automix Termomat 1 Installation Und Betriebsanleitung Seite 18

english
1. The start of pump P1 is adjustable with knob B from 40°C to 80°C.
TERMOMAT 12: Recommended setting is 60°C.
TERMOMAT 15: Recommended setting is 80°C.
Pump P1 starts at the selected setting. TERMOVAR-valve opens at 72°C and the charging starts. The charg-
ing stops when the boiler temperature drops below 72°C. Pump P1 stops when the boiler temperature drops
1°C below the selected setting or when the storage tank temperature Ta is 1,5°C higher than the boiler
temperature Tk.
2. The heat-collecting from the storage tank back to the boiler starts when the boiler temperature Tk is from 4°C
to 8°C lower, depending on selected program, than the storage tank temperature Ta. The heat-collecting stops
when Tk is 2°C or 3°C lower than Ta. See program table below. The value H (Pump P2 on) is selected
with knob E (page 5). Factory setting is 4H 2L.
3. Pump P2 stops when the temperature difference L between boiler and tank is 2 or 3°C depending on
selected program.
4. When the storage tank temperature Ta has dropped to 45°C the display alternately shows LO, meaning low
temperature and the current tank temperature. The charging from tank to boiler continues as long as there is
warmer water in tank than in boiler.
5. Charging with additional heat, NO: The starting temperature for additional heat is dependent on the
boiler temperature T-k which is selected with knob B according to table 1.
With a selected boiler temperature of for example 60°C the additional heat is on at 43°C and off at 57°C.
Charging with additional heat, YES: The starting temperature for additional heat is dependent on boiler
temperature T-k which is selected with knob B according to table 1. The charging continues either until the
thermostat of the additional heat stops the charging or until the boiler temperature has reached the upper
graphs of the selected program.
When boiler temperature Tk is below graph EH-ON the additional heat starts. At this moment pumps P1 and
P2 are shut off. The blue LED C is on and the display flashes Tk and EH (extra heat).
The charging to the tank does not start until the boiler temperature has reached the selected temperature.
If the boiler temperature should not reach the selected setting because no additional heat is connected or
does not work and the temperature difference between the boiler and tank is higher than the selected value H,
the normal charging goes on. The charging continues until the temperature difference in below H. Thus all
energy is taken from tank to boiler.
6. Table 1: Additional heat on EH-ON and off EH-OFF according to the graphs
C°
85
80
75
70
65
60
55
50
45
40
35
30
40 45 50 55 60 65 70
Selected boiler temperature T_k
3 (6)
Charging with extra heat "YES"
Program A
Charging with extra heat "YES"
Program B and C
Charging with extra heat "NO"
75 80 C°
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TM1-G3 2009.06