ESBE GDA311 Serie Mode D'emploi page 3

HYDRAULIC INSTALLATION
SINGULAR INSTALLATION ON THE WALL
Install the appliance on a solid wall.
Choose the correct position for the piping and drilling. Drill the holes in the wall
for your installation purposes. Take care not to damage any electrical wiring or
existing piping.
DETACH PARTS OF THE CIRCULATION UNIT'S INSULATION SHELL
The actuator/controller might be dismounted from the valve and lower insulation
removed from circulation unit to give more space for the installation tools. Do not
change the shaft position of the valve.
1. Remove actuator by pulling.
2. Remove insulation by pulling at the sides.
3a. Fit supply pipes/3b Assemble on manifold.
4. Assemble lower insulation by pressing.
5. Assemble actuator by pressing and listen for "click".
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3a 4
3b 6
8
> >
180º 180º
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0º
10
2
5
»Click
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9
ASSEMBLING OF OUTGOING PIPES:
6. Pull up insulation approx. 7mm.
7. Push insulation forward.
8. Assembling on wall without manifold. Fix the circulation unit on the wall with
the supplied screw and plug. Ensure that the pipes are completely in line and
lock them firmly.
*Please note that to achievebest performance there should be no tilt at all.
WARNING! For all installations, verify that the plugs are suitable for the
kind of wall chosen. Otherwise replace them with a special model. To value the
suitability of the plug please consider the structure of the wall, all the units
connected and the weight of the water.
9. Connect the piping's (steel bracket has the anti rotation function when fitting
the pipes).
WARNING! Equipment might be damaged when incorrect usage of tools.
10. Remount the insulation shell parts, slide insulation back in place and press.
ELECTRIC INSTALLATION
Electric connection of the Circulation Unit depends both on the circulation
pump, actuator and /or controller.
CIRCULATION PUMP 230 VAC, 50HZ:
The circulation pump should be preceded by a multi-pole contact breaker in the
fixed installation. Earth-connection should not be broken.
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N
ACTUATOR:
Actuators supplied with 230 VAC should be preceded by a mulitipole contact
breaker in the fixed installation.
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IF USING LARGER SYSTEMS/CENTRAL REGULATING
Read each product´s instruction manual.
COMMISSIONING CIRCULATION UNIT
WARNING! Before any intervention disconnect the electric mains through
the external mounted switch and depressurise!
WARNING! Depending on the operating status of the circulation pump or
system (fluid temperature), the entire Circulation Unit can become very hot.
Both primary and secondary loops have to be washed in order to remove any
possible mounting residuals.
Check that all connections are fully tightened: it´s important to check all
connections before filling the system in order to avoid leakages or sprays which
may be dangerous for the electric components. Open all shut-off valves and fill
the primary and secondary loop following the instructions for the tank, boiler
etc. During the filling phase recheck that all connections are tightened.
FILLING AND VENTING
Fill the buffer tank and the primary loop with an appropriated liquid, according
to the system instructions, respecting the limits of the components used.
While filling the device, open any vents situated in the circuit. Watch the
system until it reaches its correct operation condition. If pressure is not
enough, adjust the pressure by repeating the above procedure.
To avoid problems with cavitation, fill up the system to get sufficient pressure
head on the suction side of the circulation pump. The minimum pressure
needed depends on the temperature of the fluid. Recommended min pressure
head at fluid temperatures 50/95/110°C is 0,5/4,5/11 m respectively.
To make the filling and venting of the system easier it´s possible to force the
check valve on the return side of the unit, from a closed position Fig. 1 (default) .
to an open position see Fig. 2
closed
After a complete filling and venting, turn the knob on the check valve back to
it´s normal operating position, picture 1 and set the circulation pump operation
to recommended position. See chapter 5 and 6.
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You find more information about the
circulation pump on www.esbe.eu.
You find more information about the
actuator on www.esbe.eu.
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