Panasonic U-26PE1U6 Technical Data & Service Manual page 182

NOTE
The hole should be made at a slight downward slant to the
outside.
PVC pipe (not supplied)
Cut at slight angle
(1) Drain hose connection
T he drain hose is connected below the refrigerant tubing.
1
(2) Installing the drain hose
F
irst insert the drain hose (supplied) to the hose band
and then install the drain hose to the unit drain port.
Insert until the drain hose bumps to the end.
Attach the hose band to make the fixed portion 45°upper
gradient according to a vinyl tape (
hose (supplied). (Fig. 1-203)
Hose band screw torque is 2.6 - 3.0 lbf·inch (30 - 35 N·cm).
Wind the vinyl tape not to blow up the hose band.
Connect both the drain hose and PVC pipe (VP20 or similar
material, not supplied). Insert until the PVC pipe bumps to
the end and adhere with PVC adhesive.
CAUTION
Wrap the drain insulator (supplied) between the connection
of the drain hose and tubing not to expose the copper
tubing. Also, wrap the hose band together.
Wrap the hose band with the drain insulator, where the
screw is located facing upward (Fig. 1-203). Then, tighten the
insulator with a vinyl tape not to cause the detachment. If
the tubing parts remain exposed, condensation may occur.
Be sure to use the supplied drain hose.
If other commercially available hose bands are used, the
drain hose may become pinched or wrinkled and there is
danger of water leakage.
Therefore be sure to use the supplied hose bands.
Connect the drain pipe so that it slopes downward from the
unit to the outside. (Fig. 1-202)
Correct
N
ever allow water traps to occur in the course of the piping.
Insulate any piping inside the room to prevent dripping.
After the drain piping, pour an appropriate amount of water
into the drain pan through the opening on the side of the air
discharge port. Check the water draining smoothly.
Indoor Outdoor
side side
INSIDE OUTSIDE
Wall
PVC pipe
Slight
angle
of the drain
not supplied)
Downward
slant:
min. 1/100
Incorrect
* If the drain hose is routed through the left side, refer to Fig. 1-198,
and follow the procedure above to install the hose.
Reattach the rubber stopper removed earlier onto the right side.
The rubber stopper can be inserted easily by using a screwdriver
or similar tool to press the
stopper into the drain port on
the main unit.
Press the stopper into the main
unit drain port as far as it will
go.
Fig. 1-200
Unit drain port
Do not use adhesive.
Fig. 1-201
(
supplied)
Vinyl tape
Drain insulator
Vinyl tape
CAUTION
The indoor unit should be slightly tilted downward toward the
drain pipe connection side as shown in figure below so that
the wastewater can flow smoothly without being trapped in the
middle. (Fig. 1-204)
Diagonally right down (front view)
(Ex.: Diagonal-right-backwards)
Upward
slant:
Fig. 1-202
Diagonally backward (side view)
1-174
1. Specifications
Screwdriver
Rubber stopper
Hose band (supplied)
Hard PVC pipe
(VP20 not supplied)
Drain hose (supplied)
Adhere with PVC adhesive.
Drain insulator (supplied)
Hose band
Drain insulator
Ceiling
Ceiling
Drain port
Unit: inch (mm)
Hose band
Fig. 1-203
Approx. 1°
Approx. 2°
Fig. 1-204