Actuator; Integration Of The 3-Way Ball Valve; Hydraulic Connection - GDD DWK 25 Instructions D'installation

2.2

2.2 Actuator

2.2.1 Applications
Control element for actuating the 3-way DWK ball valves. For
controllers with a switching output (2 / 3-point controller).
2.2.2 Project planning and installation
instructions
The EMA DWK actuator is combined with the 3-way DWK ball
valves. The actuator is installed directly on the ball valve and
held in place with a bayonet connector (fastened by turning the
bayonet ring until it locks, without further adjustment). The con-
nection of the actuator shaft with the spindle is made automati-
cally, either by positioning the manual setting to 100% of the ro-
tation angle or by connecting the voltage. The actuator can be
uninstalled by simply opening the bayonet ring and removing the
actuator.
No tools are required for installing the motor on the ball valve.
NOTE
Condensate entry and dripping water etc. along the actuator shaft and
into the actuator must be prevented. It is not permissible to install the
device upside down.
All components of the hydraulic reversing valve must be installed in a dry
and frost-free location.
When the system is initially commissioned, the actuator moves
into position and both devices are connected automatically. No
further adjustments to the settings are required (rotation angle).
NOTE
The correct installation of the ball valve and the actuator can be checked
on the heat pump manager under special functions - system control via
the menu items * primary side / * secondary side / * domestic hot water
pump / * mixer (depending on the application)!
The 3-way ball valve is moved into any desired position by the
actuator shaft when voltage is connected via the cable.
NOTE
The set time of the mixer is 120 seconds! Observe the settings in the heat
pump manager!
The crank handle is fixed to the actuator. To actuate the crank
handle (which has a square end hole for the spindle), the manual
setting button on the actuator must be pushed downwards. The
actuator will not operate until this button is moved back into the
upper position.
EN-4
NOTE
When insulating the fittings, special care must be taken to ensure that the
flange that holds the actuator is not insulated.
If it is installed outside a building, the actuator must also be protected
from the effects of the weather.
3 Integration of the 3-way
ball valve

3.1 Hydraulic connection

When installing a ball valve, ensure that the ball is in the correct
position for flow to occur. The installation position depends on
the purpose for which the ball valve is being installed in the sys-
tem.
The ball can be rotated by 360°, and the flow should ideally orig-
inate from the side on which the characteristic curve notch is lo-
cated.
ATTENTION!
The notch on the locating bolt indicates the position of the ball valve. This
notch must be observed when installing the actuator!
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