Pulse Motor Valve (Pmv) Forced Open/Close Function In Indoor Unit; Pulse Motor Valve (Pmv) Forced Open Fully/Close Fully Function In Outdoor Unit - Toshiba MMY-MAP0804HT8-E Service Manual

7-7-5. Pulse Motor Valve (PMV) Forced Open/Close Function in
This function is provided to open or close forcedly PMV for 2 minutes in all the indoor units by the switch operation
on the interface P.C. board of the header unit.
This function is also used to open PMV fully when turning off the power and executing an operation.
<Operation>
[Open fully]
Set the switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/3/1], and press SW04 for
2 seconds or more.
(Display appears on 7-segment display for 2 minutes as follows.) [P ] [ FF]
[Close fully]
Set the switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/3/1], and press SW05 for
2 seconds or more.
(Display appears on 7-segment display for one minute as follows.) [P ] [ 00]
[Clear]
After 2 minutes (1 minutes for "Close fully") after setting up, the opening automatically returns to the normal
opening.
7-7-6. Pulse Motor Valve (PMV) Forced Open Fully/Close fully
This function is provided to forcedly open or close fully P.M.V. (PMV1/PMV2, PMV4) used in the outdoor unit for 2
minutes.
[PMV1/PMV2 Open fully]
On the interface board of the outdoor unit, set the dip switch [SW12·bit1] to [OFF], [SW12·bit2] to [OFF], and short-
circuit CN30.
[PMV1/PMV2 Close fully]
On the interface board of the outdoor unit, set the dip switch [SW12·bit1] to [OFF], [SW12·bit2] to [OFF], and short-
circuit CN31.
[PMV4 Open fully]
On the interface board of the outdoor unit, set the dip switch [SW12·bit1] to [OFF], [SW12·bit2] to [ON], and short-
circuit CN30.
[PMV4 Close fully]
On the interface board of the outdoor unit, set the dip switch [SW12·bit1] to [OFF], [SW12·bit2] to [ON], and short-
circuit CN31.
[Clear]
For both open fully and close fully, after 2 minutes, the opening returns to the normal opening.
Be sure to remove the cord used for short-circuit after confirmation, and set the dip switch [SW12·bit1] to [OFF]
and [SW12·bit2] to [OFF].
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Indoor Unit
Function in Outdoor Unit
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