13.1. Control of the supply air temperature
Control in summer (COOLING mode)
minimum temperature limit
13 - OPTIONAL FUNCTIONS OF CONTROL
SUMMER
3-WV
Band
Tc
i Supply T
• Only hot water coil
100%
0%
C2-2 C2-1 C1-2 C1-1
Band
Tc
i
• Only compressors
SUMMER
Supply T
R2
R1
Band
Tc
i
• Only electrical heaters
SUMMER
Supply T
V3V
Band
Tc
i
• Compressors + hot water coil
100%
0%
2 stages 2 stages
C2-2 C2-1 C1-2 C1-1
Band
Tc
i
• Compressors + electrical heaters
2 stages 2 stages
C2-2 C2-1 C1-2 C1-1
R2
R1
SUMMER
Supply T
SUMMER
Supply T
Where:
supply temperature setpoint
SupplyT: supply temperature
Tc
s
:
Control in winter (HEATING mode)
maximum temperature limit
F. MODES
minimum temperature limit
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