CIAT AirControl CTA Manuel De Régulation page 75

Low threshold
alarm
100
50
0
Setpoint
Cooling supply air -5°C
Comfort: 13°C
Eco: 11°C
 When the temperature drops, the controller will calculate the heat requirement needed to keep this temperature constant.
It will gradually adjust the output of the 5 controllable heat generators:
- 1 variable speed rotary heat wheel
- 1 GGS module (modulating or 2-stage)
- 3 heating coils (via a 3-way valve for hot water for coils 1 and 2, via a TRIAC or using 1, 2 or 3 stages in the case of an electric
heater) or a "Mixed" type in heating mode (authorised by the water network temperature sensor for coil 1 only).
Heating requirement (%)
The order in which the various heat generators are activated can be configured.
Coils available to meet the heating requirements
Heating coil
BC
B
A AB
Y
 When the regulated temperature rises, the controller will calculate the exact cooling requirement.
If conditions permit, it will authorise Free Cooling then will gradually adjust the output of the rotary heat exchanger, the 2 cooling
coils (via a 3-way valve for cold water for coils 1 and 2) or a "Mixed" type in cooling mode (authorised by the water network
temperature sensor for coil 1 only).
0
Cooling requirement (%)
Band
Neutral
Setpoint
Cooling supply air
Comfort: 18°C
Eco: 16°C
100 80
Mixed water coil
BM
A
25
50
60 40
B
T°C
AB
S
Y
75 100
EN - 9
High threshold
alarm
°C
Supply air temp.
Setpoint
Heating supply air +5°C
Comfort: 31°C
Eco: 29°C
20 0
Electric heater
BC
Cooling requirement (%)
EN