Figure 8 Optional Customer-Installed High Temperature Fan Control System; Figure 9 Oil Cooling And Thermal Valve - Emerson Copeland Scroll SZO22 Installation, Operation & Maintenance Manual

Single-Compressor Module
Figure 8 Optional Customer-Installed High Temperature Fan Control System
• Compressor requirements: 0.8 to 2 GPM (3.0-755 LPM) flow rate
• Thermal oil bypass valve, standard setting: 200°F (93°C) / 250°F model specific
• Thermal bypass valve operation (valve's purpose is to provide discharge temperature control)
• Oil flow on valve is A to B when the unit is cold and A to C when the heat rises (see Figure 9).
Figure 9 Oil Cooling and Thermal Valve
1st-Stage Separator
A
C
Oil Cooler
11
Return
B
to Compressor
Installation
2008SSD-34 (5/11)