Rheem RLKN-B073 Series Installation Instructions Manual
Rheem RLKN-B073 Series Installation Instructions Manual

Rheem RLKN-B073 Series Installation Instructions Manual

For package air conditioners featuring industry standard r410a refrigerant
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INSTALLATION INSTRUCTIONS
FOR PACKAGE AIR CONDITIONERS FEATURING
INDUSTRY STANDARD R410A REFRIGERANT
RLKN-B073 (6 TON) SERIES
RLKN-C073 (6 TON) SERIES WITH CLEAR CONTROL
(DDC)
TM
WARNING
ACCREDITED
92-23577-158-03
[ ] INDICATES METRIC CONVERSIONS
(SUPERCEDES 92-23577-158-02)

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Summary of Contents for Rheem RLKN-B073 Series

  • Page 1 INSTALLATION INSTRUCTIONS FOR PACKAGE AIR CONDITIONERS FEATURING INDUSTRY STANDARD R410A REFRIGERANT RLKN-B073 (6 TON) SERIES RLKN-C073 (6 TON) SERIES WITH CLEAR CONTROL (DDC) WARNING ACCREDITED 92-23577-158-03 [ ] INDICATES METRIC CONVERSIONS (SUPERCEDES 92-23577-158-02)
  • Page 2: Table Of Contents

    I. TABLE OF CONTENTS I. Table of Contents ................2 II. Introduction ..................3 III. Checking Product Received ..............3 IV. Equipment Protection ................3 V. Specifications ..................3 A. General ................... 3 B. Major Components ................4 C. R-410A Refrigerant ................. 4 1. Specification of R-410A ..............
  • Page 3: Introduction

    II. INTRODUCTION WARNING This booklet contains the installation and operating instructions for your self-contained PROPOSITION 65: THIS APPLIANCE air conditioner. There are a few precautions that should be taken to derive maximum CONTAINS FIBERGLASS INSULA- satisfaction from it. Improper installation can result in unsatisfactory operation or dan- TION.
  • Page 4: Major Components

    B. MAJOR COMPONENTS The unit includes a hermetically-sealed refrigerating system (consisting of a scroll compressor, condenser coil, evaporator coil with thermostatic expansion valve), a circulation air blower, a condenser fan, and all necessary internal electrical wiring. The cooling system of these units is factory-evacuated, charged with R-410A refrigerant and performance tested.
  • Page 5: Unit Dimensions

    FIGURE 1 6 TON MODEL OUTDOOR OUTDOOR COIL FIGURE 2 BACK VIEW [ ] Designates Metric Conversion ST-A1143...
  • Page 6 FIGURE 3 SIDE VIEW ST-A1143 [ ] Designates Metric Conversion FIGURE 4 FRONT VIEW [ ] Designates Metric Conversion ST-A1143...
  • Page 7 FIGURE 5 TOP VIEW TOP VIEW 4-1/2 [660] [114] 4-5/8 2-3/8 [118] 2-5/32 [60] 4.502 [55] [114] RETURN 13-1/8 SUPPLY [333] [508] 43-7/32 [1098] 13-1/8 [333] 2-3/8 77-15/32 2-3/8 [60] [1968] [60] [ ] DESIGNATES METRIC CONVERSIONS ST-A1143...
  • Page 8: Vi. General Data

    VI. GENERAL DATA - RLKN MODELS NOMINAL SIZES 6 TON [21.1 kW] 'ULYH 7 \ $GM XVWDEOH [ ] Designates Metric Conversions NOTES: 1. Cooling Performance is rated at 95° F ambient, 80° F entering dry bulb, 67° F entering wet bulb. Gross capacity does not include the effect of fan motor heat. AHRI rated capacity is net and includes the effect of fan motor heat. Units are suitable for operation to ±20% of nominal cfm. Units are certified in accordance with the Unitary Large Equipment certification program, which is based on AHRI Standard 340/360.
  • Page 9 GENERAL DATA - RLKN MODELS NOMINAL SIZES 6 TON [21.1 kW] *URVV &RROLQ J &DSDFLW \ %WX >N: @ [ ] Designates Metric Conversions NOTES: 1. Cooling Performance is rated at 95° F ambient, 80° F entering dry bulb, 67° F entering wet bulb. Gross capacity does not include the effect of fan motor heat. AHRI rated capacity is net and includes the effect of fan motor heat. Units are suitable for operation to ±20% of nominal cfm. Units are certified in accordance with the Unitary Large Equipment certification program, which is based on AHRI Standard 340/360.
  • Page 10: Installation

    VIII. INSTALLATION A. GENERAL 1. PRE-INSTALLATION CHECK-POINTS Before attempting any installation, the following points should be carefully con- sidered: 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 11 FIGURE 8 PACKAGED AIR CONDITIONER RIGGING FOR LIFTING CORNER WEIGHTS BY PERCENTAGE ILL I296 FIGURE 9 PACKAGED AIR CONDITIONER ROOFCURB INSTALLATION ILL I301 ILL I300...
  • Page 12: Clearances

    C. CLEARANCES WARNING The following minimum clearances must be observed for proper unit performance and serviceability. DO NOT, UNDER ANY CIRCUM- 1. Unit is design certified for application on combustible flooring with 0” minimum STANCES, CONNECT RETURN clearance. DUCTWORK TO ANY OTHER HEAT PRODUCING DEVICE SUCH AS A 2. See Figure 6 for illustration of minimum installation-service clearances. FIREPLACE INSERT, STOVE, ETC.
  • Page 13: Filters

    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. Noncombustible flexible connectors should be used between ductwork and unit to reduce noise and vibration transmission into the ductwork. 2. When auxiliary heaters are installed, use noncombustible flexible connectors and clearance to combustible material of 0” for the first 3 feet of discharge duct.
  • Page 14: Electrical Wiring

    FIGURE 12 CONDENSATE DRAIN DO NOT OVERTIGHTEN DRAIN FITTING XIII. ELECTRICAL WIRING Field wiring must comply with the National Electrical Code* and local ordinances that may apply. *C.E.C. in Canada A. POWER WIRING 1. It is important that proper electrical power is available at the unit. Voltage should not vary more than 10% from that stamped on the unit rating plate.
  • Page 15: Control Wiring

    3. Splice copper wire pigtails to aluminum wire with U.L. recognized connectors WARNING for copper-aluminum splices. Follow these instructions very carefully to make a positive and lasting connection; THE UNIT MUST BE PERMANENTLY a. Strip insulation from aluminum conductor. GROUNDED. A GROUNDING LUG IS b.
  • Page 16: Thermostat

    FIGURE 14 FIGURE 21 TYPICAL THERMOSTAT WIRING (C073) TYPICAL THERMOSTAT WIRING CLEAR CONTROL (DDC) MODELS RTU-C BOARD LOW VOLTAGE THERMOSTAT CONNECTIONS R Y1 Y2 G C W1 W2 OC B R Y1 Y2 G C ST-A1125-42-00 FIGURE 15 RECOMMENDED LOCATION OF BRANCH CIRCUIT DISCONNECT BRANCH CIRCUIT DISCONNECT...
  • Page 17: Electrical Data

    XIV. ELECTRICAL DATA...
  • Page 18: Electric Heater Kits

    XV. ELECTRIC HEATER KITS...
  • Page 19 FIGURE 17 HEATER KIT INSTALLATION ILL I312...
  • Page 21: Indoor Air Flow Data

    XVII. INDOOR AIR FLOW DATA Belt-drive blower models have motor sheaves set for proper CFM at a typical external static. See tables for blower performance. XVIII. CRANKCASE HEAT (OPTIONAL) Crankcase heat is not required on scroll type compressors, but may be necessary for certain situations.
  • Page 22: Operation

    XXI. OPERATION IMPORTANT: The compressor has an internal overload protector. Under some condi- tions, it can take up to 2 hours for this overload to reset. Make sure overload has had time to reset before condemning the compressor. CONTROL SYSTEM OPERATION 1.
  • Page 23: Troubleshooting Chart

    XXV. TROUBLESHOOTING 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 24: Wiring Diagrams

    XXVI. WIRING DIAGRAMS Refer to the appropriate wiring diagram included in this manual. FIGURE 19 WIRING DIAGRAM...
  • Page 25 FIGURE 20 WIRING DIAGRAM...
  • Page 26 FIGURE 21 WIRING DIAGRAM - DDC...
  • Page 27 FIGURE 21 WIRING DIAGRAM - DDC...
  • Page 28 CM 0218...

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Rlkn-c073 series

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