Refrigerant Piping - Toshiba MMC-AP0151H Manuel D'installation

Drain up
When not securing down slope on the drain pipe, use a drain up kit sold separately.
Also refer to the "Drain up kit installation manual".
The drain pipe can be raised 60cm from the top face of the main unit.
* When using drain up kit, both drain pipe and refrigerant pipe can be taken only from upper side.
Heat insulating process
• Using the attached drain hose heat insulator, lap the
connecting section and the drain hose without
clearance, and then tighten with two banding band.
• Covering the attached drain hose heat insulator, lap
the heat insulator (procured locally) to the drain pipe
without clearance.
5

REFRIGERANT PIPING

• If refrigerant gas has leaked during the installation work, ventilate the room immediately.
• If the leaked refrigerant gas comes in contact with fire, noxious gas may generate.
• After the installation work, confirm that refrigerant gas does not leak.
• If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas may
generate.
When the refrigerant pipe is long, set the support brackets to fix the pipe with 2.5 to 3m intervals. If the pipe is
not fixed, abnormal sound may generate.
Be sure to use the flare nuts attached to the indoor unit or those for R410A.
Permissible pipe length and permissible height difference
They are different according to the used outdoor unit. For details, refer to the Installation Manual attached to the
outdoor unit.
Piping material and dimensions
Piping material
Model MMC-
Gas side
Pipe size (mm)
Liquid side
• Use a clean and new pipe, and check that impurity such as dust, oil, moisture, etc. does not adhere in the pipe.
Lap covering connecting section
between drain pan and drain hose.
Drain
pan
Hose band
Attached heat insulator
* Tighten the banding band attached
heat insulator. Not pushed excessively.
WARNING
REQUIREMENT
Phosphor deoxidization joint-less pipe for air conditioner
AP0151H, AP0181H
Ø12.7
Ø6.4
10
Heat insulator
(procured locally)
Drain hose
Banding band Hose band
AP0241H to AP0481H
Ø15.9
Ø9.5
Lap the attached
heat insulation
the one end is put
on the other end
at the upper side.