Potterton Gas condensing boiler, Installation, Operation And Maintenance Manual

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5. Installation
5.1 Connecting heating circuit
Connect heating circuit with flat seal parallel screw connections to boiler header
and boiler return.
Shut-off valves have to be installed into the flow and return. To facilitate the as-
sembly, shut-off sets ADH
1)
may be used.
Tip: Installing filter.
It is recommended that a filter be fitted in the heating return. In the case of old
plants, the whole heating plant should be thoroughly flushed before installation.
5.2 Safety valve
In case of open heating plants, connect the safety header and return pipeline; in
case of closed heating plants install the membrane expansion tank.
Caution! The connecting pipe between boiler and safety valve must not be blocka-
ble.
Fitting of pumps and fittings or pipe reducer pieces is not permissible. The blow-
off line of the safety valve must be so designed, that the pressure does not in-
crease as one approaches the safety valve. It must not be led into free space, the
opening must be clear and observable. Heating water that may possibly escape
should be safely drained off.
Caution!
The blow-off line of the safety valve must be so designed, that the pressure does
not increase as one approaches the safety valve. It must not be led into free space,
the opening must be clear and observable. Heating water that may possibly es-
cape should be safely drained off.
5.3 Condensate
A direct run-off of the condensate into the domestic drainage system is only al-
lowed, if the system only comprises corrosion resistant materials (e.g. PP-pipe,
stoneware or similar materials). If this is not the case, Neutralisation Plant must be
installed.
The condensate must be able to flow freely into a tundish. The condensate hose of
the Paramount must be inserted through the opening in the floor. If there is no
run-off facility underneath the condensate discharge, the use of a neutralisation
and syphoning system is recommended.
Caution! Danger of damaging the device!
Fill the condensate discharge in the Paramount with water before commissioning.
For this, fill 0.25 l water in the flue outlet before assembly of the flue gas pipe.
5.4 Sealing and filling of the
plant
- Fill the heating plant via the return of the Paramount (see Technical Data)!
- Check tightness (max.water test pressure 3 bar).
5.5 Flue gas connection
For the operation of the Paramount as gas condensing boiler, the flue gas pipe
should be designed with flue gas temperature under 120°(flue gas pipe type B). A
flue specialist should be contacted for this.
Note: This system has been type-approved and certified as a system by Paramount
DVGW. The enclosed assembly instruction for the exhaust gas pipeline system has
to be observed.
1 ) accessory
Installation
396532 05.11 Paramount three 30-115 kW 25