Lochinvar Shield SNA400-125 Manuals

Manuals and User Guides for Lochinvar Shield SNA400-125. We have 2 Lochinvar Shield SNA400-125 manuals available for free PDF download: Installation & Service Manual, Installation And Service Manual

Lochinvar Shield SNA400-125 Installation & Service Manual (76 pages)

Commercial

Brand: Lochinvar | Category: Water Heater | Size: 9.85 MB

Table of Contents
2
Please Read before Proceeding

3
- Hazard Definitions
  3
The Shield - How It Works

4
- The Shield -- How It Works
  6
Ratings

7
1 Determine Water Heater Location

8
2 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
3 Sidewall Direct Venting

23
- Prepare Wall Penetrations
  25
- Sidewall Direct Venting
  29
4 Vertical Direct Venting

30
5 System Piping

34
- General Piping
  34
  - Scalding
    34
  - Water Chemistry
    35
- Piping Components
  35
  - Piping Diagrams
    36
6 GAS CONNECTIONS Connecting Gas Supply Piping

39
- Natural Gas
  40
  - Pipe Sizing for Natural Gas
    40
  - Natural Gas Supply Pressure Requirements
    40
- Propane Gas
  40
  - Pipe Sizing for Propane Gas
    40
  - Propane Supply Pressure Requirements
    40
- Check Inlet Gas Supply
  41
- Gas Pressure
  42
- Gas Valve Replacement
  42
7 Field Wiring

43
- Low Voltage Connections
  43
- Power Cord Connection
  43
- Runtime Contacts
  43
- Alarm Contacts
  43
8 CONDENSATE DISPOSAL Condensate Drain

46
9 Start-Up

47
10 Operating Information

51
- How the Water Heater Operates
  51
- Temperature Control
  51
- Protection Features
  51
- Water Heater Temperature Regulation
  52
- Adjustable Control Parameters
  52
- Saving Parameters
  52
- Sequence of Operation
  53
- The Shield Control Module
  54
- Status Display Screens
  55
- Status Display Screens
  56
11 MAINTENANCE Maintenance and Annual Startup

57
- Address Report Problems
  58
- Inspect Water Heater Interior
  58
- Clean Condensate Trap
  58
- Check All Piping for Leaks
  58
- Flue Vent System and Air Piping
  58
- Check Water System
  58
- Check Expansion Tank
  59
- Check Water Heater Relief Valve
  59
- Inspect Ignition & Flame Sense Electrodes
  59
- Check Ignition Ground Wiring
  59
- Check All Water Heating Wiring
  59
- Check Control Settings
  59
- Perform Startup & Checks
  59
- Check Burner Flames
  60
- Check Flame Signal
  60
- Review with Owner
  60
- Handling Ceramic Fiber Materials
  60
- Cleaning Heat Exchanger
  60
- Oiled Bearing Circulators
  61
- Magnesium Anode Rod Inspection
  61
- Check Delta T
  61
12 Troubleshooting

62
13 Diagrams

74
- Ladder Diagram
  74
- Wiring Diagram
  75

Lochinvar Shield SNA400-125 Installation And Service Manual (72 pages)

Lochinvar Commercial Water Heater Installation & Service Manual

Brand: Lochinvar | Category: Water Heater | Size: 9.03 MB

Table of Contents
2
Please Read before Proceeding

3
- Hazard Definitions
  3
The Shield - How It Works

4
Ratings

7
1 Determine Water Heater Location

8
2 GENERAL VENTING Direct Venting Options

14
3 Sidewall Direct Venting

18
- Sidewall Direct Venting
  24
4 Vertical Direct Venting

25
5 Conventional and Sidewall Venting

29
6 System Piping

30
- General Piping
  30
  - Scalding
    30
  - Water Chemistry
    31
- Piping Components
  31
  - Piping Diagrams
    32
7 GAS CONNECTIONS Connecting Gas Supply Piping

35
- Natural Gas
  36
  - Pipe Sizing for Natural Gas
    36
  - Natural Gas Supply Pressure Requirements
    36
- Propane Gas
  36
  - Pipe Sizing for Propane Gas
    36
  - Propane Supply Pressure Requirements
    36
- Check Inlet Gas Supply
  37
- Gas Pressure
  38
- Gas Valve Replacement
  38
8 Field Wiring

39
- Low Voltage Connections
  39
- Power Cord Connection
  39
- Runtime Contacts
  39
- Alarm Contacts
  39
9 CONDENSATE DISPOSAL Condensate Drain

42
10 Start-Up

43
11 Operating Information

47
- How the Water Heater Operates
  47
- Temperature Control
  47
- Protection Features
  47
- Water Heater Temperature Regulation
  48
- Adjustable Control Parameters
  48
- Saving Parameters
  48
- Sequence of Operation
  49
- The Shield Control Module
  50
- Status Display Screens
  51
12 MAINTENANCE Maintenance and Annual Startup

53
- Address Report Problems
  54
- Inspect Water Heater Interior
  54
- Clean Condensate Trap
  54
- Check All Piping for Leaks
  54
- Flue Vent System and Air Piping
  55
- Check Water System
  55
- Check Expansion Tank
  55
- Check Water Heater Relief Valve
  55
- Inspect Ignition & Flame Sense Electrodes
  56
- Check Ignition Ground Wiring
  56
- Check All Water Heating Wiring
  56
- Check Control Settings
  56
- Perform Startup & Checks
  56
- Check Burner Flames
  56
- Check Flame Signal
  56
- Review with Owner
  56
- Handling Ceramic Fiber Materials
  57
- Cleaning Water Heater Heat Exchanger
  57
- Oiled Bearing Circulators
  57
13 Troubleshooting

58
14 Diagrams

70
- Ladder Diagram
  70
- Wiring Diagram
  71

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More Lochinvar Manuals

Lochinvar Shield SNA400-125 Manuals

Lochinvar Shield SNA400-125 Installation & Service Manual (76 pages)

Table of Contents

Please Read before Proceeding

The Shield - How It Works

Ratings

1 Determine Water Heater Location

2 General Venting

3 Sidewall Direct Venting

4 Vertical Direct Venting

5 System Piping

6 GAS CONNECTIONS Connecting Gas Supply Piping

7 Field Wiring

8 CONDENSATE DISPOSAL Condensate Drain

9 Start-Up

10 Operating Information

11 MAINTENANCE Maintenance and Annual Startup

12 Troubleshooting

13 Diagrams

Lochinvar Shield SNA400-125 Installation And Service Manual (72 pages)

Table of Contents

Please Read before Proceeding

The Shield - How It Works

Ratings

1 Determine Water Heater Location

2 GENERAL VENTING Direct Venting Options

3 Sidewall Direct Venting

4 Vertical Direct Venting

5 Conventional and Sidewall Venting

6 System Piping

7 GAS CONNECTIONS Connecting Gas Supply Piping

8 Field Wiring

9 CONDENSATE DISPOSAL Condensate Drain

10 Start-Up

11 Operating Information

12 MAINTENANCE Maintenance and Annual Startup

13 Troubleshooting

14 Diagrams

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