Watts CEN2000 Water Heater Manuals

Manuals and User Guides for Watts CEN2000 Water Heater. We have 3 Watts CEN2000 Water Heater manuals available for free PDF download: Installation, Operation And Maintenance Manual, Installation Manual

Watts CEN2000 Installation, Operation And Maintenance Manual (131 pages)

with Edge [ii] Controller

Brand: Watts | Category: Water Heater | Size: 3 MB

Table of Contents
2
Foreword
5
Section 1: Safety Precautions
8
Warnings & Cautions
8
Emergency Shutdown
9
Prolonged Shutdown
9
Important - for Massachusetts Installations
10
Section 2: Installation
12
Receiving the Unit
12
Unpacking
12
Site Preparation
12
Installation Clearances
13
Setting the Unit
15
Housekeeping Pad Requirements
15
Lifting Provisions
16
Piping Connections
17
Internal Recirculation Water Loop
18
Test Hose Connection
19
Dual Inlet Return Piping
19
Sequencing Isolation Valve
20
Temperature and Pressure Relief Valve Installation
20
Condensate Drain and Piping
21
Gas Supply Piping
22
Gas Supply Specifications
23
External Gas Supply Regulator
23
Massachusetts Installations Only
24
Manual Gas Shutoff Valve
24
Ac Electrical Power Wiring
25
Power Panel Locations
25
Electrical Power Panel Internal Components
25
Field Control Wiring - I/O Board
26
I/O Board Connections
28
Flue Gas Vent Installation
31
Massachusetts Installations
31
Combustion Air
32
Ducted Combustion Air
32
Sequencing Isolation Valve Installation
32
Water Heater Pump Relay
34
Next Steps
34
Section 3: Edge Controller Operation
35
Login and Password Entry
36
Section 4: Start Sequence
37
Start Sequence
37
Start/Stop Levels
40
Start/Stop Levels - Air/Fuel & Energy Input
41
Section 5: Initial Start-Up
42
Initial Start-Up Requirements
42
Tools & Instruments for Combustion Calibration
43
Required Tools & Instrumentation
43
Installing Gas Supply Manometer
43
Accessing the Analyzer Probe Port
44
Recommendations for WHM Operation
44
Combustion Calibration
44
Instructions for Combustion Calibration
45
Reassembly
48
Over-Temperature Limit Switches
48
Adjusting the Automatic Reset Limit Switch Temperature
49
Resetting the Manual Reset Limit Switch
49
Changing the Readout between Fahrenheit and Celsius
50
Temperature Control Calibration
50
Setting the Outlet Water Temperature Setpoint
50
Minimum Load Adjustment
51
Maximum Load Adjustment
52
Modes of Operation
52
Constant Setpoint Mode
52
Remote Setpoint Mode
53
Section 6: Safety Device Testing
54
Testing Safety Devices
54
Low Gas Pressure Test
55
High Gas Pressure Test
56
Low Water Level Fault Test
57
Water Temperature Fault Test
58
Interlock Tests
59
Remote Interlock Test
59
Delayed Interlock Test
59
Flame Fault Test
60
Air Flow Fault Tests-Blower Proof & Blocked Inlet Switches
61
Blower Proof Switch Test
61
Blocked Inlet Switch Test
62
Ssov Proof of Closure Switch Check
63
Purge Switch Open During Purge
63
Check Ignition Switch Open During Ignition
64
Safety Pressure Relief Valve Test
64
Section 7: Maintenance
66
Maintenance Schedule
66
Igniter-Injector
67
Flame Detector
68
O 2 Sensor Maintenance
68
Safety Device Testing
69
Burner Inspection
69
Condensate Drain Trap
70
Air Filter Cleaning and Replacement
71
Shutting Water Heater down for Extended Period
72
Returning the Water Heater to Service after Shutdown
72
Recommended Periodic Testing
73
Recommended Spare Parts
74
Section 8: Water Heater Management
76
General Description
76
Whm Principles of Operation
77
Whm Features
77
Valve Feedback
77
Valve Supervisor
77
Temperature Sensor Calibration
78
Manual Mode Password Required
78
Auto-Manager Transfer
78
Run Hours and Run Cycles
78
High Temperature Governor
79
Whm Status Displays
79
Water Heater Management Alternating Status Displays
79
Whm Parameters
80
Whm Hardware Installation & Set-Up Instructions
85
Installation Notes
85
Hardware Installation
85
WHM Modbus Network Wiring
85
Control and Power Wiring
87
Whm Programming & Start-Up
90
WHM Manager Configuration
90
WHM Client Configuration & Start-Up Procedure
91
Troubleshooting
92
Sequencing Valve Description & Operation
92
Sequencing Valve Operating Characteristics
93
Section 9: O 2 Trim Operation
94
O 2 Trim Introduction
94
Operation Details
95
O2 Sensor Calibration
96
Trim Menu Values and Defaults
96
Trim Maintenance and Troubleshooting
99
Section 10: Troubleshooting
102
Introduction
102
Fault Correction
102
Additional Faults Without Specific Fault Messages
111
Appendix A - Dimensions and Clearance
115
Appendix B - Wiring Diagrams
117
Appendix C - Centurion 2000 Part List
121
Appendix D - Temperature Sensor Resistance/Voltage Chart
129
Notes
130
Change Log
131

Watts CEN2000 Installation, Operation And Maintenance Manual (124 pages)

Centurion Water Heaters with Edge Controller

Brand: Watts | Category: Water Heater | Size: 3 MB

Table of Contents
2
Foreword
5
Section 1: Safety Precautions
8
Warnings & Cautions
8
Emergency Shutdown
9
Prolonged Shutdown
9
Important - Requirements for Massachusetts Installations
10
Section 2: Installation
11
Receiving the Unit
11
Unpacking the Unit
11
Site Preparation
11
Lifting Provisions
14
Piping Connections
15
Temperature and Pressure Relief Valve Installation
18
Condensate Drain and Piping
19
Gas Supply Piping
20
Ac Electrical Power Wiring
22
Field Control Wiring - I/O Board
23
Flue Gas Vent Installation
28
Combustion Air
29
Sequencing Isolation Valve Installation
30
Water Heater Pump Relay
31
Next Steps
31
Section 3: Edge Controller Operation
32
Login and Password Entry
33
Section 4: Start Sequence
34
Start Sequence
34
Start/Stop Levels
37
Start/Stop Levels - Air/Fuel & Energy Input
38
Section 5: Initial Start-Up
40
Initial Start-Up Requirements
40
Tools & Instruments for Combustion Calibration
41
Combustion Calibration
42
Over-Temperature Limit Switches
47
Temperature Control Calibration
49
Modes of Operation
51
Section 6: Safety Device Testing
53
Testing Safety Devices
53
Low Gas Pressure Test
54
High Gas Pressure Test
55
Low Water Level Fault Test
56
Water Temperature Fault Test
57
Interlock Tests
58
Flame Fault Test
58
Air Flow Fault Tests-Blower Proof & Blocked Inlet Switches
59
Ssov Proof of Closure Switch Check
61
Purge Switch Open During Purge
61
Check Ignition Switch Open During Ignition
62
Safety Pressure Relief Valve Test
63
Section 7: Maintenance
64
Maintenance Schedule
64
Igniter-Injector
65
Flame Detector
66
O 2 Sensor Maintenance
66
Safety Device Testing
67
Burner Inspection
67
Condensate Drain Trap
67
Air Filter Cleaning and Replacement
68
Shutting Water Heater down for Extended Period (One Year or More)
69
Recommended Periodic Testing
69
Recommended Spare Parts
70
Section 8: Water Heater Management
71
General Description
71
Whm Principles of Operation
72
Whm Features
72
Whm Status Displays
74
Water Heater Management Alternating Status Displays
74
Whm Parameters
75
Whm Hardware Installation & Set-Up Instructions
80
Whm Programming & Start-Up
84
Troubleshooting
86
Sequencing Valve Description & Operation
86
Section 9: O 2 Trim Operation
88
Operation Details
88
O 2 Sensor Calibration
89
Trim Menu Values and Defaults
90
Trim Maintenance and Troubleshooting
96
Section 10: Troubleshooting
98
Introduction
98
Additional Faults Without Specific Fault Messages
107
Appendix A - Dimensions and Clearance
109
Appendix B - Wiring Diagrams
111
Appendix C - Centurion2000/1600 Parts List
115
Appendix D - Temperature Sensor Resistance/Voltage
122
Notes
123

Watts CEN2000 Installation Manual (6 pages)

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