Toshiba Carrier MMD-AP0094SPH2UL Manuale di installazione - Pagina 8
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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
Flexible hose
Use the attached flexible hose to adjust centre discrepancy of the hard vinyl chloride pipe or to adjust the angle.
• Do not use the flexible hose as stretched, or do not deform it more extent than that in the following figure.
• Fix the soft end of the flexible hose with the attached hose band.
• Use the flexible hose on a horizontal level.
OK
Top view
Side view
Air discharge
13-EN
As long as possible
(Approx. 3.9" (100 mm))
Arched shape
Downward slope
Trap
1/100 or more
VP30
Incorrect
NO GOOD
Side view
Air discharge
max
Riser (Trap)
45°
Side view
Air discharge
max
90° Bend
45°
– 7 –
Condensate drain connection
for ducted indoor unit, metric
Attached hose
size (not suitable for US size)
band
PVC stub.
Soft socket
Adhesive inhibited:
Use the attached flexible hose and hose band for connecting the
drain hose to the clear drain socket.
If applying the adhesive, socket will be damaged and cause water
leakage.
Drain pipe
connecting port
(Transparent)
Standard 1" PVC drain pipe installed
by field. Can also be converted at the
adapter to any other size/material
Attached flexible
that may be required to comply with
hose
applicable codes, or regulations.
Attached drain
Condensate drain connection
adapter (provided with indoor
Hard socket
socket
unit). converts metric size unit
drain connection to standard
1" US size PVC connection.
(Hard socket)
Align the attached hose band to
the end of hose, set the
tightening position upward, and
then tighten it.
Standard 1" PVC drain pipe installed by
field. Can also be converted at the
adapter to any other size/material that
Flexible hose
may be required to comply with
(Accessory)
applicable codes, or regulations.
Condensate drain connection
for ducted indoor unit, metric
size (not suitable for US size)
PVC stub.
14-EN