Table Of Contents; Hazard Definitions - Lochinvar Knight 151 Installation & Operation Manual

HAZARD DEFINITIONS .................................................... 2
PLEASE READ BEFORE PROCEEDING ........................ 3
THE OUTDOOR KNIGHT BOILER -- HOW IT WORKS 4-6
RATINGS ........................................................................... 7
1. DETERMINE BOILER LOCATION
Provide Clearances ............................................................ 9
Corrosive Contaminants and Sources ............................... 9
2. PREPARE BOILER
Remove Boiler from Wood Pallet ..................................... 10
Gas Conversions ......................................................... 10-11
Leveling the Boiler ...................................................... 11
3. HYDRONIC PIPING
System Water Piping Methods ......................................... 12
Low Water Cutoff Device ................................................. 12
Chilled Water System ....................................................... 12
Freeze Protection ............................................................. 12
General Piping Information .............................................. 12
Relief Valve / T & P Installation ....................................... 13
Near Boiler Piping Components .................................. 13-14
Near Boiler Piping Connections ....................................... 14
Circulator Sizing ............................................................... 14
Variable Speed Pump Option .......................................... 16
4. GAS CONNECTIONS
Connecting Gas Supply Piping ................................... 24-25
Natural Gas ...................................................................... 25
Pipe Sizing for Natural Gas ........................................ 25
Natural Gas Supply Pressure Requirements ............. 25
Propane Gas .................................................................... 25
Pipe Sizing for Propane Gas ...................................... 25
Propane Supply Pressure Requirements ................... 25
Check Inlet Gas Supply ................................................... 26
Gas Pressure ................................................................... 27
Gas Valve Replacement .................................................. 27

Hazard definitions

The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or
to important information concerning the life of the product.
DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious
DANGER
injury.
WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious
WARNING
injury.
CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate
CAUTION
injury.
CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not
CAUTION
avoided, may result in property damage.
NOTICE indicates special instructions on installation, operation, or maintenance that are important but not
NOTICE
related to personal injury or property damage.
2
Contents
5. FIELD WIRING
Line Voltage Connections ................................................ 28
Low Voltage Connections ................................................ 28
Wiring of the Cascade ...................................................... 30
6. CONDENSATE DISPOSAL
Condensate Drain ............................................................ 32
7. STARTUP ............................................................... 33-38
8. OPERATING INFORMATION
General ............................................................................. 39
Cascade ........................................................................... 42
Sequence of Operation ............................................... 43-44
Outdoor Knight Boiler Control Module ............................. 45
Status Display Screens ............................................... 46-48
9. MAINTENANCE
Maintenance and Annual Startup ................................ 49-53
10. DIAGRAMS
Ladder Diagram ............................................................... 54
Wiring Diagram................................................................. 55
Revision Notes .................................................. Back Cover