Table of Contents
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Table of Contents
Related Manuals for Carrier 38GL_M...G
Summary of Contents for Carrier 38GL_M...G
- Page 1 38GL_M…G / 38YY(S)_M…G R-410A INSTALLATION MANUAL...
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Page 2: Table Of Contents
• 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). Quantity CC Models Oil type... -
Page 3: Dimensions And Weight
38GL_M…G / 38YY(S)_M…G R-410A Dimensions and weight Table I Cooling Hi-Wall Console Cassette Satellite only Power supply models 42PHQ-N 42HMC-N 42VMC-N 40KMC-N 40SMC-N 38GL2M12G 009 - 012 009 - 012 009 - 012 009 - 012 38GL2M18G 38GL2M24G 38GL2M36G 230V ~ 50Hz 38GL2M48G 38GL3M21G 009 - 012... -
Page 4: Minimum Clearances And Connections
38GL_M…G / 38YY(S)_M…G R-410A Minimum clearances and connections E N G L I S H Connections Pipe diameter Model Liquid 38GL Indoor (Liquid) (Suction) unit (inches) (inches) 6,35 (1/4") 9,52 (3/8") 2M12G 6,35 (1/4") 12,70 (1/2") (note 1) 6,35 (1/4") 9,52 (3/8") 2M18G... -
Page 5: Connections
38GL_M…G / 38YY(S)_M…G R-410A Connections Connections B / B 1 Outdoor unit Indoor unit circuit A Indoor unit circuit A Indoor unit circuit B Indoor unit circuit B Table II: Connections Model 2M12G 2M18G 2M24G 3M21G 4M24G 2M36G 2M48G Max. height difference L1 m –... -
Page 6: Operating Limits And System Charge
38GL_M…G / 38YY(S)_M…G R-410A Operating limits and system charge E N G L I S H 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 –... -
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 R-410A 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 R-410A 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 R-410A 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 R-410A 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 R-410A 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: Electrical Connections
38GL_M…G / 38YY(S)_M…G R-410A 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 R-410A Electrical connections E N G L I S H Mod. 38GL2M36G - 38GL2M48G L N R C Y L N R C Y ³ ³ » ¿ » ¿ L N R C Y L N R C Y ·...
- Page 15 38GL_M…G / 38YY(S)_M…G R-410A Electrical connections Mod. 38YY2M18G - 38YY2M21G - 38YY2M24G R C Y O W2 R C Y O W2 ³ ³ L N N L N N » ¿ R C Y 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 R-410A 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...
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Page 17: Electrical Data
38GL_M…G / 38YY(S)_M…G Electrical connections and electrical data • Make electrical connections between units prior to proceeding to mains supply unit connection. • Before proceeding with the unit connection to the mains supply locate live L and neutral N, then make connections as shown in the wiring diagram. -
Page 18: Pump Down And Check The Refrigerant Charge
38GL_M…G / 38YY(S)_M…G R-410A Pump Down and check the refrigerant charge E N G L I S H Refrigerant charge control 38GL2M12G 38GL2M18G - 38GL2M24G - 38GL2M36G - 38GL2M48G 38GL3M21G Outdoor unit Circuit A compressor Liquid + Gas Circuit B compressor Outdoor unit coil Liquid Filter... -
Page 19: Heat Pump Unit
38GL_M…G / 38YY(S)_M…G R-410A 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 R-410A Unit maintenance and troubleshooting E N G L I S H • Mains voltage wrong (too high or too low). Unit maintenance • 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 R-410A 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 L010124H50 - 0303 Via R. Sanzio, 9 - 20058 Villasanta (MI) Italy - Tel. 039/3636.1 The manufacturer reserves the right to change any product specifications without notice. Order No. 13816-74M10, March 2003. Supersedes Order No. 13816-74M10, October 2002. Printed in Italy...