Installation guide

5. MasonryChimneyVentingwithOptionalKit
Chimney Inspection 3. NTC7/GNLmaybeinstalled upfloworhorizontal position perfurnace
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. Measure area of tile-liner
and exact height of chimney.
Connector Type
To reduce flue gas heat loss and the chance of condensate prob-
lems, the vent connector must be double wall Type B vent.
Venting Restrictions for Chimney Types
Interior Chimney - has no sides exposed to the outside ambient below
the roofline. All installations can be single furnace using linerless chimney
kit or common vented with another draft hood equipped Category [ ap-
pliance.
Exterior Chimney - has one or more sides exposed to the outside below
the roof line. All installations must be common vented only with another
draft hood equipped Category I appliance.
IJlLCautio n - failure to follow these guide- I
I
lines may cause severe property damage.
I
NOTE: These instructions apply to the NTC7/GNL series furnaces only.
Draft Hood Assy. Installation (SeeFigure13)
t. Disconnect power and gas supply to furnace.
2. Remove Iouvered door.
a. Remove logo from Iouvered door. Discard logo. Set aside Iou-
vered door.
application.
4. Detach field connect box from top panel by removing two screws. Set
aside screws.
5. Remove four screws holding top paneI to casing. Remove top panel.
Discard top panel. Set screws aside.
6. Install draft hood assy. to casing using four screws previously set
aside.
7. Attach field connect box to draft hood assy. using two screws pre-
viously set aside.
Vent Limit Switch Wiring (seeFigure13)
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. Locate furnace's main limit. Detach wire with insulated terminal from
one side of main limit.
3.
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 limit.
Completion of Installation
1. NTC7/GNL Series furnaces - locate Iouvered door previously set
aside. Install on furnace.
3. Refer to installation instructions provided with furnace to put the fur-
nace into operation.
Draft Hood Assembly Installation
old top panel
wire harness _ _)
25-21-98a assembly _
draft hood
_ r_. new wire
a:W
harness
M assy.
Limit
Masonry chimney venting shall be approached as follows: Using Tables 1 and 2 in the masonry chimney draft hood kit instructions.