Samsung mini DVM Series, Service Manual

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1-1 Samsung Electronics
1. Precautions
1-1 Safety Precautions
The following safety precautions must be taken when installing the unit.
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R410A refrigerant is used for mini DVM / DVM Plus
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air conditioner.
– When using R410A,moisture or foreign substances may affect to the capacity and reliability of the product.Safety
precautions must be taken when installing the refrigerant pipe.
– The design pressure of the unit is 4.1MPa.Select appropriate material and thickness according to the regulations.
– R410A is a quasi-azeotrope of two refrigerants.
Make sure to charge liquid one when adding refrigerant.
If you charge gaseous refrigerant,it may affect the capacity and reliability of the product as a result of change
formation of the refrigerant.
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Connect only the indoor units fit on R410A refrigerant. Check whether the indoor units can be connected with the
product’s catalogue.
(When incorrect indoor units are connected,they cannot operate normally.)