Carrier AIR CONDITIONING UNIT 38TRA manual

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Table of contents for the manual

  • Page 1

    38TRA Air Conditioning Unit Installation and Start-Up Instructions NOTE: Read the entire instruction manual before starting the installation. SAFETY CONSIDERATIONS Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause personal injury or property d[...]

  • Page 2

    DO NOT BURY MORE THAN 36 IN. OF REFRIGERANT TUBING IN GROUND. If any section of tubing is buried, there must be a 6-in. vertical rise to the valve connections on the outdoor unit. If more than the recommended length is buried, refrigerant may migrate to cooler buried section during extended periods of unit shutdown, causing refrigerant slugging and[...]

  • Page 3

    connected by 15 ft of field-supplied or factory-accessory tubing. Check refrigerant charge for maximum efficiency. (See Step 8—Checking Charge.) INSTALL SOLENOID VALVE IN LIQUID TUBE Solenoid valve must be energized during evacuation for effective evacuation. Before making liquid tube connections, install factory-supplied solenoid valve on indoor[...]

  • Page 4

    bearing brazing material. Consult local code requirements. Refrig- erant tubing and indoor coil are now ready for leak testing. This check should include all field and factory joints. Step 5—Make Electrical Connections Be sure field wiring complies with local and national fire, safety, and electrical codes, and voltage to system is within limits [...]

  • Page 5

    Fig. 6—24-V Control Circuit Connector A93199 4 4 RH R Y G A W LLS NC TRANS MIN 60VA TO IFM LINE VOLTAGE POWER SUPPLY IFR C C BLU BRN Y COND UNIT THERMOSTAT SUBASE RC B Y 1 Y 2 G W 1 W 2 LEAVE JUMPER ON SUBASE (RH TO RC) LLS NC TRANS SEE NOTE 2 TO IFM LINE VOLTAGE POWER SUPPLY C BLU BRN HC 1 HC 2 ADD JUMPER R Y G A[...]

  • Page 6

    Copyright 1993 CARRIER Corp. • 7310 W. Morris St. • Indianapolis, IN 46231 33026c Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations. Book 1 4 Tab 3a 2a PC 101 Catalog No. 563-793 Printed in U.S.A. Form 38TRA-3SI Pg 6 1-94 Replaces: 38TRA-2SI[...]