INSTALLATION & OPEATIN INSTUTIONS for P SINLE PAKAE AS-ELETI HEATIN & OOLIN UNIT Affix this manual and Users Information Manual adjacent to the unit. US This orced Air entral Unit Design omplies ith equirements Embodied in The American National Standard / National Standard of anada Shown elow. ANSI Z.7 SA-. entral urnaces EONIZE THIS SMOL AS A SAET PEAUTION. ATTENTION INSTALLIN PESONNEL Prior to installation, thoroughly familiarize yourself with this Installation Manual. Observe all safety warnings. During installation or repair, caution is to be observed. It is your responsibility to install the product safely and to educate the customer on its safe use. These installation instructions cover the outdoor installation of single package gas electric heating and cooling units. See the Product Data ook applicable to your model* for information regarding accessories. *NOTE: Please contact your distributor or our website for the applicable product data book referred to in this manual. oodman Manufacturing ompany, L.P. IO-88 550 North Loop est, Suite 00, Houston, TX 7709 /05 www.goodmanmfg.com 005 oodman Manufacturing ompany, L.P.
INDEX eplacement Parts... ODEIN PATS... Safety Instructions... Unit location... ALL INSTALLATIONS:... OUND LEVEL INSTALLATIONS ONL:... OOTOP INSTALLATIONS ONL:... OO U INSTALLATIONS ONL:... 5 eneral Information... 5 TANSPOTATION DAMAE... igging Details... as piping... HIH ALTITUDE DEATE (U.S. INSTALLATIONS ONL)... PIPIN... AS PIPIN HEKS... 7 Propane as Installations... 7 TANKS AND PIPIN... 8 Electrical iring... 8 THEMOSTAT LOATION... 8 UNIT VOLTAE... 9 HEAT ANTIIPATO SETTIN... 9 irculating Air and ilters... 0 AILO ONVESION... 0 DUTOK... 0 ILTES... 0 Venting... 0 LUE HOOD INSTALLATION... ondensate Drain... ONDENSATE DAIN ONNETION... normal sequences of operation... HEATIN... OOLIN... AN ONL... Startup, Adjustments, and hecks... HEATIN STATUP... OOLIN STATUP... 5 Troubleshooting... 5 INITION ONTOL EO ODES... 5 ANOMAL OPEATION - HEATIN... 5 ANOMAL OPEATION - OOLIN... Maintenance... ILTE EPLAEMENT O LEANIN... AINET INISH MAINTENANE... LEAN OUTSIDE OIL (QUALIIED SEVIE ONL)... 7 ONDENSE, EVAPOATO, AND INDUED DAT MOTOS... 7 LAME SENSO (QUALIIED SEVIE ONL)... 7 LUE PASSAES (QUALIIED SEVIE ONL)... 7 LEANIN LUE PASSAES (QUALIIED SEVIE ONL)... 7 MAIN UNE LAME (QUALIIED SEVIE ONL)... 7 LEANIN UNES... 8 Accessories and unctional Parts... 8 SHEET METAL AESSOIES... 8 UNTIONAL PATS... 8 ENEAL INOMATION... 8 Ignition ontrol Diagnostic Indicator hart... 9 Heating Timing hart... 9 ooling Timing hart... 9 APPENDIX... 0 iring Diagrams... - Minimum learances... 7 ecommended ilter Sizes... 7
ODEIN PATS EPLAEMENT PATS hen reporting shortages or damages, or ordering repair parts, give the complete unit model and serial numbers as stamped on the unit s nameplate. eplacement parts for this appliance are available through your contractor or local distributor. or the location of your nearest distributor, consult the white business pages, the yellow page section of the local telephone book or contact: SEVIE PATS DEPATMENT OODMAN MANUATUIN OMPAN, L.P. 550 NOTH LOOP EST, SUITE 00 HOUSTON, TEXAS 7709 (7) 8 500 SAET INSTUTIONS TO THE INSTALLE efore installing this unit, please read this manual to familiarize yourself on the specific items which must be adhered to, including maximum external static pressure to unit, air temperature rise, minimum or maximum M and motor speed connections. TO THE ONE A warranty certificate is provided with the unit. ead the warranty carefully and note what is covered. Keep the warranty certificate in a safe place so you can find it when necessary. Keep this literature in a safe place for future reference. ANIN I THE INOMATION IN THESE INSTUTIONS IS NOT OLLOED EXATL, A IE O EXPLOSION MA ESULT AUSIN POPET DAMAE, PESONAL INJU O LOSS O LIE. DO NOT STOE O USE ASOLINE O OTHE LAMMAE VAPOS AND LIQUIDS IN THE VIINIT O THIS O AN OTHE APPLIANE. HAT TO DO I OU SMELL AS: DO NOT T TO LIHT AN APPLIANE. DO NOT TOUH AN ELETIAL SITH; DO NOT USE AN PHONE IN OU UILDIN. IMMEDIATEL ALL OU AS SUPPLIE OM A NEIHO S PHONE. OLLO THE AS SUPPLIE S INSTUTIONS. I OU ANNOT EAH OU AS SUPPLIE, ALL THE IE DEPATMENT. INSTALLATION AND SEVIE MUST E PEOMED A QUALIIED INSTALLE, SEVIE AEN O THE AS SUPPLIE. ANIN SHOULD OVEHEATIN OU O THE AS SUPPL AIL TO SHUT O, TUN ANIN THIS PODUT ONTAINS O PODUES A HEMIAL O HEMIA HIH MA AUSE SEIOUS ILLNESS O DEATH AND HIH AE KNON TO THE STATE O ALIONIA TO AUSE ANE, ITH DEETS O OTHE EPODUTIVE HAM. ANIN HEATIN UNIT SHOULD NOT E UTILIZED ITHOUT EASONAE, OUTINE, INSPETION, MAINTENANE AND SUPEVISION. I THE UILIDN IN HIH AN SUH DEVIE IS LOATED ILL E VAANT, AE SHOULD E TAKEN THAT SUH DEVIE IS OUTINEL INSPETED, MAINTAINED AND MONITOED. IN THE EVENT THAT THE UILDIN MAE EXPOSED TO EEZIN TEMPEATUES AND ILL E VAANT, ALL ATE-EAIN PIPES SHOULD E DAINED, THE UILDIN SHOULD E POPEL INTEIZED, AND THE ATE SOUE LOSED. IN THE EVENT THAT THE UILDIN MA E EXPOSED TO EEZIN TEMPEATUES AND ILL E VAANT, AN HDONI OIL UNITS SHOULD E DAINED AS ELL AND, IN SUH ASE, ALTENATIVE HEAT SOUES SHOULD E UTILIZED. ANIN TO AVOID POPET DAMAE, PESONAL INJU O DEATH, DO NOT USE THIS UNIT I AN PAT HAS EEN UNDE ATE. IMMEDIATEL ALL A QUALIIED SEVIE TEHNIIAN TO INSPET THE UNAE AND TO EPLAE AN PAT O THE ONTOL SSTEM AND AN AS ONTOL HAVIN EEN UNDE ATE. ANIN THIS UNIT MUST NOT E USED AS A "ONSTUTION HEATE" DUIN THE INISHIN PHASES O ONSTUTION ON A NE STUTUE. THIS TPE O USE MA ESULT IN PEMATUE AILUE O THE UNIT DUE TO EXTEMEL LO ETUN AI TEMPEATUES AND EXPOSUE TO OOSIVE O VE DIT ATMOSPHEES. HIH VOLTAE! ANIN DISONNET ALL POE EOE SEVIIN. MULTIPLE POE SOUES MA E PESENT. AILUE TO DO SO MA AUSE POPET DAMAE, PESONAL INJU O DEATH. ANIN TO PEVENT THE ISK O POPET DAMAE, PESONAL INJU, O DEATH, DO NOT STOE OMUSTIE MATEIA O USE ASOLINE O OTHE LAMMAE LIQUIDS O VAPOS IN THE VIINIT O THIS APPLIANE. O THE MANUAL AS SHUTO VALVE EXTENAL TO THE UNAE EOE TUNIN O THE ELETIAL SUPPL. ANIN DO NOT ONNET TO O USE AN DEVIE THAT IS NOT DESIN ETIIED OODMAN O USE ITH THIS UNIT. SEIOUS POPET DAMAE, PESONAL INJU, EDUED UNIT PEOMANE AND/O HAZADOUS ONDITIONS MA ESULT OM THE USE O SUH NON-APPOVED DEVIES. ANIN ONL INDIVIDUA MEETIN THE EQUIEMENTS O AN "ENT LEVEL TEHNIIAN" AS SPEIIED THE AI ONDITIONIN AND EIEATION INSTITUTE (AI) MA USE THIS INOMATION. ATTEMPTIN TO INSTALL O EPAI THIS UNIT ITHOUT SUH AKOUND MA ESULT IN PODUT DAMAE, PESONAL INJU, O DEATH.
AON MONOXIDE POISONIN HAZAD Special arning for Installation of urnaces or Air Handling Units in Enclosed Areas such as arages, Utility ooms or Parking Areas arbon monoxide producing devices (such as an automobile, space heater, gas water heater, etc.) should not be operated in enclosed areas such as unventilated garages, utility rooms or parking areas because of the danger of carbon monoxide (O) poisoning resulting from the exhaust emissions. If a furnace or air handler is installed in an enclosed area such as a garage, utility room or parking area and a carbon monoxide producing device is operated therein, there must be adequate, direct outside ventilation. This ventilation is necessary to avoid the danger of O poisoning which can occur if a carbon monoxide producing device continues to operate in the enclosed area. arbon monoxide emissions can be (re)circulated throughout the structure if the furnace or air handler is operating in any mode. O can cause serious illness including permanent brain damage or death. 059- To avoid possible illness or death of the building occupants, do NOT locate outside air intake device (economizer, manual fresh air intake, motorized fresh air intake) too close to an exhaust outlet, gas vent termination, or plumbing vent outlet. or specific distances required, consult local codes. Allow minimum clearances from the enclosure for fire protection, proper operation, and service access (see appendix). These clearances must be permanently maintained. The combustion air inlet and flue outlet hoods on the unit must never be obstructed. If used, do not allow the economizer/manual fresh air damper/ motorized fresh air damper to become blocked by snow or debris. In some climates or locations, it may be necessary to elevate the unit to avoid these problems. hen the unit is heating, the temperature of the return air entering the unit must be between 50 and 00. OUND LEVEL INSTALLATIONS ONL: hen the unit is installed on the ground adjacent to the building, a level concrete (or equal) base is recommended. Prepare a base that is larger than the package unit footprint and a minimum of thick. The base should also be located where no runoff of water from higher ground can collect in the unit. UNIT LOATION ANIN TO PEVENT POSSIE EQUIPMENT DAMAE, POPET DAMAE, PESONAL INJU O DEATH, THE OLLOIN ULLET POINTS MUST E OSEVED HEN INSTALLIN THE UNIT. IMPOTANT NOTE: emove wood shipping rails prior to installation of the unit. ALL INSTALLATIONS: or proper flame pattern within the heat exchanger and proper condensate drainage, the unit must be mounted level. The flue outlet hood must be at least inches from any opening through which flue gases could enter a building, and at least three feet above any forced air inlet located within ten feet. The economizer/manual fresh air intake/ motorized fresh air intake and combustion air inlet mounted on the unit are not affected by this restriction. To avoid possible corrosion of the heat exchanger, do not locate the unit in an area where the outdoor air (i.e. combustion air for the unit) will be frequently contaminated by compounds containing chlorine or fluorine. ommon sources of such compounds include swimming pool chemicals and chlorine bleaches, paint stripper, adhesives, paints, varnishes, sealers, waxes (which are not yet dried) and solvents used during construction and remodeling. Various commercial and industrial processes may also be sources of chlorine/fluorine compounds. Outside Slab Installation OOTOP INSTALLATIONS ONL: To avoid possible property damage or personal injury, the roof must have sufficient structural strength to carry the weight of the unit(s) and snow or water loads as required by local codes. onsult a structural engineer to determine the weight capabilities of the roof.
ooftop Installation The unit may be installed directly on wood floors or on lass A, lass, or lass roof covering material. To avoid possible personal injury, a safe, flat surface for service personnel should be provided. OO U INSTALLATIONS ONL: Sufficient structural support must be determined prior to locating and mounting the curb and package unit. Ductwork must be constructed using industry guidelines. The duct work must be placed into the roof curb before mounting the package unit. urb insulation, cant strips, flashing and general roofing material are furnished by the contractor. oof urb Installation ENEAL INOMATION ANIN TO PEVENT POPET DAMAE, PESONAL INJU O DEATH, DUE TO IE, EXPLOSIONS, SMOKE, SOOT, ONDENSATION, ELETI SHOK O AON MONOXIDE, THIS UNIT MUST E POPEL INSTALLED, EPAIED, OPEATED, AND MAINTAINED. This unit is approved for outdoor installation ONL. To assure that your unit operates safely and efficiently, it must be installed, operated, and maintained in accordance with these installation and operating instructions, all local building codes and ordinances, or in their absence, with the latest edition of the National uel as ode NPA5/ANSI Z. and National Standard of anada AN/SA 9 Installation odes. The heating and cooling capacities of the unit should be greater than or equal to the design heating and cooling loads of the area to be conditioned. The loads should be calculated by an approved method or in accordance with A.S.H..A.E. uide or Manual J - Load alculations published by the Air onditioning ontractors of America. Obtain from: American National Standards Institute 0 roadway New ork, N 008 5
TANSPOTATION DAMAE heck the carton upon arrival for external damage. If damage is found, a request for inspection by carrier agent should be made in writing immediately. arefully inspect the unit for damage including damage to the cabinetry. Any bolts or screws which may have loosened in transit must be re-tightened. In the event of damage, the receiver should:. Make notation on delivery receipt of any visible damage to shipment or container.. Notify carrier promptly and request an inspection.. In case of concealed damage, carrier should be notified as soon as possible-preferably within 5 days.. ile the claim with the following supporting documents: a. Original ill of Lading, certified copy, or indemnity bond. b. Original paid freight bill or indemnity in lieu thereof. c. Original invoice or certified copy thereof, showing trade and other discounts or reductions. d. opy of the inspection report issued by carrier representative at the time damage is reported to the carrier. The carrier is responsible for making prompt inspection of damage and for a thorough investigation of each claim. The distributor or manufacturer will not accept claims from dealers for transportation damage. NOTE: hen inspecting the unit for transportation damage, remove all packaging materials. ecycle or dispose of the packaging material according to local codes. IIN DETAI ANIN TO PEVENT POPET DAMAE, THE UNIT SHOULD EMAIN IN AN UPIHT POSITION DUIN ALL IIN AND MOVIN OPEATIONS. TO AILITATE LITIN AND MOVIN HEN A ANE IS USED, PLAE THE UNIT IN AN ADEQUATE AE SLIN. Important: If using bottom discharge with roof curb, ductwork should be attached to the curb prior to installing the unit. Ductwork dimensions are shown in roof curb installation instructions. efer to the oof urb Installation Instructions for proper curb installation. urbing must be installed in compliance with the National oofing ontractors Association Manual. Lower unit carefully onto roof mounting curb. hile rigging unit, center of gravity will cause condenser end to be lower than supply air end. AS PIPIN IMPOTANT NOTE: This unit is factory set to operate on natural gas at the altitudes shown on the rating plate. ANIN TO AVOID POPET DAMAE, PESONAL INJU O DEATH HEN EITHE USIN POPANE AS ALONE O AT HIHE ALTITUDES, OTAIN AND INSTALL THE POPE ONVESION KIT(S). AILUE TO DO SO AN ESULT IN UNSATISATO OPEATION AND/O EQUIPMENT DAMAE. HIH ALTITUDE KITS AE O U.S. INSTALLATIONS ONL AND AE NOT APPOVED O USE IN ANADA. The rating plate is stamped with the model number, type of gas and gas input rating. Make sure the unit is equipped to operate on the type of gas available. onversion to LP gas is permitted with the use of the factory authorized conversion kit LPT-00A. Inlet as Pressure Natural Min. 5.0".., Max. 0.0".. Propane Min..0".., Max..0".. Inlet as Pressure Must Not Exceed the Maximum Value Shown in Table Above. The minimum supply pressure should not vary from that shown in the table above because this could prevent the unit from having dependable ignition. In addition, gas input to the burners must not exceed the rated input shown on the rating plate. Overfiring of the unit could result in premature heat exchanger failure. HIH ALTITUDE DEATE (U.S. INSTALLATIONS ONL) IMPOTANT NOTE: The gas/electric units naturally derate with altitude. Do not attempt to increase the firing rate by changing orifices or increasing the manifold pressure. This can cause poor combustion and equipment failure. At all altitudes, the manifold pressure must be within 0. inches.. of that listed on the nameplate for the fuel used. At all altitudes and with either fuel, the air temperature rise must be within the range listed on the unit nameplate. efer to the Installation Manual provided with the LP kit for conversion from natural gas to propane gas and for altitude adjustments. PIPIN IMPOTANT NOTE: To avoid possible unsatisfactory operation or equipment damage due to under firing of equipment, do not undersize the natural/propane gas piping from the meter/tank to the unit. hen sizing a trunk line, include all appliances on that line that could be operated simultaneously. The rating plate is stamped with the model number, type of gas and gas input rating. Make sure the unit is equipped to operate on the type of gas available. The gas line installation must comply with local codes, or in the absence of local codes, with the latest edition of the National uel as ode NPA 5/ANSI Z.. Natural as onnection Natural as apacity of Pipe in ubic eet of as Per Hour (H) Length of Nominal lack Pipe Size (inches) Pipe in eet / / / / 0 78 50 050 00 0 9 90 50 70 00 0 7 5 85 590 980 0 0 5 500 70 50 5 5 5 0 70 0 50 05 95 00 0 70 9 80 70 50 80 90 70 50 50 90 0 8 0 0 90 00 8 79 50 05 0 Pressure =.50 I or less and Pressure Drop of 0.".. (ased on 0.0 Specific ravity as) igging H = TUH urnace Input Heating Value of as (TU/ubic oot)
efer to the Proper Piping Practice drawing for the general layout at the unit. The following rules apply:. Use black iron pipe and fittings for the supply piping. The use of a flex connector and/or copper piping is permitted as long as it is in agreement with local codes.. Use pipe joint compound on male threads only. Pipe joint compound must be resistant to the action of the fuel used.. Use ground joint unions.. Install a drip leg to trap dirt and moisture before it can enter the gas valve. The drip leg must be a minimum of three inches long. 5. Use two pipe wrenches when making connection to the gas valve to keep it from turning.. Install a manual shut-off valve in a convenient location (within six feet of unit) between the meter and the unit. 7. Tighten all joints securely. 8. The unit must be connected to the building piping by one of the following methods: igid metallic pipe and fittings Semirigid metallic tubing and metallic fittings (Aluminum alloy tubing must not be used in exterior locations) Listed gas appliance connectors used in accordance with the terms of their listing that are completely in the same room as the equipment In the prior two methods above the connector or tubing must be protected from physical and thermal damage. Aluminum alloy tubing and connectors must be coated to protect against external corrosion when in contact with masonry, plaster or insulation or are subject to repeated wettings by liquids (water - not rain water, detergents or sewage) AS PIPIN HEKS AUTION TO PEVENT POPET DAMAE O PESONAL INJU DUE TO IE, THE OLLOIN INSTUTIONS MUST E PEOMED EADIN AS ONNETIONS AND PESSUE TESTIN: THE UNIT AND ITS AS ONNETIONS MUST E LEAK TESTED EOE PLAIN IN OPEATION. EAUSE O THE DANE O EXPLOSION O IE, NEVE USE A MATH O OPEN LAME TO TEST O LEAKS. NEVE EXEED SPEIIED PESSUES O TESTIN. HIHE PESSUE MA DAMAE AS VALVE AND AUSE OVEIIN HIH MA ESULT IN PEMATUE HEAT EXHANE AILUE. THIS UNIT AND ITS SHUT-O VALVE MUST E DISONNETED OM THE AS SUPPL DUIN AN PESSUE TESTIN O THAT SSTEM AT TEST PESSUES IN EXESS O / I (.8 KPA). THIS UNIT MUST E ISOLATED OM THE AS SUPPL SSTEM LOSIN ITS MANUAL SHUT-O VALVE DUIN AN PESSUE TESTIN O THE AS SUPPL PIPIN SSTEM AT TEST PESSUES EQUAL TO O LESS THAN / I (.8 KPA). ANIN TO AVOID POPET DAMAE O PESONAL INJU, E SUE THEE IS NO OPEN LAME IN THE VIINIT DUIN AI EEDIN. There will be air in the gas supply line after testing for leaks on a new installation. Therefore, the air must be bled from the line by loosening the ground joint union until pure gas is expelled. Tighten union and wait for five minutes until all gas has been dissipated in the air. e certain there is no open flame in the vicinity during air bleeding procedure. The unit is placed in operation by closing the main electrical disconnect switch for the unit. POPANE AS INSTALLATIONS MANUAL SHUT-O VALVE ANIN OMMET Proper Piping Practice DIP LE OUND JOINT UNION (INSTALLED AHEAD O AS VALVE) NOTE: The unit gas supply entrance is factory sealed with plugs. Keep plugs in place until gas supply is ready to be installed. Once ready, replace the plugs with the supplied grommets and install gas supply line. TO AVOID POPET DAMAE, PESONAL INJU O DEATH DUE TO IE O EXPLOSION AUSED A POPANE AS LEAK, INSTALL A AS DETETIN ANIN DEVIE. SINE UST AN EDUE THE LEVEL O ODOANT IN POPANE AS, A AS DETETIN ANIN DEVIE IS THE ONL ELIAE A TO DETET A POPANE AS LEAK. ONTAT A LOAL POPANE AS SUPPLIE AOUT INSTALLIN A AS DETETIN ANIN DEVIE. IMPOTANT NOTE: Propane gas conversion kits must be installed to convert units to propane gas. All propane gas equipment must conform to the safety standards of the National oard of ire Underwriters (See NU Manual 58). or satisfactory operation, propane gas supply pressure must be within 9.7-0. inches.. at the manifold with all gas appliances in operation. Maintaining proper gas pressure depends on three main factors:. Vaporization rate, which depends on (a) temperature of the liquid, and (b) wetted surface area of the container or containers.. Proper pressure regulation.. Pressure drop in lines between regulators, and between second stage regulator and the appliance. Pipe size required will depend on length of pipe run and total load of all appliances. 7
7 0 0 7 8 9 DI TANKS AND PIPIN omplete information regarding tank sizing for vaporization, recommended regulator settings and pipe sizing is available from most regulator manufacturers and propane gas suppliers. Since propane gas will quickly dissolve white lead or most standard commercial compounds, special pipe dope must be used. Shellac base compounds resistant to the actions of liquefied petroleum gases such as asolac, Stalactic, lyde s or John rane are satisfactory. See below for typical propane gas piping. ANIN TO PEVENT POPET DAMAE O SEIOUS PESONAL INJU DUE TO IE O EXPLOSION AUSED A POPANE AS LEAK, INSTALL A AS DETETIN ANIN DEVIE. I THE POPANE AS UNIT IS INSTALLED IN AN EXAVATED AEA O A ONINED SPAE, A ANIN DEVIE IS EQUIED DUE TO: POPANE AS IS HEAVIE THAN AI AND AN LEAKIN AS AN SETTLE IN AN LO AEAS O ONINED SPAES. POPANE AS ODOANT MA ADE, MAKIN THE AS UNDETETAE EXEPT ITH A ANIN DEVIE. irst Stage egulator 5 to 5 I (0 I Max.) ontinuous ".. ELETIAL IIN 00 I Maximum Second Stage egulator Typical Propane as Piping Sizing etween irst and Second Stage egulator Maximum Propane apacities listed are based on I Pressure Drop at 0 I Setting. apacities in,000 TU/H PIPE O TUIN LENTH, EET TUIN SIZE, O.D., TPE L /8" /" 5/8" /" 7/8" /" /" 0 09 700,0,05,9,8,85 0 5 599,5,887,90,577,98 50 5 5 988,7,57,98,9 0 8 89,55,,7,9 70 9 8,9,,5,7 80 8 77,97,99,08,7 90 7 8 79,7,87,07,7 00 5 79,9,79 9,009 50 0 9 5 9, 77, 00 5 7 790, 0,8 50 90 700,078 585, 00 89 0 78 97 50,09 50 8 85 5 58 898 88,00 00 7 7 5 8 5 99 To convert to apacities at 5 I Settings -- Multiply by.0 To convert to apacities at 5 I Settings -- Multiply by 0.879 NOMINAL PIPE SIZE, SHEDULE 0 THEMOSTAT LOATION Mount the thermostat approximately five feet above the floor, in an area that has an inside, vibration-free wall and has good air circulation. Movement of air must not be obstructed by furniture, door, draperies, etc. The thermostat must not be mounted where it will be affected by drafts, hot or cold water pipes or air ducts in walls, radiant heat from fireplace, lamps, the sun, television, etc. onsult the Instruction Sheet packaged with thermostat for mounting instructions. All units have one stage of heating and one stage of mechanical cooling. Units which will have economizers may use thermostats with one or two stages of cooling. *P0***A ONL: These models have two stages of mechanical cooling. A -stage heat, -stage cooling thermostat is recommended for these models. ANIN TO AVOID INJU, ELETIAL SHOK O DEATH, DISONNET ELETIAL POE EOE SEVIIN O HANIN AN ELETIAL IIN. The units are designed for operation on 0 hertz current and at voltages as shown on the rating plate. All internal wiring in the unit is complete. It is necessary to bring in the power supply to the contactor as shown on the unit wiring diagram which is supplied with each unit. volt wiring must be connected between the unit control panel and the room thermostat. Sizing etween Single or Second Stage egulator and Appliance* Maximum Propane apacities Listed are ased on /".. Pressure Drop at ".. Setting. apacities in,000 TU/H PIPE O TUIN LENTH, EET TUIN SIZE, O.D., TPE L NOMINAL PIPE SIZE, SHEDULE 0 /8" /" 5/8" /" 7/8" /" /" " -/" -/" 0 9 0 0 8 59 9 08,,5,55 0 7 9 8 00 8 788,7, 8099-8 08-8-00A K K OOL UNUSED HEAT 0 7 9 9,99,9 0 5 97 5 7 8 5,,5 MODEL 08-00 K 50 0 8 55 80 985,7 0 9 78 0 0 89,7 80 7 7 9 98 7 7, 00 59 00 5 8 75 0 77,0 5 8 5 89 7 7 55 9 00 899 LO VOLTAE ONNETO ANSI Z.0 AUTOMATI INITION SSTEM VA 50/0Hz 00mA MAX. K 8 9 0 9 7 USE AMP MAX 5 5 P EON 0 50 8 80 7 5 5 85 00 0 9 0 58 0 7 5 97 50 9 9 9 5 07 0 8 EAK O TO STAE OMPESSO T T P P 5 50 SPEED-UP 00 8 8 55 85 97 8 7 50 50 7 0 5 78 89 7 55 00 7 5 8 7 7 0 8 5 0 79 Low Voltage iring *DATA IN AODANE ITH NPA PAMPHLET NO. 5 Table - Propane as Pipe Sizing 8
7 P 0 0 7 8 9 DI 08-8-00A Note:Junction box location shown is optional and is for illustration purposes only. OOL 8099-8 K K UNUSED HEAT JUNTION OX MODEL 08-00 K / LO VOLTAE ONNETO ANSI Z.0 AUTOMATI INITION SSTEM VA 50/0Hz 00mA MAX. K 0 7 8 9 9 USE AMP MAX 5 5 EON 0 EAK O TO STAE OMPESSO T P T P 5 50 SPEED-UP Electrical Power Directly To Junction ox Low Voltage iring-*p0***a Only efer to the unit wiring diagram for electrical connections. hen installed, the unit must be electrically grounded in accordance with local codes or in the absence of local codes, with the National Electrical ode, ANSI/NPA No. 70, and/or the SA. Electrical ode. Ensure low voltage connections are waterproof. ANIN TO AVOID THE ISK O ELETIAL SHOK, IIN TO THE UNIT MUST E POLAIZED AND OUNDED. AUTION TO AVOID POPET DAMAE O PESONAL INJU DUE TO IE, USE ONL OPPE ONDUTOS. AUTION TO PEVENT IMPOPE AND DANEOUS OPEATION DUE TO IIN EOS, LAEL ALL IES PIO TO DISONNETION HEN SEVIIN ONTO. VEI POPE OPEATION ATE SEVIIN. or unit protection, use a fuse or HA circuit breaker that is in excess of the circuit ampacity, but less than or equal to the maximum overcurrent protection device. DO NOT EXEED THE MAXIMUM OVEUENT DEVIE SIZE SHON ON UNIT DATA PLATE. All line voltage connections must be made through weatherproof fittings. All exterior power supply and ground wiring must be in approved weatherproof conduit. Low voltage wiring from the unit control panel to the thermostat requires coded cable. See below for ground level and rooftop wiring. Electrical Power outed Through ottom of Unit UNIT VOLTAE Typical Electrical iring Unit Voltage The unit transformer is factory connected for 0V operation. If the unit is to operate on 08V, reconnect the transformer primary lead as shown on the unit wiring diagram. The induced draft blower on some models is equipped with a 0V lead (red) and a 08V lead (black). If equipped, connect the induced draft blower 08V lead (black) in place of the 0V lead (red). Tape the unused 0V lead. HEAT ANTIIPATO SETTIN The heat anticipator is to be set by measuring the load (amperage) at the circuit. ollow the instructions provided by the thermostat for more details. rom Unit 9 Typical Thermostat and Unit V iring Hookup
Duct over Installation rom Unit / / Typical -Stage ool Thermostat and Unit V iring Hookup *P0***A Only IULATIN AI AND ILTES AILO ONVESION Units can easily be converted from horizontal to downdischarge airflow delivery. In down-discharge or high static installations, the installer should measure the total external static and review the blower performance charts before performing the installation. In some installations it will be necessary to change the blower speed to provide proper air flow. Horizontal Air low emove supply and return duct covers which are attached to the unit as shown below. Down Discharge Applications ut insulation around bottom openings and remove panels from the bottom of the unit, saving the screws holding the panels in place. DUTOK Duct systems and register sizes must be properly designed for the..m. and external static pressure rating of the unit. Ductwork should be designed in accordance with the recommended methods of Air onditioning ontractors of America Manual D (esidential) or Manual Q (ommercial). All ductwork exposed to the outdoors must include a weatherproof barrier and adequate insulation. A duct system should be installed in accordance with Standards of the National oard of ire Underwriters for the Installation of Air onditioning, arm Air Heating and Ventilating Systems. Pamphlets No. 90A and 90. The supply duct from the unit through a wall may be installed without clearance. However, minimum unit clearances as shown in the appendix must be maintained. The supply duct should be provided with an access panel large enough to inspect the air chamber downstream of the heat exchanger. A cover should be tightly attached to prevent air leaks. or duct flange dimensions on the unit refer to the Unit Dimension illustration in the appendix. or down-discharge applications, the ductwork should be attached to the roof curb prior to installing the unit. Ductwork dimensions are shown in the roof curb installation manual. If desired, supply and return duct connections to the unit may be made with flexible connections to reduce possible unit operating sound transmission. ILTES AUTION TO PEVENT POPET DAMAE DUE TO IE AND LOSS O EQUIPMENT EIIEN O EQUIPMENT DAMAE DUE TO DUST AND LINT UILD UP ON INTENAL PATS, NEVE OPEATE UNIT ITHOUT AN AI ILTE INSTALLED IN THE ETUN AI SSTEM. Supply emove these covers for horizontal duct applications eturn Supply eturn Even though a return air filter is not supplied with this unit, there must be a means of filtering all return air. The *P(A,A), *P, *P8, and *P0 models are provided with internal filter racks for down-discharge applications. All units may be externally filtered. efer to the unit filter size chart in the appendix for filter size information. ilters installed external to the unit should be sized in accordance with their manufacturer recommendations. A throwaway filter must be sized for a maximum face velocity of 00 feet per minute. ilter Installation Important: hen installing a filter, the air flow arrows on the filter must point toward the circulator blower. VENTIN emove these panels for downflow duct applications NOTE: Venting is self-contained. Do not modify or block. 0
LUE HOOD INSTALLATION Install the flue hood and bug screen prior to operation of the unit. To install the flue hood cover and bug screen:. emove the flue hood and bug screen from inside the heat exchanger compartment.. Slide the bug screen over the flanges of the flue hood and attach the flue hood and screen to the unit with the sheet metal screws provided. lue Hood and ug Screen Installation ONDENSATE DAIN LUE HOOD U SEEN ONDENSATE DAIN ONNETION A / NPT drain connection is supplied for condensate piping. An external trap must be installed for proper condensate drainage. DAIN ONNETION UNIT " MINIMUM second on delay period. EM motor will energize at heating speed after the 5 second delay regardless of the status of the main burner flame.. The unit delivers heat to the conditioned space until the thermostat is satisfied. 5. The gas valve deenergizes. The induced draft blower continues operation for a 9-second post-purge.. Ignition control begins timing the HEAT AN O delay. There is an adjustable HEAT AN O delay of approximately 0/5/50 seconds (factory set at 50). After the HEAT AN O delay time has elapsed, the blower will deenergize. This allows any additional heat in the heat exchanger to be transferred to the conditioned space. *P(8,0)***A ONL: HEAT AN O delay is fixed at 80 seconds. Airflow level is 50% of nominal heating airflow. OOLIN. Thermostat calls for cooling. The compressor and outdoor fan are energized.. Approximately seven seconds later, the indoor fan starts.. The unit will deliver cooling to the conditioned space until the thermostat is satisfied.. The compressor and outdoor fan will be deenergized when the thermostat opens. 5. The indoor fan continues to run for approximately 0 seconds after the thermostat is satisfied. This allows additional cooling from the indoor coil to be transferred to the conditioned space. Then, the indoor fan stops. *P8***A ONL:. Thermostat calls for cooling. Outdoor fan and compressor are energized. EM motor is energized almost immediately for 0 seconds at 50% of the nominal airflow. Airflow then increases to nominal airflow.. The unit will deliver cooling to the conditioned space until thermostat is statisfied.. The outdoor fan and compressor will be de-energized when thermostat opens.. EM motor continues to operate for approximately 0 seconds at 50% of nominal airflow after thermostat opens. LEXIE TUIN-HOSE O PIPE A POSITIVE LIQUID SEAL IS EQUIED Drain onnection " MINIMUM NOMAL SEQUENES O OPEATION HEATIN This unit is equipped with an ignition control that automatically lights the main burner. DO NOT attempt to light the main burners by any other method.. Thermostat calls for heat. The induced draft blower energizes for a 5-second pre-purge.. The spark igniter and gas valve energizes for 7 seconds. NOTE: The igniter produces a very intense electrical spark that ignites the gas.. The 0-second HEAT AN ON delay time begins. *P(8,0)***A ONL: Heat on delay begins when thermostat calls for heat. EM motor is energized approximately 5 seconds later. NOTE: EM motor may operate at approximately 00 M or less during the 5 *P0***A ONL:. Thermostat calls for low stage cooling. Outdoor fan and low stage compressor are energized. EM motor is energized almost immediately for 0 seconds at 50% of the nominal low stage airflow. Airflow then increases to nominal low stage airflow. If thermostat calls for high stage cooling, outdoor fan and low and high stage compressor is energized. EM motor is energized almost immediately for 0 seconds at 50% of the nominal high stage airflow. Airflow then increases to nominal high stage airflow.. The unit will deliver cooling to the conditioned space until thermostat is satisfied.. The outdoor fan and low stage compressor (or low and high stage compressor) will be de-energized when thermostat opens.. EM motor continues to operate for approximately 0 seconds at 50% of nominal low stage airflow (or high stage airflow if thermostat call was for high stage cooling) after thermostat opens. NOTE: A 80-second anti-short cycle is integral to the control and prevents recycling of the compressor.
AN ONL. Thermostat calls for AN ONL by energizing.. Approximately seven seconds later, the indoor fan starts.. The indoor fan continues to run for approximately 0 seconds after is de-energized. *P(8,0)***A ONL:. Thermostat calls for AN ONL by energizing.. EM motor is energized almost immediately at approximately 0% or 0% of the nominal high stage cooling airflow, depending on setting (see lower Speed Adjustment section).. EM is de-energized almost immediately after is deenergized. STATUP, ADJUSTMENTS, AND HEKS Secondary Limit ontrol The secondary limit control is located on the top of the blower scroll assembly. This control opens when elevated temperatures are sensed. Elevated temperatures at the control are normally caused by blower failure. The reason for the opening should be determined and repaired prior to resetting. If the power to the unit is interrupted during the heating cycle, it may cause the secondary limit to trip. Once the blower compartment temperature drops below the limit reset temperature, the limit will automatically reset. Secondary ontrol Limit HEATIN STATUP This unit is equipped with an electronic ignition device to automatically light the main burners. It also has a power vent blower to exhaust combustion products. On new installations, or if a major component has been replaced, the operation of the unit must be checked. heck unit operation as outlined in the following instructions. If any sparking, odors, or unusual sounds are encountered, shut off electrical power and recheck for wiring errors, or obstructions in or near the blower motors. Duct covers must be removed before operating unit. Heat Anticipator Setting Set the heat anticipator on the room thermostat to 0. amps to obtain the proper number of heating cycles per hour and to prevent the room temperature from overshooting the room thermostat setting. ollout Protection ontrol The rollout protection device opens, cutting power to the gas valve, if the flames from the burners are not properly drawn into the heat exchanger. The rollout protection device is located on the burner bracket. The reason for elevated temperatures at the control should be determined and repaired prior to resetting this manual reset control. ANIN TO AVOID POPET DAMAE, PESONAL INJU O DEATH DUE TO IE O EXPLOSION, A QUALIIED SEVIE MUST INVESTIATE THE EASON O THE OLLOUT POTETION DEVIE TO OPEN EOE MANUALL ESETTIN THE OLLOUT POTETION DEVIE. ollout Protection ack of Unit Secondary Limit ontrol Pre-Operation hecks. lose the manual gas valve external to the unit.. Turn off the electrical power supply to the unit.. Set the room thermostat to its lowest possible setting.. emove the heat exchanger door on the side of the unit by removing screws. 5. This unit is equipped with an ignition device which automatically lights the main burner. DO NOT try to light burner by any other method.. Move the gas control valve switch to the O position. Do not force. 7. ait five minutes to clear out any gas. 8. Smell for gas, including near the ground. This is important because some types of gas are heavier than air. If you have waited five minutes and you do smell gas, immediately follow the warnings on page of this manual. If having waited for five minutes and no gas smell is noted, move the gas control valve switch to the ON position. 9. eplace the heat exchanger door on the side of the unit. 0. Open the manual gas valve external to the unit.. Turn on the electrical power supply to the unit.. Set the thermostat to desired setting. as Valve On/Off Selector Switch INLET OUTLET hite-odgers Model ollout Protection on urner racket
INLET as Valve On/Off Selector Switch hite-odgers OUTLET as Supply And Manifold heck as supply pressure and manifold pressure with the burners operating must be as specified on the rating plate. as Inlet Pressure heck as inlet pressure must be checked and adjusted in accordance to the type of fuel being consumed. ith Power And as Off:. onnect a water manometer or adequate gauge to the inlet pressure tap of the gas valve. Inlet gas pressure can also be measured by removing the cap from the dripleg and installing a predrilled cap with a hose fitting. ith Power And as On:. Put unit into heating cycle and turn on all other gas consuming appliances. Inlet as Pressure Natural Min. 5.0".., Max. 0.0".. Propane Min..0".., Max..0".. NOTE: Inlet as Pressure Must Not Exceed the Maximum Value Shown. If operating pressures differ from above, make necessary pressure regulator adjustments, check piping size, etc., and/ or consult with local utility. as Line as Shutoff Valve Drip Leg ap ith itting as Line To urnace Manometer Hose Open To Atmosphere Manometer Measuring Inlet as Pressure Alternate Method Manifold Pressure heck The gas valve has a tapped opening to facilitate measurement of the manifold pressure. A U Tube manometer having a scale range from 0 to inches of water should be used for this measurement. The manifold pressure must be measured with the burners operating. To adjust the pressure regulator, remove the adjustment screw or cover on the gas valve. Turn out (counterclockwise) to decrease pressure, turn in (clockwise) to increase pressure. Only small variations in gas flow should be made by means of the pressure regulator adjustment. In no case should the final manifold pressure vary more than plus or minus 0. inches water column from the specified nominal pressure. Any major changes in flow should be made by changing the size of the burner orifices. The measured input rate to the furnace must not exceed the rating specified on the unit rating plate. or natural gas, the manifold pressure must be between. and.8 inches water column (.5 nominal). or propane gas, the manifold pressure must be between 9.7 and 0. inches water column (0.0 nominal). as Input (Natural as Only) heck To measure the gas input use a gas meter and proceed as follows:. Turn off gas supply to all other appliances except the unit.. ith the unit operating, time the smallest dial on the meter for one complete revolution. If this is a cubic foot dial, divide the seconds by ; if it is a cubic foot dial, use the seconds as is. This gives the seconds per cubic foot of gas being delivered to the unit.. INT=AS HT VALUE x 00 / SE. PE UI OOT Example: Natural gas with a heating value of 000 TU per cubic foot and seconds per cubic foot as determined by Step, then: Input = 000 x 00 / = 0,000 TU per Hour. NOTE: TU content of the gas should be obtained from the gas supplier. This measured input must not be greater than shown on the unit rating plate.. elight all other appliances turned off in step. e sure all pilot burners are operating. Main urner lame heck lames should be stable, soft and blue (dust may cause orange tips but they must not be yellow) and extending directly outward from the burner without curling, floating or lifting off. Temperature ise heck heck the temperature rise through the unit by placing thermometers in supply and return air registers as close to the unit as possible. Thermometers must not be able to sample temperature directly from the unit heat exchangers, or false readings could be obtained.. All registers must be open; all duct dampers must be in their final (fully or partially open) position and the unit operated for 5 minutes before taking readings.. The temperature rise must be within the range specified on the rating plate. NOTE: Air temperature rise is the temperature difference between supply and return air. ith a properly designed system, the proper amount of temperature rise will normally be obtained when the unit is operated at rated input with the recommended blower speed. If the correct amount of temperature rise is not obtained, it may be necessary to change the blower speed. A higher blower speed will lower the temperature rise. A slower blower speed will increase the temperature rise. NOTE: lower speed MUST be set to give the correct air temperature rise through the unit as marked on the rating plate.
External Static Pressure heck The total external static pressure must be checked on this unit to determine if the airflow is proper. lower Speed Adjustments ANIN TO AVOID PESONAL INJU O DEATH DUE TO ELETI SHOK, EMOVE ELETIAL POE OM THE UNIT EOE HANIN SPEED TA ON THE OE MOTO. efer to the wiring diagram in the appendix to verify speed tap settings. lower speeds are to be changed at the ignition control board. oth heat speed and cool speed terminals are supplied on the board along with two unused motor lead terminals. *P(8, 0)***, A, A models are equipped with X- motors. X- motors are constant torque motors with very low power consumption. This motor is energized by V. Adjust the M for the unit by changing the V low voltage leads to the speed terminal block on the motor. Heating-hite Lead ooling-ellow Lead T - Low Speed T - Low Speed T - Medium Speed T5 - High Speed T - High Speed *P(8, 0)***A models are equipped with E EM motors. These motors offer greater airflow flexibility as well as dehumidification. The airflow delivery for these models can be adjusted by changing the position of dip switches on a low voltage terminal board. The figure below shows the dipswitch layout on the low voltage terminal board as well as the function of each set of switches. The HEAT function (switches and ) provides airflow adjustment for heating airflow. The OOL adjustment function (switches 5 and ) provides airflow adjustments for cooling airflow. The ADJUST function (switches 7 and 8) will adjust the heating AND cooling airflow +0% or - 5%. The DELA function (switches and ) is not field adjustable. Switch can adjust an Only M, 0% O, 0% ON. O N To adjust the HEAT, OOL or ADJUST functions, simply change the ON/O position of the appropriate dipswitches. The table below shows the ON/O combinations for the various switches and the corresponding A,,, or D taps. efer to the Product Data ook applicable to your model for airflow tables and temperature rise. The Dipswitch Position table below shows the factory dipswitch settings for each model. The M table below shows the nominal heating and cooling M for each model. HEAT DELA OOL ADJUST 5 7 8 A O O O O O O O O ON O ON O ON O ON O O ON O ON O ON O ON D ON ON ON ON ON ON ON* ON* actory Set; not field adjustable * Tap D has no effect on airflow Dipswitch Settings and orresponding Tap Model DIP SITH POSITION 5 7 8 P8070* ON ON O O ON O O O P8090* O ON O O ON O O O P85* ON O O O ON O O O P0090* ON ON O O O O O O P05* O ON O O O O O O P00* ON O O O O O O O Model M HEAT OOL P8070* 00 50 P8090* 0 50 P85* 0 50 P0090* 0 80 P05* 0 80 P00* 700 80 Unit dipswitches are factory set for each model, see label on blower housing for M adjustment next to low voltage terminal connections. NOTE: Heating airflow must be adjusted to provide the temperature rise shown on rating plate. *P0***A ONL: Low stage airflow is approximately 75% of high stage cooling airflow. Example: High stage cooling airflow is 800 M. Low stage cooling airflow is 0.75*800 M = 50 M. The adjustment factors for the ADJUST function are A =, =.0 (+0%) and = 0.85 (-5%). The D tap for the ADJUST function has no effect on airflow. Example: Airflow tables indicate 5 M. ith the ADJUST set to tap, the M becomes.0*5 M = 58 M. Dehumidification The E EM motor has the capability to provide increased dehumidification during cooling operation. This is accomplished by lowering the airflow to approximately 85% of the nominal cooling airflow. Example: Unit is operating at 00 M and humidistat calls for dehumidification. esulting airflow is 0.85* 00 M = 90 M. To make use of this feature, a VA humidistat which opens on humidity rise is required. onnect humidistat to the HUMIDISTAT/HUM terminal on the low voltage terminal board (see wiring diagram in the appendix). lip the HUM/ PJ jumper on the low voltage terminal board. The system is now ready to provide dehumidification. Limit heck heck limit control operation after 5 minutes of operation by blocking the return air grille(s).. After several minutes the main burners must go O. lower will continue to run.. emove air restrictions and main burners will relight after a cool down period of a few minutes. Adjust the thermostat setting below room temperature.. Main burners must go O.. irculating Air lower will continue to run for 0, 5 or 50 seconds, depending on the setting. *P(8,0)***A ONL: irculating Air lower will continue to run for 80 seconds.
8 5 9 9 D UNUSED HEAT OOL K 0 K 8 0 K K D 8 D9 D0 D 0 5 D 7 D 9 Z 5 D5 D7 to ensure the proper refrigerant superheat at the compressor is adjusted for each application. or example, 0 degree refrigerant superheat level is adequate for a 95 degree outdoor ambient temperature and a 78-80 degree for indoor return air temperature. As the outdoor ambient temperature rises the superheat decreases and as the outdoor ambient temperature lowers the superheat increases. Proper superheat adjustment optimizes cooling performance. or models equipped with thermostatic expansion valve, charge system to - degrees of subcooling, adjust expansion valve stem for superheat setting when necessary. 08-8-00A ontrol oard (Top) NOTE: If necessary, adjust fan O delay settings to obtain satisfactory comfort level. LED NOTE: The expansion valve will not need adjustment for most applications. Ensure system superheat is set between 0- degrees after final adjustment. ooling Operation ANIN THIS UNIT MUST NOT E USED AS A "ONSTUTION HEATE" DUIN THE INISHIN PHASES O ONSTUTION ON A NE STUTUE. T HIS TPE O USE MA ESULT IN PEMATUE AILUE O THE UNIT DUE TO EXTEMEL LO ETUN AI TEMPEATUES AND EXPOSUE TO OOSIVE O VE DIT ATMOSPHEES. Unit Shutdown. Set the thermostat to lowest setting.. Turn off the electrical power supply to the unit.. emove the heat exchanger door on the side of the unit by removing screws.. Move the gas control valve switch to the O position. Do not force. 5. lose manual gas shutoff valve external to the unit.. eplace the heat exchanger door on the unit. 7. If cooling and/or air circulation will be desired, turn ON the electrical power. OOLIN STATUP NOTE: heck all manual reset limit controls in heating circuit if cooling mode does not operate. ompressor Protection Devices The compressor includes components which are designed to protect the compressor against abnormal operating conditions. ANIN TO PEVENT PESONAL INJU O DEATH, ALAS DISONNET ELETIAL POE EOE INSPETIN O SEVIIN THE UNIT. ALL OMPESSO POTETION DEVIES ESET AUTOMATIALL, ENEIZIN THE ONTATO AND OUTDOO AN. ooling efrigerant harging heck unit charge before putting the cooling section into full operation. The unit is factory charged with - for nominal air flow and static pressure conditions. The unit has a piston flowrator expansion device. NOTE: *P0 is equipped with a thermostatic valve expansion device. To ensure the unit is properly charged for the intended application, check the unit refrigerant superheat at the compressor. The refrigerant superheat is a function of outdoor ambient temperature and return air temperature of the conditioned space. It is the installing contractors responsibility NOTE: Mechanical cooling cannot be reliably provided at ambient temperatures below 50.. Turn on the electrical power supply to the unit.. Place the room thermostat selector switch in the OOL position (or AUTO if available, and if automatic changeover from cooling to heating is desired).. Set the room thermostat to the desired temperature. TOUESHOOTIN INITION ONTOL EO ODES The following presents probable causes of questionable unit operation. efer to Diagnostic Indicator hart for an interpretation of the signal and to this section for an explanation. emove the control box access panel and note the number of diagnostic LED flashes. efer to Diagnostic Indicator hart for an interpretation of the signal and to this section for an explanation. ANOMAL OPEATION - HEATIN Internal ontrol ailure If the integrated ignition control in this unit encounters an internal fault, it will go into a hard lockout and turn off the diagnostic LED. If diagnostic LED indicates an internal fault, check power supply to unit for proper voltage, check all fuses, circuit breakers and wiring. Disconnect electric power for five seconds. If LED remains off after restoring power, replace control. External Lockout An external lockout occurs if the integrated ignition control determines that a measurable combustion cannot be established within three () consecutive ignition attempts. If flame is not established within the seven (7) second trial for ignition, the gas valve is deenergized, 5 second inter-purge cycle is completed, and ignition is reattempted. The control will repeat this routine three times if a measurable combustion is not established. The control will then shut off the induced draft blower and go into a lockout state. If flame is established but lost, the control will energize the circulator blower at the heat speed and then begin a new ignition sequence. If flame is established then lost on subsequent attempts, the control will recycle for four () consecutive ignition attempts (five attempts total) before locking out. 5