06
NOTE
The above curves are the water resistance of this
product under different flow rates, all resistance of the
whole water system should not exceed the head of the
pump
NOTE
• The total system (Indoor unit and outdoor unit) is
designed for combination with a domestic hot water
tank. In case another tank is being
• Used in combination with the indoor unit, we
cannot guarantee neither good operation nor reliability
of the system. For those reasons we cannot give
warranty of the system in such case.
• Only this tank can be used in combination with the
solar kit option.
• Domestic hot water quality must be according to
EN directive 98/83 EC.
• A drain device should be installed on the cold water
connection on the domestic hot water tank.
• It is important that the storage capacity of the
domestic hot water tank meets normal daily fluctuations
in consumption of domestic hot water without any fall
of the water outlet temperature during use.
• Immediately after installation, the domestic hot
water tank must be flushed with fresh water. This
procedure must be repeated at least once a day the
first 5 consecutive days after installation.
CAUTION
For safety reasons, it is not allowed to add ethylene
glycol to the water circuit. Adding ethylene glycol
might lead to contamination of the domestic water if a
leakage would occur in the heat exchanger coil.
• In case of limited consumption of domestic hot water.
• e.g. At holiday residences or at houses that are
occasionally not occupied, the domestic hot water tank
installation must be fitted with a circulation pump.
• The circulation pump can be time-controlled.
• The circulation pump must operate to circulate the
complete volume of the domestic hot water tank 1.5 times
per hour.
• And the circulation pump must operate or be
programmed for operation. during 2 uninterrupted hours
per day at least.
Fig.6-3
1.Cold water connection
2.Hot water connection
3.Circulation pump (field
supply)
4.Non-return valve
In case of very long field water piping between the
domestic hot water tank and the hot water end point
(shower, bath, etc.) it can take more time before the hot
water from the domestic hot water tank reaches the hot
water end point.
Fig.6-4
1
2
1.Shower
2.Recirculation pump
If required connect a recirculation pump in between the
hot water end point and the outlet pipe in the domestic hot
water tank.
6.1 Main components
Fig.6-5
6
5
4
3
2
1
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