Daikin VRV III Manual page 313

Installation
Drain Piping Work
〈〈Rig the drain pipe as shown below and take measures against condensation. Improperly rigged piping
could lead to leaks and eventually wet furniture and belongings.〉〉
〈〈Insulate the drain hose inside the building.〉〉
(1) Carry out the drain piping.
FXMQ200 · 250MAVE
• A drain trap need not be installed.
• The diameter of the piping is the same as that of the connecting pipe (PS1B), and should be kept equal to or
greater than that of the connecting pipe.
(2) After piping work is finished, check drainage flows smoothly.
FXMQ200 · 250MAVE
• Open the water supply port, add approximately 1 liter of water slowly into the drain pan and check drainage flow.
CAUTION
• Drain piping connections
Do not connect the drain piping directly to sewage pipes that smell of ammonia. The ammonia in the sewage
might enter the indoor unit through the drain pipes and corrode the heat exchanger.
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FXMQ-MA