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3.1.3
Setting the main parameters
To change the configuration of the inputs/outputs, use the table below:
Type
Type of AHU
Configuration parameters for the
expansion board outputs
Configuration parameters for the
probes
Configuration parameters for the
digital inputs
Antifreeze
Code +050001260 – Rel. 2.0 – 22/01/08
Parameter
0 = 100% outside air
P124
1 = with recirculation
0= Output disabled
1= ON/OFF cold water valve (norm. open)
2= ON/OFF hot water valve (norm. open)
3=Chiller activation signal, cold water request (norm. open). Contact closed with
cold/hot water valve or cold water valve only active (open with valve deactivated)
4= Boiler, heat pump activation signal, hot water request (normally open). Contact
closed with cold/hot water valve or hot water valve only active (open with valve
deactivated)
5= ON/OFF hot/cold water valve (normally open). Activated when cooling/heating
request by controller. Off when are both deactivated
6= ON/OFF heater (normally open) (set parameters P46 and P13)
7= Alarm (normally open)
8= DO NOT SELECT
9= 3-point valve + (clockwise) for cold water (hot/cold water if dip4=OFF)*
10= 3-point valve - (anticlockwise) for cold water (hot/cold water if dip4=OFF)*
11= 3-point valve + (clockwise) for hot water (deactivated if dip4=OFF) *
P39,40,41,42
12= 3-point valve - (anticlockwise) for hot water (deactivated if dip4=OFF) *
13= Valve with 0 to 10 Vdc input for cold water (hot/cold water if dip4=OFF) *
14= Valve with 0 to 10 Vdc input for hot water (deactivated if dip4 =OFF) *
15= DO NOT SELECT
16= DO NOT SELECT
17= 0 to 10 Vdc output for modulating heater control (by external module). Set
parameters P111, P117. *
18= Output (triac or relay) for ON/OFF heater management (with hysteresis) on
P+I. Set parameters P111, P112. *
19= Open 3 point outside damper *
20= Close 3 point outside damper *
21= 0 to 10 Vdc outside damper
22= 0 to 10 Vdc recirculation damper ¦23= ON/OFF outside damper
24= Recovery unit ON/OFF bypass damper
(*) The P+I parameters need to be set
0=With dip_switch6=ON, control probe is probe on "acqua" terminal
1=Probe disabled
2=Heating/cooling coil probe
3=Cooling coil probe
P15,16,17
4=Heating coil probe
5=With dip_switch6=OFF, control probe is probe B1 (or B2,B3) (intake)
6=Outside probe
7=Outlet probe
0= input disabled
1=economy (norm. open) changes the set point (cooling= increases, heating =
decreases)
2= window alarm (norm. open) stops the fan and closes the valve
3= DO NOT SELECT
4= DO NOT SELECT
5= local stop (generic alarm, norm. open) stops the fan and closes the valve
6= economy (norm. closed)
P43,44,45
7= window alarm (norm. closed)
8= DO NOT SELECT
9= DO NOT SELECT
10= local stop (generic alarm, norm. closed) stops the fan and closes the valve
11= enable antifreeze by time (normally open)
12= enable antifreeze by time (normally closed)
13= dirty filter alarm from differential pressure switch (normally open)
14= dirty filter alarm from differential pressure switch (normally closed
0 = disabled
P120
1 = enable from probe
2 = enable from digital input
18
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