Room thermostat with KNX communications‚ AC 24 V‚ VAV heating and cooling systems

• KNX communications
• Output DC 0…10 V for VAV actuator and auxiliary output ON/OFF‚ PWM or 3-position or 3-position for VAV actuator and auxiliary output DC 0...10 V
• 2 multifunctional inputs for keycard contact‚ external room / return air temperature (1x‚ QAH11.1‚ QAA32)‚ heat / cool changeover‚ operation mode changeover‚ window contact on/off‚ dewpoint monitor‚ electrical heater enabled‚ fault contact
• 1 input DC 0...10 V for damper position feedback
• Operating modes: Comfort, Economy and Protection
• Modulating PI control
• Control depending on the room or the return air temperature
• Automatic or manual heating / cooling changeover
• Adjustable commissioning and control parameters
• Minimum and maximum setpoint limitation
• Minimum and maximum limitation of air flow signal
• Output signal inversion (DC 0...10 V) as an option
• Backlit display

Application selectable:

• Single-duct system
• Single-duct system with electrical heater
• Single-duct system and radiator / floor heating
• Single-duct system with heating / cooling coil

Operating voltage                           AC 24 V

Setpoint setting range                     5…40 °C

Analog inputs‚ number                    2

Analog inputs, signal                       NTC 3k

                                                        DC 0…10 V

Digital inputs, number                     1

Analog outputs‚ number                  1

Analog outputs                                VAV actuator, electric heater, valve

Analog output, signal                      DC 0…10 V

Analog output, current                     Max. ±1 mA

Triac outputs, number                     1

Triac outputs                                   VAV actuator, valve, el. heater

                                                        2-position, PWM, 3-position

Triac output‚ switching voltage        AC 24 V

Triac output‚ switching current        Max. 1 A

Type of fixing                                  Wall mounting with screws

Degree of protection                       IP30

Dimensions (W x H x D)                 93 x 128 x 30,8 mm