Midea R410A Direct Heating Type HPWH 50Hz Technical Manual MCAC-HTSM-201906
45
Do not operate the unit with a wet hand. An electric shock may be caused.
The installation height of power supply should be over 1.8m, if there is any water spattered, separate
the power supply from water.
A one-way valve must be installed on the water inlet side, which is available from accessories.
Arrange the drain pipe to ensure smooth draining. Improper drainage work may cause wetting of the
building, furniture, etc.
Do not touch the inner parts of the controller. Do not remove the front panel. Some parts inside are
dangerous to touch, otherwise a machine malfunction may be caused.
Do not turn off the power supply. System will stop or restart heating automatically. A continuous power
supply for water heating is necessary, except service and maintenance.
2 Unit installation
Except for accessories supplied by factory, the water flow switch should be supplied by site. The cut-off value
of switch should be more than V (V=0.1m
3
/h × Amount of units). The water flow switch is used to detect the
circulating water flow volume.
A single unit must be installed a set of water flow switch and wired controller, several units parallel
connected can choose one or more sets of above accessories as required.
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