switch Settings
61
Manual Programming
62
When Changing the Fan Motor
63
Circuit Board Settings
63
Circuit Board
63
Gas Type
64
Gas Conversions
64
Meter
64
Gas Line Requirements
64
Reference Tools & Sample Calculations
65
For Less than 8” WC Initial Supply Pressure
65
Instructions
65
Sample Calculation
65
For 8” WC – 10.5” WC Initial Supply Pressure
66
Sample Gas Line
66
Maximum Undiluted Propane (LP) Delivery Capacity
66
Manifold Gas Pressure Adjustment
67
Manifold Gas Pressures Maximum and Minimum Values
67
Periodic Inspection
68
Periodic Maintenance
68
Periodic Maintenance
69
Water Drain Valve (with Water Filter)
72
Water Treatment
73
Water Treatment System
73
Residential Use Treatment Guidelines
73
Regular Maintenance
74
Water Quality and Maintenance
74
Adjusting Set Temperature
75
When Setting the Maximum Temperature
75
Changing Default Temperature Setting
75
Preventing Damage from Freezing
76
If Water will Not Flow Because It Is Frozen
76
Preventing Freeze Damage
76
Turning the Unit Back on
78
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Noritz NR501-OD Owner's Manual (32 pages)
TANKLESS GAS WATER HEATER
Brand:
Noritz
| Category:
Water Heater
| Size: 5 MB
Table of Contents
Important Safety Information
2
Table of Contents
7
Contents
7
Unit Components
8
Display Window
9
Initial Operation
10
How To Use (Not Using The Remote Controller)
11
Using The Water Heater
11
How To Use (Using The Optional Remote Controller)
12
Remote Controller
12
Setting And Using The Water Heater
13
Adjusting The Maximum Output Temperature
14
Flow Meter Alarm
16
Muting The Remote Controller
18
Preventing Damage From Freezing
19
Turning the Unit Back on
20
Regular Maintenance
21
Periodic Maintenance
22
Troubleshooting
24
Follow-Up Service
29
Gas Conversion
30
Specifications
31
Noritz NR501-OD Owner's Manual (32 pages)
TANKLESS GAS WATER HEATER
Brand:
Noritz
| Category:
Water Heater
| Size: 5 MB
Table of Contents
Important Safety Information
2
Table of Contents
7
Contents
7
Unit Components
8
Display Window
9
Initial Operation
10
How To Use (Not Using The Remote Controller)
11
Using The Water Heater
11
How To Use (Using The Optional Remote Controller)
12
Remote Controller
12
Setting And Using The Water Heater
13
Adjusting The Maximum Output Temperature
14
Flow Meter Alarm
16
Muting The Remote Controller
18
Preventing Damage From Freezing
19
Regular Maintenance
21
Troubleshooting
24
Follow-Up Service
29
Specifications
31
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Noritz NR501-OD Installation Manual (28 pages)
TANKLESS GAS WATER HEATER
Brand:
Noritz
| Category:
Water Heater
| Size: 5 MB
Table of Contents
Included Accessories
2
Optional Accessories
2
Before Installation
3
Choosing Installation Site
3
Installation Clearances
5
Securing to the Wall
7
Gas Piping
8
Water Piping
12
Water Treatment System
14
Plumbing Applications
17
Recirculation System
17
Electrical Wiring
18
Connecting Remote Controller Cord to Unit
20
Maintenance
21
Trial Operation
21
Lighting Instructions
22
Shutdown Instructions
22
Noritz NR501-OD Installation Manual (28 pages)
TANKLESS GAS WATER HEATER
Brand:
Noritz
| Category:
Water Heater
| Size: 5 MB
Table of Contents
Included Accessories
2
Optional Accessories
2
Before Installation
3
Choosing Installation Site
3
Installation Clearances
5
Gas Piping
8
Water Piping
12
Water Treatment System
14
Plumbing Applications
17
Recirculation System
17
Electrical Wiring
18
Maintenance
21
Trial Operation
21
Lighting Instructions
22
Shutdown Instructions
22
Noritz NR501-OD Replacement (11 pages)
Heat Exchanger Replacement
Brand:
Noritz
| Category:
Water Heater
| Size: 0 MB
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