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7. PRECAUTIONS
Do not perform operations to the controller with wet hands.
Do not install the wired controller at a wet place.
Do not beat, throw, or frequently disassemble and assemble the wired controller.
The water outlet temperature of the water tank is set to 50°C before delivery. Users can adjust
the temperature as required when the unit is running. However, if the temperature is too high, the
coefficient of performance (COP) decreases.
When the temperature setpoint is achieved, the unit stops automatically and the wired controller
displays the KEEP icon. If the water temperature at the water acquisition position or at the bot
-
tom of the water tank decreases by 5°C to 10°C, the unit will start to heat up water again.
APPENDIX: ERRORS AND SYMPTOMS
Please contact the KAISAI appointed service center in case of any of following conditions.
The unit is shut down and one of
below symptoms is displayed on
the controller.
Errors
E1
High pressure protection
E4
Discharge protection
E5
Compressor overload protection
E6
Communication error
C5
Outdoor jumper error
F3
Outdoor temperature sensor error
F4
Discharge temperature sensor error
F6
Outdoor heat exchanger coil temperature sensor e rror
Fd
Suction temperature sensor error
FE
Upper Water temperature sensor error
FL
Middle Water temperature sensor error
L6
Insufficient unit capability
PL
Compressor DC busbar under voltage protection
PH
Compressor DC busbar over voltage protection
PA
Compressor AC current protection (input side)
H5
Compressor IPM module protection
HC
Compressor PFC abnormality
Lc
Compressor PFC abnormality
Ld
Compressor Missing phase
P0
Compressor Drive module resetting
P5
Compressor current protection
LF
Compressor power protection
Pc
Compressor Current sensor malfunction
H7
The compressor motor in loss of synchronization
