TEMPERATURE & HUMIDITY CONTROLLER FOR ONE-BATTERY AIR-HANDLING UNITS OPTIONAL TELEMANAGEMENT XTU 614
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• TELEMANAGEMENT : Enabled with ACB 460 accessory.

APPLICATION

For control of room temperature and humidity and/or discharge air in air-handling units comprising:

• 1 battery for heating and/or cooling or pre-heating.

• 1 On-Off humidification battery.

• 1 air mixing unit or 1 heat regenerator.

Essential detectors:

• 1 room or air duct temperature detector.

Optional accessories:

• 1 flow or pre-heating temperature detector.

• 1 outside temperature detector.

• 1 room or air duct hunidity detector.

• 1 window dew-point detector.

• 1 battery Frosprot detector.

• 1 temperature set-point adjuster

• 1 humidity set-point adjuster.

FEATURES

• Power supply: 24V~

• Consumption: 5VA

• DIN 105 x 115 modular enclosure

• Protection: IP 40.

• Digital programming by means of 4 keys and alphanumeric display.

• Timed programming: 24hour and 7day.

• Programming with dates: 25 holiday periods; winter season; summer season.

• Automatic switching GMT – BST..

• One 3-wire modulating output or On-Off in 2 stages (2 equal loads) or in 3 stages (2 unequal loads) configurable for:

  • control of winter & summer room temperature with, if required, summer outside compensation, minimum & maximum limits of flow in order to avoid cold air currents, stratification of hot air and condensing in the air ducts.

  • control of flow temperature at fixed point with, if required, winter & summer compensation.

  • control of pre-heating temperature at a variable value in relation to room temperature & humidity.

• 1 On-Off output for control humidifying unit for control of relative humidity at fixed point.

• 1 progressive 0 ... 10 V- output configurable for:

  • control of mixture outside air in relation to comparison room - outside temperatures.

  • control outside air for control of room dehumidification with compensation for windows dew point.

  • control of heat regenerator in relation to comparison room – outside temperatures.

• Two On-Off outputs for control of fan and pump according to timed program in use.

• Control Frosprot temperature battery.

• Manual or automatic season switching of controller functions and of On-Off 3-wire season switch.

• Variation of temperature & humidity set points by means of remote control.

• Alarms for plant faults and for open or short sensor circuit.

DETECTORS & ACCESSORIES

Code		Description	Application range	Sensing elem. or signal	Data sheet
ACB 460		Plug-in for communicating via .	-	-	T 433
STA 010		Air duct temperature sensor (extract, discharge, condensation).	0 ... 60 °C	NTC 10 kΩ	N 150
SAB 010		Room temperature sensor in wall mounting case 80 x 80 x 32.	0 ... 40 °C	NTC 10 kΩ	N 111
STA 001		Air duct temperature sensor (external).	-40 ... 40 °C	NTC 1 kΩ	N 150
SAE 001		Outside temperature sensor.	-40 ... 40 °C	NTC 1 kΩ	N 120
SAF 010		Cable-type temperature sensor (Frosprot).	0 ... 40 °C	NTC 10 kΩ	N 145
STV 010		Windows temperature sensor (dew point)	0 ... 40 °C	NTC 10 kΩ	N 160
SUR 704		Air duct relative humidity sensor.	10 ... 90 %	0 ... 10 V­	N 221
SUT 714		Air duct relative humidity sensor (for swimming pool).	10 ... 90 %	0 ... 10 V­	N 222
SAU 914		Relative humidity	10 ... 90 %	0 ... 10 V­	N 227
		& temperature sensor.	0 ... 40 °C	NTC 10 kΩ
CDB 100		Temperature setpoint adjuster.	­5 ... 5 °C	-	-
CDB 200		Remote control for changing program in use.	­10 ... 10 %	-	-