Drain Piping Work - Daikin FXAQ20PVE Installation Manual

• After checking for gas leaks, be sure to insulate the pipe connections using the supplementary piping
insulation tubing and insulating tape (4). The insulating tape (4) should be wrapped from the L-shaped bend
all the way to the end inside the unit. (Refer to Fig. 15)
Insulating tubing tape
Local piping
Indoor unit piping insulation tubing
CAUTION
Be sure to insulate any field piping all the way to the piping connection inside the unit. Any exposed piping
may cause condensation or burns if touched.

6. DRAIN PIPING WORK

(1) Install the drain piping. (Refer to Fig. 16)
• The drain pipe should be short with a downward slope and should prevent air pockets from forming.
• Watch out for the points in the Fig. 16 when performing drain work.
Make sure the drain
hose is at a downward
slope.
• When extending the drain hose, use a commercially available drain extension hose, and be sure to
insulate the extended section of the drain hose which is indoors. (Refer to Fig. 17)
Extension drain piping
(commercially available)
Insulating tube
(commercially available)
• Make sure the diameter of the piping is the same as the piping (hard vinyl chloride, nominal diameter
13mm) or bigger.
12
Clamping material large
(accessory) (5)
Insulating tape (accessory) (4)
Indoor unit piping
See "4. INDOOR UNIT
INSTALLATION"
Make sure the tip does
not go underwater even
when water is added.
Insulating tubing tape
L-shaped
bend
Start wrapping
Drain hose
(Downward
slope)
Fig. 16
Indoor unit drain hose
Insulating tape (accessory) (4)
( See "4. INDOOR UNIT INSTALLATION" )
Indoor unit piping insulation tubing
Insulating tubing tape
Insulation tubing seam
Attach the insulation tubing
tape so that there are no gaps
in the insulation tubing seam.
Fig. 15
Drain hose
Fig. 17
English