Lochinvar Compact ASME 100 Series Manuals

Manuals and User Guides for Lochinvar Compact ASME 100 Series. We have 1 Lochinvar Compact ASME 100 Series manual available for free PDF download: Service Handbook

Lochinvar Compact ASME 100 Series Service Handbook (88 pages)

COMMERCIAL ELECTRIC WATER HEATERS

Brand: Lochinvar | Category: Water Heater | Size: 21 MB

Table of Contents
2
Introduction
3
Qualifications - Qualified Service Agent
3
Service Warning
3
Important Service Reminder
3
Instruction Manual
4
Tools Required
4
Installation Considerations
5
Closed Water Systems
5
Thermal Expansion
5
Electrical Requirements
6
Grounding
6
Power Supply
6
Pre Service Checks
7
Wiring Connections
7
Service Precautions
7
Water Heater Construction
8
Electronic Controls
8
Heating Element Configurations
8
Power Conversions
8
Operation & Service
11
Principles of Electricity
11
Voltage
11
Amperage
11
Ohms
11
Wattage
11
Ohms Law
12
Single and Three-Phase Power
13
Field Conversions
13
Checking Single Phase (1Ø) Power
13
Checking Three Phase (3Ø) Power
15
Fuses
16
Ohm Meter Method
16
Volt Meter Method
16
Heating Elements
17
Heating Element Construction
17
Heating Element Wiring
18
Heating Element Ratings
24
Heating Element Configurations
24
Heating Element Amperage
25
Heating Element Voltage
28
Heating Element Resistance
30
Heating Element Ground Test
32
Replacing Heating Elements
33
Heating Element Sensors
34
Element Sensor Construction
34
Element Sensor Functions
34
Element Sensor Operation
34
Contactors
36
Contactor Construction - How They Work
36
Contactor Configurations
37
Contactor Inspection
38
Contactor Coil Voltage Test - at Contactor
39
Contactor Coil Voltage Test - at CCB
40
Transformers
41
120 Vac Transformer Wiring - 208/240/277 Volt Models
41
120 Vac Transformer Wiring - 480 Volt Models
42
VAC Control Circuit Transformer Test
43
24 Vac Transformer Test
44
Immersion Temperature Probe
45
ECO High Temperature Limit Switch
45
Temperature Sensor
45
Temperature Sensor Resistance Test
46
Water Temperature
46
Temperature Sensor DC Voltage Test
47
ECO Continuity Test
47
ECO Voltage Test
48
Low Water Cut off (LWCO)
49
LWCO Operation
49
LWCO Inspection and Cleaning
49
Powered Anode Rod
50
Rust & Corrosion
50
Powered Anode Rod Operation
50
Inspection and Cleaning
50
Electronic Controls
51
Central Control Board (CCB)
52
CCB Socket & Wiring Terminal Identification
53
CCB Enable/Disable Circuit(S) Test
55
Checking Power and Ground to the CCB
56
UIM - User Interface Module
57
Electronic Control System
58
Heating Element Operation
58
Control Options
58
Control System Features
59
Control System Navigation
59
The Desktop Screen
60
Temperatures Menu
63
Temperature Settings
64
Heater Status Menu
65
Economy Mode Setup Menu
66
Alarm Output Setup Menu
71
Display Settings Menu
72
Heater Information Menu
73
Current Fault / Alert Menu
74
Restore Factory Defaults Menu
75
Troubleshooting
76
Common Service Problems
76
No Hot Water
76
Not Enough Hot Water
76
Water Heater Trips Breaker
76
Contactor Chatter
76
Control System Diagnostics
77
Fault Conditions
77
Alert Conditions
77
Resetting Control System
77
Fault and Alert Messages
79
LWCO Fault
82
Error/Fault Codes
84

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Lochinvar Compact ASME 100 Series Manuals

Lochinvar Compact ASME 100 Series Service Handbook (88 pages)

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