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Flow and Pressure Diagram, CSR, Cool with Modulation (or Power Limit)
9. Warm Gas Bypass Valve
Is a normally closed solenoid.
It opens when energized to reduce cooling capacity when the Cooling Capacity in the Data
menu display is about 50% or less.
18. Stepper Motor Valve
Is a normally open valve.
It closes when energized. As the signal strength is increased, the valve closes more. The
controller regulates the signal to the valve based on sensor temperature and power limit
requirements.
21. Liquid Injection Valve (LIV)
Is a normally closed valve.
It opens when energized. When liquid injection is required, the valve is pulsed open and
closed on a 60 second duty cycle. Liquid injection is controlled by the compressor
discharge temperature and the temperature control algorithm.
29. Coil/Dehumidify Solenoid Valve (DSV)
Is a normally open valve.
It closes when energized to reduce refrigerant distribution to 50% of the evaporator coil.
The controller energizes the valve when the modulation capacity decreases to 20%. The
valve remains energized until the modulation capacity increases to 25%.
High Pressure Gas
High Pressure Liquid
Low Pressure Gas
Low Pressure Liquid
Condensing High Pressure Gas
Low Pressure Vaporizing Liquid
Liquid Refrigerant Injection
Modulated Pressure
High Pressure Gas Injection
High Pressure Gas Injection
AXA0264
AXA0263
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