Heat Insulation; Refrigerant Amount To Be Added; Hydraulic Connections; Antifreeze Plant, Antifreeze Fluids, Additives And Inhibitors - Ferroli OMNIA S 3.2 Installations- Und Bedienungsanleitung

OMNIA S 3.2

7.5.3 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
insulation measures for the gas pipe and liquid pipe separately:
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.
2) When the external diameter of copper pipe≤Φ12.7mm, the thickness of the insulating layer at least more than 15mm; When the external diameter of copper
pipe≥Φ15.9mm, the thickness of the insulating layer at least more than 20mm.
3) Please use heat-insulating materials to do the heat insulation without clearance for the connecting parts of the indoor unit pipes.

7.5.4 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 pipe on the liquid side is less than 15 meters, there is no need to add more refrigerant.
Refrigerant amount to be added

7.6 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
blocking of the heat pump due to lack of water flow alarm.
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
a reduction / lack of water flow with consequent water flow switch alarm and therefore the blocking the heat pump.
The water may drip from the discharge pipe of the pressure-relief device and that this pipe must be left open to the atmosphere.
The pressure-relief device is to be operated regularly to remove lime deposits and to verify that it is not blocked.
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 fittings of the indoor unit are brass and brass is a material that deforms easily, use suitable tools to connect the hydraulic circuit. Unsuitable
tools may damage the pipes.
Make the connections to the respective points (see "fig. 3 - dimensional data and connections" on page 87) and to the symbols given on the unit.

7.6.1 Antifreeze plant, antifreeze fluids, additives and inhibitors

When necessary, antifreeze fluids, additives and inhibitors can be used only if the manufacturer of such fluids or additives guarantees that they are suitable and do not
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
that are not specific for use in heating systems and compatible with the materials of the boiler/heat pump and plant.
Only use conditioners, additives, inhibitors and antifreeze liquids declared by the producer suitable for use in heating systems and that do not cause damage to the
heat exchanger or other components and/or materials of the boiler and plant.
Chemical conditioners must ensure complete deoxygenation of the water, contain specific protection for yellow metals (copper and its alloys), anti-fouling agents for
scale, neutral pH stabilizers and, in low-temperature systems, specific biocides for use in heating systems.
Recommended chemical conditioners:
SENTINEL X100 and SENTINEL X200
FERNOX F1 and FERNOX F3

7.6.2 Water filter

It is mandatory to install at the inlet of the unit the Y-shape water filter (supplied with the unit).
NOTE
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.
System model
4/6
08/10/2012/14/16/12T/14T/16T
Cod. 3541V941 - Rev. 04 - 05/2022
Total length of liquid pipe L (m)
≤15m
0g
0g
>15m
(L-15)×20g
(L-15)×38g
95
EN