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TF5814GB_E
Aereco S.A.
6.
MOTORISED VALVES FOR THE VMX SYSTEM
6.1. DESCRIPTION OF MOTORISED VALVES
Maximum 6 valves connected to a single ventilation unit (one ventilation unit = one MAIN module)
The VMX system motorised valves are composed of a TROX valve (model VFC 125, VFC 160 or VFC 200), a
VMX Drive
and a
VMX VFT
adaptor plate.
Characteristics and functions of the VMX system motorised valves:
·used for exhaust only, supply only and balanced ventilation
·do not require a regulator module (function included on TROX VFC models)
·differential pressure range from 30 to 500 Pa
·flow tolerances approximately ±10 % against a V
nom
displayed on the curve
·valve connection with lip seal, corresponding to circular gains according to DIN EN 1506 or DIN EN 13180
·diameters : Ø125, Ø160 et Ø200 mm. Also available in Ø80, Ø100 and Ø250 mm, but only by special request.
With 3 wires, the valves can open simultaneously.
D6060_A
VFC valve
VMX VFT base for VFC valve
Drive (VMX Drive)
6.2. CHRONO-PROPORTIONAL FUNCTION
The VMX system motorised valves function on “full or none”. This principal enables the ventilation of rooms at the nominal flow of the diffuser only,
which guarantees a purging effect and optimal distribution of new air.
By managing opening times on full or none modulated in ten-minute cycles, this principle enables the achievement of a mean flow per cycle in
proportion to the input parameters (level of CO
2
, presence, motion, etc.). This management mode is called the "Chrono-proportional mode".
In chrono- proportional mode:
·10 % ventilation = 1 minute with venti 9 minutes without ventilation
·20 % ventilation = 2 minutes with venti 8 minutes without ventilation
·30 % ventilation = 3 minutes with venti 7 minutes without ventilation
·etc.
Valves
