Legend LB 1000 Installation Operation & Maintenance - Installation Instructions

9

If the boiler is installed above radiation level, a Low Water Cutoff

Device must be installed in the boiler outlet at the time of

installation.

CHEMICAL VAPOR CORROSION

Water boiler corrosion and component failure can be caused by

the heating and breakdown of airborne chemical vapors.  Spray

can propellants, cleaning solvents, refrigerator and air

conditioning refrigerants, swimming pool chemicals, calcium and

sodium chloride (water softener salt), waxes, and process

chemicals are typical compounds which are potentially corrosive.

These materials are corrosive at very low concentration levels

with little or no odor to reveal their presence.

Products of this sort should not be stored near the boiler.  Also,

air which is brought in contact with the water boiler should not

contain any of these chemicals.  If necessary, uncontaminated

air should be obtained from remote or outside sources.  Failure

to observe this requirement will void the warranty.

INSTALLATION CLEARANCES

This boiler is approved for installation on combustible flooring in

an alcove with minimum clearances to combustibles of:

4" (102 mm) Rear; 0" (0 mm) Top and Sides; 6" (152 mm) Vent.

Two inch (51 mm) clearance is allowable from combustible

construction for hot water pipes.

Sufficient area should be provided at the front and rear of the unit

for proper servicing.  Service clearances of 24" (610 mm) in front,

rear, top and left side are recommended.  In a utility room

installation, the door opening shall be wide enough to allow the

boiler to enter or to permit the replacement of another appliance

such as a water heater.

LEVELING

Each unit should be checked after installation to be certain that it

is level.

If the unit is not level, obtain and insert shims under the nylon

protective feet at the frame base to correct this condition.

AIR REQUIREMENTS

WARNING

FOR SAFE OPERATION, AN AMPLE SUPPLY OF AIR MUST BE

PROVIDED FOR PROPER COMBUSTION AND VENTILATION IN

ACCORDANCE WITH SECTION 8.3, AIR FOR COMBUSTION AND

VENTILATION, OF THE NATIONAL FUEL GAS CODE, ANSI Z223.1

OR SECTION 7.4 OF CSA-B149.1-00 OR APPLICABLE

PROVISIONS OF THE LOCAL BUILDING CODES.  AN INSUFFICIENT

SUPPLY OF AIR WILL RESULT IN A YELLOW, LUMINOUS BURNER

FLAME, CAUSING CARBONING OR SOOTING OF THE FINNED HEAT

EXCHANGER AND CREATING A RISK OF ASPHYXIATION.  DO NOT

OBSTRUCT THE FLOW OF COMBUSTION AND VENTILATION AIR.

UNCONFINED SPACE

In buildings of conventional frame, brick or stone construction,

unconfined spaces may provide adequate air for combustion.

If the unconfined space is within a building of tight construction

(buildings using the following construction: weather stripping,

heavy insulation, caulking, vapor barrier, etc.), air for combustion,

ventilation and draft hood dilution must be obtained from outdoors

The T & P relief valve must comply with the applicable construction

provisions of the Standard for Relief Valves and Automatic Gas

Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22-1999

or CAN/CSA-B149.1-00, or most recent edition.  The T & P relief

valve must be of the automatic reset type and not embody a single-

use type fusible plug, cartridge or linkage.

The T & P relief valve should have a temperature rating of 210°F

(99°C), a pressure rating NOT exceeding the lowest rated working

pressure of any system component, and a discharge capacity

exceeding the total input of the water boilers supplying water to

the storage tank.

Locate the T & P relief valve (a) in the top of the tank, or (b) in the

side of the tank on a centerline within the upper 6 inches (152

mm) of the top of the tank.  See figures 13 and 14.  The tapping

shall be threaded in accordance with the latest edition of the

Standard for Pipe Threads, General Purpose (inch), ANSI/ASME

B1.20.1.  The location of, or intended location for, the T & P relief

valve shall be readily accessible for servicing or replacement.

FOR HOT WATER HEATING SYSTEMS, the boilers are shipped

with a 50 psi (345 kPa) pressure relief valve.  This relief valve

must be installed in the water outlet as near to the boiler as

possible.

INSTALLATION INSTRUCTIONS

REQUIRED ABILITY

INSTALLATION OR SERVICE OF THIS BOILER REQUIRES

ABILITY EQUIVALENT TO THAT OF A LICENSED TRADESMAN

IN THE FIELD INVOLVED.  PLUMBING, AIR SUPPLY, VENTING,

GAS SUPPLY AND ELECTRICAL WORK ARE REQUIRED.

LOCATION

When installing the boiler, consideration must be given to proper

location.  The location selected should provide adequate air

supply and be as centralized with the piping system as possible.

THE BOILER MUST NOT BE INSTALLED ON CARPETING.

THE BOILER SHOULD NOT BE LOCATED IN AN AREA WHERE IT

WILL BE SUBJECT TO FREEZING.

LOCATE IT NEAR A FLOOR DRAIN.  THE BOILER SHOULD BE

LOCATED IN AN AREA WHERE LEAKAGE FROM THE BOILER OR

CONNECTIONS WILL NOT RESULT IN DAMAGE TO THE

ADJACENT AREA OR TO LOWER FLOORS OF THE STRUCTURE.

WARNING

THERE IS A RISK IN USING FUEL BURNING APPLIANCES SUCH

AS BOILERS IN ROOMS OR AREAS WHERE GASOLINE, OTHER

FLAMMABLE LIQUIDS OR ENGINE DRIVEN EQUIPMENT OR

VEHICLES ARE STORED, OPERATED OR REPAIRED.

FLAMMABLE VAPORS ARE HEAVY AND TRAVEL ALONG THE

FLOOR AND MAY BE IGNITED BY SPARKS CAUSING FIRE OR

EXPLOSION.  SOME LOCAL CODES PERMIT OPERATION OF GAS

APPLIANCES IF INSTALLED 18 INCHES (457 MM) OR MORE

ABOVE THE FLOOR.  THIS MAY REDUCE THE RISK IF LOCATION

IN SUCH AN AREA CANNOT BE AVOIDED.

WARNING

FLAMMABLE ITEMS, PRESSURIZED CONTAINERS OR ANY

OTHER POTENTIAL FIRE HAZARDOUS ARTICLES MUST NEVER

BE PLACED ON OR ADJACENT TO THE BOILER.  OPEN

CONTAINERS OR FLAMMABLE MATERIAL SHOULD NOT BE

STORED OR USED IN THE SAME ROOM WITH THE BOILER.