Lubricating oil composition for refrigerators and compressors with the composition

A lubricating oil composition/refrigerant combination, the refrigerant comprising

• at least one fluorine-containing organic compound molecular formula (A):
• CpOqFrRs (A)
• wherein R represents Cl, Br, I, or H;
• p, q, r, and s are integers of 1 to 6, 0 to 2, 1 to 14, and 0 to 13, respectively, with the proviso that when q is 0, p is 2 to 6, and at least one carbon-carbon unsaturated bond is present in the molecule, or
• a combination of the fluorine-containing organic compound with a saturated fluorinated hydrocarbon compound, and
• said lubricating oil composition/refrigerant combination comprising a base oil comprising as a main component a polyol ester compound obtained from a polyhydric alcohol selected from the group consisting of pentaerythritol, dipentaerythritol, trimethylolpropane and neopentyl glycol, and a C4 to C20 aliphatic monocarboxylic acid, wherein said polyol ester compound has an acid value of 0.02 mgKOH/g or less and a hydroxyl value of 5 mgKOH/g or less.