– 215 –
11-3. Work procedure after Repair
When vacuuming in the repaired outdoor unit, follow the procedure described below.
<Work procedure>
(1) Fully open PMV1 and 2 and PMV4 in accordance with the table below.
Note: PMV full-opening operation via short-circuiting of the CN30 pins is automatically undone after 2
minutes, causing the valves to fully close. To maintain fully open state, turn off the power switch of the
outdoor unit within 2 minutes of the short-circuiting of the CN30 pins.
(2) Be sure to perform vacuuming in from the three check joints shown in the diagram below (liquid pipe,
discharge pipe and suction pipe).
SW12
CN30 PMV operation
Bit 2 Bit 3 Bit 4Bit 1
OFF OFF OFF Short-circuit PMV1 and 2 fully open for 2 minutes.OFF
ON OFF OFF Short-circuit PMV4 fully opens for 2 minutes.OFF
Check joint
(Low-pressure)
Check joint
(Liquid pipe)
Check joint
(High-pressure)
To Next Page
Loading...
Need help?
General
