*MEC96 & *CEC96 Two-Stage Gas Furnaces (Type FSP CATEGORY IV Direct or Non Direct Vent Air Furnace) (Type FSP CATÉGORIE IV Direct ou four á air souffl יnon direct) RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION. These furnaces comply with requirements embodied in the American National Standard / National Standard of Canada ANSI Z21.47·CSA-2.3 Gas Fired Central Furnaces. *NOTE: Please contact your distributor or our website for the applicable Specification Sheet referred to in this manual.
Twinning......................................................... 26 115 Volt Line Connection of Accessories (Humidifier and Electronic Air Cleaner)................. 26 GAS SUPPLY AND PIPING.......................................... 27 High Altitude Derate........................................... 27 Propane Gas Conversion....................................... 28 Gas Piping Connections........................................ 28 Propane Gas Tanks and Piping................................
intended temperature-rise range with a duct system which has external static pressure within the allowable range, as specified on the furnace rating plate and OPERATIONAL CHECKS section of these instructions. WARNING FIRE OR EXPLOSION HAZARD Failure to follow the safety warnings exactly could result in serious injury, death or property damage.
WARNING WARNING SHOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF, TURN OFF THE MANUAL GAS SHUTOFF VALVE EXTERNAL TO THE FURNACE BEFORE TURNING OFF THE ELECTRICAL SUPPLY. HEATING UNIT SHOULD NOT BE UTILIZED WITHOUT REASONABLE, ROUTINE, INSPECTION , MAINTENANCE AND SUPERVISION . IF THE BUILDING IN WHICH ANY SUCH DEVICE IS LOCATED WILL BE VACANT, CARE SHOULD BE TAKEN THAT SUCH DEVICE IS ROUTINELY INSPECTED, MAINTAINED AND MONITORED.
RISQUE D'EMPOISONNEMENT AU MONOXYDE DE CARBONE Advertencia especial para la instalación de calentadores ó manejadoras de aire en áreas cerradas como estacionamientos ó cuartos de servicio. Las emisiones de monóxido de carbono pueden circular a través del aparato cuando se opera en cualquier modo. CO can cause serious illness including permanent brain damage or death.
• Return air ducts are provided and sealed to the furnace. • A return air temperature range between 60ºF (16ºC) and 80ºF (27ºC) is maintained. • MERV 11 pleated minimum 4.0” thick (Example P/N AMP-11-2025-45) air filter(s) are installed in the system and inspected daily and replaced as needed during construction and upon completion of construction. • The input rate and temperature rise are set per the furnace rating plate.
• • larger than the base of the furnace. Refer to the Horizontal Applications and Considerations for leveling of horizontal furnaces. Ensure upflow or horizontal furnaces are not installed directly on carpeting, or any other combustible material. The only combustible material allowed is wood. Exposure to contaminated combustion air will result in safety and performance-related problems.
the other opening must be within 12 inches of the bottom of the confined space. In a typical construction, the clearance between the door and door frame is usually adequate to satisfy this ventilation requirement. Clearance in accordance with local installation codes, the requirements of the gas supplier and the manufacturer's installation instructions. Dégaugement conforme aux codes d'installation locaux, aux exigences du fournisseur de gaz et aux instructions d'installation du fabricant.
Existing Furnace Removal AVERTISSEMENT NOTE: When an existing furnace is removed from a venting system serving other appliances, the venting system may be too large to properly vent the remaining attached appliances. RISQUE D'INTOXICATION AU MONOXYDE DE CARBONE Si les étapes décrites ci-dessous ne sont pas suivies pour chacun des appareils raccordés au système de ventilation au moment de sa mise en marche, cela peut entraîner une intoxication au monoxyde de carbone ou la mort.
Installation Positions Thermostat Location The thermostat should be placed approximately five feet from the floor on a vibration-free, inside wall in an area having good air circulation. Do not install the thermostat where it may be influenced by any of the following: • Drafts, or dead spots behind doors, in corners, or under cabinets. • Hot or cold air from registers. • Radiant heat from the sun. • Light fixtures or other appliances. • Radiant heat from a fireplace.
Recommended Installation Positions Drain Trap and Lines *MEC96 models may be installed upflow or horizontally with left or right side down. *CEC96 models may be installed down flow or horizontally with left or right side down. Do not install this furnace on its back. For upright upflow furnaces, return air ductwork may be attached to the side panel(s) and/or basepan. For horizontal upflow furnaces, return air ductwork must be attached to the basepan.
In addition to PVC and ABS pipe and fittings, Innoflue® by Centrotherm Eco Systems and PolyPro® by M&G Duravent are also approved vent and combustion air materials for installations in the U.S.A. and Canada. Manufacturers Installation instructions for these products must be followed. These products have specific instructions for installing, joining and terminating. Do not mix materials or components of one manufacturer with materials or components of another manufacturer.
PVC primer meeting ASTM F656 and PVC solvent cement meeting ASTM D2564 specifications must be used. Fittings must be DWV type fittings meeting ASTM D2665 and ASTM D3311. Carefully follow the manufactures instructions for cutting, cleaning and solvent cementing of PVC. ACCEPTABLE For Canadian Installations; field supplied PVC venting materials must be UL S636 listed. NOTE: Requirement does not apply to the combustion air pipe.
Termination Locations • Non-Direct Vent & Direct Vent Vent/Flue Terminations NOTE: In Canada, the current edition of CAN/CSA B149.115 takes precedence over the preceding termination description. Non-Direct Vent Vent/Flue Termination No Terminations Above Walkway <10' 3' min. Grade or Highest Anticipated Snow Level Forced Air Inlet Canadian Vent Pipe & Combustion Air Pipe Requirements 4' min. 12" All installations in Canada must conform to the requirements of CAN/CSA B149.1-15 code.
Standard Furnace Connections furnace blower compartment. The combustion air intake pipe can also be secured directly to the counterflow unit air intake pipe coupling. It is the responsibility of the installer to ensure that the piping connections to the furnace are secure, airtight, and adequately supported. COMBUSTION AIR INTAKE OPTIONS: The RF000142 coupling can be secured directly to the furnace intake coupling if condensation is a concern.
Non-Direct Vent Installations 5. Increased Clearance Configuration using (2) 45 deg. Long Sweep elbows should be considered equivalent to one 90 deg. elbow. A minimum of one 90° elbow should be installed on the combustion air intake “coupling” to guard against inadvertent blockage. 6. One 90° elbow should be secured to the combustion air intake connection.
DOWN VENTING UPFLOW MODEL FURNACES ONLY Use alternate vent & combination air locations 6’ Max. Vent Pipe Floor Combustion Air Pipe Field Supplied Drain Tee on Vent Pipe ace wlsp a r C t/ men Base 1/4” per foot min. slope to furnace Condensate trapped to prevent flue gas from escaping and routed to field supplied condensate disposal All piping and fittings must be joined per material manufacturers specifications to prevent separation and flue gas leaks.
Vent/Flue Pipe Lengths and Diameters 12" MIN. For installations at or above 7,000 feet altitude, use 3” venting. Refer to the following table for applicable length, elbows, and pipe diameter for construction of the vent/ flue pipe system of a non-direct vent installation. In addition to the vent/flue pipe, a single 90° elbow should be secured to the combustion air intake to prevent inadvertent blockage.
zone. Refer to Vent/Flue and Combustion Air Pipe - Termination Locations or Concentric Vent Termination for specific details on termination construction. For details concerning connection of pipes to the furnace, refer to the Vent/Flue Pipe and Combustion Pipe - Standard Furnace Connections or Alternate Furnace Connections. Figure 16 90° ELBOWS The number of elbows tabulated represents the number of elbows and/or tees in each (Vent/Flue & Combustion Air Intake) pipe.
• • • 3”MIN 24”MAX • 12” MIN SEPARATION 3” MIN • • 12” MIN TO GRADE OR HIGHEST ANTICIPATED SNOW LEVEL • Termination of Multiple Direct Vent Furnaces Figure 18 Concentric Vent Termination General Drain Information Refer to the directions provided with the Concentric Vent Kit (CVENT) for installation specifications. All furnace models come with a factory installed drain trap. For vertical installations, the trap will remain in the factory position.
Upflow Model Installed Vertically The trap and factory installed hoses remain as shipped. The furnace drain may exit either the right or left side of the furnace cabinet. Both sides of the cabinet have two .875” diameter holes which can be used interchangeably for drain and low voltage wiring purposes. If a higher drain exit is needed, a .875” diameter hole may be added in the area shown in Figure 21. Any unused cabinet opening must be sealed. Do not allow drain hose to sag or trap water.
top. Secure it to the barbed fitting in the elbow with a red clamp. 6. For models DM96VE0303AN, DM96VE0403AN and DM96VE0603AN; locate the hose #2 (factory installed) and cut 1.5” length from the end of the hose. Insert hose #2 from outside the cabinet through the cabinet drain’s hole nearest to the top. Secure it to the barbed fitting in the elbow with a red clamp. 7. (Draining the Collector Box) Install the non-grommet end of hose #11 from outside the cabinet in the bottom drain hole.
Upflow Model Installed Horizontally with Left Side Down-Alternate a “D” width cabinet, 5” for a “C” width cabinet, 8 ½” for a “B” width cabinet. 6. Remove the rubber plug from vent – drain elbow side port. Place hose #6 on the vent – drain elbow side port and secure with a silver clamp . 7. Unused vent-drain elbow drip leg port must be sealed to prevent flue gases from escaping.
Drain Exiting Left Side (See Figure 26) 1. Install a field supplied rubber coupling secured with a 1 1/4” clamp to enable removing the trap for future cleaning. Alternately, a PVC fitting may be glued on the trap outlet. 2. Install drain per local and National codes. Figure 27 Counterflow Model Installed Horizontally with Right Side Down (See Figure 28) Minimum 5 1/2” clearance is required for the drain trap beneath the furnace.
Hose #7 Figure 28 8. The unused vent-drain elbow drip leg port must be plugged to prevent flue gases from escaping. Insert rubber plug removed in step 7 into the 100°elbow. (Inserting a blunt tool such as a 3/16’’ Allen wrench into the center of the rubber plug will stretch the plug and allow complete insertion) 9. Place radius end of hose #4 on the side port of vent – drain elbow and secure with a gold clamp. 10. Insert a ½” diameter PVC pipe (factory installed) into hose #4 and secure with a gold clamp.
Electrical Connections junction box located inside the burner compartment. To make electrical connections through the opposite side of the furnace, the junction box must be relocated to the other side of the burner compartment prior to making electrical connections. To relocate the junction box, follow the steps shown below. NOTE: Wire routing must not to interfere with circulator blower operation, filter removal, or routine maintenance.
Single-Stage Heating Thermostat Application 24 Volt Thermostat Wiring A single-stage thermostat with only one heating stage may be used to control this furnace. The application of a single-stage thermostat offers a timed transition from low to high fire. The furnace will run on low stage for a fixed period of time before stepping up to high stage to satisfy the thermostat’s call for heat.
NOTE: Each furnace must be connected to it’s own 115 VAC power supply. The L1 connection to each furnace must be in phase (connected to circuit breakers on the same 115 VAC service panel phase leg). To verify that the furnaces are in phase, check from L1 to L1 on each furnace with a voltmeter. If the furnaces are in phase, the voltage between both furnaces will be ZERO.
to the natural reduction in the density of both the gas fuel and combustion air as altitude increases. The kit will provide the proper design certified input rate within the specified altitude range. pressure and manifold pressure are provided on the valve. The gas valve has a manual ON/OFF control located on the valve itself. This control may be set only to the “ON” or “OFF” position.
• Install a 1/8” NPT pipe plug fitting, accessible for Alternate Gas Line Location test gage connection, immediately upstream of the gas supply connection to the furnace. • Always use a back-up wrench when making the Manifold Burners Manual Shut Off Valve (upstream from ground joint pipe union) Gas Valve connection to the gas valve to keep it from turning. The orientation of the gas valve on the manifold must be maintained as shipped from the factory.
a local propane gas supplier about installing a gas detecting warning system. If the presence of gas is suspected, follow the instructions listed in the Safety Considerations section of this manual. duct connected to the furnace. NOTE: Ductwork must never be attached to the back of the furnace. For upflow installations requiring 1800 CFM or more, use either two side returns or bottom return or a combination of side / bottom.
If the total external static pressure exceeds the maximum listed on the furnace rating plate, check for closed dampers, registers, undersized and/or oversized poorly laid out duct work. The temperature rise of the furnace must be within the temperature rise range listed on the furnace rating plate.
Filters - Read This Section Before Installing The Return Air Duct work WARNING EDGES OF SHEET METAL HOLES MAY BE SHARP. USE GLOVES AS A Filters must be used with this furnace. Discuss filter maintenance with the building owner. Filters do not ship with this furnace, but must be provided, sized and installed externally by the installer. Filters must comply with UL900 or CAN/ULCS111 standards. Damage or repairs due to the installation of the furnace without filters is not covered under the warranty.
Furnace Startup Clean Comfort™ brand MERV 11 air cleaners have 5¼” media filters and are available in the following configurations. Consult your distributor for information on our complete line of IAQ Clean Comfort™ products. 1. Close the manual gas shutoff valve external to the furnace. 2. Turn off the electrical power to the furnace. 3. Set the room thermostat to the lowest possible setting. 4. Remove the burner compartment door. The figure below shows possible filter locations.
pressure. Replace regulator cover screw. 9. Close thermostat “R”, “W1” and “W2” contacts to provide a call for high stage heat. 10. Remove regulator cover screw from the high (HI) outlet pressure regulator adjust tower and turn screw clockwise to increase pressure or counterclockwise to decrease pressure. Replace regulator cover screw. 11. Turn off all electrical power and gas supply to the system. 12. Remove the manometer hose from the hose barb fitting or outlet pressure tap. 13.
DIP Switch Settings Cooling CFM Switches Heating CFM Switches Continuous Fan CFM Switches PCBBF139 CONTROL BOARD DIP SWITCHES 1 S1 2 3 4 1 S2 2 3 4 Thermostat Selection Switches Heating Fan Off Delay 1 Purpose S3 2 3 Thermostat Setup S3 Heating Fan Off Delay S3 * FACTORY SETTING 4 36 Switch Group Function Dip Switch 1 2 2 Stage Stat OFF OFF 1 Stg Stat 10 min delay 1 Stg Stat 20 min delay Auto 90 120 150 180 ON ON OFF* OFF ON ON* 3 4 OFF OFF ON* ON OFF ON OFF* ON
DIP Switch Settings PCBBF139 *MEC960303AN - COOLING DIP Sw itches S1-1 S1-2 S1-3 ON OFF OFF ON ON OFF OFF ON OFF^ OFF OFF ON^ OFF ON ON^ ON OFF ON ON ON ON^ DIP Sw itches S2-2 S2-3 S2-4 OFF OFF OFF ON OFF OFF ON ON OFF OFF ON OFF OFF OFF ON OFF ON ON ON OFF ON ON ON ON 0.1 CFM 0.2 CFM 0.3 CFM 0.4 CFM 0.5 CFM 0.6 CFM 0.7 CFM 0.
DIP Switch Settings PCBBF139 DIP Switches S1-1 S1-2 S1-3 **OFF OFF OFF ON OFF OFF ON ON OFF OFF ON OFF^ OFF OFF ON OFF ON ON^ ON OFF ON ON ON ON^ PCBBF139 DIP Switches S2-2 S2-3 S2-4 OFF OFF OFF ON OFF OFF ON ON OFF OFF ON OFF OFF OFF ON OFF ON ON ON OFF ON ON ON ON PCBBF139 DIP Switches Static S1-4 S2-1 Tstat Call W1 **OFF OFF W2 W1 ON OFF W2 W1 ON ON W2 W1 OFF ON W2 *NOT RECOMMENDED **Factory Default SINGLE STAGE COOLING^ Static Tstat Call Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y 0.
DIP Switch Settings PCBBF139 DIP Switches S1-1 S1-2 S1-3 **OFF OFF OFF ON OFF OFF ON ON OFF OFF ON OFF^ OFF OFF ON OFF ON ON^ ON OFF ON ON ON ON^ PCBBF139 DIP Switches S2-2 S2-3 S2-4 OFF OFF OFF ON OFF OFF ON ON OFF OFF ON OFF OFF OFF ON OFF ON ON ON OFF ON ON ON ON PCBBF139 DIP Switches S1-4 S2-1 Static Tstat W1 *OFF OFF W2 W1 ON OFF W2 W1 ON ON W2 W1 OFF ON W2 *NOT RECOMMENDED **Factory Default SINGLE STAGE COOLING^ Static Tstat Call Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Static Tstat Call G
DIP Switch Settings PCBBF139 DIP Switches S1-1 S1-2 S1-3 Static 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
DIP Switch Settings PCBBF139 DIP Switches S1-1 S1-2 S1-3 **OFF OFF OFF ON OFF OFF ON ON OFF OFF ON OFF^ OFF OFF ON OFF ON ON ON OFF ON^ ON ON ON^ PCBBF139 DIP Switches S2-2 S2-3 S2-4 OFF OFF OFF ON OFF OFF ON ON OFF OFF ON OFF OFF OFF ON OFF ON ON ON OFF ON ON ON ON Static Tstat Call Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Static Tstat Call G G G G G G G G 0.1 CFM 1328 1236 782 1328 782 1236 1328 947 1328 1163 782 947 1163 1236 1163 782 0.
DIP Switch Settings PCBBF139 DIP Switches S1-1 S1-2 S1-3 **OFF OFF OFF ON OFF OFF ON ON OFF OFF ON OFF OFF OFF ON OFF ON ON ON OFF ON^ ON ON ON^ PCBBF139 OFF OFF OFF Static 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
DIP Switch Settings PCBBF139 DIP Switches S1-1 S1-2 S1-3 **OFF OFF OFF ON OFF OFF^ ON ON OFF OFF ON OFF OFF OFF ON OFF ON ON^ ON OFF ON^ ON ON ON^ PCBBF139 DIP Switches S1-1 S1-2 S1-3 OFF OFF OFF ON OFF OFF^ ON ON OFF OFF ON OFF OFF OFF ON OFF ON ON^ ON OFF ON^ ON ON ON^ PCBBF139 DIP Switches S1-4 S2-1 **OFF OFF ON OFF* ON ON* OFF ON Static 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
DIP Switch Settings *MEC961004CN - COOLING PCBBF139 DIP Switches S1-1 S1-2 S1-3 **OFF OFF OFF ON OFF OFF^ ON ON OFF OFF ON OFF OFF OFF ON OFF ON ON^ ON OFF ON^ ON ON ON^ PCBBF139 DIP Switches S2-2 S2-3 S2-4 OFF OFF OFF ON OFF OFF ON ON OFF OFF ON OFF OFF OFF ON OFF ON ON ON OFF ON ON ON ON NA PCBBF139 DIP Switches S1-4 S2-1 Static Tstat Call W1 **OFF OFF W2 W1 ON OFF* W2 W1 ON ON* W2 W1 OFF ON W2 *NOT RECOMMENDED **Factory Default SINGLE STAGE COOLING^ Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y
DIP Switch Settings PCBBF139 DIP Switches S1-1 S1-2 S1-3 **OFF OFF OFF ON OFF OFF ON ON OFF OFF ON OFF^ OFF OFF ON OFF ON ON^ ON OFF ON ON ON ON^ PCBBF139 DIP Switches S2-2 S2-3 S2-4 **OFF OFF OFF ON OFF OFF ON ON OFF OFF ON OFF OFF OFF ON OFF ON ON ON OFF ON ON ON ON *CEC961005CN - COOLING Static Tstat Call Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Static Tstat Call G G G G G G G G 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.
DIP Switch Settings PCBBF139 *MEC961005CN - COOLING Static DIP Switches S1-1 S1-2 S1-3 0.1 Tstat Call Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y **OFF OFF OFF ON OFF OFF^ ON ON OFF OFF ON OFF OFF OFF ON OFF ON ON^ ON OFF ON^ Ylo Y ON ON ON^ 0.2 0.3 0.4 0.5 0.6 0.7 0.
DIP Switch Settings PCBBF139 DIP Switches S1-1 S1-2 S1-3 ON OFF OFF^ ON ON OFF OFF ON OFF OFF OFF ON OFF ON ON^ ON OFF ON^ ON ON ON^ PCBBF139 DIP Switches S2-2 S2-3 S2-4 0.2 CFM CFM 1399 1683 1106 1399 1106 1683 1399 1796 1399 2211 1106 1796 2211 1683 2211 1106 Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y Ylo Y **OFF OFF OFF 0.1 *MEC961205DN - COOLING 1327 1628 1017 1327 1017 1628 1327 1753 1327 2162 1017 1753 2162 1628 2162 1017 0.
3. Subtract the return air temperature from the supply air temperature to determine the air temperature rise. Allow adequate time for thermometer readings to stabilize. 4. Adjust temperature rise by adjusting the circulator blower speed. Increase blower speed to reduce temperature rise. Decrease blower speed to increase temperature rise. Refer to Startup Procedure and Adjustment -Circulator Blower Speeds for speed changing details.
1. Refer to the air flow table for your specific model furnace 2. If a cooling or heat pump condensing unit is being used in conjunction with this furnace, DIP switches S1-1, S1-2, S1-3 are used to select the proper cooling speeds to match the outdoor unit size. Typical CFM requirements are 400 CFM / Ton. 3. Heating speeds are selected DIP switches S1-4 & S2-1 Heating Mode Call for 1st Stage Heat Only: • On a call for first stage heat, the thermostat contacts close signaling the control module.
Cooling Mode Safety Circuit Description Low stage cooling Mode sequence: • On a call for lo cool, the YLO and G thermostat contacts close signaling the control module. • The LED will display a “GREEN”1 flash • The compressor and condenser fan are energized. The compressor is connected to the YLO terminal of the control module. • The circulator fan is energized at lo cool speed after a cool on delay. The electronic air cleaner will also be energized.
Troubleshooting Limit Fault Codes Electrostatic Discharge (ESD) Precautions If the control detects the high limit circuit open, the RED LED will flash FOUR times and energize the inducer and indoor blower. NOTE: Discharge body’s static electricity before touching unit. An electrostatic discharge can adversely affect electrical components. If the limit circuit opens five times within a single call for heat, the furnace will go into lockout for one hour.
the most recent fault to the least recent fault. ERROR” button for more than 5 seconds and less than 10 seconds (the LED will indicate this period by RAPID GREEN FLASH for 5 seconds to 10 seconds). The LED will flash three green flashes when the memory has been cleared. Resetting From Lockout Furnace lockout results when a furnace is unable to achieve ignition after three attempts during a single call for heat. It is characterized by a non-functioning furnace and a one flash diagnostic LED code.
Maintenance register or a side panel external filter rack (upflow only). A media air filter or electronic air cleaner can be used as an alternate filter. Follow the filter sizes given in the Recommended Minimum Filter size table to ensure proper unit performance. WARNING HIGH VOLTAGE ! TO AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRICAL SHOCK, DISCONNECT ELECTRICAL POWER BEFORE PERFORMING ANY SERVICE OR MAINTENANCE.
Repair and Replacement Parts Condensate Trap and Drain System (Qualified Servicer Only) • When ordering any of the listed functional parts, be sure to provide the furnace model, manufacturing, and serial numbers with the order. Annually inspect the drain tubes, drain trap, and field-supplied drain line for proper condensate drainage. Check drain system for hose connection tightness, blockage, and leaks. Clean or repair as necessary.
Troubleshooting Chart Symptoms Green LED Code Amber LED Code Red LED Code Fault Description Check Cautions •Furnace fails to operate •None •Control board LED is off •None •None •Defective disconnect switch •Determine cause and restore •Confirm electrically safe •defective door switch • No proper high and low volt power condition before 115 volt power •No 24 volt supply proceeding with repairs power •Furnace is waiting for a •Solid ON call •None •None •Furnace is not receiving a call •None Req
Troubleshooting Chart Symptoms AssociatedAmber Green LED Code2 LED Code LED Code •Furnace does not operate, four Red •None flashes on control board •Furnace does not operate, five Red •None flashes on control board •Furnace does not operate, six Red flashes •None on control board •Furnace does not operate, seven Red •None flashes on control board •Furnace does not operate, eight Red •None flashes on control board Red LED Code Fault Description Check Cautions •Temperature rise, duct static, •Confirm
Wiring Diagram YL C HIGH FIRE PRESSURE SWITCH C NO L NO PU WH C 2 TWO STAGE GAS VALVE PM (WHITE RODGERS) WH DISCONNECT FLAME SENSOR C GY GY FRONT COVER PRESSURE SWITCH NO BR 1 TO 115VAC/ 1Ø /60 HZ POWER SUPPLY WITH OVERCURRENT PROTECTION DEVICE GND L N WARNING: DISCONNECT POWER BEFORE SERVICING. WIRING TO UNIT MUST BE PROPERLY POLARIZED AND DISCONNECT GROUNDED.
Special Instructions for Products Installed in the State of Massachusetts For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied: V
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