- 85 -
Indoor LEV Pulse Signal and Valve Operation
Output Phase
Output State
1
2
3
4
1
ON
OFF OFF
ON
2
ON
ON
OFF OFF
3
OFF ON
ON
OFF
4
OFF OFF
ON
ON
D
C
Valve opening
E
A
2000 Pulses
LEV Pulses
B
80-100 Pulses
Indoor Control Board
DC12V
LEV
Wire joining connector
2
2
Brown
6
5
Red
5
6
2
1
5
4
1
Blue
4
4
3
3
3
Orange
3
3
2
4
Yellow
2
2
1
6
White
1
1
Indoor Unit Connector
CN60
M
Indoor LEV, BC LEV1 and 2
The valve opening angle changes in proportion to the number of pulses.
(Connections between the indoor unit’s MAIN board and indoor LEV)
Pulse Signal Output and Valve Operation
LEV Valve Closing and Valve Opening Operations
Output pulses change in the following orders when the
Valve is Closed
1
2
3
4
1
Valve is Open
4
3
2
1
4
❇
1. When the LEV opening angle does not change, all the
output phases are off.
2. When the output is out of phase or remains ON
continuously, the motor cannot run smoothly, but move
jerkily and vibrates.
❇
When the power is switched ON, a 2200 pulse valve
opening signal is output to make sure the valve’s
signal is output for approximatly 17 seconds .)
❇
When the valve operates smoothly, there is no sound
from the LEV and no vibration occurs, but when the
valve is lock
.
❇
Whether a sound is being emitted or not can be
determined by holding a screwdriver, etc. against it,
then placing your ear against the handle.
❇
If there is liquid refrigerant inside the LEV, the sound
may become lower.
(5)
position, so that it is definitely at point
A
. (Pulse
ed or
E
A
, it emits a noise
Содержание CITY MULTI CMB-P1016V-F
Страница 17: ...FANCON board CNFAN CNPOW CNFC2 CN15V1 CNDR1 CNIPM1 G A board Terminal for signal grounding CNDC1 CNDC2 16 ...
Страница 18: ... 17 RELAY 10 board RELAY 4 board ...
Страница 19: ... 18 BC controller SW4 SW5 SW2 SW1 CN12 Power supply 1 EARTH 3 N 5 L CN02 M NET transmission CN03 CNTR ...
Страница 72: ... 71 ...
