Panasonic S-36MK2E5A - Drain Hose Connection; Installing the Drain Hose

2-35
Design of VRF SYSTEM
1
2
3
4
5
6
7
8
9
3. How to install the indoor unit
3-4-6.
(1)
Installing the Drain Pipe
●
Prepare hard PVC pipe for the drain and connect it to the indoor
unit drain pipe with the supplied hose band to prevent water leaks.
●
The drain hose is connected below the refrigerant tubing.
●
Measure the thickness of the wall from the inside to the outside
and cut PVC pipe at a slight angle to fit. Insert the PVC pipe in
the wall. (Fig. 2-77)
Drain hose connection
(2)
●
First insert the drain hose (supplied) to the hose band
(supplied) and then install the drain hose to the unit
drain port.
●
Insert until the drain hose bumps to the end.
●
Hose band screw torque is 30 - 35N · cm.
●
Wind the vinyl tape not to blow up the hose band.
●
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. 2-79). 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.
●
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.
●
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. 2-78)
●
Never 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.
*
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.
If the drain hose is routed through the left side, refer to Fig. 2-74, and follow the procedure above to install the hose.
Reattach the rubber stopper removed earlier onto the right side.
●
Attach the hose band to make the fixed portion 45°
upper gradient according to a vinyl tape (not supplied)
of the drain hose (supplied). (Fig. 2-79)
Installing the drain hose
NOTE
The hole should be made at a slight downward slant to the outside.
Indoor
side
Outdoor
side
Fig. 2-76
INSIDE
hard PVC pipe (not supplied)
Cut at slight angle
PVC pipe
Slight
angle
Wall
OUTSIDE
Fig. 2-77
Correct
Incorrect
Downward
slant:
min. 1/100
Upward
slant:
Fig. 2-78
Hose band (supplied)
Do not use adhesive.
Adhere with PVC adhesive.
Hard PVC pipe
(VP20 not supplied)
Drain hose (supplied)
Unit drain port
Unit: mm
Drain insulator (supplied)
(
45°
)
Hose band
Vinyl tape
Drain insulator
Vinyl tape
Drain insulator
Hose band
Fig. 2-79
CAUTION
Rubber stopper
Screwdriver
Drain port
TDxxxxxx-002WAYVRF.indb35TDxxxxxx-002WAYVRF.indb35 2014/01/3017:52:312014/01/3017:52:31