8-29
CONTROL SYSTEM
Revision Y05-01
Service Manual - DNC Series
SELF TEST for General Controller
STEP 1: TURNING ON THE POWER .
Turn ON the power, make sure that the unit is in operation.
STEP 2 : ENABLE SELF TEST MODE
1. Use the Remote control to send the first settings to display / indoor unit
Heat mode, High IFAN, set temperature 16 ºC , no I FEEL Sleep or any Timer settings needed.
2. Cover the IR transmitter components in the head of the remote control so that it will not
transmit the signals to the indoor unit display.
3. Use the Remote control to send the second settings to display / indoor unit
Cool mode, Low IFAN, no I FEEL Sleep or any Timer settings.
4. Uncover the remote control IR transmitter and change the temperature settings.
If the display/indoor unit receive the settings properly the following steps will start:
STEP 3 : MODEL SETTING CONFIRMATION
1.The STAND-BY and COOL LEDS will indicate the operation mode as following:
COOL LED
STAND-BY LED
OPERATION
MODE
OFF
ON
ST
OFF
OFF
RC
ON
OFF
SH
ON
ON
RH
2. Testing the Model configuration. selected by the COMP, STAND-BY, TIMER LEDS and
FILTER will indicate the model configuration as follows:
FILTER LED
TIMER LED
OPERATE LED
COMP
MODEL
OFF
OFF
OFF
ON
WNG
ON
OFF
OFF
ON
MBX
OFF
ON
OFF
ON
WNX
OFF
OFF
ON
ON
PRX
ON
OFF
ON
ON
WMN1
OFF
ON
ON
ON
EMD/LS
ON
ON
ON
ON
ECC-K / DNC
OFF
ON
OFF
OFF
WMN 4
ON
ON
OFF
OFF
PXD
ON
OFF
ON
OFF
WMN 2/WHX
ON
ON
ON
OFF
WMN 3
In this term the step motor will turn to HOME POSITION.