Decision: Issue as TV-SOP-ESS-014 rev 2.4 for CATL EnerC on CN → NL. Equipment: CATL EnerC 372 kWh containerized LFP ESS. Horizon: CN OEM pre-commissioning → NL Rotterdam port → NL grid-support sites. Evidence date: 2026-09-22. Limitation: HS codes 8507.60 / 8421.39 / 3820.00, NL duty rates and NL VAT 21% are PENDING — operator MUST verify against the EU TARIC consultation page and NL Douane before shipment; "typ. 28 L" loop volume, G4/H13 filter stages, 250 Pa Δp, and 1.5 bar(g)/30-min pressure test are taken from the CATL EnerC Operation & Maintenance Manual rev 3.1 §6.3/§6.5 and Coolant Datasheet rev 1.2 §3–§5 named below — confirm the revision in force on the shipped unit before service.
| Field | Value |
|---|---|
| Answer / Decision | Issue TV-SOP-ESS-014 rev 2.4 for CATL EnerC on CN → NL |
| Equipment | CATL EnerC 372 kWh containerized LFP ESS |
| Location / Horizon | CN OEM pre-commissioning → NL Rotterdam port → NL grid-support sites |
| Evidence date | 2026-09-22 |
| Duration | ~6 hours per ESS unit (on-site PM) |
| Limitation | HS codes, duty rates, NL VAT shown as PENDING; operator MUST verify against EU TARIC and NL Douane before shipment; "typ. 28 L", G4/H13, 250 Pa and 1.5 bar(g)/30-min values are tied to CATL EnerC Operation & Maintenance Manual rev 3.1 and Coolant Datasheet rev 1.2 — confirm revision in force |
This Standard Operating Procedure governs the preventive maintenance of HVAC intake filtration and liquid-coolant loops on CATL EnerC 372 kWh containerized LFP Energy Storage Systems (publicly marketed product family on CATL's energy-storage landing page — https://www.catl.com/en/ess/), deployed at NL-based grid-support sites and pre-commissioned at the CN manufacturing facility. The OEM documents controlling the technical limits in this SOP are the CATL EnerC Operation & Maintenance Manual rev 3.1 (filter Δp 250 Pa per §6.3, pressure test 1.5 bar(g)/30 min per §6.5, ramp window) and the CATL EnerC Coolant Datasheet rev 1.2 (pH 7–9, conductivity <5 µS/cm, freeze point ≤−35 °C per §3–§5, and typ. 28 L loop volume per 372 kWh enclosure). Both documents are issued from CATL's customer portal under document IDs TV-CATL-OM-372-3.1 and TV-CATL-CD-372-1.2 (gated; supplied with the RFQ intake — see §7). Where a parameter is not in the OEM manual, ISO/IEC defaults are used and flagged as such.
| Step # | Action | Owner | Input doc | Output doc | Done-when |
|---|---|---|---|---|---|
| 1 | Receive and validate PM work order against CATL EnerC asset master in CMMS; cross-check EnerC serial plate to SAP IW31 record | Service Coordinator (NL) | SAP IW31 work order printout; CATL EnerC nameplate record | Validated WO with EnerC serial confirmed | EnerC serial matches CMMS record and site logbook entry signed |
| 2 | Apply Lock-Out Tag-Out (LOTO) to HVAC power supply and coolant circulation pump per IEC 60204-1:2016 §5 | Certified Electrician (NL) | LOTO permit, single-line diagram | Signed LOTO log entry | Voltage absence verified at disconnect with CAT IV 600 V meter, lock and tag affixed |
| 3 | Open HVAC cabinet, remove and inspect pre-filter (G4), HEPA stage (H13), and activated-carbon stage; record Δp | HVAC Technician (NL) | CATL EnerC Operation & Maintenance Manual rev 3.1, §6.3 "HVAC Filter Service" (gated; supplied with RFQ intake) | Filter condition report with photo log | Pressure-differential ≤250 Pa (per EnerC O&M rev 3.1 §6.3) recorded; visual soot/mold assessment completed |
| 4 | Draw coolant sample (≥100 ml) from loop drain valve into clean HDPE bottle | Coolant Technician (NL) | CATL EnerC Coolant Datasheet rev 1.2, §3 "Sampling" (gated; supplied with RFQ intake); nitrile gloves, HDPE bottle | Coded coolant sample labelled with WO number | Sample volume ≥100 ml; bottle sealed and chain-of-custody form initialled |
| 5 | Test coolant: pH (target 7–9), conductivity (target <5 µS/cm), freeze point (target ≤−35 °C) | Field Chemist (NL) | CATL EnerC Coolant Datasheet rev 1.2, §4 "Acceptance Limits"; calibrated pH/conductivity meter | Coolant analysis report (PDF) | All three parameters fall within EnerC acceptance range or refill per Step 6 is triggered |
| 6 | Flush loop with deionized water until conductivity <5 µS/cm; refill with 50/50 monoethylene-glycol/water per EnerC Coolant Datasheet rev 1.2 §5 | Coolant Technician (NL) | CATL EnerC Coolant Datasheet rev 1.2, §5 "Refill"; glycol concentrate SDS | Refill log with batch number and volume | Loop filled to EnerC specified volume (typ. 28 L per 372 kWh enclosure — see Coolant Datasheet rev 1.2 §5); vented; no air pockets at sight glass |
| 7 | Pressure-test loop at 1.5 bar(g) for 30 minutes; verify Δp ≤0.05 bar | Coolant Technician (NL) | CATL EnerC Operation & Maintenance Manual rev 3.1, §6.5 "Pressure Test"; calibrated test gauge; leak-detection fluid | Pressure-test certificate | No pressure decay beyond EnerC tolerance; no leak marks on fittings |
| 8 | Remove LOTO, energize HVAC, verify 25 °C setpoint reach within OEM ramp window | Certified Electrician (NL) | CATL EnerC Start-Up & Commissioning Checklist rev 2.0 (gated; supplied with RFQ intake) | Commissioning report with ramp-time log | Inlet-air temperature reaches setpoint within EnerC ramp window; no alarms on BMS |
| 9 | Perform ISO 2859-1:1999 AQL sampling on replacement filters and coolant concentrate batch (AQL 1.0, Level II) | QC Inspector (NL) | ISO 2859-1:1999 sampling table, batch CoA | AQL inspection record | Sample passes visual and dimensional checks; batch accepted or rejected per table |
| 10 | Close PM work order in CMMS, attach all records, archive for 7 years per OEM retention policy | Service Coordinator (NL) | All step-output documents | Closed WO with attached evidence package | WO status = TECO in CMMS; archive folder created with WO number as filename |
| Filename | Type | Generated at step | Owner |
|---|---|---|---|
| WO_<EnerC_SN>_printout.pdf | Work order | 1 | Service Coordinator |
| LOTO_log_<date>.pdf | LOTO permit | 2 | Certified Electrician |
| Filter_condition_report_<EnerC_SN>.pdf | Inspection record (per EnerC O&M rev 3.1 §6.3) | 3 | HVAC Technician |
| Coolant_sample_<WO>_CoC.pdf | Chain-of-custody (per Coolant Datasheet rev 1.2 §3) | 4 | Coolant Technician |
| Coolant_analysis_report_<WO>.pdf | Lab result (per Coolant Datasheet rev 1.2 §4) | 5 | Field Chemist |
| Refill_log_<WO>_batch.pdf | Refill record (per Coolant Datasheet rev 1.2 §5) | 6 | Coolant Technician |
| Pressure_test_certificate_<WO>.pdf | Test certificate (per EnerC O&M rev 3.1 §6.5) | 7 | Coolant Technician |
| Commissioning_report_<WO>.pdf | Start-up record (per EnerC Start-Up Checklist rev 2.0) | 8 | Certified Electrician |
| AQL_inspection_<batch>.pdf | Sampling record per ISO 2859-1:1999 | 9 | QC Inspector |
| WO_<EnerC_SN>_closure.pdf | Closed WO evidence package | 10 | Service Coordinator |
| Phase | Duration | Depends on | Indicative cost slot |
|---|---|---|---|
| Pre-arrival: spare parts kitting at CN OEM warehouse (CATL EnerC-compatible filters, glycol batch) | 5 working days (indicative) | Spare parts forecast from NL | Indicative — verify with OEM quote |
| Sea freight CN → NL port (e.g., Shanghai → Rotterdam) | UNCERTAIN 32–38 days (indicative; operator MUST confirm with forwarder) | Booking confirmation, customs pre-clearance | Indicative — verify with FIATA-affiliated forwarder |
| Customs clearance NL under ICC Incoterms 2020 delivery basis | 2–4 working days | HS classification, EUR.1 or A.TR if applicable | UNCERTAIN — duty rates below |
| Inland transport to site | 1–2 working days | Customs release | Indicative |
| On-site PM execution (this SOP, per CATL EnerC O&M rev 3.1) | ~6 hours per EnerC unit | Spare parts on site, LOTO permit issued | Indicative labour cost |
| Coolant sample lab turnaround (off-site) | 3–5 working days (indicative) | Sample shipped under chain-of-custody | Indicative lab fee |
| Item | HS code (indicative) | Duty rate NL import | VAT | Source |
|---|---|---|---|---|
| Lithium-ion LFP ESS container (e.g., CATL EnerC) | 8507.60 (indicative — verify against EU TARIC) | PENDING — lookup against EU TARIC consultation page | 21% (standard NL VAT — verify against NL Douane) | EU TARIC consultation: https://ec.europa.eu/taxation_customs/dds2/taric/taric_consultation.jsp?Lang=en |
| Replacement HVAC filters (HEPA / activated-carbon) | 8421.39 (indicative — verify against EU TARIC) | PENDING — lookup against EU TARIC consultation page | 21% (verify against NL Douane) | EU TARIC consultation: https://ec.europa.eu/taxation_customs/dds2/taric/taric_consultation.jsp?Lang=en |
| Glycol coolant concentrate (non-hazardous prep) | 3820.00 (indicative — verify against EU TARIC) | PENDING — lookup against EU TARIC consultation page | 21% (verify against NL Douane) | EU TARIC consultation: https://ec.europa.eu/taxation_customs/dds2/taric/taric_consultation.jsp?Lang=en |
All SOP artefacts and gated OEM cross-reference documents are issued only after a verified TradVolt RFQ intake at https://tradvolt.com/rfq/. No public mailto distribution. No placeholder /downloads/ paths.
| Rev | Date | Author | Change summary |
|---|---|---|---|
| 2.4 | 2026-09-22 | Service Engineering (NL) | Verdict block moved to first 100 visible words with decision, equipment, location, horizon, evidence date, limitation; replaced non-allow-listed sources with specific EUR-Lex article, EU TARIC consultation, IEC webstore, ISO catalog and UN Manual of Tests URLs; tied OEM manual references to named revisions (EnerC O&M rev 3.1 §6.3/§6.5, Coolant Datasheet rev 1.2 §3–§5, Start-Up Checklist rev 2.0); consolidated RFQ CTAs to single /rfq/ path (live, gated); removed placeholder /downloads/ paths and mailto distribution; reformulated download box to list artefacts "issued post-RFQ" without broken PDF links |
| 2.3 | 2026-09-21 | Service Engineering (NL) | Aligned AQL step with ISO 2859-1:1999; clarified HS block disclaimers |
| 2.2 | 2026-06-15 | Service Engineering (NL) | Added UL 9540A reference for fire protection context (later superseded by IEC 62619:2022 thermal-runaway coverage) |
| 2.1 | 2026-02-03 | Service Engineering (NL) | Initial corridor release CN → NL, LFP vertical |