Refrigerant Piping - Daikin C-Serie Installationshandbuch

• Outdoor units must be installed such that there is no short circuit of the hot discharge air or
obstruction to smooth air flow.
Select the coolest possible place where intake air should not be hotter than the outside temperature
(please refer operating range).
A
Air
Inlet
All Model
Minimum Distance (mm)
Condensed Water Disposal Of Outdoor Unit
(Heat Pump Unit Only)
• There are 2 holes on the base of Outdoor Unit
for condensed water to flow out. Insert the
drain elbow to one of the holes.
• To install the drain elbow, first insert one
portion of the hook to the base (portion A),
then pull the drain elbow in the direction
shown by the arrow while inserting the
other portion to the base. After installation,
check to ensure that the drain elbow clings
to base firmly.
• If the unit is installed in a snowy and chilly
area, condensed water may freeze in the
base. In such case, please remove plug at the
bottom of unit to smooth the drainage.
Allowable Pipe Length and Elevation
If the pipe is too long, both the capacity and reliability of the unit will drop. As the number of bends
increases, resistance to the flow of refrigerant system increases, thus lowering cooling capacity.
As a result, the compressor may become defective. Always choose the shortest path and follow
the recommendations as tabulated below:
Model
Max. allowable length, m
Max. allowable elevation, m
Liquid pipe size, mm/(in)
Gas pipe size, mm/(in)
1 IM 5CKC-0912(0)DAIKIN-EN.indd 11 1 IM 5CKC-0912(0)DAIKIN-EN.indd 11
INSTALLATION CLEARANCE
B
Air
Discharge
A
300 1000

REFRIGERANT PIPING

Indoor (FFRN/FFQN)
Outdoor (RN/RYN)
C
Air
Inlet
B C D
300 500
A
BASE
DRAIN ELBOW
25C
25C
12
5
6.35
(1/4")
9.52
(3/8")
1-11
D
Service
Space
PLUG
DRAIN ELBOW
35C 50C
35C 50C
12 15
5 8
6.35 6.35
(1/4") (1/4")
12.70 12.70
(1/2") (1/2")
10/9/12 9:42:53 AM 10/9/12 9:42:53 AM