Service manual

11-13
CONTROL SYSTEM
SM HADDCI 1-A.2 GB
Operation Indication
1. Cool ICON Lights up during Cool, Dry or Auto modes (not Fan). Even
though the mode can be changed automatically from Auto Cool to Auto
Heat, the Cool will light on.
2. Heat ICON Lights up in Red color during heat mode. It will not light up
during Auto Heat mode.
3. Blinks continuously during Indoor/Outdoor protections (according to the
relevant spec section). During heating the Heat Icon blinks. In Cool, Dry,
Or Auto modes the Cool Icon blinks.
Mode/Reset Button
As long as the filter counter is bigger than 0, the Mode/Reset button functions as
Mode switch. Once filter counter is 0, the Mode/Reset button functions as Reset
switch.
Mode Function:
Every short pressing , the next operation mode is selected, in this order: SB →
Cool Mode → Heat Mode → SB → …
In long pressing system enters diagnostic mode (refer to diagnostic mode Sect.)
Reset Function:
For short pressing:
Reset the filter counter. Refer to the diagram above for the filter LED operation.
7 segment LEDs
Refer to the diagram above.
During diagnostics mode the 7 segment LED will show the fault code (refer to
diagnostics Section).
11.10.2 Outdoor Unit Controller Indicators
Unit has three LED’s.
SB LED is ON when power is ON (230 VAC,even when no communication).
STATUS LED is ON when COMP is ON, and Blinks according to diagnostics mode definitions when
either fault or protection occurs.
FAULT LED Blinks according to diagnostics mode definitions when either fault or protection occurs.
11.11 Jumper Settings
11.11.1 Indoor Unit Controller
11.11.1.1 Hardware Jumpers
0 = Open Jumper (disconnect jumper).
1 = Close Jumper (connect jumper).
Self test Jumper – J1
OPERATION J1
SELF-TEST 1
NORMAL 0
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