Midea MWH-35i, Operation Manual

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HOW TO USE ELECTRIC WATER HEATER
1. OPERATING OF THE UNIT
Switch on the power supply, the unit will take self-inspection for 2s, ELCB
green indicator light will be on (under the condition of no electricity leakage).
When the water flow exceeds 1.2L/min, rotate the knob clockwise to switch
on heating power rotate switch, heating indicator light will be on, the unit
start to work.
2. LEAKAGE TESTING
When the water heater is working normally (including working state of PUMP),
press TEST button, if the leakage test circuit is no problem, ELCB green
indicator light will be off, and the unit will not heat. Press RESET, testing will
be canceled, and ELCB green indicator light will be on, the unit will be back to
working state set before. If the circuit leaks, press RESET button can’t cancel leakage
testing, ELCB indicator light keeps off, it means the water heater has problems and
can’t be used; all the buttons are invalid, red and green indicator lights are all off,
heating is stopped, and pump will be closed.
3. TO ADJUST WATER FLOW
Rotate the handle of water adjusting valve to adjust the water
4. ELECTRICITY LEAKAGE PROTECTION
When the electricity leakage testing circuit is working normally, if the leakage current is
bigger than certain value between 7.5mA and 15mA, the POWER red and ELCB green
indicator light will be off, no heating; it can only be used after the failure is excluded.
(When electricity leakage is tested, red and green indicator lights are all off, stop heating
and close the pump system.)
5. TO ADJUST WATER TEMPERATURE
a. Rotate the handle of water adjusting valve to adjust to proper water
b. Adjust power by rotating knob, clockwise rotate, power will be increased and water
temperature increase accordingly or vice versa.
6. TO ADJUST WATER PRESSURE
a. The water pressure is increased when Pump is started;
b. Rotate Pump knob to adjust water pressure, rotate clockwise, water pressure is
increased and vice versa.
7. TO ACTIVATE PUMP FUNCTION (MHW-35MPC ONLY)
When the unit is working under normal condition, press “PUMP” and pump will start
immediately. Pressing “PUMP” again, Pump function will stop immediately.
USE AFTER OVERHEATING PROTECTION
If the water is small and power is high while using the unit, outlet water temperature
is rather high; the unit will stop heating automatically. At this time, please lower
the power and adjust the water faster in order to avoid inconsistency of water
temperature.
NOTE:
1. For time using, ensure electrify after the unit is fully with water and there is
stable water comes out from shower head.
2. The electric water heater may be damaged if the water hardness is too high.
To guarantee the normal service life, please install and put it into use on condition
that the local water hardness is less than 450mg/L (CaCO3)
Fig.5