thermIQ/docs/HARDWARE.md

ThermIQ — Hardware Reference

Crypto Miners

Item	Spec
Model	Antminer S19J (x2)
Power supply	2x Schuko per miner
Power isolation	Individual LS breaker + contactor per miner
Contactors	K10 (Miner 1), K11 (Miner 2)
Feedback	Hilfskontakt per Schütz → RevPi DI
API	Braiins OS gRPC, port 50051 (PerformanceService)
Auth	Bearer token (aWzKUJcmbyBMiTbo — replace in production)
Network	Fixed IP, wired Ethernet only

Pumps

ID	Model	Supply	Control	Notes
P3	noname pump (miner cooling loop)	230 V AC	Relay on/off via RevPi DO	No speed control — simple contactor
P4	Wilo Stratos PICO plus Art.-No. 4244373	230 V AC	0–10 V via RevPi AIO AO1	Shielded cable
P5	Wilo Stratos PICO plus Art.-No. 4244373 (Glykol)	230 V AC	0–10 V via RevPi AIO AO2	Shielded cable; ⚠️ missing dotted line in Funktionsschema_Vorlage_Hydraulik.pdf

BMS Connect Module (Wilo Art.-Nr. 4257834): retrofit module for BMS integration.

• 0–10 V analog input for setpoint
• SSM/SBM relay outputs (potential-free)
• Digital input (configurable: extern AUS / MIN / MAX)
• Max ambient: 60°C, SELV galvanically isolated

Valves

ID	Model	Actuator	Supply	Control
RV1	Belimo C320Q-J	CQ230A	230 V AC	Relay K3/K4 (AUF/ZU)
RV2	Belimo C320Q-J	CQ230A	230 V AC	Relay K5/K6 (AUF/ZU)

Note: If only one control input per valve is used, relay block can be reduced. Hand/0/Auto switches recommended for commissioning.

Dry Cooler (Rückkühler)

Item	Spec
Fan	230 V AC
Relay	K2 (24 V DC coil, switches 230 V)
Control	RevPi DIO DO_RK
Feedback	Optional fault signal → RevPi DI
Interlock	Enable only when oil and pumps OK

Heat Pump

Item	Spec
Model	Buderus WLW186i
EVU Input	I1 — dry contact ONLY
Relay	K7 (potential-free, 24 V DC coil)
Control	RevPi DIO DO_EVU_SPERRE
CRITICAL	Never inject voltage into EVU I1 — contact only

PLC: RevolutionPi

Module	Function
Core	CPU, Ethernet, Linux
DIO	Digital I/O (relays, contactors, safety feedback)
AIO	Analog I/O (0–10 V pump setpoints, sensors)

RevPi runs Linux, MQTT client, connects via LAN to industrial switch. If RevPi crashes → miners must shut down (hardware safety ensures this).

Inverters

Item	Spec
Model	Deye hybrid inverter(s)
Interface	RS485 Modbus (NOT Modbus TCP over LAN — unreliable)
Library	sunsynk for Raspberry Pi
Ref	YouTube: https://www.youtube.com/watch?v=u9df0YHfNtM

Energy Meters

• RS485 Modbus
• Connected via USB RS485 gateway on Raspberry Pi or RevPi

Network Hardware

Item	Spec
Switch	Industrial, wired Ethernet only
Site Server	Intel N100 Mini PC (e.g. Beelink EQ12) — Node-RED + Mosquitto + Home Assistant (Phase 1); DIN rail via adapter
RevPi	Fixed IP, MQTT client
NTP	Required for timestamps
WiFi	NOT used for any critical energy component

Power Distribution (Schaltschrank)

Component	Notes
Q0	FI/LS (RCD + circuit breaker) for whole cabinet
230 V AC bus	From Q0
24 V DC PSU	Fed from AC bus, supplies RevPi, relay coils, safety circuit
LS Miner 1/2	Individual breakers before K10/K11
LS Pumpen	Breaker for P3, P4, P5
LS Ventile	Breaker for RV1, RV2
LS RK	Breaker for Rückkühler fan

Storage Components

• Pufferspeicher: buffer tank for thermal energy
• Warmwasserspeicher: domestic hot water tank
• Batteries: coupled to Deye inverter for energy storage
• Smartmeter: grid metering

Sensors

Hardware-Sicherheitssensoren (direkt in Safety-Kette)

• Temperature sensor (TEMP MAX — NC contact to safety relay)
• Emergency stop buttons (E-Stop 1, E-Stop 2 — NC)
• Reset button (NO)

Hinweis: Ein physischer Durchflusssensor (FLOW OK) wird nicht verbaut. Die Überwachung des Miner-Kühlkreisdurchflusses erfolgt softwareseitig über Temperaturauswertung (PFLICHTENHEFT_SOFTWARE.md, SA-001).

Analoge Temperatursensoren (RevPi AI)

• AI1 — Pufferspeicher-Temperatur (PT1000 oder 4-20 mA, TBD)
• AI2 — Warmwasserspeicher-Temperatur (PT1000 oder 4-20 mA, TBD)
• AI3 — Außentemperatur (optional, für Übergangs-Modus)

Miner-Temperaturen (via gRPC)

• Miner 1 Chip-Temperatur — ausgelesen via Braiins OS gRPC API
• Miner 2 Chip-Temperatur — ausgelesen via Braiins OS gRPC API