Friedrich VRP Series Service & Parts Manual

97 PB
COMPONENTS TESTING
Driver Board Pin out
1. Check power in L1 and L2.
2. Communication to Rs‑485 board.
3. Power and signal out.
4. Compressor UVW out.
5. Remove power from the unit and allow two minutes for capacitors to discharge before attempting to take continuity
readings.
6. Check for continuity on the fuses. If fuses are blown, replace driver board.
7. DIP SWITCH 1: OFF
8. DIP SWITCH 2 : OFF
Figure 613 (Driver Board)

Friedrich VRP Series Specifications

General

Brand	Friedrich
Model	VRP Series
Category	Heat Pump
Language	English