Service Instructions 80% Single Stage Gas Furnaces GMES80, AMES80, GCES80, ACES80, VMES80, VCES80 & Accessories ® ONLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL, ADJUST, SERVICE OR REPAIR ( HEREINAFTER, “SERVICE”) THE EQUIPMENT SPECIFIED IN THIS MANUAL SHOULD SERVICE THE EQUIPMENT. THE MANUFACTURER WILL NOT PROP 65 WARNING FOR CALIFORNIA CONSUMERS BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM IMPROPER SERVICE OR SERVICE PROCEDURES.
TABLE OF CONTENTS IMPORTANT INFORMATION............................2- 4 TROUBLESHOOTING.................................36 - 37 PRODUCT IDENTIFICATION..........................5 - 9 POLARIZATION & PHASING............................38 ACCESSORIES...........................................10 - 13 MAINTENANCE...........................................39 - 40 OPERATING INSTRUCTIONS.....................14 - 16 SERVICING..................................................41 - 55 PRODUCT DESIGN.............
IMPORTANT INFORMATION To locate an authorized servicer, please consult your telephone book or the dealer from whom you purchased this product. For further assistance, please contact: CONSUMER INFORMATION LINE GOODMAN® BRAND PRODUCTS TOLL FREE 1-877-254-4729 (U.S. only) email us at: customerservice@goodmanmfg.com fax us at: (731) 856-1821 (Not a technical assistance line for dealers.) CONSUMER INFORMATION LINE AMANA® BRAND PRODUCTS TOLL FREE 1-877-254-4729 (U.S. only) email us at: hac.consumer.
IMPORTANT INFORMATION CO can cause serious illness including permanent brain damage or death. B10259-216 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. El monóxido de carbono puede causar enfermedades severas como daño cerebral permanente ó muerte.
PRODUCT IDENTIFICATION The model and manufacturing number are used for positive identification of component parts used in manufacturing. Please use these numbers when requesting service or parts information.
PRODUCT IDENTIFICATION The model and manufacturing number are used for positive identification of component parts used in manufacturing. Please use these numbers when requesting service or parts information.
PRODUCT IDENTIFICATION MODEL # MFG. # 80 % GAS FURNACES AMES80 AMES800403AXAA AMES800603AXAA AMES800604BXAA AMES800804BXAA AMES800805CXAA AMES801005CXAA AMES801205DXAA Amana® Brand 80% gas furnace, 33 3/8" tall, upflow, horizontal right of left installation positions. Induced draft, two-tone gray cabinet and panels. Multi-speed PSC motor, 120 volt carbide mini Igniter with integrated circuit board. Left or right side gas entry.
PRODUCT IDENTIFICATION MODEL # MFG. # GMES80 GMES800403A*A* GMES800603A*A* GMES800604B*A* GMES800804B*A* GMES800805C*A* GMES801005C*A* GMES801205D*A* GMES80 GMES800403A*BA GMES800603A*BA GMES800604B*BA Goodman® Brand 80% gas furnace, 33 3/8" tall, upflow, horizontal right of left installation positions. GMES800804B*BA Induced draft, Goodman gray cabinet and panels. Multi-speed PSC motor, 120 volt carbide mini GMES800805C*BA Igniter with integrated circuit board.
PRODUCT IDENTIFICATION MODEL # MFG. # 80 % GAS FURNACES GCES80 GCES800403A*AA GCES800603A*AA GCES800804B*AA GCES801005C*AA Goodman® Brand 80% gas furnace, 33 3/8" tall, dedicated downflow installation, Induced draft, Goodman gray cabinet and panels. Multi-speed PSC motor, 120 volt carbide mini Igniter with integrated circuit board. Left or right side gas entry. Aluminized steel heat exchangers.
ACCESSORIES · 10 (1) (1) (1) (1) LPLP03 MVK-02 (1) Masonry Vent Kit ACES801005CXAC (1) MVK-01 ACES800804BXAC (1) Masonry Vent Kit ACES800603AXAC (1) HANG21 ACES800403AXAD (1) High Altitude Orifices W/Pressure Switch AMES801405DNBC (1) · · · · · · · · · · · · TK-400 AMES801205DXAC (1) Twining Kit AMES801005CXAC (1) FTK04 AMES800805CXAC · · · · · · · · · · · · · · · · Twining Kit AMES800804BXAC LPT03 ASAS / GSAS Electronic Air Cleaner AMES800604BXAC SBT21 AMU /GMU Media A
ACCESSORIES GMES801205D** GCES800403A** GCES800603A** GCES800804B** GCES801005C** · (1) (1) (1) (1) (1) (1) HANG21 MVK-01 MVK-02 FSRKG14 FSRKG17 FSRKG21 FSRKG24 Masonry Vent Kit Masonry Vent Kit Sound Reduction Kit Sound Reduction Kit Sound Reduction Kit Sound Reduction Kit LPT03 Propane Gas Conversion Kit GMES801005C** (1) High Altitude Orifices W/Pressure Switch SBT21 Downflow Subbase 21" GMES800805C** (1) HANG20 SBT17 Downflow Subbase 17.
ACCESSORIES GCES800403A*BE GCES800603A*BE GCES800804B*BD GCES801005C*BD · 12 (1) (1) (1) (1) (1) (1) MVK-01 MVK-02 Masonry Vent Kit LPT03 Propane Gas Conversion Kit GMES801205D*BC (1) Masonry Vent Kit SBT21 Downflow Subbase 21" GMES801005C*BD (1) HANG21 SBT17 Downflow Subbase 17.
(1) (1) (1) (1) (1) (1) (1) (1) · · · · · · · · · · · · · · · · (2) LPLP02 LPLP03 TK-400 HANG21 MVK-01 MVK-02 LP LOW PRESSURE SHUT OFF KIT TWINNING KIT HIGH ALTITUDE ORIFICES W/PRESSURE SWITCH MASONARY VENT KIT MASONARY VENT KIT VMES800604BNAA (2) VMES800804BNAA AMU/GMU ASAS/GSAS SBT14 SBT17 SBT21 LPT03 LPLP02 LPLP03 TK-400 HANG21 MVK-01 MVK-02 ELECTRONIC AIR CLEANER DOWNFLOW SUBBASE 14" DOWNFLOW SUBBASE 17.
OPERATING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions explosion may result causing property damage, personal injury or loss of life. A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand.
OPERATING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly,a fire or explosion may result causing property damage,personal injury or loss of life. A.This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do not try to light the burner by hand. B.BEFOREOPERATING smell all around the appliance area for gas.
OPERATING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE OPERATING If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burners. Do not try to light the burners by hand. B. BEFORE OPERATING smell around the appliance area for gas.
PRODUCT DESIGN Safety Please adhere to the following warnings and cautions when installing, adjusting, altering, servicing, or operating the furnace. WARNING TO PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE, REFER TO THIS MANUAL. FOR ADDITIONAL ASSISTANCE OR INFORMATION, CONSULT A QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.
PRODUCT DESIGN Location Requirements and Considerations WARNING TO PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVED WHEN INSTALLING THE UNIT. Follow the instructions listed below when selecting a furnace location. Refer also to the guidelines provided in the Combustion and Ventilation Air Requirements section in this manual or the installation instructions for details.
PRODUCT DESIGN Furnace Suspension If suspending the furnace from rafters or joist, use 3/8" threaded rod and 2”x2”x1/8” angle iron as shown in the following figure. If the furnace is installed in a crawl space it must also be suspended from the floor joist or supported by a concrete pad. Never install the furnace on the ground or allow it to be exposed to water. The length of rod will depend on the application and the clearances necessary. f.
PRODUCT DESIGN If this furnace is to be installed in the same space with other gas appliances, such as a water heater, ensure there is an adequate supply of combustion and ventilation air for the other appliances. Refer to the latest edition of the National Fuel Gas Code NFPA 54/ANSI Z223.1 (Section 9.3), or CAN/ CGA B149 Installation Codes (Sections 7.2, 7.3, or 7.4), or applicable provisions of the local building codes for determining the combustion air requirements for the appliances.
PRODUCT DESIGN Chimney or Gas Vent 9.3.3.1 Two Permanent Openings Method. Two permanent openings, one commencing within 12 in. (300 mm) of the top and one commencing within 12 in. (300 mm) of the bottom, of the enclosure shall be provided.
PRODUCT DESIGN 9.3.5 Engineered Installations. Engineered combustion air installations shall provide an adequate supply of combustion, ventilation, and dilution air and shall be approved by the authority having jurisdiction. 9.3.6 Mechanical Combustion Air Supply. Where all combustion air is provided by a mechanical air supply system, the combustion air shall be supplied form outdoors at the minimum rate of 0.35 ft3/min per 1000 Btu/hr (0.034 m3/min per kW) for all appliances located within the space. 9.3.
PRODUCT DESIGN When resizing any portion of the common venting system, use the appropriate table in Appendix G in the latest edition of the National Fuel Gas Code NFPA 54/ANSI Z223.1. Upflow or Horizontal units are shipped with the induced draft blower discharging from the top of the furnace ("Top" is as viewed for an upflow installation). The induced draft blower can be rotated 90 degrees for Category I venting. Refer to the following figure.
PRODUCT DESIGN Proper Chimney Termination? (Check 1) No 10' or Less Line, terminate with listed vent cap (Fix 1) 2' Min. 2' Min. 3' Min. Yes Chimney channel free of solid and liquid fuel appliances? (Check 2) Wall or Parapet No Change venting arrangements (Fix 2) Chimney 10' or Less Yes Crown in good condition (Check 3) No Ridge Rebuild crown (Fix 3) and/or Reline (Fix 4) No Reline (Fix 4) 3' Min. Chimney Yes Cleanout free of debris? (Check 4) 2' Min.
PRODUCT DESIGN Check 2 - Any solid or liquid fuel appliances vented into this chimney channel. A cleanout (dropleg) must be present such that the upper edge of the cleanout cover is at least 12 inches below the lower edge of the lowest chimney inlet opening. A chimney without a cleanout could become partially blocked by debris. If no cleanout is present, the chimney must be relined (Fix 4). Remove the cleanout cover, and examine the cleanout for debris.
PRODUCT DESIGN Check 7 - Complete the Installation. If Checks 1 through 6 have been satisfactory, and the liner is an acceptable size as determined by the tables in National Fuel Gas Code NFPA 54/ANSI Z223.1 - latest edition and in the National Standard of Canada, CAN/CGA B149.1 and CAN/CGA B149.2 - latest editions and amendments, then the clay tile liner can probably be used as a vent for the gas appliances.
PRODUCT DESIGN Some manufacturers of flexible liners offer an insulation sleeve designed to be added to the liner before it is installed in the chimney. (Poured insulation, either vermiculite or other materials, is no longer recommended.) Insulation will need to be added to the flexible liner if: • It is required by the liner manufacturer’s instructions. • The previous liner was properly sized and installed, and suffered from condensation damage. • It is required by your local building codes.
PRODUCT DESIGN the proper amount of air into the burner. This may cause incomplete combustion, flashback, and possible yellow tipping. In some areas the gas supplier may artificially derate the gas in an effort to compensate for the effects of altitude. If the gas is artificially derated, the appropriate orifice size must be determined based upon the BTU/ft3 content of the derated gas and the altitude. Refer to the National Fuel Gas Code, NFPA 54/ANSI Z223.
PRODUCT DESIGN 7. Install a manual shutoff valve between the gas meter and unit within six feet of the unit. If a union is installed, the union must be downstream of the manual shutoff valve, between the shutoff valve and the furnace. 8. Tighten all joints securely. 9. Connect the furnace to the building piping by one of the following methods: – Rigid metallic pipe and fittings. – Semi-rigid metallic tubing and metallic fittings. Aluminum alloy tubing must not be used in exterior locations.
PRODUCT DESIGN WARNING IF THE GAS FURNACE IS INSTALLED IN A BASEMENT, AN EXCAVATED AREA OR A CONFINED SPACE, IT IS STRONGLY RECOMMENDED TO WARNING IF THE INFORMATION IN THESE INSTRUCTIONS IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL CONTACT A PROPANE SUPPLIER TO INSTALL A GAS DETECTING INJURY OR LOSS OF LIFE. WARNING DEVICE IN CASE OF A GAS LEAK. – • SINCE PROPANE GAS IS HEAVIER THAN AIR, ANY LEAKING GAS CAN SETTLE IN ANY LOW AREAS OR CONFINED SPACES.
PRODUCT DESIGN When installing a propane storage tank, the contractor must consider proper tank sizing, safety, efficiency, ground characteristics and aesthetics. For a residential customer, the size may range from 100-1,000 gallons, depending on household use. Typically, a 500 gallon tank is ample for an average four-bedroom home. However, it is best to consult your local propane supplier to ensure the proper sizing for propane storage requirements.
PRODUCT DESIGN HUMIDIFIER WIRING Accessory wiring connections are to be made through the 1/4" quick connect terminals provided on the furnace integrated control module. The Humidifier and Electronic Air Cleaner hot and neutral terminals are identified as HUM and EAC. All field wiring must conform to applicable codes. Connections should be made as shown below. THERMOSTAT WIRING - SINGLE-STAGE The single stage furnace will have a "W" terminal and will use a single stage thermostat.
PRODUCT DESIGN Upflow / Horizontal Models Minimum Recommended Filter Size^ *0403A* *0603A* *0604B* *0803B* *0804B* *0805C* *0805D* *1005C* *1205D* 1 - 16 X 25 Side or 1 - 14 X 24 Bottom Return 1 - 16 X 25 Side or 1 - 14 X 24 Bottom Return 1 - 16 X 25 Side or Bottom Return 1 - 16 X 25 Side or Bottom Return 1 - 16 X 25 Side or Bottom Return 1 - 16 X 25 Side or Bottom Return¹ 2 - 16 X 25 Side or 1 - 20 X 25 Bottom Return 2 - 16 X 25 Side or 1 - 20 X 25 Bottom Return 2 - 16 X 25 Side or 1 - 24 X 24 Bottom Re
PRODUCT DESIGN Normal Heating Sequence 1. R and W thermostat contacts close, initiating a call for heat. 2. Integrated control module performs safety circuit checks. 3. The induced draft blower is energized causing pressure switch contacts to close. Induced draft blower remains energized for pre-purge period. 4. Ignitor warm up begins after pre-purge is completed. 5. Gas valve opens at end of ignitor warm up period, delivering gas to burners to establish flame. 6.
SYSTEM OPERATION (PCBBF145 Control Board) HEATING - Abnormal Operation The following presents the probable causes of questionable furnace operation and how to fix them. Look through the observation window in the blower access door and make a note of the number of flashes in sequence between pauses. Next, refer to the Troubleshooting Chart on the following pages for an interpretation of the LED signals and to the information in this section for a description of the problem. 1.
TROUBLESHOOTING Symptoms of Abnormal Operation • Furnace fails to operate. • Integrated control module diagnostic LED provides no signal. • LED is Steady On. Associated Associated 2 2 LED LEDCode Code NONE ON PCBBF145(S) CONTROL BOARD Fault Description(s) Fault Description(s) Possible Causes Possible Causes Corrective Action Cautions and Notes • Manual disconnect switch • No 115 volt power OFF, door switch open, or to furnace, or no 24 volt wires improperly 24 volt power to connected or loose.
TROUBLESHOOTING Symptoms of Abnormal Operation Associated LED Code2 Fault Description(s) • Primary limit circuit • Circulator blower runs is open. continuously. No furnace 4 operation. • Integrated control 4 FLASHES module diagnostic LED is flashing FOUR (4) flashes. PCBBF145(S) CONTROL BOARD Possible Causes • Faulty primary limit switch. • Insufficient conditioned air over the heat exchanger. Blocked filters, restrictive ductwork, improper circulator blower speed, or failed circulator blower.
POLARIZATION AND PHASING As more and more electronic's are introduced to the Heating Trade, Polarization of incoming power and phasing of primary to secondary voltage on transformers becomes more important. INCOMING POWER METER READS METER READS 120 VOLTS 0 VOLTS Polarization has been apparent in the Appliance industry since the introduction of the three prong plug, however, the Heating Industry does not use a plug for incoming power, but is hard wired.
MAINTENANCE Maintenance WARNING Improper filter maintenance is the most common cause of inadequate heating or cooling performance. Filters should be cleaned (permanent) or replaced (disposable) every two months or as required. It is the owner's responsibility to keep air filters clean. When replacing a filter, it must be replaced with a filter of the same type and size. HIGH VOLTAGE DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT.
MAINTENANCE BURNERS WARNING HIGH VOLTAGE ELECTRICAL COMPONENTS ARE CONTAINED IN BOTH COMPARTMENTS. TO AVOID ELECTRICAL SHOCK, INJURY OR DEATH, DO NOT REMOVE ANY INTERNAL COMPARTMENT COVERS OR ATTEMPT ANY ADJUSTMENT. CONTACT A QUALIFIED SERVICE AGENT AT ONCE IF AN ABNORMAL FLAME APPEARANCE SHOULD DEVELOP. Periodically during the heating season make a visual check of the burner flames. Turn the furnace on at the thermostat.
SERVICING 1 1 CUBIC FEET One GAS RATE -- CUBIC FEET PER HOUR Seconds for One Revolution 1/4 cu/ft 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 90 82 75 69 64 60 56 53 50 47 45 43 41 39 37 36 34 33 32 31 30 -28 -26 -- Size of Test Dial 1/2 1 2 cu/ft cu/ft cu/ft 5 cu/ft 180 164 150 138 129 120 113 106 100 95 90 86 82 78 75 72 69 67 64 62 60 -56 -53 -- 1800 1636 1500 1385 1286 1200 1125 1059 1000 947 900 857 818 783 750 720 692 667 643 621 600 581 563 545 529 514 36
SERVICING Power Failure Blown Fuse Loose Connection Shorted or Broken Wires No Low Voltage Faulty Thermostat Faulty Transformer Poor or High Resistance Ground Faulty Limit or Roll Out Switch Faulty Flame Sensor Faulty Ignition Control Gas Valve or Gas Supply Shut Off Faulty Induced Draft Blower Faulty Blower Motor (PSC & ECM) Broken or Shorted Ignitor Dirty Flame Sensor, Low UA Stuck Gas Valve Faulty Gas Valve Open Auxiliary Limit Improper Air Flow or Distribution Cycling on Limit Delayed Ignition • • •
SERVICING SERVICE NUMBERS S-1 CHECKING VOLTAGE.................................................................................................................................. 44 S-2 CHECKING WIRING...................................................................................................................................... 44 S-3A S-3B THERMOSTAT AND WIRING........................................................................................................................
SERVICING S-1 CHECKING VOLTAGE WARNING HIGH VOLTAGE DISCONNECT ALL POWER BEFORE SERVICING OR CHANGING ANY ELECTRICAL WIRING. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. 1. Remove the burner door to gain entry to the Junction Box. 2. Remove cover from the Junction Box and gain access to incoming power lines. With Power ON: CHECKING THERMOSTAT, WIRING AND ANTICIPATOR S-3A THERMOSTAT AND WIRING WARNING DISCONNECT ALL POWER BEFORE SERVICING.
SERVICING Cooling Anticipator The cooling anticipator is a small heater (resistor) in the thermostat. During the "OFF" cycle it heats the bimetal element helping the thermostat call for the next cooling cycle. This prevents the room temperature from rising too high before the system is restarted. A properly sized anticipator should maintain room temperature within 1 1/2 to 2 degrees. The anticipator is fixed in the subbase and is not to be replaced.
SERVICING If the total external static pressure exceeds the minimum or maximum allowable statics, check for closed dampers, registers, undersized and/or oversized poorly laid out duct work. SUPPLY AIR RETURN AIR Checking Static Pressure (80% Furnace Shown, 90% Similar) S-201 CHECKING TEMPERATURE RISE The more air (CFM) being delivered through a given furnace, the less the rise will be; so the less air (CFM) being delivered, the greater the rise.
SERVICING Style 1 drawing illustrates the Primary Limit used on the 80% furnaces. S-301 CHECKING AUXILIARY LIMIT CONTROL Style 1 BLOWER HOUSING WARNING HIGH VOLTAGE DISCONNECT ALL POWER BEFORE SERVICING OR CHANGING ANY ELECTRICAL WIRING. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. 1. Remove burner compartment door to gain access to the primary limit. AUXILIARY LIMIT CONTROL Auxiliary Limit Control Location 2.
SERVICING WARNING TO AVOID POSSIBLE FIRE, ONLY RESET THE AUXILIARY LIMIT CONTROL ONCE. IF IT SHOULD OPEN A SECOND TIME, A QUALIFIED SERVICER VOLT / OHM METER MUST DETERMINE WHY THE AUXILIARY LIMIT OPENED BEFORE RED RESET BUTTON S-302 CHECKING FLAME ROLLOUT CONTROL D N G RESETTING AGAIN.
SERVICING S-304 CHECKING GAS VALVE (Redundant) A combination redundant operator type gas valve which provides all manual and automatic control functions required for gas fired heating equipment is used. The valve provides control of main burner gas flow, pressure regulation, and 100 percent safety shut-off. WARNING Orifices should be treated with care in order to prevent damage. They should be removed and installed with a box-end wrench in order to prevent distortion.
SERVICING WARNING WARNING DISCONNECT ELECTRICAL POWER AND SHUT OFF GAS SUPPLY. HIGH VOLTAGE DISCONNECT ALL ELECTRICAL POWER AND SHUT OFF GAS SUPPLY BEFORE SERVICING OR INSTALLING THIS UNIT. 1. After turning off gas to furnace at the manual gas shutoff valve external to the furnace, remove burner compartment door to gain access to the gas valve. 2.
SERVICING 4. Measure gas manifold pressure with burners firing. Adjust manifold pressure using the table below. Manifold Gas Pressure Natural Gas 3.5" w.c. Propane Gas 10.0" w.c. The final manifold pressure must not vary more than ± 0.3 “ w.c. from the above specified pressures. Any necessary major changes in gas flow rate should be made by changing the size of the burner orifice. 5. White-Rodgers 36G22 Valves: a.
SERVICING S-308 CHECKING HOT SURFACE IGNITOR 120V Mini Igniter Single Stage - furnaces use a 120V carbide mini igniter for ignition. (part# 20165703) or a Silicon Nitride igniter (part# 0130F00008) The normal operating temperature is approximately 2550°F - 2876°F. S-310 CHECKING PRESSURE SWITCH The pressure switch a safety device to prevent the combustion cycle from occurring with inadequate venting caused by a restricted or blocked vent pipe on the 80% and 90% furnaces.
SERVICING WARNING S-311 HIGH ALTITUDE APPLICATION (USA) Check your furnace rating plate to determine its rated altitude (either 4500 or 5500 ft). Do not attempt to increase the firing rate by changing orifices or increasing the manifold pressure below 4500/5500 feet. This can causepoor combustion and equipment failure. High altitude installations above 4500/5500 feet may require both a pressure switch and an orifice change.
SERVICING COOL-H PARK PARK WARNING HIGH VOLTAGE DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. 1. Disconnect the orange flame sensor wire from the sensor . 2. Connect a micro-amp meter in series with this wire and the sensor terminal. 3. Place the unit into a heating cycle.
SERVICING A/V/GMES8 / GCES8 / VCES8 / ACES80 Pressure Switch Trip Points And Usage Chart ID Blower Set Point on Max Make Pressure Pressure Fall Pressure On Switch (PF) W.C. Rise W.C. Part # *MES800403A*BA / BB - 0.70 ± .06 - 0.85 B1370158 *MES800603A*BA / BB - 0.75 ± .07 - 0.92 B1370179 *MES800604B*BA / BB - 0.75 ± .07 - 0.92 B1370179 *MES800804B*BA / BB - 0.70 ± .06 - 0.85 B1370158 *MES800805C*BA / BB - 0.75 ± .07 - 0.92 B1370179 *MES801005C*BA / BB - 0.70 ± .06 - 0.
*MES80 / *CES80 SCHEMATICS HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. CIRCULATOR BLOWER INDUCER CIR PARK PARK NEU HEAT COOL IND R K2 RO2 RO1 TH K3 K1 ROLLOUT SWITCH XFMR HOT 24 VAC .
*MES80/*CES80 WIRING DIAGRAMS (with PCBBF145 Control Board) WARNING:DISCONNECT POWER BEFORE SERVICING.WIRING TO UNIT MUST BE PROPERLY POLARIZED AND GROUNDED.
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