Eight . EEPROM Control
When outdoor unit is supplied with power, if there is any inconsistency between EEPROM parameter and
checksum, EEPROM error.
When indoor unit receives EEPROM error signal from outdoor unit, it will display outdoor unit EEPROM error.
At this time, control and emergency operation are not acceptable.
It can only be cancelled through power off.
Nine . Error Detect Method
9-1. Indoor Temperature Sensor Error
In operation, an error occurs if the temperature is above 126
o
C or below – 31
o
C.
Operation will resume automatically when temperature is outside the above range.
9-2. Heat Exchange Temperature Sensor Error
In operation, an error occurs if the temperature is above 196
o
C or below – 53
o
C.
Operation will resume automatically when temperature is outside the above range.
In error condition, low load protection is cancelled.
9-4. Transmission Error
Based on the condition of communication between indoor and outdoor unit, in case outdoor unit fails to
receive signal within 20s after indoor unit sends out signal, transmission is abnormal. (except in the period of
first 2 mins when power is supplied.). It is confirmed as transmission error when outdoor unit receive the error
signal.
Transmission error is removed by stopping operation.
Ten . Special Function
10-1. Power-Off Compensation
a Entry Condition: Press sleep key 10 times in 7s and buzzer gives out 4 sounds and save the current status
into indoor unit EEPROM upon the entry.
b. On entering power-off compensation operation, indoor unit operates as per the following procedures:
Remote control emergency signal, and operates as per condition set by remote control and emergency setting
and save the current status into indoor unit EEPROM.
Main unit will operate as per condition set on panel board. And save the current status into indoor unit
EEPROM.
c. Exit Condition: Press sleep key 10 times in 7s and buzzer gives out 2 sounds
d. If timer and sleep features are set under power-off compensation condition, main unit memory is in a state
of shut-off if power is off and on again.
Domestic Air Conditioner
Model: H2SM-14HC03/R2
H2SM-18HC03/R2
27
18
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