DC Inverter U-match Series Duct Type Unit
13
4.2.2 Condensate Drainage of the Outdoor Unit (Only for the heat
pump unit) (Fig. 4.9)
(1). It is required to install a drain pipe for the outdoor unit to drain out the
condensate water during heating operation (only for the heat pump unit).
(2). When installing the drain pipe, apart from the drain pipe mounting hole, all
other holes should be plugged so as to avoid water leakage (only for the heat
pump unit).
(3). Installation Method: Insert the pipe joint into the hole Φ25mm (1inch) located
at the base plate of the unit and then connect the drain pipe to the pipe joint.
Fig. 4.9
4.3 Installation of the Connection Pipe
4.3.1 Flare Processing
(1). Cut the connection pipe with the pipe cutter and remove the burrs.
(2). Hold the pipe downward to prevent cuttings from entering the pipe.
(3). Remove the flare nuts at the stop valve of the outdoor unit and inside the
accessory bag of the indoor unit, then insert them to the connection pipe, after
that, flare the connection pipe with a flaring tool.
(4). Check if the flare part is spread evenly and there are no cracks (see Fig. 4.10).
Fig. 4.10
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