Solar Controller SRK868V6 Installation and Operation Instructions
http://www.keracontrols.com
9
3.3 Manual operation
When powering up the controller for the first time, or during testing, the outputs of the controller may be operated manually
as follows:
•
Manual operation of the Solar Panel Pump (P1)
►
Press the “
Manual
▲
T
” button. The solar circulation pump (P1) will be switched ON. The display will indicate this status.
►
Press the “
Manual
▲
T
” button again. The solar circulation pump (P1) will be switched OFF or the program will
deactivate it after 10 minutes automatically.
•
Manual operation of the Hot Water circulating pump (P2)
►
While the Supply Power is on, press the “
ON/OFF
” button to activate the hot water pipe circulation pump (P2). The
display will indicate this status.
►
Press the “
ON/OFF
” button again to shut-off this pump or the program will deactivate it after 3 minutes automatically.
•
Manual operation of the Heating booster (H1)
►
Press and hold the “
Heating
” button for 6 seconds. The booster heating output (H1) will be switched ON.
►
Press the “
Heating
” button again to turn OFF this output immediately.
3.4 Temperature display
►
Press the “
Temp. Display
” button repeatedly to review the current temperature readings for: the collector (T1), tank
bottom (T2), tank top (T3) and the hot water pipe circulation sensor (T4).
The temperature of the tank bottom sensor (T3) is displayed automatically when no operation is performed for at least 6
seconds.
3.5 System configuration examples
3.5.1 Configuration A: 1
Collector array + 1 Storage tank + 1 Pump ( with
1 Sensor
in the water tank )
Description:
The solar pump (P1) is turned ON when the switch-ON
temperature difference between the collector array (T1)
and the storage tank (T2) is reached. When the
temperature difference between the collector array (T1)
and the storage tank (T2) drops below the switch-OFF
temperature difference, the solar pump (P1) is turned
OFF.
T1: Temperature sensor in the solar collector
T2: Temperature sensor in the bottom part of tank (for
solar circulation and optional heating booster control ).
P1: Solar circulating pump
P2: ( Optional ) User hot water circulating pump
Notes:
H1: Terminals for connecting to the optional tank heating
booster.
T4: Optional temperature sensor of the user hot water.
