Instruction manual

12
To rotate the induced draft blower counterclockwise proceed as fol-
lows:
1. Disconnect electrical power from furnace.
WARNING
T
O AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRIC SHOCK,
DISCONNECT ELECTRICAL POWER BEFORE PERFORMING ANY SERVICE OR
MAINTENANCE.
2. Remove the round cutout from the side of the furnace.
NOTE: The assembly, starting from the outside, is induced draft
blower, outer gasket, rotation plate, inner gasket, partition panel
(See Figure 5).
Figure 5 - Blower Assembly
3. Remove and save the four screws which hold the rotation
plate on the partition panel. Note that one of the screws
which hold the induced draft blower on the rotation plate
needs to be removed.
4. Turn the rotation plate 90 degrees counterclockwise. The
inner gasket must turn with the rotation plate.
5. Reinstall the rotation plate on the partition panel, using the
four screws removed in step 3. Tighten screws to provide
an airtight seal.
6. Make sure all wires are at least one inch from flue pipe.
Relocate junction box to right side of cabinet if necessary.
Refer to Section VIII, Electrical Connections for instructions.
WARNING
T
O PREVENT SERIOUS ILLNESS OR DEATH TO BUILDING OCCUPANTS DUE TO
FLUE PRODUCTS LEAKING INTO THE BUILDING, PROPER INSTALLATION OF
GASKETS AND SCREWS IS ESSENTIAL FOR PROVIDING A GAS TIGHT SEAL
BETWEEN THE PARTITION PANEL AND THE INDUCED DRAFT BLOWER.
VII. MAVII. MA
VII. MAVII. MA
VII. MA
SOSO
SOSO
SO
NRNR
NRNR
NR
Y CHIMNEY CHIMNE
Y CHIMNEY CHIMNE
Y CHIMNE
YSYS
YSYS
YS
WARNING
P
OSSIBILITY OF PROPERTY DAMAGE, PERSONAL INJURY OR DEATH
DAMAGING CONDENSATION CAN OCCUR INSIDE MASONRY CHIMNEYS WHEN A
SINGLE FAN ASSISTED
C
ATEGORY
I
APPLIANCE (80%
AFUE
FURNACE) IS
VENTED WITHOUT ADEQUATE DILUTION AIR.
D
O NOT CONNECT AN 80%
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
T
YPE
B
METAL VENT.
A
LL INSTALLATIONS USING MASONRY
CHIMNEYS MUST BE SIZED IN ACCORDANCE WITH THE APPROPRIATE VENTING
TABLES.
I
F 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.
T
HE
RISK OF CONDENSATION DAMAGE IS BEST AVOIDED BY USING THE MASONRY
CHIMNEY AS A PATHWAY FOR PROPERLY SIZED METAL LINER OR
T
YPE
B
METAL VENT.
Wash
Crown
Clay Tile Size: 8" x 8" x12"
(Each x 24" Length)
Clay Tile Size Generally
12" x 12" (24" Length)
1/2" to 1" Air Space
Second Floor
First Floor
Attic Floor
Roof Line
Throat
Damper
Breech
Clean Out
Fan Assisted
Forced Air
Furnace
Natural Draft
Water Heater
Water Heater
Vent Connector
Basement Floo
r
F.A.F. Vent
Connector
Figure 6 - Typical Multiple Flue Clay Tile Chimney
CHECKLIST SUMMARY
This checklist serves as a summary of the items to be checked
before venting an 80+ furnace into a masonry chimney. In addi-
tion, we recommend that a qualified serviceman use this check-
list to perform a yearly inspection of the furnace venting system.
This checklist is only a summary. For detailed information on each
of the procedures mentioned, see the paragraph referenced with
each item.
This inspection is based upon a draft topical report, “Masonry Chim-
ney Inspection and Relining”, issued by the Gas Research Insti-
tute. While not yet finalized, we believe this report represents the
best information on this subject which is currently available.