NF DP420LS Instruction Manual page 27

2. Preparation before Use
 About arrangement
 Do not place the product on its side, back or top.
 Do not stack the product on top of the other, or place it in front or back of the other
(arrangement which makes the cabinet placed behind inhale the exhaust heat of the other).
 When you use multiple cabinets to form a polyphase system, there is no limitation regarding
the order of the phases to be arranged. Arrange them in your convenient order within the range
of the length of the System Cable.
 Other installation location conditions
 Use the product indoors, at altitude up to 2000 m.
 Use the product where the temperature is 0 to +50 C, and the humidity is 5 to 85 %RH (the
absolute humidity should be 1 to 25 g/m
specifications, the temperature range limit is more strict.
 Do not install the product in the following places:
 Place exposed to inflammable gas
This may pose a risk of explosion. Never install and use the product in such a place.
 Outdoors, place exposed to direct sunlight, or place near fire or heat source
This may reduce the performance, or cause failure.
 Place exposed to briny air
This may cause salt damage.
 Place exposed to corrosive gas or water, or humid place
This may cause corrode or failure.
 Place near electromagnetic field source, high-voltage equipment, or power line
This may cause malfunction.
 Place of frequent vibration
This may cause malfunction or failure.
 Dusty place
This may cause failure. Especially do not install the product in a place with conductive
dust.
 Electromagnetic emissions from this product may interfere with reception of radio and
television broadcasts. Unless the user takes special measures to reduce electromagnetic
emissions, using this product in a residential area must be avoided.
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, without condensation). However, on some
PROGRAMMABLE AC POWER SOURCE