Table of Contents
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Table of Contents
Related Manuals for Carrier 38GL2M12G
Summary of Contents for Carrier 38GL2M12G
- Page 1 38GL_M…G / 38YY(S)_M…G INSTALLATION MANUAL...
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Page 2: Table Of Contents
• Never open system to atmosphere while it is under vacuum. • When the system must be opened for service, break vacuum with dry nitrogen and replace filter driers. • Do not vent R-410A into the atmosphere. • Use only Carrier matching indoor units (Table I). GB - 1... -
Page 3: Dimensions And Weight
Ø 8,5 38GL2M12G 38GL2M18G 38GL3M30G 38GL2M36G 38YY(S)2M36G 38GL2M24G 38GL4M24G 38GL2M48G 38YY(S)2M48G 38YY2M21G 38GL3M21G 38YY2M18G 38YY2M24G Cooling only 38GL2M12G 38GL2M18G 38GL2M24G 38GL3M21G 38GL3M30G 38GL4M24G 38GL2M36G 38GL2M48G models 1264 1264 Heat pump 38YY(S)2M36G 38YY(S)2M48G 38YY2M18G 38YY2M21G 38YY2M24G models 1264 1264 GB - 2... -
Page 4: Minimum Clearances
38GL_M…G / 38YY(S)_M…G Minimum clearances and connections E N G L I S H Minimum clearances 38GL2M18G 38GL2M36G 38GL2M24G 38GL2M48G Models 38GL3M21G 38YY2M21G 38GL2M12G 38GL3M30G 38YY2M24G 38GL4M24G 38YY(S)2M36G 38YY2M18G 38YY(S)2M48G Connections 38GL2M12G 38GL2M18G 38GL3M21G 38GL3M30G 38GL4M24G 38GL2M24G 38YY2M18G 38GL2M36G 38YY2M21G... -
Page 5: Connections
38GL_M…G / 38YY(S)_M…G Connections Pipe diameter Pipe diameter Model Liquid Model Liquid 38GL Indoor (Liquid) (Suction) 38YY(S) Indoor (Liquid) (Suction) unit (inches) (inches) unit (inches) (inches) 6.35 (1/4") 9.52 (3/8") 6.35 (1/4") 9.52 (3/8") 2M18G 2M12G 6.35 (1/4") 9.52 (3/8") 6.35 (1/4") 12.70... -
Page 6: Operating Limits
Table III: Operating limits Outdoor temperature °C Indoor temperature °C Cooling (2) Applicable d.b. w.b. d.b. w.b. – All multisplit units Maximum conditions 38GL2M12G – 38GL2M18G; 38GL2M24G; 38GL3M21G 38GL3M30G; 38GL4M24G Minimum conditions – 38GL2M36G ; 38GL2M48G 38YY2M18G; 38YY2M36G;38YY2M48G; 38YY2M21G;38YY2M24G. –... -
Page 7: General Information
Carrier. Consult factory or a qualified system engineer prior to connecting this unit to any other manufacturer's indoor unit. Coupling units which have different control systems, may cause irreversible damage and void the warranty protection. -
Page 8: Warnings: Avoid
38GL_M…G / 38YY(S)_M…G Warnings: avoid..E N G L I S H Disconnecting the refrigerant connections after installation: Excessive height difference between indoor and outdoor unit (see thiis will cause refrigerant leaks. Table II "Connections"). Excessive distance between indoor and Connecting the condensate drain pipe to the outdoor unit. -
Page 9: Refrigerant Connections
38GL_M…G / 38YY(S)_M…G Refrigerant connections No moisture. No dust. Charge liquid-no gas. No leak. No mineral oil. Copper tubes during storage. Neat. 1/2” UNF (R-410A) 7/16” UNF (R-22) Use tools designed for R-410A higher pressure. Keep inside clean. Dry nitrogen brazing. Min. - Page 10 38GL_M…G / 38YY(S)_M…G Refrigerant connections E N G L I S H Flaring the ends of the tubing Remove protective caps from copper tube ends. Position tube end downward, cut the tube to the requested length and remove the burrs with a reamer. Do not leave system open to atmosphere any longer than minimum required for installation.
- Page 11 38GL_M…G / 38YY(S)_M…G Refrigerant connections Three-way valve Needle valve Valve cap Valve needle Two-way valve Allen (hex. head) wrench Gas line (large diameter) Liquid line (small diameter) Flare nut Indoor unit Outdoor unit Vacuum pump Air drain Repeat the air drain procedure for every indoor unit installed. Use only a vacuum pump to purge air from the piping.
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Page 12: Electrical Connections
38GL_M…G / 38YY(S)_M…G Electrical connections E N G L I S H Mod. 38GL2M12G ³ L N N Y ³ L N N L N R C Y R C Y » ¿ L N R C Y R C Y ·... - Page 13 38GL_M…G / 38YY(S)_M…G Electrical connections Mod. 38GL3M21G ³ ³ N N Y N N Y ³ L N R C Y R C Y R C Y N N Y » ¿ L N R C Y R C Y R C Y ·...
- Page 14 38GL_M…G / 38YY(S)_M…G Electrical connections E N G L I S H Mod. 38GL4M24G ³ ³ R C Y R C Y R C Y N N Y N N Y ³ ³ N N Y N N Y » ¿ R C Y R C Y R C Y R C Y ·...
- Page 15 38GL_M…G / 38YY(S)_M…G Electrical connections Mod. 38YY2M18G - 38YY2M21G - 38YY2M24G R C Y O W R C Y O W ³ ³ L N N L N N » ¿ R C Y · WARNING! The system power supply must always be made through the outdoor unit.
- Page 16 38GL_M…G / 38YY(S)_M…G Electrical connections E N G L I S H Mod. 38YY(S)2M36G - 38YY(S)2M48G L N R C L N R C ³ ³ R C Y R C Y » ¿ » · R C Y R C Y WARNING! The system power supply must always be made through the outdoor unit by means of two independent mains power supplies.
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Page 17: Electrical Data
27°C gL type (4-5) outdoor 35°C d.b. 24°C w.b. outdoor 35°C d.b. 24°C w.b. outdoor 24°C d.b. 18°C w.b. outdoor 43°C d.b. 32°C w.b. Cooling only 38GL2M12G 1460 1850 1.0 1.0 1.0 1.0 --- 38GL2M18G 2040 11.7 2500 1.0 1.0 1.0 1.0 --- 38GL2M24G 10.9... -
Page 18: Pump Down And Check The Refrigerant Charge
38GL_M…G / 38YY(S)_M…G Pump Down and check the refrigerant charge E N G L I S H Refrigerant charge control 38GL2M12G 38GL2M18G - 38GL2M24G - 38GL2M36G - 38GL2M48G 38GL3M21G - 38GL3M30G Outdoor unit Circuit A compressor Liquid + Gas Circuit B compressor... -
Page 19: Heat Pump Unit
38GL_M…G / 38YY(S)_M…G Check the refrigerant charge Refrigerant charge control 38GL4M24G Outdoor unit Circuit A compressor Circuit B compressor Outdoor unit coil Filter Expansion device (Capillary) Expansion device (Accurater) Distributor Solenoid valve Service valve Indoor unit coil A1 Indoor unit coil A2 Indoor unit coil B1 Indoor unit coilB2 Indoor unit coil A... -
Page 20: Unit Maintenance And Troubleshooting
38GL_M…G / 38YY(S)_M…G Unit maintenance and troubleshooting E N G L I S H Unit maintenance • Mains voltage wrong (too high or too low). • Condenser coil obstructed; remove obstructions. The following maintenance operations must be carried out by •... -
Page 21: Diagnostics And Testing
38GL_M…G / 38YY(S)_M…G Diagnostics The electronic control made on the unit ensures continuous seconds ON and for 0.5 seconds OFF. The code sequence is monitoring of the unit operation and in case of wrong operation an followed by 2 seconds during which the LED is OFF. When the last alarm is generated. - Page 22 L010127H20 - 1105 Via R. Sanzio, 9 - 20058 Villasanta (MI) Italy - Tel. 039/3636.1 The manufacturer reserves the right to change any product specifications without notice. November, 2005. Printed in Italy...