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)
Counterflow 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
flammable vapors and liquids in the
vicinity of this or any other appliance.
!
WARNING:
Improper installation, alteration, ser-
vice or maintenance can cause injury
or property damage. Refer to this
manual for assistance or consult a
qualified installer, service agency, or
the gas supplier for additional infor-
mation.
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
supplier’s instructions.
• If you cannot reach your gas supplier,
call the fire department.
GENERAL
CMF2 furnaces are high quality, direct vent
furnaces used for manufactured housing, rec-
reational 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 de-
signed for operation with either natural or pro-
pane (LP) gas.
The CMF2 series is convertible from power oil
to power gas, and vice versa. Furthermore, the
firing rate of the CMF2 80 Convertible Series
can be changed using a certified NORDYNE
conversion kit field-installed by a qualified service
technician. Refer to the “Firing Rate Conversion”
section later in these instructions for more
information on the firing rate change.
These furnaces are certified 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 quali-
fied installing agency and in accordance
with applicable local codes and ordi-
nances that govern this type of equip-
ment. Failure to properly install the fur-
nace, base assembly, and venting sys-
tem as described herein may damage the
equipment and/or the home, can create a
fire or asphyxiation hazard, violates U.S.
listing requirements, and will void the
warranty. This furnace is NOT approved
for installation with split system air con-
ditioning. Use a NORDYNE packaged air
conditioning system.
Rated
CMF2-PG
CMF2-PO
BTUH
80 CONV.
80 CONV.
Input
75,000
75,000
Output
56,000
60,000
