6
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
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
Massachusetts Rules and Regulations 248
C.M.R. Sections 4.00 through 8.00.
• Installation and repair must be done by a
plumber or gas fitter licensed in the Com-
monwealth of Massachusetts.
• The flexible gas line connector used shall
not exceed 36 inches (92 centimeters) in
length..
• The individual manual shut-off must be a
T-handle type valve.
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::
• A hard-wired carbon monoxide detector
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.
• A metal or plastic identification plate must
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.
Orange Wire
(from DFC Wire
Harness)
Pressure
Regulator
Tower
Yellow Ground Wire
(From DFC Wire
Harness)
Green Wire
(From DFC Wire
Harness)
Line (In) Test Port
Manifold (Out)
Test Port
Connect GTMS
Wire Harness
Outlet
3/8" NPT
Inlet
3/8" NPT
Figure 1 - SIT Proflame Valve
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.
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.
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.
NOTE: Flame appearance will diminish
4% per 1,000 feet.
Gas Valve Diagram
The SIT Proflame valve is illustrated in
Figure 1
.
PURGE CYCLE - This is a power-vented
fireplace that requires household
electrical power to operate. When the
fireplace is turned OFF, the exhaust
blower will continue to operate for up
to two minutes, to purge exhaust gases
from the venting system. This system
will not operate during a power outage.
General Information
900358-00, 01/2018
Innovative Hearth Products
DRT63STTYN Power-Vent Direct-Vent Fireplaces
Inlet Gas Supply Pressure (all models)
Fuel #
Minimum
Maximum
Natural
Gas
5.0" WC
(1.24 kPa)
10.5" WC
(2.61 kPa)
Liquid
Propane*
11.0" WC
(2.74 kPa)
13.0" WC
(3.23 kPa)
Table 2
*Available as field conversion only.
Gas Supply Pressure Requirements
Inlet and manifold gas supply pressure require-
ments for these appliances are listed in
Tables
2 and 3
.
Manifold Gas Supply Pressure (all models)
Fuel #
Low
High
Natural
Gas
(Lo) 1.6" WC
(0.4 kPa)
(Hi) 3.5" WC
(0.87 kPa)
Liquid
Propane*
(Lo) 6.3" WC
(1.57 kPa)
(Hi) 10.0" WC
(2.49 kPa)
Table 3
*Available as field conversion only.
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
gas supply piping system by closing its
equipment shutoff valve during any pres-
sure testing of the gas supply piping
system at test pressures
equal to or less
than
1/2 psi (3.5 kPa).
Burner Orifice Sizes
(USA and Canada)
Elevation 0-4500 ft (0–1372 m)
Natural Gas
Drill size (inches)
Propane
Drill size (inches)
#32 (0.116")
[Cat. No. H8002]
#52 (0.0635")
[Cat. No. H8003]
Table 4
Standard size installed at factory.
Standard size in LP conversion kit.
