Danfoss FEV-Z, AB-QM Data sheet
1 2
3
Data Sheet
FEV-Z Climate Sensors for AB-QM Automatic Flow
Limiter
Product
Ordering and Specifications
Application
The FEV-Z climate sensor is a proportional
controller which opens or closes an AB-QM
automatic flow limiter valve as a function of the
temperature deviation.
The FEV-Z is to be applied in climate systems with
i.e. ceiling-, floor- or radiator heating.
The FEV-Z climate sensor should be mounted on
an internal wall at a height of approximately 1.5
meter in such a way that the room temperature
FEV-Z for AB-QM automatic flow limiter - with
integrated sensor
Type Description Setting range Code no.
Climate sensor with adapter for AB-QM automatic flow limiter, 8
FEV-Z
m capillary tube
Heating: Floor-, ceiling-, or radiator heating
can be measured accurately.
17-27 °C 013G5458
Design
The FEV-Z sensor is equipped with a direct acting
valve controller that opens the valve when the
temperature drops below the set temperature.
If the set temperature is equal to or higher than
the room temperature the valve is open.
1. FEV-Z
2. AB-QM
3. Heating circuit
FEV-Z has a valve adapter especially designed for
use with Danfoss AB-QM automatic flow limiters.
Danfoss Heating Solutions VDXFK202 © Danfoss 02/2011 1
1
2
17
15
18
16
19
17
20
18
21
19
22
20
23
21
24
22
25
23
26
24
27
25
l/h
˚C
1
2
Data Sheet FEV-Z Climate Sensors for AB-QM Automatic Flow Limiter
Temperature Setting
Temperature Control
Through Heating with FEV-Z
1. Valve adapter (heating)
2. Actuator
3. Adjustment bellows
4. Capillary reel
5. Remote temperature adjuster
6. Bellows
Comfort temperature ~ 22 °C at Xp = 0 K The FEV-Z sensor has been developed for heating
regulation of water-based systems.
The FEV-Z sensor is based on the self-acting principle. The liquid-filled sensors control the valves
via capillaries and adapters.
The scale shows the approximate set-point offset
from the comfort temperature which is
approximately 22 °C at Xp = 0 K.
Control area of FEK sensor with RA-C valve
Xp = 0K
Xp = 2K
When the knob has been set in the middle
Heating with FEV-Z sensor
position the valve will open at temperatures
lower than 22 °C.
A setting in the red zone means the valve will
open at a higher room temperature.
A setting in the blue zone means the room
temperature will be kept at a value lower then 22
°C.
2 VDXFK202 © Danfoss 02/2011 Danfoss Heating Solutions
1. Waterflow, heating
2. Set point on knob
Loading...