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PSHC01134AC

PSHC01134AC
Precision Superheat Controller R134a
Vendor Name:
Johnson Controls
URI Part Number:
PSHC01134AC
Vendor Part Number:
PSHC01134AC
Description:
Precision Superheat Controller R134a
Shipping Weight (Lbs.):
0.35
Prop65:
WARNING: This product contains chemicals known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov

Together, the QREV with the PSHC kit forms an electronically controlled expansion valve that will maximize evaporator efficiency. It allows users to capture energy savings by reaching targeted superheat faster and controlling the valve more precisely, through varying load conditions. This unique silicon-based MEMS technology eliminates valve wear. There are no stepper motor failures associated with this type of technology. The PSHC comes loaded with any one of 17 approved refrigerants for easy commissioning, plus it has an on-board pressure sensor. The wiring harness, which completes the kit, includes a temperature sensor. This new product combination is easy to install, precise, fast and reliable.

  • Fast, accurate control of refrigerant flow and superheat for maximum evaporator efficiency
  • Silicon-based MEMS technology eliminates valve wear, extending life: no stepper motor failures
  • Preconfigured PSHC reduces install and commissioning time
  • Closed loop solution: no front-end controllers needed
  • ModBus RTU: integrate into popular refrigeration control systems for remote visibility
  • Power failure: valve closes with loss of power, protecting compressor from refrigerant flood back
  • High durability, reliability
  • Backed by a 3-year warranty


  • Closed loop control
  • Internal MEMS suction pressure sensor
  • External temperature sensor
  • Built in PWM driver
  • Multiple refrigerant database: controls any one of 17 approved refrigerants
  • Communication: RS485 serial bus with Modbus RTU protocol
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