SR1128 operation manual
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6.2 Manual heating
Description:
Electrical heater, gas or oil boiler can be as back-up devices in a solar system, this
controller can achieve constant temperature controlling, when temperature of top part tank
(T3) is 3
o
C below the preset switch-on temperature, back-up heating will be triggered.
When the temperature on the top part tank (T3) rises up to the preset temperature, then
heating is ceased.
Conditions for triggering manual heating function: the preset switch-on temperature of
this function should be 3
o
C higher than tank temperature.
Activate/deactivate the function:
►Press “Heating” button, temperature “60
o
C” blinks on the screen.
►Press “+” “-” button to adjust switch-on temperature, adjustable range 10
o
C80
o
C,
factory set is 60
o
C.
After 20 seconds, this function is activated, signal displays on the screen, and heating
signal blinks also.
►Press “Heating” button again, to switch-off manual heating function.
Note: manual heating can only heat tank one time, after manual heating is triggered, when
temperature of tank rises up to the preset temperature, manual heating ceases, and manual
heating function will be deactivated automatically, if customer wants to heat again, you need
redo according to above steps.
6.3 Temperature query function
Under standby status,
►Press “+” “-” button , you can check the value of temperature sensors T1~ T4, pump
speed (n%), accumulative operation time of circuit pump (Hp), daily thermal energy (DKWH),
accumulative thermal energy (KWH) or (MWH), time and date.
When checking temperature, T1 – T4 displays one by one, corresponding sensor signal
blinks. TST means the temperature of tank 1.
►Press “ESC” button, TST: tank temperature displays.
Note:
z Value of accumulative operation time of circuit pump (hp), Daily thermal energy (DKWH)
and accumulative thermal energy (KWH) or (MWH) can only be checked after
triggering of OHQM thermal energy measuring function.
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