2. FUNCTIONS
- R HTR
- COMP
A. Condition of LOW RT
- RT sensor below 20.7
℃
- When the RT sensor is over 21.7
℃
, the system comes to be “General Operation Mode”.
- When the RT sensor is between 20.7
°
C to 21.7
°
C, the system keeps the previous mode.
B. Control
- When the temp of RT sensor is between 13.8
°
C to 20.7
°
C, COMP on/off temp is 0.67
°
C UP
- When the temp of RT sensor is below 13.8
°
C, COMP ON/OFF temp is 1.0
°
C DOWN
CONTROL OBJECT
INPUT
RT
2-4. Function of Low Ambient Temperature (RT)
COMP
It takes several minutes to protect Compressor:
(1) 6 minutes after Comp off
(2) 30 minutes at operation of Low RT, but 6 minutes when the doors open more than 20 seconds
CONTROL OBJECT
INPUT
2-5. Prevention of Compressor Restart
Buzzer
A. When Forced Defrost Mode start, the buzzer rings 3times.
B. After 2 seconds power’s on, the buzzer rings 3 times.
C. At Short Circuit Test, the buzzer rings 1 times.
D. When door opens, the buzzer rings every 1 minute for 5 minutes.
CONTROL OBJECT
INPUT
- Forced Defrost Mode start
- Door Switch
- Initial Power Input
2-6. Buzzer Sound
N/A
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