99/160
AB Industrietechnik srl – Via Julius Durst, 70 – 39042 BRESSANONE (BZ) Italy – Tel: +39 0472/830626 – [email protected] – www.industrietechnik.it
tion (parameter
164
) in the band defined by
114
/2. The heating valve goes from closed position to open position when Treg
changes from (WHS -
114
/2) to (WHS -
114
).
The rotary on/off heat exchanger is deactivated if Treg >= (WHS +
178
). The icon is switched off.
Operation with modulating bypass heat exchanger and on/off heating valve:
Do following settings:
- set type of heat exchanger
012
=3
,
- select a digital output for the rotary on/off heat exchanger
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.
- Modulating bypass damper for heat exchanger
010
=4,
011
=1,
030
=13 (AO1) or
031
=13 (AO2) or
032
=13 (AO3),
- heating valve on/off
002
=4 and
025
=4 (DO1) or
026
=4 (DO2) or
027
=4 (DO3) or
028
=4 (DO4) or
029
=4 (DO5)
or electrical resistance on/off
002
=3 and
025
=7 (DO1) or
026
=7 (DO2) or
027
=7 (DO3) or
028
=7 (DO4) or
029
=7 (DO5)
or on/off mixed-use valve in heating
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
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: modulating bypass damper for heat exchanger output
dashed curve: on/off heating valve output
P: rotary on/off heat exchanger output
With heating recovery conditions:
If temperature of regulation sensor drops below WHS, icon
is switched on, the rotary on/off heat exchanger is activated and
the modulating bypass damper goes from the maximum opening position (parameter
165
) to the minimum opening position
(parameter
164
) in the band defined by
122
/2. The heating valve is activated when Treg < (WHS -
122
) and deactivated when
Treg >= (WHS -
122
/2).
The rotary on/off heat exchanger is deactivated if Treg >= (WHS +
178
). The icon is switched off.
Operation with modulating bypass heat exchanger without heating valve:
Do following settings:
- set type of heat exchanger
012
=3
,
- select a digital output for the rotary on/off heat exchanger
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.
- Modulating bypass damper for heat exchanger
010
=4,
011
=1,
030
=13 (AO1) or
031
=13 (AO2) or
032
=13 (AO3),
