Main Features Of Airrex Dc Heater - Airrex AD Series Operating Instructions & Parts Manual

Main Features of Airrex DC Heater

AV (Activity Variable) Heating Element
"AV Heating Element", which is applied to this product, is the world-first invented excellent heating element.
Heating value of "AV Heating Element" is variable according to the ambient temperature, so the heating value
can be actively changed with a range of 30% when opening or closing the doors. With a long-time usage,
the performance is not deteriorated, and it can be used for a long time. This is a very safe DC heating
element due to its low surface temperature.
Automatic Low Voltage Detection and Shut Down
This product automatically monitors the problems of all power supply lines for generator, condenser, and
power supply circuit so that the heater can normally operate. If any problem is detected, it cuts the power
automatically to prevent inabilities to start engine and to provide safety.
When abnormal condition is detected with the power supply, indicator (red color) is lit on the remote
controller
and the power supply is cut if the condition is not solved within 3 seconds.
For safety, this product monitors power supply condition in real time. Thanks to the design of safety memory
circuit, when monitoring circuit cuts the power to heater, the heater is not restarted even if the circuit is
recovered. Therefore, before starting the heater again, it is necessary to delete all memories by pressing
OFF button of the remote controller for 2 seconds or longer and then press the Power button.
(For the safe and efficient use of product according to the usage environment, low-voltage limit is set in
2 modes. To change the basic value, refer to how to change the mode (See 6.4 for the details).
Temperature Setting
This product is designed to change the temperature by 1 ℉ , from 32 ℉ to 104 ℉ . From the remote controller,
press ▲ button on the left-side temperature adjustment part to increase the temperature and ▼ button to
decrease the temperature. When the ambient temperature reaches the setting temperature, power supply is
cut, and when the ambient decreases 2 ℉ from the setting temperature, power is supplied again so that
the temperature can be controlled with a hi gh accuracy.
Overheating Prevention
To provide maximum safety, double-layered overheating protection is equipped with this product.
When the heater is covered or blocked, blower motor broken, or foreign matter interrupts the ventilation
causing overheating problems, the temperature sensor that is attached to the heating element will turn off
the power supply for safety.
SLOW STOP Function
When the use of heater is completed and the power supply is cut, latent heat of the heater is fully discharged
for safety. When the power supply is cut while the heater is operating, the blower motor slowly reduces its
speed to discharge the latent heat before stop the operation.
SLOW START Function
The heating element is warmed up gradually, according to the heating intensity increasing, the blower
motor's revolution is increasing. This is a fuction to prevent cold wind supply by increasing the motor speed
slowly according to the heating element warming up.
rev0
5