Control Box Of The Outdoor Unit - Mitsubishi Electric PURY-P72 Service Handbook
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Also See for PURY-P72:
- Service handbook (412 pages) ,
- Service handbook (403 pages) ,
- Service handbook (404 pages)
Table of Contents
[ III Outdoor Unit Components ]
[2] Control Box of the Outdoor Unit
1. PURY-P72THMU-A
DC reactor (DCL)
Electromagnetic relay(72C)
Rush current
protection resistor
(R1) Note.2
Noise filter
Note.2
Terminal block for
power supply
(TB1)
1) Exercise caution not to damage the bottom and the front panel of the control box. Damage to these parts affect the water-
proof and dust proof properties of the control box and may result in damage to its internal components.
2) Faston terminals have a locking function. Make sure the cable heads are securely locked in place. Press the tab on the ter-
minals to remove them.
HWE0803A
Control box houses high-voltage parts.
When opening or closing the front panel of the control box, do not let it come into contact with any of
the internal components.
Before inspecting the inside of the control box, turn off the power, keep the unit off for at least 10 minutes,
and Check that the voltage across terminals FT-P and FT-N (YHMU) on the INV board or the voltage at
both ends of the main capacitor (C1) (THMU) is 20VDC or below.
(It takes about 10 minutes to discharge electricity after the power supply is turned off.)
Ground terminal
Note.1
Fan board
Control board
INV board
Terminal block for transmission line
(TB3, TB7)
Smoothing capacitor(C1)
- 60 -
M-NET board
GB
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