Owners Manual/Installation Instructions
CMF2 80-PG Convertible (65, 75, and 85 KBTU/H Inputs),
CMF2 80-PO Convertible (65, 75, and 85 KBTU/H Inputs)
Counterfl ow Gas or Oil Heating Appliance
Read all instructions carefully before beginning the installation. Read all labels and tags on
the furnace carefully and follow all precautions outlined on those labels and tags.
FOR YOUR SAFETY
Do not store or use gasoline or other fl am-
mable vapors and liquids in the vicinity
of this or any other appliance.
WARNING:
Improper installation, alteration,
service or maintenance can cause
injury or property damage. Refer to
this manual for assistance or consult
a qualifi ed installer, service agency,
or the gas supplier for additional
information.
FOR YOUR SAFETY
WHAT TO DO IF YOU
SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do not
use any phone in your building.
• Immediately call your gas supplier from
a neighbor’s phone. Follow the gas sup-
plier’s instructions.
• If you cannot reach your gas supplier,
call the fi re department.
GENERAL
CMF2 furnaces are high quality, direct vent
furnaces used for manufactured housing,
recreational vehicle, and residential
†
applications.
These furnaces are offered in either power gas
(designated by PG) or power oil (designated
by PO) models. The power gas models are
designed for operation with either natural or
propane (LP) gas.
The CMF2 series is convertible from power oil to
power gas, and vice versa. Furthermore, the fi ring
rate of the CMF2 80 Convertible Series can be
changed using a certifi ed NORDYNE conversion
kit fi eld-installed by a qualifi ed service technician.
Refer to the “Firing Rate Conversion” section
later in these instructions for more information
on the fi ring rate change.
These furnaces are certifi ed to the UL307
standards (UL 307A for oil models; UL 307B for
gas models), and can be installed in a variety of
applications, as shown in Table 1. This furnace is
not to be used for temporary heating of buildings
or structures under construction.
WARNING:
This furnace must be installed by a qualifi ed
installing agency and in accordance with
applicable local codes and ordinances that
govern this type of equipment. Failure to
properly install the furnace, base assembly,
and venting system as described herein
may damage the equipment and/or the
home, can create a fi re or asphyxiation
hazard, violates U.S. listing requirements,
and will void the warranty. This furnace is
NOT approved for installation with split
system air conditioning. Use a NORDYNE
packaged air conditioning system.
Rated
BTUH
CMF2-PG
80 CONV.
CMF2-PO
80 CONV.
Input 75,000 75,000
Output 56,000 60,000
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General