Ventilation Connection; Silencing; Adjustment Of Ventilation - ComfortZone RX35 User And Installation Manual

ComfortZone RX35/RX50/RX65

6 Ventilation connection

The heat pump is connected to the exhaust and extract air ducts with flexible air
hoses that are extended and freely mounted so that no sharp creases or bends
occur.
After installation, ensure that the air hoses are truly flexible so that no vibrations
can be transmitted to the housing.
The duct system shall be of the lowest density class B. The entire extract duct shall
be diffusion-tight and insulated with at least 50 mm mineral wool, 19 mm "Armaflex"
or equivalent.
The extract air duct must be pulled so that any condensation water can flow back to
the heat pump without water accumulation occurring.

6.1 Silencing

To achieve the lowest noise level, the ventilation system must be equipped with
duct silencers.

6.2 Adjustment of ventilation

For the RX35 / RX50 / RX65 the fan power is set via the display.
This is done in the menu "Advanced settings" see section 14 "Installation
settings".
If the air supply unit T12 is used, its fan strength is also set in the same menu.
It is extremely important that the supply air flow is lower than the
exhaust air flow, otherwise you risk moisture damage and greatly
increased heat consumption. Factory setting of -30% for "T12 supply air
fan core" corresponds to about -10% in supply air flow in relation to
exhaust air flow.
The ventilation flow is determined by the ventilation needs of the house. Too low
airflow gives a poorer indoor climate. Too high airflow result in greater ventilation
losses and more operating costs.
In order to obtain sufficient air exchange in each room the devices need to be
properly positioned and adjusted.
The exhaust air flow should not be less than 100 m³ / h for RX35, 150 m3 / h for
RX50 and 220 m3 / h for RX65 for the heat pump to function properly.
The adjustment must be made by a specialist and a protocol must
be drawn up.
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service & maintenance