Kokido K2O K880BX/EU, Руководство пользователя и инструкция по установке

Страница: 24 / 60

23
In other words, the value of defrosting calculagraph shows the continuous low temperature time of the
outdoor machine.
The controller will turn on the compressor and cross valve after defrosting, and the heat pump is used
for defrosting. The controller can check the defrosting effect with the temperature of outdoor machine,
if the temperature of outdoor machine goes up to the “defrost end temperature”, the controller will turn
off the function of defrosting. If the defrosting time is above “max defrost time”, the controller will turn
off defrosting forcibly.
The process above can only run in heating state, in other words, the controller will not turn on
defrosting in non-heating state.
Compressor and fan state in different state is showing below: (1 means on, 0 means off)
State Compressor Output Fan Output
Heat 1 1
Defrost 0 1
Stand By 0 0
External alarm
The controller can connect a switching value as external alarm source (Pin 4, 5), when the external
alarm occurs, the controller stops, displays the alarm code “A11”. External alarm signal has 5 modes
(F50):
0: without external alarm
1: always open, unlocked
2: always open, locked
3: always closed, unlocked
4: always closed, locked
“Always open” means in normal state, external alarm signal is open, if closed, the controller will give
an alarm; “Always closed” is on the contrary. “Locked” means that when external alarm signal
becomes normal, the controller is still in the alarm state, and it needs to press any key to resume.