26
OCH675E
7-3. REFRIGERANT SYSTEM DIAGRAM
7-3-1. Connection without Branch box
Thermistor(TH7)
<Ambient>
Check valve
<Low pressure>
Ball valve
Strainer
4-way valve
Accumulator
High pressure
switch(63H)
Check valve
<High pressure>
Compressor
Distributor
Thermistor(TH3)
<Outdoor liquid pipe>
LEV-A
HIC
Oil separator
Solenoid
Valve(SV1)
Service port
High pressure
sensor(63HS)
Low pressure
sensor(63LS)
Capillary
tube
Thermistor(TH4)
<Compressor>
Thermistor(TH6)
<Suction pipe>
Thermistor(TH2)
<HIC pipe>
Refrigerant gas pipe
Strainer
Strainer
Strainer
Capillary
tube
LEV-B
Strainer
Strainer
Service port
Refrigerant liquid pipe
Stop valve
Strainer
Strainer
Note:
When connecting the CONNECTION KIT (PAC-LV11M-J) and an M-series indoor unit, refer to the
installation manual for the CONNECTION KIT.
Refrigerant piping specifications <dimensions of flared connector>
Item
Capacity
Liquid piping
Gas piping
Indoor unit
P10, 15, 20, 25, 32, 40, 50
ø
6.35 <1/4>
ø
12.7 <1/2>
P63, 80, 100, 125, 140
ø
9.52 <3/8>
ø
15.88 <5/8>
P200
ø
9.52 <3/8>
ø
19.05 <3/4>
Outdoor unit
P200
ø
9.52 <3/8>*
ø
19.05 <3/4>
* Use
ø
12.7 when farthest piping length is longer than 60m.
Capillary tube for oil separator: ø2.5 × ø0.8 × L800
Capillary tube for solenoid valve: ø4.0 × ø3.0 × L500
Unit: mm <in>
Unit: mm