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Innovative Hearth Products
DRT63STTYN Power-Vent Direct-Vent Fireplaces
Gas Supply Pressure Requirements
Inlet and manifold gas supply pressure require-
ments for these appliances are listed in Tables
2 and 3.
Inlet Gas Supply Pressure (all models)
Fuel #
Minimum
Natural
5.0" WC
Gas
(1.24 kPa)
11.0" WC
Liquid
(2.74 kPa)
Propane*
Table 2
*Available as field conversion only.
Manifold Gas Supply Pressure (all models)
Fuel #
Low
Natural
(Lo) 1.6" WC
Gas
(0.4 kPa)
(Lo) 6.3" WC
Liquid
(1.57 kPa)
Propane*
Table 3
*Available as field conversion only.
Gas Supply Pressure Requirements
(continued from previous page)
Test gauge connections are provided on the
front of the electronic gas control valve (identi-
fied IN for the inlet and OUT for the manifold
side).
The control valves have a 3/8" (10 mm) NPT
thread inlet and outlet side of the valve. Refer
to Figure 1.
Propane tanks are at pressures that will cause
damage to valve components. Verify that the
tanks have step-down regulators to reduce the
pressure to safe levels.
These appliances must not be connected to a
chimney or flue serving a separate solid fuel
burning appliance.
(From DFC Wire
Manifold (Out)
Test Port
Line (In) Test Port
Orange Wire
(from DFC Wire
Harness)
Inlet
3/8" NPT
Figure 1 - SIT Proflame Valve
6
The appliance and its appliance main gas
valve must be disconnected from the gas
supply piping system during any pres-
sure testing of that system at test pres-
sures in excess of 1/2 psi (3.5 kPa).
The appliance must be isolated from the
Maximum
gas supply piping system by closing its
10.5" WC
equipment shutoff valve during any pres-
(2.61 kPa)
sure testing of the gas supply piping
13.0" WC
system at test pressures equal to or less
(3.23 kPa)
than 1/2 psi (3.5 kPa).
PURGE CYCLE - This is a power-vented
fireplace that requires household
High
electrical power to operate. When the
(Hi) 3.5" WC
fireplace is turned OFF, the exhaust
(0.87 kPa)
blower will continue to operate for up
to two minutes, to purge exhaust gases
(Hi) 10.0" WC
from the venting system. This system
(2.49 kPa)
will not operate during a power outage.
Orifice Sizes
Sea Level To High Altitude (All Models)
These appliances are tested and approved
for installation at elevations of 0–4500 feet
(0– 1372 meters) above sea level using the
standard burner orifice sizes listed in Table 4 ).
For elevations above 4500 feet, contact your
gas supplier or qualified service technician.
Deration
At higher elevations, the amount of BTU fuel
value delivered must be reduced by either:
• using gas that has been derated by the gas
company; or
• changing the burner orifice to a smaller size
as regulated by the local authorities having
jurisdiction and by the (USA) National Fuel
Gas Code NFPA 54/ANSI Z223.1 - latest
edition or, in Canada, the CAN/CGA-B149.1
codes - latest edition.
Green Wire
Harness)
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Install the appliance according to the regulations
of the local authorities having jurisdiction and,
in the USA, the National Fuel Gas Code NFPA
54 / ANSI Z223.1 - latest edition or , in Canada,
the CAN/CGA-B149.1- latest edition.
Gas Valve Diagram
The SIT Proflame valve is illustrated in Figure 1.
Table 4
COMMONWEALTH OF MASSACHUSETTS
REQUIREMENTS
These appliances are approved for installation in
the US state of Massachusetts if the following
additional requirements are met:
• Install this appliance in accordance with
• Installation and repair must be done by a
• The flexible gas line connector used shall
• The individual manual shut-off must be a
Massachusetts Horizontal Vent Requirements
In the Commonwealth of Massachusetts, hori-
zontal terminations installed less than seven
(7) feet above the finished grade must comply
with the following additional requirements::
Connect GTMS
Wire Harness
• A hard-wired carbon monoxide detector
Pressure
Regulator
Tower
Outlet
3/8" NPT
• A metal or plastic identification plate must
Yellow Ground Wire
(From DFC Wire
Harness)
General Information
900358-00, 01/2018
NOTE: Flame appearance will diminish
4% per 1,000 feet.
Burner Orifice Sizes
(USA and Canada)
Elevation 0-4500 ft (0–1372 m)
Natural Gas
Propane
Drill size (inches)
Drill size (inches)
#32 (0.116")
#52 (0.0635")
[Cat. No. H8002]
[Cat. No. H8003]
Standard size installed at factory.
Standard size in LP conversion kit.
Massachusetts Rules and Regulations 248
C.M.R. Sections 4.00 through 8.00.
plumber or gas fitter licensed in the Com-
monwealth of Massachusetts.
not exceed 36 inches (92 centimeters) in
length..
T-handle type valve.
with an alarm and battery back-up must be
installed on the floor level where the gas
fireplace is installed. The carbon monoxide
detector must comply with NFPA 720, be
ANSI/UL 2034 listed and be ISA certified.
be permanently mounted to the exterior of
the building at a minimum height of eight (8)
feet above grade and be directly in line with
the horizontal termination. The sign must
read, in print size no less than one-half (1/2)
inch in size, GAS VENT DIRECTLY BELOW.
KEEP CLEAR OF ALL OBSTRUCTIONS.
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