39
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Care and Operation
901140-00, 01/2021
Innovative Hearth Products
DRT63ST-B Power-Vent Direct-Vent Fireplaces
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 44
.
Deration
At the time of installation, it must be deter-
mined if the appliance needs to be derated.
Contact your local gas supplier for deration
requirements for your area.
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.
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.
Gas Pressure Requirements
(All Models)
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
Table 2
on
Page 6
). The control valve has a 3/8" (10 mm)
NPT thread inlet and outlet side of the valve.
GENERAL INFORMATION
The fireplace models covered in this manual
are direct-vent, sealed combustion gas fire-
places designed for residential application.
Direct-vent appliances operate with the com-
bustion 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, coaxial (intake/exhaust)
vent system.
These appliances are designed to operate on
natural only. The system is switchable between
standing and intermittent pilot modes. External
electrical power is required to operate these
units.
These models come standard with a remotely
modulated gas valve. The included transmitter
remotely controls flame appearance and heat
output (manual gas valve adjustment is not
possible).
These appliances comply with National Safety
Standards and are tested and listed by PFS
TECO (Report No. F14-107) to ANSI Z21.88
(in Canada, CSA-2.33), and CAN/CGA-2.17-
M91 (CSA P4.1) in both USA and Canada, as a
vented gas fireplace.
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 - lat-
est edition, or the Natural Gas and Propane
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.
Orifice Sizes:
Sea Level to High Altitude
(All Models)
These appliances are tested and approved
for installations at elevations of 0–4500 feet
(0–1372 meters) above sea level using the
standard burner orifice sizes.
For higher elevations, contact your gas supplier
or qualified service technician.
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).
