Lochinvar Shield SWR125N Manuals

Manuals and User Guides for Lochinvar Shield SWR125N. We have 1 Lochinvar Shield SWR125N manual available for free PDF download: Installation & Service Manual

Lochinvar Shield SWR125N Installation & Service Manual

Lochinvar Shield SWR125N Installation & Service Manual (84 pages)

Brand: Lochinvar | Category: Water Heater | Size: 20 MB

Table of Contents

Table of Contents
2
Please Read before Proceeding
3
Hazard Definitions
3
The Shield - How It Works
4
Ratings
7
Determine Water Heater Location
8
Closet and Alcove Installations
8
Provide Clearances
8
Flooring and Foundation
10
Remove Water Heater from Wood Pallet
10
Prevent Combustion Air Contamination
10
Using an Existing Vent System to Install a New Water Heater
11
Removing Water Heater from Existing Common Vent . 11 Combustion & Ventilation Air Requirements
12
General Venting
15
Install Vent and Combustion Air Piping
16
Requirements for Installation in Canada
17
Sizing
17
Min./Max. Combustion Air & Vent Piping Lengths
17
Materials
18
Optional Room Air
19
Pvc/Cpvc
20
Polypropylene
21
Stainless Steel Vent
22
Sidewall Direct Venting
23
Vertical Direct Venting
33
System Piping
37
General Piping
37
Scalding
37
Water Chemistry
38
Piping Components
38
Piping Diagrams
39
GAS CONNECTIONS Connecting Gas Supply Piping
42
Natural Gas
43
Pipe Sizing for Natural Gas
43
Natural Gas Supply Pressure Requirements
43
Propane Gas
43
Pipe Sizing for Propane Gas
43
Propane Supply Pressure Requirements
43
Check Inlet Gas Supply
44
Gas Pressure
45
Gas Valve Replacement
45
Field Wiring
46
Low Voltage Connections
46
Enable Switch
46
Louver Relay Output / Louver Proving Switch Input
46
Power Cord Connection
46
Runtime Contacts
46
Alarm Contacts
46
CONDENSATE DISPOSAL Condensate Drain
49
Start-Up
50
Check for Gas Leaks
50
Inspect/Fill Condensate System
50
Final Checks before Starting the Water Heater
51
Shield Control Module
55
Setup Wizard
56
Operating Information
57
How the Water Heater Operates
57
Temperature Control
57
Protection Features
57
Water Heater Temperature Regulation
58
Adjustable Control Parameters
58
Installer Adjustable Parameters
59
General Submenu
59
Service Mode
61
Building Management System (BMS)
61
MAINTENANCE Maintenance and Annual Startup
63
Address Reported Problems
64
Inspect Water Heater Interior
64
Clean Condensate Trap
64
Check All Piping for Leaks
64
Flue Vent System and Air Piping
64
Check Water System
64
Check Expansion Tank
65
Check Water Heater Relief Valve
65
Inspect Ignition & Flame Sense Electrodes
65
Check Ignition Ground Wiring
65
Check All Water Heating Wiring
65
Check Control Settings
65
Perform Startup & Checks
65
Check Burner Flames
66
Check Flame Signal
66
Review with Owner
66
Handling Ceramic Fiber Materials
66
Cleaning Heat Exchanger
66
Oiled Bearing Circulators
67
Magnesium Anode Rod Inspection
67
Troubleshooting
68
Before Troubleshooting
68
Troubleshooting Chart - no Display
69
Checking Temperature Sensors
70
Troubleshooting Chart - Noisy System
71
Troubleshooting Chart - Fault Messages Displayed
72
Combustion Analysis Procedure
78
Gas Valve Adjustment Procedure
79
Diagrams
80
Ladder Diagram
80
Wiring Diagram
81

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