Table of Contents
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Table of Contents
Related Manuals for Carrier 38BC
Summary of Contents for Carrier 38BC
- Page 1 38BC / 38BCS / 38BH R-410A 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. • Do not vent R-410A into the atmosphere. • Use only Carrier matching indoor units (Table I). Unit size Oil type... -
Page 3: Dimensions And Weight
38BC / 38BH R-410A Dimensions and weight 38BC 38BH Mod. 07- 09 - 12 - 14 07- 09 - 12 - 14 26,5 - 30 - 33 - 35 28,5 - 33 - 36 - 37 Ø 8,3 Connections Outdoor unit... -
Page 4: Minimum Clearances
38BC / 38BH R-410A Minimum clearances E N G L I S H Model 007-009-012-014 A mm B mm C mm D mm E mm F mm Table III: Operating limits Cooling (2) outdoor temperature 43°C Maximum conditions indoor temperature 32°C d.b.; 23°C w.b. -
Page 5: General Information
• Choose a position sheltered from direct sun. • The mains supply must be connected as follows: Models 38BC and 38BH: to the indoor unit. • Choose an area where air outlet and unit noise will not bother Models 38BCS: to the outdoor unit. -
Page 6: Warnings: Avoid
38BC / 38BH 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 this will cause refrigerant leaks. Loosening the liquid line connection Table II "Connections"). Excessive distance between indoor and may cause the loss of the expansion device. -
Page 7: Refrigerant Connections
38BC / 38BH 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. - Page 8 38BC / 38BH R-410A Refrigerant connections E N G L I S H Flaring the ends of the tubing Remove protective caps from copper tube ends. Where required, the unit must be charged with additional Position tube end downward, cut the tube to the requested length refrigerant.
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Page 9: Air Purging
38BC / 38BH R-410A Refrigerant connections Three-way valve (gas) Needle valve Valve cap Valve needle Allen (hex. head) wrench Three-way valve (liquid) Flare nut Liquid line (small diameter) Gas line (large diameter) Indoor unit Outdoor unit Vacuum pump Air purging Use only a vacuum pump to purge air from the piping. -
Page 10: Electrical Connections
38BC / 38BH R-410A Electrical connections E N G L I S H 38BC- 007 - 009 - 012 - 014 38BH- 007 - 009 - 012 - 014 Cooling only Cooling only Heat pump Heat pump unit system unit... -
Page 11: Electrical Data
R-410A Electrical connections The mains supply must be connected as follows: Models 38BC and 38BH: to the indoor unit. Models 38BCS: to the outdoor unit. • Open control box panel (valve cover panel). • Make electrical connections between units prior to proceeding to mains supply unit connection. -
Page 12: Pump Down And Check The Refrigerant Charge
38BC / 38BH R-410A Pump Down and check the refrigerant charge E N G L I S H Pump-down Check the refrigerant charge Pump-down is an operation intended to collect all the system • This check becomes necessary after any refrigerant leak due to refrigerant in the outdoor unit. -
Page 13: Unit Maintenance
38BC / 38BH R-410A Maintenance, troubleshooting, guide for the owner and accessories Unit maintenance • Refrigerant charge low; check and add refrigerant. • Outdoor unit fan faulty; replace. The following maintenance operations must be carried out by • Air or other non condensable gases in the circuit; drain refrigerant qualified personnel. -
Page 14: Installation Instructions Supplement
Installation instructions supplement 38BCS...G E N G L I S H Head pressure controller: Cooling only wiring from temperature sensor to printed circuit board ³ · SENSOR SENSOR SENSOR CONTROL N. OUT NEUTRAL LINE OUT LINE IN NEUTRAL ³ Outdoor unit High pressure cut-out ·... - Page 15 L010125H19 - 0503 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. 13851-74M10, May 2003. Supersedes Order No. 13851-74M10, April 2002. Printed in Italy...