Toshiba MMU-AP0091H Installation Manual page 105

5) Under ceiling type
Remove the transport brackets before beginning work.
Insulate drain pipes completely, including the connections. Failure to insulate drain pipes will allow
condensation to form.
Piping and Insulation
<Indoor unit>
Hard polyvinyl chloride pipe ;
Piping
nominal dia. (inner dia.) : Ø20mm
Heat Vesicant polyethylene :
insulator Thickness ; 6mm or more
Piping methods
1. Installing drain pipe to rear
Fix the drain pipe holding plate with screws at the
bottom of the rear knockout hole, and then secure
the drain pipe in place with a nylon band.
Make sure that the nylon band's link point is on
the inner side of the unit (above the drain pipe
holding plate). If only the drain pipe will be routed
out the rear of the unit, use just the drain pipe
knockout hole.
2. Installing drain pipe to the left or right
Install the drain pipe so that it is horizontal.
* When running the drain pipe out of the left side
of the unit, open the knockout hole. Also move
the drain hose from the right side to the left, and
move the plug from the left side to the right.
Use a blunt-tipped object to push the plug in all
of the way to its base.
After piping work has been completed, use the
insulation provided to seal all gaps around the
knockout.
(Cut the insulation to the necessary shape.)
CAUTION
Heat insulator
Drain pan
How to drill the
rear knockout
Cut with
metal saw.
Nylon band
(Accessory)
*
(Use fixing screws
for transport metal.)
Knockout hole
for drain pipe
Drain
pipe
105
Hard polyvinyl
chloride pipe
Adhesion for
Drain hose
hard polyvinyl
(Unit side)
chloride pipe used
Knockout hole
for rear taking out
Refrigerant
piping
Drain pipe
fixing plate
(Accessory)
Fixing screw
Drain pipe
Hole for right side
(left side) piping
Plug
*
*