11
E 136 - XTA 624 C1 Eng.
22.11.10 AM REV. 02
We reserve the right to make changes without notice
COSTER
18. OUTPUT Y1, Y2
Outputs Y1 and Y2 can be configured as:
• Y.. - MODULATING = modulating control for 3-wire valves or 3-
wire signal converters into 0...10 V- or step
controllers.
2 STAGE = 2-stage On-Off control (1 ; 1+2) for solenoid
valves, pumps, humidifiers, burners, refri
-
gerators, 2 equal-load electric batteries,
etc.
3 STAGE = 2-stage On-Off control (1 ; 2; 1+2) for 2
unequal-load electric batteries.
• Stroke time : xxx s = valve actuator stroke time. It only appears if control is MODULATING.
Each output can be assigned a different action (load). E.g.: Y1: Heating.
If Season Switching is enabled in M2
.2, a different action can be assigned for each season.
E.g.: Y1 – Win: Heating; Y1 – Sum: Cooling.
• Y1 - .....: PREHEAT = Preheating (only if B4 is configured)
HEATING = Heating
COOLING = Cooling
OFF = Not used in current season
• Y2 - .....: PREHEAT = Preheating (only if B4 is configured)
HEATING = Heating
COOLING = Cooling
OFF = Not used in current season
Y .. - M O D U L AT I N G
R u n T i m e : 1 2 0 s
M3.3.5
Y 1 : H E A T I N G
M3.4
Y 1 - W i n : H E A T I N G
Y 1 - S u m : H E A T I N G
Y 2 : C O O L I N G
M3.6
Y 2 - W i n : C O O L I N G
Y 2 - S u m : C O O L I N G
17. PREHEATING TEMPERATURE CONTROL
The function is only enabled if detector B4 is connected. It can be used for the following purpo-
ses:
The controller compares preheating temp.
T°pre with the temp. measured
by detector B4, and calculates the load value for Preheating Qpre according
to deviation detected.
S e a s o n S w i t c h i n g
– – – 4 –
M3.1
P r e h e a t i n g T .
D e s i r . : 1 8 . 0 c
M0.7
16.2 Summer compensation of desired room Cooling temperature
This function can only be used if detectors B2 and B3 or B1, B2 and B3 are connected. It is useful
to prevent excessive temp. differences between room and outside.
The controller maintains temp. at a constant level
until outside temp. exceeds the value T°Coo +
∆t°; when this occurs
T°Coo is increased by 1°C per each °C increase in outside temp.
• Summer Comp. : NO = function disabled
YES = function enabled
• Diff. T - R. T : xx c = maximum allowed difference between
outside and room temp.
C o o l T . R o o m
D e s i r . : 2 5 . 0 c ± 0 . 0
M0.5
S u m m e r C o m p e n : N O
D i f f . T - R . T : 6 c
M2.8
S e a s o n S w i t c h i n g
1 2 3 – – –
M3.1
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