Page 75 - Fan Coil Unit

VALVE & FCU CONTROL SYSTEM CONFIGURATION DIAGRAM

AC 220 V AC 220 V AC 220 V
FCS / FHS
FCR / FHR
Combina�on Valve Combina�on Valve Combina�on Valve

TVS-05 FCU TVS-05 FCU TVS-05 FCU

GATEWAY

IBS Network IBS Network IBS Network

VALVE & FCU System

VALVE & FCU CONTROL SYSTEM CHARACTERISTICS

▶ Example of the FCU Air Volume and Valve Opening Based on Temperature
• Control Conditions:
Set Temperature Operating/Driving Mode RANKUP (Variable Rate by Airflow Volume) Heating Valve Opening Rate
28 degrees Celsius Heating 20% 80%
• Temperature Increase: When the temperature rises and approaches the set temperature, the air volume and valve opening is lowered (strong ⇨ medium ⇨
weak) to reduce the supply of hot and cold water.
• Temperature Decrease: When the temperature drops below the set temperature, the air volume and valve opening is raised (weak ⇨ medium ⇨ strong) to
increase the supply of heat source water (cold water, hot water).
• Temperature Maintenance Zone: When the temperature approaches the set temperature, the air volume operates in weak mode, maintaining the minimum
valve opening or stopping to ensure a consistent temperature.

30 Stop (0%)
29 Stop (0%)
28
27 Weak (48%) Weak (48%)
26
25 Medium (64%)
24 Medium (64%)
23
22 Strong (80%)
Temperature Strong (80%)
Temperature Rising Zone Temperature Falling Zone Temperature Maintenance Zone

75