DC Inverter U-match Series Duct Type Unit
19
When the height difference between
the indoor unit and outdoor unit is larger
than 10m (32-
should be employed for every 6m
(19-2/3 feet).
4.5 Installation of the Drain Hose
(1). It is not allowed to connect the condensate drain pipe into waste pipe or other
pipelines which are likely to produce corrosive or peculiar smell to prevent the
smell from entering indoors or corrupt the unit.
(2). It is not allowed to connect the condensate drain pipe into rain pipe to prevent
rain water from pouring in and cause property loss or personal injury.
(3). Condensate drain pipe should be connected into special drain system for air
conditioner.
4.5.1 Installation of Drain Piping
Install the drain hose in accordance with the instructions in this installation manual and keep the
area warm enough to prevent condensation. Problems with the piping may lead to water leaks.
(1). Install the drain hose with downward gradient (1/50 to 1/100) and no risers or
traps are used for the hose (Fig. 4.21).
(2). Be sure there is no crack or leak on the drain hose to avoid the formation of air
pocket (Fig. 4.21).
(3). When the hose is long, install supporters (Fig. 4.22).
(4). Always use the drain hose which has been insulated properly.
Fig. 4.21
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