Carel MasterAria, Руководство пользователя

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20
ENG
MasterAria +030220481 - rel. 1.0 - 12.11.2007
Automatic confi guration of the inputs/outputs and type
of unit (parameter 91)
To simplify confi guration, one of the three automatic confi gurations can
be used (columns “Def1, 2, 3” in the table of parameters):
Switch the device off by pressing the ON/OFF button;
•
Set parameter 91 according to the values shown in the table below.
•
Inputs &
Outputs
P91=44
AHU 100%
outside air
0-10 V valves
P91=45
AHU with
recirculation
0-10 V valves
P91=46
AHU with
recirculation
3-point valves
M
ain boar
d
ID1 ON/OFF ON/OFF ON/OFF
ID2 Cooling/Heating Cooling/Heating Cooling/Heating
ID3 Serious alarm Serious alarm Serious alarm
ID4 Antifreeze alarm Antifreeze alarm Antifreeze alarm
ID5 Filter alarm Filter alarm Filter alarm
B1 Outlet temperature Outlet temperature Outlet temperature
B2
Heating coil
temperature Heating/cooling
coil temperature Heating coil
temperature
B3
Outside
temperature Outside
temperature Outside
temperature
NO1
Single-speed outlet
fan Single-speed outlet
fan Single-speed outlet
fan
NO2 Disabled Disabled Disabled
NO3 Disabled Disabled Disabled
Expansion boar
d
NO4 Cool valve
Heating / cooling
valve Open heating /
cooling valve
NO5 Heat valve Outside air damper
Close heating /
cooling valve
NO6 Outside damper Electric heater
Open outside air
damper
NO7 Disabled Bypass damper
Close outside air
damper
Tab. 4.c
Note:
• The confi gurations corresponding to P91 = 44 and P91 = 45
require the expansion board with two 0 to 10 Vdc outputs (standard in
the MasterAria electrical panel), while the confi guration corresponding
to P91 = 46 requires the expansion board with 4 triacs.
Check that the corresponding inputs and outputs are enabled by
•
dipswitch. For example, once having set P91=44, check that dipswitch
4=ON (see the previous paragraph).
Once parameter 91 has been set, the individual settings for the specifi c
•
application can be changed using the parameters corresponding to
the inputs/outputs (see the following paragraphs).
Identifying/setting the model of unit (parameter 124)
Once automatic confi guration has been completed, make sure that
MasterAria recognises the type of AHU being managed.
The main setting involves the type of AHU:
100% outside air;
•
recirculation.
•
This is set using parameter P124:
P124=0 AHU 100% outside air
Fig. 4.b.a
The AHU with 100% outside air has just one air inlet, that is, from the
outside, and the air in the environment is no recirculated. In this case, when
the antifreeze alarm is active the controller stops the fan and switches off
the optional electric heater.
P124=1 AHU with recirculation
Fig. 4.b.b
In this case, the AHU, as well as taking in air from the outside, recirculated
the air in the environment. The antifreeze function does not stop the fan
and, if an electric heater is fi tted, this is not switched off .
Important:
The incorrect confi guration of this parameter may cause damage
to the AHU!
Confi guration of an AHU with heating/cooling coil only
(dipswitch 4 = OFF)
- Confi guration with P91=45
MasterAria does not distinguish between coils for heating or cooling only
and mixed coils.
The distinction is made by the user, by setting the proportional bands
accordingly.
Par Description Def2
39 Confi guration of output NO4 13 = Valve with 0 to 10 Vdc input for
cold water (hot/cold water if dip4 =
OFF)
40 Confi guration of output NO5
(see P39) 21 = 0 to 10 Vdc outside damper
41 Confi guration of output NO6
(see P39) 18 = Output (triac or relay) for man. of
ON/OFF heaters (with hysteresis) on
P+I. Set parameters P111, P112.
42 Confi guration of output NO7
(see P39) 24 = ON/OFF recovery bypass damper
Tab. 4.d.a
If a modulating valve is used, operation is established by the parameters
relating to the proportional bands.
In any case, dipswitch 4 must be OFF.
Coil model Parameters
Heating/Cooling P115=xx / P116=xx
Heating only P115=0 / P116=xx
Cooling only P115=xx / P116=0
Tab. 4.d.b
Par Description Def1 Def2 Def3 Min Max UOM
115
Proportional band for
cooling valve
40 40 40 0 255 °C /10
116
Proportional band for
heating valve
40 40 40 0 255 °C /10