4. REFRIGERANT FLOW DIAGRAM
4-1. Refrigerant Flow Diagram
Outdoor Unit
Indoor unit | Outdoor unit |
O.D.9.52mm | Service valve on | Sub | Main | Compressor |
accumulator | accumulator | |||
Wide tube | wide tube |
|
|
|
BW |
|
|
| |
O.D.9.52mm | AW | Muffler |
|
|
|
|
| ||
|
|
|
| |
|
|
|
| |
|
| valve |
| exchangerHeat |
|
| Defrost valve | S | |
|
| for hot gas bypass |
| |
|
|
|
| |
|
| Electric | Capillary |
|
|
| expansion | tube for |
|
| Service valve on | split flow |
| |
| valve |
|
| |
| narrow tube | M |
|
|
Narrow tube | BN |
|
| |
|
|
| ||
O.D.6.35mm | AN | M |
|
|
|
|
| ||
O.D.6.35mm |
|
|
| |
Strainer |
|
| ||
|
|
| ||
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. 8 mm.
After a tube has been insulated, CAUTION never try to bend it into a narrow
curve because it can cause the tube to break or crack.
| Insulation |
Thickness: | Thickness: |
Min. 8 mm | Min. 8 mm |
Wide tube | Narrow tube |
|
23
