Regency Contura RC500EX, Owners & Installation Manual

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RC500EX
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45
installation
Note: If you are using a 6" square sup -
port you may find it difficult 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 fit under a flashing).
Place the Finish Collar around the support
and fasten it to the ceiling using the screws
provided.
3. Use appropriate roof flashing. Place the flash -
ing under the upper shingles and on top of
the lower shingles approximately half of the
flashing should be under the shingles.
4. Assemble the desired lengths of Black Pipe and
Elbows necessary to reach from the appliance
adapter up through the support box and flash -
ing to proper height as per Diagram 12, local
codes or in the "Venting Arrangement" section.
Ensure that all pipe and elbow connections are
in their fully twist lock position.
5. Ensure vent is vertical and secure flashing to
the roof with roofing 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)
or Square (SQSE)
Steep pitched cathedral ceilings may require the
use of a support extension. This piece fits down
inside the support and can be adjusted to increase
the support's length by up to 22". The extension
is attached to the support using the eight metal
screws provided. Be sure there is at least a 2 inch
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
installations above 4500 ft. follow current CAN/
CGA-B149.1.
Gas Connection
The gas connection is 1/2" MIP x 24" long flexible
connector. The gas line can be rigid pipe or to make
installation easier, use a listed flexible connector
and/or copper tubing if allowed by local codes.
8. Ensure vent is vertical and secure the base of
the flashing to the roof with roofing rails, slide
storm collar over the pipe section and seal with
a mastic.
9. Install the vertical termination cap by twist
locking.
Notes:
a) For multistory vertical installations, a Ceil -
ing Fire stop is required at the second floor,
and any subsequent floor. Diagram 12. The
opening should be framed to 10 " x 10"
inside dimensions, in the same manner as
shown in diagram 9.
b) Any occupied areas above the first floor,
including closets and storage volcanicces,
through which the vertical vent passes, must
be enclosed.
Cathedral Ceilings
Round Support (RDS) &
Square Support (SQS)
If your home has a cathedral ceiling (no attic vol -
canicce 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- 1/2" clearance.
2. Place the support in the opening. Lower it to
the correct height as determined by the table
and diagram below.
Using a level, make sure the support is vertical.
If the support extends above the roof, cut it
flush 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.
Slope "X"
0/12 - 2/12 4"
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"
Since some municipalities have additional local
codes it is always best to consult with your local
authorities and the CAN/CGA B149 installation
codes.
For USA installations follow local codes and/or
the current National Fuel Gas Code, ANSI Z223.1.
When using copper or flex connectors use only
approved fittings. Always provide a union so that
gas lines can be easily disconnected for burner
and/or valve servicing. Flare nuts for copper lines
and flex connectors are usually considered to meet
this requirement.
IMPORTANT:
ALWAYS CHECK FOR
GAS LEAKS WITH A SOAP AND WATER
SOLUTION OR GAS LEAK DETECTOR.
DO NOT USE OPEN FLAME FOR LEAK
TESTING.
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 - RC500EX
For 0 to 4500 feet altitude
Fuel Type
Natural Gas Propane
Orifice Size #43 #54
Max. Input
Rating
23,000 btu/h 22,000 btu/h
Min. Input
Rating
16,000 btu/h 18,000 Btu/h
Max. Inlet Gas
Supply Pressure
1/2 psi
Min. Inlet Gas
Supply Pressure
5.0" w.c. 11" w.c.
Manifold
Pressure
3.5" w.c. 10" w.c.