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Water Heater
T-M50 ASME
A.O. Smith T-M50 ASME Manuals
Manuals and User Guides for A.O. Smith T-M50 ASME. We have
2
A.O. Smith T-M50 ASME manuals available for free PDF download: Service Manual, Troubleshooting Manual
A.O. Smith T-M50 ASME Service Manual (91 pages)
On-Demand Water Heater
Brand:
A.O. Smith
| Category:
Water Heater
| Size: 4.15 MB
Table of Contents
T-M50 / T-M50 Asme
2
Table of Contents
2
Specifications
3
Exterior View
4
Interior View
5
List of Main Components in the Interior View
6
Schematic Diagram
8
Wiring Diagram
9
Wiring Diagram Checkpoints for Diagnosis
10
Resistance Values of the Temperature Thermistors
12
Operational Flow Chart
13
Component Specifications
14
Burners
15
Gas Manifold
16
Fan Motor
17
Gas Valve Assembly
18
Flame Rod
19
AFR Rod
20
Heat Exchanger
21
Flow Sensor
22
Water Control Valve
23
Thermistors
25
Hi-Limit Switch
26
Overheat Cutoff Fuse
27
Freeze Protection Heaters
28
Computer Board for Burner Control
29
Computer Board for Multiple Controls
30
Transformer
31
Gfi
32
Igniter
33
Freeze Protection Thermostat
34
Surge Box
35
Fault Analysis & Specifications
36
12. Controls and Settings
47
Controls and Settings
47
Diagnosis Using the Remote Controller
48
Displaying Error Codes
51
The Error-Code Button: Verifying Functionality of Computer Board, Displaying Error Code History, and Clearing Error Code History Memory
54
Clearing the "101" and "991"Error Code
55
AFR Rod Function
56
Dipswitch Settings of the Left/Right Computer Boards
57
Dipswitch Settings of the Central Computer Board
58
Assigning Unit Numbers in the Easy-Link System
60
A) ON/OFF Conditions: Overview
61
B) ON/OFF Conditions: BTU Requirements
62
Conditions that Stop the T-M50 from Operating
63
Pump Control ON/OFF Conditions
64
Multi-Unit System ON/OFF Conditions
65
Operation Time for Unit Rotation
67
Individual Unit Operation in Multiple-System While the Multi-Unit Controller (TM-MC01) Is under Abnormal Conditions (Individual Operation Mode)
68
High Altitude Region Support Software (FM+, FM++ and FM+++)
69
Alarm Port Terminal
70
How to Use the "External Fan Control" in T-M50
71
Relay Selection for the Pump Control Connection
72
Adjusting Manifold Gas Pressure
73
Manually Adjusting the Fan Motor Speed
75
Freeze Protection System
76
Freeze Protection for Recirculation Systems
79
Draining the Unit and Cleaning the Inlet Water Filter
80
Components Diagrams
81
Burner Assembly
82
Water Way Assembly
84
Parts List
85
Revisions
91
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A.O. Smith T-M50 ASME Troubleshooting Manual (37 pages)
On-Demand Water Heater
Brand:
A.O. Smith
| Category:
Water Heater
| Size: 1.52 MB
Table of Contents
Table of Contents
2
Specifications
3
Introduction
4
Normal Operation
5
Activation
5
Operation
5
Shutdown
5
Installation
6
Venting
6
Gas Line
6
Water Line
6
Power Supply
6
Troubleshooting
7
Preliminary Checklist
7
General Problems
8
Error Codes
12
Procedures
20
Verifying Proper Dipswitch Settings
20
Draining the Unit
22
Cleaning the Filter
22
Checking for a Cross Connection
22
Check for Reverse Connection
22
Check Gas Supply Pressure
23
Purge the Gas Line of Air
23
Adjusting Manifold Pressure
24
Resetting the Computer Board
24
Checking the OHCF
25
Maintenance
26
Rod Assembly
26
Burner & Rod Assembly
27
Heat Exchanger
29
Flow Sensor
36
Descaling the Unit
37
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