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Safety precautions
Changes in DVM S (inverter) compare to conventional models that has to noted when installing
For optimal distribution of the refrigerant, you must use Y-joint as branch joint for connecting outdoor units. (To
not use T-joint)
You cannot operate normally if you do not complete the trial operation through outdoor unit key mode. You must
use KEY MODE to run trial operation.
DVM S air conditioner uses R-410A refrigerant.
Check the compatibility of other products such as indoor unit, EEV kits etc. which will be connected to DVM S.
Make sure to note that outdoor unit combination is dierent from DVM PLUS III and IV.
The length of maximum piping, level dierence, the quantity of connectable indoor units, the installation at the
outdoor joints and the outdoor unit combinations are dierent from the conventional models.
If the pipe length is over 2 m between outdoor units, make traps to prevent oil stagnation. Oil stagnation may
occur when outdoor unit at the end of module stops while other outdoor units are still in operation.
DVM S HE_IM_DB68-05461A-08_EN.indd 6 2017-03-24 오후 1:38:14
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