24
ENG
clima +030220641 - rel. 1.0 - 07.12.2007
5.8 (T+H radiant ON/OFF) ON/OFF mode for
radiant oor systems
ON/OFF control mode in radiant systems is available for all models of
clima (ADCA*, ADCD*, ADCF*), both with temperature control only and
temperature plus humidity (modes T or T + H), and is likewise available for
the speci c model for radiant systems, ADCF000610.
Temperature control uses one relay only:
R1 for models ADCA000210, ADCA000410 and all models ADCF*;
•
R2 for models ADCA000100, ADCA000110 and all models ADCD*;•
The second relay (R2), if available, is associated with humidity control, as
is the analogue output.
Dipswitch con guration:
dip1: OFF
dip2: OFF
dip3: OFF
The remote sensor is used to control the water outlet temperature, and
this must be installed, otherwise an error is signalled.
For control two parameters are used that de ne two thresholds for the
water temperature:
maximum temperature, in heating mode (EHi);
•
minimum temperature, in cooling mode (ELo).•
To protect the system against critical operating conditions, if such limits
are exceeded, an alarm is signalled, EHi (high temperature) or ELo (low
temperature) and the actuator is deactivated (relay).
For the control mode, see the modes T and T+H, the speci c additional
parameters are as follows:
DIP 4 = ON DIP 4 = OFF
dFHdFH
dSA
% U.R % U.RdFd
dS1 dS1
Temp. Temp.
Output Output
Output Output
Set point invernale Set point estivo
Set point umidifica Set point deumidifica
dIF dIF
R1 R1
R2R2
Fig. 5.o
Temperature (top) and humidty control mode (bottom) when LE=2.
Parameters involved:
Code Description Default LE
Value or
link if LE
= 1
day set point in cooling 24.0 °C 1 -
night set point in cooling 26.0 °C 1 -
day set point in heating 20.0 °C 1 -
night set point in heating 18.0 °C 1 -
dIF relay di erential 1.0 °C 1 -
dS1 relay o set 0.0 °C 2 = 0
dSA analogue output o set 0.0 % rH 2 =0
ELo max. water temp. in heating 40.0 °C 1 -
EHi max. water temp. in cooling 10.0 °C 1 -
humidi cation set point 50.0 % rH 1 -
dehumidi cation set point 70.0 % rH 1 -
dFH humidi cation di erential 5.0 % rH 1 -
dFd dehumidi cation di . 5.0 % rH 1 -
Tab. 5.k
5.9 Proportional control mode for radiant
oor systems (code ADCF000610)
The control functions use:
built-in temperature sensor for the room temperature measurement;
•
humidity sensor to avoid condensation in cooling mode;•
remote temperature sensor for measuring the heating/cooling water •
temperature, which must be installed, otherwise an error is signalled;
ON/OFF output (R1) as the general signal for controlling the zone •
valve/valves;
proportional 0 to 10 V output for the control of the mixing valve;•
ON/OFF output (R2) for humidity control.•
The dipswitch settings for this speci c model of clima allow operation to
be selected between ON/OFF and proportional, with di erent parameter
con gurations saved by setting the individual DIP con gurations, as
shown in the table; these can then be recalled by the user based on the
selected set of parameters.
The table summarises the con gurations that can be selected:
Dip1 Dip2 Dip3 Model Set param.
OFF OFF OFF T+H radiant ON/OFF #0
ON OFF OFF T+H radiant ON/OFF #1
OFF ON OFF T+H radiant Proportional #2
ON ON OFF T+H radiant Proportional #3
OFF OFF ON T+H radiant Proportional #4
ON OFF ON T+H radiant Proportional #5
OFF ON ON T+H radiant Proportional #6
ON ON ON T+H radiant Proportional #7
Tab. 5.l
DIP 4 sets cooling/dehumidi cation mode (OFF) or heating/humidi cation
(ON), as for the standard models.
Heating control logic
The illustrates operation in heating mode.
4 °C
Temp. acqua
Output
Set point calcolato
Fig. 5.p
Fig. 5.q
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