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Hearth & Home Technologies • B41L-AU Installation Manual • 2570-980 Rev. C • 7/20
A. Appliance Certification
NOT INTENDED FOR USE AS A PRIMARY HEAT SOURCE.
This appliance is tested and approved as either supplemen
-
tal room heat or as a decorative appliance. It should not be
factored as primary heat in residential heating calculations.
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1
Product Specific and Important Safety Information
C. Gas Pressure Requirements
Pressure requirements for B41L-AU fireplaces are shown
in table below.
Two taps are provided on the right hand side of the gas
control for a test gauge connection to measure the inlet
and outlet pressures.
The fireplace and its individual shut-off valve must be dis
-
connected from the gas supply piping system during any
pressure testing of the system at test pressures in excess
of 3.4 kPa.
If the fireplace must be isolated from the gas supply pip
-
ing system by closing an individual shut-off valve, it must
be of the handle-less type.
MODEL:
B41L-AU
LABORATORY:
IAPMO OCEANA
TYPE:
Direct Vent Heater
STANDARD:
AS/NZS 5263.1.8
The Hearth & Home Technologies gas appliances discussed
in this Installer’s Guide have been tested to certification
standards and listed by the applicable laboratories.
This appliance must be installed in accordance with the AS/
NZS 5601.1 rules in force.
Gas types only through field conversions.
* The allowable Outlet (Manifold) Gas Pressure ranges are: Natural Gas 0.63 - 0.95 kPa (0.76 kPa nominal) and Propane
2.37 - 2.61 kPa (2.40 kPa nominal). Certification testing setpoint values are shown.
NOTE:
An inline fuel pressure regulator is recom
-
mended to limit NG inlet pressure to 2.49 kPa, and
Propane inlet pressure to 3.25 kPa, to ensure optimum
product performance. The inline fuel pressure regula
-
tor may be needed if any of the following symptoms
exist: pilot jetting, a highly visible pilot flame, flame
variation, etc. The inline pressure regulator should
be installed in the gas line upstream of the appliance
gas valve either at the appliance or in the utility room.
Final main and manifold gas pressure must be tested
with inline pressure regulator installed.
Natural Gas
Propane
Inlet Gas Pressure
1.13 - 3.40 kPa
2.75 - 3.40 kPa
* Outlet (Manifold) Gas Pressure
0.76 kPa
2.40 kPa
Nominal Gas Consumption
20.0 MJ/h
20.0 MJ/h
Burner Injector
#44 DMS (2.18 mm)
#55 DMS (1.32 mm)
Pilot Injector
Ø
.023 (.584 mm)
Ø
.014 (.356 mm)
B. Glass Specifications
Hearth & Home Technologies appliances manufactured
with tempered glass may be installed in hazardous lo
-
cations such as bathtub enclosures as defined by the
Consumer Product Safety Commission (CPSC). The
tempered glass has been tested and certified to the re
-
quirements of
ANSI Z97.1
and
CPSC 16 CFR 1202
(Safety Glazing Certification Council
SGCC# 1595
and
1597
. Architectural Testing, Inc. Reports
02-31919.01
and
02-31917.01
).