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Here for sale is GREATCOOL 12V Variable-Speed Miniature Refrigeration Compressor Kit.
This kit combines a hermetic 12V DC rotary compressor, a dedicated variable-speed compressor driver, and a programmable compressor control board for building compact custom refrigeration and cooling systems.
Compressor performance depends on operating speed and refrigeration system conditions. The published cooling-capacity, input-power and COP values are manufacturer test results under specified test conditions. Actual performance will vary with condenser temperature, evaporator temperature, airflow, expansion device, refrigerant charge and overall system design.
·Custom miniature refrigeration systems
·Compact DC cooling equipment
·DIY refrigeration and thermal-management projects
·Portable or specialized cooling systems
·Engineering prototypes and experimental refrigeration systems
·This listing is for the core components of a custom refrigeration system. It is not a complete plug-and-play refrigeration appliance.
·A complete refrigeration system may also require an evaporator, condenser, expansion device or capillary tube, refrigerant tubing, refrigerant charge, power supply, fans, fittings and other components appropriate to the application.
·The compressor and driver are designed to work as a matched set. Do not substitute an incompatible compressor or driver without verifying electrical and communication compatibility.
·The compressor driver uses TTL-level UART communication. It is not an RS-232 interface.
·The compressor driver requires an appropriate DC power supply capable of supplying the required current.
·Follow the wiring, operating limits, protection requirements and installation instructions in the supplied technical documentation.
·Performance specifications are test results under specified conditions and are not guaranteed values for every refrigeration system.
About the ZH2012A Compressor:The ZH2012A compressor is a DC 12V hermetic rotary refrigeration compressor designed for compact cooling systems. Featuring a brushless DC (BLDC) motor and R134a refrigerant, it delivers up to 300W of cooling capacity in a palm-sized, lightweight package — ideal for DIY cooling projects, portable fridges, and solar-powered refrigeration units.
Pls attention that the compressor here is a refrigeration compressor for R134a refrigerant,NOTan air compressor for pumping air.
Compressor Specifications:
·Model: ZH2012A
·Brand: Greatcool
·Product Name: Hermetic Rotary Refrigeration Compressor
·Compressor Type: Hermetic rotary compressor
·Motor Type: Brushless DC motor
·Refrigerant: R134a
·Rated Voltage:DC 12V
·Input Power: 85W (Nominal), Max 100~135W
·Cooling Capacity: 245W (Nominal), Max 300W
·Speed Range: 1800–4800 RPM(variable speed)
·Maximum Current: 16 A
·Displacement: 1.9 cm³/rev
·Lubricant / Oil Charge: POE 68 / 40mL
·Cooling Method: Forced-air cooling
·Noise: 48-55dB
·Weight: 700~725g
Working Temperature Range:
·Evaporating Temperature: -18℃ ~ +24℃
·Condensing Temperature: 27℃ ~ 71℃
·Ambient Operating Temperature: -30℃ ~ +60℃
Notes:
Cooling capacity varies with rotating speed. Nominal cooling is 245W, peak cooling capacity is up to 300W at high speed.
Compressor Driver
·Model: GP1212C
·Rated input: 12 VDC
·Input voltage range: 8–16 VDC
·Maximum input current: 17 A
·Maximum input power: 180 W
·Speed range: 1,800–4,800 RPM
·Control method: Sinusoidal vector control
·Efficiency: >90%
·Control interface: Isolated TTL-level UART communication
·Protection: Overvoltage, software/hardware overcurrent, overtemperature, stall and phase-loss protection
·Fault recovery: Automatic restart approximately 3 minutes after a fault
Compressor Control Board
·Model: GE2206-CPCtl
·Supply voltage: 8–48 VDC (55 V maximum)
·Display: 4-digit 7-segment display
·Controls: 4 function buttons
·Temperature inputs: TP1 and TP2 NTC sensor inputs
·Outputs: 3 low-side MOSFET outputs for pump/fan loads
·Control functions: PID temperature control and manual compressor speed control
·Communication: Dual serial interfaces
·Driver parameter configuration supported

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