4. REFRIGERANT FLOW DIAGRAM
4-1. Refrigerant Flow Diagram
Outdoor Unit
Indoor unit |
| Outdoor unit |
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| Service valve on | Sub |
| Main | Compressor |
| BW |
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| wide tube |
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Wide tube | CW | accumulator |
| accumulator |
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O.D.3/8" |
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O.D.3/8" |
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| High pressure |
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| AW |
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| switch |
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| H.P. |
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O.D.3/8" |
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Header |
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| valve |
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| exchanger |
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| Defrost valve for | S | ||
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| hot gas bypass |
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| Electric |
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| Heat |
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| expansion |
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| Service valve on | valve |
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Narrow tube | narrow tube | M |
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CN |
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O.D.1/4" |
| M |
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| BN |
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O.D.1/4" |
| M |
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| AN |
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O.D.1/4" | Strainer | Header |
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Cooling cycle
Heating cycle
Defrosting cycle
Insulation of Refrigerant Tubing
IMPORTANT
Because capillary tubing is used in the outdoor unit, both the wide and narrow tubes of this air conditioner become cold. To prevent heat loss and wet floors due to dripping of condensation, both tubes must be well insulated with a proper insulation material. The thickness of the insulation should be a min.5/16"(8 mm).
Thickness: Min.5/16"(8 mm)
Insulation
Thickness:
Min.5/16"(8 mm)
After a tube has been insulated, never try to bend it into a narrow
Wide tube
Narrow tube
CAUTION
curve because it can cause the tube to break or crack.
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