Masonry Chimneys; Masonry Chimney Termination; Electrical Connections - Amana MES80 Manual

14. Restore power to furnace.
NOTE: In a horizontal installation the air conditioning coil
must be adequately supported by proper brackets and
supports. Inadequate coil support can result in furnace
cabinet distortion and air leakage.
Counterflow units are shipped with the induced draft blower
discharging from the top of the furnace. ("Top" as viewed for
a counterflow installation.)
Vent the furnace in accordance with the National Fuel Gas
Code NFPA54/ANSI Z223.1-latest edition.
N
EVER ALLOW THE PRODUCTS OF COMBUSTION
,
MONOXIDE TO ENTER THE RETURN DUCTWORK OR CIRCULATION AIR
.
SUPPLY

Masonry Chimneys

An exterior masonry chimney is defined as a "Masonry" chim-
ney exposed to the outdoors on one or more sides below the
roof line."
Masonry chimneys used to vent Category I central furnac-
es must be either tile-lined or lined with a listed metal liner
listed for venting a Category 1 appliance.. Unlined masonry
chimneys are prohibited and must not be used to vent this
appliance. An exterior masonry chimney that is not tile-lined
must be lined with B vent or a listed insulated flexible metal
vent. Insulation for the flexible vent pipe must be an encap-
sulated fiberglass sleeve recommended by the flexible vent
pipe manufacturer. Insulation will need to be added to the
flexible liner if:
• It is required by the liner manufacturer's Instructions.
• The previous liner was properly sized and installed,
and suffered from condensation damage.
A listed uninsulated flexible metal vent liner may be used in an
exterior tile lined chimney that is sealed and capped.
Poured insulation, vermiculite or other materials shall not be
used.
For sizing of flexible liners, see the tables in the National Fuel
Gas Code NFPA 54/ANSI Z223.1 - latest edition and in the
National Standard of Canada, CAN/CSA B149.1 and CAN/
CSA B149.2 – latest editions and amendments.
If a B vent liner is to be used, it must be supported adequate-
ly. Supports (such as fire stops or thimbles) must be used to
prevent the B vent from coming into direct contact with the tile
liner or chimney walls. Direct contact would result in higher
heat loss, with an increased possibility of poor venting system
performance.
It is not acceptable to vent one appliance inside the B vent
and other appliances outside. The excess space between the
B vent and the chimney walls must be covered at the top of
the chimney by a weatherproof, corrosion resistant flashing.
The B vent shall then be topped with a listed vent cap.
WARNING
,
INCLUDING CARBON
P
OSSIBILITY OF PROPERTY DAMAGE
DAMAGING CONDENSATION CAN OCCUR INSIDE MASONRY CHIMNEYS
-
WHEN A SINGLE FAN ASSISTED
)
FURNACE IS VENTED WITHOUT ADEQUATE DILUTION AIR
80%
CONNECT AN FURNACE TO A MASONRY CHIMNEY UNLESS THE
FURNACE IS COMMON VENTED WITH A DRAFT HOOD EQUIPPED
APPLIANCE OR THE CHIMNEY IS LINED WITH A METAL LINER OR
. A
METAL VENT LL INSTALLATIONS USING MASONRY CHIMNEYS MUST BE
SIZED IN ACCORDANCE WITH THE APPROPRIATE VENTING TABLES
80%
FURNACE IS COMMON VENTED WITH A DRAFT HOOD EQUIPPED
,
APPLIANCE THE POTENTIAL FOR CONDENSATION DAMAGE MAY STILL
EXIST WITH EXTREMELY COLD CONDITIONS
,
EXTERIOR CHIMNEYS OR ANY COMBINATION OF THESE CONDITIONS
T
HE RISK OF CONDENSATION DAMAGE IS BEST AVOIDED BY USING
MASONRY CHIMNEY AS A PATHWAY FOR PROPERLY SIZED METAL LINER
T B .
OR YPE METAL VENT

Masonry Chimney Termination

A masonry chimney used as a vent for gas fired equipment
must extend at least three feet above the highest point where it
passes through the roof. It must extend at least two feet higher
than any portion of a building within a horizontal distance of
10 feet. In addition, the chimney must terminate at least 3 feet
above any forced air inlet located within 10 feet. The chimney
must extend at least five feet above the highest connected
equipment draft hood outlet or flue collar.
If the chimney does not meet these termination requirements,
but all other requirements in the checklist can be met, it may
be possible for a mason to extend the chimney. If this will not
be practical, see Fix 1.

Electrical Connections

HIGH VOLTAGE !
T
O AVOID THE RISK OF ELECTRICAL SHOCK
THE UNIT MUST BE POLARIZED AND GROUNDED
HIGH VOLTAGE !
T
O AVOID PERSONAL INJURY OR DEATH DUE TO
,
ELECTRICAL SHOCK DISCONNECT ELECTRICAL POWER
BEFORE SERVICING OR CHANGING ANY ELECTRICAL
.
WIRING
L
ABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING
. W
CONTROLS IRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS
. V
OPERATION ERIFY PROPER OPERATION AFTER SERVICING
11
WARNING
,
PERSONAL INJURY OR DEATH
C I (80% AFUE
ATEGORY APPLIANCE
. D
O NOT
,
LONG VENT CONNECTORS
WARNING
,
WIRING TO
.
WARNING
CAUTION
.
T B
YPE
. I
F AN
,
.