Consumable Component Replacement Schedule

Component	Location	Replacement Interval	Replacement Notes
FS0050 Aerosol Fire Suppression	Cabinet-level and Pack-level	Every 5 years	Replace regardless of discharge status. Verify manufacturing date. Dispose properly.
UPS Battery (BCU Backup Power)	Inside High Voltage Box (HVB)	Every 5 years	UPS Battery Model: Phoenix UPS-BAT/PB/24DC/4AH - Battery Module 1274117 Replace to maintain uninterrupted logic power during AC loss. Refer to Remove the HVB and Access the Components Inside.
Dehumidifier (SDCS-PH60)	Inside cabinet	Every 5 years (or as required by your environment)	Replace if drying effectiveness is reduced.
TMS Coolant	Thermal Management System (TMS)	Every 10 years	Refer to TMS Removal and Replacement Procedure.
MSDs (Manual Service Disconnects)	One per battery pack	As needed	Replace if there is degradation in its physical condition.
Fire Detection Sensors	Inside cabinet and near packs	As needed	Replace when damaged or sensor response is degraded.

Notes and additional guidance

Record Keeping: All replacements must be documented in the service log, including part numbers, technician name, and date of service.
Genuine Parts: Use only parts specified or approved by Discover Energy Systems, for warranty compliance and safety certification integrity.
Post-Service Verification: After component replacement, verify normal system operation via LYNK Access or the inverter interface. Clear any related alarms and confirm thermal and electrical parameters are within range.