Lochinvar WH 55-399 Manuals

Manuals and User Guides for Lochinvar WH 55-399. We have 1 Lochinvar WH 55-399 manual available for free PDF download: Installation & Operation Manual

Lochinvar WH 55-399 Installation & Operation Manual

Lochinvar WH 55-399 Installation & Operation Manual (80 pages)

Wall Mount Boiler

Brand: Lochinvar | Category: Boiler | Size: 8.61 MB

Table of Contents

Hazard Definitions

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

3
- When Servicing Boiler
  3
The Knight Wall Mount Boiler - How It Works

4
Ratings

6
1 Determine Boiler Location

7
2 Prepare Boiler

12
- Remove Boiler from Wood Pallet
  12
- Gas Conversions
  12
- Mounting the Boiler
  13
3 General Venting

14
- Install Vent and Combustion Air Piping
  15
- Requirements for Installation in Canada
  16
- Sizing
  16
- Materials
  17
- Air Inlet Pipe Materials
  17
- Optional Room Air
  18
- Pvc/Cpvc
  19
- Polypropylene
  20
- Stainless Steel Vent
  21
  - Determine Location
    22
4 SIDEWALL DIRECT VENTING Vent/Air Termination - Sidewall

23
5 VERTICAL DIRECT VENTING Vent/Air Termination - Vertical

29
6 Hydronic Piping

33
- System Water Piping Methods
  33
- Low Water Cutoff Device
  33
- Chilled Water System
  33
- Freeze Protection
  33
- General Piping Information
  33
- Near Boiler Piping Components
  34
- Near Boiler Piping Connections
  35
- Circulator Sizing
  35
- Variable Speed Pump Option
  37
- 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
  62
11 Operating Information

64
- General
  64
- Temperature Control
  65
- Cascade
  67
- Sequence of Operation
  68
- Access Modes
  69
- Knight Wall Mount Boiler Control Module
  70
- Status Display Screens
  71
12 MAINTENANCE Maintenance and Annual Startup

74
- Address Reported Problems
  75
- Inspect Boiler Area
  75
- Check Expansion Tank
  76
- Check Boiler Relief Valve
  76
- Review with Owner
  77
- Check Burner Flame
  77
- Cleaning Boiler Heat Exchanger
  77
- Check Flame Signal
  77
- Oiled Bearing Circulators
  77
13 Diagrams

78
- Ladder Diagram
  78
- Wiring Diagram
  79

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