Start-up 7
0020134823_07 ecoTEC plus Installation and maintenance instructions
21
7.11
Flushing the heating system for the first time
("cold")
Note
Establish suitable connections for correctly filling
the boiler circuit and use a suitable filling device.
Due to the system separation, separate connec-
tions are required for the installation circuit.
1.
Check that all thermostatic radiator valves and both
service valves on the boiler are open.
2.
Select the check programme
P.06
.
◁
The pumps do not run and the product does not
enter heating mode.
3.
Open the filling water supply.
4.
Slowly fill the boiler and the heating installation.
5.
Open all available purging valves in the heating system.
Note
The boiler is equipped with an automatic
air vent. Other measures need to be taken
to allow the heating system to be purged
during filling and during commissioning either
manually or using an automatic air vent.
6.
Connect a hose to the drain valve that is located at the
lowest position in the heating system.
7.
Connect a hose to the boiler's drain valve.
8.
Open these two drain valves so that the water can drain
quickly. Start at the next point in the installation and
open the purging valves on the radiators so that the
contaminated water can completely drain.
9.
Close the drain cocks.
7.12
Filling and purging the heating system
Condition
: The heating installation and the boiler have been rinsed thor-
oughly.
▶
Select the check programme
P.06
.
◁
The pumps do not run and the product does not
enter heating mode.
1.
Proceed in accordance with the information provided on
treating (
→
Page 18) heating water and on the topic of
water hardness (
→
Page 54).
2.
Open the filling water supply.
3.
Check that both service valves on the boiler are open.
4.
Slowly fill the boiler.
5.
Observe the increasing filling pressure in the boiler.
6.
Fill with water until the required filling pressure is
reached.
7.
Close off the filling system but keep ready to top up as
air is expelled during the purging process.
8.
To purge the boiler, select check programme
P.00
.
◁
The boiler does not start up, the external pump op-
erates intermittently and purges either the heating
circuit or the domestic hot water circuit. The display
shows the boiler's filling pressure.
9.
To be able to carry out the purging process properly,
the filling pressure must not fall below the minimum
filling pressure.
–
Minimum filling pressure: 0.1 MPa (1.0 bar)
Note
The check programme
P.00
runs for
7.5 minutes per circuit.
At the end of the filling process, the filling
pressure should be at least 0.02 MPa
(0.2 bar) above the counter-pressure of the
expansion vessel ("Exp") (P
Installation
≥
P
Exp
+
0.02 MPa (0.2 bar)).
10. If there is still too much air in the boiler at the end of the
check programme
P.00
, restart the check programme.
11. Check all connections and the entire system for leak-
tightness (
→
Page 24).
12. Check the expansion relief valve by opening it briefly.
◁
Water escapes from the expansion relief valve.
13. Complete and sign off the Benchmark commissioning
check list and then register the guarantee.
7.13
Filling the condensate trap
Danger!
Risk of poisoning due to escaping flue
gas.
An empty or insufficiently filled condensate
trap may allow flue gas to escape into the
room air.
▶
Fill the condensate trap with water before
starting up the product.
2
1
1.
Remove the lower section of the condensate trap
(2)
by
unscrewing it from the condensate trap
(1)
.
2.
Fill the lower section of the condensate trap with water
up to about 10 mm below the upper edge.
3.
Secure the lower section of the condensate trap cor-
rectly to the condensate trap again.
Summary of Contents for ecoTEC plus 1006 VU GB 1006/5-5
Page 59: ......
