Room (summer) else supply air

Access 4.x

Control modes > Room (summer) else supply air

This temperature control mode combines Room cascade and Supply air outdoor compensated modes.

Summer/winter mode function is utilized for switching.

In summer - room cascade mode is active and room temperature controller generates the setpoint for the supply air temperature controller.

In winter - supply air outdoor compensated mode is active. Setpoint for supply air temperature is determined by outdoor temperature and dependency curve.

Settings and configuration for Room (summer) else supply air control
	Variable	Available options & Selection	Note
	Activate temperature control type
	Configuration > Functions > Function activation
	Temperature control type	\|...\| Room (summer) else supply air \| … \|	-
	Activate sensors & additional options
	Configuration > Functions > Temperature control
	Room temperature sensor	\| No \| 1 \| 2 \| 3 \| 4 \|	-
	Calculation mode room temperature	\| Average \| Min value \| Max value \| Weighted average \|	* Option available if the number of room temperature sensors is more than 1. Weighted average - average of the min and the max values
	Supply air temperature sensor	\|Yes \| No \|	-
	Summer/Winter mode	\|Yes \| No \|	Function switches to \| Yes \| automatically in this control mode
	Type of switch summer/winter	\| Calendar \| Changeover \| Digital input \| Outdoor temperature \|	[Outdoor temperature] is the default option
	Configure inputs
	Configuration > I/O allocation settings > Analog inputs >
	Room temperature 1		Any available I/O
	Supply air temperature		Any available I/O
	PI Settings
	Configuration > PID controllers > Room
	P-band	[100] oC	PI settings for the room controller
	I-time	[300] s	PI settings for the room controller
	Operational settings
	Data & Settings > Temperature control > Supply air controller
	Supply air temperature	__ oC	Actual supply air temperature
	Setpoint outdoor curve	>	Setpoint curve for winter
	Neutral zone (C°)	[0.0] oC	Width of neutral zone
	Min limit supply air	[12.0] oC	Limits of the supply air temperature. Temperature off these limits will trigger alarm AL-88 or AL89
	Max limit supply air	[30.0] oC
	Actual setpoint supply air	__ oC	Dictionary
	Data & Settings > Temperature control > Room controller
	Room temperature	__ oC	Actual room temperature
	Setpoint room	[21.0] oC	Setpoint for summer
	Outdoor temp for switch between summer/winter	[13.0] oC	Summer / winter mode switch settings
	Outdoor temp hysteresis for switch between summer/winter	[1.0] oC	Summer / winter mode switch settings
	Actual setpoint room	__ oC	Dictionary

	Curve point	Outdoor temperature (C°)	Setpoint supply temperature (C°)
	Setpoint outdoor curve
	Data & Settings > Temperature control > Supply air controller > Setpoint outdoor curve
	Point 1	[-20] oC	[22] oC
	Point 2	[5] oC	[20] oC
	Point 3	[20] oC	[20] oC
	Point 4	[30] oC	[22] oC

Setpoint outdoor curve