Elko EP TER-9 Manual Del Usario página 12

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Thermostat functions
1. 2 independent single-stage thermostat
Heater function
T1
Ts1
dy1
dy2
15-18
T2
Heater function
Ts2
dy1
dy2
25-28
2. Dependent functions of 2 thermostats
Ts2
T2
dy1
dy2
dy1
25-28
Ts1
T1
dy1 dy2
dy1
15-18
dy1 dy2
dy1 dy2
15-18
3. Diff erential thermostat
Ts1
D-H1
D
Ts2
D
15-18
dy1
dy2
25-28
4. 2-stage thermostat
T1
Ts
D
T
dy1
dy2
dy1
15-18
dy1dy2
25-28
5. Thermostat with "WINDOW"
Ts
T1
D
T2
T
dy1
dy2
dy1
dy2
15-18
dy2
dy2
dy1
dy1
25-28
6. Thermostat with dead zone
T1
Ts
D
T
T2
dy2
dy1
15-18
dy1
dy2
25-28
Legend:
H1
Ts1 - real (measured) temperature 1
H1
Ts2 - real (measured) temperature 2
T1 - adjusted temperature T1
dy2
dy1
T2 - adjusted temperature T2
H1 - adjusted hysteresis for T1
H2 - adjusted hysteresis for T2
H2
dy1 - set switching delay of the output
H2
dy2 - set delay on output breaking
15-18 output contact (for T1)
dy1
dy2
25-28 output contact (for T2)
Legend:
H2
Ts1 - real (measured) temperature 1
H2
Ts2 - real (measured) temperature 2
H2
dy2
T1 - adjusted temperature T1
T2 - adjusted temperature T2
H1
H1 - adjusted hysteresis for T1
H1
H2 - adjusted hysteresis for T2
H1
dy1- set switching delay of the output
dy2
dy1
dy2 - set delay on output breaking
25-28 output contact (for T2)
15-18 output contact (intersection T1 and T2)
Legend:
Ts1 - real (measured) temperature T1
D
D-H2
Ts2 - real (measured) temperature T2
D - adjusted diff erence
dy1- set switching delay of the output
dy2 - set delay on output breaking
dy1
dy2
15-18 output contact (for T1)
25-28 output contact (for T2)
dy1
Legend:
H1
Ts - real (measured) temperature T1
H1
H1
D - adjusted diff erence
T1 - adjusted temperature T1
H2
T=T1-D
H2
H1 - adjusted hysteresis for T1
H2
H2 - adjusted hysteresis for T
dy2
dy1
dy2
dy1- set switching delay of the output
dy2 - set delay on output breaking
dy1
15-18 output contact
25-28 output contact
Legend:
H1
Ts - real (measured) temperature
H1
H1
T1 - adjusted temperature
T=T1-D
H1 - adjusted hysteresis for T1
H2
H2 - adjusted hysteresis for T
H2
dy1- set switching delay of the output
H2
dy2 - set delay on output breaking
dy1
dy2
15-18 output contact
25-28 output contact
dy2
dy1
H1
Legend:
H1
Ts - real (measured) temperature
H1
T1 - adjusted temperature
T=T1-D
H2
H1 - adjusted hysteresis for T1
H2
H2 - adjusted hysteresis for T
H2
dy1- set switching delay of the output
dy2 - set delay on output breaking
15-18 output contact (heating)
25-28 output contact (cooling)
dy1
Output contact switched until adjusted temperature is reached.
Hysteresis eliminates frequent switching. Heating/cooling func-
tion adjusted in the menu.
Output 15-18 is closed, if temperature of both thermostats is bel-
low an adjusted level. When any thermostat reaches adjusted lev-
el, the contact 15-18 open. Serial inner connection of thermostats
(logic function AND).
Switching of output corresponds with input, which has lower
temperature when diff ference is exceeded diff erencial thermo-
stat is used for keeping two identical temperature e.g. in heating
systems (boiler and reservoir), solar systems (collector, reservoir
exchanger), water heating (water heater, water distribution)etc.
Typical example of use for two-stage thermostat is e.g in boiler-
room, where there are two biolers from which one is main and the
other one is auxiliary. The main boiler is managed according to set
temperature and auxiliary boiler is switched in case temperature
falls under set diff erence. Thus it helps to the main boiler in case
outside temperature dramatically falls. In the range of set diff er-
ence (D) output 15-18 functions as normal thermostat to input 1
(type 1). In case temperature falls under set diff erence, output 2
switches.
Output is closed (heating) only if temperature is within adjusted
range.If temperature is out of range, the contact opens. T is set as
T1-D. The function is used for protection of gutters against freez-
ing.
In case of thermostat with a „dead zone", it is possible to set tem-
perature T1 and a diff erence (respectively a width of dead zone D).
If temperature is higher than T1, output contact of cooling switch-
es ON; if the temperature gets bellow T1, the contact switches
OFF. If the temperature gets bellow temperature T, the contact
of heating switches ON and it switches OFF when temperature T
is exceeded. This function can be used for example for automatic
air warming and cooling in ventilation so the sit is always within
the range T1 and T.
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