4
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
In Canada - CAN/CGA-2.17-M91 (R2009) (high
altitude):
ThE CONVERSION ShALL BE CARRIED OUT
BY A MANUFACTURER’S AUThORIZED REP-
RESENTATIVE, IN ACCORDANCE WITh ThE
REQUIREMENTS OF ThE MANUFACTURER,
PROVINCIAL OR TERRITORIAL AUThORITIES
hAVING JURISDICTION AND IN ACCORDANCE
WITh ThE REQUIREMENTS OF ThE CAN/CGA-
B149.1 OR CAN/CGA-B149.2 INSTALLATION
CODES.
REQUIREMENTS FOR ThE COMMON-
WEALTh OF MASSAChUSETTS
These fireplaces 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.
• 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 in. (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.
Gas Valve Diagram
See Figure 1 for gas valve diagram.
Figure 1 - SIT Electronic Gas Valve
Wire
(From DFC Wire
harness)
Pressure
Regulator
Tower
Yellow Ground Wire
(From DFC Wire
harness)
Green Wire
(From DFC Wire
harness)
Inlet (In) Test Port
Manifold (Out)
Test Port
Connect GTMS
Wire harness
Main Gas Inlet
3/8" NPT
Test gauge connections are provided on the front
of the gas control valve; identified IN for the inlet
and OUT for the manifold side (see
Figure 1).
Orifice Sizes - Sea Level To high Altitude
These appliances are tested and approved for
installation at elevations of 0 - 4500 ft (0 - 1370
m) above sea level, using the standard burner
orifice sizes (marked with an "*" in
Table 4).
For elevations above 4500 ft, 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.
• 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
code - latest edition.
Install the appliance according to the regulations
of the local authorities having jurisdiction, and
the (USA) National Fuel Gas Code NFPA 54 /
ANSI Z223.1 - latest edition,
or (Canada) CAN/CGA-B149.1 - latest edition.
NOTE: Flame appearance will diminish 4%
per one thousand feet of altitude.
The appliance and its appliance main gas
valve must be disconnected from the gas
supply piping system during any pressure
testing of that system at test pressures
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 pressure testing of
the gas supply piping system at test pres-
sures
equal to or less than 1/2 psi (3.5 kPa).
PURGE CYCLE
This is a power vented fireplace that
requires household electrical power
to operate. It will not operate during
a power failure. When the fireplace
is turned off, the exhaust blower will
continue to operate for approximately
fifteen (15) seconds after shutdown
to expel the exhaust gases from the
venting system.
Burner Orifice Size
Elevation 0 - 4500 ft (0 - 1370 m)
Model
Orifice Size / Catalog Number
40 in.
0.125" (1/8") * H7924 •
45 in.
0.136" (#29) * H8141 •
Table 4
* Standard size installed at factory
• Part /Cat. Number
INNOVATIVE HEARTH PRODUCTS • POWER VENT DV GAS FIREPLACES (DRT63__TYN / DRC63__TYN) • INSTALLATION INSTRUCTIONS
Gas Pressure - All Models
Tables 2 and 3
show the appliance inlet and
manifold gas pressure requirements.
Inlet Gas Supply Pressure
Minimum
Maximum
5.5" WC
(1.37 kPa)
10.5" WC
(2.62 kPa)
Table 2
Manifold Gas Supply Pressure
Low
high
1.6" WC
(.40 kPa)
3.5" WC
(.87 kPa)
Table 3
