3
FIGURES & TABLES ................................................. 28
Figure 18 - Furnace Dimensions ..........................
28
Wiring Diagram .......................................................
29
Figure 19 - CMF95 Wiring Diagram ......................
29
Gas Information ......................................................
30
Table 7 - Gas Flow Rates .....................................
30
Table 8 - Gas Pipe Capacities ..............................
30
Table 9 - High Altitude Deration Chart for
Propane Gas .........................................
31
Table 10 - Natural Gas Heating Values .................
31
Table 11 - High Altitude Deration Chart for
Nat. Gas - High Heating Values ...........
31
Table 12 - High Altitude Deration Chart for
Nat. Gas - Low Heating Values ............
31
Venting Information ................................................
32
Table 13 - Vent Termination Clearances ...............
32
Figure 20 - Horizontal & Vertical Venting ..............
33
INSTALLATION / PERFORMANCE CHECKLIST ..... 36
IMPORTANT SAFETY INFORMATION
Please read all instructions before servicing this equipment.
Pay attention to all safety warnings and any other special
notes highlighted in the manual. Safety markings are
used frequently throughout this manual to designate a
degree or level of seriousness and should not be ignored.
WARNING
indicates a potentially hazardous situation that
if not avoided, could result in personal injury or death.
CAUTION
indicates a potentially hazardous situation that
if not avoided, may result in minor or moderate injury or
property damage.
REQUIREMENTS & CODES
WARNING:
The information listed below must be followed
during the installation, service, and operation
of this furnace. Failure to follow safety
recommendations could result in possible
damage to the equipment, serious personal
injury or death.
• This furnace must be installed in accordance with
these instructions, all applicable local building codes
and the current revision of the National Fuel Gas Code
(
ANSI Z223.1 /NFPA 54
) or the Natural Gas and Propane
Installation Code, CAN/CGA B149.1.
• Use only with type of gas approved for this furnace.
Refer to the furnace rating plate.
• Install this furnace only in a location and position as
specified on page 5.
• Provide adequate combustion and ventilation air to the
furnace space as specified on pages 6 - 10.
• Provide adequate clearances around the vent air intake
terminal as specified in Figures 1 - 4 (pages 9 - 10).
• Combustion products must be discharged outdoors.
Connect this furnace to an approved vent system only,
as specified on pages 7 - 10.
• Never test for gas leaks with an open flame. Use a
commercially available soap solution to check all
connections. See pages 16 - 17.
• This furnace is designed to operate with a maximum
external pressure rise of 0.3 inches of water column.
Consult Table 5 (page 24) and the rating plate for the
proper circulating air flow and temperature rise. It is
important that the duct system be designed to provide
the correct flow rates and external pressure rise. An
improperly designed duct system can result in nuisance
shutdowns, and comfort or noise issues.
• This furnace must not be used for temporary heating
of buildings or structures under construction.
• The Commonwealth of Massachusetts requires
compliance with regulation 248 CMR 4.00 and 5.00 for
installation of through – the – wall vented gas appliances
as follows:
