Notes:
10th Nov 21 Early estimates of the performance of the storage batteries under load suggests that they loose 10% of their energy every 20mins when under high load (oven on), and approximately 10% of their energy in 2 hours when under normal winter evening load (lights, heating pump etc). 10% of 7.5kW = 750 W.
Operation of charge control
User Manual p17 - 27
1. use go back button to select settings
2. use OK button to select settings
3. navigate to WORK MODE (No. 11) (up/ down arrows) and select
NOTE this is No. 12 in the user manual
4. navigate to TIME OF USE (No.2 ) should already be highlighted
5. Select Enabled (1) or Disabled (0) as required. Using buttons.
When DISABLED it will not charge from the mains electricity
When ENABLED it will charge at 2.5kWh from 12:30am until 4:30am
EVENTS
1st October 2022 Enabled system to charge from mains between 12:30 until 4:30. Fiddled with system and used it from November through to February. Returned to solar power only for battery charging. on 26th Feb 2023
8th March 2023 Visit from John Popperwell to check the system for Efficient Homes. All satisfactory we talked about Electric car charging (they do installations) and recomended by passing the solar system completely for vehicle charge.
1st April 2024 First noticed battery not discharging correctly and the red Alarm LED on the Sofar inverter was lit up. Called Efficient homes (Jesse) who took some time to get back to me with the correct procedure as to how to reset the system. See instructions below. all sorted 8th April.
Reset system after Alarm LED lights
1. Switch off Circent breaker to Inverter. (Green indicates OFF)
2. Switch off batteres in order, Master 1st etc.
(Rear battery with extra connections is master )
3. Wait 1 minute
4. Switch on batteres in order, Master 1st etc.
5. Press + hold for 5seconds red SW button on master battery
6. Switch on circuit breaker. Check all three switches up.
All should reset now.