Krom Schroder RV User manual

DK S N P GR
➔www.docuthek.com
D GB F NL I E
TR CZ PL RUS H
© 2021 Elster GmbH · Edition 03.21
Safety
Please read and keep in a safe place
Please read through these instructions
carefully before installing or operating. Following the
installation, pass the instructions on to the opera-
tor. This unit must be installed and commissioned
in accordance with the regulations and standards
in force. These instructions can also be found at
www.docuthek.com.
Explanation of symbols
•,  ,  ,  ... = Action
▷= Instruction
Liability
We will not be held liable for damage resulting from
non-observance of the instructions and non-com-
pliant use.
Safety instructions
Information that is relevant for safety is indicated in
the instructions as follows:
DANGER
Indicates potentially fatal situations.
WARNING
Indicates possible danger to life and limb.
CAUTION
Indicates possible material damage.
All interventions may only be carried out by qualified
gas technicians. Electrical interventions may only be
carried out by qualified electricians.
Conversion, spare parts
All technical changes are prohibited. Only use OEM
spare parts.
Contents
Operating instructions
D
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GB-1
05497
Translation from the German
Control valve RV
Control valve with solenoid valve
RVS
Control valve RV
Control valve with solenoid valve RVS......
Contents ..............................
Safety.................................
Checking the usage .....................
Installation ............................
Wiring ................................4
Wiring the solenoid actuator................4
Wiring the actuator.......................4
RV..S1 connection diagram ................5
RV..E connection diagram .................6
Tightness test ..........................7
Commissioning.........................8
Readjusting the closed position...........8
Accessories ...........................9
Installation sets RP RV, RS RV
. ............ 9
Seal set ...............................9
Maintenance ..........................0
Removing/Replacing the actuator ..........10
Cleaning the strainer ....................10
Removing/Replacing the solenoid actuator ...10
Assistance in the event of malfunction ....
Technical data ........................
Air flow rate Q.........................
Designed lifetime ......................
Logistics .............................
Certification ..........................4
Disposal .............................4
Contact ..............................4
Safety
Contents

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Checking the usage
RV, RVS
The control valve RV is designed for regulat-
ing flow rates for modulating-controlled com-
bustion processes on gas and air appliances
which require a large control ratio of up to 100:1.
The RVS also features an integrated solenoid valve
so that the gas can be safeguarded and controlled
without any additional pressure loss.
This function is only guaranteed when used within
the specified limits– see also page12 (Technical
data). Any other use is considered as non-compliant.
Type code
Code Description
RV
RVS
Control valve
Control valve with solenoid valve


40 – 00
Size 2
Size 3
DN 40–100
/A – Z Valve seat A–Z
ML
F
MODULINE system
Flange to ISO 7005
0
0
0
05
0
pu max. 150 mbar
pu max. 200 mbar
pu max. 360 mbar
pu max. 500 mbar
pu max. 1000 mbar
Q
W
Mains voltage:
120 V AC, 50/60 Hz
230 V AC, 50/60 Hz
0
60
30 s running time
60 s running time
S
E
Three-point step control
Continuous control

6
Electrical connection of solenoid valve:
terminal connection box
with standard plug
VOptional: Viton valve disc seal
Part designations
RVS..ML
RV..ML
RVS..F
RV..F
6
5
2
4
1
3
Control valve RV..ML
Control valve with solenoid valve RVS..ML
Control valve RV..F
4Control valve with solenoid valve RVS..F
5Solenoid actuator for valve function
6Position indicator/Cover cap for projecting shaft
Type label
▷
Mains voltage, enclosure, inlet pressure, medium,
ambient temperature and running time– see
type label.
RV..
D-49018 Osnabrück, Germany
www.kromschroeder.com
P:
U:

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Installation
CAUTION
Please observe the following to ensure that the
device is not damaged during installation:
– Sealing material, thread cuttings and other
impurities must not be allowed to get into the
housing.
– Dropping the device can cause permanent dam-
age. In this event, replace the entire device and
associated modules before use.
– Use approved sealing material only.
– Install the unit in the pipe free of mechanical
stress.
– Do not clamp the unit in a vice or use it as a lever.
Only secure the flange by holding the octagon
with a suitable spanner. Risk of external leakage.
– Check the inlet pressure – see type label.
▷The control valve is supplied in the closed posi-
tion (0%).
▷RV installation position: as required.
▷RVS installation position: not upside down.
▷ The housing must not be in contact with ma-
sonry. Minimum clearance 20mm (0.78").
> 20 mm
>20 mm
▷The inlet pressurepuand the outlet pressurepd
can be measured using the pressure test points
on both sides. There are two pressure test points
on the RV..F and RVS..F, while the RV..ML and
RVS..ML have one pressure test point at the inlet.
pd
pd
pu
p
u
RV..ML, RVS..ML without flanges
3 4 5
6 87
21
9 10
▷ We recommend installing an inlet flange with
integrated strainer.
3 4 5
6 87
21
9 10
RV..F, RVS..F with flanges
▷A strainer is integrated in the RV..F, RVS..F.
▷ Remove the plugs or stickers protecting the
device from dirt.
3
1 2
64 5
3

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Wiring
WARNING
Attention! Please observe the following to ensure
that no damage occurs:
– Electric shocks can be fatal! Before working
on possible live components, ensure the unit
is disconnected from the power supply.
– It must be possible to isolate the actuator from
the power supply. Provide a double pole switch.
– The solenoid actuator heats up during opera-
tion. Surface temperature approx. 85°C (approx.
185°F).
▷Use temperature-resistant cable (>90°C).
▷Install supply and signal lines separately.
▷ Conductors which have not been connected
(spare conductors) must be insulated at their
ends.
▷Cables should be installed well away from high-
voltage lines of other devices.
▷Observe EMC Directive for installation of signal
lines.
▷Use cables with wire end ferrules.
▷ When operating two or more actuators in parallel,
the three-point step controller (terminals 4 and5)
must be electrically isolated to avoid leakage
currents. We recommend using relays.
▷Interference suppression capacitors installed in
the system must only be used in conjunction with
a series resistor so as not to exceed the maxi-
mum current– see page12 (Technical data).
▷Running times are reduced by a factor of 0.83
at 60 Hz compared to 50 Hz.
▷External devices can be activated or intermedi-
ate positions can be checked via two additional,
floating, infinitely adjustable switches (cams N3
andN4).
▷ RV..E, RVS..E: the input signals for the control
valve can be set using DIP switches.
▷Wiring to EN60204-1.
▷ Before opening the unit, the fitter should ground
himself.
RV
Only the actuator is wired on control valve RV.
RVS
Wiring the solenoid actuator
The solenoid actuator is wired using the cable gland
or the socket.
 Disconnect the system from the electrical power
supply.
 Shut off the gas supply.
Cable gland
▷Cable cross-section: max. 2.5mm².
4 53
7
6
-
NLV1
+
Socket
1 = N (–), 2 = L1V1 (+)
21
43 5
6 8
7
RV, RVS
Wiring the actuator
 Disconnect the system from the electrical power
supply.
 Shut off the gas supply.
▷Cable cross-section: max. 1.5 mm².
▷RV..S = 2 x M20 cable glands,
RV..E = 3 x M20 cable glands.
43 5
6 8
7
6 Set the slide switch to Automatic mode.
21
Toggle switch
Slide switch
7 Wire as shown on the connection diagram,
see page5 (RV..S1 connection diagram) or
page6 (RV..E connection diagram).

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RV..S, RVS..S
RV..S connection diagram
▷
The connection diagram refers to the closed
control valve.
▷Terminals 7 to 12: floating auxiliary switches.
▷Terminals 19 to 24: optional potentiometers for
feedback, see accessories, feedback potentiom-
eter installation set or Feedback current sensor
installation set.
Three-point step control
▷In the case of default setting “Closed”:
The control element opens when voltage is ap-
plied to terminal4 (0→100%).
The control element closes when voltage is ap-
plied to terminal5 (100→0%).
▷ When the voltage is disconnected, the control
valve remains in its current position.
Feedback
▷A feedback potentiometer and an optional cur-
rent sensor offer the option of monitoring the
current position of the actuator, see accessories.
▷ The available feedback range of the feedback
potentiometer depends on the adjustment of
switching cams N1 andN2.
0
Ω
open
100%
100%
50%
50%

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RV..E, RVS..E
RV..E connection diagram
▷
The connection diagram refers to the closed
control valve.
▷Terminals 7 to 12: floating auxiliary switches.
Continuous control
0 – 10 V
+ −
U
0 – 20 mA
4 – 20 mA
+ −
I
▷ The actuator reacts to the setpoint specification
0–10V or 0(4)–20mA via terminals 20 and21.
▷ The continuous signal corresponds to the open-
ing position to be approached (e.g. with a 0 to
20mA signal, 10mA correspond to 50% open-
ing).
Feedback
▷ Terminals 22 and 23: the RV..E, RVS..E offers
the option of monitoring the current position
of the actuator via the continuous 4–20mA
output signal.
Setting the opening position to correspond to
the input signal
▷The minimum and maximum opening positions
can be set using potentiometers P1 andP2.
P1 = closed position (approx. 0 – 50%),
P2 = open position (approx. 50 – 100%).
+
_ _
P1 = closed
P2 = open
P3 = hysteresis
Input signal
▷ The positioning control hysteresis can be ad-
justed on a potentiometer to suppress fluctua-
tions or interference in the input signal.
▷The hysteresis can be reduced and the control
accuracy increased by turning the potentiometer
screw clockwise.
▷ After changing the setting, ensure that the actua-
tor does not oscillate when operating.
–+
P1 = closed
P2 = open
P3 = hysteresis

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RV..S, RV..E
▷
After completing the installation and setting work,
fit the housing cover.
Tightness test
RV
 Open the control valve.
 To be able to check the tightness, shut off the
downstream pipeline close to the valve.
RV..ML
N
2
≤ 1,5 × pu max
≤ 1,5 × pu max
N
2
N
2
≤ 1,5 × pu max
N
2
≤ 1,5 × pu max
3
6
4
34
56
5
RV..F
N
2
≤ 1,5 × pu max
≤ 1,5 × p
u max
N
2
N
2
≤ 1,5 × pu max
N
2
≤ 1,5 × pu max
3
6
4
34
56
5
RVS
 Close the gas solenoid valve.
 To be able to check the tightness, shut off the
downstream pipeline close to the valve.
RVS..ML
0
N
2
0
≤ 1,5 × pu max
≤ 1,5 × pu max
≤ 1,5 × pu max
0
N
2
0
N
2
≤ 1,5 × pu max
0
N
2
≤ 1,5 × pu max
0
3
6
4
78
5
3
6
4
78
5
Open the
solenoid
valve and the
control valve.
Open the
solenoid
valve and the
control valve.
0
N
2
0
≤ 1,5 × p
u max
≤ 1,5 × p
u max
≤ 1,5 × p
u max
0
N
2
0
N
2
≤ 1,5 × p
u max
0
N
2
≤ 1,5 × p
u max
0
3
6
4
78
5
3
6
4
78
5
Magnetventil
und
Regelventil
öffnen.
Magnetventil
und
Regelventil
öffnen.
Откройте
запорный
электромаг-
нитный клапан
и регулирую-
щий клапан.
Откройте
запорный
электромаг-
нитный клапан
и регулирую-
щий клапан.
Open the
solenoid
valve and the
control valve.
Open the
solenoid
valve and the
control valve.
Ouvrir
l’électrovanne
et la vanne
de réglage.
Ouvrir
l’électrovanne
et la vanne
de réglage.
Magneetklep
en regelklep
openen.
Magneetklep
en regelklep
openen.
Aprire la
valvola
elettroma-
gnetica e la
valvola
modulante.
Aprire la
valvola
elettroma-
gnetica e la
valvola
modulante.
Abrir la
válvula
electromag-
nética y la
válvula de
regulación.
Abrir la
válvula
electromag-
nética y la
válvula de
regulación.
Åbn magnet-
ventilen og
regulerings-
ventilen.
Åbn magnet-
ventilen og
regulerings-
ventilen.
Abrir a válvula
solenoide e a
válvula de
controle.
Abrir a válvula
solenoide e a
válvula de
controle.
Ανοίξτε την
ηλεκτρομαγ-
νητική βαλβί-
δα και τη
βαλβίδα
ρύθμισης.
Ανοίξτε την
ηλεκτρομαγ-
νητική βαλβί-
δα και τη
βαλβίδα
ρύθμισης.
Öppna
magnet-
ventilen och
reglerventilen.
Öppna
magnet-
ventilen och
reglerventilen.
Åpne
magnetventil
og regule-
ringsventil.
Åpne
magnetventil
og regule-
ringsventil.
Otevřít
magnetický
a regulační
ventil.
Otevřít
magnetický
a regulační
ventil.
Otworzyć
zawór elektro-
magnetyczny
i zawór
regulacyjny.
Otworzyć
zawór elektro-
magnetyczny
i zawór
regulacyjny.
RVS..F
0
N
2
0
≤ 1,5 × pu max
≤ 1,5 × pu max
≤ 1,5 × p
u max
0
N
2
0
N
2
≤ 1,5 × pu max
0
N
2
≤ 1,5 × pu max
0
3
6
4
78
5
3
6
4
78
5
Open the
solenoid
valve and the
control valve.
Open the
solenoid
valve and the
control valve.
RV, RVS
9 Tightness OK: open the pipeline.
▷Pipeline leaking: replace the seal on the flange.
Then check for tightness once again.
▷Unit leaking: remove the unit and return it to the
manufacturer.

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Commissioning
The minimum and maximum flow rates are adjusted
using two infinitely adjustable switching cams.
▷The maximum opening angle can be set using
switching camN1 and the minimum opening
angle can be set usingN2.
▷ Switching cams N3/N4 can be optionally ad-
justed.
WARNING
Risk of electric shock due to live components and
cables.
Manual mode facilitates setting
21
Toggle switch
Slide switch
 Set the slide switch to Manual mode.
 Voltage must be continuously applied to termi-
nals1 and6 to allow the control valve to open.
 Press the toggle switch upwards.
▷The control valve opens.
4 Press the toggle switch downwards.
▷The control valve closes.
Setting the maximum opening position using
switching camN
▷Only adjust N1 between 60% and 100%.
▷Feedback signal to terminal 2.
▷
N1 can only be accessed when the control valve
is open.
5 Set the control valve to its maximum opening
position.
6 Adjust the trip point of camN1 using a screw-
driver.
▷Anti-clockwise = smaller opening angle.
▷Clockwise = greater opening angle.
N1 = 60 – 100%
N2 = 0 – 40%
CAUTION
Remove the screwdriver again before attempting
to actuate the switching cams.
Setting the minimum opening position using
switching camN
▷Only adjust N2 between 0% and 40%.
▷Feedback signal to terminal 3.
7 Set the control valve to its minimum opening
position.
8 Adjust the trip point of camN2 using a screw-
driver.
Setting intermediate positions using
switching cams N/N4
9 Adjust the trip point of cams N3/N4 using a
screwdriver.
▷ Adjustment is possible within the following range:
N3 between 30% and 100%,
N4 between 0% and 70%.
Readjusting the closed position
If the control valve is not completely closed at 0%,
the closed position can be readjusted.
 Remove the housing cover.
▷The control valve is in the closed position.
▷Undo the centre screw until the valve is closed
and the flow rate has stopped.
▷Then tighten the outer retaining screws simulta-
neously or turn them alternately a little at a time
and as uniformly as possible. The lever may jam
if you tighten first one retaining screw and then
the other.
3
4
2
Tighten the
adjusting
screw.
5 Close the housing.

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Accessories
Installation sets RP RV, RS RV
▷ Older and current versions of installation sets
RP RV and RS RV can be used in older and
current gearboxes.
Installation set RP RV, feedback potentiometer
▷Can only be retrofitted on RV..S1, RVS..S1.
▷ The power consumption of the potentiometer
is max. 0.5 W.
150 Ω
1 kΩ 2x1 kΩ
Installation set for resistance value:
150 Ω: Order No. 74926119,
1 kΩ: Order No. 74926121,
2 x 1 kΩ: Order No. 74926123.
▷ Resistance value of the potentiometer – see
type label.
CAUTION
Please observe the following to ensure that the
actuator is not damaged:
– Adjusting cam N2 to an angle of less than 0% or
camN1 to an angle of over 100% will damage
the potentiometer.
▷The available range depends on the adjustment
of switching cams N1 andN2.
Installation set RS RV, feedback current sensor
▷Can only be retrofitted on RV..S1, RVS..S1.
4 to 20 mA for feedback on the current position of
the control valve.
Rmax = 500
Order No. 74926117
Installing the installation set
 Disconnect the system from the electrical power
supply.
 Shut off the gas supply.
9
6 7
10
8
543
Nase vom
Einbausatz
unter den
Schrauben-
kopf schieben.
Push the
catch of the
installation set
under the
screw head.
Insérer le
crochet du kit
d’installation
sous la tête
de vis.
De neus
van de in-
bouwset
onder de
schroefkop
schuiven.
Spingere il
nasetto del kit
di installazione
sotto alla testa
della vite.
Deslizar el
saliente del
juego de mon-
taje por debajo
de la cabeza
del tornillo.
▷ The pictures below may differ slightly depending
on the installation set.
▷The control valve is in the closed position.
▷ Turn both potentiometers/current sensors as
far as they will go, see Figure 6 , and then turn
them the other way a few teeth, see Figure 7 .
9
6 7
10
8
543
Push the
catch of the
installation set
under the
screw head.
 Wiring, see page5 (RV..S1 connection dia-
gram).
Seal set
▷
We recommend replacing the seals during main-
tenance work.
RV..ML, RVS..ML
B
A
A
D
C
B
C
RV 2..ML, RVS 2..ML: Order No. 74926010
RV 3..ML, RVS 3..ML: Order No. 74926011
Scope of delivery:
A1 x flat seal for pressure test point
B3 x sealing rings for screw plugs
C2 x O-rings for inlet and outlet flanges
D3 x O-rings for guide tube (RVS only)
RV..F, RVS..F
B
A
A
D
C
B
C
RV 40, RVS 40: Order No. 74926012
RV 50, RVS 50: Order No. 74926013
RV 65, RVS 65: Order No. 74926014

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RV 80, RV 100: Order No. 74926015
Scope of delivery:
A2 x flat seals for pressure test points
B1 x O-ring for housing cover
C3 x O-rings for guide tube (RVS40 – 65)
Maintenance
CAUTION
In order to ensure smooth operation, check the
tightness and function of the unit:
– Once per year, twice per year in the case of
biogas; check for internal and external tightness,
see page7 (Tightness test).
– Check electrical installations once a year in line
with local regulations; pay particular attention
to the PEwire, see page4 (Wiring).
 Disconnect the system from the electrical power
supply.
 Shut off the gas supply.
Removing/Replacing the actuator
8
7
43
6
5 Detach the wiring.
8
7
43
6
9 Follow the reverse procedure to install the new
actuator.
▷Wiring, see page4 (Wiring).
Cleaning the strainer
▷If the flow rate has dropped, clean the strainer
in the inlet flange.
RV..ML
4 53
7 86
▷We recommend replacing the seals in the inlet
and outlet.
9 After the strainer has been cleaned, follow the
reverse procedure to reinstall the device in the
pipe.
0 Then check the device for tightness, see
page7 (Tightness test).
RV..F
5
43
6 7
▷We recommend replacing the seal in the upper
housing section.
5
43
6 7
8 After the strainer has been cleaned, follow the
reverse procedure to reassemble the device.
9 Then check the device for tightness, see
page7 (Tightness test).
Removing/Replacing the solenoid actuator
▷The number of retaining screws differs from the
illustration.
RVS..ML: 4 x retaining screws,
RVS..F: 3 x retaining screws.
54
3
6 7
CAUTION
Risk of injury! When removing the parts, remember
that the spring is compressed.
▷Secure removed parts to prevent losing them.

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RVS..ML
10
9
8
RVS..F
10
9
8
RV..ML, RV..F
12
11
▷We recommend replacing all the seals, see Ac-
cessories, page9 (Seal set).
 Once the seals and solenoid actuator have been
replaced, follow the reverse procedure to reas-
semble the device.
4 Gas-filled space has been opened. Therefore,
the upper housing section must be checked for
tightness after assembly.
RVS..ML
N
2
≤ 1,5 × pu max
RVS..F
N
2
≤ 1,5 × p
u max
5 In order to determine whether the device is tight
and closes securely, check the internal and ex-
ternal tightness, see page7 (Tightness test).
▷ Check electrical installations in line with local
regulations; pay particular attention to the PE
wire.
Assistance in the event of
malfunction
WARNING
Attention! Please observe the following to ensure
that no damage occurs:
– Electric shocks can be fatal! Before working
on possible live components, ensure the unit
is disconnected from the power supply.
– Never remove the circuit board!
– Unauthorized repairs or incorrect electrical con-
nections may cause the control element to open
resulting in defects.
? Fault
! Cause
• Remedy
? The control element does not move?
! The actuator is in Manual mode.
• Set the slide switch to Automatic mode, see
page8 (Commissioning).
! Motor coil or electronics defective as a result of
excessive ambient temperature and/or excessive
operating voltage.
• Check ambient temperature and/or operating
voltage, see type label or page12 (Technical
data).
! Electrical fault!
• Remember the minimum distance from ignition
cables.
! DIP switch position is incorrect.
• Set correct input signal using the DIP switches.
! The input signal on the 4–20mA setpoint input
is <4 mA.
• Check input signal, remedy cable discontinuity.
? The motor and drive shaft of the actuator
no longer function as required?
! The gear is defective.
• Remove the unit and return it to the manufacturer.
? Feedback potentiometer or current sensor
indicates incorrect values?
! Potentiometer is moving against its mechanical
stop.
• Install the potentiometer/current sensor installa-
tion set as specified, see page9 (Installing
the installation set).
! Connections on the terminal strip mixed up.
• Check the contact assignment on the terminal
strip.
! Incorrect potentiometer utilization.
• Utilize the potentiometer as a voltage divider.
! The windings in the potentiometer are defective.
• Replace the installation set, see page9 (In-
stalling the installation set).

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? Control element moves constantly?
! Input signal fluctuates.
• Check control loop, if possible attenuate it.
• Increase the hysteresis using potentiometer P3,
see page6 (Input signal).
! 3-point step signal fluctuates.
• Check/adjust the 3-point step controller.
? Is it not possible for the fault to be elimi-
nated with the measures described above?
! Internal error.
• Remove the unit and return it to the manufacturer
for inspection.
Technical data
Ambient conditions
Icing, condensation and dew in and on the unit are
not permitted.
Avoid direct sunlight or radiation from red-hot
surfaces on the unit. Note the maximum medium
and ambient temperatures!
Avoid corrosive influences, e.g. salty ambient air
or SO2.
The unit may only be stored/installed in enclosed
rooms/buildings.
The unit is suitable for a maximum installation
height of 2000m AMSL.
Ambient temperature: -20 to +60°C
(-4 to +140°F).
With optional Viton valve disc seal:
0 to +60°C (32 to 140°F).
Long-term use in the upper ambient temperature
range accelerates the ageing of the elastomer ma-
terials and reduces the service life (please contact
manufacturer).
Transport temperature = ambient temperature.
Storage temperature: -20 to +40°C (-4 to +104°F).
Enclosure: IP 54 pursuant to IEC 529.
This unit is not suitable for cleaning with a high-
pressure cleaner and/or cleaning products.
Mechanical data
Suitable gas types: natural gas, town gas, LPG
(gaseous), biogas (max. 0.1%-by-vol. H2S) and
air.
The gas must be clean and dry in all temperature
conditions and must not contain condensate.
Medium temperature = ambient temperature.
Max. inlet pressure pu max.: 150 to 1000 mbar.
Measuring connections:
RV..ML, RVS..ML: Rp 1/8 on both sides,
RV..F, RVS..F: Rp 1/4 on both sides.
Connection flanges:
RV..ML, RVS..ML: Rp internal thread to ISO7-1,
RV..F, RVS..F: flange to ISO7005, PN16.
Max. tightening torque: 3 Nm on projecting shaft.
Housing: AlSi.
Valve disc seal: Perbunan.
RVS, solenoid actuator:
Solenoid valve (on RVS) with spring-loaded valve
disc, closed when de-energized, ClassA, Group1
to EN161.
Closing time: <1s.
Electrical data
Mains voltage:
230 V AC, -15/+10%, 50/60 Hz,
120 V AC, -15/+10%, 50/60 Hz.
Safety class: I.
RVS, solenoid actuator:
Cable cross-section: max. 2.5 mm2.
Cable gland:
PG 13.5 – apart from RVS 232ML = PG11,
plug with socket to EN175301-803.
Duty cycle: 100%.
Electrical connection:
According to the data table, the electrical power
is identical when switching on and in continu-
ous operation. Power factor of the solenoid coil:
cosφ=1.
RV, RVS, actuator:
Cable cross-section: max. 1.5 mm2.
Cable gland:
RV, RVS: 2 x M20,
RV..E, RVS..E: 3 x M20.
RV..E with integrated positioning control.
The following signal types are processed:
– 0 (4) to 20 mA,
– 0 to 10 V.
Input resistance:
0 (4) to 20 mA: 50Ω (load impedance),
0 to 10 V: 150 kΩ (input resistance).
Running time for 0 to 100% at 50 Hz: 30s and
60s.
Running times are reduced by a factor of 0.83 at
60Hz compared to 50Hz:
Running time [s/90°]
50 Hz 60 Hz
RV..30, RVS..30 30 25
RV..60, RVS..60 60 50
Contact rating of the cam switches:
Voltage Min. current
(resistive load)
Max. current
(resistive load)
24–230 V,
50/60 Hz 1mA 2 A
24 V DC 1mA 100 mA
Typical designed lifetime of the cam switches:
Switching
current
Switching cycles
cos φ = 1 cos φ = 0.3
1mA 1,000,000 –
22 mA1) –1,000,000
100 mA 1,000,000 –
2 A 100,000 –
1)
Typical contactor application (230 V, 50/60Hz,
22mA, cosφ=0.3)

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Air flow rate Q
Air flow rate Q for a pressure loss of Δp=1mbar
(0.4"WC)
∆p 1 mbar (0,4 "WC)
RVS
∆p 1 mbar (0,4 "WC)
RV
M
M
Type Air flow rate
Q [m3/h] Q [SCFH]
RV(S) 232/W 0.7 26.1
RV(S) 232/X 1.2 44.8
RV(S) 232/Y 1.8 67.2
RV(S) 232/Z 2.8 1.5
RV(S) 232/A 3.8 142
RV(S) 232/B 5.2 194
RV(S) 232/C 6.9 258
RV(S) 232/D 10 373
RV(S) 232/E 15 560
RV(S) 350/G 21 784
RV(S) 350/H 30 1120
RV(S) 350/I 42 1568
RV(S)../K 18 672
RV(S)../L 30 1120
RV(S)../M 42 1568
RV../N 59 2203
RV../O 80 2986
RV../S 100 3733
Designed lifetime
This information on the designed lifetime is based on
using the product in accordance with these operating
instructions. Once the designed lifetime has been
reached, safety-relevant products must be replaced.
Designed lifetime (based on date of manufacture) in
accordance with EN 161:
Type Designed lifetime
Switching cycles Time [years]
RVS 2, DN 25 500,000 10
RVS 2, DN 40
RVS 3, DN 50
RVS 3, DN 65
RVS..F
200,000 10
You can find further explanations in the applicable
rules and regulations and on the afecor website
(www.afecor.org).
This procedure applies to heating systems. For
thermoprocessing equipment, observe local regu-
lations.
Logistics
Transport
Protect the unit from external forces (blows, shocks,
vibration).
Transport temperature: see page12 (Technical
data).
Transport is subject to the ambient conditions de-
scribed.
Report any transport damage on the unit or packag-
ing without delay.
Check that the delivery is complete, see page2
(Part designations).
Storage
Storage temperature: see page12 (Technical data).
Storage is subject to the ambient conditions de-
scribed.
Storage time: 6 months in the original packaging
before using for the first time. If stored for longer
than this, the overall service life will be reduced by
the corresponding amount of extra storage time.

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Contact
If you have any technical questions, please contact
your local branch office/agent. The addresses are
available on the Internet or from ElsterGmbH.
We reserve the right to make technical modifications
in the interests of progress.
Elster GmbH
Strotheweg 1, D-49504 Lotte (Büren)
Tel. [phone]
Fax [phone]
[email protected], www.kromschroeder.com
Certification
Declaration of conformity
We, the manufacturer, hereby declare that the prod-
uct RV, RVS with product ID No. CE-0085AR0109
complies with the requirements of the listed Directives
and Standards.
Directives:
– 2014/35/EU – LVD
– 2014/30/EU – EMC
– 2011/65/EU – RoHS II
– 2015/863/EU – RoHS III
Regulation:
– (EU) 2016/426 – GAR
Standards:
– EN 161:2011+A3:2013
– EN 126:2012
The relevant product corresponds to the tested type
sample.
The production is subject to the surveillance proce-
dure pursuant to Regulation (EU) 2016/426 AnnexIII
paragraph3.
Elster GmbH
Scan of the Declaration of conformity (D,GB)– see
www.docuthek.com
Directive on the restriction of the use of
hazardous substances (RoHS) in China
Scan of the Disclosure Table China RoHS2– see
certificates at www.docuthek.com
Eurasian Customs Union
The product RV, RVS meets the technical specifica-
tions of the Eurasian Customs Union.
REACH Regulation
The device contains substances of very high concern
which are listed in the Candidate List of the European
REACH Regulation No. 1907/2006. See Reach list
HTS at www.docuthek.com.
Disposal
Devices with electronic components:
WEEE Directive 0/9/EU – Waste Electrical
and Electronic Equipment Directive
At the end of the product life (number of operat-
ing cycles reached), dispose of the packaging and
product in a corresponding recycling centre. Do not
dispose of the unit with the usual domestic refuse. Do
not burn the product. On request, old units may be
returned carriage paid to the manufacturer in accord-
ance with the relevant waste legislation requirements.
Contact