Antminer T19 owner hub: air and Hydro evidence boundaries

T19 family identification: Air-cooled T19 and T19 Hydro model 208-A are different installation classes with different power and cooling requirements. Identify the full nameplate before using a specification, firmware package, control board, PSU, or repair procedure.

Verified family	Exact supported lanes	Installation class	Reference
T19 air	84T exact; 88T unresolved	Forced-air; exact electrical and environmental fields unresolved in the cited specification	T19 air reference
T19 Hydro, model 208-A	119T, 125.5T, 132T, 138.5T	342–418 V AC plus engineered liquid loop	T19 Hydro reference

Contained identity: T19 Pro Hyd

Do not use the published “T19 Pro Hyd” record as a specification source. Its 235 TH/s, 5,170 W, 22 J/TH, sound, dimensions, and weight are not supported by the exact T19 or T19 Hydro primary records reviewed here. It is not merged into either matrix. Confirm the physical nameplate and route the unit to the matching exact-model reference before firmware, installation, or repair work.

Preflight: every T19

1. Photograph the miner, control-board, and PSU labels; record the full model, serial, board revision, and installed firmware.
2. Confirm that the firmware package explicitly matches that model and control-board revision.
3. Have a qualified person verify the supply, phase arrangement, circuit capacity, protection, grounding, conductors, connector, and cord.
4. Keep air and hydro service assumptions separate; similar 19-series names do not establish compatibility.

Additional hydro preflight

1. Confirm model 208-A and the exact performance lane.
2. Engineer coolant chemistry, 8 L/min ±10% flow, maximum 3.5 bar pressure, heat rejection, filtration, leak detection, and safe shutdown.
3. Respect the published water-temperature and PCB shutdown boundaries.
4. Do not hot-plug power or signal wiring, and prevent loss of power during firmware upgrades.

Firmware, troubleshooting, and repair

• Select firmware by exact model and board; read the official download procedure.
• Diagnose T19 temperature faults.
• Request T19 hardware repair.
• Compare T19 and T21 using their exact canonical specifications.

Evidence boundaries: the air 88T lane and malformed T19 Pro Hyd fields remain withheld. No cross-model firmware, controller, hashboard, PSU, tuning, sound, economics, residential-suitability, price, or lifecycle claim is made.

Primary evidence: official T19 air, T19 Hydro, consolidated liquid-cooling, setup, firmware-download, and PSU-selection records linked from the two model references. Reviewed August 27, 2026.