3
PURY-(E)P264 to (E)P336
Set model
PURY-(E)P264
PURY-(E)P288
PURY-(E)P312
PURY-(E)P336
Set Unit
Unit 1
PURY-(E)P144
PURY-(E)P144
PURY-(E)P168
PURY-(E)P168
Unit 2
PURY-(E)P120
PURY-(E)P144
PURY-(E)P144
PURY-(E)P168
Twinning type
CMY-R300NCBK
Twinning pipe - BC Controller
High-pressure
a
ø28.58 [1-1/8]
Twinning pipe - BC Controller
Low-pressure
b
ø34.93 [1-3/8]
ø41.28 [1-5/8]
Twinning pipe - Outdoor unit
Unit model
High-pressure
Low-pressure
PURY-HP72
ø15.88 [5/8]
ø19.05 [3/4]
PURY-HP/(E)P96
ø19.05 [3/4]
ø22.2 [7/8]
PURY-HP/(E)P120
ø19.05 [3/4]
ø28.58 [1-1/8]
PURY-(E)P144
ø22.2 [7/8]
ø28.58 [1-1/8]
PURY-(E)P168
ø22.2 [7/8]
ø28.58 [1-1/8]
(2) Slope of twinning pipes
Make sure the slope of the twinning pipes are at an angle
within ±15˚ to the horizontal plane.
If the slope exceeds the specified angle, the unit may be
damaged.
±15
˚
(3) The length of the straight pipe between indoor units and the twinning pipe
Use the pipes supplied in the twinning kit, and make sure the section of the field-supplied pipe that connects to the twinning pipe has
at least 500 mm [19-11/16 in] of straight section. (The section of the field-supplied pipe that connects to the twinning pipe must have
at least 500 mm [19-11/16 in] of straight section.) If the straight section is less than 500 mm [19-11/16 in], it may result in equipment
damage.
(4) Pipe connection
• Make sure the pipes from the twinning pipe to the outdoor unit are sloped downwards.
A
B
• If twinning pipe is installed above the base of the outdoor unit,
it should be no more than 200 mm [7-7/8 in].
• If the length of the pipe between the branching point and the outdoor unit exceeds 2 m (6 ft), provide a trap within 2 m (6 ft) from the
branching point.
The trap must be at least 200 mm (7-7/8 in) in height. (low-pressure pipe only) If there is no trap, oil can accumulate inside the pipe,
causing a shortage of oil and may damage the compressor.
* Small dots in the figures indicate branching points.
Ⓐ
Ⓒ
Ⓑ
Ⓐ
Ⓐ
To indoor units
Ⓑ
Trap (low-pressure pipe only)
Ⓒ
High-pressure pipe
Twinning pipe
Slope of the twinning pipe is at an angle within ±15° to the horizontal plane.
100 mm
[3-15/16 in]
max
Total pipe length = A + B < 5 m [16-7/16 ft]
Unit 2
Upward slope
Unit 1
To BC controller
Downward slope
Twinning pipe
To BC controller
Unit 2
Unit 1
Unit 1
To
BC controller
Unit 2
Twinning pipe
200 mm
[7-7/8 in]
max
2 m (6 ft)
≤ 2 m (6 ft)
