Daikin FXSA15A2VEB, Installation And Operation Manual

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12 Unit installation
Installation and operation manual
14
FXSA15~140A2VEB
VRV system air conditioner
3P599602-1 – 2020.05
e Canvas duct (field supply)
f Aluminium tape (field supply)
▪ Fixing screws . When installing an air inlet duct, select fixing
screws that stick out 5 mm on the inside of the flange to protect
the air filter from damage during maintenance of the filter.
a b
c
5 mm
a Air inlet duct
b Inside of the flange
c Fixing screw
3 Wind aluminium tape around the flange and duct connection.
Make sure there are no air leaks at any other connection.
4 Insulate the duct to prevent condensation from forming. Use
glass wool or polyethylene foam 25 mm thick.
▪ Filter. Be sure to attach an air filter inside the air passage on the
intake side. Use an air filter with dust collecting efficiency ≥50%
(gravimetric method).
12.2.3 Guidelines when installing the drain
piping
Make sure condensation water can be evacuated properly. This
involves:
▪ General guidelines
▪ Connecting the drain piping to the indoor unit
▪ Checking for water leaks
General guidelines
▪ Pipe length. Keep drain piping as short as possible.
▪ Pipe size. Keep the pipe size equal to or greater than that of the
connecting pipe (vinyl pipe of 20 mm nominal diameter and
26 mm outer diameter).
▪ Slope. Make sure the drain piping slopes down (at least 1/100) to
prevent air from being trapped in the piping. Use hanging bars as
shown.
1~1.5 m
a
a Hanging bar
O Allowed
X Not allowed
▪ Condensation. Take measures against condensation. Insulate
the complete drain piping in the building.
▪ Rising piping . If necessary to make the slope possible, you can
install rising piping.
▪ Drain hose inclination: 0~75 mm to avoid stress on the piping
and to avoid air bubbles.
≤625
≤300
0~75
1000~1500
(mm)
b a
b a d d c
a Metal clamp (accessory)
b Drain hose (accessory)
c Rising drain piping (vinyl pipe nominal Ø20 mm and outer
Ø26 mm)
d Hanging bars (field supply)
▪ Combining drain pipes. You can combine drain pipes. Make
sure to use drain pipes and T-joints with the correct gauge for the
operating capacity of the units.
≥100
≤625
(mm)
a
a T-joint
To connect the drain piping to the indoor unit
NOTICE
Incorrect connection of the drain hose might cause leaks,
and damage the installation space and surroundings.
a Drain outlet for maintenance
b Refrigerant pipes
c Drain pipe connection
1 Push the drain hose as far as possible over the drain pipe
connection.
2 Tighten the metal clamp until the screw head is less than 4 mm
from the metal clamp part.
3 Check for water leaks (see "To check for water leaks" [
4
15]).
4 Wind the large sealing pad (= insulation) around the metal
clamp and drain hose, and fix it with tie wraps.
5 Connect the drain piping to the drain hose.