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Run this checklist top to bottom on every Kent hybrid installation — then follow with the platform-specific list. Field order is: environment → electrical pre-checks → power-up → function tests → documentation.
For trained and authorized installers only. Isolation rules from Isolation & Shutdown apply throughout this checklist.

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A. Environment

Work through the environment section with all power off and before any electrical connections are made.
  • Site and environment photo audit — photograph canopy/shade, clearances, glands and drip loops, and confirm no drip sources above the unit. Pass: full set per the Site Photo Checklist. 📷
  • Wall/mount integrity — pull-check every anchor, verify the bracket is level, and confirm the unit is fully secured. Pass: no movement under pull-check; level confirmed.
  • Clearances measured per the platform figures. Pass: all measured clearances meet or exceed the platform minimums. 📷

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B. Electrical pre-checks (everything OFF)

Do not energise anything until every item in this section is ticked.
  • Earth continuity and pit resistance — verify PE continuity to the inverter earth point(s); use an earth tester at the pit and photograph the reading. Pass: continuity confirmed; resistance reading logged and photographed. 📷 Escalate if soil resistance is poor.
Pending Kent validation. [KNB-VAL-14] Minimum acceptable pit resistance is under confirmation. Until published here: measure, photograph, and escalate if soil resistance is poor — do not improvise an earth standard.
  • PV string open-circuit voltage and polarity — meter every string before applying DC. Pass: Voc is below the platform limit, polarity is correct, and values are logged.
  • Battery polarity and terminal torque — check polarity before closing the battery breaker; torque to the platform-page value. Pass: polarity confirmed correct; terminals torqued to spec.
  • Grid vs Backup port verification — trace and label both AC runs; confirm by continuity test. Pass: grid supply lands on the Grid port; essential loads land on the Backup port only. 📷
  • Kent Lithium Battery comm cable — confirm the labelled Kent F1 comm cable (pins 4–5 crossover) is fitted between the battery and the inverter. A straight patch lead will not communicate. Pass: labelled crossover cable in place and photographed. 📷
  • SPDs fitted — Type II SPDs on AC and DC sides, correctly earthed. Pass: fitted and fault flags are healthy.

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C. Power-up

Apply power in the official sequence only. Do not deviate.
  • Official power sequence followed — AC breaker first → PV DC → battery last. Power-off is the exact reverse: battery first. Pass: clean boot with no sequence faults.
The power-up sequence is the same for both platforms: AC first, battery last. The power-down sequence is the reverse: battery first, AC last. Both sequences are shown on the platform commissioning pages.

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D. Function tests

Run every test in this section before completing documentation.
  • BMS handshake (closed loop) — the inverter display must show the battery model name and a live SOC percentage that updates. Pass: exact SOC visible and updating. If this fails, check the crossover comm cable before touching any settings.
  • Battery charge and discharge test — drive current in both directions and watch against the platform limits. Pass: both charge and discharge operate within limits.
  • CT/meter sanity — direction and phase — with grid ON and PV OFF, the display must read import; then step known loads per phase and verify. Pass: signs and phases correct on the display. Read the CT ratio from the shipped CT nameplate and set exactly that value.
Pending Kent validation. [KNB-VAL-08] The shipped CT scheme and ratio per Kent SKU are under confirmation. Until published here: read the ratio from the shipped CT’s nameplate — never assume a default.
  • Zero-export configuration and witness test (export-limited sites only) — configure per the platform page; then with PV generation high and site load minimised, watch the utility meter for sustained export. Pass: no sustained export above the configured limit. 📷
  • Black-start / backup transition — with real essential loads connected, open the grid breaker. Pass: loads ride through the transfer; clean reconnect on grid restore; no RCD trip.
  • N–E voltage in backup — measure neutral-to-earth voltage during the simulated outage and record the value. Do not improvise neutral–earth bonds.
Pending Kent validation. [KNB-VAL-04] The N–E voltage specification in backup mode is under confirmation. Until published here: record the measured value for Kent review — do not improvise neutral–earth bonding.

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E. Documentation

  • Datalogger stick fitted — seat the physical stick and photograph. Pass: stick seated in the correct port and photographed. 📷 Activation is completed with Kent Central Command — documentation to follow.
  • Settings snapshot — photograph every settings screen after final configuration. Pass: every screen captured. 📷
  • Handover and sign-off — complete the customer walkthrough, leave the DO/DON’T handover card on site, and capture the customer’s signature. Pass: signed record with the full photo set attached.

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Common mistakes

  • Blaming settings for a BMS comm failure that is actually the cable — the crossover check comes before any settings work.
  • Running the backup test with a desk lamp instead of the actual essential loads — the test must reflect the real installation.
  • Leaving zero-export “configured” but never witnessed against the utility meter — configuration without a witness test is not a pass.