User Manual

Application Sheet INT151
Supply and extract VAV with KNX PL-Link VAV controller, heating
and cooling coil, hot water radiator on triac output including
lighting and blinds operation
DXR2..18-
102A
2 / 8
Technical information in this document are subject to change. Drawings serve illustration purposes only.
Siemens is not responsible for content and any manual modifications.
2019-02-21
A6V10662238_en--_c_--_04
Description
of functions
Basic functions Options
HVAC
∂ PID control for supply VAV and temperature.
∂ The temperature is measured in the room operator
unit.
∂ The application allows customers to adjust the room
temperature setpoints and rapid ventilation via the
room operator unit including the operation of lighting
and blinds.
∂ The operating modes are Comfort, Pre-Comfort,
Economy and Protection.
∂ The air flow for heating and cooling is operated in
sequence to the valves. Parallel operation can be
configured.
∂ VAV actuator on KNX PL-Link.
HVAC
∂ Extract VAV actuator on KNX PL-Link.
∂ PID control LTHW radiator heating.
∂ Heating and cooling coils with 3 position valves
controlled by triac outputs.
∂ Downdraft compensation.
∂ Outside temperature (for downdraft compensation)
distributed over BACnet.
∂ Optimal energy efficiency by including the option for
room/supply air cascade control, presence detector
or window contact.
∂ Optional system alarms displayed on the
management station notify building operators of
possible faults.
∂ Optional trends can be activated for room sensors.
Lighting
∂ The application allows room users to control lighting
via a standard function switching and/or
∂ The application allows customers to control lighting
operation via room unit.
Lighting
∂ Optional system alarms displayed on the
management station notify building operators of
possible faults (e.g. defective electronic control gear
or lamps).
∂ Optional trends can be activated for room lighting.
Blinds
∂ The application allows room users to operate the
blinds via the following commands:
o Move up/down
o Step up/down
∂ The reference model applied ensures exact
positioning of the shading products.
∂ The application allows customers to control shading
operation via room unit.
Blinds
∂ Optional system alarms displayed on the
management station notify building operators of
possible faults (e.g. defective actuator).
∂ Reliable, central override of local operation only for
emergencies, service, and cleaning.
∂ Central weather protection function preventing
damages to shading products due to high winds or
frost.
∂ Optional trends can be activated for room blinds.
Auxiliary functions Variants
∂ Green Leaf (RoomOptiControl) function.
∂ Multisegment use of DXR2 automation stations with
VAV application.
∂ Standard hot water supply chain control.
∂ The application allows for control via centralized
commands (e.g. scheduler program for room operating
mode).
∂ Central optimum start control provides best room
comfort at the start of occupancy.
∂ Central operation or reset of setpoints, timed valve
kick function or outside temperature dependent
heating limit.
∂ Central override functions for valves.
∂ Seasonal compensation of room temperature
setpoints.
∂ PWM constant (incl. spring return) or PWM thermal
control can be selected for valves.
∂ The room temperature can be measured by:
o KNX PL-Link wall-mount sensor
o KNX PL-Link flush-mount room operator unit
o KNX PL-Link flush-mount sensors
o Analog extract air temperature sensor
∂ KNX PL-Link switches for lighting and blinds
operation.
∂ Presence can be detected by KNX PL-Link sensor
or binary sensor.
Lighting
∂ The application allows for control via centralized
commands (e.g. scheduler program).
∂ The application function supports runtime totalization
for each lighting group for maintenance and service
purposes (burn in/operation h/EOL end of life cycle).
Blinds
∂ The application allows for control via centralized
commands (e.g. scheduler program or weather
station).