Hitecsa 1402.2, Руководство пользователя

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07.16 207477 Rev.108
ROOF TOP UNITS
– AXIAL FAN
RMXCA/RMXCBA
- To align fan and motor pulleys:
1. Loosen fan pulley set screw.
2 Slide fan pulley along the shaft and align with motor using a ruler to be parallel with the belt.
3 Tighten the fan pulley set screw.
COMPRESSOR LUBRICANT
Compressors designed for 410A use POE oils. Each compressor manufacturer is using different oil for its products.
Compressors are designed for 410A use synthetic Each compressor manufacturer is using different oil for
his products. The compressor or system cannot remain open to atmosphere more than 15 minutes. Compared to
the mineral oil used with R22 compressors polyoilester lubricants absorb more than 100 times more the moisture.
Mineral oils or alkylbenzene-type synthetic oils are used for R22. Because R410A is not very soluble with conventional
oils, the latter tend to accumulate in the refrigerator circuit .That is why ester-type synthetic lubricants (POE,polyester)
which are highly soluble with R410A are used. Oils of this type are very hygroscopic, so they need to be handled more
carefully than conventional oils. Also, these synthetic oils deteriorate when they are mixed with mineral or alkylbenzene-
type oils and obstruct the capillaries or cause a breakdown in the compressor. Do not mix them under any circumstance.