Drain Piping - Toshiba Carrier MMD-AP0074BH2UL-1 Installation Manual

2
Pull out the filter rack, and set the air filter (locally procured) in it.
Air filter
(locally procured)
Filter rack
3
Push the filter rack in fully and reattach the cover plate. (Screws x 2)
21-EN
Air filter
(locally procured)
Screws
– 11 –
5

Drain piping

CAUTION
Condensate drain piping installation and material must comply with applicable codes and regulations for the
specific indoor installation.
The condensate drain piping must be insulated to prevent sweating. All material used in the plenum space above
the ceiling must comply with applicable codes and regulations. If the condensate drain exits the unit downward
(gravity flow) the slope and suspension methods used for the condensate drain piping must comply with applicable
codes and regulations.
• The drain pipe must be sloping downward (at an angle of 1/100 or more), and do not run the pipe up and down
(arched shape) or allow it to form traps. Doing so may cause abnormal sounds.
• Restrict the length of the traversing drain pipe to 65.6' (20 m) or less. For a long pipe, provide support brackets
at intervals of 4'11" to 6'7" (1.5 to 2 m) to prevent flapping.
• Install the collective piping as shown in the following figure.
• Do not provide any air vents. Otherwise, the drain water will spout, causing water to leak.
• Do not allow any force to be applied to the connection area with the drain pipe.
4'11" to 6'7"
Support
(1.5 to 2 m)
bracket
(Collective
piping)
Heat
insulator
Downward slope
1/100 or more
 Connecting drain pipe
Insert the drain socket into the connector until the socket can go no farther.
REQUIREMENT
• Connect the hard vinyl chloride pipes certainly so that water does not leak by using adhesive agent for vinyl chloride.
• It takes some time to dry and indurate the adhesive agent. (Refer to the manual of adhesive agent.) Do not apply any
extra force on the connecting section until the adhesive agent dried.
Condensate drain
connection for ducted
Indoor unit
fan coil unit, metric size
(not suitable for US
size) PVC stub.
Condensate drain
connection adapter
(provided with fan coil unit).
converts metric size unit
drain connection to
standard 1" US size PVC
connection.
As long as possible
(Approx. 11.8" (300 mm))
Arched shape
Downward slope
Trap
1/100 or more
VP30
Incorrect
Standard 1" PVC drain pipe installed
by field. Can also be converted at the
adapter to any other size/material
that may be required to comply with
applicable codes, or regulations.
22-EN