Mitsubishi Electric e Series Service Handbook page 6

Please build the water circuit so that it is a closed
system.
Do not use water directly for showers or other applications.
Do not allow other heat source water to mix with the water
circuit.
To ensure proper operation of the unit, periodically
check for proper concentration of anti-freeze.
Inadequate concentration of anti-freeze may compromise the
performance of the unit or cause the unit to abnormally stop.
Take appropriate measures against electrical noise
interference when installing the air conditioners in
hospitals or facilities with radio communication
capabilities.
Inverter, high-frequency medical, or wireless communication
equipment as well as power generators may cause the air
conditioning system to malfunction. Air conditioning system
may also adversely affect the operation of these types of
equipment by creating electrical noise.
Check the water system, using a relevant manual as a
reference.
Using the system that does not meet the standards (including
water quality and water flow rate) may cause the water pipes
to corrode.
HWE20010
To reduce the risk of power capacity shortage, always use a
dedicated power supply circuit.
Have a backup system, if failure of the unit has a potential for
causing significant problems or damages.
This appliance is intended to be used by expert or trained
users in shops, in light industry and on farms, or for
commercial use by lay persons.
This appliance is Electromagnetic Compatibility
Directive Class A. When it uses at residential
environment, it may cause electromagnetic interference.
User may be asked to prepare the properly way.
Other products installed in the same environment have the
risk of malfunction.
Refrigerant R32 is flammable. Do not use a naked-flame
type detector.
Store the unit in a space with sufficient area so that the
refrigerant concentration in the air will not reach a dangerous
level in the event of refrigerant leakage.
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