Lochinvar 402 - 2072 operation manual Contents, Hazard definitions, Danger, Caution Caution Notice

Contents

HAZARD DEFINITIONS	2
PLEASE READ BEFORE PROCEEDING	3
SAFETY INFORMATION	4
THE COPPER-FIN II -- HOW IT WORKS	5-7
RATINGS	8
1. DETERMINE UNIT LOCATION
Location of Unit	9
Recommended Service Clearances	9
Non-Combustible / Combustible Flooring	10
Combustion Air Options	10-13
2. VENTING
Before You Begin	13
Vent System Options	14
General Venting Information	15
Conventional Negative Draft Venting	16-18
Vertical DirectAire Venting	19-21
Sidewall Venting	22-24
Horizontal DirectAire Venting	25
Direct Venting	26-29
Outdoor Installation	30
3. GAS CONNECTIONS
Connecting to Gas Supply	31
Gas Pressure Test	31
Checking Manifold Gas Pressure	31
Combination Gas Valves	32
Checking Gas Supply Pressure	33
4. WATER CONNECTIONS
Inlet & Outlet Connections	34
Relief Valve	35
Heating Boiler Installations	35-36
Low Temperature Return Water Systems	36
Low Temperature Bypass Requirements	36
Three Way Valves in System	37
Radiant Floor and Snow Melt Heating Systems	37
Typical Heating Boiler Installations	38
Installation with a Chilled Water System	38
Primary/Secondary Piping of a Single Boiler	39
Primary/Secondary Piping of Multiple Boilers	40
Boiler w/Low Temperature Bypass Piping	41
Primary/Secondary Piping with Buffer Tank	42

5. ELECTRICAL CONNECTIONS
Boiler Operating Control Module		43
Line Voltage Connections		44
Low Voltage Connections		44
Wiring of the Cascade		45
Low Voltage Field Wiring Connections		46
6. STARTUP
Check/Control Water Chemistry		47
Freeze Protection (when used)		47
Fill and Test Water System		47
Purge Air from Water System		47
Check for Gas Leaks		47
Check Thermostat Circuit(s)		48
Check Vent and Air Piping		48
Placing the Boiler in Operation		48
Start the Boiler		48
If Boiler Does Not Start Correctly		48
Set Space heating Operation (boiler only)		48
Operating Instructions		49
Set DHW Operation		50
7. OPERATING INFORMATION
General		51-53
Cascade		53-54
Sequence of Operation		55-56
Copper-fin II Control Module		56
Access Modes		57
Saving Parameters		57
Status Display Screens		58-61
8. DOMESTIC WATER HEATERS
Initial Setup of Maximum Water Flow		62
Water Chemistry		63
Typical Water Heater Piping w/Storage Tank(s)		64-65
Multiple Water Heater Piping w/Storage Tank(s)	........	66-67
Pump Operation		68
Minimum Water Temperatures (domestic hot water)		69
9. MAINTENANCE		71-75
10. CONNECTION DIAGRAM		76-77
11. LADDER DIAGRAM		78-79
Revision Notes	Back Cover

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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