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OMNIA SW-T 3.2
7.4.3 Heat insulation
In order to avoid the release of cold or heat from the connecting pipeline to the external environment during the operation of the equipment, please take effective
1) The gas side pipe should use closed cell foamed insulation material, which the fire-retardant is B1 grade and the heat resistance over 120 °C.
3) Please use heat-insulating materials to do the heat insulation without clearance for the connecting parts of the indoor unit pipes.
7.4.4 Refrigerant amount to be added
Calculate the added refrigerant according to the diameter and the length of the liquid side pipe of the outdoor unit/indoor unit connection.
If the length of the liquid side pipe is less than 15 meters it is no need to add more refrigerant ,so than calculating the added refrigerant the length of the liquid side
pipe must subtract 15 meters.
Refrigerant to be added
Total additional refrigerant
7.5 Hydraulic connections
CAUTION
The safety valve outlet must be connected to a funnel or collection pipe to prevent water spurting onto the floor in case of overpressure in
the heating circuit. Otherwise, if the discharge valve cuts in and floods the room, the manufacturer cannot be held liable.
NOTE
For the correct operation of the system, a hydraulic bypass must be provided on the system capable of ensuring sufficient water circulation to avoid the
This is, for example, essential if the system includes zone valves or thermostatic valves which, if they go into partial or complete closure, would result in
The water may drip from the discharge pipe of the pressure-relief device and that this pipe must be left open to the atmosphere.
Before installation, flush all the pipes of the system thoroughly to remove any residuals or impurities that could affect proper operation of the unit.
In case of replacement of generators in existing installations, the system must be completely emptied and cleaned of any sludge and pollutants. For that
purpose only use suitable guaranteed products for heating systems (see next section), that do not harm metals, plastics or rubber.
The manufacturer declines any liability for damage caused to the generator by failure to properly clean the system.
Since the joints of the unit are made of brass and brass is an easily deformable material, using appropriate tools for connecting the hydraulic circuit,
inappropriate tools will cause damage to the pipes.
7.5.1 Antifreeze plant, antifreeze fluids, additives and inhibitors
cause damage to the exchanger or other components and/or materials of the boiler/heat pump and plant. Do not use generic antifreeze fluids, additives or inhibitors
heat exchanger or other components and/or materials of the boiler and plant.
Recommended chemical conditioners:
SENTINEL X100 and SENTINEL X200
FERNOX F1 and FERNOX F3
NOTE
It is advisable to install a magnetic dirt separator filter on the system water inlet pipe.
It is advisable to install a polyphosphate dispenser on the DHW domestic water inlet pipe.
The presence of deposits on the indoor unit exchange surfaces due to non-compliance with the above requirements will involve non-recognition of the
warranty.
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Cod. 354M000010 - Rev. 03 - 06/2023
Total liquid pipe length L (m)
0g
0g
>15m
(L-15)×20g
(L-15)×38g
EN
95
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