Cathedral Ceilings; High Elevation; Gas Connection - HAMPTON BAY Hampton H35-NG2 Owners & Installation Manual

INSTALLATION

CATHEDRAL CEILINGS

Round Support (RDS) &
Square Support (SQS)
If your home has a cathedral ceiling (no attic space
between the ceiling and the roof), install the chimney
and support as follows.
1) Situate the chimney in a convenient location as
near as possible to the appliance outlet. Cut
and frame a hole in the roof for the support.
The sides of this hole must be vertical with 1
1/4" (32mm) clearance.
2) Place the support in the opening. Lower it to
the correct height as determined by the table
and diagram below.
Slope
0/12 - 2/12
2/12 - 7/12 5-1/2"
7/12 - 12/12 6-3/4"
12/12 - 24/12 7-1/2"
24/12+ 12-1/2"
Using a level, make sure the support is verti-
cal. If the support extends above the roof,
cut it fl ush with the top of the roof. Nail the
support to the frame opening using (8) 3"
spiral nails or #8 x 1-1/2" screws.
Note: If you are using a 6" square support you
may fi nd it diffi cult to screw it in place
because it is fairly small inside.
Simpson Dura-Vent has provided angle brack-
ets with this support which can be screwed
to the outside of the support box and nailed
to surrounding framing as required. Use a
minimum of four #8 x 1/2" screws per bracket.
In some cases these brackets may need to
be trimmed (e.g.: to fi t under a fl ashing).
Place the Finish Collar around the support
and fasten it to the ceiling using the screws
provided.
3) Use appropriate roof fl ashing.
fl ashing under the upper shingles and on top
of the lower shingles approximately half of the
fl ashing should be under the shingles.
28
4) Assemble the desired lengths of Black Pipe
and Elbows necessary to reach from the ap-
pliance adaptor up through the support box
and fl ashing to proper height as per Diagram
12, local codes or the "Exterior Vent Terminal
Locations" section. Ensure that all pipe and
elbow connections are in their fully twist lock
position.
5) Ensure vent is vertical and secure fl ashing to
the roof with roofi ng nails. Slide the storm
collar over the pipe section and seal with a
mastic.
6) Twist lock the vent cap on to the last section.
Support Extensions - Round (RDSE)
Steep pitched cathedral ceilings may require the
use of a support extension. This piece fi ts down
inside the support and can be adjusted to increase
the support's length by up to 22" (559mm). The
extension is attached to the support using the
eight metal screws provided. Be sure there is at
least a 2" (51mm) overlap where the extension
joins the support.

HIGH ELEVATION

This unit is approved in Canada for altitude to
4500 ft. (CAN/CGA-2.17-M91). For Natural Gas
"X"
installations above 4500 feet, follow current CAN/
CSA-B149.1.
4"

GAS CONNECTION

The gas connection is a 3/8" NPT 90
gas line can be rigid pipe or to make installation
easier, use a listed fl exible connector and/or copper
tubing if allowed by local codes. Since some mu-
nicipalities have additional local codes it is always
best to consult with your local authorities and the
CAN/CSA B149.1 installation codes.
For USA installations follow local codes and/or the
current National Fuel Gas Code, ANSI Z223.1.
When using copper or fl ex connectors use only
approved fi ttings. Always provide a union so that
gas lines can be easily disconnected for burner
and/or valve servicing. Flare nuts for copper lines
and fl ex connectors are usually considered to
meet this requirement.
IMPORTANT: ALWAYS CHECK FOR
GAS LEAKS WITH A SOAP AND WA-
TER SOLUTION OR GAS LEAK DE-
TECTOR. DO NOT USE OPEN FLAME
FOR LEAK TESTING.
Place the
or Square (SQSE)
o
elbow. The
Note: Prior to any pressure testing of the gas
supply piping system that exceeds test
pressures of 1/2 psig, this appliance must
be disconnected from the piping system.
If test pressures equal to or less than 1/2
psig are used then this appliance must
be isolated from the piping system by
closing its individual manual shut-off
valve during the testing.
SYSTEM DATA - H35-2
For 0 to 4500 feet altitude
Natural Gas
Max. Input Rating 36,000 Btu/h
Min. Input Rating 18,000 Btu/h
Orifi ce Size #33 DMS
Convertible to:
Max. Input Rating 30,000 Btu/h
Min. Input Rating 14,300 Btu/h
Orifi ce Size #37 DMS
Propane
Max. Input Rating 34,000 Btu/h
Min. Input Rating 17,500 Btu/h
Orifi ce Size #51 DMS
Convertible to:
Max. Input Rating 28,500 Btu/h
Min. Input Rating 15,000 Btu/h
Orifi ce Size #52 DMS
Supply Pressure
Natural Gas min.
Propane min.
Manifold Pressure
Natural Gas 3.8"
Propane 11"
Hampton® H35-2 Direct Vent Freestanding Gas Stove
5.0" w.c.
12.0" w.c.
+/- 0.2" w.c.
+/- 0.2" w.c.