52
|
Variable air volume controllers
VAV-Compact D3
VAV-Compact controller with integrated pressure sensor, VAV controller and
damper actuator for pressure-independent VAV and CAV applications in the
comfort zone
• Control: DC 0/2 … 10V / MP-Bus
• Integration in bus systems
– DDC controller with MP interface
– L
ON
W
ORKS
®
systems
– Fan optimiser systems
• With additional switch-on option for sensors and switches
• Diagnostic socket for Service and PC-Tool
LMV-D3-MP
NMV-D3-MP
Brief description
Application
The digital VAV-Compact has PI control characteristics and is used for pressure-independent
control of VAV units in the comfort zone.
Pressure measurement
The integrated maintenance-free Belimo D3 differential pressure sensor is also suitable for
very small volumetric flows. It is for this reason that it covers versatile applications in the
comfort zone, e.g. in residential construction, offices, hospitals, hotels, cruise ships, etc.
Actuator
Three versions available, depending on the size of the VAV unit: 5 / 10 / 20 Nm.
– Rotary actuator, depending on the size
– Linear actuator 150 N with 100, 200 or 300 mm linear movement
Control function
VAV-CAV or Open-Loop operation for integration in an external VAV control loop.
Feedback
Damper position for fan optimiser systems, current volumetric flow or pressure value.
VAV – variable volumetric flow
For variable volumetric flow applications with a modulating reference variable, e.g. room
temperature controller, direct digital control or bus system, it enables demand-related,
energy-saving ventilation of individual rooms or zones. The operating range
min …
max
can be connected via selectable mode.
The following are available: DC 2 … 10V / 0 … 10V / adjustable range / bus operation
CAV – constant volumetric flow
For constant volumetric flow applications, e.g. in step mode, controlled by means of a
switch. The following operating modes can be selected from: CLOSED /
min / (
mid ) /
max / OPEN
Bus function
Up to eight Belimo MP devices (VAV / damper actuator / valve actuator) can be connected
together over the MP-Bus and integrated into the following systems:
– LONWORKS ® applications with Belimo UK24LON interface
– EIB Konnex applications with Belimo UK24EIB interface
– MODBUS RTU applications with Belimo UK24MOD interface
– BACnet applications with Belimo UK24BAC interface
– DDC controller with integrated MP-Bus protocol
– Fan optimiser applications with optimiser COU24-A-MP
A sensor (0...10V or passive), e.g. a temperature sensor or a switch, can optionally be
integrated into the higher-level DDC or bus system via the MP-Bus.
Operating and service devices
Belimo PC-Tool or service tool ZTH-GEN, can be plugged into the VAV-Compact
(PP connection) or via MP-Bus.
Assembly and connection
The VAV-Compact, which is assembled on the unit by the OEM, is connected using the
prefabricated connecting cable.
Test function / test display
The VAV-Compact features two LEDs with a functional readiness display for commissioning
and functional checking. Extended information with ZTH-GEN.
OEM factory settings
The VAV-Compact is mounted on the VAV unit by the unit manufacturer, who adjusts and
tests it according to the application. The VAV-Compact is sold exclusively via the OEM
channel for this reason.
Type overview
Type
Torque Power consumption Dimensioning
Weight
LMV-D3-MP 5 Nm
2 W
4 VA (max. 8 A @ 5 ms) Approx. 500 g
NMV-D3-MP 10 Nm
3 W
5 VA (max. 8 A @ 5 ms) Approx. 700 g
SMV-D3-MP 20 Nm
3 W
5.5 VA (max. 8 A @ 5 ms) Approx. 830 g
LHV-D3-MP 150 N
2.5 W 4.5 VA (max. 8 A @ 5 ms) Approx. 550 g
