103/160
AB Industrietechnik srl – Via Julius Durst, 70 – 39042 BRESSANONE (BZ) Italy – Tel: +39 0472/830626 – [email protected] – www.industrietechnik.it
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%
Treg
178
100%
0%
100%
0%
Treg
WHS
Treg
178
100%
0%
178
Bypass
Bypass
Bypass
100%
0%
Treg
122
WCS
122
/2
Treg
178
100%
0%
Bypass
100%
0%
Treg
122
WHS
122
/2
Treg
178
100%
0%
E
E
Bypass
Bypass
Treg: control temperature
WCS: cooling operation setpoint
116
: cooling proportional band
178
:
hysteresis regulation free heating/cooling
solid curve upper part: modulating rotary heat exchanger output
dashed curve: modulating cooling valve output
Bypass: on/off bypass damper output with
183
=0 (with
183
≠
0
, the bypass is always OFF)
With cooling recovery conditions:
If temperature of regulation sensor rises above WCS, the on/off bypass damper is deactivated (with
183
=0), icon is
switched on, the modulating rotary heat exchanger changes speed from the minimum to maximum when Treg changes from
WCS to (WCS +
116
/2). The cooling valve goes from closed position to open position when Treg changes from (WCS +
116
/2)
to (WCS +
116
).
The modulating rotary heat exchanger reaches its minimum speed if Treg <= WCS:
if minimum speed is different from 0 (
183
≠
0
), icon
is switched off and the bypass remains OFF.
if minimum speed is equal to 0 (
183
=0
), and if Treg <= (WCS -
178
) the on/off bypass damper is activated and icon
is
switched off.
Operation with on/off bypass heat exchanger and cooling on/off valve:
Do following settings:
- set type of heat exchanger
012
=4
,
- select an analogue output for the modulating rotary heat exchanger
030
=12 (AO1) o
031
=12 (AO2) o
032
=12 (AO3),
- 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),
- on/off cooling valve
003
=2 and
025
=5 (DO1) or
026
=5 (DO2) or
027
=5 (DO3) or
028
=5 (DO4) or
029
=5 (DO5),
or on/off mixed-use valve in cooling
002
=4,
003
=2 and
025
=6 (DO1) or
026
=6 (DO2) or
027
=6 (DO3) or
028
=6 (DO4) or
029
=6
(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%
Treg
178
100%
0%
100%
0%
Treg
WHS
Treg
178
100%
0%
178
Bypass
Bypass
Bypass
100%
0%
Treg
122
WCS
122
/2
Treg
178
100%
0%
Bypass
100%
0%
Treg
122
WHS
122
/2
Treg
178
100%
0%
E
E
Bypass
Bypass
Treg: control temperature
WCS: cooling operation setpoint
122
: hysteresis for on/off output
