Installation & operating instructions – Century Jefferson User Manual

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Jefferson Direct Vent /Natural Vent Gas Heater

30004177

The Jefferson Direct Vent/Natural Vent Room Heater, Model No.
JDVBRN, is a vented gas appliance listed to the ANSI standard
Z21.88-2005 and CSA-2.33-2005 for Vented Room Heaters,
and CSA 2.17-M91, Gas-Fired Appliances For Use at High
Altitudes.
The installation of the Jefferson Direct Vent/Natural Vent Room
Heater must conform with local codes, or in the absence of local
codes, with National Fuel Gas Code, ANSI Z223.1/NFPA 54 — lat-
est edition and CSA B-149.1 Installation Code. (EXCEPTION:
Do not derate this appliance for altitude. Maintain the manifold
pressure at 3.5 inches w.c. for Natural Gas and 10 inches w.c.
for LP gas at maximum input.)h the type of gas indicated on the
rating plate. This appliance is not convertible for use with other
gases unless a certified kit is used.
Installation and replacement of gas piping, gas utilization
equipment or accessories, and repair and servicing of equip-
ment shall be performed only by a qualified agency, preferably
NFI or WETT (Canada) certified. The term “qualified agency”
means any individual, firm, corporation, or company that
either in person or through a representative is engaged in
and is responsible for (a) installation or replacement of gas
piping, or (b), the connection, installation, repair, or servic-
ing of equipment, who is experienced in such work, familiar
with all precautions required, and has complied with all the
requirements of the authority having jurisdiction.
The Jefferson Direct Vent/Natural Vent Room Heater should
be inspected before use and at least annually by a qualified
service agency. It is imperative that control compartments,
burners, and circulating air passageways of the appliance
be kept clean.
The Jefferson Direct Vent/Natural Vent Room Heater and its
individual shut-off valve must be disconnected from the gas
supply piping during any pressure testing of that system at test
pressures in excess of 1/2 psig (3.5 kPa).
The Jefferson Direct Vent/Natural Vent Room Heater must be
isolated from the gas supply piping system by closing its individual
manual shutoff valve during any pressure testing of the gas supply
piping system at test pressures equal to or less than 1/2 psig.
An accessible tap is located above the pilot/On-Off knob for
checking the inlet pressure.
‘Direct Vent’ describes a sealed combustion system in which
incoming outside air for combustion and outgoing exhaust enter
and exit through two separate concentric passages within the
same sealed vent system. The system does not use room air
to support combustion. The Direct Vent system permits the gas
appliance to be vented directly to the outside atmosphere through
the side of the house or vertically through the roof. Conventional
venting systems (Natural Vent) take air from the room for com-
bustion and vent the exhaust vertically through the roof to the
atmosphere.
This appliance is approved for bedroom installations in the U.S.
and Canada. Check local codes for natural vent requirements.
This appliance may be installed in an aftermarket* manufactured
(mobile) home, where not prohibited by state or local codes.
WARNING: Operation of this heater when not connected to a
properly installed and maintained venting system can result
in carbon monoxide (CO) poisoning and possible death.

The Jefferson Direct Vent/Natural Vent Room Heater, when
installed, must be electrically grounded in accordance with lo-
cal codes or, in the absence of local codes, with the National
Electrical Code ANSI/NFPA 70, (latest edition), or of the current
Canadian Electrical Code C22.1.
Due to high temperatures this appliance should be located
out of traffic and away from furniture and draperies.
WARNING: This appliance is hot while in operation. Keep
children, clothing, and furniture away. Contact may cause
burns or ignition of combustible materials.
Children and adults should be alerted to the hazards of high
surface temperatures and should stay away to avoid burns or
clothing ignition. Young children should be carefully super-
vised when they are in the same room as the appliance.
Clothing or other flammable materials should not be placed
on or near the appliance.
Any safety screen, glass or guard removed for servicing
an appliance must be replaced prior to operating the ap-
pliance.
The appliance area must be kept clear and free from com-
bustible materials, gasoline, and other flammable vapors
and liquids.
The flow of combustion and ventilation air must not be ob-
structed. The installation must include adequate accessibility
and clearance for servicing and proper operation.
WARNING: Do not operate the Room Heater with the glass
panel removed, cracked or broken. Replacement of the panel
should be done by a licensed or qualified service person.
Do not use this appliance if any part has been under water.
Immediately call a qualified service technician to inspect the
appliance and to replace any part of the control system and
any gas control which has been under water.
Do not burn wood, trash or any other material for which this
appliance was not designed. This appliance is designed to
burn either natural gas or propane only.
This gas appliance must not be connected to a chimney flue
serving a separate solid-fuel burning appliance.
CAUTION: Label all wires prior to disconnection when
servicing controls. Wiring errors can cause improper and
dangerous operation.
Verify proper operation after servicing.

* Aftermarket: Completion of sale, nor for purpose of resale, from the
manufacturer.

Installation & Operating Instructions

Proposition 65 Warning: Fuels used in gas, woodburning
or oil fired appliances, and the products of combustion of
such fuels, contain chemicals known to the State of Cali-
fornia to cause cancer, birth defects and other reproductive
harm.
California Health & Safety Code Sec. 25249.6

Jefferson Direct Vent/Natural Vent

Certified to:

ANSI Z21.88-2005 / CSA 2.33-2005

Vented Gas Fireplace Heaters

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