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5 Before installation
5.6
Determining the system volume
Fig.8
Determining the system volume
10000
1
2
3
4
1000
5
100
10
1
10
Qi [kW]
5.7
Practical information for qualified heating specialists
5.8
Use of antifreeze agents with Potterton heat generators
30
5.5.4
Q
i
V
a
1 Underfloor heating
2 Steel radiators
3 Cast iron radiators
4 Steel panel radiators
5 Convectors
The total water volume in the heating system is calculated using the
system volume (= fill water volume) plus the top-up water volume. In the
Potterton boiler-specific diagrams only the system volume is given to make
them easier to read. Over the entire service life of the boiler, a maximum
top-up volume of twice the system volume is assumed.
100
1000
RA-0001109
If an appliance is replaced in an existing system, we recommend
installing a sludge separator, e.g. WAM C SMART (accessory) in the
system return, upstream of the heat generator. Potterton recommends
using the AguaClean filtration module to achieve an optimum cleaning
result, including magnetite deposits.
Document the filling (VDI directive 2035 Sheet 2 Section 4 "Principles").
The Potterton service book must be used for this.
To prevent gas pockets and gas bubbles, it is essential to fully vent the
heat generator at maximum operating temperature.
Offer maintenance contracts for all the equipment in the system.
Check proper operation with regard to pressure maintenance on an
annual basis.
Potterton recommends using of approved systems for initial filling, for
replacing water and for top-ups.
Maintenance
Caution
The quality of the circuit water must be checked and documented
as part of annual system maintenance. Depending on the
measurement result, the necessary measures must be taken in
order to re-establish the required values for the circuit water.
Furthermore, the cause of the changes must be established and
permanently corrected in the event of severe deviations. Warranty
claims are excluded if the specified values are not adhered to or if
documentation is missing.
Rated system output
Average total water content
Important
The use of antifreeze agents with Potterton gas-fired condensing
boilers with aluminium heat exchangers.
7713465 - 05 - 23102019
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