Refrigeration Cycle Diagram - Carrier 42NQ018N Service Manual

Cooling
0.39 m
Heating
(Connecting pipe)
Æ12.7
P
O.D.:12.7 mm
Packed valve
(Æ12.7)
Heating
Cooling
4-way valve
Heating Cooling
Discharge Muffler
∅25x160L
Cooling
Heating
50Hz
Standard
Heating Overload*1
Low temperature
Standard
Cooling Overload
Low temperature
Note
· Measure the heat exchanger temperature at the center of U-bend. (By means of TC sensor)
*1 · During heating overload operation, a value for the high temperature limit control operation is included.

5. REFRIGERATION CYCLE DIAGRAM

Indoor unit
Heat exchanger
Cross flow fan
Compressor
PA200X2CS-4KU1
Accumulator
Heat exchanger
Propeller fan
Outdoor unit
Standard
pressure P exchanger interchanging
(MPaG)
2.53
3.30 ~ 3.65
1.75
0.94
1.12
0.72
T1
Capillary tube
Æ1.7 x 600
l
Refrigerant
R410A : 1.53 kg.
Mark ( ) means check points of Gas Leak.
Surface temp. of heat
pipe T1 (°C)
42.0
51.0 ~ 55.0
32.0
11.0
15.0
4.2
– 9 –
FILE NO. SVM-10035
0.49 m
(Connecting pipe)
Æ6.35
O.D.:6.35 mm
Packed valve
(Æ6.35)
Capillary tube
Æ2.0 x 1000
l
Ambient temp.
conditions DB/WB
Fan speed
(°C)
(indoor)
Indoor Outdoor
High 20/15
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