Metro Therm METROAIR AQUA HPM, Руководство пользователя

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8 Maintenance
To achieve optimal performance, please observe the points below.
Before the unit is opened, disconnect the power/unplug and wait until the fan has stopped.
A few days after the initial setup and start-up, check the installation for leaks in the water installation
or blockage of the condensate drain.
8.1 Environmental requirements
When repairing or dismantling the domestic hot water heat pump please follow the environ-
mental regulations and legal requirements in relation to recycling and disposal of materials.
8.2 Cooling system and fan
Servicing primarily consists of periodic cleaning of the evaporator.
Remove the top part of the unit. This is done by undoing the 2 screws at the top and carefully
lifting away the top part in a vertical movement. Clean the evaporator and fan with a brush or a
bottle brush.
Be careful not to remove balancing weights on the fan wheel during this process, as this will
cause fan imbalance and lead to a higher noise level as well as wear and tear on the fan.
Please observe local rules and regulations regarding potential periodically inspection of the heat
pump by skilled personnel.
8.3 Condensation and condensate drain
Together with inspecting and cleaning of the fan, the condensate tray shall be cleaned of dirt.
Fill water into the condensate tray and check if the water flows freely. If not, then the drain must
be cleaned.
8.4 Water circulation and water tank
8.4.1 Pressure relief valve
Your installer has installed a pressure relief valve near the cold water connection on the do-
mestic hot water tank to protect the water tank against excessive pressures when the domestic
water expands during the heating process.
The back pressure valve (check valve), which is installed in front of the pressure relief valve on
the cold water pipe, prevents water from the tank flowing back into the cold water pipe. There-
fore, the pressure in the water tank rises to the maximum setting of the pressure relief valve and
the pressure relief valve opens. The redundant water discharges. If the pressure relief valve did
not open, the water tank would burst.
The pressure relief valve must operated regularly to remove lime deposits and to verify
that it is not blocked. It is tested by pressing the lever/turning the handle on the pressure relief
valve while checking that water discharges. Damages due to a faulty pressure relief valve are not
covered by the warranty.
Please note that water may drip from the discharge pipe of the pressure-relief valve due to heating
of the water.
Risk of injury from sharp
slats. The slats must not be dam-
aged.
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SW 8 SW 8
8 m m
990300006 BVVP topmondul adskillelse