Lochinvar Crest FBL1251 Condensing Boiler Manuals

Manuals and User Guides for Lochinvar Crest FBL1251 Condensing Boiler. We have 3 Lochinvar Crest FBL1251 Condensing Boiler manuals available for free PDF download: Installation & Operation Manual, Supplemental Manual

Lochinvar Crest FBL1251 Installation & Operation Manual (76 pages)

Brand: Lochinvar | Category: Boiler | Size: 30 MB

Table of Contents
2
Hazard Definitions
2
Please Read before Proceeding
3
The Crest - How It Works
4
Ratings
6
Other Specifications
6
Determine Boiler Location
7
Clearances
7
Provide Air Openings to Room
8
Flooring and Foundation
8
Vent and Air Piping
8
Prevent Combustion Air Contamination
8
Using an Existing Vent System to Install a New Boiler
9
Corrosive Contaminants and Sources
9
Remove Boiler from Wood Pallet
10
Combustion Air Filter
13
General Venting
14
Direct Venting
14
Optional Room Air
14
Install Vent and Combustion Air Piping
15
Air Inlet Pipe Materials
15
Vent and Air Piping
16
Air Intake/Vent Connections
16
Removing from Existing Vent
20
Vent and Air Piping
20
Common Venting
21
Pvc/Cpvc
21
Polypropylene
23
VERTICAL DIRECT VENTING Vent/Air Termination - Vertical
24
Determine Location
24
Prepare Roof Penetrations
24
Termination and Fittings
24
Multiple Vent/Air Terminations
25
SIDEWALL DIRECT VENTING Vent/Air Termination - Sidewall
26
Determine Location
26
Prepare Wall Penetrations
28
Termination and Fittings
28
Multiple Vent/Air Terminations
28
Room Air
29
Hydronic Piping
30
System Water Piping Methods
30
Low Water Cutoff Device
30
Chilled Water System
30
Freeze Protection
30
General Piping Information
30
Circulator Sizing
31
Near Boiler Piping Components
33
Gas Connections
38
Connecting Gas Supply Piping
38
Natural Gas
39
Pipe Sizing for Natural Gas
39
Natural Gas Supply Pressure Requirements
39
Propane Gas
39
Pipe Sizing for Propane Gas
39
Propane Supply Pressure Requirements
39
Check Inlet Gas Supply
40
Gas Valve Replacement
41
Field Wiring
42
Line Voltage Connections
42
Low Voltage Connections
43
Boiler Management System
44
Runtime Contacts
44
Alarm Contacts
44
Wiring of the Cascade
44
CONDENSATE DISPOSAL Condensate Drain
46
Startup
47
Pre-Commissioning Cleaning
47
Additional Considerations
48
Freeze Protection Fluids
48
Oxygen Prevention
48
Check for Gas Leaks
49
Check Thermostat Circuit(S)
49
Inspect Condensate System
49
For Your Safety Read before Operating
51
What to Do if You Smell Gas
51
To Turn off Gas to Appliance
51
Set Space Heating Operation
53
Operating Information
56
General
56
Temperature Control
56
Protection Features
57
Cascade
59
Efficiency Optimization
59
Sequence of Operation
60
Owner Maintenance
62
Maintenance & Annual Startup
62
Inspect Boiler Interior
63
Section 9 - Start-Up
64
Check Burner Flame
65
Check Flame Signal
65
Review with Owner
66
Cleaning Boiler Heat Exchanger
66
Handling Ceramic Fiber Materials
66
Removal of Combustion Chamber Lining
66
Diagrams
67
Ladder Diagrams
76
Revision Notes
76

Lochinvar Crest FBL1251 Installation & Operation Manual (68 pages)

Brand: Lochinvar | Category: Boiler | Size: 29 MB

Hazard Definitions

2
- Table of Contents
  2
Please Read before Proceeding

3
The Crest - How It Works

4
Ratings

6
1 Determine Boiler Location

7
2 General Venting

14
3 VERTICAL DIRECT VENTING Vent/Air Termination - Vertical

22
- Determine Location
  22
- Prepare Roof Penetrations
  22
- Termination and Fittings
  22
- Multiple Vent/Air Terminations
  23
- Sidewall Direct Venting
  24
4 SIDEWALL DIRECT VENTING Vent/Air Termination - Sidewall

24
- Determine Location
  24
- Prepare Wall Penetrations
  26
- Termination and Fittings
  26
- Multiple Vent/Air Terminations
  26
- Room Air
  27
5 Hydronic Piping

28
- System Water Piping Methods
  28
- Low Water Cutoff Device
  28
- Chilled Water System
  28
- Freeze Protection
  28
- General Piping Information
  28
- Circulator Sizing
  29
- Near Boiler Piping Components
  30
6 Gas Connections

35
- 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 Valve Replacement
  38
7 Field Wiring

39
- Line Voltage Connections
  39
- Low Voltage Connections
  40
- Wiring of the Cascade
  41
- Condensate Disposal
  43
8 CONDENSATE DISPOSAL Condensate Drain

43
9 Startup

44
- Check for Gas Leaks
  46
- Start the Boiler
  47
- For Your Safety Read before Operating
  48
- Operating Instructions
  48
- To Turn off Gas to Appliance
  48
10 OPERATING INFORMATION General

53
- Temperature Control
  53
- Cascade
  56
- Sequence of Operation
  57
- Home Screen
  58
11 Maintenance

59
- Maintenance and Annual Startup
  59
  - Address Reported Problems
    60
  - Inspect Boiler Area
    60
  - Check Burner Flame
    62
  - Check Flame Signal
    62
  - Handling Ceramic Fiber Materials
    63
  - Cleaning Boiler Heat Exchanger
    63
12 Diagrams

64
- Ladder Diagram
  64
- Wiring Diagram
  65
- Revision Notes
  68

Lochinvar Crest FBL1251 Supplemental Manual (20 pages)

CONDENSING BOILER

Brand: Lochinvar | Category: Boiler | Size: 5 MB

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More Lochinvar Manuals

Lochinvar Crest FBL1251 Condensing Boiler Manuals

Lochinvar Crest FBL1251 Installation & Operation Manual (76 pages)

Table of Contents

Lochinvar Crest FBL1251 Installation & Operation Manual (68 pages)

Table of Contents

Hazard Definitions

Please Read before Proceeding

The Crest - How It Works

Ratings

1 Determine Boiler Location

2 General Venting

3 VERTICAL DIRECT VENTING Vent/Air Termination - Vertical

4 SIDEWALL DIRECT VENTING Vent/Air Termination - Sidewall

5 Hydronic Piping

6 Gas Connections

7 Field Wiring

8 CONDENSATE DISPOSAL Condensate Drain

9 Startup

10 OPERATING INFORMATION General

11 Maintenance

12 Diagrams

Lochinvar Crest FBL1251 Supplemental Manual (20 pages)

Table of Contents

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