7URXEOHVKRRWLQJE\,QGLFDWLRQRQWKH5HPRWH&RQWURO 6L(1
7URXEOHVKRRWLQJ
³JC´2XWGRRU8QLW0DOIXQFWLRQRI6XFWLRQ3LSH3UHVVXUH
6HQVRU
5HPRWH&RQWURO
'LVSOD\
JC
$SSOLFDEOH
0RGHOV
5;<4a0
0HWKRGRI
0DOIXQFWLRQ
'HWHFWLRQ
0DOIXQFWLRQLVGHWHFWHGIURPSUHVVXUHGHWHFWHGE\ORZSUHVVXUHVHQVRU
0DOIXQFWLRQ
'HFLVLRQ
&RQGLWLRQV
:KHQWKHVXFWLRQSLSHSUHVVXUHVHQVRULVVKRUWFLUFXLWRURSHQFLUFXLW
6XSSRVHG
&DXVHV
'HIHFWRIORZSUHVVXUHVHQVRUV\VWHP
&RQQHFWLRQRIKLJKSUHVVXUHVHQVRUZLWKZURQJFRQQHFWLRQ
'HIHFWRIRXWGRRUXQLW3&ERDUG
7URXEOHVKRRWLQJ
*9ROWDJHPHDVXUHPHQWSRLQW
*5HIHUWRSUHVVXUHVHQVRUSUHVVXUHYROWDJHFKDUDFWHULVWLFVWDEOHRQ3
(V2808)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
The
relationship
between the ∗1 VH
and low pressure is
normal (see ∗2) when voltage is
measured between X45A pins
(2) and (3) of outdoor unit
PC board (A1P)
(see ∗1).
Replace the low pressure sensor.
Connect low pressure sensor
property and restart system.
NO
NO
Replace outdoor unit PC board
A1P.
YES
YES
The low pressure
sensor is connected to
X45A (blue) of outdoor
unit PC board (A1P).
4
3
2
1
(V2809)
Microcomputer
A/D input
Red
Black
White
GND
*2 Measure DC voltage here.
Low pressure sensor
Outside unit PC board A2P
+5V
X45A
Comments to this Manuals