gassero Wallcon X-treme 67, Installation And User Manual, Page: 43 / 44

Gassero
is strictly advising to use water softening unit and apply flushing process in the whole installation before the commissioning
for long term usage. Water quality conditions which are mentioned below have to be followed during the life time of the boiler. It is
strictly advising to use plate heat exchanger if there is a underfloor heating system in the installation. Boilers which will be
commissioned and used in outdoor have to follow required conditions. Otherwise, system could harm because of the undesirable
substances and in these cases the boiler could be considered out of warranty.
Manufacturer is not liable for harmes that may arise from improper usage and installations.
Water Condition Range
Total Hardness
°d
pH
(Aluminum)
pH
(Stainless)
Iron
(Not Diluted)
Condunctivity Flushing
1 6,5-8,5 7,5-9,5 <10ppm ≤2000µS/cm
It is mandatory to comply with BSRIA
7593 (See: Gassero Flushing Process)
Nitrided protection must not be used in boilers with aluminum heat exchangers
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As GASSERO, we recommend flushing process in the installation to prolong the life time of the installation and boilers. Acid-based products must not be used
during flushing.
Boiler maintenances must be made annually by authorized services. Water values and the water softening unit values (resin, salt etc.) must be measured and
maintained during these maintenances.
If the water conditions out of specified values in the table above, problems that may occur in heat exchanger could be consider out of warranty.
Water will be used in the installation must be city-water.
Never use well-water.
During the assembly and installation operations Gassero sample schemes have to be taken in to account.
Boiler (primary) pump must be selected to in accordence with the required power and flow rate.
The boiler (primary) pump must be placed on the return line of the boiler (pump has to supply the water to the boiler).
Installation operating pressure should meet with the working pressure of boiler.
All heat exchanger manufacturers; recommends to use of plate exchanger instead of the hydraulic seperator for seperate the primary circuit and the secondary
circuit.
Domestic waste system could be used for condensate water. In system with a total power of 200 KW and above, a neutralization tank must be used.
Boiler outlet and inlet diameters must be strictly followed and other equipments must be selected in accordance with these diameters. In order to install other
equipments connections must not be reduced more than 2 calibers in accordence with KVS factor.
For each boiler it is mandatory to use an appropriate diameter filter and check valve on the return line of the boiler.
For floor standing boilers’ collector connection details please contact with GASSERO service department.
Additional zone control modules and sensors have to be requested if equipments such as three-way valves and DHWs are placed and will be controlled on the
heating collector. Please contact GASSERO for more information.
Air and dirt seperators must be used with hydraulic seperator.
In case of the plate heat exchanger will be used instead of the hydraulic seperator as the main separator, expansion tank must be placed in the primary circuit.
If an automatic filling valve will be used in the installaiton, a water meter must be used for water tracking.
In cascade systems, the sensor housing must be placed on the hydraulic separator or on the secondary circuit supply line. If the system will be separated by a
plate heat exchanger, place the sensor housing on the secondary circuit supply line.
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6A fuses must be used for the power supply of the boilers. Electrical installation must be grounded.
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Chimney connections must be made in accordance with the chimney types and regulations which are mentioned in the boiler certificates.
The flue gas analysis measuring probe (probe hole) must be opened by the authorized flue companies for each boiler.
Boiler chimneys could be extended by a minimum 1 meter from the boiler flue outlet direction and then connected to the chimney collector with or without
elbows.
If the chimney connections passes over the boiler, the connections must be checked properly and water tightening must be provided. Otherwise damages
which are caused by these leakages will be considered out of warranty. Adequate ventilation should be provided inside the boiler room.
The operating pressure of the boilers for the natural gas is 21 Mbar. Therefore, it is necessary to use a regulator on the gas line. There should be a minimum
distance of 2 meters between the regulator and gas flange. There should be a discharge line after the regulator for discharge of the excess air.
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In order to control the gas pressures, the manometer must be fitted before and after the regulator.
GASSERO boilers are manufactured for heating and domestic heating water applications. They are not suitable for commercial or industrial purposes.
GASSERO
shall not be held responsible for any problems arising out of the design purposes.
17 BOILER ROOM APPLICATION RECOMMENDATIONS
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