Midea MT-200R20E20 - Check; Electric Auxiliary Heater Quality Inspection

18
6 CHECK
Before switching on the unit, read following recommendations:
• When the installation and parameter setting are completed, cover all the sheet metal of the unit well.
• The unit should be maintained by professionals.
NOTE
Forthewatertankwithelectricauxiliaryheater,pleasecheckthequalityoftheelectricauxiliaryheateraccordingtothemethod
in Chapter 6.1 before the Long-term operation to avoid damage to the unit or personal injury.
6.1Qualityinspectionofelectricauxiliaryheater
Table 6-1
No. Description Image Notice
1
After the unit is powered on, press the power
button on the wired controller and the screen
willashbriey.
The unit shall be installed according to the
requirements of the corresponding specications.
Before the unit is powered on, please ensure that the
system operates in the environment where the water
tank is full of water to prevent damage to the electric
auxiliaryheatpipe.
2
Pressandholdthe“√”buttonuntilthemanual
electric auxiliary heater function icon “ ”
appears.
If the wired controller screen is locked and displays
theicon“ ”,pressandholdthe“∧”and“∨”buttons
simultaneously for several seconds. When the “ ”
icon disappears, it indicates that the wired controller
screen is successfully unlocked.
3
Pressthe“√”buttonagain,andtheicon“ ”
will appear, indicating that the manual electric
auxiliaryheaterfunctionhasbeenturnedon.
Press the “√” button to switch the manual electric
auxiliaryheaterfunctionbetweenONandOFF.
4
Press the “≡” button to return to the main
interface. If the manual electric auxiliary
heaterfunctioniconandtheelectricauxiliary
heater operation status icon are displayed on
the screen of the wired controller, it means that
the manual electric auxiliary heater function
hasbeenturnedon,andtheelectricauxiliary
heater is in operation status. If not, please
check whether steps 1 to 4 are correct.
5
After the manual electric auxiliary heater
function is turned on, wait for 5min to make
the electric auxiliary heating operate stably
in the environment with water, check whether
the leakage protection switch trips. If there is
atrip,immediatelycuto󰀨thepowerandnotify
the professional maintenance personnel.
In this case, it is usually need to replace the electric
heating pipe.
6
If no tripping occurs, please turn o󰀨 the
manualelectricauxiliaryheaterfunctionafter
unlocking the wired controller screen. Then
press and hold the “√” button to enter the
electricauxiliaryheaterfunctioninterface.
7
After entering the electric auxiliary heater
functioninterface,pressthe “√” buttonagain
tocancelthemanualelectricauxiliaryheater
function, and the icon display will change from
“ ”to“ ”.
8
Press the “≡” button to return to the main
interface, and you can nd that the manual
electricauxiliaryheaterfunctioniconandthe
electricauxiliaryheater operationstatusicon
are disappeared, indicating that the manual
electric auxiliary heater function has been
closed.