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Digital inputs

In document Disposal of the product (сторінка 30-33)

4. ADVANCED SETTINGS 29

4.1.3 Digital inputs

Digital inputs DI1 and DI2 have a fi xed confi guration, while the remaining inputs can be confi gured by parameter. The off status of the digital input has priority over the signals received via the serial communi- cation, so as to allow the user (directly affected by the fl ow of cold or hot air) to switch the fan coil units off.

input description related parameters notes

DI1 ON/OFF input when the input is closed the unit is off (even in the event of network connection). In the transition from OFF->ON the e-drofan is started, but may subsequently be switched off from the terminal or via serial connection. In the off status, the valve is closed and the fan is stopped (after any post-ventilation phase required for the heater).

DI2 cooling/heating Enabled when DIP2= ON

DI3 multifunction P43

DI4 multifunction P44

DI5 multifunction P45

Table 4.b.a

par def setting function

P43 0 0= input disabled

1= economy (normally open) 2= window alarm (normally open) 3= occupancy (normally open)

4= circulating pump alarm (normally open) 5= local stop (generic alarm, normally open) 6= economy (normally closed)

7= window alarm (normally closed) 8= occupancy (normally closed)

9= circulating pump alarm (normally closed) 10= local stop (normally closed)

vary the set point (cooling= increase, heating= decrease) stop fan and close the valve

keep the fan coil ON for half an hour stop fan and close the valve stop fan and close the valve

P44 0 see P43 -

P45 0 see P43 -

Table 4.b.c The management of the occupancy input is described in the paragraph on the occupancy function.

The Economy function is the same as the sleep function, with the difference that it is activated/deactiva- ted by digital input.

ENGL ISH constructor

4.1.4 Outputs

output description related parameters note

No1 Voltage output (L) for minimum fan speed winding. - -

No2 Voltage output (L) for medium fan speed winding - -

No3 Voltage output (L) for maximum fan speed winding. - -

No4 Multifunction voltage (see DIP4) P39 e-drofan expansion

No5 Multifunction voltage (see DIP4 and DIP5) P40 e-drofan expansion

No6 Multifunction voltage P41 e-drofan expansion

No7 Multifunction voltage P42 e-drofan expansion

Table 4.c.a par. def. setting

P39 5 When P95=0 the output is set by dipswitch (with dip 4 OFF the parameter is forced to 5, dip 4 ON the parameter is forced to 1). If P95=1 the output is settable by P39, the traditional heater can only be used when dipswitch= 1

0= Output disabled;

1= Cold water valve (normally open);

2= Hot water valve (normally open);

3= Chiller trigger, cold water request (normally open). Contact closed with cold/hot water valve or cold water only active (open with valve deactivated);

4= Boiler trigger, hot water request (normally open). Contact closed with cold/hot water or hot water valve only active (open with valve deactivated);

5= Cold/hot water valve (normally open). Activated with the cooling/heating request from the controller. Off when both are deactivated;

6= Heater (normally open) (set parameters P46 and P13);

7= Alarm (normally open);

8= Circulating pump (normally open). Activated when one of two valves, hot or cold water, opens. Off when are both deactivated.

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). * 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= Reserved for future use

16= Reserved for future use

17= Output 0 to 10 Vdc for modulating heater control (by external module). Set parameters P111, P116. * 18= Output (triac or relay) for ON/OFF heater management (with hysteresis) on P+I. Set parameters P111, P112. *

P40 0 If P95=0 the output is set by dipswitch (if dip 4 is OFF the parameter is set to 0, dip 4 ON the parameter is set to 2). When dip 4 is OFF and dip 5 is ON the parameter is set to 6, that is, heater output. If P95=1 the output can be set by P40, in any case the heater cannot be used when dip4= ON. For the other settings see P39

P41 3 Vedere P39

P42 4 Vedere P39

P95 0 0=outputs No4 and No5 set by dipswitch 4

1=outputs No4 and No5 can be set by parameter P39 and P40 (settare a 1 per abilitare le uscite modulanti, algoritmo P+I)

Table 4.c.b

* The P+I parameters need to be set, see chap. 4.2.10.

summary table of the e-drofan options

4 relay exp. HYVC000R0* 4 relay exp. HYVC000T0* 0 to 10 Vdc exp.

HYVC000V0*

Triac/relay exp.

HYVC000M0*

No4 (rel.

volt) No5 (rel.

volt) No6 (rel)

No7 (rel)

No4 (triac volt)

No5 (triac volt)

No6 (triac volt)

No7 (triac volt)

No4 (0 to 10 V)

No5 (0 to 10 V)

No6 (rel)

No7 (rel)

No4 (triac volt)

No5 (triac volt)

No6 (rel 10

A) No7 (rel)

Set P39, P40, P41, P42 P39 P40 P41 P42 P39 P40 P41 P42 P39 P40 P41 P42 P39 P40 P41 P42

With P95=0 the output is set by dipswitch (with dip 4 OFF the parameter is forced to 5, dip 4 ON the parameter is forced to 1). If P95=1 the output is settable using P39

0= Output disabled

1= Cold water valve (normally open) √ √ √ √ √ √ √ √ √ √ √ √ √ √

2= Hot water valve (normally open) √ √ √ √ √ √ √ √ √ √ √ √ √ √

3= Chiller activation signal, cold water request (normally open).

Contact closed with cold/hot water valve or cold water only active (open with valve deactivated)

√ √ √ √ √ √ √ √ √ √ √ √ √ √

4= Boiler activation signal, hot water request (normally open).

Contact closed with cold/hot water valve or hot water only (open with valve deactivated)

√ √ √ √ √ √ √ √ √ √ √ √ √ √

5= Cold/hot water valve (normally open). Activated with the cold or hot water request from the controller. Off when are both deactivated

√ √ √ √ √ √ √ √ √ √ √ √ √ √

6= Heater (normally open); Select e-drofan option based on the current request on the relay: 2 Aac or 10 Aac

√ √ √ √ √ √ √ √ √ √ √ √ √ √

7= Alarm (normally open) √ √ √ √ √ √ √ √ √ √ √ √ √ √

8= Circulating pump (normally open). Activated when either the hot or cold water valve opens. Off when are both deacti- vated

√ √ √ √ √ √ √ √ √ √ √ √ √ √

9= 3-point valve + (clockwise) for cold water (hot/cold water if dip4=OFF). Use e-drofan 4 triac or triac/relay (triac outputs only) option*

√ √ √ √ √ √

10= 3-point valve - (anticlockwise) for cold valve (hot/cold water if dip4=OFF). Use e-drofan 4 triac or triac/relay (triac outputs only) option*

√ √ √ √ √ √

11= 3-point valve + (clockwise) for hot water (deactivated if √ √ √ √ √ √

ENGL ISH constructor

Below is a possible example for 0/10V modulating actuators on 4 pipe fan coils with heating/cooling request:

Analogue output option HYVC000V**:

output No4: P39= 13 modulating 0 to 10 V cold water valve output;

output No5: P40= 14 modulating 0 to 10 V hot water valve output;

output No6: P41= 3 cooling request;

output No7: P42= 4 heating request.

Do not set modulating and non-modulating outputs at the same time (e.g. P39=1, P40=16 or P39=6 and P40=17 etc.), as with modulating actuators control is P+I (when suitably confi gured); in any case, the following outputs can still be used: chiller activation signal, boiler activation signal and alarm. Only one output can be set as a heater.

4.1.5 Dipswitches and type of installation

main coil secondary coil dipswitches

2 pipe (active probe: B2) Functions available: cooling / heating (local hot/cold water valve) DIP4= OFF

DIP1= ON 4 pipe (active probes: B2,B3) Functions available: cooling (cold water valve) Functions available: heating (hot water valve) DIP4= ON DIP1= ON

Tab. 4.d In the case of 4 pipe installations, the main and secondary coil valves are never open at the same time, and the heater is disabled.

par unit of measure

def min max setting

P12 °C 37 0 255 Temperature to enable the fan in heating, automatic heating

P13 °C/10 10 0 255 Hysteresis to enable the fan in heating/automatic heating, cooling, automatic cooling

P14 °C 21 0 255 Temperature to enable the fan in cooling/automatic cooling

P51 min 0 0 255 Local valve, hot/cold water valve opening time P52 min 0 0 255 Local valve, hot/cold water valve closing time

Table 4.8 In case of installations where the fan coils are used in stand-alone mode, the controller cannot know in advance the value of the temperature of the water contained in the loop, the probes being in the coil therefore afterwards the valves. After a series of attempts at fi xed time intervals, it is possible to detect the temperature through the parameter P51 setting, minimum opening time, and P52, preset waiting time.

A series of attempts are performed to activate the hot/cold water valve until the exchanger reaches the temperature required to activate the fan (cool/heat enable), in which case the cycle of attempts is reset.

The hot/cold water valve is activated for the time equal to P51 and remains off respectively for the time P52 after the fi rst attempt, for P52-5 minutes after the second attempt, for P52-10 minutes after the third attempt, off for P52 x 2 after the fourth attempt; following the four attempts the cycle restarts from point 2 (valve OFF for P52 - 5 minutes).

4.1.6 Method for testing the installation

See section “installer”.

13= Valve with 0 to 10 Vdc input for cold water (hot/cold water if dip4=OFF). Use e-drofan 0 to 10 V/relay option*

√ √

14= Valve with 0 to 10 Vdc input for hot water (deactivated if dip4 =OFF). Use e-drofan 0 to 10V/relay option*

√ √

15= Reserved for future use 16= Reserved for future use

17= 0 to 10 Vdc output for control of modulating heaters (by external module). Set parameters P111, P116*

√ √

18= Output (triac or relay) for management of ON/OFF heaters (with hysteresis) on P+I. Set parameters P111, P112*

√ √ √ √ √ √ √ √ √ √ √ √ √ √

P13 OFF min.

medium

max. P10 P11 P12

P13

P13 1

2 Fig. 4.c

P13 OFF

ON P14

1

2 Fig. 4.d

ENGL ISH constructor

In document Disposal of the product (сторінка 30-33)