Manual do usuário Carrier 38AYB

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38YCB(P), 38AYB, 38BYB
Split-System
Heat Pump
Model Specific Instructions
NOTE: Read the entire instruction manual before starting the
installation. Refer to Split-System Heat Pump Common Installa-
tion and Start-Up Practices (included in this packet).
SAFETY CONSIDERATIONS
Improperinstallation,adjustment,alteration,service,maintenance,
C
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury, or property
damage. Consult a qualified install

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AIR DISCHARGE VALVE FITTING FERRULE FIELD POWER SUPPLY CONN 7 ⁄ ″ DIA HOLE WITH 8 1 1 ⁄ ″ DIA KNOCKOUT 8 3 AND 1 ⁄ ″ DIA 8 KNOCKOUT FIELD CONTROL LOCK NUT SUPPLY CONN 7 ⁄ ″ DIA HOLE 8 SUCTION LINE CONN A92120 LIQUID LINE CONN Fig. 4—Suction Service Valve with Mechanical A93578 Adapter (38YCP Model) LIQUID TUBE VAPOR TUBE UNIT SIZE FERRULE LOCK NUT Conn Dia Tube Dia Conn Dia Tube Dia 018, 024 3/8 3/8 5/8 5/8 030, 036 3/8 3/8 3/4 3/4 042, 048 3/8 3/8 7/8 7/8 060 3/8 3/8 7/8 1-1/8 Tube

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NOTE: A thermostatic expansion valve (TXV) is required on all 10 O'CLOCK 38BYB units. Step 4 refers to the installation of the TXV. 2 O'CLOCK SENSING BULB Step 4—Remove Indoor AccuRater® Piston and Install TXV STRAP For proper unit operation and reliability, units must be installed with a field-supplied hard shut-off TXV. Do not SUCTION TUBE install with evaporator coils having capillary tube metering 8 O'CLOCK 4 O'CLOCK devices or piston. 7 7 LARGER THAN ⁄ IN. OD ⁄ IN. OD & SMALLER 8

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SERVICE TRAINING Packaged Service Training programs are an excellent way to increase your knowledge of the equipment discussed in this manual, including: • Unit Familiarization • Maintenance • Installation Overview • Operating Sequence A large selection of product, theory, and skills programs is available, using popular video-based formats and materials. All include video and/or slides, plus companion book. Classroom Service Training plus "hands-on" the products in our labs can mean