GB
40
• Bleed it daily until there is no air during the subsequent weeks.
• If noises (air bubbles) can be heard in the heat exchanger.
• When the pressure in the domestic water supply has been adjusted.
6.4 CLEANING THE WATER HEAT EXCHANGER SENSO M
H2O / PIKO H2O
Cleaning the water heat exchanger is essential. With regular and proper mainte-
nance, the stove can deliver its full potential. Cleaning must always be executed
in cooled-down status!
The water heat exchanger should be cleaned once daily, or each time the
ash drawer is emptied, once it has cooled down.
Regular operation of the
cleaning system prevents the system from seizing.
If after the first cleaning operations, it is noticeable that little to no deposits were
removed, this means that you can extend the cleaning interval for your operating
conditions. If, on the other hand, heavy deposits are found during cleaning, then
cleaning must be carried out more frequently and the cleaning interval must be
shortened.
If the cleaning mechanism can only be operated with increased force after
prolonged operation, this is an indication of disproportionate contamination of
the water heat exchanger. In this case, please check the moisture content of
the fuel (< 20 %) and make sure that the heating integration works properly
(min return temperature > 62°C). If you are not sure that these conditions have
been complied with, please contact your installer for heating installations. When
inserting the operating handle, ensure that it does not hit the painted edges!
The soot discharged by cleaning automatically falls onto the baffle plate in the
combustion chamber and should be cleaned off from there at least 2 times per
season.
SENSO M H
2
O
Because the water heat exchanger cools down the flue gases of the Senso
6.3.2 MAINTENANCE OF THE WATER HEAT
EXCHANGER SENSO M H
2
O / PIKO H
2
O
Maintenance of Senso M H
2
O / Piko H
2
O is essential The Senso M H
2
O / Piko
H
2
O can only function at full efficiency if it is regularly and properly serviced.
The technical heating inspection and checking of all safety devices (thermal
discharge safety device, safety valve, etc.) and of the other components, such
as the pump thermostat, is required yearly before the heating season. The
inspection must be carried out by a specialist company. We recommend that you
conclude a maintenance contract with your specialised company. The annual
safety inspection is carried out reliably before the heating season. All annual
safety inspections must be documented!
6.3.3 VENTING THE WATER HEAT EXCHANGER SENSO M
H
2
O / PIKO H
2
O
SENSO M H
2
O
The vent is located behind the upper cladding door. The bleeder can be opened
with the supplied bleed key.
Bleeding the system:
• Before commissioning and again after the first operating days.
• If noises (air bubbles) can be heard in the heat exchanger.
• When the pressure in the domestic water supply has been adjusted
Piko H
2
O
The bleeder is located under the ash drawer in the lower compartment. The
bleeder can be opened with the supplied bleed key. There should be an appro-
priate collecting vessel or a large cloth kept ready for collecting the escaping
water. A small tube can also be inserted on the bleeder. When opening the valve,
water initially emerges from the bleed line and then air afer a few seconds. After
the air has escaped, leave the valve fully open for a further five seconds.
Bleeding the system:
• Before and during initial commissioning
