Installation 5
0020239015_05 ecoTEC plus Installation and maintenance instructions
11
5.3
Heating water supply in the open heating
system
▶
Connect the product to a supply/expansion tank as
shown in the figure.
–
The tank must not be more than 27 m (90 ft) above
the product.
–
The open vent pipe must be installed with an upward
gradient and must not be blocked.
–
Supply line diameter:
≥
15 mm
–
The relative positions of the pump, supply and open
vent pipe must be as shown in the figure.
Conditions
: Combined supply and open vent pipe
▶
Install the line in accordance with "BS 5449".
–
Diameter:
≥
22 mm
5.4
Purging the liquid gas tank
If the liquid gas tank is not purged properly, this may result in
ignition problems.
▶
Ensure that the liquid gas tank has been purged properly
before installing the product.
▶
If required, contact the filler or the liquid gas supplier.
5.5
Using the correct gas type
Using the incorrect gas type may cause fault shutdowns in
the product. Ignition and combustion noise may occur in the
product.
▶
Only use the gas type listed on the data plate.
5.6
Connecting the heating flow and heating
return
2
1
1
Heating return connec-
tion
2
Heating flow connection
1.
Establish the heating connections in accordance with
the applicable standards.
2.
Check whether the connections (
→
Page 19) are leak-
tight.
5.7
Gas connection
1
1.
Establish the gas connection
(1)
in accordance with the
applicable standards.
2.
Purge the gas line before start-up.
3.
Check the entire gas line properly for leak-tightness.
