Freestyle FS-80 NG Instruction Manual page 104

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FreeStyle
ALL
33 Maintenance
Actions For Cleaning Of Heat Exchanger
Water Circuit
plastic screw placed next to the Heat exchanger return (6).
system supply (1) and Heat exchanger system return (5).
Tighten the plastic screw placed next to the Heat exchanger
return (6).
NPT Heat exchanger system supply (1) and Heat exchanger
cal conditioners. Use chemical conditioners that are able to
bris, lime scale, sludge, metal oxides and, in low temperature
with system hot and/or cold. The products used must not be
The processing time must be chosen according to the amount
must always be less than the maximum treatment time speci-
washing water with chemical and recover the product in
order to remove the chemical conditioner still present within
Heat exchanger system delivery (1) and Heat exchanger
system return (5) connections.
Reconnect the system piping to 3/4" NPT Heat exchanger
system delivery (1) and Heat exchanger system return (5).
Reconnect the unit to the electrical power supply using the
the boiler.
Refill to correct pressure the Heat exchanger circuit.
104
M -
OUNT GAS FIRED WATER BOILER
(continued)
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Boiler Manual
Procedure for chemical cleaning of DHW
circuit
struction booklet.
Chemical cleaning and maintenance must be carried out by pro-
not carry out any operation on the sealed control parts.
should be carried out in an appropriate manner, in accordance
with current standards.
use suitably treated water in order to avoid possible scaling in
the boiler.
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these fluids provides a guarantee which ensures that its products
prolonged boiler operation with untreated water and/or very hard
Figure 142
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2
1
3 Gas inlet
4
3
5
6
4 Cold water inlet
6
Part number 550-142-850/0115
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