Installation Of The Outdoor Unit; Refrigerant Piping - Daikin FDYMP75DXV1 Installationshandbuch

Location For Installation
Install the outdoor unit in such way that air distributed by the
outdoor unit cannot be drawn in again (as in the case of short circuit
of discharge air). Allow sufficient space for maintenance around
the unit.
Ensure that there are no obstruction of air flow into or out of the unit.
Remove obstacles which block air intake or discharge.
The location must be well ventilated, so that the unit can draw and distribute plenty of air.
A place capable of bearing the weight of the outdoor unit and isolating noise and vibration.
A place protected from direct sunlight. Otherwise use an awning for protection, if necessary.
A place where smooth drainage of rain water and water formed by defrosting is acceptable.
A place where the unit will not be buried in snow.
A place where air outlet port is not exposed to strong wind.
A place where the air discharge and operating sound level will not annoy the neighbours.
The location must not be susceptible to dust or oil mist.
If the condensing unit is operated in an atmosphere containing oils (including machine oils), salt (coastal area),
sulfide gas (near hot spring, oil refinery plant), such substances may lead to failure of the unit.
Installation Clearance
Outdoor unit must be installed such that there is no short circuit of the discharge air or obstruction to smooth air flow.
Maximum Pipe Length And Maximum No. Of Bends
When the pipe length becomes too long, both the capacity and reliability will drop and as the no. of bends increases, system piping
resistance to the refrigerant flow increases, thus lowering the capacity. As a result the compressor may fail. Always choose the shortest
path and follow the recommendations as tabulated below:-
Model
Max. Allowable Length**, m
Max. Allowable Elevation, m
Bending must be carefully made so as not to crush the pipe. Use a pipe bender to bend a pipe where possible.
Our guarantee on the performance of our air-conditioners is strictly revoked if the height and/or length of the refrigerant
** Max. Allowance length = straight pipe length + equivalent bends straight length

INSTALLATION OF THE OUTDOOR UNIT

! CAUTION
PATTERN 1 PATTERN 2
600 300
TOP VIEW TOP VIEW
PATTERN 3
<1500
600
SIDE VIEW FRONT VIEW
RCY(P)75/100/125/150E(G)

REFRIGERANT PIPING

RCY(P)75/100/125/150E(G)
40m
20m
! CAUTION
piping system installed is beyond the limit above.
When two or more outdoor units are installed in a location, they must
be positioned such that one unit will not be taking the discharge air
from another.
This also applies when two or more units are installed one above the
other. The units must all face the same direction, or opposite direction
(back to back), such that air short circuit does not occur.
SERVICE PANEL
AIR DISCHARGE
DIRECTION
WALL / CELLING
AIR DISCHARGE GRILL
NOTE:
1) ALL DIMENSION ARE IN MM.
2) ALL DIMENSION MENTIONED ARE
MINIMUM DISTANCE REQUIRED.
UNLESS OTHERWISE SPECIFIED
Equivalent length for various fitting (meter)
Pipe Size
3/8" (OD9.52mm)
1/2" (OD12.7mm)
5/8" (OD15.9mm)
3/4" (OD19.1mm)
7/8" (OD22.2mm)
1" (OD25.4mm)
1 1/8" (OD28.6mm)
1 3/8" (OD34.9mm)
Notes:
1. Equivalent piping length is obtained with actual length of gas piping.
2. 90° bend of piping is equivalent to L joint.
1-10
L joint Trap bend
0.18 1.3
0.20 1.5
0.25 2
0.35 2.4
0.40 3
0.45 3.4
0.50 3.7
0.60 4.4