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INSTALLATION INSTRUCTIONS FOR *CVC9/95 & *MVC95 - TWO-STAGE GAS FURNACE
(Type FSP CATEGORY IV Direct or Non Direct Vent Air Furnace)
Installer: Affix all manuals adjacent to the unit.
These furnaces comply with requirements em-
®
bodied in the American National Standard / Na-
tional Standard of Canada ANSI Z21.47·CSA-2.3
C US
Gas Fired Central Furnaces.
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
ATTENTION INSTALLING PERSONNEL
As a professional installer you have an obligation to know the p
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SHIPPING INSPECTION ........................................................................................................................... 6 ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ..................................................................................... 6 TO THE INSTALLER .............................................................................................................................. 6 IMPORTANT NOTE TO THE OWNER REGARDING PRODUCT WARRANTY........................
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115 VOLT LINE CONNECTION OF ACCESSORIES (HUMIDIFIER AND ELECTRONIC AIR CLEANER) ............................. 29 24 VOLT HUMIDIFIER ......................................................................................................................... 30 GAS SUPPLY AND PIPING ......................................................................................................................... 30 HIGH ALTITUDE DERATE ..........................................................................
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FLAME SENSOR ................................................................................................................................49 TROUBLESHOOTING ................................................................................................................................. 49 ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ................................................................................... 49 DIAGNOSTIC CHART..............................................................
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SAFETY PRECAUTIONS Adhere to the following warnings and cautions when installing, adjusting, altering, servicing, or operating the furnace. To ensure proper installation and operation, thoroughly read this manual for specifics pertaining to the installation and application of this product. WARNING WARNING TO PREVENT POSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR TO PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER DEATH DUE TO ELECTRICAL SHOCK, THE FURNACE MUST BE LOCATED TO INSTALLATION, ADJU
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PRODUCT DESCRIPTION & APPLICATION 4. Discharge your body to ground before removing a new SHIPPING INSPECTION control from its container. Follow steps 1 through 3 if All units are securely packed in shipping containers tested ac- installing the control on a furnace. Return any old or new cording to International Safe Transit Association specifications. controls to their containers before touching any ungrounded The carton must be checked upon arrival for external damage. If object. damage is f
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PRODUCT DESCRIPTION & APPLICATION Dual certification means that the combustion air inlet pipe is op- WARNING tional and the furnace can be vented as a: Non-direct vent (single pipe) central forced air furnace in TO PREVENT PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO FIRE, DO NOT INSTALL THIS FURNACE IN A MOBILE HOME, TRAILER, OR which combustion air is taken from the installation area RECREATIONAL VEHICLE. or from air ducted from the outside or, Direct vent (dual pipe) central forced air
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LOCATION REQUIREMENTS & CONSIDERATIONS A copy of the National Fuel Gas Code (NFPA 54/ANSI Z223.1) • Locate the furnace so condensate flows downwards to can be obtained from any of the following: the drain. Do not locate the furnace or its condensate American National Standards Institute drainage system in any area subject to below freezing 1430 Broadway temperatures without proper freeze protection. Refer to New York, NY 10018 Condensate Drain Lines and Trap for further details. • Ensure adeq
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LOCATION REQUIREMENTS & CONSIDERATIONS TOP • If the furnace is used in connection with a cooling coil TOP unit, install the furnace upstream or in parallel with the cooling coil unit. Premature heat exchanger failure will result if the cooling unit is placed ahead of the furnace. SIDE SIDE SIDE • If the furnace is installed in a residential garage, position the furnace so that the burners and ignition source are BOTTOM located not less than 18 inches (457 mm) above the BOTTOM floor. Protect th
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COMBUSTION & VENTILATION AIR REQUIREMENTS 2. Inspect the venting system for proper size and horizontal • Unconditioned areas behind the thermostat, such as pitch, as required by the National Fuel Gas Code, ANSI an outside wall. Z223.1 or the Natural Gas and Propane Installation Code, Consult the instructions packaged with the thermostat for CSA B149.1-05 and these instructions. Determine that there mounting instructions and further precautions. is no blockage or restriction, leakage, corrosion a
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HORIZONTAL APPLICATIONS & CONSIDERATIONS When using the horizontal alternate vent configuration, you must HORIZONTAL APPLICATIONS & CONSIDERATIONS use the RF000142 vent drain kit. See following illustration. Horizontal applications, in particular, may dictate many of the VENT-DRAIN “FIELD-SUPPLIED DRAIN installation’s specifics such as airflow direction, ductwork connec- HOSE” FROM VENT- DRAIN CONNECTED TO tions, flue and combustion air pipe connections, etc. The basic CONDENSATE DRAIN LINE
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PROPANE GAS/HIGH ALTITUDE INSTALLATIONS Contact the distributor for a tabular listing of appropriate ALTERNATE ELECTRICAL AND GAS LINE CONNECTIONS manufacturer’s kits for propane gas and/or high altitude installa- This furnace has provisions allowing for electrical and gas line con- tions. The indicated kits must be used to insure safe and proper nections through either side panel. In horizontal applications the furnace operation. All conversions must be performed by a quali- connections can
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VENT/FLUE PIPE & COMBUSTION AIR PIPE Piping must be adequately secured and supported to prohibit sag- WARNING ging, joint separation, and/or detachment from the furnace. Hori- zontal runs of vent/flue piping must be supported every three to five TO AVOID BODILY INJURY, FIRE OR EXPLOSION, SOLVENT CEMENTS feet and must maintain a 1/4 inch per foot downward slope, back MUST BE KEPT AWAY FROM ALL IGNITION SOURCES (I.E., SPARKS, OPEN towards the furnace, to properly return condensate to the furnac
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VENT/FLUE PIPE & COMBUSTION AIR PIPE Non-Direct Vent vicing. Combustion Air and Vent piping should be routed in a man- & Direct Vent ner to avoid contact with refrigerant lines, metering devices, con- Vent/Flue Terminations densate drain lines, etc. If necessary, clearances may be in- Non-Direct Vent creased by utilizing two 45 deg. Long-Sweep Elbows and creat- Vent/Flue Termination ing an “S” joint to provide additional space at connection loca- tions. This joint can be rotated on the fitting
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VENT/FLUE PIPE & COMBUSTION AIR PIPE COMBUSTION VENT/FLUE COMBUSTION 4. Cut the vent/flue pipe 3.75 inches from the flanged end of AIR PIPE VENT/FLUE AIR PIPE PIPE (DIRECT VENT ONLY) PIPE (DIRECT VENT ONLY) the pipe (see “Vent/Flue Pipe Cuts” figure). The section of 90 PVC RUBBER 90 PVC RUBBER pipe attached to the coupling will reach through the side ELBOW COUPLING ELBOW COUPLINGS (NON-DIRECT VENT) WITH WORM (NON-DIRECT VENT) WITH WORM GEAR CLAMPS GEAR CLAMPS panel to the induced draft blowe
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VENT/FLUE PIPE & COMBUSTION AIR PIPE 8. Upflow and Counterflow units. 3. Remove plastic plug from alternate combustion air intake location. Relocate and install plug in standard air intake For horizontal installations, externally secure the field- location (basepan). Plug the remaining hole in the blower supplied vent/flue pipe directly to the vent/flue coupling using deck with the plastic plug included in the drain kit bag. a PVC or ABS coupling or elbow. 4. With the gasket facing the cabine
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VENT/FLUE PIPE & COMBUSTION AIR PIPE 1) One 90° elbow should be secured to the combustion air intake connection. NON-DIRECT VENT (SINGLE PIPE) PIPING 2) Minimum requirement for each vent pipe is five (5) feet in length and one Non-direct vent installations require only a vent/flue pipe. The vent elbow/tee. pipe can be run horizontally with an exit through the side of the 3) Tee used in the vent/flue termination must be included when determining the building or run vertically with an exit throu
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VENT/FLUE PIPE & COMBUSTION AIR PIPE In a basement installation, the vent/flue pipe can be run between DIRECT VENT (DUAL PIPE) PIPING joist spaces. If the vent pipe must go below a joist and then up into The inlet air screens provided in the installation instruction packet the last joist space to penetrate the header, two 45° elbows should are available for the installer to use in the inlet of the combustion air be used to reach the header rather than two 90° elbows. pipe to prevent animals fro
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VENT/FLUE PIPE & COMBUSTION AIR PIPE TEE (OPTIONAL) UPFLOW Direct Vent (Dual Pipe) Maximum Allowable Length* VENT/FLUE (ft) of Vent/Flue & Combustion Air Intake Pipe (1)(2)(3)(5) COMBUSTION (4) Number of Elbows Unit Input Termination Pipe AIR INTAKE (Btu) Style (inch) 1 2 34 56 78 12" MIN. Standard 2 or 2 1/2 71686562 5956 5350 45,000 Alternate 2 or 2 1/2 58555249 4643 4037 SCREEN 2 or 2 1/2 49464340 3734 3128 Standard 3 71686562 5956 5350 70,000 2 or 2 1/2 36333027 2421 1815 Alternate 3 57545
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VENT/FLUE PIPE & COMBUSTION AIR PIPE 90º MEDIUM VENT/INTAKE TERMINATIONS FOR INSTALLATION OF MULTIPLE RADIUS ELBOW DIRECT VENT FURNACES 12” MIN If more than one direct vent furnace is to be installed vertically through a common roof top, maintain the same minimum clear- ances between the exhaust vent and air intake terminations of 24" MAX 3" MIN adjacent units as with the exhaust vent and air intake terminations 24" MAX of a single unit. AIR If more than one direct vent furnace is to be inst
