10
Technical Information
Service Manual
6.2 Introduction of Basic Mode Function
1. Basic Function
(1) Free drying
a. When set humidity ≤ ambient humidity -5%, compressor starts working and fan motor works at set fan speed.
b. When set humidity ≥ ambient hu5%, compressor stops and fan motor stops in 3 min’s delay at set fan speed.
c. When ambient humidity -5% < set humidity < ambient hu5%, if compressor is working, it works according to condition a; if
compressor is stopped, it works according to condition b; if unit is in condition c when started up, compressor will not work and fan
motor will stop in 3 min’s delay.
(2) Continuous mode
This mode is not related to set humidity. Compressor starts to work and fan motor works at high speed. User may set the fan speed
during operation.
(3) Basement mode
Set humidity is 45% and fan motor runs at high speed. Unit starts drying. User may set the fan speed during operation. The working
status of compressor and fan motor is the same as described in condition a, b, c of free mode.
(4) Living Room mode
Set humidity is 50% and fan motor runs at medium speed. Unit starts drying. User may set the fan speed during operation. The working
status of compressor and fan motor is the same as described in condition a, b, c of free mode.
(5) Bedroom mode
Set humidity is 55% and fan motor runs at low speed. Unit starts drying. User may set the fan speed during operation. The working
status of compressor and fan motor is the same as described in condition a, b, c of free mode.
2. Protection Function
(1) Working temperature range
a. Detect the unit after energized, when 2
o
C ≤ Tamb. ≤45
o
C, the unit is running normally; when Tamb. < 2
o
C or Tamb. > 45
o
C, the
compressor stops, and fan will run with the detected temperature humidity;
b. During operation, when Tamb. < 2
o
C or Tamb. > 45
o
C, the compressor stops, and fan will run with the detected temperature
humidity; when 2
o
C ≤ Tamb. ≤ 45
o
C, the compressor will be started up.
(2) Compressor Protection
a. After energization, under any situation and after compressor stops, it will restart 3min delay at least.
b. Under operation state except temperature sensor malfunction, on/off button, water-blow protection, after compressor starts up, it will
stop after it runs for 3min at least.
(3) Detection for temperature sensor malfunction (Temperature sensor malfunction is AD value≤5 or 250≤AD value)
a. When the unit is energized, it is detected that the ambient temperature sensor is open or short circuit for 5s, compressor and fan
stops, LED indicator is off, buttons are invalid, and nixie tube displays “F1”.
b. It is detected that the pipe temperature sensor is open or short circuit for 5s, compressor and fan stops, LED indicator is off, buttons
are invalid, and nixie tube displays “F2”.
c. If humidity sensor short circuit is detected for continuously 5 seconds, compressor and fan motor will stop and LED lights go off.
Buttons will be null and dual-8 displays L1.
d. If there are multiple malfunctions, malfunction codes will be displayed in turn.
(4) Water blow protection (off switch)
a. The water blow protection will be occurred when the water level of water tank is exceeded. After water blow protection, compressor
stops and fan stops after 3mins. If water blow protection occurred for 3min, the buzzer will stop after it gives out a beep for 10s,
indicator of water blow will blinks and all the buttons are invalid. When the water level or assembly of water tank resume to normal,
signal of water blow protection will cancelled, indicator is off, buzzer stops to give out a beep and resume to normal operation state.
b. When the unit is off, water blow protection is occurred, water blow indicator blinks, compressor and fan stops, all the buttons are
invalid except on/off buttons. When the unit is on, water blow indicator blinks, buzzer will not give out a beep, compressor and fan
stops.
3. Other Functions
(1) Power-off memory
Upon power failure, the unit after power recovery will automatically start to run according to memory content.
(2) Nixie tube display
When the unit is running, it will display current humidity, preset temperature will be adjusted by “+” or “-”, it will resume current humidity
after the set is finished for 5s.
(3) Filter alarm function
a. After fan runs for 250s totally, filter lamp is on to remind customer clean filter.
b. When the unit is off, the filter lamp is off; the filter time can not be clearance when the unit is off.
