Kera SRK868V6, Installation And Operation Instructions Manual

Page: 11 / 17

Solar Controller SRK868V6 Installation and Operation Instructions
http://www.keracontrols.com
11
3.7 Programmable, Temperature controlled Heating Booster for UP TO 3 periods per day
The solar controller can be combined with an optional heating booster that can automatically control the tank water
temperature during the time periods for heating. During these ( up to ) 3 programmed periods of the day the heating booster
output (H1) is activated when the temperature (T3), usually located at the top part of the tank, is 6
o
C (11F) below the
programmed switch-OFF temperature. When T3 exceeds or equals the preset temperature, this output is turned OFF.
Setup steps:
► Press the “ Heating ” button. The time will flash.
► Press “ ▲ ” “ ▼ ” button to set the ON hours
► Press“ ← ”
、
“ → ” button to shift to the ON minutes
► Press “ ▲ ” “ ▼ ” to set the minutes
► Press “ ← ”
、
“ → ” again to shift to the OFF temperature preset
► Press “ ▲ ” “ ▼ ” to set the OFF temperature value
► Press “ Heating ” button again to set the OFF time
► Press “ ▲ ” “ ▼ ” button to set the OFF hours
► Press“ ← ” 、 “ → ” button to shift to the OFF minutes
► Press “ ▲ ” “ ▼ ” to set the minutes
•
After 6 seconds, the controller will lock-in the settings.
•
Repeat the above steps three times for the 3 different periods per day. The number (1-3) on the display will indicate the
time period being preset.
•
Default settings:
- 1-st heating period: From 4:00 AM (ON) till 5:00 AM (OFF)
- 2-nd heating period: the booster is deactivated. The settings are 10:00 AM (ON) till 10:00 AM (OFF)
- 3-rd heating period: 5:00 PM (ON) till 10:00 PM (OFF)
NOTE: The Default OFF temperature for the booster is 55
o
C (131F).
NOTES:
•
To turn OFF the heating booster for one of the 3 periods, set the ON (start) time and the OFF (stop) time to the same
time.
•
Pressing the “Heating” button will display the programmed settings.
MANUAL operation:
To turn ON the booster heating (H1) manually, press the “ HEATING ” button 3 times while the temperature T3 is lower than
+50
o
C (+131F).
To turn OFF the heating manually, press the button again once.
The booster heating control output will be automatically switched OFF when the temperature (T3) r55
o
C (+131F).
Note: The heating booster output (H1) is active when this symbol is shown on the display.