Semi Flush-mount room thermostat for rectangular conduit box with KNX
communications‚ for VAV application
Semi Flush-mount room thermostat for VAV application

• KNX communications
• Output for a DC 0…10 V actuator and AC 230V electrical heater (ON-OFF)
• 2 multifunctional inputs for key card contact‚ external room / return air temperature (QAH11.1‚QAA32)‚ heat / cool changeover‚ window contact on/off‚ dewpoint monitor‚ electrical heater enabled‚ fault contact
• 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
• Adjustable minimum and maximum limitation for air flow signal DC 0...10V
• Output signal inversion as an option

Application selectable:

• Single-duct system
• Single-duct system with electrical heater

Operating voltage                           AC 24 V
Setpoint setting range                     5...40 C
Analog inputs‚ number                    2
Analog outputs‚ number                  1
Analog output‚ signal                       DC 0...10 V
Analog output‚ current                     Max. ±1 mA
Relay outputs‚ number                    1
Relay outputs                                  N.O. contact, potential-free
Relay output‚ switching voltage      AC 230 V
Relay output‚ switching current      Max. 5 (2) A
Type of fixing                                  Recessed rectangular conduit box BS4662 (ARG71) with fixing
centres of 60,3 mm
Degree of protection                       IP30
Dimensions (W x H x D)                 86 x 86 x 57 mm