Rheem RACA14 Series Installation Instructions Manual

Rheem RACA14 Series Installation Instructions Manual

Package air conditioners featuring earth-friendly r-410a refrigerant

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INSTALLATION INSTRUCTIONS
PACKAGE AIR CONDITIONERS
FEATURING EARTH-FRIENDLY R-410A REFRIGERANT:
RACA14 - 14 SEER (2-5 TONS)
RACA15 - 15 SEER (2-5 TONS)
(14 SEER AND ABOVE)
!
!
ISO 9001:2008
ISO 9001:2000
92-21916-72-04
[ ] INDICATES METRIC CONVERSIONS

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Summary of Contents for Rheem RACA14 Series

  • Page 1 INSTALLATION INSTRUCTIONS PACKAGE AIR CONDITIONERS FEATURING EARTH-FRIENDLY R-410A REFRIGERANT: RACA14 - 14 SEER (2-5 TONS) RACA15 - 15 SEER (2-5 TONS) (14 SEER AND ABOVE) ISO 9001:2008 ISO 9001:2000 92-21916-72-04 [ ] INDICATES METRIC CONVERSIONS...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS I. Safety Information..........3 II.
  • Page 3: Safety Information

    I. SAFETY INFORMATION WARNING PROPOSITION 65: THIS APPLIANCE CONTAINS FIBERGLASS INSULATION. RESPIRABLE PARTICLES OF FIBERGLASS ARE KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER. WARNING THE MANUFACTURER’S WARRANTY DOES NOT COVER ANY DAMAGE OR DEFECT TO THE AIR CONDITIONER CAUSED BY THE ATTACHMENT OR USE OF ANY COMPONENTS, ACCESSORIES OR DEVICES (OTHER THAN THOSE AUTHORIZED BY THE MANUFACTURER) INTO, ONTO OR IN CONJUNC- TION WITH THE AIR CONDITIONER.
  • Page 4: Introduction

    II. INTRODUCTION WARNING This booklet contains the installation and operating instructions for your self-contained IMPORTANT: ALL MANUFACTUR- air conditioner. There are a few precautions that should be taken to derive maximum ER PRODUCTS MEET CURRENT satisfaction from it. Improper installation can result in unsatisfactory operation or danger- FEDERAL OSHA GUIDELINES ous conditions.
  • Page 5: Quick Reference Guide For R-410A

    2. Quick Reference Guide For R-410A WARNING • R-410A refrigerant operates at approximately 60% higher pressure (1.6 times) than THE MANUFACTURER’S WAR- R-22. Ensure that servicing equipment is designed to operate with R-410A. RANTY DOES NOT COVER ANY • R-410A refrigerant cylinders are pink. DAMAGE OR DEFECT TO THE AIR CONDITIONER CAUSED BY THE •...
  • Page 6: High Pressure Control

    When an abnormal system condition occurs, the Comfort Alert module displays the appropriate ALERT and/or TRIP LED. The yellow ALERT LED will flash a number of times consecutively, pause and then repeat the process. To identify a Flash Code number, count the number of consecutive flashes. IMPORTANT: Every time the module powers up, the last ALERT Flash Code that occurred prior to shut down is displayed for one minute.
  • Page 7 Active protection occurs under the following conditions: 1) Flash Code 2 - System Pressure Trip Condition: Four consecutive compressor protector trips occur where the average run time until trip is between 1 minute and 15 minutes Possible causes: Low suction pressure •...
  • Page 8: Equipment Protection

    V. EQUIPMENT PROTECTION (Corrosive Environment) The metal parts of this unit may be subject to rust or deterioration if exposed to a cor- rosive environment. This oxidation could shorten the equipment’s useful life. Corrosive elements include, but are not limited to, salt spray, fog or mist in seacoast areas, sulphur or chlorine from lawn watering systems, and various chemical contaminants from indus- tries such as paper mills and petroleum refineries.
  • Page 9: Unit Dimensions

    FIGURE 3 UNIT DIMENSIONS 30% ± 2% TOP COVER THERMOSTAT WIRING ENTRANCE 21% ± 2% 29% ± 2% 20% ± 2% CORNER WEIGHTS ELECTRICAL % OF TOTAL UNIT POWER WEIGHT SIDE RETURN ENTRANCE DUCT OPENING BLOWER/ EVAPORATOR SIDE SUPPLY ACCESS PANEL DUCT OPENING OUTDOOR FAN GRILLE AND COMPRESSOR ACCESS...
  • Page 10 BOTTOM VIEW FIGURE 3 (continued) UNIT DIMENSIONS ⁄ INSIDE TOP VIEW ⁄ TYP. ⁄ ⁄ TYP. BOTTOM RETURN OUTDOOR DUCT FAN GRILLE OPENING COMPRESSOR ACCESS ⁄ INSIDE BOTTOM SUPPLY DUCT ⁄ ⁄ OPENING TYP. ⁄ ⁄ ⁄ ⁄ ⁄ SIDE VIEW THERMOSTAT SIDE VIEW FILTER ACCESS...
  • Page 11: Installation

    VI. INSTALLATION A. GENERAL 1. PRE-INSTALLATION CHECK-POINTS Before attempting any installation, the following points should be carefully consid- ered: 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 12 FIGURE 4 FIGURE 5 PACKAGE AIR CONDITIONER – OUTSIDE SLAB INSTALLATION, PACKAGE AIR CONDITIONER – OUTSIDE SLAB INSTALLATION, BASEMENT OR CRAWL SPACE DISTRIBUTION SYSTEM. CLOSET DISTRIBUTION SYSTEM. SLAB FLOOR CONSTRUCTION. SUPPLY DUCT AT CLOSET CEILING FILTER GRILL 60( OVERHEAD CLEARANCE BRANCH CIRCUIT DISCONNECT...
  • Page 13: Ductwork

    FIGURE 5 FIGURE 7 ROOFCURB INSTALLATION ROOFCURB INSTALLATION FIGURE 5 ROOFCURB INSTALLATION ** BY CONTRACTOR ** FOR INSTALLATION OF DUCT AS SHOWN, USE RECOMMENDED DUCT SIZES FROM ROOFCURB INSTALLATION INSTRUCTIONS. FOR DUCT FLANGE ATTACHMENT TO UNIT, SEE UNIT INSTALLATION INSTRUCTIONS FOR RECOMMENDED DUCT SIZES. I271 VI.
  • Page 14: Filters

    FIGURE 8 PACKAGE AIR CONDITIONER FLAT ROOFTOP INSTALLATION, ATTIC OR DROP CEILING DISTRIBUTION SYSTEM. MOUNTED ON ROOFCURB, CURB MUST BE LEVEL. SERVICE ACCESS PANELS. DO NOT BLOCK ACCESS CONDENSATE INTO ROOFDRAIN IF REQ’D THERMO- BY LOCAL CODES. STAT WIRE CONDUIT BRANCH CIRCUIT DISCONNECT POWER...
  • Page 15: Conversion Procedure

    FIGURE 10 COVER GASKET DETAIL INSULATED DUCT COVER I321 OVERLAP 1 PIECE ⁄ INSULATION ” IX. CONVERSION PROCEDURE 1. HORIZONTAL TO DOWNFLOW a. Remove screws and covers from the downflow supply and return sections. Both covers are accessible from the inside of the unit. b.
  • Page 16: Electrical Wiring

    XI. ELECTRICAL WIRING Field wiring must comply with the National Electrical Code* and local ordinances that may apply. *C.E.C. in Canada WARNING TURN OFF THE MAIN ELECTRICAL POWER AT THE BRANCH CIRCUIT DISCONNECT CLOSEST TO THE UNIT BEFORE ATTEMPTING ANY WIRING. FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR DEATH.
  • Page 17: Control Wiring

    Alcoa, No. 2EJC; T&B KPOR Shield. c. Clean and recoat aluminum conductor with inhibitor. d. Make the splice using the above listed wire nuts or split bolt connectors. e. Coat the entire connection with inhibitor and wrap with electrical insulating tape. WARRANTY MAY NOT APPLY IF CONNECTIONS ARE NOT MADE PER INSTRUCTIONS.
  • Page 18: Thermostat

    F. THERMOSTAT The thermostat should be mounted on an inside wall about five feet above the floor in a location where it will not be affected by unconditioned air, sun, or drafts from open doors or other sources. READ installation instructions in thermostat package CAREFULLY because each has some different wiring requirements.
  • Page 19: Operation

    8. Check the refrigerant charge using the instructions located on control box cover. Replace service port caps. Service port cores are for system access only and will leak if not tightly capped. 9. Turn thermostat system switch to proper mode “HEAT” or “COOL” and set thermo- stat to proper temperature setting.
  • Page 20: Blower Motor Speed Taps

    XVIII. BLOWER MOTOR SPEED TAPS Note: These instructions to be used in conjunction with airflow tables. After determining necessary CFM and speed tap, follow the steps below to change speeds. Units with PSC Blower Motors: 1. Remove blower access panel. 2.
  • Page 21 XIX. GENERAL DATA - RACA14 MODELS NOMINAL SIZES 2-5 TONS [7-17.6 kW] Model RACA14 Series 024AJD***AA 024AJT***AA 024BJT***AA 030AJD***AA Cooling Performance1 Continued -> Gross Cooling Capacity Btu [kW] 24,500 [7.18] 24,500 [7.18] 24,500 [7.18] 29,100 [8.53] EER/SEER2 11/14 11/14 11/14...
  • Page 22: General Data

    GENERAL DATA - RACA14 MODELS NOMINAL SIZES 2-5 TONS [7-17.6 kW] Model RACA14 Series 030BJT***AA 036ACD***AA 036AJD***AA 036BCT***AA Cooling Performance1 Continued -> Gross Cooling Capacity Btu [kW] 29,100 [8.53] 34,900 [10.23] 34,900 [10.23] 34,900 [10.23] EER/SEER2 11/14 11/14 11/14 11/14...
  • Page 23 GENERAL DATA - RACA14 MODELS NOMINAL SIZES 2-5 TONS [7-17.6 kW] Model RACA14 Series 036BJT***AA 042ACT***AA 042AJT***AA 048ACT***AA Cooling Performance1 Continued -> Gross Cooling Capacity Btu [kW] 34,900 [10.23] 40,100 [11.75] 40,100 [11.75] 46,000 [13.48] EER/SEER2 11/14 11/14 11/14 11/14...
  • Page 24 GENERAL DATA - RACA14 MODELS NOMINAL SIZES 2-5 TONS [7-17.6 kW] Model RACA14 Series 048AJT***AA 048BCT***AA 048BJT***AA 060ACT***AA Cooling Performance1 Continued -> Gross Cooling Capacity Btu [kW] 46,000 [13.48] 46,000 [13.48] 46,000 [13.48] 56,400 [16.53] EER/SEER2 11/14 11/14 11/14 11/14...
  • Page 25 GENERAL DATA - RACA14 MODELS NOMINAL SIZES 2-5 TONS [7-17.6 kW] Model RACA14 Series 060AJT***AA Cooling Performance1 Gross Cooling Capacity Btu [kW] 56,400 [16.53] EER/SEER2 11/14 Nominal CFM/AHRI Rated CFM [L/s] 2000/1700 [944/802] AHRI Net Cooling Capacity Btu [kW] 54,500 [15.97] Net Sensible Capacity Btu [kW] 38,150 [11.18]...
  • Page 26 GENERAL DATA - RACA15 MODELS Page   1   o f   3 NOMINAL SIZES 2-5 TONS [7-17.6 kW] Model RACA15 Series 024AJT***AA 030AJT***AA 036ACT***AA 036AJT***AA Cooling Performance Continued -> Gross Cooling Capacity Btu [kW] 24,600 [7.21] 29,600 [8.67] 36,000 [10.55] 36,000 [10.55] EER/SEER...
  • Page 27 GENERAL DATA - RACA15 MODELS Page   2   o f   3 NOMINAL SIZES 2-5 TONS [7-17.6 kW] Model RACA15 Series 042ACT***AA 042AJT***AA 048ACT***AA 048AJT***AA Cooling Performance Continued -> Gross Cooling Capacity Btu [kW] 41,000 [12.01] 41,000 [12.01] 47,500 [13.92] 47,500 [13.92] EER/SEER...
  • Page 28 GENERAL DATA - RACA15 MODELS Page   3   o f   3 NOMINAL SIZES 2-5 TONS [7-17.6 kW] Model RACA15 Series 060ACT***AA 060AJT***AA Cooling Performance Gross Cooling Capacity (2nd Stage) Btu [kW] 59,500 [17.43] 59,500 [17.43] SEER EER (1st stage / 2nd stage) 20.9/11.4 20.9/11.4 AHRI Rated CFM (1st / 2nd stage) [L/s]...
  • Page 29: Electrical Data

    XX. ELECTRICAL DATA ELECTRICAL DATA - RACA14 SERIES 024AJD***AA 024AJT***AA 024BJT***AA 030AJD***AA 030BJT***AA 036ACD***AA 036AJD***AA 036BCT***AA 036BJT***AA Unit Operating Voltage Range 187-253 187-253 187-253 187-253 187-253 187-253 187-253 187-253 187-253 Volts 208/230 208/230 208/230 208/230 208/230 208/230 208/230 208/230 208/230...
  • Page 30 Page   1   o f   1 ELECTRICAL DATA - RACA15 SERIES 024AJT***AA 030AJT***AA 036ACT***AA 036AJT***AA 042ACT***AA 042AJT***AA 048ACT***AA 048AJT***AA 060ACT***AA Unit Operating Voltage Range 187-253 187-253 187-253 187-253 187-253 187-253 187-253 187-253 197-253 Volts 208/230 208/230 208/230 208/230 208/230 208/230...
  • Page 31: Airflow Performance

    XXI. AIRFLOW PERFORMANCE INDOOR AIRFLOW PERFORMANCE FOR 2-5 TON PACKAGE AIR CONDITIONER: RACA- DIRECT DRIVE...
  • Page 32 INDOOR AIRFLOW PERFORMANCE FOR 2-5 TON PACKAGE AIR CONDITIONER: RACA- DIRECT DRIVE...
  • Page 33 INDOOR AIRFLOW PERFORMANCE FOR 2-5 TON PACKAGE AIR CONDITIONER: RACA- DIRECT DRIVE...
  • Page 34: Heater Kits Characteristics

    Over Current Rated Protective Device Protective Device RXQJ- Heater Heater Unit Min. Min. No. of Heater Min. Ckt. Max. RHEEM Model Number Size Size Heater Kit KBTU/Hr Amp. @ Ckt. Am- Circuit Sequence kW @ Ampacity Fuse Size Nominal @ 208/240...
  • Page 35 Over Current Rated Unit Min. Protective Device Protective Device RXQJ- Min. No. of Heater Heater Heater Ckt. Min. Ckt. Max. RHEEM Model Number Size Size Heater Kit Circuit Sequence kW @ KBTU/Hr @ Amp. @ Ampac- Ampacity Fuse Size Nominal Ampacity Min./...
  • Page 36 Over Current Rated Unit Min. Protective Device Protective Device RXQJ- Heater Heater Min. No. of Heater Ckt. Min. Ckt. Max. RHEEM Model Number Size Size Heater Kit KBTU/Hr Amp. @ Circuit Sequence kW @ Ampacity Ampacity Fuse Size Nominal @ 208/240...
  • Page 37: Wiring Diagrams

    XXIII. WIRING DIAGRAMS FIGURE 13 WIRING DIAGRAM...
  • Page 38 FIGURE 14 WIRING DIAGRAM...
  • Page 39 FIGURE 15 WIRING DIAGRAM...
  • Page 40 FIGURE 16 WIRING DIAGRAM...
  • Page 41 FIGURE 17 WIRING DIAGRAM...
  • Page 42 FIGURE 18 WIRING DIAGRAM...
  • Page 43: Charge Charts

    XXIV. CHARGE CHARTS FIGURE 19 SYSTEM CHARGE CHARTS RACA 14 – 5 TON COOLING SYSTEM CHARGE CHART - REFRIGERANT 410A...
  • Page 44 FIGURE 20 SYSTEM CHARGE CHARTS RACA 14 & 15 – 2 TON COOLING SYSTEM CHARGE CHART - REFRIGERANT 410A...
  • Page 45 FIGURE 21 SYSTEM CHARGE CHARTS RACA 14 & 15 – 2.5 TON COOLING SYSTEM CHARGE CHART - REFRIGERANT 410A...
  • Page 46 FIGURE 22 SYSTEM CHARGE CHARTS RACA 14 & 15 – 3 TON COOLING SYSTEM CHARGE CHART - REFRIGERANT 410A...
  • Page 47 FIGURE 23 SYSTEM CHARGE CHARTS RACA 14 & 15 – 3.5 TON COOLING SYSTEM CHARGE CHART - REFRIGERANT 410A...
  • Page 48 FIGURE 24 SYSTEM CHARGE CHARTS RACA 14 & 15 – 4 TON COOLING SYSTEM CHARGE CHART - REFRIGERANT 410A...
  • Page 49 FIGURE 25 SYSTEM CHARGE CHARTS RACA 15 – 5 TON COOLING SYSTEM CHARGE CHART - REFRIGERANT 410A...
  • Page 50: Troubleshooting

    XXV. TROUBLESHOOTING 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 51: Comfort Alert Diagnostic Charts

    FIGURE 26 COMFORT ALERT DIAGNOSIS CHART SINGLE PHASE UNIT Status LED Status LED Description Status LED Troubleshooting Information Green “POWER” Module has power Supply voltage is present at module terminals Red “TRIP” Thermostat demand signal 1. Compressor internal overload is open Y1 is present, but the 2.
  • Page 52 FIGURE 27 COMFORT ALERT DIAGNOSIS CHART THREE PHASE UNIT Status LED Status LED Description Status LED Troubleshooting Information Green “POWER” Module has power Supply voltage is present at module terminals Red “TRIP” Thermostat demand signal 1. Compressor internal overload is open Y1 is present, but the 2.
  • Page 55 CM 0914...

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Raca15 series

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