|
Size: 1450
Comment:
|
Size: 3064
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 7: | Line 7: |
| . Even at "5 bars", refrigerator compartment won't cool more than 40 degrees below room temperature (can be 82F) | . Even at "5 bars", refrigerator compartment won't cool more than 40 degrees below room temperature (can be 85F in August) |
| Line 9: | Line 9: |
| . Freezer compartment works fine at two bars | |
| Line 12: | Line 11: |
| Line 15: | Line 15: |
| . Refrigerator very quiet - I would expect some compressor sound | . Refrigerator very quiet - expecting more compressor noise |
| Line 17: | Line 17: |
| . Added a 300 cubic/foot per minute floor vent blowing air at back left side . floor vent fan reduces maximum temperature excursion by 4F, but fan is noisy and consumes 40 more watts |
. Freezer compartment works fine at two bars, opened twice per day, often to access "power cool" . Added a '''300 cubic/foot per minute floor vent''' blowing air at lower back left side . floor vent reduces maximum temperature excursion by 4F, but vent fan is noisy and consumes 40 more watts |
| Line 29: | Line 30: |
| === Photos - Click for larger view === || [[ attachment: | {{ attachment: || |
=== Photos taken on moderate July day - Click for larger view === || [[ attachment:IMG_0098.JPG | {{ attachment:IMG_0098.JPG | | height=50 }} ]] || Thermocouple temperatures, top is left compartment wall, bottom is interior upper glass shelf || || [[ attachment:IMG_0100.JPG | {{ attachment:IMG_0100.JPG | | height=50 }} ]] || Inside of compartment. Thermocouple on "stovetop wall", 300 cfm vent at bottom, power routed through Kill-A-Watt meter, foil radiant barrier and 3 inch styrofoam ball spacer in back || || [[ attachment:IMG_0102.JPG | {{ attachment:IMG_0102.JPG | | height=50 }} ]] || Kill-A-Watt meter feeding power to refrigerator. Can exceed 100 watts during "Power Cool", usually runs below 3 watts || || [[ attachment:IMG_0105.JPG | {{ attachment:IMG_0105.JPG | | height=50 }} ]] || Basement: AC Infinity fan and sound baffle to floor vent above. Thermocouple attached to sheet metal duct || || [[ attachment:IMG_0104.JPG | {{ attachment:IMG_0104.JPG | | height=50 }} ]] || Basement: Duct connection to refrigerator floor vent. ''<<BR>><<BR>> FYI Samsung engineers: Not relevant to the refrigerator, but the blue device on the lower left is the top of a medical grade isolation transformer for my electronics workbench, isolating hot and neutral for safety'' || || [[ attachment:IMG_0106.JPG | {{ attachment:IMG_0106.JPG | | height=50 }} ]] || Vents at back bottom of refrigerator. No air blows in or out || || [[ attachment:IMG_0107.JPG | {{ attachment:IMG_0107.JPG | | height=50 }} ]] || Close-up of left back vent. What's that strange bit of light brown foam just inside the vent? || |
Samsung Refrigerator
- Samsung RT18M 6213 WW/AA
- Compressor MSV4A1AL1R/TT3
- 0F364DBKB00391P
Problem
- Even at "5 bars", refrigerator compartment won't cool more than 40 degrees below room temperature (can be 85F in August)
- "Power Cool" temporarily lowers temperature more
More information
- In wooden kitchen compartment 33 inches wide, 68 inches high, 27 inches deep, with 3 inch space in back
- Hot garage behind back wall - aluminum foil on wall minimizes radiant heat.
- extra open space inside the back refrigerator compartment surrounding round black vent
- Refrigerator very quiet - expecting more compressor noise
- Draws 3 to 100 watts, monitored with "Kill-a-Watt" digital meter
- Freezer compartment works fine at two bars, opened twice per day, often to access "power cool"
Added a 300 cubic/foot per minute floor vent blowing air at lower back left side
- floor vent reduces maximum temperature excursion by 4F, but vent fan is noisy and consumes 40 more watts
Usage
- Mostly use refrigerator for fresh food, dairy and lots of vegetables
- Don't use ice or icemaker, not many frozen foods
Purchase and Warranty
Purchased 2019 July 9 for $648 from Home Depot 4401 SW 110th Ave Beaverton OR 97005
- delivered 2019 July 22
- added 3 year protection plan $90 ... but Home Depot doesn't answer phone within 40 minutes
Photos taken on moderate July day - Click for larger view
|
Thermocouple temperatures, top is left compartment wall, bottom is interior upper glass shelf |
|
Inside of compartment. Thermocouple on "stovetop wall", 300 cfm vent at bottom, power routed through Kill-A-Watt meter, foil radiant barrier and 3 inch styrofoam ball spacer in back |
|
Kill-A-Watt meter feeding power to refrigerator. Can exceed 100 watts during "Power Cool", usually runs below 3 watts |
|
Basement: AC Infinity fan and sound baffle to floor vent above. Thermocouple attached to sheet metal duct |
|
Basement: Duct connection to refrigerator floor vent. |
|
Vents at back bottom of refrigerator. No air blows in or out |
|
Close-up of left back vent. What's that strange bit of light brown foam just inside the vent? |
