Lochinvar 51-211 operation manual Hazard definitions, Danger, Caution Caution Notice, Contents

Contents

HAZARD DEFINITIONS	2	6. HYDRONIC PIPING
PLEASE READ BEFORE PROCEEDING	3	System Water Piping Methods	35
THE KNIGHT WALL MOUNT BOILER-- HOW IT WORKS	.. 4-5	Low Water Cutoff Device	35
RATINGS	6	Chilled Water System	35
1. DETERMINE BOILER LOCATION		Freeze Protection	35
Provide Clearances	7	General Piping Information	35
Provide Air Openings to Room	9	Near Boiler Piping Components	36
Wall Mounting Location	9	Near Boiler Piping Connections	37
Residential Garage Installation	9	Circulator Sizing	37
Vent and Air Piping	9	Variable Speed Pump Option	39
Prevent Combustion Air Contamination	9	7. GAS CONNECTIONS
Corrosive Contaminants and Sources	10	Connecting Gas Supply Piping	48
Using an Existing Vent System to Install a New Boiler	... 10	Natural Gas	49
Removing a Boiler from Existing Common Vent	11	Pipe Sizing for Natural Gas	49
2. PREPARE BOILER		Natural Gas Supply Pressure Requirements	............. 49
Remove Boiler from Wood Pallet	12	Propane Gas	49
Gas Conversions	12	Pipe Sizing for Propane Gas	49
Mounting the Boiler	13	Propane Supply Pressure Requirements	49
3. GENERAL VENTING		Check Inlet Gas Supply	50
Direct Venting Options	14	Gas Pressure	51
Install Vent and Combustion Air Piping	15	Gas Valve Replacement	51
Requirements for Installation in Canada	16	8. FIELD WIRING
Sizing	16	Line Voltage Connections	52
Min./Max. Combustion Air & Vent Piping Lengths	16	Low Voltage Connections	52
Materials	17	Wiring of the Cascade	54
Optional Room Air	18	9. CONDENSATE DISPOSAL
PVC/CPVC	19	Condensate Drain	56
Polypropylene	20	10. STARTUP	57-62
Stainless Steel Vent	21	11. OPERATING INFORMATION
4. SIDEWALL DIRECT VENTING		General	63
Vent/Air Termination - Sidewall	22-25	Cascade	66
Determine Location	22-23	Sequence of Operation	67-68
Prepare Wall Penetrations	24	Knight Wall Mount Boiler Control Module	69
Multiple Vent/Air Terminations	25	Status Display Screens	70-72
Sidewall Termination - Optional Concentric Vent	26-28	12. MAINTENANCE
5. VERTICAL DIRECT VENTING		Maintenance and Annual Startup	73-77
Vent/Air Termination - Vertical	29-30	13. DIAGRAMS
Determine Location	29	Ladder Diagram	78
Prepare Roof Penetrations	30	Wiring Diagram	79
Multiple Vent/Air Terminations	30	Revision Notes	Back Cover
Vertical Termination - Optional Concentric Vent ...	31-32
Alternate Vertical Concentric Venting	33-34

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

￿WARNING

￿CAUTION CAUTION NOTICE

DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage.

NOTICE indicates special instructions on installation, operation, or maintenance that are important but not related to personal injury or property damage.

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