Lochinvar FTxl 725 Gas-Fired Boiler Manuals

Manuals and User Guides for Lochinvar FTxl 725 Gas-Fired Boiler. We have 3 Lochinvar FTxl 725 Gas-Fired Boiler manuals available for free PDF download: Installation & Operation Manual, Service Manual

Lochinvar FTxl 725 Installation & Operation Manual (84 pages)

Fire tube boiler

Brand: Lochinvar | Category: Boiler | Size: 32 MB

Hazard Definitions

2
- Table of Contents
  2
- Boiler Operation
  3
Please Read before Proceeding

3
- When Servicing Boiler
  3
The FTXL - How It Works

4
Ratings

6
1 Determine Boiler Location

7
2 Prepare Boiler

14
- Remove Boiler from Wood Pallet
  14
- Gas Conversions
  14
  - Model 400 - 500
    14
  - Models 600 - 850
    15
3 General Venting

16
- Install Vent and Combustion Air Piping
  17
- Requirements for Installation in Canada
  18
- Sizing
  18
- Min./Max. Combustion Air & Vent Piping Lengths
  18
- Air Inlet Pipe Materials
  18
- Optional Room Air
  19
- Pvc/Cpvc
  20
- Common Venting
  20
- Polypropylene
  22
- Stainless Steel Vent
  23
  - Determine Location
    24
  - Sidewall Direct Venting
    24
4 SIDEWALL DIRECT VENTING Vent/Air Termination - Sidewall

26
5 VERTICAL DIRECT VENTING Vent/Air Termination - Vertical

31
6 Hydronic Piping

37
- System Water Piping Methods
  37
- Low Water Cutoff Device
  37
- Chilled Water System
  37
- Freeze Protection
  37
- General Piping Information
  37
- Relief Valve Installation
  38
- Near Boiler Piping Components
  39
- Circulator Sizing
  39
- Near Boiler Piping Connections
  40
  - Piping Diagrams
    42
  - Gas Connections
    48
7 GAS CONNECTIONS Connecting Gas Supply Piping

48
- Natural Gas
  49
  - Pipe Sizing for Natural Gas
    49
  - Natural Gas Supply Pressure Requirements
    49
- Propane Gas
  49
  - Pipe Sizing for Propane Gas
    49
  - Propane Supply Pressure Requirements
    49
- Check Inlet Gas Supply
  50
- Gas Pressure
  51
- Gas Valve Replacement
  51
8 Field Wiring

52
- Line Voltage Connections
  52
- Low Voltage Connections
  52
  - Outdoor Temperature Sensor
    53
  - Flow Switch
    53
- Wiring of the Cascade
  54
- Condensate Disposal
  56
9 CONDENSATE DISPOSAL Condensate Drain

56
10 Startup

57
- Check for Gas Leaks
  59
- Start the Boiler
  60
- For Your Safety Read before Operating
  61
- Operating Instructions
  61
- To Turn off Gas to Appliance
  61
11 OPERATING INFORMATION General

64
- Temperature Control
  65
- Cascade
  68
- Sequence of Operation
  69
- FTXL Control Module
  71
- Access Modes
  71
- Status Display Screens
  72
12 MAINTENANCE Maintenance and Annual Startup

75
- Address Reported Problems
  76
- Inspect Boiler Area
  76
- Check Expansion Tank
  77
- Check Boiler Relief Valve
  77
- Check Control Settings
  78
- Review with Owner
  79
- Cleaning Boiler Heat Exchanger
  79
13 Diagrams

80
- Wiring Diagram
  80
- Ladder Diagram
  81
- Revision Notes
  84

Lochinvar FTxl 725 Installation & Operation Manual (80 pages)

Brand: Lochinvar | Category: Boiler | Size: 11 MB

Hazard Definitions

2
- Table of Contents
  2
- Boiler Operation
  3
- Boiler Water
  3
Please Read before Proceeding

3
- When Servicing Boiler
  3
The FTXL - How It Works

4
Ratings

6
1 Determine Boiler Location

7
2 Prepare Boiler

14
- Remove Boiler from Wood Pallet
  14
- Gas Conversions
  14
  - Model 400 - 500
    14
  - Models 600 - 850
    15
3 General Venting

16
- Install Vent and Combustion Air Piping
  17
- Requirements for Installation in Canada
  18
- Sizing
  18
- Min./Max. Combustion Air & Vent Piping Lengths
  18
- Air Inlet Pipe Materials
  18
- Optional Room Air
  19
- Pvc/Cpvc
  20
- Common Venting
  20
- Polypropylene
  22
- Stainless Steel Vent
  23
  - Determine Location
    24
4 SIDEWALL DIRECT VENTING Vent/Air Termination - Sidewall

26
5 VERTICAL DIRECT VENTING Vent/Air Termination - Vertical

31
6 Hydronic Piping

37
- System Water Piping Methods
  37
- Low Water Cutoff Device
  37
- Chilled Water System
  37
- Freeze Protection
  37
- General Piping Information
  37
- Relief Valve Installation
  38
- Near Boiler Piping Components
  39
- Circulator Sizing
  39
- Near Boiler Piping Connections
  40
  - Piping Diagrams
    42
  - Gas Connections
    48
7 GAS CONNECTIONS Connecting Gas Supply Piping

48
- Natural Gas
  49
  - Pipe Sizing for Natural Gas
    49
  - Natural Gas Supply Pressure Requirements
    49
- Propane Gas
  49
  - Pipe Sizing for Propane Gas
    49
  - Propane Supply Pressure Requirements
    49
- Check Inlet Gas Supply
  50
- Gas Pressure
  51
- Gas Valve Replacement
  51
8 Field Wiring

52
- Line Voltage Connections
  52
- Low Voltage Connections
  52
  - Outdoor Temperature Sensor
    53
  - Flow Switch
    53
- Wiring of the Cascade
  54
- Condensate Disposal
  56
9 CONDENSATE DISPOSAL Condensate Drain

56
10 Startup

57
- Check for Gas Leaks
  58
- Start the Boiler
  59
- Set Space Heating Operation
  61
11 OPERATING INFORMATION General

63
- Temperature Control
  64
- Cascade
  66
- Sequence of Operation
  67
- FTXL Control Module
  69
- Status Display Screens
  70
12 MAINTENANCE Maintenance and Annual Startup

73
- Address Reported Problems
  74
- Inspect Boiler Area
  74
- Check Expansion Tank
  75
- Check Boiler Relief Valve
  75
- Check Control Settings
  76
- Cleaning Boiler Heat Exchanger
  77
13 Diagrams

78
- Wiring Diagram
  78
- Ladder Diagram
  79
- Revision Notes
  80

Lochinvar FTxl 725 Service Manual (52 pages)

Brand: Lochinvar | Category: Boiler | Size: 13 MB

Contents

2
Please Read before Proceeding

3
1 SERVICE Near Boiler Piping

6
- The FTXL Display
  7
  - Control Inputs
    8
  - Control Outputs
    9
  - General Operation
    10
  - Access Modes
    10
- Sequence of Operation
  10
- Display Panel Menu Access
  13
- Display Panel Parameter Access
  14
- Parameter Table
  16
- Viewable and Changeable Control Parameters
  20
  - Temperature Settings
    21
  - Data Logging
    21
  - Outdoor Reset
    23
  - Circulation Pumps
    29
2 Maintenance

31
- Maintenance and Annual Startup
  31
  - Inspect Boiler Area
    32
  - Check Expansion Tank
    33
  - Check Boiler Relief Valve
    33
  - Check Burner Flame
    34
  - Check Control Settings
    34
  - Check Flame Signal
    35
  - Review with Owner
    35
  - Cleaning Boiler Heat Exchanger
    35
3 Troubleshooting

37
- Before Troubleshooting
  37
- Check Control Module Fuses
  37
- Corrective Action
  38
- Checking Temperature Sensors
  39
- Combustion Analysis Procedure
  47
- Gas Valve Adjustment Procedure
  49
- Revision Notes
  52

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Lochinvar FTxl 725 Gas-Fired Boiler Manuals

Lochinvar FTxl 725 Installation & Operation Manual (84 pages)

Table of Contents

Hazard Definitions

Please Read before Proceeding

The FTXL - How It Works

Ratings

1 Determine Boiler Location

2 Prepare Boiler

3 General Venting

4 SIDEWALL DIRECT VENTING Vent/Air Termination - Sidewall

5 VERTICAL DIRECT VENTING Vent/Air Termination - Vertical

6 Hydronic Piping

7 GAS CONNECTIONS Connecting Gas Supply Piping

8 Field Wiring

9 CONDENSATE DISPOSAL Condensate Drain

10 Startup

11 OPERATING INFORMATION General

12 MAINTENANCE Maintenance and Annual Startup

13 Diagrams

Lochinvar FTxl 725 Installation & Operation Manual (80 pages)

Table of Contents

Hazard Definitions

Please Read before Proceeding

The FTXL - How It Works

Ratings

1 Determine Boiler Location

2 Prepare Boiler

3 General Venting

4 SIDEWALL DIRECT VENTING Vent/Air Termination - Sidewall

5 VERTICAL DIRECT VENTING Vent/Air Termination - Vertical

6 Hydronic Piping

7 GAS CONNECTIONS Connecting Gas Supply Piping

8 Field Wiring

9 CONDENSATE DISPOSAL Condensate Drain

10 Startup

11 OPERATING INFORMATION General

12 MAINTENANCE Maintenance and Annual Startup

13 Diagrams

Lochinvar FTxl 725 Service Manual (52 pages)

Table of Contents

Contents

Please Read before Proceeding

1 SERVICE Near Boiler Piping

2 Maintenance

3 Troubleshooting

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Lochinvar Categories