Daikin GYEQ20AN Service Manual page 83

SiAUY361411EA
Main circuit board diagram
EV1 CN13 EV4 CN16
Note: The number of connectors, etc. will vary slightly depending on the model.
Configuring the switches on the BS unit
You have to configure these switches when you use a heating/cooling switching remote controller or
centralized cooling/heating remote controller.
Be sure to configure the switches before turning on the power. The settings are read by the
microcomputer when the device is turned on.
For more information on the settings, refer to the BS unit work instruction manual.
Wiring Change
After you finish wiring work and outdoor unit configuration work, perform "Wiring
change" by pressing and holding down SW2 on the main PCB for at least 5 seconds
with the power turned on prior to test run. Without "Wiring change," establishing
the communication may fail.
Device Overview
EV5 CN17 EV2 CN14 EV6 CN18
LED5
Main CPU
Writing
RUN 運転
IC1
Normal STOP
停止
DSW5
CN7 CN22 CN21
2 How to Perform a Test Run
EV3 CN15 CN8
DSW3
DSW1 DSW2
SW3
LED1 LED2 LED3
SW7
SW6
BACK
ENTER
SW5
SW2
CN6
Checker
チェッカー
Wiring change
配線換
CN23 CN1
– 5 –
Test Run Manual
CN20
DSW4
UP
SW4
NEXT
DOWN
F2
125V 10A
RY3
CN24
CN11 CN12
022670-00E
0FGHP-EN0841 DGJ002
72