Storage Environment; Temporary Storage; Long-Term Storage - Fuji Electric FRENIC-HVAC User Manual

2.7.2

Storage environment

2.7.2.1

Temporary storage

Store the inverter in an environment that satisfies the requirements listed below.
Item
-25 to +70°C (-13 to +158°F)
Storage
temperature
* 1
Relative 5 to 95%
humidity
Atmosphere The inverter must not be exposed to dusts, direct sunlight, corrosive or flammable
gases, oil mist, vapor, water drops or vibration. The atmosphere must contain only a low
level of salt. (0.01 mg/cm
Atmospheric 86 to 106 kPa (during storage)
pressure
70 to 106 kPa (during transportation)
*1 Assuming comparatively short time storage, e.g., during transportation or the like.
*2 Even if the humidity is within the specified requirements, avoid such places where the inverter
will be subjected to sudden changes in temperature that will cause condensation to form.
Precautions for temporary storage
(1) Do not leave the inverter directly on the floor.
(2) If the environment does not satisfy the specified requirements listed in Table 2.6 wrap the
inverter in an airtight vinyl sheet or the like for storage.
(3) If the inverter is to be stored in a high-humidity environment, put a drying agent (such as silica
gel) in the airtight package described in item (2).
2.7.2.2

Long-term storage

The long-term storage method of the inverter varies largely according to the environment of the
storage site. General storage methods are described below.
(1) The storage site must satisfy the requirements specified for temporary storage.
However, for storage exceeding three months, the ambient temperature range should be within the
range from -10 to 30°C (14 to 86°F). This is to prevent electrolytic capacitors in the inverter from
deterioration.
(2) The package must be airtight to protect the inverter from moisture. Add a drying agent inside the
package to maintain the relative humidity inside the package within 70%.
(3) If the inverter has been installed to the equipment or panel at construction sites where it may be
subjected to humidity, dust or dirt, then temporarily remove the inverter and store it in the
environment specified in Table 2.6.
Precautions for storage over 1 year
If the inverter has not been powered on for a long time, the property of the electrolytic capacitors may
deteriorate. Power the inverters on once a year and keep the inverters powering on for 30 to 60 minutes.
Do not connect the inverters to the load circuit (secondary side) or run the inverter.
2.7 Operating Environment and Storage Environment
Table 2.6 Storage and Transport Environments
Specifications
Places not subjected to abrupt temperature changes or
condensation or freezing
* 2
2
or less per year)
2-45