Service manual

11
5
NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION
5-1. REFRIGERANT SYSTEM DIAGRAM
Capillary tube
in R-Converter Unit
1 : {3.6 o {2.4 o L95
2 : {3.6 o {2.4 o L150
Liquid (mm)
Gas (mm)
{6.35w (IN/OUT)
Indoor unit capacity pipe size (mm)
BTU
07, 09
12, 13
18
24, 30
HP
1
1.6
2
2.5
Liquid
{6.35
{6.35
{6.35
{9.52
Gas
{9.52
{12.7
{15.88
{15.88
<Reference>
Conversion formula
1/4F
3/8F
1/2F
5/8F
3/4F
{6.35
{9.52
{12.7
{15.88
{19.05
Model name
Connected pipes diameter
mm
Diameter A
mm
Diameter B
mm
{6.35 → {9.52 {6.35 {9.52PAC-493PI
Outdoor unit capacity pipe size (mm)
kcal/h
12500
kW
14.0
Liquid
{9.52
Gas
{19.05
• Piping connection size of R-Converter Unit
W If using a [9.52 refrigerant pipe, use joint pipe
“PAC-493PI” (optional parts) or a locally
procured tandem joint ([6.35➝[9.52)
• Piping connection size of indoor unit
Select piping that match the size of the Indoor Unit
piping connection.
• Piping connection size of outdoor unit
• Different-diameter joint (Optional parts)
TH23j
R-Converter Unit1
R-Converter Unit2
Indoor Unit2
Indoor Unit1
Outdoor Unit
Capillary tube
LEV1
HIC
TH1
TH5
TH6
Comp
Acc
SV
O/S
THHS
21S4
63HS
TH2
LEV2j
LEV2j
TH23j
HEX
HEX
HEX
TH22j
TH22j
Functioal Parts
<Outdoor Unit>
<R-Converter Unit>
Compressor
Oil Separator
High Pressure Sensor
4-way Valve
Heat Exchenger
Overcooling Heat Exchenger
Electronic Expansion Valve
Accumulator
Electronic Expansion Valve
Comp
O/S
63HS
21S4
HEX
HIC
LEV1
Acc
LEV2j
Thermistor
<Outdoor Unit>
<R-Converter Unit>
Discharge Temperature Sensor
Saturation Temperature of Suction Pressur
Piping Temperature
Outdoor Air Temperature
Liquid Pipe Temperature
Gas Pipe Temperature
TH1
TH2
TH5
TH6
Th22j
Th23j
OC296--1.qxp 03.6.11 9:37 AM Page 11