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Rheem Air Conditioners Installation Instructions Manual

Package air conditioner 15, 20 & 25 ton
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Installation Instructions
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Thermostat
15
Operation
19
Troubleshooting

INSTALLATION INSTRUCTIONS

FOR PACKAGE AIR CONDITIONERS
NOMINAL 15, 20 & 25 TON (-)LKB MODELS
AND 15 & 20 TON (-)LMB MODELS
!
Recognize this symbol as an indication of Important Safety Information!
DO NOT DESTROY. PLEASE READ CAREFULLY AND
KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.
WARNING
!
THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALI-
FIED, LICENSED SERVICE PERSONNEL FOR PROPER INSTALLA-
TION, ADJUSTMENT AND OPERATION OF THIS UNIT. READ
THESE INSTRUCTIONS THOROUGHLY BEFORE ATTEMPTING
INSTALLATION OR OPERATION. FAILURE TO FOLLOW THESE
INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION,
ADJUSTMENT, SERVICE OR MAINTENANCE POSSIBLY RESULT-
ING IN FIRE, ELECTRICAL SHOCK, PROPERTY DAMAGE, PER-
SONAL INJURY OR DEATH.
92-23577-58-01
SUPERSEDES 92-23577-58-00

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  Summary of Contents for Rheem Air Conditioners

  • Page 1: Installation Instructions

    INSTALLATION INSTRUCTIONS FOR PACKAGE AIR CONDITIONERS NOMINAL 15, 20 & 25 TON (-)LKB MODELS AND 15 & 20 TON (-)LMB MODELS Recognize this symbol as an indication of Important Safety Information! DO NOT DESTROY. PLEASE READ CAREFULLY AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE.

  • Page 2: Table Of Contents

    MAY ADVERSELY AFFECT THE OPERATION OF THE AIR I. TABLE OF CONTENTS CONDITIONER AND MAY ALSO ENDANGER LIFE AND I. Table of Contents ......2 PROPERTY.
  • Page 3 FIGURE 1. UNIT DIMENSIONS (BOTTOM VIEW) A0886-16 FIGURE 2. UNIT DIMENSIONS (BOTTOM VIEW) A0886-20...

  • Page 4: Unit Dimensions

    FIGURE 3. UNIT DIMENSIONS A0886-17 FIGURE 4. UNIT DIMENSIONS A0886-21 FIGURE 5. COMPONENT LOCATION A0886-33...
  • Page 5 FIGURE 6. UNIT DIMENSIONS & COM- PONENT ACCESS A0886-18 FIGURE 7. UNIT DIMENSIONS & COMPONENT ACCESS A0886-19 FIGURE 8. INTERNAL COMPONENT LOCATIONS A0886-32...

  • Page 6: Electrical & Physical Data Tables

    TABLE A. ELECTRICAL DATA (-)LKB MODELS ELECTRICAL MODEL FULL LOAD FUSE OR HACR PHASE COMPRESSOR NUMBER MINIMUM AMPERES CIRCUIT FREQUENCY LOCKED CIRCUIT RATED LOAD (FLA) BREAKER (HZ) ROTOR AMPACITY AMPERES (-)LKB VOLTAGE AMPERES BLWR MIN. MAX. AMPERES (RLA) (VOLTS) (LRA) AMPS AMPS A180CL...
  • Page 7 TABLE C. ELECTRICAL DATA (-)LMB MODELS ELECTRICAL COMPRESSOR FULL LOAD FUSE OR HACR PHASE MINIMUM MODEL AMPERES CIRCUIT FREQUENCY LOCKED CIRCUIT NUMBER RATED LOAD (FLA) BREAKER (HZ) ROTOR AMPACITY AMPERES VOLTAGE AMPERES BLWR MIN. MAX. AMPERES (-)LMB (RLA) (VOLTS) (LRA) AMPS AMPS A180CL...

  • Page 8: Installation

    V. INSTALLATION A. GENERAL 1. PRE-INSTALLATION CHECK-POINTS Before attempting any installation, the following points should be carefully considered: a. Structural strength of supporting members. (rooftop installation) b. Clearances and provision for servicing. c. Power supply and wiring. d. Air duct connections. e.

  • Page 9: Rooftop Installation

    D. ROOFTOP INSTALLATION 1. Before locating the unit on the roof, make sure that the strength of the roof and beams is adequate at that point to support the weight involved. This is very important and user’s responsibility. 2. For rigging and roofcurb details, see Figures 11 and 12. Use field-furnished spreaders.

  • Page 10: Ductwork

    rier. One-half to 1" thickness of insulation is usually sufficient for ductwork inside the air conditioned space. Balancing dampers should be provided for each branch duct in the supply system. Ductwork should be properly supported from the structure. When installing ductwork, consider the following items: 1.

  • Page 11: Condensate Drain, Indoor Coil

    IX. CONDENSATE DRAIN The condensate drain connection of the evaporator is 1" nomi- nal male pipe thread. IMPORTANT: Install a condensate trap to ensure proper condensate drainage. See Figure 15. A0886-24 FIGURE 16. BRANCH CIRCUIT DISCONNECT FIGURE 15. CONDENSATE DRAIN LOCATION ELECTRICAL WIRING e.

  • Page 12: Grounding

    A0823-01 FIGURE 17. THERMOSTAT CONNECTIONS DIAGRAMS A0886-34 FIGURE 18 E. GROUNDING A0886-32 WARNING FIGURE 19 THE UNIT MUST BE PERMANENTLY GROUNDED. A or other sources. READ installation instructions in heat GROUNDING LUG IS PROVIDED IN THE ELECTRIC pump thermostat package CAREFULLY because each has HEAT ACCESS AREA FOR A GROUND WIRE.
  • Page 13 AIR-FLOW PERFORMANCE – 15 TON MODELS TABLE E 15 TON PACKAGE UNIT - 60 Hz E.S.P. - Inches of Water WATTS WATTS RPM WATTS RPM WATTS WATTS RPM WATTS RPM WATTS RPM WATTS WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS WATTS RPM WATTS...
  • Page 14 TABLE F. AIR-FLOW DATA 20 & 25 TON MODELS 20 TON PACKAGE UNIT - 60 Hz E.S.P. - Inches of Water WATTS WATTS RPM WATTS RPM WATTS WATTS RPM WATTS RPM WATTS RPM WATTS WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS RPM WATTS WATTS RPM WATTS...

  • Page 15: Pre-Start Check

    XIII. PRE-START CHECK XV. OPERATION 1. Is unit properly located and slightly slanted toward indoor COOLING MODE condensate drain? 2. Is ductwork insulated, weatherproofed, with proper spacing With thermostat in the cool mode, fan auto and the room tem- to combustible materials? perature higher than the thermostat setting: 3.

  • Page 16: Heater Kit Characteristics

    VII. HEATER KIT CHARACTERISTICS TABLE G. AUXILIARY HEATER KITS CHARACTERISTICS AND APPLICATION (15, 20 & 25 TON MODELS) MAX. FUSE UNIT OR CKT. BKR. MODEL HEATER KIT HEATER KIT UNIT MIN. CKT. SIZE (CKT. BKR. NUMBER MODEL NO. HEATER KW AMPACITY MUST BE (-)LKB-...
  • Page 17 VII. HEATER KIT CHARACTERISTICS TABLE G (CONTINUED). AUXILIARY HEATER KITS CHARACTERISTICS AND APPLICATION TABLE G (CONTINUED). (15, 20 & 25 TON MODELS) MAX. FUSE UNIT OR CKT. BKR. MODEL HEATER KIT HEATER KIT UNIT MIN. CKT. SIZE (CKT. BKR. NUMBER MODEL NO.
  • Page 18 VII. HEATER KIT CHARACTERISTICS TABLE G (CONTINUED). AUXILIARY HEATER KITS CHARACTERISTICS AND APPLICATION TABLE G (CONTINUED). (15, 20 & 25 TON MODELS) MAX. FUSE UNIT OR CKT. BKR. MODEL HEATER KIT HEATER KIT UNIT MIN. CKT. SIZE (CKT. BKR. NUMBER MODEL NO.

  • Page 19: Troubleshooting

    TROUBLE SHOOTING CHART WARNING DISCONNECT ALL POWER TO UNIT BEFORE SERVICING. CONTACTOR MAY BREAK ONLY ONE SIDE. FAILURE TO SHUT OFF POWER CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR DEATH. SYMPTOM POSSIBLE CAUSE REMEDY Unit will not run •...

  • Page 28: Warranty

    City/State/Zip Code Model Number Serial Number Date of Original Installation KEEP THIS WARRANTY FOR YOUR RECORDS. DO NOT MAIL. RHEEM AIR CONDITIONING DIVISION A Division of Rheem Manufacturing Company P.O. Box 17010, 5600 Old Greenwood Road, Fort Smith, Arkansas 72917-7010...

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