89
Expansion valve (SLEV
ww
: Outdoor unit)
1
1
Notes on expansion valve action
• SLEV
w
to stepping motor ON/OFF after outdoor controller board has received pulse signal.
• The valve position can be changed according to the pulse signal number ratio.
<connection between the SLEV
w
and the outdoor controller board>
Note: Because the numbers of the relay connector and the connector on the controller board side are different, wiring work
must rely on the colors of the wires.
M
SLEV
w
Blue
{
4
{
3
{
2
{
1
{
4
{
3
{
2
{
1
2
5
1
3
4
6
6
5
4
3
2
1
BRN
RED
BLU
ORN
YLW
WHT
Brown
Yellow
Red
White
Orange
1
5
2
3
6
4
Relay connector
(Only LEV(A))
Controller board
DC12V
Drive circuit
Connector (CN60)
(SLEV
w
)
Thermistor R120 = 7.465k
'
± 2%
B constant = 4057K ± 2%
R
t
=7.465exp{4057( 273+t
–
393)}
1
1
20
:
250k
'
30
:
160k
'
40
:
104k
'
50
:
70k
'
60
:
48k
'
70
:
34k
'
80
:
24k
'
90
:
17.5k
'
100
:
13.0k
'
110
:
9.8k
'
High temperature thermistor
Discharge temperature thermistor (TH1)
500
<Hight temperature thermistor>
400
300
200
100
0
25
50
75
100
120
Temperature (
:
)
Resistance (K
"
)
To be continued on the next page.
<HIGH PRESSURE SENSOR>
1
PUMY-71VM PUMY-71VM
1
PUMY-125VM PUMY-125VM
1
PUMY-125YM
2
PUMY-71VM
2
PUMY-125VM
2
PUMY-125YM
1
PUMY-125YMA
PUMY-125VMA PUMY-125VMA
1
0.5
1
2
3
1.5
2.5
3.5
Vout (V)
PRESSURE
(MPa)
1
2
3
1.0
2.0
3.0
Vout (V)
PRESSURE
(MPa)
3
2
1
WHT
BLU
BLK
SENSOR
5V DC
GND
63HS
Vout
MICRO
COMPUTER
MULTI
CONTROLLER BOARD
3
-
1
: 5V (DC)
2
-
1
: Vout (DC)
Only PUMY-125VMA model
w
LEV(A)
OC183E--3.qxp 10.5.6 3:05 PM Page 89
