
WARNING
CARBON MONOXYDE POISONING HAZARD
For all venting configurations for this appliance
and other gas appliances placed into operation
for the structure, provisions for adequate
combustion, ventilation, and dilution air must
be provided in accordance with:
U.S.A Installations : Section 9.3NFPA 54/ANSI
Z223.1 1-2009 and applicable provisions of the
local building codes.
Canadian Installation: Part 8 of CAN/CSA-B149.1-
10 and all authorities having juridiction
1.3 DETECTION SYSTEMS
It is recommended that carbon monoxide detectors be
installed wherever oil or gas fired heaters are used.
Carbon monoxide can cause bodily harm or death.
For this reason, agency approved carbon monoxide
detectors should be installed in your residence and
properly maintained to warn of dangerously high carbon
monoxide levels.
There are several sources of possible smoke and flames
in a residence. Smoke and flames can cause bodily
harm or death. For this reason, agency approved smoke
detectors should be installed in your residence and
properly maintained, to warn early on, of a potentially
dangerous fire. Also, the house should be equipped with
approved and properly maintained fire extinguishers.
Your unit is equipped with safety devices that can prevent
it from functioning when anomalies are detected such as
a blocked venting system.
1.4 DANGER OF FREEZING
CAUTION
FROZEN AND BURST WATER PIPE HAZARD
Failure to protect against the risk of freezing may
result in property damage. Special precautions
MUST be made if installing furnace in an area
which may drop below freezing. This can cause
improper operation or damage to equipment. If
furnace environment has the potential of freezing,
the drain trap and drain line must be protected.
CAUTION
PROPERTY DAMAGE HAZARD
Failure to follow this caution may result in
burst water pipes and/or property damage. If
a condensate pump is installed, a clogged
condensate drain or a failed pump may cause
the furnace to shut down. Do not leave the
home unattended during freezing weather without
turning off water supply and draining water pipes
or otherwise protecting against the risk of frozen
pipes.
Ensure all condensate drain connections are
secured and liquid tight. Use the furnished tube
clamps and verify tightness
2 INTRODUCTION
This 4-way multi-positioning and modulating Category IV
condensing furnace is CSA design certified direct vent (2
pipes) or non-direct vent (1 pipe). The furnace is factory
shipped for use with natural gas. The furnace can be
converted in the field for use with propane gas when
a factory supplied conversion kit is used. Refer to the
furnace rating plate for conversion kit information.
This Category IV furnace is approved for installation
in Manufactured/Mobile housing. The furnace must
be installed in accordance with the instruction provided
in this manual. A manufactured home installation
must conform with the Manufactured Home Construction
and Safety Standard, Title 24 CFR, Part 3280, or
when this Standard is not applicable, The Standard for
Manufactured Home Installations (Manufactured Home
Sites, Communities and Set-Ups), ANSI/NCS A225.1,
and/or MH Series Mobile Homes, CAN/CSA-Z240.
Follow all national and local codes and standards in
addition to these instructions. The installation must
comply with regulations of the serving gas supplier, local
building, heating, plumbing, and other codes.
This furnace is designed for minimum continuous return
air temperature of 60 °F (16 °C) or intermittent operation
down to 55 °F (13 °C) such as when used with a
night setback thermostat. Return air temperature must
not exceed 80 °F (27 °C). Failure to follow these
return air temperature limits may affect reliability of heat
exchangers, motors, and controls.
The furnace should be sized to provide at least 100
% of the design heating load requirement. Heating
load estimates can be made using approved methods
available from Air Conditioning Contractors of America
(Manual J); American Society of Heating, Refrigerating,
and Air Conditioning Engineers; or other approved
engineering methods. Excessive over sizing of the
furnace could cause the furnace and/or vent to fail
prematurely.
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