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Trial Operation
Service Support Function
Pulse Motor Valve (PMV) manual "FULL OPEN" function in the indoor unit
With switch operation on interface P .C. board of the inverter outdoor unit, this function allows
manual opening of the Pulse Motor Valve (PMV) in all the indoor units for 2 minutes.
Usually, turning on power of the indoor unit once fully closes the PMV of the indoor unit.
This function is used when you want to open the PMV fully for operation after power source has
been turned off for a second time.
Procedure
Set SW01 to "2", SW02 to"3", and SW03 to "1" on the interface P .C. board of the inverter
outdoor unit, and push SW04 for 2 seconds or more.
(7 segment display [B] changes to "FF" for 2 minutes.)
Clear
After set up, PMV returns to normal open pulse automatically when 2 minutes has passed.
(Opened fully for 2 minutes only against FULL OPEN signal from the outdoor unit or software
of the indoor unit.)
Pulse Motor Valve (PMV) forced FULL OPEN / FULL CLOSE function in
outdoor unit
This function allows forced opening/closing of the electronic control valve (PMV), used in the
outdoor unit, for 2 minutes.
Full Open
Short circuit CN30 on interface P .C. board of the inverter outdoor unit.
Full Close
Short circuit CN31 on interface P .C. board of the inverter outdoor unit.
Clear
Both FULL OPEN/ FULL CLOSE return to normal open pulse when 2 minutes has passed.
Be sure to remove the short-circuit after check.
NOTE:
Switch off bit 1 side of DIP SW08.
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