> ## Documentation Index
> Fetch the complete documentation index at: https://learning.kent.co.in/llms.txt
> Use this file to discover all available pages before exploring further.

# Kent G3 Commissioning Checklist: Three-Phase Steps

> Kent G3 Hybrid Inverter additions — platform pre-checks, G3 power sequence, Quick Setting order, and three-phase tests. Run after Common checklist.

These are the platform-specific additions for the Kent G3 Hybrid Inverter (10 / 12 / 15 kW three-phase). Run the [Common Commissioning Checklist](/checklists/common-commissioning) first — this list never applies to Kent M1.

<Warning>
  **For trained and authorized installers only.** Do not begin platform steps until the Common checklist is fully completed.
</Warning>

## Platform pre-checks

Verify these items before the G3 power-up sequence.

* [ ] **Altitude** — confirm the site is at or below **4000 m**. **Pass:** confirmed.
* [ ] **Mounting angle** — unit mounted vertical within **±5°**; clearances per the G3 figures including ≥ 500 mm from the ground at the bottom and fan-side clearances (air in from the left, out to the right) unobstructed. **Pass:** angle measured; clearances measured and photographed. 📷
* [ ] **Grounding** — external grounding conductor and heat-sink ground terminal connected per the manual figure. **Pass:** both conductors landed and photographed. 📷
* [ ] **Phase rotation** — check with a rotation meter at the grid terminals; match the utility's L1–L2–L3 to the inverter's AC terminals. **Pass:** rotation correct; no phase alarm at boot.

## Power-up and first configuration

Use the on-device HMI (four-key navigation). Access the installer session before entering settings.

<Steps>
  <Step title="DC switch discipline">
    Operate the DC switch only when string current is below **0.5 A** — verify with a clamp ammeter before every operation. This is an arc-prevention rule, not a guideline. **Pass:** rule followed at every DC switch operation.
  </Step>

  <Step title="Power ON in the G3 sequence">
    Grid AC ON first → complete first-time setup → then PV DC switch ON → battery breaker ON. Power-off is the reverse: battery first. **Pass:** clean boot with no fault codes.
  </Step>

  <Step title="Use only the partner-gated password for advanced settings">
    Day-to-day commissioning uses the standard HMI menus. The professional menu requires the partner-gated installer password — never shared, never bypassed. **Pass:** no unauthorized professional-menu changes made.
  </Step>

  <Step title="Complete Quick Setting in the HMI order">
    **Time → Meter/CT → Grid code → Storage mode → Battery setting**. Do not skip steps or change the order. **Pass:** each step confirmed and photographed. 📷
  </Step>

  <Step title="Select the correct battery model">
    Select the LV battery-brand protocol family — **PYLON\_LV** — for the Kent F1 battery. Selecting nothing, the HV entry, or the wrong model raises a BatName-FAIL alarm. **Pass:** battery model set; live SOC displayed. 📷
  </Step>

  <Step title="Set grid code">
    Set the grid code per the Kent parameter sheet for the site's DISCOM. Never improvise grid protection parameters. **Pass:** grid code set from the parameter sheet; DISCOM name recorded.

    <Warning>**Pending Kent validation.** \[KNB-VAL-01] Grid code parameters are confirmed per DISCOM. Use only the Kent-issued parameter sheet — never improvise grid protection settings.</Warning>
  </Step>
</Steps>

## Three-phase behaviour

* [ ] **Per-phase load test** — step a known load on each phase individually; each phase must feed its own load with correct CT mapping. **Pass:** per-phase power readings correct on the HMI.

<Warning>
  **Pending Kent validation.** \[KNB-VAL-06]
  The shipped-firmware default for per-phase (unbalanced) output and the unbalanced-load capability are under bench confirmation. Until published here: do not promise more than 100% of the per-phase rating on any single phase. Record the per-phase test results in the commissioning record.
</Warning>

* [ ] **Backup transition** — open the grid breaker with real essential loads connected on the Backup port. **Pass:** loads ride through the transfer; clean reconnect on grid restore.

## Alarm handling rule

* [ ] **One-restart discipline at boot** — if any alarm shows at first boot, power off in the correct sequence, **wait 5 minutes**, and restart once. If the alarm persists, stop and escalate — do not cycle repeatedly. **Pass:** rule followed; alarm code and result recorded and photographed. 📷

## Common mistakes

* Operating the DC switch under load "because it clicked fine last time" — the 0.5 A rule is an arc-prevention rule that protects both the switch and the installer.
* Skipping the installer login and configuring from a user session — advanced parameters are not accessible or accurate in a user session.
* Selecting PYLON HV (or leaving the battery model blank) instead of PYLON\_LV.
* Carrying Kent M1 menu passwords, parallel DIP positions, or battery menu habits onto this platform.

## Related pages

* [Common Commissioning Checklist](/checklists/common-commissioning)
* [Kent G3 Commissioning](/g3/commissioning)
* [Kent G3 Settings Reference](/g3/settings-reference)
* [Heat, Sun & Ventilation](/environment/heat-sun-and-ventilation)
* [When to Escalate](/troubleshooting/when-to-escalate)