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Carrier 09BY006-024 manual

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Table of contents for the manual

  • Page 1

    Installation, Start-Up and Service Instructions CONTENTS Page SAFETY CONSIDERA TIONS .................1 GENERAL ..................................1 INST ALLA TION ............................ 1-12 Step 1 − Complete Pre-Installation Checks ..1 Step 2 − Rig and Place Unit ................7 • RIGGING • PLACING THE UNIT • VIBRA TION ISOLA TIO[...]

  • Page 2

    Fig. 1 — 09BY Unit (008-014 Shown) 2[...]

  • Page 3

    LEGEND Refrigerant Connection Field-Supplied Refrigerant Piping *Field-Supplied Floor Stand (Height to Match W all Opening). Fig. 2 — Mounting Applications 09BY DISCHARGE DUCT INLET DUCT TO OUTSIDE INSULA TE IF THROUGH CONDITIONED SP ACE HANGER RODS TO RAIN DRAIN (REQUIRED IF RAIN WILL ENTER UNIT) TO REFRIGERANT PIPING COMPRESSOR/ EV APORA TOR UN[...]

  • Page 4

    09BY DIMENSIONS (English) DIMENSION 006 (Ft-in.) 008 (Ft-in.) 012 (Ft-in.) 014 (Ft-in.) 016,024 (Ft-in.) A 2-1 1 1 ⁄ 2 3- 6 13 ⁄ 16 3- 6 13 ⁄ 16 3- 6 13 ⁄ 16 5- 0 B 1- 7 11 ⁄ 16 1-1 1 5 ⁄ 8 1-1 1 5 ⁄ 8 1-1 1 5 ⁄ 8 2- 9 7 ⁄ 16 C 4- 0 7 ⁄ 16 4- 8 5- 3 1 ⁄ 2 5-1 1 7- 6 9 ⁄ 16 D 1-1 1 1 ⁄ 4 2- 3 9 ⁄ 16 2- 3 9 ⁄ 16 2- 3 9 ?[...]

  • Page 5

    NOTES: 1. Operational clearances are 0 in. on all sides of the unit. 2. Service clearances are 0 in. (minimum) on the top, rear , and front of the unit. A minimum of 3 ft service clearance is required on the unit right side, an da3f t clearance is recommended on the left side (2 ft is the minimum). One side of the unit (either right, left, or rear)[...]

  • Page 6

    T able 1 — Condenser Unit Application UNIT 50BZ 09BY 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. T able 2 — Physical Data UNIT 09BY 006 008 012 014 016 024 [...]

  • Page 7

    Step 2 — Rig and Place Unit RIGGING — The 09BY units are mounted on skids. Leave the unit on the skid until it is in the final position. While on the skid, the unit can be rolled, dragged or forklifted; do not apply for ce to the unit. Use a minimum of 3 rollers when rolling, and raise from above to remove the skid when unit is in the final p[...]

  • Page 8

    Step 3 — Install Accessory Low-Ambient Kit or Inlet Filter Kit (If Required) — If the unit will be op- erated with inlet air to the condenser below 50 F , a low- ambient damper may be required. The low-ambient kit con- trols head pressure by discharge dampers on the condenser fan. The dampers are actuated by a refrigerant-operated pis- ton conn[...]

  • Page 9

    LIQUID LIFT — Amount of liquid lift available before re- frigerant flashing occurs depends on amount of liquid sub- cooling in the system. All 09BY condensers have positive subcooling when ap- plied with optimum charge. W ith subcooling, it is possible to overcome an appreciable pressure drop and/or static head pressure (due to elevation of the [...]

  • Page 10

    CHECK V AL VE — When the 09BY condenser is installed with the condenser located above the compressor evapora- tor , it is recommended that a field-supplied check valve be installed on the hot gas discharge line. This prevents refrig- erant which condenses in the discharge line during the of f cycle from draining back into the compressor . Instal[...]

  • Page 11

    3. A high-density fiberglass (2 lb minimum density) or semi- rigid foamed insulation such as Styrofoam™ will be re- quired inside the ducts to prevent air erosion. The insu- lation must be firmly secured in the discharge duct near the blower discharge to withstand the high air velocity . Step 7 — Insulate the Unit — The 09BY units are not i[...]

  • Page 12

    Determine maximum deviation from average voltage: (AB) 243 – 23 9=4v (BC) 239 – 23 6=3v (AC) 239 – 23 8=1v Maximum deviation is then 4 v . T o determine the percentage of voltage imbalance: 4 % V oltage Imbalance = 100 x 239 = 1.7% This amount of phase imbalance is satisfactory since it is below the allowable maximum of 2%. IMPOR T ANT : If s[...]

  • Page 13

    ST ART -UP To prevent personal injury, be sure wire fan guards are secured in place over each fan discharge (or that fans are ducted) before starting the unit. Complete Unit Start-Up Checklist on page CL-1 prior to start-up of this system. System Evacuation and Dehydration — Refer to GT AC II, Module 4, ‘ ‘Dehydration for Proper Evacuation an[...]

  • Page 14

    T able 5 — Condenser Fan Performance UNIT 09BY AIRFLOW (Cfm) EXTERNAL ST A TIC PRESSURE (in. wg) 0.0 0.2 0.4 0.6 0.8 1.0 Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp 006 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 1 197 1.14 1339 1.51 1466 1.88 1570 2.21 3000 1014 0.88 1 188 1.28 1321 1.61 1450 2.02 1[...]

  • Page 15

    TO CHANGE F AN WHEEL — If a fan wheel should fail, it may be replaced as follows: 1. Remove belts from fan pulley . 2. Loosen locking collars on the fan bearings and set screws on the fan wheels. 3. Remove the shaft through the access panel on either side of the unit. 4. Remove the fan cut-of f plate in the fan discharge. 5. Remove the fan wheel [...]

  • Page 16

    TROUBLESHOOTING See T able 6 for problems and possible solutions. T a b l e6—T roubleshooting PROBLEM POTENTIAL CAUSE SOLUTION Unit is tripping on high-pressure switch or high discharge pressure is noted. 1. Fan belts are slipping or broken. 2. Fan is not delivering adequate air for condenser . 3. Low-ambient damper is not functioning correctly ([...]

  • Page 17

    [...]

  • Page 18

    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 Ta b 4 a 4 a PC 1 1 1 Catalog No. 530-969 Printed in U.S.A. Form 09BY -2SI Pg 18 9-96 Replaces: 09BY -1SI[...]

  • Page 19

    ST ART -UP CHECKLIST A. Preliminary Information COMPRESSOR BEARING UNIT : MODEL NO. SERIAL NO. 09BY UNIT : MODEL NO. SERIAL NO. FIELD-INST ALLED ACCESSORIES B. Pre-Start-Up CONDENSING UNIT IS THERE ANY SHIPPING DAMAGE? (Y/N) IF SO, WHERE: WILL THIS DAMAGE PREVENT UNIT ST ART -UP? (Y/N) CHECK POWER SUPPL Y . DOES IT AGREE WITH UNIT? (Y/N) HAS THE GR[...]

  • Page 20

    CHECK VOL T AGE IMBALANCE IS CONDENSER MOTOR WIRED FOR CORRECT VOL T AGE? (Y/N) LINE-TO-LINE VOL TS: AB VA C VB C V (AB + AC + BC)/3 = A VERAGE VOL T AGE = V MAXIMUM DEVIA TION FROM A VERAGE VOL T AGE = V VOL T AGE IMBALANCE = 100 X (MAX DEVIA TION)/(A VERAGE VOL T AGE) = % IF OVER 2% VOL T AGE IMBALANCE, DO NOT A TTEMPT TO ST ART SYSTEM! CALL LOCA[...]