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09BY006-024
Air-Cooled Condenser Units
5to20Tons
Installation, Start-Up and
Service Instructions
CONTENTS SAFETY CONSIDERATIONS
Page
Installing,startingup,andservicingair-conditioningequip-
SAFETY CONSIDERATIONS .................1
ment can be hazardous due to system pressures, electrical
GENERAL..................................1 components, and equipment location.
Only trained, qualified installers and service mechanics
INSTALLATION ............................1-12
should install, start-up, and
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Fig. 1 — 09BY Unit (008-014 Shown) 2
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HANGER TO OUTSIDE RODS DISCHARGE DUCT 09BY INLET DUCT INSULATE IF THROUGH TO RAIN DRAIN CONDITIONED SPACE (REQUIRED IF RAIN WILL ENTER UNIT) TO REFRIGERANT PIPING COMPRESSOR/ EVAPORATOR UNIT 09BY IN REMOTEAPPLICATION WITH DUCTWORK (Shown Suspended from Ceiling) OUTSIDE WALL OUT WALL LOUVERS (FIELD 09BY SUPPLIED) 50BZ IN POWER CONNECTION HEIGHT AS REQUIRED TO RAIN FOR WINDOW DRAIN OR WALL (REQUIRED OPENING FLOOR IF RAIN WILL LEGEND STAND* ENTER UNIT) Refrigerant Connection 09BY DIRECT CONNECTION
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09BY DIMENSIONS (English) 09BY DIMENSIONS (SI) 006 008 012 014 016,024 006 008 012 014 016,024 DIMENSION DIMENSION (Ft-in.) (Ft-in.) (Ft-in.) (Ft-in.) (Ft-in.) (mm) (mm) (mm) (mm) (mm) 1 13 13 13 A 2-11 ⁄2 3- 6 ⁄16 3- 6 ⁄16 3- 6 ⁄16 5- 0 A 902 1087 1087 1087 1526 11 5 5 5 7 B 1- 7 ⁄16 1-11 ⁄8 1-11 ⁄8 1-11 ⁄8 2- 9 ⁄16 B 500 600 600 600 850 7 1 9 C 4- 0 ⁄16 4- 8 5- 3 ⁄2 5-11 7- 6 ⁄16 C 1231 1422 1613 1804 2300 1 9 9 9 D 1-11 ⁄4 2- 3 ⁄16 2- 3 ⁄16 2- 3 ⁄16 2-11 D 590 701 701 701 911 1 3 E 0-11 ⁄8 1-
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CORNER WEIGHTS (Lb) UNIT ABC D SIZE 006 55 73 59 42 008 61 89 73 44 012 86 114 93 64 014 107 142 114 78 016 123 159 127 91 024 132 195 158 95 NOTES: UNIT APPROX. SHAFT LENGTH 1. Operational clearances are 0 in. on all sides of the unit. SIZE (in.) 2. Serviceclearancesare0in.(minimum)onthetop,rear,andfront oftheunit.Aminimumof3ftserviceclearanceisrequiredonthe 006 41.0 unit right side, anda3ft clearance is recommended on the left 008 47.0 side(2ftistheminimum).Onesideoftheunit(eitherright,left,or
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Table 1 — Condenser Unit Application 09BY UNIT 50BZ 006 008 012 014 016 024 006 S 008 S 012 OS 014 OS 016 OS 024 OS LEGEND S— Standard O— Optional NOTE: Contact your local representative for use with reciprocating air-cooled chillers and other compressor-bearing unit combinations. Table 2 — Physical Data UNIT 09BY 006 008 012 014 016 024 1 NOMINAL TONS 57⁄2 10 12 15 20 OPERATING WEIGHT (Lb) 267 357 441 471 837 970 REFRIGERANT R-22 Number of Circuits 1 122 2 3 Minimum Charge (Lb/Ckt) 6 11 6 6/11
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POSITIONING THE 09BY UNIT — Refer to notes in Step 2 — Rig and Place Unit Fig. 3 for typical service clearances. RIGGING—The09BYunitsaremountedonskids.Leave 1 Tosuspendtheunit,use4,field-supplied, ⁄2-in.diameter theunitontheskiduntilitisinthefinalposition.Whileon (orlarger)threadedrods.Mount2heavychannelsunderthe theskid,theunitcanberolled,draggedorforklifted;donot entire width of the unit, allowing them to protrude beyond apply force to the unit. Use a minimum of 3 rollers when thewidthoftheunits
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Adrain kit is provided (shipped in the fan section). This Step3—InstallAccessoryLow-AmbientKitor kit consists of PVC drain fittings to adapt to field-supplied InletFilterKit(IfRequired)— Iftheunitwillbeop- threadedpipe.Makeconnectionsthroughtheunitsidepanel. erated with inlet air to the condenser below 50 F, a low- Some applications may require connection to either galva- ambientdampermayberequired.Thelow-ambientkitcon- nizedsteelorcopperdrainpipe;consultlocalcoderequire- trols head pressure by di
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LIQUID LIFT—Amount of liquid lift available before re- Three-circuit units (024) may be manifolded in any combi- frigerant flashing occurs depends on amount of liquid sub- nationof1,2,or3circuitspercompressor.Whenmanifold- cooling in the system. ing circuits, NEVER CONNECTTWO SEPARATE COM- PRESSOREVAPORATORCIRCUITSTOGETHERONTHE All 09BYcondensers have positive subcooling when ap- SAME CONDENSER CIRCUIT. Pipe sizes for the com- plied with optimum charge. With subcooling, it is possible bined circu
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CHECK VALVE — When the 09BYcondenser is installed Ifductworkisusedfromstandarddischargeopeningsand with the condenser located above the compressor evapora- anotherbirdscreenisprovided,removefactory-suppliedscreen tor, it is recommended that a field-supplied check valve be to reduce static pressure loss. Units 09BY006-014 have a installedonthehotgasdischargeline.Thispreventsrefrig- factory-installed flange to connect ductwork to the con- erant which condenses in the discharge line during the off de
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Step 8 — Complete Electrical Connections IMPORTANT: Units may be used on 208, 230, 460, or 575 v, 3-phase systems. As shipped from the fac- tory, units are wired for 460 v or 575 v operation. If theunitwillbeusedona208or230vsystem,rewire thecondenserfanmotorpriortounitstart-up.The575-v motor is connected to the proper voltage as shipped, and all connections are internal to the motor. To rewire the unit, disconnect and reconnect the wires at themotorjunctionboxasshownontheconnectiondiagram on the
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Determine maximum deviation from average voltage: MAIN POWERWIRING —The units must have adequate overcurrent protection, fuses, or HACR (Heating, Air (AB) 243 – 239=4v Conditioning and Refrigeration) breakers, according to the (BC) 239 – 236=3v national and applicable local codes. (AC) 239 – 238=1v Forfieldpowerconnections,allmainpowerwiringenters Maximumdeviationisthen4v.Todeterminethepercentage theunitthroughafactory-punchedaccessholeunderthecon- of voltage imbalance: trol box.Attach power wire
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START-UP Condenser Fan Adjustment Topreventpersonalinjury,besurewirefanguardsare Topreventpersonalinjury,besurewirefanguardsare secured in place over each fan discharge (or that fans secured in place over each fan discharge (or that fans are ducted) before starting the unit. are ducted) before starting the unit. Complete Unit Start-Up Checklist on page CL-1 prior to TO CHANGE FAN SPEED start-up of this system. 1. Shut off unit power supply. SystemEvacuationandDehydration— Referto 2. Loosen fan b
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Table 5 — Condenser Fan Performance EXTERNAL STATIC PRESSURE (in. wg) UNIT AIRFLOW 0.0 0.2 0.4 0.6 0.8 1.0 09BY (Cfm) Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 2000 676 0.26 905 0.51 1085 0.80 1230 1.08 1348 1.34 1449 1.60 2500 845 0.51 1039 0.82 1197 1.14 1339 1.51 1466 1.88 1570 2.21 006 3000 1014 0.88 1188 1.28 1321 1.61 1450 2.02 1569 2.46 1684 2.93 3500 1183 1.39 1336 1.86 1458 2.26 1575 2.70 1683 3.18 — — 4000 1352 2.08 1487 2.61 1608 3.15 1704 3.53 ———— 3000 589 0.43 766 0.79 900 1.
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TO CHANGE FAN WHEEL— If a fan wheel should fail, Drains must be kept free of dirt and trash. Coils can be it may be replaced as follows: cleaned with a stiff brush, vacuum cleaner, or compressed air. Coil can be reached through access panels. 1. Remove belts from fan pulley. 2. Loosenlockingcollarsonthefanbearingsandsetscrews Inspection — Check coil baffles for tight fit to prevent on the fan wheels. air from bypassing the coil. 3. Removetheshaftthroughtheaccesspaneloneitherside Checkpanelsforair
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TROUBLESHOOTING See Table 6 for problems and possible solutions. Table6—Troubleshooting PROBLEM POTENTIAL CAUSE SOLUTION 1. Fan belts are slipping or broken. 1. Check and replace belts as necessary. 2. Fan is not delivering adequate air for condenser. 2. Check airflow (see Table 2)*. Unit is tripping on 3. Low-ambient damper is not functioning correctly 3. Check damper operation and adjust as required. high-pressure switch (if equipped). or high discharge 4. Dirty coil or plugged or restricted ai
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Copyright 1996 Carrier Corporation Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 2 4 PC 111 Catalog No. 530-969 Printed in U.S.A. Form 09BY-2SI Pg 18 9-96 Replaces: 09BY-1SI Tab 4a 4a
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START-UP CHECKLIST A. Preliminary Information COMPRESSOR BEARING UNIT: MODEL NO. SERIAL NO. 09BY UNIT: MODEL NO. SERIAL NO. FIELD-INSTALLEDACCESSORIES B. Pre-Start-Up CONDENSING UNIT IS THEREANY SHIPPING DAMAGE? (Y/N) IF SO, WHERE: WILLTHIS DAMAGE PREVENT UNIT START-UP? (Y/N) CHECK POWER SUPPLY. DOES ITAGREE WITH UNIT? (Y/N) HAS THE GROUND WIRE BEEN CONNECTED? (Y/N) HAS THE CIRCUIT PROTECTION BEEN SIZEDAND INSTALLED PROPERLY? (Y/N) ARE THE POWER WIRES TO THE UNIT SIZEDAND INSTALLED PROPERLY? (Y/
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CHECK VOLTAGE IMBALANCE IS CONDENSER MOTOR WIRED FOR CORRECT VOLTAGE? (Y/N) LINE-TO-LINE VOLTS: AB VAC VBC V (AB +AC + BC)/3 =AVERAGE VOLTAGE = V MAXIMUM DEVIATION FROMAVERAGE VOLTAGE = V VOLTAGE IMBALANCE = 100 X (MAX DEVIATION)/(AVERAGE VOLTAGE) = % IF OVER 2% VOLTAGE IMBALANCE, DO NOTATTEMPT TO START SYSTEM! CALL LOCAL POWER COMPANY FORASSISTANCE. C. Start-Up CHECK INDOOR (EVAPORATOR) FAN SPEEDAND RECORD. CHECK OUTDOOR (CONDENSER) FAN SPEEDAND RECORD. AFTERAT LEAST 15 MINUTES RUNNING TIME, RE
