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580J*08--14D,F(2--COMPRESSOR)
NOMINAL7.5to12.5TONS
WITHPURONR(R--410A)REFRIGERANT
ServiceandMaintenanceInstructions
TABLEOFCONTENTS SAFETYCONSIDERATIONS
SAFETY CONSIDERATIONS .................... 1
Installation and servicing of air-conditioning equipment
can be hazardous due to system pressure and electrical
UNIT ARRANGEMENT AND ACCESS ........... 2
components. Only trained and qualified service personnel
SUPPLY FAN (BLOWER) SECTION .............. 4
should install, repair, or service air-conditi
Resumo do conteúdo contido na página número 2
! ! WARNING WARNING FIRE, EXPLOSIONHAZARD FIRE, EXPLOSIONHAZARD Failure to follow this warning could result in personal Failure to follow this warning could result in injuryordeath. personal injury, deathand/orpropertydamage. Disconnect gas piping from unit when pressure testing Refer to the User’s Information Manual provided at pressure greater than 0.5 psig. Pressures greater withthisunitformoredetails. than 0.5 psig will cause gas valve damage resulting in Do not store or use gasoline or othe
Resumo do conteúdo contido na página número 3
Heating S Heatexchangerfluepassagewayscleanliness S Gasburnercondition S Gasmanifoldpressure S Heatingtemperature rise EconomizerorOutsideAirDamper S Inlet filterscondition S Checkdampertravel(economizer) BLOWER ACCESS S Checkgearanddampersfordebrisanddirt PANEL AirFiltersandScreens CONTROL BOX COMPRESSORS Each unit is equipped with return air filters. If the unithas an economizer, it will also have an outside air screen. If a C09239 manual outside air damper is added, an inlet air screen Fig. 2
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SUPPLYFAN(BLOWER)SECTION 22 3/8 (569 mm) ! WARNING ELECTRICALSHOCKHAZARD Failure to follow this warning could cause personal injuryordeath. DIVIDER Before performing service or maintenance operations OUTSIDE on the fan system, shut offall unit power andtag--out AIR the unit disconnect switch. Do not reach into the fan HOOD sectionwithpowerstillappliedtounit. CLEANABLE ALUMINUM FILTER SupplyFan(Belt--Drive) FILTER The supply fan system consists of a forward--curved BAROMETRIC centrifugal blower w
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To replace the belt: To align fan and motor pulleys: 1. Use a belt with same section type or similar size. Do 1. Loosen fan pulley setscrews. not substitute a “FHP” type belt. When installing the 2. Slide fan pulley along fan shaft. Make angular align- new belt, do not use a tool (screwdriveror pry--bar)to ment by loosening motor from mounting. force the belt over the pulley flanges, this will stress 3. Tighten fan pulley setscrews and motor mounting the belt and cause a reduction in belt life.
Resumo do conteúdo contido na página número 6
TUBES ChangingtheFanWheelSpeedbyChangingPulleys The horsepower rating of the belt is primarily dictated by FINS the pitch diameter of the smaller pulley in the drive system (typically the motor pulley in these units). Do not install a replacement motor pulley with a smaller pitch diameter than provided on the original factory pulley. Change fan wheel speed by changing the fan pulley (larger pitch diameter to reduce wheel speed, smaller pitch diameter to increase wheel speed) or select a new syst
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RoutineCleaningofNOVATIONCondenserCoil Totaline Environmentally Sound Coil Cleaner Application Surfaces Equipment S 2-1/2gallongardensprayer To clean the NOVATION condenser coil, chemicals are NOT to be used; only water is approved as the cleaning S waterrinsewithlowvelocityspraynozzle solution. Only clean potable water is authorized for cleaning NOVATION condensers. Carefully remove any ! CAUTION foreign objects or debris attached to the coil face or trapped within the mounting frame and bracke
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9. Finned surfaces should remain wet with cleaning Because Puron (R--410A) refrigerant is a blend, it is solution for 10 minutes. strongly recommended that refrigerant always be removed from the cylinder as a liquid. Admit liquid refrigerant into 10. Ensure surfaces are not allowed to dry before rinsing. the system in the discharge line. If adding refrigerant into Reapply cleaner as needed to ensure 10--minute satur- the suction line, use a commercial metering/expansion ation is achieved. device
Resumo do conteúdo contido na página número 9
SEAT CORE (Part No. EC39EZ067) 1/2-20 UNF RH 0.596 o 45 o 30 WASHER DEPRESSOR PER ARI 720 O-RING +.01/-.035 1/2" HEX .47 FROM FACE OF BODY 5/8” HEX 7/16-20 UNF RH This surface provides a metal to metal seal when torqued into the seat. Appropriate handling is required to not scratch or dent the surface. C08453 Fig. 9 -- CoreMax AccessPort Assembly EXAMPLE: Model 580J*14D Circuit 1: Outdoor Temperature.................. 85_F(29_C) Suction Pressure................. 125 psig (860 kPa) Sucti
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COOLINGCHARGINGCHARTS C09221 Fig. 10 -- Cooling Charging Charts (08D,F -- Both Circuits) 10 580J
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COOLINGCHARGINGCHARTS C09222 Fig. 11 -- Cooling Charging Charts (12D,F -- Both Circuits) 11 580J
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COOLINGCHARGINGCHARTS 12.5 TON CIRCUIT 1 C09240 Fig. 12 -- Cooling Charging Charts (14D,F -- Circuit 1) 12 580J
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COOLINGCHARGINGCHARTS 12.5 TON CIRCUIT 2 C09241 Fig. 13 -- Cooling Charging Charts (14D,F -- Circuit 2) 13 580J
Resumo do conteúdo contido na página número 14
Table1–CoolingServiceAnalysis PROBLEM CAUSE REMEDY Power failure. Callpowercompany. Fuseblownorcircuitbreakertripped. Replacefuseorresetcircuitbreaker. Defectivethermostat,contactor,transformer, Replacecomponent. CompressorandCondenser orcontrolrelay. Fan WillNotStart. Insufficientlinevoltage. Determinecauseand correct. Incorrectorfaulty wiring. Checkwiring diagramand rewirecorrectly. Thermostatsetting toohigh. Lowerthermostatsetting belowroomtemperature. Faultywiring orlooseconnectionsin Checkw
Resumo do conteúdo contido na página número 15
The suction and discharge pressure levels should now Compressors move to their normal start--up levels. Lubrication NOTE: When the compressor is rotating in the wrong Compressors are charged with the correct amount of oil at direction, the unit makes an elevated level of noise and the factory. does not provide cooling. FilterDrier ! CAUTION Replace whenever refrigerant system is exposed to atmosphere. Only use factory specified liquid--line filter UNIT DAMAGE HAZARD driers with working pressures
Resumo do conteúdo contido na página número 16
CONVENIENCEOUTLETS COVER - WHILE-IN-USE WEATHERPROOF ! WARNING ELECTRICALOPERATIONHAZARD Failure to follow this warning could result in personal injuryordeath. Units with convenience outlet circuits may use multiple disconnects. Check convenience outlet for power status before opening unit for service. Locate its disconnect switch, if appropriate, and open it. Tag--outthisswitch, ifnecessary. Two types of convenience outlets are offered on 580J models: Non--powered and unit--powered. Both types
Resumo do conteúdo contido na página número 17
UsingUnit--MountedConvenienceOutlets Units with unit--mounted convenience outlet circuits will often require that two disconnects be opened to de--energize all power to the unit. Treat all units as electrically energized until the convenience outlet power isalsocheckedand de--energizationis confirmed. Observe National Electrical Code Article 210, Branch Circuits, for use of convenience outlets. SMOKEDETECTORS Smoke detectors are available as factory--installed options on 580J models. Smoke detec
Resumo do conteúdo contido na página número 18
Duct smoke sensor Duct smoke sensor controller Exhaust tube Conduit nuts Exhaust gasket (supplied by installer) Sensor housing and electronics See Conduit support plate Detail A Terminal block cover Intake Controller housing Cover gasket gasket and electronics (ordering option) Cover gasket (ordering option) Controller cover Conduit couplings (supplied by installer) TSD-CO2 (ordering option) Sensor cover Plug Fastener (2X) Sampling tube (ordered separately) Coupling Detail A Trouble Alarm Power
Resumo do conteúdo contido na página número 19
ReturnAirWithoutEconomizer CompletingInstallationofReturnAirSmoke Sensor The sampling tube is located across the return air opening on the unit basepan. (See Fig. 22.) The holes in the 1. Unscrew the two screws holding the Return Air sampling tube face downward, into the return air stream. Sensor detector plate. (See Fig. 24.) Save the screws. The samplingtube isconnected via tubing tothe returnair 2. Remove the Return Air Sensor and its detector plate. sensor that is mounted on a bracket high o
Resumo do conteúdo contido na página número 20
B D C F E A C08246 Fig. 26 -- Typical Smoke Detector System Wiring HighlightB Additional Application Data — Refer to Catalog No. HKRNKA--1XA for discussions on additional control Smoke detector NC contact set will open on smoke alarm features of these smoke detectors including multiple unit condition, de--energizing the ORN conductor. coordination. (See Fig. 26.) HighlightC SensorandControllerTests 24--v power signal via ORN lead is removed at Smoke SensorAlarmTest Detector input on LCTB; all un
