Room thermostat with KNX communications‚ AC 230 V‚ for fan coil units and universal applications

• KNX communications
• 3 multifunctional inputs for keycard contact‚ external room / return air temperature (QAH11.1‚QAA32)‚ heat / cool changeover‚ operation mode changeover‚ window contact on/off‚ dewpoint monitor‚electrical heater enabled‚ fault contact
• Operating modes: Comfort, Economy and Protection
• 2-position‚ 3-position or PWM control outputs
• Automatic or manual fan speed for 1-speed‚ 3-speed fan
• Automatic or manual heating / cooling changeover
• Adjustable commissioning and control parameters
• Minimum and maximum setpoint limitation
• Backlit display

Application selectable:

• 2-pipe system
• 2-pipe system with electrical heater
• 2-pipe system and radiator / floor heating
• 4-pipe system
• 4-pipe system with electrical heater
• 2-stage heating or cooling system

Operating voltage                           AC 230 V

Switching differential                       Heating: 0.5…6 K

                                                        Cooling: 0.5….6 K

Analog inputs‚ number                    2

Analog inputs, signal                       NTC 3k

                                                        Switch

Digital inputs, number                     1

Relay outputs‚ number                    3

Relay outputs                                  Fan: 1- or 3-speed

Relay output‚ switching voltage       AC 230 V

Relay output‚ switching current       5 (4) A

Triac outputs, number                     3

Triac outputs                                   Valve, el. Heater

                                                        2-position, PWM, 3-position

Triac output‚ switching voltage        AC 230 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