Daikin REMQ14PY1 [290/491] Caution be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred

Daikin REMQ8PY1 [290/491] Caution be su re to t u rn off power s witch b efore connect or di s connect connector or p a rt s d a m a ge m a y b e occ u rred
6L(1%( 7URXEOHVKRRWLQJE\,QGLFDWLRQRQWKH5HPRWH&RQWURO
7URXEOHVKRRWLQJ 
7URXEOHVKRRWLQJ
NO
NO
NO
YES
YES
Shut the power supply off after
connection and then restart.
Replace coil of electronic
expansion valve.
Replace relay cables.
When restarting the operation
after shutting the power supply off
does not work, replace indoor unit
PC board.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Electronic
expansion valve is
connected to X7A of indoor
unit PC board.
Coil
check (1) of
electronic expansion valve
drive indicates
normal.
Relay
cables short circuit or
disconnected.
YES
1: How to check the coil of electronic expansion valve drive
Remove the connector for electronic expansion valve (X7A) from PC board. Measure the resistance
value between pins and check the continuity to judge the condition.
φ1
φ3
Yellow
(2)
Brown
(6)
Blue
(4)
φ2 φ4
M
The normal products will show the following conditions:
1 No continuity between (1) and (2)
2 Resistance value between (1) and (3) is approx. 300 Ω
3 Resistance value between (1) and (5) is approx. 150 Ω
4 Resistance value between (2) and (4) is approx. 300 Ω
5 Resistance value between (2) and (6) is a
pprox. 150 Ω
White (1)
Red (5)
Orange (3)
1) White
2) Yellow
3) Orange
4) Blue
5) Red
6) Brown

Содержание

Скачать