Belimo VRD2 - TROX

Design and Areas of Application
VAV System with Electronic or
Pneumatic Volume Flow Control
t
VAV System with Digital Single Room Control
t
Room Temperature Controller
Trox scope of supply
Volume Flow Controller
Volume Flow and
Room Temperature
Controller (DDC)
Guarantee limit between Trox and system
manufacturer or manufacturer of control
components
3
Trox Scope of Supply
The guarantee limits for VAV terminal units are set by the
control function. The diagrams show the usual control
systems used today. When a volume flow controller is
used, this limit is defined by input and output signals.
With combined room temperature and volume flow controllers,
this limit passes through the controller. In these
cases, the manufacturer of the VAV terminal unit guarantees
to maintain the volume flow, and the supplier of the
temperature controller guarantees the control of room
temperature.
The scope of supply for VARYCONTROL systems
includes:
• the VAV terminal unit with its flow and acoustic properties
as given in the sales literature, and the control
components ordered
• installation, wiring and tubing connections of the control
components mounted on the unit
• volume flow adjustment and individual calibration test
of unit and control components
• guarantee for the above system according to the terms
and conditions of order
• technical documentation
The following are not included:
• fixing and sealing materials
• water control valves and fittings for the reheat coils
• transformers, unless specified and shown on order
paperwork
• pressure regulators to the operating pressure of the
pneumatic controller of 1.3 bar
The guarantee for the “room temperature” control system
and customer overrides in principle the responsibility of
the building control system/BMS company. Information
on power consumption, connections etc. is given in the
technical documentation from the control component
manufacturer.