WSTECH APS Series - 12-Month De-energized Maintenance Tasks

Original Operating Instructions
APS Series – Outdoor Hybrid Inverter
Maintenance
APS-Series 120 Operating Instructions v320 EN
Page 142 of 213
Procedure:
1. Set operation mode to OFF via the user interface (Function and Interface
Description).
2. Open doors in Section +C1 (Figure 13).
3. Switch miniature circuit breaker (-F1) in position 0 to disconnect the supply
voltage.
4. Disconnect the AC/DC voltage and supply voltage externally.
5. Ensure that the product is de-energized.
8.1 Maintenance every 12 Month
NOTICE: During each maintenance interval, the following points must be checked.
Table 26: Maintenance in de-energized condition (every 12 month)
MAINTENANCE TASKS
See
Visual Inspection of the Housing
Section 8.2.1
Check of the Covers and Doors
Section 8.2.2
Visual Inspection of the Interior Area
Section 8.2.2
Cleaning the Air Duct
Section 8.2.4
Torque Check of the Electrical Connections
Section 8.2.5
Condition Check of the Cables and Lines
Section 8.2.6
Condition Check of the Fuse
Section 8.2.7
Check of the Cooling System
Section 8.2.8
8.2 Maintenance in De-energized Condition
8.2.1 Visual Inspection of the Housing
Maintenance Tasks:
1. Check the housing for visual defects e.g. corrosion, discolouration or damage.
 In case of visual defects, repair these immediately.
2. Check if any labels e.g. safety signs and type plate (Figure 13, Figure 14) are
damaged or missing.
 In case of damage or missing labels, please contact customer service
(Section 11).
8.2.2 Check of the Covers and Doors
Maintenance Tasks:
1. Check all covers and doors according to Section 4.3.
 In case of deviations, please contact customer service (Section 11).