Check After Installation And Test Operation - Friedrich MWM12Y1J Installation And Operation Manual

Check after installation and test operation

Items to be checked
Is unit installed correctly?
Have you done the refrigerant leakage test?
Is equipment insulated properly?
Is water drainage good?
Is supply voltage in accordance with the
rated voltage marked on the nameplate?
Is the electric wiring and piping
connection installed correctly and securely?
Has the unit been connected to a secure
ground connection?
Is the power cord sized correctly?
Has the air dicharge and inlet been covered? It may cause insufficient cooling(heating)
Has the length of connection pipes
and refrigerant capacity been recorded?
1. Before test operation
(1) Do not switch on power before installation is finished completely.
(2) Electric wiring must be connected correctly and securely.
(3) Cut-off valves of the connection pipes should be opened.
(4) All scraps and waste fron installation have been removed?
2. Test operation method
(1) Switch on power, press "ON/OFF" button on the wireless remote control to start
the operation.
(2) Press MODE button, to select the COOL, HEAT, FAN to check whether the
operation is normal or not.
Check after installation
Test Operation
21
Possible malfunction
Unit may fall, shake or create excessive noise.
Leak of refrigerant can occur and
system will not cool.
It may cause condensation and dripping.
It may cause condensation and dripping.
It may cause electric malfunction
or damage the part.
It may cause electric malfunction
or damage the part.
It may cause electrical leakage.
It may cause electric malfunction
or damage the part.
capacity.
The refrigerant capacity is not accurate.