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Energy Tech Laboratories DSH manual

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Table of contents for the manual

  • Page 1

    Model DSH Ceiling Mounted Ducted R-410A Air Conditioning Units New Release Form 145.32-IOM1 (908) CEILING MOUNTED DUCTED R-410A AIR CONDITIONING UNITS INST ALLA TION INSTRUCTIONS[...]

  • Page 2

    JOHNSON CONTROLS 2 FORM 145.32-IOM1 (908) This equipment is a relatively complicated apparatus. During installation, operation, maintenance or service, individuals may be exposed to certain components or conditions including, but not limited to: refrigerants, oils, materials under pressure, rotating components, and both high and low voltage. Each o[...]

  • Page 3

    FORM 145.32-IOM1 (908) 3 JOHNSON CONTROLS CHANGEABILITY OF THIS DOCUMENT T ABLE OF CONTENTS In complying with Joh nson C ontro ls policy for continu- ous product improvement, the information contained in this document is subject to change without notice. While Jo hnson Con trols makes no commitment to up- date or provide current information automat[...]

  • Page 4

    JOHNSON CONTROLS 4 FORM 145.32-IOM1 (908) GENERAL INFORMA TION Our units are designed to meet the ever-changing (un ique) instal latio n requi remen ts of today ’s mark et. The horizontal conguration is unitized for single package or split installation. Low prole design allows the unit to be installed on the oor or suspended from the cei[...]

  • Page 5

    FORM 145.32-IOM1 (908) 5 JOHNSON CONTROLS TYPICAL INST ALLA TION DRA WING[...]

  • Page 6

    JOHNSON CONTROLS 6 FORM 145.32-IOM1 (908) PRE-INST ALLA TION INSPECTION OF EQUIPMENT All units are factory tested to ensure safe operation and quality assembly . Units are packaged and sealed on shipping skids and shipped in rst class condition. T orn and broken packaging, scratched or dented panels should be reported to carrier immediately . An[...]

  • Page 7

    FORM 145.32-IOM1 (908) 7 JOHNSON CONTROLS UNIT MOUNTING The 2 through 5 ton unit consist of an evaporator and condenser module. These two modules are rigidly at- tac hed by a join ing str ip acro ss the top of the two cab inet , an d two long sid e cro ss- memb er angl es whi ch brid ge the mou nting chann els on the botto m of the unit. These unit[...]

  • Page 8

    JOHNSON CONTROLS 8 FORM 145.32-IOM1 (908) SEP ARA TION OF UNITS The 2 through 5 ton units are provided with refrigerant shut-off valves to allow the evaporator and condenser sections to be eld split - without the necessity of re - claiming the entire unit refrigerant charge. The evaporator and condenser sections may be sepa- rated by performing [...]

  • Page 9

    FORM 145.32-IOM1 (908) 9 JOHNSON CONTROLS DIMENSIONAL DA T A[...]

  • Page 10

    JOHNSON CONTROLS 10 FORM 145.32-IOM1 (908) DIMENSIONAL DA T A (Cont.)[...]

  • Page 11

    FORM 145.32-IOM1 (908) 11 JOHNSON CONTROLS DUCTWORK When installing ductwork, adhere to local Codes and sensible practice. Minimize duct runs and avoid abrupt cha nge s in dire ctio n whe re poss ible . Allow amp le acces s space for servicing of the coils and changing of lters. Perform regular maintenance on ducts to increase unit life, maintai[...]

  • Page 12

    JOHNSON CONTROLS 12 FORM 145.32-IOM1 (908) ELECTRICAL WIRING Follow local electrical codes when making electrical co nn ect ion s. Uni ts are co mpl ete ly fac to ry wi red fo r no rma l supply voltages (ie.208-230, 460, 575/3phase/60Hz) Conrm unit specications by checking unit data plate. The factory wiring terminates in two boxes, one in ea[...]

  • Page 13

    FORM 145.32-IOM1 (908) 13 JOHNSON CONTROLS STANDA RD MOT ORS MO DEL VOLTA GE COMPRESSOR E VAP OR ATOR FAN CONDENSER F A N MIN. CCT. "MOP" # QTY RLA LRA HP FLA HP FLA AMP ACIT Y Max Overcurrent Prot. AC024H12 208-230/1/60 1 @ 13.5 58.3 0.25 2.6 0.50 4.5 23.98 35 AC024H32 208-230/3/60 1 @ 8.6 55.0 0.25 1.4 0.50 2.2 14.35 20 AC036H12 208-230[...]

  • Page 14

    JOHNSON CONTROLS 14 FORM 145.32-IOM1 (908) MOTOR AND PULLEY DA T A EVAPORA TOR - STANDARD BLOW ER M OTOR AND DRIVE DATA Belts HP Frame Eff.(%) Pitch Dia.(in) Browning # Pitch Dia.(in) Br owning# Ratin g / Size Qty 2 TON 845-1170 1/4 56 66.0 2.6-3.6 1VP40 X 5/8 5.4 AK56H 4L370 1 3 TON 675-1010 1/3 56 75.0 2.0-3.0 1VP34 X 5/8 5.2 AK54H 4L370 1 4 TON [...]

  • Page 15

    FORM 145.32-IOM1 (908) 15 JOHNSON CONTROLS ST ART -UP AND OPERA TION Prior to starting unit for the rst time, tur n t he th erm os tat sy st em swi tc h t o OFF - or raise the cooling setpoint to the highest temperature, to prevent the unit from starting. Close the electrical dis connec t switc h. This will energ ize the compressor crankcase hea[...]

  • Page 16

    JOHNSON CONTROLS 16 FORM 145.32-IOM1 (908) TYPICAL SCHEMA TIC[...]

  • Page 17

    FORM 145.32-IOM1 (908) 17 JOHNSON CONTROLS MAINTENANCE / SERVICE Disconnect And Lock Out Power When Servicing Unit. Failure T o Do So May Result In Personal Injury Or Death Due T o Electrical Shock. Exercise care when working around the sharp metal edges of door panels or door frames, etc. These edges can cause injury . FIL TERS Inspect lters mo[...]

  • Page 18

    JOHNSON CONTROLS 18 FORM 145.32-IOM1 (908) COMFORT ALERT™ DIAGNOSTICS The Comfort Alert diagnostics module is a brea kthrough innovation for troubleshooting and protecting three phase Copeland Scroll® compressors. The module installs easily in the electrical box of the condensing unit near the compressor contactor . By monitoring and analyzing d[...]

  • Page 19

    FORM 145.32-IOM1 (908) 19 JOHNSON CONTROLS Status LED Status LED Description Status LED Troubleshooting Information Green “POW ER” Module has power Supply vo ltage is present at module terminal s 1. Compressor protector is open 2. Condensing unit pow er disconnect is open 3. Compressor circuit breaker or fuse(s) is open 4. Broken suppl y wire s[...]

  • Page 20

    JOHNSON CONTROLS 20 FORM 145.32-IOM1 (908) Fla sh cod e numb er corr espon ds to a num ber of LED flashes, followed by a pause and then repeated. TRIP and ALERT LED’ s flashing at the same time means control circuit voltage is too low for opera- tion. Resetting Alert Codes Alert codes can be reset manually and automatically . The manual method [...]

  • Page 21

    FORM 145.32-IOM1 (908) 21 JOHNSON CONTROLS Miswiring the Comfort Alert module will cause false LED codes. T able 1 describes LED opera - tion when the module is miswired and what troubleshooting action is required to correct the problem. Installation V erication T o verify the installation of Comfort Alert is correct, a functional test can be pe[...]

  • Page 22

    JOHNSON CONTROLS 22 FORM 145.32-IOM1 (908) LIMITED W ARRANTY ONE YEAR LIMITED W ARRANTY Johnson Controls warrants this product to be free from defects in workmanship or material for a period of one year from date of original installation or 18 months from date of shipment, whichever comes rst. Johnson Controls obligation under this Warranty is L[...]

  • Page 23

    FORM 145.32-IOM1 (908) 23 JOHNSON CONTROLS R-410A QUICK REFERENCE GUIDE  RefertoInstallationInstructionsfor specicinstallationrequir ements . • R-410A Refrigerant operates at 50 - 70 percent higher pressures than R-22. Be sure that servicing equipment and replacement components are designed to operate with R-410A. • R[...]

  • Page 24

    Subject to change without notice. Printed in U.S.A. Copyright © 2008 by Unitary Products Group. All rights reserved. Form 145.32-IOM1 (908) New Release Y ork PA 17405 P .O. Box 1592 Y ork, P A 17405 Engineered Systems Products Group[...]