Haier H2SM-(9+12)HV03/R2 Service Manual page 42

Coldair proof operation
1. The indoor operation within 4 minutes after the start up is as the following diagram, the
air speed can be raised only after the speed has reached a certain level.
Heat start temp 1
2
Heat start temp
3
Heat start temp
4
Heat start temp
2. 4 minutes after the start up of the indoor fan, the light airflow and the low airflow will
be turned to the set speed airflow.
3. In the cold air proof operation, the fan won¡ ¯ t stop after the start up.
4. During the cold air proof operation, the indoor system will continuously send ¡ ® indoor high
speed¡ ¯ signals to the outdoor system.
* Residue heat sending. The indoor fan will send the residue heat at a low speed for few seconds.
If other conditions are satisified, when the compressor stops, the indoor system will operate at
a light speed. The indoor fan will stop when the coil temperature is below the ¡ ® heat start temp
4¡ ¯ .
* Defrosting. When the system receives the defrosting signal from outdoors, the indoor fan will
stop and the indoor temperature display won¡ ¯ t change. At the time, any indoor coil malfunctions
will be neglected. When the outdoor defrosting finishes, the coil malfunction will still be neglected
until the compressor has been started up for 30 seconds. The indoor temperature display will not
change and the system operates at the cold air proof mode.
* Automatic heating temperature compensation: when the system enters the heating mode, the
temperature compensation will be added. When the status is switched off, the compensation will be
erased.
2. Power operation
a. the system enters the mode after receiving the ¡ ® power signal¡ ¯ .
Send power operation signal to the outdoor system.
power operation for 15 minutes.
The power operation stops or finishes after the 15 minutes.
The mode change finishes the power operation.
Entering ¡ ® soft¡ ¯ , you can have normal operation or signal control such as timing to finish the
power operation.
When the system is at the automatic option with the power/ soft function, if the system enters the
cooling mode, the cooling power/ soft function will be offered; if the system enters the heating
mode, then the heating power/ soft function will be offered; if the system enters the airflow mode,
there will be no power/ soft function.
Set speed
Low
Light speed
Fan/off
Fan/off
Air Conditioner
Keep the high
speed. The fan
doesn't stop
37
Edition:2006/1/10