SolarEdge CSS-OD Routine Maintenance Manual
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SolarEdge CSS-OD: Routine Maintenance Guide
This Maintenance Guide pertains to the CSS-OD solution in both grid-tied topology (without
Backup) and in Backup-enabled topology (with backup). Below, you can find the relevant devices
for your site's topology.
Revision history
Version 1.0, November 2024: Initial release date.
Contents
Revision history ................................................................................................................................................................ 1
Contents ............................................................................................................................................................................. 1
Handling and safety instructions .............................................................................................................................. 2
Safety symbols information .................................................................................................................................. 2
Important safety instructions ................................................................................................................................ 2
Required equipment ...................................................................................................................................................... 3
Supported components ................................................................................................................................................ 3
Before you begin ............................................................................................................................................................. 4
Shutdown system procedure ...................................................................................................................................... 4
CSS-OD: Battery Cabinet 102.4kW ..................................................................................................................... 4
CSS-OD: Battery Inverter 50kW ........................................................................................................................... 5
CSS-OD: Commercial Backup Interface 100kW ............................................................................................. 6
Perform maintenance for the CSS-OD Battery Cabinet 102.4kWh .............................................................. 7
Battery Cabinet safety instructions ..................................................................................................................... 7
Monthly maintenance routine .............................................................................................................................. 8
Quarterly maintenance routine ............................................................................................................................ 9
Semi-annual maintenance routine ................................................................................................................... 10
Annual maintenance routine .............................................................................................................................. 11
Device glossary for the CSS-OD Battery Cabinet 102.4kWh .................................................................. 12
CSS-OD Battery Inverter 50kW ................................................................................................................................ 13
Semi-annual maintenance routine ................................................................................................................... 13
Annual maintenance routine .............................................................................................................................. 14
Location and designation of the Battery Inverter component's ........................................................... 14
CSS-OD: Commercial Backup Interface (BUI) 100/250kW ............................................................................. 15
Important safety instructions .............................................................................................................................. 15
Semi-annual maintenance routine ................................................................................................................... 15
BUI cabinet inspection ........................................................................................................................................ 16
SolarEdge CSS-OD Routine Maintenance Guide
Version 1.0, November 2024
1
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Summary of Contents for SolarEdge CSS-OD
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Page 1: Table Of Contents
Version 1.0, November 2024 SolarEdge CSS-OD: Routine Maintenance Guide This Maintenance Guide pertains to the CSS-OD solution in both grid-tied topology (without Backup) and in Backup-enabled topology (with backup). Below, you can find the relevant devices for your site's topology. -
Page 2: Handling And Safety Instructions
While performing maintenance, make sure to display a warning sign indicating that the switch must remain in the OFF position, and for the BUI, the use of the mechanical interlock is mandatory for safety reasons. SolarEdge CSS-OD Routine Maintenance Guide... -
Page 3: Required Equipment
CAUTION! Do not open the door to maintain the Battery Cabinet in rainy, humid or windy days. SolarEdge shall not be held liable for any damage caused by violation of the notice. CAUTION! Do not wear jewelry or metal accessories, such as watches, during maintenance. -
Page 4: Before You Begin
1. Open the main front door of the battery cabinet and secure it with a holding bar. 2. Turn OFF the numbered switches in the following order: a. (1) Cluster Management Unit DC Breakers (x2) b. (2) DC Switches (x2) c. (3) Input AC Aux (x2) d. (4) AC Switches (x2) SolarEdge CSS-OD Routine Maintenance Guide... -
Page 5: Css-Od: Battery Inverter 50Kw
3. Verify that the cluster management LED indicator is turned OFF for all batteries underdoing maintenance. CSS-OD: Battery Inverter 50kW To shut down the battery inverter: 1. Turn OFF both DC switches on the battery inverter. 2. Verify the operation indicator is OFF on the battery inverter. SolarEdge CSS-OD Routine Maintenance Guide... -
Page 6: Css-Od: Commercial Backup Interface 100Kw
Version 1.0, November 2024 CSS-OD: Commercial Backup Interface 100kW To shut down the BUI: 1. Open the main front door of the BUI and secure it with a holding bar. 2. Turn OFF the switches in the following order: a. (1) QDC.APS b. -
Page 7: Perform Maintenance For The Css-Od Battery Cabinet 102.4Kwh
WARNING! Do not open the door to maintain the battery cabinet in rainy, humid or windy days. SolarEdge will not be responsible for any damage resulting from failure to comply with this notice. WARNING! The battery cabinet poses potential hazards. -
Page 8: Monthly Maintenance Routine
Version 1.0, November 2024 Monthly maintenance routine If CSS-OD is installed in ambient temperature higher than 35°C or lower than 0°C, the following maintenance needs to be performed monthly. Power – Device Inspection Description Required HVAC External and There are no visible signs of [Total est. -
Page 9: Quarterly Maintenance Routine
We only recommend externally cleaning the filter with the high-pressure water gun or air gun. In sandstorm-prone areas, we recommend cleaning the filter after each sandstorm and before each summer. Carefully follow the procedure for Shut down system. SolarEdge CSS-OD Routine Maintenance Guide... -
Page 10: Semi-Annual Maintenance Routine
[Est. time: 2 min.] starter box has no power. Check the fire suppression module status on the HMI main screen. Carefully follow the procedure for Shut down system. SolarEdge CSS-OD Routine Maintenance Guide... -
Page 11: Annual Maintenance Routine
(See Figure 5) units (x2) [Total management unit. est. time: 3 min.] [Est. time: 3 min.] For image, see Figure 5. Carefully follow the procedure for Shut down system. SolarEdge CSS-OD Routine Maintenance Guide... -
Page 12: Device Glossary For The Css-Od Battery Cabinet 102.4Kwh
Version 1.0, November 2024 Device glossary for the CSS-OD Battery Cabinet 102.4kWh The following glossary depicts the necessary equipment to perform routine maintenance on the CSS-OD Battery Cabinet 102.4kWh. Device Image Battery cabinet HVAC vent Figure 1 HVAC external fan filter... -
Page 13: Css-Od Battery Inverter 50Kw
Verify if BAT1 & BAT2 DC switches are in the correct position. [Est. time 1 min.] Repainting If the external paint of the battery inverter is damaged, it needs to be repainted. [Est. time 5 min.] SolarEdge CSS-OD Routine Maintenance Guide... -
Page 14: Annual Maintenance Routine
Replace any blurred or damaged symbols. [Est. time 1 min.] Location and designation of the Battery Inverter component’s Device Image CSS-OD: Battery Inverter Air Duct Figure 6 BAT1 & BAT2 DC Switches Figure 7 SolarEdge CSS-OD Routine Maintenance Guide... -
Page 15: Css-Od: Commercial Backup Interface (Bui) 100/250Kw
Version 1.0, November 2024 CSS-OD: Commercial Backup Interface (BUI) 100/250kW Important safety instructions For safe and effective maintenance of the CSS system, carefully read and adhere to the following safety requirements. CAUTION! Prior to starting the maintenance procedure, disconnect all power sources and initiate the Lockout-Tagout (LOTO) process to ensure they remain disconnected throughout the maintenance. -
Page 16: Bui Cabinet Inspection
Filter maintenance To clean the front door filter: 3. Open and secure the front door 4. Perform and validate shutdown procedure. For details, see Shut down system. 5. Find the main filter on the front door. SolarEdge CSS-OD Routine Maintenance Guide... -
Page 17: To Clean The Rear Door Filter
5. After it is completely dry, reinstall and secure the filter cotton to the ventilation port using the four M4 screws. To clean the bottom rear door: 1. Open the bottom rear door using a Phillips screwdriver PH3 to remove three M6 screws from the lower panel. SolarEdge CSS-OD Routine Maintenance Guide... - Page 18 5. After it is completely dry, reinstall and secure the filter cotton to the ventilation port using the four M4 screws. 6. Reinstall the bottom filters. 7. Secure the bottom rear door panel of the BUI with three M6 screws using the Phillip screwdriver (PH3). SolarEdge CSS-OD Routine Maintenance Guide...
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Page 19: Device Glossary For The Bui 100/250Kw
[Est. time: 5 min.] [Total est. time 20 min.] If the fan is obstructed, clean it immediately. [Est. time: 15 min.] The fans are located at the rear of the cabinet, as shown in the table below. SolarEdge CSS-OD Routine Maintenance Guide... - Page 20 6. Loosen the six M4 screws counterclockwise on the AC fan fixing plate using a Phillips screwdriver (PH2). 7. Remove the fixing plate of the AC fan, then proceed to smoothly extract the fan's filter cotton, as depicted in the image below. SolarEdge CSS-OD Routine Maintenance Guide...
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Page 21: Door Seal Inspection
9. Reassemble all components in their original positions. Door seal inspection The sealing strip must be inspected thoroughly and promptly replaced if damaged to prevent water infiltration into the BUI cabinet. [Est time: 5 min.] SolarEdge CSS-OD Routine Maintenance Guide... -
Page 22: Annual Maintenance Routine
[Est. time: 5 min.] Grounding and Verify the following: Equipotential Proper grounding with Bonding resistance under 4Ω. [Est. time: 5 [Total est. time: min.] 10 min.] Accurate equipotential connection within the BUI. [Est. time: 5 min.] SolarEdge CSS-OD Routine Maintenance Guide...
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