Hitachi NE-S1 series Basic Manual page 6

②Ensure Adequate Ventilation
To summarize the caution messages – you will need to find a solid, non-flammable, vertical surface that is in a relatively clean and dry environment.
In order to ensure enough room for air circulation around the inverter to aid in cooling, it is recommended to maintain the specified clearance and
the inverter specified in the below diagram.
5 cm (1.97")
minimum
③Caution for ambient temperature
Verify ambient temperature at installation site is within the standard specification range (-10~50 C). Measure ambient temperature 5cm from
the bottom center of inverter main body and confirm that it is within the allowable temperature range.
Using the inverter at higher temperature than allowable temperature may result in shortening of lifetime of inverter (especially of electrolytic
capacitors). A derating curve is shown on QRG (Please refer to the website.)
④Do not install the inverter in such places as high temperature, high humidity, or prone to condensation.
Use the inverter within the allowable humidity range (20~90%RH) described in standard specifications.
Especially, please use it in place where no condensation occurs. If condensation occurs and beading is generated inside the inverter, electronic
parts are short-circuited each other to cause a failure. Also, please avoid installing it in direct sunlight.
⑤Caution for installation environment
Please avoid installing the inverter in such places where dust, corrosive gas, explosive gas, flammable gas, mist of grinding fluid, or salt pollution,
etc. exists.
Invasion of dust, dirt etc. into the inverter may cause a failure. So, when you use it in dusty place by necessity, please devise a countermeasure
such as putting it into a closed type chassis.
-Reduction of the carrier frequency or using bigger kW model is required if depends on the load or ambient.
- Do not open the front cover during operation.
⑥Cautions for installation direction¥
Surface of the installation must be no vibration, and should be capable of holding the weight of the product. And the product must be fixed to the
surface with proper screws in a vertical direction. Be sure to screw using all the screw holes for the installation.
(002L/SB,004L/SB,007LB : 2 positions, 007SB,015L/SB,022L/SB : 4 positions)
There is a risk of performance failure, and/or breakdown when the product is not installed vertical direction.
10 cm (3.94")
minimum
5 cm (1.97")
minimum
10 cm (3.94")
minimum
CAUTION
WARNING
Airflow
6
Surface
Adequate space for the airflow
must be kept. Pay attention for
wiring duct installation.