Toshiba MMU-AP0091H Installation Manual page 108

7) Floor standing cabinet type
Hard polyvinyl chloride pipe ;
Piping
nominal dia. (inner dia.) : Ø20mm
Heat Vesicant polyethylene :
insulator Thickness ; 6mm or more
1. Because the drain is a gravity drain, the pipes
outside of the unit must have a downward slope.
2. Once the piping work is complete, pour water in
the drain pan and make sure that the water drains
completely.
8) Floor standing concealed type
Installation of accessories
Install the drain receiver (accessory) on the pipe side
of the indoor unit.
Cut the insulation, insert the protrusion
on the drain receiver into the hole, and
then install it by pushing it in the
directions indicated by the arrows.
Drain receiver (accessory)
1. Make sure that the drain pipe slopes downwards at a rate of 1/100 or more, do not route the drain pipe
over another pipe, and do not create a trap.
2. Limit horizontal runs of drain pipe to no more than 20m (not including change in height). If a drain pipe is
long, prevent undulations in the pipe by installing support brackets along the pipe. Never use an air
escape pipe. The drain water may blow out of such a pipe.
3. If using a collective drain pipe, install a VP30 or equivalent pipe with a downward slope of at least 1/100.
Apply adequate insulation (at least 6mm of polyethylene foam) to the drain pipe, as in the case of a
refrigerant pipe.
4. Once pipe installation is complete, pour water into the drain receiver and make sure that the water drains.
Check for leaks at the hose connection.
CAUTIONS
Sometimes, debris will accumulate in the drain receiver while installation work
is in progress. Remove the strainer from the drain receiver and clean it.
After cleaning the strainer, replace it in the drain receiver.
Fan
Drain pan
Piping and Insulation
Drain hose
CAUTIONS
108
Fan motor
Drain pipe connecting port
Drain receiver
Use adhesive for hard polyvinyl chloride pipe
Hard polyvinyl chloride pipe
Elbow
Insulation
Strainer