Main Controller - Friedrich VRP Series Service & Parts Manual

Component Identification

Main Controller

36
OPERATION
COMPONENT IDENTIFICATION-MAIN CONTROLLER
FIGURE 312 (
• Relay and Control Logic (VRP Brain)
• Diagnostic Logic
• Communicates with:
• Wall Controller (WC)
• Heater Board
• Driver Board
• Handles/Controls:
• Electronic Expansion Valve (EEV)
• Pressure Switches
• Indoor Blower
• Reheat and FreshAire Relays
• Upgradeable
• Manual via SD card
)