Refrigeration Schematic; Typical Operating Conditions - Bosch FHP RT-20 Installation, Operation And Maintenance Manual

Refrigeration System Schematic

Typical Operating Conditions

Location
Before water-to-refrigerant
heat exchanger
Cooling
After water-to-refrigerant
Mode /
heat exchanger
Refrigerant
After Thermostatic
Properties
Expansion Valve
After Airside Coil
Water entering the coaxial heat exchanger is warmed by the heat it absorbs from the refrigerant and leaves
about 10°F warmer.
Location
Before Airside Coil
After Airside Coil
Heating
Mode /
After Thermostatic
Refrigerant
Expansion Valve
Properties
After water-to-refrigerant
heat exchanger
Water entering the coaxial heat exchanger is cooled because of the heat being absorbed by the refrigerant
and leaves about 6
°F cooler.
Refrigerant State Temperature
Hot Vapor
Warm Liquid
Saturated Liquid-
Vapor mix
Cold Vapor
Refrigerant State Temperature
Hot Vapor
Warm Liquid
Saturated Liquid-
Vapor mix
Cold Vapor
Pressure
150°F 330 psig
85°F 330 psig
45°F 144 psig
55°F 145 psig
Pressure
130°F 250 psig
65°F 250 psig
35°F 120 psig
45°F 120 psig
Model RT Energy Recovery Unit
Superheat/Subcool
50°F Superheat
15°F Subcool
10°F Superheat
Superheat/Subcool
50°F Superheat
15°F Subcool
10°F Superheat
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