(1) Lub choj ntawm qhov dej khov yuav tsum yog hais txog 3 hli, qhov sib txawv ntawm qhov kev sojntsuam thiab cov evaporator yuav tsum yog 1.5 hli thicker dua li cov thickness ntawm cov dej khov, thiab clockwise tig ntawm qhov kev sib tw ntawm txoj kev los ua kom cov dej khov (lub cav sib lawv liag yog 1/3 ntawm cov dej khov brown thickness Hloov 1.5mm).
(2) Kos cov hlua ntawm lub ntsuas phom thiab cov hlua txuas, thiab xyuas kom qhov kev hloov dawb yuav rov qab mus rau txoj hauj lwm kom yog tom qab cov dej khov ua tiav.
Lub tuam txhab tshwj xeeb tshaj tawm kev muag khoom ntau hom cav nab kuab thiab txais tos cov neeg muas zaub uas xav tau kev sab laj thiab yuav khoom.
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