KTRRB ranges (Air Conditioning Technolgy)
KTRRB-117.128, KTRRB-117.163 and KTRRB-117.169
Single room temperature controllers with neutral zone for 2-pipe or 4-pipe air conditioners.
External flow sensor (H/C sensor): for automatically switching the controller to heating or cooling mode in 2-pipe operation depending on the inflow temperature; alternatively, this input can be used as an H/C changeover contact.
Sensor rupture and short-circuit protection: in case of a sensor rupture or sensor short-circuit, the heating is activated with a power-on time of 30% to prevent cooling or frost damage in the room.
KTRRB-052.244 and KTRRB-052.245
Temperature controller for cooling ceilings/walls and all kinds of hot water heaters in 2 and 4 pipe systems for hotels, offices and private homes. As the KTRRB features dew point monitoring it is particularly suitable for controlling ceiling cooling systems.
The units can control up to 5 valve actuators (24V normally closed) per output. It can also be adapted to normally open actuators (24V, max 5 pieces) with a jumper.
