Amana GUC Series Manual de instrucciones descargar pdf (Pagina 9)

tight where it penetrates the roof with a proper flashing

such as used with a plastic plumbing vent. The vent may

be run through an existing unused chimney: however, the

pipe must be used all the way through to at least 12 inches

above the top of the existing chimney. The space between

the vent pipe and the chimney must be closed with a

weather tight, corrosion resistant flashing.

Never vent with

an existing appliance or vent used by a solid fuel appliance.

WARNING

Upon completion of the furnace installation,

carefully inspect the entire flue system

both inside and outside the furnace to

assure it is properly sealed. Leaks in the

flue system can result in serious personal

injury or death due to exposure to flue

products, including carbon monoxide.

CANADIAN VENTING REQUIREMENTS

In Canada, venting shall conform to the requirements of

the current CANI-B149 Installation Codes.

Use only C.S.A. Listed 2 inch or 3 inch nominal diameter

PVC or ABS pipe and fittings throughout.

The Minimum vent consists of 3 feet of straight pipe with

2 elbows (9 equivalent feet).

A single wall vent shall not be run vertically through the

roof. The vent may be run through an existing unused

chimney as described in the previous venting section

provided the space between the vent pipe and the

chimney is insulated and closed with a weather tight,

corrosion resistant flashing.

Cut all vent pipe at right angles. Remove inside and

outside burr at each cut. Use cleaner to clean pipe and

fitting socket. Use CSA listed cement to fasten pipe and

fittings.

Follow manufacturers cleaning and cementing instruc-

tions carefully to avoid leakage.

Note: All piping exposed outdoors or in unheated areas

must be insulated with 1/2 inch thick closed cell foam

insulation such as “armaflex” or “insultube”.

The vent terminal shall

not

be located:

1. Less than 12 inches above the finished grade line.

2. Less than 36 inches from any building opening or any

gas service regulator. (For gas service regulators in

the Province of Ontario, 72 inches.)

3. Less than 72 inches from the combustion air inlet of

another appliance.

4. Directly above a gas utility meter or service regulator.

5. Over a walkway unless 84 inches above grade.

VI. Combustion Air and Vent Piping

(GUD - Two Pipe)

GENERAL INFORMATION AND SAFETY

PRECAUTIONS

WARNING

Failure to follow these instructions can

result in bodily injury or death from

asphyxiation. Therefore, carefully read and

follow all instructions given in this section.

CAUTION

Terminate the combustion air intake as far

as is practical from the air conditioning

unit or heat pump, swimming pools,

swimming pool pumping units, and dryer

vents.

All combustion air and exhaust piping must be installed in

accordance with local codes and these instructions.

When the furnace is installed in a confined space where

the minimum clearances to combustible surfaces (see

Specification Sheet) are applied, such as in a closet or a

utility room, two ventilation openings are required with a

total minimum free area of 0.25 square inches per 1,000

BTUH of the furnace input rating. One opening must be

within 12 inches of the top and one must be within 12

inches of the bottom of the confined space. In typical

construction, the clearance between the door and door

frame will usually be adequate to satisfy this ventilation

requirement.

When the GUD furnace is installed in the same space with

other gas appliances, such as a water heater, make sure

there is an adequate supply of combustion and ventilation

air for the other appliances. See the latest edition of the

National Fuel Gas Code NFPA 54/ANSI Z223.1. for deter-

mining the combustion air requirements for the appli-

ances.

The GUD furnaces are supplied with a 3 inch air intake

terminal screen. This screen is shipped in the same plastic

sack that held this manual. For both vertical and horizontal

installations, insert the screen into the air intake terminal

until it is firmly secured at the hub of the terminal elbow.

If the vent (flue) pipe is exposed to extremely cold tempera-

tures and/or long runs through unheated spaces or out-

doors, insulation may be required on the outside of the vent

pipe to prevent condensate from freezing. Canadian in-

stallers must take note of the “Canadian Venting Require-

ments” in this section. Where required, use 1/2 inch thick

closed cell foam insulation such as Armaflex or Insultube.

Note: Inspect the flue for leaks before installing any

insulation.

If the combustion air pipe is to be installed above a

suspended ceiling or other area where dripping of conden-

sation will be objectionable, insulation of the combustion

air pipe may be required. Where required, use 1/2 inch

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