Masonry Chimneys - Amana GUI Installation Instructions Manual

V. Masonry Chimneys
WARNING
Possibility of property damage, personal
injury, or death - Damaging condensa-
tion can occur inside masonry chimneys
when a single fan assisted Category I
appliance (80% AFUE furnace) is vented
without adequate dilution air. Do not con-
nect an 80% furnace to a masonry chim-
ney unless the furnace is common vented
with a draft hood equipped appliance, or
the chimney is lined with a metal liner or
Type B metal vent. All installations using
Masonry chimneys must be sized in ac-
cordance with the appropriate Venting
Tables.
If an 80% furnace is common vented with
a draft hood equipped appliance, the
potential for condensation damage may
still exist with extremely cold conditions,
long vent connectors, exterior chimneys,
or any combination of these conditions.
The risk of condensation damage is best
avoided by using the masonry chimney
as a pathway for properly sized metal
liner or Type B metal vent.
Crown
Clay Tile Size Generally
12" x 12" (24" Length)
Throat
Damper
Breech
Clean Out
Figure 8
Typical Multiple Flue Clay Tile Chimney
Wash
Roof Line
Clay Tile Size: 8" x 8" x12"
(Each x 24" Length)
Attic Floor
1/2" to 1" Air Space
Second Floor
First Floor
Water Heater
Vent Connector
F.A.F. Vent
Connector
Natural Draft
Fan Assisted
Water Heater
Forced Air
Furnace
Basement Floor
Checklist Summary
This checklist serves as a summary of the items to be
checked before venting an Air Command 80 furnace into
a masonry chimney. In addition, we recommend that a
qualified serviceman use this checklist to perform a
yearly inspection of the furnace venting system.
This checklist is only a summary. For detailed informa-
tion on each of the procedures mentioned, see the
paragraph referenced with each item.
This inspection is based upon a draft topical report,
"Masonry Chimney Inspection and Relining", issued by
the Gas Research Institute. While not yet finalized, we
believe this report represents the best information on this
subject which is currently available.
Proper Chimney
Termination?
(Check 1)
Yes
Chimney channel
free of solid and
liquid fuel
appliances?
(Check 2)
Yes
Crown in good
condition?
(Check 3)
Yes
Cleanout free of
debris?
(Check 4)
Yes
Liner in good
condition?
(Check 5)
Yes
Dilution air
available?
(Check 6)
Yes
Complete the
installation.
(Check 7)
9
Line, terminate with
No
listed vent cap
(Fix 1)
Change venting
No
arrangements
(Fix 2)
Rebuild crown
(Fix 3)
No
and /or Reline
(Fix 4)
Reline
No
(Fix 4)
Reline
No
(Fix 4)
Reline
No
(Fix 4)