Daikin VRV REYQ96MTJU Design, Installation & Testing Instruction page 50

Installation
Grouped Drain 1. It is standard work practice to make connections to the main pipe from above. The pipe down
Piping
2. The pipework should be kept as short as possible and the number of indoor units per group kept
Use of an If a drain pan made of polystyrene foam is used then an auxiliary drain hose (flexible) is also
essential. A flexible drain hose permits the drain socket and drain pipe to be connected without
Auxiliary Drain
difficulty and prevents any undue strain being placed on the drain pan.
Hose (Flexible)
Important points
1. The drain pipe should be at least equal in size to that of the indoor unit.
2. The drain pipe is thermally insulated to prevent the formation of condensation inside the pipe.
3. The drain up mechanism should be fitted before the indoor unit is installed and when the
4. All connections should be secure. (Special care is needed with PVC pipe)
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from the combination should be as large as possible.
to a minimum.
electricity has been connected some water should be added to the drain pan and the drain
pump checked to see that it is functioning correctly.
The use of a colored adhesive with PVC pipes will help you to remember to connect them up.)
Si39-406
General Information