Résumé du contenu de la page N° 1
Air-Cooled Condenser
Installation & Operation
Bulletin No. H-IM-90 August 2008 Part Number 25007301
Replaces.H-IM-90,.March.2006
Table of Contents
Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 . . . . . . . . . . . . . .
System.Warranty .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Résumé du contenu de la page N° 2
Inspection Unit Location Responsibility.should.be.assigned.to.a.dependable.individual.at. Units.are.designed.for.outdoor.application.and.may.be.mounted. the.job.site.to.receive.material ..Each.shipment.should.be.carefully. on.a.roof.or.concrete.slab.(ground.level.installation) ...Roof. mounted.units.should.be.installed.level.on.steel.channels.or.an. checked.against.the.bill.of.lading .. The.shipping.receipt.should. not.be.signed.until.all.items.listed.on.the.bill.of.lading.have.been. I-beam.
Résumé du contenu de la page N° 3
Drawing 1. Rigging Instructions 3
Résumé du contenu de la page N° 4
Space and Location Requirements The.most.important.consideration.which.must.be.taken. Another.consideration.which.must.be.taken.is.that.the.unit. into.account.when.deciding.upon.the.location.of.air-cooled. should.be.mounted.away.from.noise.sensitive.spaces.and.must. equipment.is.the.provision.for.a.supply.of.ambient.air.to.the. have.adequate.support.to.avoid.vibration.and.noise.transmission. condenser,.and.removal.of.heated.air.from.the.condenser.area .. into.the.building ..Units.should.be.mount
Résumé du contenu de la page N° 5
Notes: Typical Arrangements Figure.1.illustrates.a.typical.piping.arrangement.involving.a. 1 .. All.oil.traps.are.to.be.as.short.in.radius.as.. . remote.condenser.located.at.a.higher.elevation,.as.commonly. . possible ..Common.practice.is.to.fabricate.the.. . encountered.when.the.condenser.is.on.a.roof.and.the.compressor. . trap.using.three.90.degrees.ells . . and.receiver.are.on.grade.level.or.in.a.basement.equipment. room .. 2 .. Pressure.relief.valves.are.recommended.at.the.. . . . condenser.
Résumé du contenu de la page N° 6
Discharge Lines The.proper.design.of.discharge.lines.involves.two.objectives:. 1 .. To.minimize.refrigerant.pressure.drop,.since.high.. . 2 .. To.maintain.sufficiently.high.gas.velocity.to.carry.oil.. pressure.losses.cause.increased.compressor.. . . . through.to.the.condenser.coil.and.receiver.at.all.loading.. horsepower.per.ton.of.refrigerant . . conditions . Table 1. Tons of Refrigeration Line Size Discharge Line Drain Line Type L Copper Velocity 100 FPM Refrigerant R-22 Sat. Suction Temp
Résumé du contenu de la page N° 7
Diagram 1. Typical Condenser Wiring Diagram with Fan Cycle Controls 7
Résumé du contenu de la page N° 8
Start-Up Fan Cycling Check.for.proper.fan.rotation ...Air.is.drawn.through.the.coil.on.all. A.decrease.in.ambient.air.temperature.results.in.a.capacity. units ...Be.sure.the.fans.turn.freely . . increase.in.the.air-cooled.condenser .. This.capacity.increase.is. . directly.proportional.to.the.temperature.difference.between.the. Rotation.of.the.motors.and.blades.should.be.in.a.“CW”.direction. condensing.temperature.and.the.temperature.of.the.ambient. looking.at.the.unit.from.the.blade.side ..
Résumé du contenu de la page N° 9
Fan Cycling Head Pressure Controls Flooding Head Pressure Controls Condenser.fans.are.cycled.to.maintain.adequate.head.pressure .. Another.means.of.head.pressure.control.is.to.change.the. Ambient.and.pressure.fan.cycling.are.available.as.optional. condenser.capacity.by.filling.the.inside.of.the.condenser.with. equipment . . liquid.refrigerant ..Flooding.controls.are.ideal.for.condensers. . operating.in.low.ambient.conditions.(beyond.the.limits.of.fan. Ambient.fan.cycling.cycles.fans.in.respo
Résumé du contenu de la page N° 10
Table 3. Minimum Ambient for Fan Cycling Numb er of Fans Single Double Design T.D.* Row Row 30 25 20 15 10 . 2. 4. 35. 45. 55. 60. 70 . 3. 6. 15. 30. 40. 55. 65 . 4. 8. 0. 15. 30. 45. 60 . 5. 10. 0. 10. 20. 35. 55 . 6./.7. 12./.14. 0. 0. 10. 30. 50 *.Based.on.maintaining.90°F.minimum.condensing.temperature . Table 4. Mechanical Fan Cycling Thermostat Settings ......... . Number of Fans Single Double Design Thermostat Setting Row Rows T.D. 1 2 3 4 5 . 2. 4. 30. 60 . .
Résumé du contenu de la page N° 11
Table 5. Electronic Fan Cycling Thermostat Settings * Number of Fans A350 S350 Temperature Stage Modules Single Double Design Set Offset Settings Row Rows T.D. Point 2 3 4 5 . . . 30. 60 . . . 25. 65 . 2. 4. 20. 70 . . . 15. 75 . . . 10. 80 . . . 30. 60. 20 . . . 25. 65. 10 . 3. 6. 20. 70. 10 . . . 15. 75. 10 . . . 10. 80. 15 . . . 30. 60. 10. 30 . . . 25. 65. 10. 25 . 4. 8. 20. 70. 5. 20 . . . 15. 75. 5. 15 . . . 10. 80. 5. 10 . . .
Résumé du contenu de la page N° 12
Table 7. Refrigerant Charge for Fan Cycling plus Flooded Condenser (lbs. R-22) 25° TD 20° TD 15° TD 10° TD Summer Model* Charge 40°F 20°F 0°F -20°F 40°F 20°F 0°F -20°F 40°F 20°F 0°F -20°F 40°F 20°F 0°F -20°F 1 8 7 8 9 9 8 9 10 10 9 10 11 11 13 12 12 12 2 10 9 12 13 14 11 13 14 15 13 14 15 16 17 18 17 18 3 10 1 6 8 10 4 8 10 11 7 10 12 13 10 13 14 14 4 15 2 9 12 15 7 12 15 17 12 16 18 19 17 19 21 22 5 29 4 17 24 29 14 24 30 34 24 31 36 39 33 38 41 43 6 22 0 3 10 15 0 10 16 20 0 17 22 25 0 24 27
Résumé du contenu de la page N° 13
Table 9. Flooded Charge Temperature Difference Factor Design T.D. Ambient, °F 30 25 20 15 10 +60 – 0 .38 1 .0 1 .74 2 .46 +40 0 .59 0 .80 1 .0 1 .19 1 .40 +20 0 .76 0 .88 1 .0 1 .13 1 .25 0 0 .84 0 .91 1 .0 1 .07 1 .16 -20 0 .88 0 .93 1 .0 1 .05 1 .13 Table 10. Model Cross Reference Model Reference *NH *NL *NX *NQ *NE 1 *NH-S01-A007 *NL-S01-A007 *NX-S01-A006 *NQ-S01-A005 *NE-S01-A008 2 *NH-S01-A009 *NL-S01-A008 *NX-S01-A008 *NQ-S01-A006 *NE-S01-A009 3 *NH-S02-A011 *NL-S02-A010 *NX-S02-A010 *NQ-S
Résumé du contenu de la page N° 14
In-Warranty Return Material Procedure Material.may.not.be.returned.except.by.permission. of.authorized.factory.service.personnel.of.Heatcraft. Refrigeration.Products.in.Stone.Mountain,.Georgia ..A. “Return.Goods”.tag.will.be.sent.to.be.included.with.the. returned.material ..Enter.the.required.information.on.the. tag.in.order.to.expedite.handling.at.our.factories.and. prompt.issuance.of.credits ...All.parts.shall.be.returned. to.the.factory.designated.on.the.“Return.Goods”.tag,. transportation
Résumé du contenu de la page N° 15
E Series Motors with Integrated Variable Speed E.Series.units.use.an.EC.motor/fan.blade.combination.to.provide.variable.speed.condenser.control ...All.components.required. to.run.the.motor.at.variable.speeds.are.built.into.the.motor . Warning! When.connecting.the.unit.to.the.supply.power,.. . dangerous.voltages.occur ..Do.not.open.the.motor.within.. . the.first.5.minutes.after.disconnection.of.all.phases . Be sure that the unit is isolated. Warning! Dangerous.external.voltages.can.be.present..
Résumé du contenu de la page N° 16
Integration constant The.integration.constant.switch.provides.ability.to.change. controller.from.a.proportional.only.control.to.a.proportional. plus.integral.control .. To.provide.the.most.responsive.system. to.maintain.a.stable.head.pressure,.it.is.recommended.this. setting.be.left.on.“fast . ” . Head Pressure Setpoint The.head.pressure.setpoint.potentiometer.is.adjustable. from.90-250.psig ...A.typical.setpoints.are.from.170-200.psig ... Reverse acting or direct acting mode of operation Note:.
Résumé du contenu de la page N° 17
Master/Slave Configuration EC Motor Wiring The.EC.motor.control.signals.are.wired.in.a.Master/ Slave.configuration ... This.configuration.allows.for.the. All.EC.motor.wiring.is.done.at.the.factory ...If.any.motor. maximum.sound.and.energy.reduction.as.well.as.the. wiring.needs.to.be.done.in.the.field,.the.diagram.below. most.stable.head.pressure.control ... The.control.signal.is. indicates.the.terminal.pin.configurations.inside.the. delivered.to.the.master.motor.(located.at.the.header.end. motor
Résumé du contenu de la page N° 18
Diagram 2. Typical 1 x 4 EC M TYPICAL ot 1X4 EC MOT or Wiring with 0-10V DC C OR WIRING ontrol Signal WITH 0-10V DC CONTROL SIGNAL CONTROL WIRING POWER WIRING 0 - 10V DC L1 CONTROL 3Ø POWER SIGNAL L2 SUPPLY L3 PE KL3 KL2 KL1 PE 12 11 10 9 8 7 6 5 4 3 2 1 3 2 1 3 2 1 FAN 1 (HEADER FAN) L1 3Ø POWER L2 SUPPLY BLK L3 RED PE KL3 KL2 KL1 PE 12 11 10 9 8 7 6 5 4 3 2 1 3 2 1 3 2 1 FAN 2 L1 3Ø POWER L2 SUPPLY BLK L3 RED PE KL3 KL2 KL1 PE 12 11 10 9 8 7 6 5 4 3 2 1 3 2 1 3 2 1 FAN 3 L1 3Ø POWER L2 SUPPLY
Résumé du contenu de la page N° 19
KL3 KL3 KL3 KL3 KL3 KL3 KL3 KL3 KL3 KL3 SENSOR BLK BLK BLK BLK BLK BLK BLK BLK BLK BLK RED RED RED RED RED RED RED RED RED RED Diagram 3. Typical EC Condenser Wiring Diagram with External Signal 3ÿ/60Hz FAN MOTOR IDENTIFICATION 5 4 3 2 1 USE COPPER CONDUCTORS ONLY FACTORY WIRING FIELD WIRING DISCONNECT SWITCH L1 L2 L3 FAN SPEED CONTROL CIRCUIT 0 to 10V DC T1 T2 T3 TERMINAL T1 T2 BOARD 1 TERMINAL BOARD 2 M1 8 - GND 7 - 0-10V PWM 2 - GND 1 - OUT M2 8 - GND 7 - 0-10V PWM 2 - GND F5 F4 F3 F2 F1 1 -
Résumé du contenu de la page N° 20
Installation Check List Condenser Start Up Date Model # Serial # Electrical Voltage Amperage Installer: Name & Address Telephone: Please retain this information with the condenser. Since.product.improvement.is.a.continuing.effort,.we.reserve.the.right.to.make.changes.in. specifications.without.notice . ™ The name behind the brands you trust. CLIMATE Commercial Refrigeration Parts CONTROL 20 H-IM-90-0808.
