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CONTROL SYSTEMS
DUPLEX units are delivered with basic control components
or with complete control systems. There are three types
of control systems available (electric, digital and control for
kitchens) according to customer needs and an application.
The systems also include variety of sensors (temperature,
humidity, air quality, CO ) for effective operation control.
• selection of the most suitable and efficient control
system at the lowest cost, depending on the particular
application
• control system is integrated with the unit, most
components are already wired and checked in factory,
thus reducing the risk of incorect wiring
• no control system project documentation is necessary
for standard cases, standardized solutions can be used
• simple wiring, system simplicity, error indication
• qualified technical support and consulting
2
Features of the control systems
Type
Characteristics
Use
Simplified diagrams of electrical wiring
„A“ – basic
„B“ – electric
OPS
– all electrical components are wired
to a junction box terminal strip
inside or outside the unit
– standard components are fans,
damper actuators, capillary freeze
protection thermostat of hot water
heating coil
– more components is included upon
customer's request (exact
actuator type, sensors,
thermostats, pressure switches
etc.)
– simple system
– two-speed fan control (MIN, MAX)
(exact volume flow rate can
individually be set for each fan
during commissioning)
– on/off control of by-pass and
mixing damper
– on/off remote control of heating
coil: temperature is set on the
thermostatic valve of hot water coil
or directly on the electric coil
– suitable for applications
with separate delivery of
control system; e.g. large
buildings with central
control system etc.
– electric system is suitable
for simple applications
(e.g. ventilation of locker
rooms, gyms, restaurants
etc.)
– it cannot be used for units
with cooling coil
–
it is recommended for
applications with air reheat
only (not for warm-air
heating)
S U M M A R Y O F D U P L E X C O N T R O L S Y S T E M S
Electric heater
(basic modification)
DUPLEX-T
DUPLEX
HYG, QPA, PS
(humidity sensors,
air quality, movement)
OPS 1series control panel
basic series
basic function
+
water heating coil
(SR-T module)
basic function
+
elect. heater control
(SR module)
230 V
50 Hz
Supervisory control system
basic version
(fans, actuators, thermostats,
pressure switches
and others on request)
„E“ – digital
control series DC
– comfort system of controlling
DUPLEX units
– the programmable module
software has been developed
exlusively for DUPLEX units
– supply and extraction fan speed
control
– room or supply temperature
control
– water / electric heating coil control
option
– water /direct cooling option
– heat pump performance control
– automatic by-pass and circulation
damper control
– suitable for comfort
applications
– fully automated operation
option with daily or weekly
programme
– air quality, Co concentration,
relative humidity or other
sensors may be connected
– optional control via a 0 – 10 V
signal from a superior system
– connectivity to central control
systems using expansion
cards (KNX, Modbus, ...)
– complete set-up using the
connected graphic controller
possible
2
DUPLEX
DC control
(module DC-XS)
(module DC EXPc)
Controllers
DC-p1, DC-p2
Communication
cols
KNX,
proto
Modbus,
TCP/IP
External
elements