UTICA BOILERS JE Installation Manual download pdf (Page 7)

Combustion Air

Provide combustion and ventilation air in accordance

with the section “Air for Combustion and Ventilation”, of

the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or

applicable provisions of the local building codes.

Chimney And Vent Pipe Connection

This is a very important part of the heating system. It must

be clean, the right size, properly constructed and in Good

Condition. No boiler can function properly with a bad

chimney. See Pages 8-12 for specic venting instructions.

Flue pipe should be same size as draft hood outlet from

boiler to ue collector. See Chart 1 for Typical Chimney Size.

Maintain a minimum upward slope of 1/4 inch per linear foot

from boiler to the chimney. Fasten joints together with sheet

metal screws to prevent sagging.

Boiler Location

Locate boiler on level, non-combustible foundation as near

to chimney or ue as possible. Allow 24 inches at front and

sides of boiler for servicing and cleaning. When installed in

utility room, the door should be wide enough to allow the

largest boiler parts to enter, or permit replacement of any

other appliance in the same room.

Installing contractor must provide ventilated

foundation for boiler when installing:

• Over a room

• Over electrical wiring or cables of any kind

• If concrete oor is not cured or water is

channeled under concrete oor

Minimum Vent Pipe Clearance

If the vent pipe must go through a crawl space, double

wall vent pipe should be used. Where vent passes through

a combustible wall or partition, use a ventilated metal

thimble. The thimble should be 4 inches larger in diameter

than vent pipe. If boiler is installed with single wall

galvanized type vent pipe, it must have 6 inches clearance

between its surface and any combustible material. If

UL listed type B (insulated) vent pipe is used, clearance

between it and combustible material to be as listed by pipe

manufacturer.

CHART 2

FOR INSTALLATION ON NON-COMBUSTIBLE

FLOORS ONLY,

MINIMUM CLEARANCES TO

COMBUSTIBLE CONSTRUCTION

Inputs of

400 MBH or

less

Inputs over

400 MBH

Top 52” 52”

Front 18” 18”

Flue Collector 6 “ 6”

Rear 18” 24”

Sides 18” 24”

Steam/Water

Piping

1” 1”

Greater clearances (24”) for access should supersede

re protection clearances.

BEFORE INSTALLING

WARNING

Fire hazard. Do not install boiler on combustible

ooring such as carpeting or wood ooring. Failure

to follow these instructions could result in death or

serious injury.

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UTICA BOILERS JE Installation Manual Page 7

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