Gas Connection; Check Tightness; Purging The Gas Line; Factory Settings - Potterton EC three 125 Installation, Operation And Maintenance Manual

5.5 Gas connection

5.6 Check tightness

5.7 Factory settings

7308536-02 06.13
Modell
EC three 125
EC three 170
EC three 215
EC three 260
EC three 300
These lengths only apply to single boilers. For more elbows the following deduc-
tions should be made:
1 x elbow 87°: 5 m
1 x elbow 45°: 2 m
For installation of multiple boilers, a flue specialist should be instructed to assist.
Standards
Flue systems should meet the applicable sections of:
- BS6644.
- CIBSE Applications Manual AM14 Non-Domestic Hot Water Heating Systems
- Clean Air Act 1993
- the current Building Regulations must also be strictly observed
The boiler should be installed in accordance with BS6644 with respect to protect-
ing the boiler from damage, air for combustion and ventilation, discharge of prod-
ucts of combustion, clearances for service and access, temperatures, noise levels,
the disposal of boiler water and the effects of flooding of the boiler house.
The gas side connection must only be carried out by an approved heating special-
ist. For the gas side installation and setting, the factory setting data of the equip-
ment and optional label should be compared with the local supply conditions.
An approved thermally activated shut-off device has to be installed.
In case of regionally existing old gas pipes, the installation of a gas filter is recom-
mended.
Residues in pipes and pipe joints should be removed.
Danger! Danger of life from gas!
The entire gas inlet pipe, particularly the joints must be checked for leakages be-
fore commissioning.

5.6.1 Purging the gas line

The gas line has to be purged before commissioning. For this, open the measuring
nozzle for the connecting pressure and purge by observing the safety precautions.
Check for tightness of the connection after purging!
The set gas type can be seen on the affixed label on the burner. The data, set by
the manufacturer, has to be checked with the local supply conditions before insta-
lation of the EuroCondense three. The gas pressure controller of the gas valve has
been sealed.
Condensing gas boiler Eurocondense three125-300 kW
Flue Size Maximum Flue Length
incl. one 87° elbow
Ø 160 mm 60 m
Ø 160 mm 50 m
Ø 200 mm 60 m
Ø 200 mm 60 m
Ø 200 mm 60 m
Installation
35