Refrigeration Cycle Diagram; Ras-18Ufhp-Es / Ras-18Uah-Es - Toshiba RAS-18UFHP-ES Service Manual

5-1. RAS-18UFHP-ES / RAS-18UAH-ES

Cooling
0.39m
Heating
(Connecting pipe)
∅12.70 mm
0.39m
(Flexible pipe)
∅12.70 mm
O.D.:12.70 mm
Packed valve
Heating
Cooling
4-way valve
Heating Cooling Compressor
Cooling
Heating
50Hz
Standard
Heating High temperature*1
Low temperature
Standard
Cooling High temperature
Low temperature
Note : Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor.)
*1 : During heating overload, the high temperature limit control operation is included.

5. REFRIGERATION CYCLE DIAGRAM

Multi blade fan
P
(∅12.70)
Muffler
PA225X3F-4L
Accumulator
Condenser
Propeller fan
Outdoor unit
Standard
pressure P
(MPaG)
2.7
3.0 ~ 3.8
2.0
0.9
1.0
0.6
T
Indoor unit
Evaporator
Capillary tube
∅1.7x700S
Mark ( ) means check points of Gas Leak
Surface temp. of heat
exchanger interchanging
pipe T (°C)
45.0
49.0 ~ 58.0
34.0
10.0
15.0
1.0
– 15 –
FILE NO. SVM-02009
0.49m
(Connecting pipe)
∅6.35 mm
O.D.:6.35 mm
Packed valve
(∅6.35)
Capillary tube
∅1.0x1500S
Refrigerant
R-410A 1.30 Kg
Ambient temp.
conditions DB/WB
Fan speed
(°C)
(indoor)
Indoor Outdoor
High 20/–
Low 27/–
High 20/– –10/–10
High 27/19
High 32/23
Low 21/15
7/6
24/18
35/24
43/26
21/15