Fixed Frequency Operation; Test Program - Haier 2U14CS1ERA Service Manual

operate according to the set mode and neglect the communication signals of the outdoor system.
However, it has to send signals to the outdoor system.
* Quitting condition: This mode can be quitted after receiving the quitting signal from the remote
control or urgency system. The indoor system thus can quit the single operation mode.
5.1.17 Power cut compensation.
* Entering condition: Press dormant button 10 times within 7 second, the buzzer will ring 4 times
and the present system status will be stored into the EEPROM of the indoor system.
* After entering the power cut compensation mode, the processing of the indoor system should
be as the followings:
Remote control urgency singal:
conditions, the present status will be stored into the EEPROM of the indoor system.
* Quitting conditions: Press dormant button 10 times within 7 seconds and the buzzer will ring
twice.

5.1.18 Fixed frequency operation.

1. Fixed cooling: a. under G code condition: high speed cooling, set 16 , press temperature
'-' key and the set key at the same time. The system will enter the fixed frequency operation after
the buzzer rings twice.
b. The proceeding programs are as the follows:
Entering the fixed frequency operation, you can set the fixed strength location 1 and send the
coolng signal to the outdoor system. Meanwhile, you can fix the indoor system at high speed
mode, the location of the airflow directin board can be switched to the maximal position.
c. Quitting condition: The fixed frequency cooling can be quitted after receiving the remote signal,
and the system will enter the remote setting status.
2. Fixed heating: a. under G code condition: high speed heating, set 30 , press temperature
'+' key and the set key at the same time. The system will enter the fixed frequency operation after
the buzzer rings twice.
b. The proceeding programs are as the follows:
Entering the fixed frequency operation, you can set the fixed strength location 1 and send the
heating signal to the outdoor system. Meanwhile, you can fix the indoor system at high speed
mode, the location of the airflow directin board can be switched to the maximal position.
c. Quitting condition: The fixed frequency heating can be quitted after receiving the remote signal,
and the system will enter the remote setting status.

5.1.19 Test program

First, connect the test program terminal on the mainboard, then connect the system to the power
circuit. The test program will operate as follows.
HV series display: The buzzer rings for one time—the signal will be sent to outdoor system for
0.5 second— the violet is sent for 0.5-- the background light turns to white—the back ground light
turns to white—the background light turns to white—the background light is fully lighted for 0.5
2U14CS1ERA-SM
operate according to the remote control and the urgent
21
Functions and control
Domestic Air Conditioner