89
Expansion valve (SLEV
ww
: Outdoor unit)
11
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-125VM1
PUMY-125YM
2 PUMY-71VM
2
PUMY-125VM2
PUMY-125YM1 PUMY-125YMA
PUMY-125VMA PUMY-125VMA
1
0.5
123
1.5
2.5
3.5
Vout (V)
PRESSURE
(MPa)
123
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
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