Kieback&Peter MD15-HR, MD15-DA, MD15-C User Manual
MD15-C, MD15-HR and MD15-DA Actuators
For Rxx, RWxx valves and Danfoss RA Series
Application
The MD15-C, MD15-HR and MD15-DA actuators for three-point,
two-point or continuous closed-loop control in zone post-treatment
devices for heating, ventilation and air conditioning systems.
Product Description
MD15-C, MD15-HR, MD15-DA
Q
Content Page
Important Information Regarding Product Safety ..................................................................................................2
MD15-C, MD15-HR and MD15-DA Actuators .......................................................................................................3
Technical Data.....................................................................................................................................................3
Dimensions ..........................................................................................................................................................4
Connection...........................................................................................................................................................5
Valve Installation....................................................................................................................................................6
Mounting and Commissioning the Actuator ...........................................................................................................7
Dismounting the Actuator ....................................................................................................................................11
Manual adjustment ..............................................................................................................................................13
Commissioning ....................................................................................................................................................14
Kieback&Peter GmbH & Co. KG
Tempelhofer Weg 50, 12347 Berlin/Germany
Telefon: +49 30 60095-0, Telefax: +49 30 60095-164
www.kieback-peter.de, info@kieback-peter.com
3.09-20.115-01-EN | 2019-08-12
Product Description
MD15-C, MD15-HR, MD15-DA
Q
Important Information Regarding Product Safety
Safety Instructions
This data sheet contains information on installing and commissioning the product "MD15-C,
MD15-HR, MD15-DA". Each person who carries out work on this product must have read and understood this data sheet. If you have any questions that are not resolved by this data sheet, you can
obtain further information from the supplier or manufacturer.
If the product is not used in accordance with this data sheet, the protection provided will be impaired.
Applicable regulations must be observed when installing and using the device. Within the EU, these
include regulations regarding occupational safety and accident prevention as well as those from the
VDE (Association for Electrical, Electronic & Information Technologies). If the device is used in other
countries, it is the responsibility of the system installer or operator to comply with local regulations.
Mounting, installation and commissioning work on the devices may only be carried out by qualified
technicians. Qualified technicians are persons who are familiar with the described product and who
can assess given tasks and recognize possible dangers due to technical training, knowledge and
experience as well as knowledge of the appropriate regulations.
Legend
!
WARNING
Indicates a hazard of medium risk which can result in death or severe bodily injury if it is not avoided.
CAUTION
Indicates a hazard of low risk which can result in minor or medium bodily injury if it is not avoided.
CAUTION
Indicates a hazard of medium risk which can result in material damage or malfunctions if it is not
avoided.
NOTE
Indicates additional information that can simplify the work with the product for you.
Notes on Disposal
For disposal, the product is considered waste from electrical and electronic equipment (electronic
waste) and must not be disposed of as household waste. Special treatment for specific components
may be legally binding or ecologically sensible. The local and currently applicable legislation must be
observed.
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Page 2 / 14
MD15-C, MD15-HR and MD15-DA Actuators
MD15-DA Small actuator for radiator valves that were
manufactured by Danfoss of the RA-N, RA-FN
or RA-U series
MD15-C Small actuator for valve series D15xx and
W15xx (manufacturer Controlli, series VST and
VMT) that were discontinued in 2003
MD15-HR Small actuator for valve series R15/x and
RW15/x (manufacturer Hora, series 216Z and
316Z) that were discontinued in 11-2015
Technical Data
Nominal voltage AC 24 V ± 10%; 50/60 Hz; DC 24 V ± 10%
Power consumption Dimensioning: 3.7 VA (AC 24 V); 1.7 W (DC 24 V)
Nominal: 2.5 VA (AC 24 V); 1.3 W (DC 24 V)
Switch-on current Max. 10 A for a short time
Control Three-point signal (open/stop/close), two-point signal (open/close) or
Continuous control DC 0(2)..10 V, < 0.5 mA, invertible
Connection Built-in cable
1.5 m; 3 x 0.5 mm
Motor switch-off Actuator spindle: when extending = load-dependent, when retracting =
path-dependent
Display LED display for operating voltage and status
Actuating noise < 28 dB (A)
Positioning stroke MD15-C 6 mm; MD15-HR 9 mm and MD15-DA 3 mm
Positioning time 22 s/mm
Positioning force MD15-C and MD15-HR: nominal 200 N
MD15-DA: nominal 100 N
Position indicator Stroke range scale
Manual adjustment Only when disconnected from the power supply
Socket for hexagon key under the cover nipple on the actuator cover, 4 mm
key socket
Valve exercise Can be switched on
Permissible medium
temperature in the
valve
Ambient temperature 0..50° C
Ambient humidity During operation: 0..85% r.h., non-condensing
Overvoltage category III
Level of contamination
Degree of protection IP54 only with the appropriate installation position (see page 12)
Protection class III
0..120° C
Out of operation: 0..85% r.h., non-condensing
2
Product Description
MD15-C, MD15-HR, MD15-DA
Q
2
Page 3 / 14
3.09-20.115-01-EN | 2019-08-12
Product Description
MD15-C, MD15-HR, MD15-DA
Q
Dimensions
Installation position 360°
Maintenance Maintenance-free
Weight 250 g
- MD15-C, MD15-HR
86,5 48,5
51
M30x1 DIN 13 (MD15-HR)
M30x1,5 DIN 13 (MD15-C, MD15-HE)
- MD15-DA
86,5 48,5
51
60
75
M30x1,5 DIN 13
60
75
18,6
M4
M30x1,5 DIN 13
3.09-20.115-01-EN | 2019-08-12
Ø
25,8
Ø
28,8
Page 4 / 14
Connection
MD15-C, MD15-HR, MD15-DA
- Continuous control
MD15-C, MD15-HR,
MD15-DA
M
1
2
3
BN
BU
0 V AC/DC
24 V AC/DC
Y = 0/2..10 V DC
- Three-point control - Two-point control
GY
Product Description
Q
!
MD15-C, MD15-HR,
MD15-DA
M
1
2
3
BU
BN
GY
0 V AC/DC
24 V AC/DC
CAUTION
Temporary peak loads of up to 10 A may occur when switching on the actuator. Ensure suitability of
switching components (e.g. controller connection) to ensure proper functioning and to avoid malfunctions and damage.
NOTE
The actuation direction can be changed by switching the supply lines to terminals 2 and 3 on the
actuator or by setting DIP switch 3.
0 V AC/DC
24 V AC/DC
MD15-C, MD15-HR,
MD15-DA
M
1
2
3
BU
BN
GY
Page 5 / 14
3.09-20.115-01-EN | 2019-08-12
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