SERO BWA-SS-10 User Manual - page 14
14
Before the Degree Minute reach - 60 (adjustable) ,the compressor is off, but when the Degree Minute
reach - 60 (adjustable) ,the compressor automatic start, and the flow temperature will begin increase.
(Higher than desired temperature) when the actual water supply temperature reach / higher than the
desired temperature, the DM will be changed.
For example : the DM was cumulated to -160 in this time.
1 minutes later when the Feed water temperature higher than desired temperature for 1
ć.
10X1=10 , Degree Minute= -150;
Another 1 minutes later when the Feed water temperature higher than desired temperature for
2
ć. 10X1=10, Degree Minute= -140;
Another 1 minutes later when the Feed water temperature higher than desired temperature for
3
ć. 10X1=10, Degree Minute= -130;
Another 1 minutes later when the Feed water temperature higher than desired temperature for
4
ć. 10X1=10, Degree Minute= -120;
……………………
Compressor off when Degree Minute reach 0 (adjustable) .
The relationship between compressor (on and off) and DM,the relationship between heater(on and off)
and DM.
The above chart is describing that running of compressor and electrical heater depend on Integral
Compressor ‘s Degree Minute are :-60 (on) and 0(off),A0=-60 (on)
Heater 1’s Degree Minute are : ‘-500’(on) and ‘-60’(off), A0+A2=-60-440=-500 (on)
Heater 2’s Degree Minute are : ‘-500’(on) and ‘-500’(off)
Heater 3’s Degree Minute are : ‘-600’(on) and ‘-550’(off)