34
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Burner Orifice Size
Elevation 0–4500 ft (0–1372 m)
Model
Orifice Size / Catalog No.
Traditional
40 in.
0.125" (1/8") * / H7924 •
45 in.
0.136" (#29) * / H8141 •
Contemporar
y
40 in.
0.0700" (#50) *
45 in.
0.0700" (#50) *
* Standard size installed at factory
Table 14
• Part /Cat.
Number
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 (marked with an "*" in
Table 14
)
.
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 by 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.
NOTICE:
A white film may develop
on the glass enclosure panel during
the first few fires as part of the burn-in
process.
The first few times you use the
fireplace, clean the glass after each use
(
AFTER THE GLASS HAS COMPLETELY
COOLED
); otherwise, the white film
will bake onto the glass and become
difficult to remove.
See glass cleaning instructions on
Page 39
.
In Canada - CAN/CGA-2.17-M91 (R2009)
(high altitude):
THE CONVERSION SHALL BE CARRIED
OUT BY A MANUFACTURER’S AUTHO-
RIZED REPRESENTATIVE, IN ACCOR-
DANCE 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.
Burn-in Period
During the first few fires of this appliance there
will be some odor due to the curing of the
paint and burning off of lubricants used in the
manufacturing process. Depending on your
use, the burn-in period may take a few hours
or a few days.
KEEP YOUR HOUSE WELL VENTILATED
DURING THE CURING PROCESS. THE ODOR
AND HAZE EMITTED DURING THE CURING
PROCESS CAN BE QUITE NOTICEABLE AND
MAY SET OFF A SMOKE DETECTOR.
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.
Flame breadth, height and width will diminish
4% for every 1,000 feet of altitude.
INNOVATIVE HEARTH PRODUCTS • POWER VENT DV GAS FIREPLACES (DRT6340/45TYN) • INSTALLATION INSTRUCTIONS
Input (BTU/HR), Natural Gas
Model No.
Input (BTU/Hr)
40 in.
26,500–42,000
45 in.
35,000–48,000
Table 11
BTU Input
The BTU Input for these appliances is shown
in
Table 1.
Gas Pressure Requirements
Tables 2 and 3
show the appliances' gas
pressure requirements.
Inlet Gas Supply Pressure
Minimum
Maximum
5.5" WC
(1.37 kPa)
10.5" WC
(2.62 kPa)
Table 12
Manifold Gas Supply Pressure
Low
High
1.6" WC
(.40 kPa)
3.5" WC
(.87 kPa)
Table 13
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 12
on
Page 34
)
. The control valve has
a 3/8" (10 mm) NPT thread inlet and outlet
side of the valve.
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).
GENERAL INFORMATION
The fireplace models covered in this manual
are direct-vent, sealed combustion gas fire-
places designed for residential, commercial,
and manufactured home applications. Direct-
vent appliances operate with the combustion
chamber completely isolated from the indoor
environment.
All air for combustion is brought in from the
outside and exhaust gases are vented through
the same direct-vent, co-axial (intake/exhaust)
vent system.
These electronic appliances are designed to
operate on natural gas and have an electronic
intermittent pilot ignition system. External 120
Volt AC electrical power is is required to operate
these units.
These appliances comply with National Safety
Standards and are tested and listed by PFS
(Report No. F14-106) to ANSI Z21.50b-2009
(in Canada, CGA 2.22b-2009), and CAN/
CGA-2.17-M91 (R2009) in both the USA and
Canada, as vented gas fireplaces.
The Installation must conform to local codes or,
in the absence of local codes, with the National
Fuel Gas Code, ANSI Z223.1/NFPA 54 - latest
edition, or the Natural Gas Installation Code,
CAN/CGA B149.1 - latest edition. The appliance,
when installed, must be electrically grounded in
accordance with local codes or, in the absence
of local codes, with the National Electrical Code,
ANSI/NFPA 70 - latest edition, or the Canadian
Electrical Code, CSA C22.1 - latest edition.
