9/19
55908014-17
MAXIMUM EQUIVALENT LENGTH OF SUCTION LINE PIPE SIZES (m) LIQUID LINE
SYSTEM
3/8"
1/2"
5/8"
-
1/4"
3/8"
CXE40 + CKC20
7.5
20
-
-
20
--
CXE50 + CKC40
-
15
20
-
-
20
CXE70 + CKC60
-
7.5
18
20
-
20
B. USING SUCTION AND EXPANSION LINES
The expansion assembly must be removed from the indoor unit and connected to the outdoor unit allowing a
pipe run of up to 80m, including a maximum lift of 20m (CKC20 maximum 50m with 7.5m lift).
CX(E) units only, remove the right hand panel cover plate from the indoor unit and remove the expansion
assembly. [Make good the gap using Extended Pipe Run Kit 55900709 (30,40,50), 55900710 (70).]
Fit the expansion assembly onto the outdoor unit liquid line service valve. Fully insulate both the suction and
expansion lines, including the expansion device: ensure the pipes are insulated well over the drain tray at the
indoor unit.
MAXIMUM EQUIVALENT LENGTH OF SUCTION LINE PIPE
SIZES (m)
EXPANSION LINES
SYSTEM
3/8"
1/2"
5/8"
3/4"
7/8"
3/8"
1/2"
5/8"
CX(E)30 + CKC20
7.5
23
50
-
-
50
-
-
CX(E)40 + CKC30
-
10
36
80
-
7.5
80
-
CX(E)50 + CKC50
-
7.5
18
50
80
7.5
50
80
CX(E)70 + CKC80
-
-
11
30
80
-
50
80
MAXIMUM EQUIVALENT LENGTH OF SUCTION LINE PIPE
SIZES (m)
EXPANSION LINES
SYSTEM
3/8"
1/2"
5/8"
3/4"
7/8”
3/8"
1/2"
5/8"
CXE40 + CKC20
7.5
23
50
-
-
50
-
-
CXE50 + CKC40
-
10
36
80
-
7.5
80
-
CXE70 + CKC60
-
7.5
18
50
80
7.5
50
80
PIPE CONNECTIONS
Units are supplied with the
following male flare connections
(sizes in inches):
RESTRICTORS
Indoor units are supplied with restrictors fitted.
OUTDOOR UNIT
CKC20
CKC30
CKC40
CKC50
CKC60**
CKC80
LIQUID / EXPANSION
3/8"
3/8"
3/8”
3/8"
3/8”
1/2"
SUCTION
1/2"
1/2"
1/2”
1/2"
5/8”
5/8"
NOTE
When the CXE 40 is matched with a CKC 20.
The restrictor in the indoor unit must be
changed to 0.033"
When the CXE 50 is matched with a CKC 40.
The restrictor in the indoor unit remains as
a 0.050"
When the CXE 70 is matched with a CKC 60.
The restrictor in the indoor unit must be
changed to 0.057"
