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Others
SiEN12-710A
182
Others
1.3 Application of Silicon Grease to a Power Transistor and
a Diode Bridge
Applicable
Models
All outdoor units using inverter type compressor for room air conditioner.
When the printed circuit board of an outdoor unit is replaced, it is required that silicon grease
(*1) is certainly applied to the heat radiation part (the contact point to the heat radiation fin) of
the power transistor and diode bridge.
*1: Parts number of the silicon grease – 1172698 (Drawing number 3FB03758-1)
Details
The silicon grease is an essential article for encouraging the heat radiation of the power
transistor and the diode bridge. Applying the paste should be implemented in accordance with
the following instruction.
Remark: There is the possibility of failure with smoke in case of bad heat radiation.
"
To completely wipe off the old silicon grease on a heat radiation fin.
"
To evenly apply the silicon grease to the whole.
"
Do not have any foreign object such as solder or paper waste between the power transistor,
the diode bridge and the heat radiation fin.
"
To firmly tighten the screws of the power transistor and the diode bridge, and to surely
contact to the heat radiation fin without any gap.
<Example>
Take out a PCB
Diode bridge
(Diode bridge, Rectifier stack, etc.)
Power transistor
(TRM, TPM, IGBT, IPM, SPM, etc.)
Not applied
Paper wastage
OK: Evenly applied
silicon grease.
NG: Not evenly
applied
NG: Foreign object.
Summary of Contents for 2MKS40FV1B
Page 11: ...Introduction SiEN12 710A x ...
Page 12: ...SiEN12 710A List of Functions 1 Part 1 List of Functions 1 Cooling Only 2 2 Heat Pump 4 ...
Page 17: ...Heat Pump SiEN12 710A 6 List of Functions ...
Page 25: ...Heat Pump SiEN12 710A 14 Specifications ...
Page 111: ...Instruction SiEN12 710A 100 Operation Manual ...
Page 199: ...Wiring Diagrams SiEN12 710A 188 Appendix ...
Page 203: ...SiEN12 710A iv Index ...