Replace The Condensor Coil 36K - Friedrich VRP12K Service And Parts Manual

R-410A SEALED SYSTEM REPAIR

Replace The Condensor Coil 36k

1. Remove unit from the closet.
2. Ensure no charge is left in the system, evacuating according to EPA standards.
3. Remove the front and side panels.
4. Sweat out tubing connections to condenser coil as required
5. Remove mount screws attaching condenser coil to shroud on the left and right side of the coil.
6. Detach thermistor from coil.
7. Slide coil out of the rear of the unit.
8. Instal new coil in reverse sequence.
9. Pressurize with a combination of R‑410A and nitrogen. Leak test all connections. If a leak cannot be found, pressurize with a
combination of Nitrogen and a trace charge of R‑410A and sweep with with an electronic or Halide leak detector. Recover refrigerant
and repair any leaks found.
10. If leak detector is unavailable, remove all refrigerant from system and pressurize with nitrogen to 550 psi. Check that system holds
pressure.
Repeat Step 9 to insure no more leaks are present.
11. Evacuate the system with a good vacuum pump capable of a final vacuum of 200 microns or less. The system should be evacuated
through both liquid line and suction line gauge ports. While the unit is being evacuated, seal all openings on the defective compressor.
Compressor manufacturers will void warranties on units received not properly sealed. Do not distort the manufacturers tube
connections.
12. Recharge the system with the correct amount of refrigerant. The proper refrigerant charge will be found on the unit rating plate. The
use of an accurate measuring device, such as a charging cylinder, electronic scales or similar device is necessary.
Figure 505 (36k Condensor replacement)
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