Hot Gas Reheat Valve; Factory-Installed Refrigeration System Components - LG GEN2 Series Installation And Operation Manual

Factory-Installed Refrigeration System Components

Packaged DX Cooling with Three Way Hot Gas Reheat and Hot Gas Bypass
1. Compressor
2. High Limit Pressure Switch
The switch opens when refrigerant pressure
increases above the set point in the discharge line.
A manual reset is then required.
3. Hot Gas Reheat Valve (optional)
Units equipped with a reheat coil use a three-
way valve with actuator to control the supply air
discharge temperature of the unit during
dehumidification mode. The unit controller provides
a 0-10 VDC signal to control the amount of reheat
to meet the supply temperature set point
4. Hot Gas Reheat Coil (Optional)
5. Hot Gas Reheat Check Valve (Optional)
6. Condenser Fans
7. Condensing Coil
8. Liquid Receiver (Optional)
9. Liquid Line Filter Drier
10. Sight Glass
11. Fan Cycle Switch(es)
The switch(es) open or close based on liquid
refrigerant pressure to control the condensing fans
to maintain liquid pressure.
12. Thermostatic Expansion Valve (TVX)
Each unit is equipped with a TVX on each refrigerant
circuit. The valve controls the flow of liquid refrigerant
entering the evaporator coil by maintaining a constant,
factory-set superheat of 10°F. The valve is adjustable and
is located on the side of the evaporator coil and can be
accessed through the coil access panel.
13. Evaporator Coil
14. Low Limit Pressure Switch
The switch is installed on the suction line and disables
the DX system when the suction pressure drops below
the set point. The switch will auto reset when the
pressure rises above the auto-reset set point.
15. Service Access Ports
16. Pressure Gauge & Transducer (Optional EC
condenser fans only)
See Optional Electronically Commutated (EC) Condenser
Fans under the component operation.