Charging Circuit - Honeywell Silent Knight IFP-2000 Module 3 Installation Manual

Check battery connections
1. With AC on
Batteries hooked up
Should read 27.4 VDC
2. With each battery only
Should read 13.7 VDC
3. 3. Batteries under load (No AC) Batteries under load (No AC)
Voltage should hold or
slowly drop
Starting at 27.4 VDC

Charging Circuit

Charging Circuit
27.4 VDC