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a. When it is moderate or slightly hot, choose ―weak refrigeration operation‖ (see ② for details)
b. When it is slightly cold, choose defrost pattern ( will appear on the screen). At defrosting
pattern, the refrigeration amount is set by the program, it can not be adjusted and there‘s no display;
the heating amount can be adjusted by operator according to requirements of the indoor temperature.
Other instructions
①. Machine set up: As long as you change the system operation pattern, the system will close the extrinsic
cycle air door automatically (enter internal circulation pattern). If operator has to use the extrinsic cycle
after changing the operation pattern or just start up, press .
②. The machine will automatically remember any patterns (expect circulation wind pattern) or the change of
set (including automatically remember the condition before shut down when turning off the machine),
when you use this pattern again, the machine will return to the last condition (including automatically
return to the condition before last shut down after start). It‘s very convenient for the users, e.g when start
the machine in the afternoon, it will automatically return to the using condition of the shut down in the
morning.
Matters need attention
(1) For the air-conditioner cabinet with dust screen, the dust screen must be monthly cleaned, or it will be
jammed by the dust, so the air in the cab cannot swimmingly flow through the heat exchanger and the
air-condition effect will be worse.
(2) Under special conditions, (e.g damp or not too hot environment, dust screen jam, circulating port jam by
foreign materials), using strong refrigeration for a long time, you will feel the wind is becoming smaller or
even no wind, this is the representation of air conditioner vaporization and frosting. The frost on the vaporizer
surface blocks the passage of air flow which makes refrigeration worse. But this is not malfunction, now you
should stop refrigeration for a moment, remove the blocking materials, choose big wind and restart
refrigeration after several minutes then it will become normal. After it‘s normal, do not choose small wind and
strong refrigeration at the same time, e.g you can choose medium refrigeration and weak refrigeration
(3) Please close the hot water valve before using the refrigeration system in summer or the aeration system in
spring or autumn. In winter, please open the hot water valve before using the heating system.
(4) When using heating system in winter, use it after the water temperature of engine increases.
(5) For the radiator interlinks to the water tank of the engine, so, once it leaks, the water tank will lack water
and the engine will overheat. In winter, protecting the radiator from being frozen crack is as important as the
water tank. To prevent the cooling fluid from freezing and causing the radiator or the water tank cracks, please
use the prescribed cooling fluid by the main engine plant. You‘d better effuse the cooling fluid if the engine
stops for a long time in winter, or it will freeze.
(6) The refrigerant will frostbite your skin and eyes especially. Furthermore, it will release poisonous light and
gas when meets the naked flame. So, any time before the refrigeration system is disassembled, the refrigerant
must be reclaimed or released at first, in order to avoid it sprays over skin or into eyes. During disassembling,
please ensure no open flame aside.
(7) Please run the refrigeration system for 5 to 10 minutes every half a month if it is not be used over a long
period of time.
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