Heating Operation Mode - Haier 2U14CS1ERA Service Manual

* timing system on/off function.
* Dormant control function.
5.1.4

Heating operation mode.

* temperature control range: 16---30
* temperature difference:
* control feature: the temperature compensation is automatically added and the system will send
the heating signals to the outdoor system.
If Tr Ts, the outdoor compressor is turned on, the indoor fan will be at the cold air proof mode.
If Tr>Ts+3, the outdoor system is turned off, the indoor fan will be at the heat residue sending
mode.
If Tr<Ts+3 the outdoor system will be turned on again, the indoor fan will be at the cold air proof
mode.
*Indoor fan control
manual control: You can choose high, medium, low and automatic speed control.
Automatic: When Tr<Ts, high speed.
When the airflow speed has no delay from the high to low switching, the speed should be
delayed for 3 minutes (remain at high speed for 3 minutes.) before the next switch.
*Airgate location control: the location for the airgate can be set according to your needs.
Coldair proof operation
1. The indoor operation is as the following diagram, the air speed can be raised only after the
speed has reached a certain level.
2.. In the cold air proof operation, the fan won't stop after the start up.
3. 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 12 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 23 .
5.1.5 strength operation
2U14CS1ERA-SM
1
When Ts=<Tr=<Ts+2 , medium speed.
When Tr> Ts+2 , low speed.
16
Functions and control
Domestic Air Conditioner