Pipework Connections, Manifold Kits, Pump Selection - Hamworthy Milborne 500 Series Design Installation, Commissioning And Operating Instructions

7.0 Pipework Connection
System Cleaning
This preventive measure is absolutely required
whenever a heat generator needs to be replaced in
existing systems, but it is in any case recommended
also on new systems, in order to remove any waste,
dirt, working residues, etc.
To clean the system, if the old generator is still
present in the system, it is advisable to:
◊
Add a descaling solution, such as FERNOX
Superfloc at 2% concentration to the system
water volume.
◊
Have the system operate with the circulating
pump for approximately 7 days.
◊
Discharge the system's dirty water and wash
once or several times using clean water. If the
system is very dirty, repeat the last procedure
until clean.
Example of a Milborne installation using a primary circuit with domestic hot water and single
heating circuit.
*
See note below Pipework Schematic No. 2 regarding pump control
Figure 7.1 - Pipework Schematic No. 1
HAMWORTHY HEATING LTD
Pump the water + additive through the system for
approximately 7 days and perform a final wash as
described in the previous paragraph.
At the end of cleaning operations, before installing
the boiler, it is advisable to add corrosion inhibitor
FERNOX MB-1 AT 4% concentration to the system
water volume
7
MILBORNE 500 SERIES 500001130/A