| [ ADMINISTRATION FAN CONTROL ] IF DAY SCHEDULE ON THEN
 DAY_OPERATION
ELSE NIGHT_OPERATION
:DAY_OPERATION
START SUPPLY_FAN,
RETURN_FAN
HEATING_COIL_VALVE =
(AIR_SETPOINT - AIR_TEMP) * HEATING_COIL_GAIN
HEATING_COIL_VALVE =
MIN ( HEATING_COIL_VALVE,100 )
RET
:NIGHT_OPERATION
[ ALSO MUST CHECK
NIGHT SETPOINT ]
IF
AVERAGE_TEMPERATURE < NIGHT_SETPOINT THEN
DAY_OPERATION
ELSE
STOP SUPPLY_FAN,
RETURN_FAN
HEATING_COIL_VALVE = 0
RET |