Carel MasterAria, User Manual

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45
ENG
MasterAria +030220481 - rel. 1.0 - 12.11.2007
P01
TA (°C)
P111
P112
ON
OFF
Fig. 5.h
Key:
P111 heater activation delta
P112 heater hysteresis
R heater
TA room temperature (control probe)
Table of dipswitch settings
function n. function setting position
heat, cool-enable functions 1 deactivated OFF
remote cooling/heating (DI2) 2 activated ON
remote lock active 3 deactivated OFF
2 coils available 4 deactivated OFF
electric heater fi tted 5 activated ON
control probe on “acqua”
terminal
6 activated ON
Tab. 5.b
Functional diagrams
U
S S
VF VC
P114=30
P116=30
100%
P01
TA (°C)
P109=2
P114=30
P115=30
P109=2
P119=20
Fig. 5.g
Important: drawing not to scale for graphics requirements.
Key:
P114 proportional band for damper (°C/10) S outside damper
P115 proportional band for cooling valve (°C/10) TA room temperature (control probe)
P116 proportional band for heating valve (°C/10) VC heating valve
P109 dead band (°C/10) VF cooling valve
P01 set point U outputs
Description of the functions
The hot/cold water valve is opened according to the activation delta
•
(default =0) and the P+I algorithm proportional bands;
the outside damper is activated when the air handling unit is started. It
•
closes in the event of antifreeze alarms, activated by digital input DI4;
the heat recovery unit damper is opened in cooling or heating if the
•
conditions are favourable (see the paragraph on the heat recovery
unit);
dirty fi lter alarm via diff erential pressure switch connected to digital
•
input DI5.