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dve-80
AOSMITH dve-80 Manuals
Manuals and User Guides for AOSMITH dve-80. We have
1
AOSMITH dve-80 manual available for free PDF download: Service Handbook
A.O. Smith dve-80 Service Handbook (76 pages)
commercial electric Water Heaters 100 SERIES
Brand:
A.O. Smith
| Category:
Water Heater
| Size: 4.37 MB
Table of Contents
Table of Contents
3
Introduction
4
Qualifications
4
Service Warning
4
Tools Required
5
Installation Considerations
6
Closed Water Systems
6
Thermal Expansion
6
Electrical Requirements
7
Pre Service Checks
8
Wiring Connections
8
Service Precautions
8
Water Heater Construction
9
Surface Mount Control Models
10
Electronic Control Models
11
Operation & Service
12
Principles of Electricity
12
Single and Three Phase Power
14
Checking Single Phase Power
15
Checking Three Phase Power
16
Phase Conversions - Surface Mount Control Models
17
Phase Conversions - Electronic Control Models
18
Fuses
19
Surface Mount Thermostats
20
Thermostat & ECO Test
21
Heating Elements
22
Heating Element Construction
22
Heating Element Amperage Test
25
Heating Element Voltage Test
26
Heating Element Resistance & Ground Test
27
Replacing Heating Elements
28
Element Sensors
29
Element Sensor Operation
30
Contactors
31
Contactor Configurations
32
Contactor Inspection
33
Contactor Coil Voltage - at Contactor
34
Contactor Coil Voltage - at CCB
35
Transformers
36
120 VAC Control Circuit Transformer Wiring
36
VAC Control Circuit Transformer Test
37
24 VAC Transformer Test
38
Immersion Temperature Probes
39
Temperature Sensor Resistance Test
40
Temperature Sensor DC Voltage Test
41
ECO Continuity Test
41
ECO Voltage Test
42
Electronic Controls
43
CCB - Central Control Board
44
CCB Socket & Wiring Terminal Identification
45
CCB Enable Disable Circuit(S) Test
47
Checking Power and Ground to the CCB
48
UIM - User Interface Module
49
Electronic Control System
50
Control System Features
50
Control System Navigation
50
The Desktop Screen
51
Status Icons
52
Operating States
53
Control System Menus
53
Temperatures Menu
54
Temperature Settings
55
Heater Status Menu
56
Economy Mode Setup Menu
57
Setpoint Adjustment Value
58
Time Clock Settings
59
Daily Operating Mode Settings
60
Alarm Output Setup Menu
61
Display Settings Menu
62
Heater Information Menu
63
Current Fault/Alert Menu
64
Fault History Menu
64
Fault Occurrence Menu
64
Restore Factory Defaults Menu
65
Factory Default User Settings
65
Troubleshooting
66
Common Service Problems
66
Surface Mount Control Models
66
Electronic Control Models
67
Fault Conditions
67
Alert Conditions
67
Resetting the Control System
67
Control System Unresponsive
67
UIM Display Is Blank
67
UIM Is Inoperable
68
Heating Cycle Disabled
68
Fault & Alert Messages
69
No Current Detected
69
Temp Probe Open
70
Temp Probe Short
70
Energy Cut out (ECO)
71
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