194 Maintenance instructions
Manual Energy Storage Inverter ESI-S
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10 Maintenance instructions
10.1 What this chapter contains
This chapter contains the maintenance instructions for the inverter. Although your ESI-
S has been designed for minimum maintenance, the following procedure should be
carefully followed to ensure the longest possible lifetime of your investment.
WARNING: All maintenance work described in this chapter should only be undertaken
by a qualified electrician. The safety instructions presented in
Chapter 2
of this manual
must be strictly adhered to.
WARNING: High AC and DC voltages may be present in the inverter panel. Do not touch
any inverter parts unless you have ascertained that they do not carry dangerous
voltage levels.
WARNING: Under no circumstances close the DC and AC contactor manually. Failure to
adhere to this guideline may result in physical injury and/or in inverter damage.
10.2 Maintenance intervals
lists the routine maintenance intervals. Depending on the operating and
ambient conditions, the intervals of
may have to be reduced. Announced
intervals assume that the equipment is operating under ABB approved operating
conditions (Cf.
Table 56: inverter maintenance intervals
Maintenance
Intervals
Instructions
Standard maintenance
procedure
Depending on the
dustiness/dirtiness of the
environment, every 12 to 24 months.
Section 10.3
Cooling fan change
Every 4 years for the “fan in”(35000
hours)
Every 3 years for the “fan out”(27000
hours)
Section 10.4
DC capacitor change
Every 8 years for 3-wire connection.
Every 5 years for 4-wire connection.
Section 10.5
For convenience
Section 10.7
presents a maintenance template that can be used by the
maintenance engineer.
