Table of Contents
Advertisement
7 Start-up
7.13
Filling and purging the heating installation
Preliminary work
▶
Flush the heating installation thoroughly before filling it.
1.
Loosen the cap of the automatic air vent (1) by one to
two rotations and leave it in this position, as the unit
automatically purges itself in this way during operation.
2.
Select the check programme P.06.
◁
The 3-port valve moves to the mid-position, the
pumps do not run and the unit does not switch to
heating mode.
1
3.
Open the air separator (1) and use a hose to connect it
to the drain or a vessel.
4.
Observe the information on the topic of treating
(→ Page 22) heating water.
5.
Connect the heating installation's filling tap on the con-
nection accessory to a heating water supply in accord-
ance with the relevant standards; fit a cold water tap
where possible.
6.
Supply the heating circuit with water.
7.
Open all thermostatic radiator valves.
8.
Check whether the stopcocks for the heating flow and
return are open.
9.
Slowly open the combined filling/draining cock to allow
water to flow into the heating circuit.
10. Purge the highest radiator and wait until water flows out
of the purging valve without bubbles.
11. Purge all other radiators until the entire heating system
has been filled with water.
12. Close the purging valves on the radiators.
13. Close the purging valve for the heating coil return (1)
(water must escape without any air bubbles) and the
filling tap if the pressure is above 1.5.
14. Close the filling/draining cock and the cold water tap.
24
1
Installation and maintenance instructions ecoCOMPACT 0020181421_04
15. Check all connections and the entire system for leaks.
16. To purge the heating installation, select the check pro-
gramme P.00.
◁
The unit does not switch on, the internal pump runs
intermittently and enables the circuit to be purged.
◁
The display shows the filling pressure of the heating
installation.
17. To be able to carry out the purging process properly,
ensure that the heating installation filling pressure is
above the minimum filling pressure.
–
Minimum heating installation filling pressure: 80 kPa
Note
The check programme P.00 runs for 7.5
minutes in the hot water circuit and for 2.5
minutes in the heating circuit.
At the end of the filling procedure, the
filling pressure of the heating installation
should be at least 0.02 MPa (0.2 bar) above
the counter-pressure of the expansion
vessel ("Exp") (P
(0.2 bar)).
18. If there is still too much air in the heating installation at
the end of the check programme P.00, restart the check
programme.
19. Check that all connections are leak-tight.
7.14
Filling and purging the domestic hot water
system
1.
Open the cold-water isolation valve on the product.
2.
Fill the domestic hot water system by opening all the
domestic hot water draw-off valves until water escapes.
3.
Close the hot water taps once the appropriate volume
of water has flowed out.
7.15
Checking and adjusting the gas settings
7.15.1 Checking the gas connection pressure (gas
flow pressure)
1.
Close the gas isolator cock.
≥ P
+ 0.02 MPa
Installation
Exp
Advertisement
Table of Contents
