(A) Brown
(B) Red
(C) Black
(D) Green
(E) Yellow
(F) White
(G) Control board
(H) Connection (CN60, CN7V)
(I) Drive circuit
(J) Linear expansion valve
Pulse signal output and valve operation
Phase number
Output pulse
1
2
3
4
Φ1
ON
OFF
OFF
ON
Φ2
ON
ON
OFF
OFF
Φ3
OFF
ON
ON
OFF
Φ4
OFF
OFF
ON
ON
The output pulse changes in the following order:
When the valve closes 1 -> 2 -> 3 -> 4 -> 1
When the valve opens 4 -> 3 -> 2 -> 1 -> 4
• When the valve position remains the same, all output signals will be OFF.
• If any output signal is missing or if the signal remains ON, the motor vibrates and makes clicking noise.
2) LEV operation
(a) Close
(b) Open
(c) Fully open valve (1400 pulses)
(d) No. of pulses
(e) Extra tightening (80 - 100 pulse)
(f) Valve opening degree
• When the power is turned on, a pulse signal of 2200 pulses is output (valve closure signal), to bring the
valve to position A.
PAC-AH001-1
Specifications are subject to change without notice.
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