Samsung AM072/096/120/144FXVAFH, Service Manual

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3-64 Samsung Electronics
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AM072/096/120/192HXWA
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STEP Occasion that compressor is 1 inside outdoor unit Occasion that compressor is 2 inside outdoor unit
1 - Establish compressor to exchange by cutting.
2 -
Refrigerant release driving of applied outdoor unit
ఐ
Refrigerant release driving enforces 1st
necessarily.
Release driving that enforce contiguously can be
responsible for compressor breakdown.
3 Lock all SVC valve of liquid pipe and gas pipe.
4 Enter in vacuum mode and establish as all EEV and Valve open.
5
Reclaim refrigerant of outdoor unit using Recovery Unit.
ఐ
When there is no Recovery Unit, refer to below contents.
1. If refrigerant release driving is enforced, refrigerant remaining amount of outdoor unit inside
is about 1.5kg ordinarily. Temperature can remain more refrigerant because refrigerant fills to
Accumulator in the winter day.
2. Refer to factory charging refrigerant had registered to Label of outdoor unit.
3. Can get help that decide an addition refrigerant quantity if use refrigerant quantity decision
function that use S-Checker.
6 Turn off the power linked by outdoor unit.
7
Separate compressor that broke down from outdoor unit.
ఐ
Confirm through manifold gauge whether refrigerant of outdoor unit was reclaimed all
necessarily before use welding machine for replace of compressor.
8 Measure quantity of broke down oil of compressor.
9 Confirm state and color of compressor oil that broke down.
10 -
When is judged that oil was polluted, compressor
beside (ASTM : more than 3) measures quantity of
replace and oil.
11 Decide quantity of oil to pour in addition according to sheep of changing oil of compressors.
12
Change by new compressor.
Add oil according to sheep of oil that pour decided addition before.
13 Establish again by vacuum mode after connect power.
14 Execute leakage examination using nitrogen
ࣖ
vacuum work
15 Add a refrigerant quantity deciding from step 5.
16 Execute Auto Trial Operation after open SVC Valve.