5. MasonryChimneyVentingwithOptionalKit(Upflow/HorizontalFurnaces)
(USAONLY)Not recommendedwith downflowfurnaces
ChimneyInspection
All masonry chimney construction must conform to Standard
ANSI/NFPA211 and to any state or local codes applicable. The
chimney must be in good condition and a complete investigation
must be conducted prior to installation. If the inspection reveals
damage or abnormal conditions, make necessary repairs or seek
expert help. See "The Chimney Inspection Chart". Measure area
of tile-liner and exact height of chimney.
ConnectorType
To reduce flue gas heat loss and the chance of condensate prob-
lems, the vent connector must be double wall Type B vent.
VentingRestrictionsfor ChimneyTypes
Interior Chimney - has no sides exposed to the outside below
the roofline. All installations can be single furnace or common
vented with another draft hood equipped Category [ appliance.
Exterior Chimney - has one or more sides exposed to the out-
side below the roof line. All installations must be common vented
only with another draft hood equipped Category ! appliance.
I l Caution - failuretofollowtheseguide- I
lines may cause property damage.
OptionalMasonryVent Kit
DraftHoodAssy.Installation(SeeFigure7)
NOTE: These instructions apply to the NTC6 & GNE series fur-
naces only.
1. Disconnect power and gas supply to furnace.
2. Remove Iouvered door.
NTC6, GNE, NTN6 & NNE Series furnaces - Discard Iou-
vered door.
!!!!!!!!!!!
Draft Hood Assembly Installation
Pressure switch_'-_
(o°nld el_catiOn)
old top panel // ( (_C )__
wire harness __'_'_
25-21-98a assembly J
3. NTC6, GNE, NTN6 & NNE may be installed upflow or hori-
zontal position per furnace application. When installing
NTC6, GNE, NTN6 & NNE furnaces in a horizontal left hand
application you will need to mount the pressure switch to the
side of the cabinet.
4. NTC6, GNE, NTN6 & NNE series furnaces - Detach pres-
sure switch from top panel by removing two screws. Set
aside screws.
5. Detach field connect box from top panel by removing two
screws. Set aside screws.
6. Remove four screws holding top panel to casing. Remove
top panel. Discard top panel. Set screws aside.
7. Install draft hood assy. to casing using four screws previously
set aside.
8. Attach field connect box to draft hood assy. using two screws
previously set aside.
9. NTC6, GNE, NTN6 & NNE Series furnaces - Attach pres-
sure switch to draft hood assy. using two screws previously
set aside.
Vent Limit SwitchWiring (SeeFigureT)
1. Locate wire harness assy. which is supplied with kit. Attach
terminals on one end of wire harness assy. to vent limit switch
located on draft hood assy.
2.
3.
Locate furnace's main limit. Detach wire with insulated termi-
nal from one side of main limit.
Route wire harness assy. from vent limit switch to main limit.
Attach female terminal of wire harness assy. to vacated main
limit terminal. Attach male terminal of wire harness assy. to
insulated terminal of wire previously detached from main lim-
it.
Completionof Installation
1. NTC6, GNE, NTN6 & NNE Series furnaces - Locate Iou-
vered door supplied with kit. Install on furnace.
2. Refer to installation instructions provided with furnace to put
the furnace into operation.
pLefthand
Horizontal
rassure
// _switch
draft hood _ __.. L_'beation
assembly /_ /_ _" >
Pressure s_, _ _ _((,_ ui Limit
-<,.z e _ J. .
/ '"- _ new wire
/_"_ harness
Main f assy.
Limit
Masonry chimney venting shall be approached as follows: Using Table land Table 2 in the masonry chimney draft hood kit instructions,
the NFGC Z223.1-1992 or the United Stated National Fuel Gas Code Venting Tables.
441 012308 01 [_
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