Samsung AM JXVHGH Series Installation Manual page 6

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