93/160
AB Industrietechnik srl – Via Julius Durst, 70 – 39042 BRESSANONE (BZ) Italy – Tel: +39 0472/830626 – [email protected] – www.industrietechnik.it
100%
0%
Treg
122
WHS
122
/2
100%
0%
Treg
122
WCS
122
/2
Treg
178
100%
0%
100%
0%
Treg
122
WCS
122
/2
178
Treg
178
100%
0%
Bypass
100%
0%
Treg
WCS
178
Treg
178
100%
0%
Bypass
P
Treg
178
100%
0%
100%
0%
Treg
122
WHS
122
/2
178
100%
0%
Treg
178
Bypass
100%
0%
Treg
WHS
178
100%
0%
Treg
178
Bypass
P
P
P
Treg: control temperature
WHS: heating operation setpoint
122
: hysteresis for on/off output
178
:
hysteresis regulation free heating/cooling
solid curve upper part: pump of double coil heat exchanger output
dashed curve: on/off heating valve output
Bypass: bypass damper for heat exchanger output
With heating recovery conditions:
If temperature of regulation sensor drops below WHS, icon
is switched on, the pump is activated and the on/off bypass
damper is deactivated.
The heating valve is activated if Treg < (WHS -
122
) and deactivated if Treg >= (WHS -
122
/2).
The pump is deactivated and bypass activated if Treg >= (WHS +
178
). The icon is switched off.
Operation with on/off bypass heat exchanger without heating valve:
Do following settings:
- set type of heat exchanger
012
=2
,
- select a digital output for the pump
025
=14 (DO1) or
026
=14 (DO2) or
027
=14 (DO3) or
028
=14 (DO4) or
029
=14 (DO5)
- do the regulation on room sensor (internal or remote sensor)
001
=0;
- define the return air sensor
019
=1 (AI1) or
021
=1 (AI2) or
023
=1 (AI3)
-
define external sensor
019
=3 (AI1) or
021
=3 (AI2) or
023
=3 (AI3).
If return sensor or external sensor is broken (open or short-circuit), heat exchanger is deactivated.
- On/off bypass damper for heat exchanger
010
=2,
011
=1,
025
=13 (DO1) or
026
=13 (DO2) or
027
=13 (DO3) or
028
=13 (DO4)
or
029
=13 (DO5)
100%
0%
Treg
114
WHS
114
/2
100%
0%
Treg
116
WCS
116
/2
Treg
178
100%
0%
100%
0%
Treg
WCS
178
Treg
178
100%
0%
100%
0%
Treg
116
WCS
116
/2
178
Treg
178
100%
0%
P
Bypass
100%
0%
Treg
WCS
178
Treg
178
100%
0%
Bypass
P
Treg
178
100%
0%
100%
0%
Treg
WHS
Treg
178
100%
0%
178
100%
0%
Treg
114
WHS
114
/2
178
100%
0%
Treg
178
Bypass
100%
0%
Treg
WHS
178
100%
0%
Treg
178
Bypass
P
P
Bypass
Bypass
P
P
Treg: control temperature
WHS: heating operation setpoint
178
:
hysteresis regulation free heating/cooling
P: pump of double coil heat exchanger output
Bypass: bypass damper for heat exchanger output
With heating recovery conditions:
If temperature of regulation sensor drops below WHS, icon
is switched on, the pump is activated and the on/off bypass
damper is deactivated. The pump is deactivated and bypass activated if Treg >= (WHS +
178
). The icon is switched off.