Drain Piping - Toshiba RAV-HM901FT-E Installation Manual

 Installation of wireless remote controller (Sold separately)
CAUTION
When installing a wireless remote controller, be sure to connect a wired remote controller to make a 2-remote controller
system. In that case, make the wired remote controller the master remote controller.
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The signal receiving unit with wireless remote controller can receive a signal by distance within approx. 7 m. Based
upon it, determine a place where the remote controller is operated and the installation place.
• Keep 1 m or more from the devices such as television.
(Disturbance of image or noise may be generated.)
• To prevent a malfunction, select a place where the remote controller is not influenced by a fluorescent light or
direct sunlight.
• To individually operate two indoor units installed in the same room, switch setting of signal receiving unit and the
wireless remote controller.
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Drain piping

CAUTION
• Following the Installation Manual, perform the drain piping work so that water is properly drained. Apply a
heat insulation so as not to cause a dew condensation.
Inappropriate piping work may result in water leakage in the room and wet furniture.
• After opening the knockout hole, deburr the edge.
Touching burrs adhered to opening of the knockout hole may cause an injury.
• Following the Installation Manual, perform the drain hose work. Inappropriate drain hose work may result in
generation of slime in the drain hose and water leakage in the room.
NOTE
• The drain pipe and drain hose 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.
• Be sure to connect the drain hose and drain pipe at the outside of unit and fix them.
• If clearance occurs between piping/wiring and drain hose in opening the knockout hole, apply putty to the clearance.
• Restrict the length of the traversing drain pipe to 20 meters or less. For long pipe, provide support brackets at intervals
of 1.5 to 2 meters to prevent flapping. Do not provide any air vents. Otherwise, the drain water will spout, causing
water to leak.
• For collective piping, the pipes must be equivalent to VP30 and sloping downward at an angle of 1/100 or more.
Provide the indoor drain piping and the refrigerant piping with proper heat insulation. (Foamed polyethylene foam,
thickness: 6 mm or more)
• After piping work has been completed, remove the air intake grille and pour water in the drain pan to check water
drain and that there is no water leakage from connecting part of the drain hose.
• After check of the water drain, attach the air intake grille as before.
• If the pipe passes through a fire retarding division, apply incombustible material (putty) to the clearance at penetration
part.
 Pipe material, size and heat insulator
The following materials for piping work and insulating process are procured locally.
Pipe material Hard vinyl chloride pipe (PVC pipe) VP20 (Internal diameter: 20 mm, external diameter: 26 mm)
Heat insulator Foamed polyethylene foam, thickness: 6 mm or more
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