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4-1
12PHR-N
CHAPTER 4. REFRIGERATION CYCLE
[1]SCHEMATIC DIAGRAM
1. HOW REFRIGERANT FLOWS
s
1
4
C
2
Accumulator
3
Strainer
Expansion
valve
Heating
Cooling
Outdoor unit
Condenser
Evaporator
Indoor unit
Reverse valve
Comp-
ressor
Flare coupling
Flare coupling
3-way
valve
2-way
valve
Silencer
Coil
Antifreeze
pipe
2. STANDARD CONDITION
Indoor side
Outdoor side
Dry-bulb Temp. (
℃
)
Relative Humidity (%)
Dry-bulb Temp. (
℃
)
Relative Humidity (%)
Cooling
27
47
35
40
Heating
20
—
7
87
* REFRIGERANT PIPE LENGTH: 5m
3. TEMPERATURE AT EACH PART AND PRESSURE IN 3-WAY VALVE
Model
12PHR-N
Mode
Cooling
Heating
Temp. on
(°C)
65
56
Temp. on
(°C)
37
3
Temp. on
(°C)
14
22
Temp. on (°C)
14
5
3-way valve pressure (MPaG)
1.00
2.17
* On test run mode
12PHR-N_S530612PHRN.indd 1
2013/8/7 15:42:18
Summary of Contents for 12PHR-N
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