Nordyne CMF80-PG Owner's Manual And Installation Instructions
Nordyne CMF80-PG Owner's Manual And Installation Instructions

Nordyne CMF80-PG Owner's Manual And Installation Instructions

Counterflow gas or oil heating appliance
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Counterflow Gas or Oil Heating Appliance
Owners Manual/Installation Instructions
CMF80-PG Convertible (65, 75, and 90 KBTU/H Inputs),
CMF 100-PG (90 KBTU/H Input)
CMF80-PO Convertible (65, 75, and 90 KBTU/H Inputs),
CMF 100-PO (90 KBTU/H Input)
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.
Rated
CMF-PG
CMF-PO
BTUH
80 CONV. 80 CONV.
Input
75,000
75,000
Output
56,000
60,000

GENERAL

CMF furnaces are high quality, direct vent
furnaces used for manufactured housing, rec-
reational vehicle, and residential
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 CMF series is convertible from power oil to
power gas, and vice versa. Furthermore, the
firing rate of the CMF80 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.
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
CMF-PG
CMF-PO
fire or asphyxiation hazard, violates U.S.
100
100
listing requirements, and will void the
90,000
90,000
warranty. This furnace is NOT approved
68,000
72,000
for installation with split system air con-
ditioning. Use a NORDYNE packaged air
conditioning system.
!
WARNING:
applications.

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Summary of Contents for Nordyne CMF80-PG

  • Page 1: For Your Safety

    Counterflow Gas or Oil Heating Appliance Owners Manual/Installation Instructions CMF80-PG Convertible (65, 75, and 90 KBTU/H Inputs), CMF 100-PG (90 KBTU/H Input) CMF80-PO Convertible (65, 75, and 90 KBTU/H Inputs), CMF 100-PO (90 KBTU/H Input) 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.
  • Page 2 Base Used Exhausted By Manufactured MA-100 or MA-200 NORDYNE SRJ Housing or Universal Base Roofjack Only Recreational Vehicle MA-100 or MA-200 NORDYNE SRJ Roofjack or † Residential Universal Base an Existing Chimney* CB-200A Cottage NORDYNE SRJ Roofjack or † Residential Base...
  • Page 3 For direct vent applications either the combustion Venting Requirements — Residential air duct provided with the MA Series base kit or Installations the direct vent kit can be used. The direct vent kit must be ordered separately. Only for a special CB-200A cottage base installation can WARNING: the CMF draw the combustion air from the...
  • Page 4 barometric damper can be used for your CMF (c) In so far as is practical, close all building power oil furnace installation. The barometric doors and windows and all doors between damper used must be installed such that air the space in which the appliance(s) con- from the conditioned space can only enter the nected to the venting system are located flue passageway.
  • Page 5 (g) If improper venting is observed during any UNIT INSTALLATION of the above tests, the venting system These instructions are intended for the use of must be corrected. qualified individuals specially trained and experienced in installation of this type equipment Unit Location and Clearance to Adjacent and related system components.
  • Page 6 MA-100 Universal Base Installation Install the base pan around the feeder duct with The MA-100 base is designed primarily for the (2) screws through the holes towards the replacement installation of the CMF series fur- rear of the base pan. nace where the manufactured home duct sys- tem may be small and restrictive to proper air Slit the corners of the feeder duct down to the...
  • Page 7 Install the feeder duct by bending the tabs inside Damper Installation the heat duct and using the metal tape to insure An automatic shut-off damper is available (see an airtight connection. replacement parts list). An automated shut off damper is required when the home is air con- Set the bottom base panel over the feeder duct.
  • Page 8 E. Materials located in the return duct system Using the provided hose clamp, secure the shall have a flame spread classification of flexible combustion air tubing from the burner to 200 or less. the combustion air adapter. F. Noncombustible pans having one inch CB-200A Cottage Base Installation upturned flanges are located beneath The CMF can be installed on a CB-200A cottage...
  • Page 9 J. For floor return systems, the manufac- the front tolerance is not less than 4". tured housing manufacturer or installer Adjust duct registers to obtain a tempera- shall affix a prominent marking on or near ture rise within the range specified on the the appliance where it is easily read when furnace nameplate.
  • Page 10 A roof jack adaptor is required for use on a sloping roof. Center the adaptor opening over WARNING: the roof opening, use sealant or caulking under 1. The roof jack and vent pipe as deter- the adaptor. Use roofing nails or screws on mined from the chart on in Figure 7 wood construction or sheet metal screws on must be applied.
  • Page 11 3 FEET MIN. ROOF JACK ASSY. ROOF CAP ASSY. DRAW BAND FLEX DUCT CEILING TRIM COLLAR VENT PIPE DRAW BAND CONNECTOR CAUTION MAINTAIN 2 1/2" MINIMUM CLEARANCE BETWEEN FLUE PIPE AND FLEX DUCT. FAILURE TO COMPLY WITH THIS RESTRICTION COULD CAUSE EQUIPMENT DAMAGE.
  • Page 12 in H.U.D. Standard Part 3280.103 (b) (2). These packages introduce outdoor air into the living CAUTION: space during furnace blower operation. The VentilAire IV also serves to exhaust moist and/ The furnace and its appliance main gas or hot air from the attic space. See Figures 10 valve must be disconnected from the gas and 11 for typical installation.
  • Page 13 A fuel or tank gauge is recommended for easy 4. Insert the return line through the second checking of the fuel level. Check the gauge opening in the duplex bushing. If the reading with a dip stick. bottom of the tank is lower than the pump intake, the tube should be inserted three or Locate the storage tank conveniently near the four inches from the tank bottom.
  • Page 14 Model PGB-DI Power Gas Burner “Direct Ignition” Model CMF Series Furnace TERMINAL HOUSING BUSHING BUSHING IGNITOR GROUND BLACK SCREW BLACK CLOSED BLACK CONNECTOR BLACK BUSHING HSIG WHITE CONTROL MODULE GREEN YELLOW BLUE BLUE BURNER ELECTRICAL BOX BUSHING (C & W) BLUE TO COMBUSTION MOTOR TERMINAL...
  • Page 15 DO NOT USE GASOLINE, CRANKCASE OIL, unit must be electrically grounded in accor- OR ANY OIL CONTAINING GASOLINE. dance with local codes, or in the absence of local codes, with ANSI/NFPA 70 (National Elec- trical Code). WARNING: Use 14-2 Type NM cable with ground or conduit Failure to keep supply oil clean by various with single wires.
  • Page 16 or constant blower operation. Pull the button out Replace the control box cover. for automatic operation. Push the button in for Install a disconnect switch (fused or un- constant blower operation. fused) between the appliance and the electrical supply at a convenient location Fan and Limit Settings near the appliance.
  • Page 17 If the limit will not reset, continues to the fire department. trip, or the blower does not function, notify your NORDYNE Distributor or Service PRO C. Use only your hand to push in and move immediately. the gas control lever. Never use tools. If...
  • Page 18 Firing Rate Natural Gas Natural Gas LP Gas LP Gas Time Burner Input Orifice Time Per Rev.* Orifice Per Rev.** Designation (BTUH) Number (sec) Number (sec) Gas Gun-65-DI-S 65,000 Gas Gun-75-DI-S 75,000 Gas Gun-90-DI-S 90,000 * There times are based on natural gas at an average of 1,000 BTU per cubic foot, a burner manifold pressure of 3.5 in WC, and a meter dial size of 1 cubic foot.
  • Page 19 After measuring the pressure, be sure to remove the pressure gauge or U-tube manometer from the gas valve and replace the tap plug. Ensure that the tap plug is tight Regulator and not cross-threaded. Converter Gas Burner Controls The gas valve lever can be set to ON or OFF, as shown in Figure 16.
  • Page 20 13. Open the manual shut-off valve and follow 6. Disconnect the two wires leading to gas the “Operating Instructions” as outlined control valve. previously in this manual to put the furnace into operation. 7. Remove three (3) bolts from U-shaped manifold plate and orifice assembly.
  • Page 21 90,000 BTU/hr using the appropriate certified until the pump is fully primed. NORDYNE conversion kit installed by a NORDYNE distributor or Service PRO. See the When oil flow is clear and free of air Replacement Parts Listing for the appropriate bubbles, close air-bleed valve and tighten.
  • Page 22 can be reset by interrupting the 24 volt power. FURNACE OPERATING SEQUENCE This can be easily accomplished by setting the A. Gas Furnace thermostat below room temperature for at least 1. On a call for heat, the thermostat contacts forty five (45) seconds, and then returning it to close, which applies 24 volts to the “W”...
  • Page 23 SERVICE GUIDE FOR FURNACES WITH d. Check for clean air filter and proper PGB POWER BURNER WITH DIRECT airflow IGNITION e. Loose wire connections f. Check for tripped manual reset aux- iliary limit. CAUTION: 3. 120 volts is available to burner - Test lamp does not light.
  • Page 24 a. Normal ohm reading should be be- 5. Check thermostat anticipator. (0.9 tween 40 to 75 ohms. amps) b. An infinite or zero ohm reading indi- H. Burner does not shut off. (Note: Burner cates a defective ignitor and it must will stop when the door switch is open.
  • Page 25 Control Module Status Indicator A. Burner does not start with a call for heat. A. Gas Furnace 1. Check the electrical supply to the 1. One flash - the control is in lock-out furnace. because the inducer centrifugal switch is or was stuck closed. 2.
  • Page 26 a. If indicator light stops flashing and f. If burner keeps running, system is ignition remains off, primary con- Okay. trol could be defective. If line voltage is present at the ignitor g. If indicator light is off, check cad terminals, but there is no ignition, cell assembly after disconnecting the ignitor is probably defective and...
  • Page 28 INSTALLER: Please leave these installation instructions with the homeowner. E F F I C I E N C Y R AT I N G C E RT I F I E D 708062 708062A (Replaces 7080620) Specifications and illustrations subject to change without notice and without incurring obligations.

This manual is also suitable for:

Cmf 100-pgCmf80-poCmf 100-po

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