Installation Minimum installation area (Amin) For indoor units of the NIMBUS PLUS S NET R32 system, minimum installation areas must be guaranteed in relation to the quantity of refrigerant. – For the system with a total refrigerant charge below or equal to 1.84 kg, there are no limitations. – For systems with a total refrigerant charge exceeding 1.84 kg, the indoor unit can be installed in a non-ventilated room provided that the minimum area of the installation room and the minimum opening area are guaranteed. Refer to the following table. To determine the minimum installation area: 1 Two parameters are necessary: the total refrigerant charge Mc [kg] and the unit’s installation height h [m] – Mc = base charge + additional charge due to the installation of long pipes. – h is the height from the floor to the base of the unit’s panel. 2 Cross-reference the data of the table to find the minimum surface (Amin) of the installation room. Amin [m 2 ] Mc h [m] [kg] 1,1 1,2 1,3 1,4 1,5 1,6 1,7 1,88 7 7 6 6 5 5 5 1,96 8 7 7 6 6 5 5 2,04 8 7 7 6 6 6 5 2,12 8 8 7 7 6 6 5 2,2 9 8 7 7 6 6 6 2,28 9 8 8 7 7 6 6 2,36 9 9 8 7 7 6 6 2,44 10 9 8 8 7 7 6 2,52 10 9 8 8 7 7 6 2,6 10 9 9 8 8 7 7 a Example Initial data: An installation area smaller than the suggested values is not allowed by the applicable standards. – Mc = 2,2 kg – h = 1.2 m Amin = 8 m 2 For this installation, we recommend having a room that measures at least 8 m 2 . Minimum aperture area (ANV min) a It is necessary to have a minimum opening for the natural ventilation of the installation room. To determine the minimum aperture area: 1 Three parameters are necessary: the total refrigerant charge Mc [kg], the unit’s installation height h [m] and the installation area A [m 2 ] – Mc = base charge + additional charge due to the installation of long pipes. – h is the height from the floor to the base of the unit. – A is the surface area of the installation room. If the value of A falls between the two values shown in the table, consider the lowest value. 2 Cross-reference the data of the tables to find the minimum aperture area (ANVmin) of the installation room. Minimum aperture area referred to the installation height = 1,1 m ANV min [cm 2 ] h = 1,1 m Mc A [m2] [kg] 7 8 9 10 11 15 20 1,88 67 33 -- -- -- -- -- 1,96 na 58 25 -- -- -- -- 2,04 na 84 51 18 -- -- -- 2,12 na 109 77 45 12 -- -- 2,2 na na 103 72 40 -- -- 2,28 na na 130 99 68 -- -- 2,36 na na 156 126 95 -- -- 2,44 na na na 153 123 -- -- 2,52 na na na 180 151 32 -- 2,6 na na na 207 178 62 -- na not applicable -- minimum opening area unnecessary Minimum aperture area referred to the installation height = 1,2 m ANV min [cm 2 ] h = 1,2 m Mc A [m2] [kg] 7 8 9 10 11 15 1,88 20 -- -- -- -- -- 1,96 43 6 -- -- -- -- 2,04 67 31 -- -- -- -- 2,12 na 55 20 -- -- -- 2,2 na 80 45 10 -- -- 2,28 na 104 70 36 -- -- 2,36 na na 95 62 29 -- 2,44 na na 121 88 55 -- 2,52 na na 146 114 81 -- 2,6 na na 171 140 108 -- na not applicable -- minimum opening area unnecessary 22 / EN

Installation Minimum aperture area referred to the installation height = 1,3 m ANV min [cm 2 ] h = 1,3 m Mc A [m2] [kg] 6 7 8 9 10 15 1,88 23 -- -- -- -- -- 1,96 na -- -- -- -- -- 2,04 na 21 -- -- -- -- 2,12 na 44 6 -- -- -- 2,2 na 67 29 -- -- -- 2,28 na na 53 16 -- -- 2,36 na na 76 40 -- -- 2,44 na na 100 64 28 -- 2,52 na na 123 88 53 -- 2,6 na na na 112 78 -- na not applicable -- minimum opening area unnecessary Minimum aperture area referred to the installation height = 1,6 m Mc [kg] ANV min [cm 2 ] h = 1,6 m A [m2] 5 6 7 8 9 1,88 10 -- -- -- -- 1,96 29 -- -- -- -- 2,04 na -- -- -- -- 2,12 na -- -- -- -- 2,2 na -- -- -- -- 2,28 na 17 -- -- -- 2,36 na 37 -- -- -- 2,44 na na 6 -- -- 2,52 na na 77 -- -- 2,6 na na na 56 -- na not applicable -- minimum opening area unnecessary Minimum aperture area referred to the installation height = 1,4 m ANV min [cm 2 ] h = 1,4 m Mc A [m2] [kg] 5 6 7 8 9 10 1,88 na -- -- -- -- -- 1,96 na -- -- -- -- -- 2,04 na 28 -- -- -- -- 2,12 na na -- -- -- -- 2,2 na na 23 -- -- -- 2,28 na na 45 5 -- -- 2,36 na na 67 28 -- -- 2,44 na na na 50 12 -- 2,52 na na na 73 35 -- 2,6 na na na 96 58 -- na not applicable -- minimum opening area unnecessary Minimum aperture area referred to the installation height = 1,7 m Mc [kg] ANV min [cm 2 ] h = 1,7 m A [m2] 5 6 7 7 1,88 -- -- -- -- 1,96 -- -- -- -- 2,04 20 -- -- -- 2,12 39 -- -- -- 2,2 na -- -- -- 2,28 na -- -- -- 2,36 na -- -- -- 2,44 na 22 -- -- 2,52 na 41 -- -- 2,6 na na 8 -- na not applicable -- minimum opening area unnecessary Minimum aperture area referred to the installation height = 1,5 m ANV min [cm 2 ] h = 1,5 m Mc A [m2] [kg] 5 6 7 8 9 10 1,88 39 -- -- -- -- -- 1,96 na -- -- -- -- -- 2,04 na -- -- -- -- -- 2,12 na 12 -- -- -- -- 2,2 na 33 -- -- -- -- 2,28 na na -- -- -- -- 2,36 na na 24 -- -- -- 2,44 na na 46 -- -- -- 2,52 na na 67 26 -- -- 2,6 na na na 48 8 -- na not applicable -- minimum opening area unnecessary Example Initial data: – Mc = 2,2 kg – h = 1.2 m – A = 8 m 2 ANV min=80 cm 2 For this installation, we recommend arranging an opening area for ventilation of at least 80 cm 2 a a a The ventilation openings must be free from obstructions. The conduits connected to the appliance must not contain potential sources of ignition. Maintenance must be carried out only as indicated by the manufacturer. 23 / EN

Installation Minimum installation area (Amin) For indoor units of the NIMBUS PLUS S NET R32 system, minimum installation areas must be guaranteed in relation to the quantity of refrigerant. – For the system with a total refrigerant charge below or equal to 1.84 kg, there are no limitations. – For systems with a total refrigerant charge exceeding 1.84 kg, the indoor unit can be installed in a non-ventilated room provided that the minimum area of the installation room and the minimum opening area are guaranteed. Refer to the following table. To determine the minimum installation area: 1 Two parameters are necessary: the total refrigerant charge Mc [kg] and the unit’s installation height h [m] – Mc = base charge + additional charge due to the installation of long pipes. – h is the height from the floor to the base of the unit’s panel. 2 Cross-reference the data of the table to find the minimum surface (Amin) of the installation room. Amin [m 2 ] Mc h [m] [kg] 1,1 1,2 1,3 1,4 1,5 1,6 1,7 1,88 7 7 6 6 5 5 5 1,96 8 7 7 6 6 5 5 2,04 8 7 7 6 6 6 5 2,12 8 8 7 7 6 6 5 2,2 9 8 7 7 6 6 6 2,28 9 8 8 7 7 6 6 2,36 9 9 8 7 7 6 6 2,44 10 9 8 8 7 7 6 2,52 10 9 8 8 7 7 6 2,6 10 9 9 8 8 7 7 a Example Initial data: An installation area smaller than the suggested values is not allowed by the applicable standards. – Mc = 2,2 kg – h = 1.2 m Amin = 8 m 2 For this installation, we recommend having a room that measures at least 8 m 2 . Minimum aperture area (ANV min) a It is necessary to have a minimum opening for the natural ventilation of the installation room. To determine the minimum aperture area: 1 Three parameters are necessary: the total refrigerant charge Mc [kg], the unit’s installation height h [m] and the installation area A [m 2 ] – Mc = base charge + additional charge due to the installation of long pipes. – h is the height from the floor to the base of the unit. – A is the surface area of the installation room. If the value of A falls between the two values shown in the table, consider the lowest value. 2 Cross-reference the data of the tables to find the minimum aperture area (ANVmin) of the installation room. Minimum aperture area referred to the installation height = 1,1 m ANV min [cm 2 ] h = 1,1 m Mc A [m2] [kg] 7 8 9 10 11 15 20 1,88 67 33 -- -- -- -- -- 1,96 na 58 25 -- -- -- -- 2,04 na 84 51 18 -- -- -- 2,12 na 109 77 45 12 -- -- 2,2 na na 103 72 40 -- -- 2,28 na na 130 99 68 -- -- 2,36 na na 156 126 95 -- -- 2,44 na na na 153 123 -- -- 2,52 na na na 180 151 32 -- 2,6 na na na 207 178 62 -- na not applicable -- minimum opening area unnecessary Minimum aperture area referred to the installation height = 1,2 m ANV min [cm 2 ] h = 1,2 m Mc A [m2] [kg] 7 8 9 10 11 15 1,88 20 -- -- -- -- -- 1,96 43 6 -- -- -- -- 2,04 67 31 -- -- -- -- 2,12 na 55 20 -- -- -- 2,2 na 80 45 10 -- -- 2,28 na 104 70 36 -- -- 2,36 na na 95 62 29 -- 2,44 na na 121 88 55 -- 2,52 na na 146 114 81 -- 2,6 na na 171 140 108 -- na not applicable -- minimum opening area unnecessary 22 / EN

Installation Minimum aperture area referred to the installation height = 1,3 m ANV min [cm 2 ] h = 1,3 m Mc A [m2] [kg] 6 7 8 9 10 15 1,88 23 -- -- -- -- -- 1,96 na -- -- -- -- -- 2,04 na 21 -- -- -- -- 2,12 na 44 6 -- -- -- 2,2 na 67 29 -- -- -- 2,28 na na 53 16 -- -- 2,36 na na 76 40 -- -- 2,44 na na 100 64 28 -- 2,52 na na 123 88 53 -- 2,6 na na na 112 78 -- na not applicable -- minimum opening area unnecessary Minimum aperture area referred to the installation height = 1,6 m Mc [kg] ANV min [cm 2 ] h = 1,6 m A [m2] 5 6 7 8 9 1,88 10 -- -- -- -- 1,96 29 -- -- -- -- 2,04 na -- -- -- -- 2,12 na -- -- -- -- 2,2 na -- -- -- -- 2,28 na 17 -- -- -- 2,36 na 37 -- -- -- 2,44 na na 6 -- -- 2,52 na na 77 -- -- 2,6 na na na 56 -- na not applicable -- minimum opening area unnecessary Minimum aperture area referred to the installation height = 1,4 m ANV min [cm 2 ] h = 1,4 m Mc A [m2] [kg] 5 6 7 8 9 10 1,88 na -- -- -- -- -- 1,96 na -- -- -- -- -- 2,04 na 28 -- -- -- -- 2,12 na na -- -- -- -- 2,2 na na 23 -- -- -- 2,28 na na 45 5 -- -- 2,36 na na 67 28 -- -- 2,44 na na na 50 12 -- 2,52 na na na 73 35 -- 2,6 na na na 96 58 -- na not applicable -- minimum opening area unnecessary Minimum aperture area referred to the installation height = 1,7 m Mc [kg] ANV min [cm 2 ] h = 1,7 m A [m2] 5 6 7 7 1,88 -- -- -- -- 1,96 -- -- -- -- 2,04 20 -- -- -- 2,12 39 -- -- -- 2,2 na -- -- -- 2,28 na -- -- -- 2,36 na -- -- -- 2,44 na 22 -- -- 2,52 na 41 -- -- 2,6 na na 8 -- na not applicable -- minimum opening area unnecessary Minimum aperture area referred to the installation height = 1,5 m ANV min [cm 2 ] h = 1,5 m Mc A [m2] [kg] 5 6 7 8 9 10 1,88 39 -- -- -- -- -- 1,96 na -- -- -- -- -- 2,04 na -- -- -- -- -- 2,12 na 12 -- -- -- -- 2,2 na 33 -- -- -- -- 2,28 na na -- -- -- -- 2,36 na na 24 -- -- -- 2,44 na na 46 -- -- -- 2,52 na na 67 26 -- -- 2,6 na na na 48 8 -- na not applicable -- minimum opening area unnecessary Example Initial data: – Mc = 2,2 kg – h = 1.2 m – A = 8 m 2 ANV min=80 cm 2 For this installation, we recommend arranging an opening area for ventilation of at least 80 cm 2 a a a The ventilation openings must be free from obstructions. The conduits connected to the appliance must not contain potential sources of ignition. Maintenance must be carried out only as indicated by the manufacturer. 23 / EN