Installation Minimum installation distances C a [mm] D c b [mm] E e B e D e B b d a A Fig. 22 c [mm] d [mm] e [mm] eD [mm] andB [mm] ABC ≥300 ≥150 ≥150 B ≥150 D ≥500 BE ≥150 ≥500 ≥150 BD ≥150 ≥1000 DE ≥1000 ≥1000 ≥1000 a a a Do not install the outdoor unit in tight spaces as this may cause abnormal noise levels and reduce its performances. Ensure an adequate distance between the front part of the appliance and any nearby walls The height of any barriers or walls must be lower than the height of the outdoor unit. We recommend paying careful attention to where the product is installed, so as to avoid causing inconveniences to the user and to the neighbours. It is necessary to take into account the distance from the property’s boundaries, the presence of any windows and the proximity to the bedroom area. 3.3.2 Noise level To limit noise pollution and the transmission of vibrations, it is possible: – Install the outdoor unit on a metal frame or on a vibration-damping base. Vibration dampers must be mounted to reduce the transmission of vibrations. – Install a wall-mounted vibration absorber on the wall behind the unit; – Install a sound shield. The shield must have a surface area larger than the outdoor unit, it must be positioned as close as possible to the unit itself, while ensuring that air can nonetheless circulate freely, and must be made of suitable material (acoustic bricks or cement blocks lined with sound-absorbing material). 3.3.3 Handling Once the packaging has been removed, the outdoor unit can be handled with suitable equipment in relation to the unit’s weight. a a Observe the maximum weight that can be lifted per person. Handling operations may potentially cause personal injuries or damages to the appliance or to the surrounding area. Identify the risky area and check that it is free of people or objects during lifting operations. 18 / EN

Installation 3.3.4 Installation The outdoor unit must be anchored to the floor or to a wall-mounted bracket. a Before installing the system, check that its supporting base is sufficiently resistant and the surface is leveled. Arrange the unit’s installation base according to the dimensions shown below. Outdoor unit (ODU) NIMBUS EXT R32 35 M 50 M 80 M & M-T 120 M & M-T 150 M & M-T UM A 670 670 670 670 670 mm B 383 383 383 383 383 mm C 1016 1016 1016 1016 1016 mm D 756 756 1106 1506 1506 mm 1 A C 1 2 Ø10 mm B D a 1 2 3 Fig. 24 When drilling holes into concrete, we recommend always wearing safety goggles or glasses. If the unit must be secured to a wall-mounted bracket, proceed as follows: – Mark the positions of the holes for the brackets by referring to the measurements shown on the assembly dimensions diagram. – Drill the holes for the rawl plugs. – Clean the concrete dust and residues out of the holes. – Screw the rawl plugs into the holes of the mounting brackets, arrange the brackets in the proper position and hammer the plugs into the wall. – Check that the mounting brackets are properly aligned. – Carefully lift the unit and place its mounting feet on the brackets. – Secure the unit tightly to the brackets using the anchoring bolts (1) (M10 x 4), the washers (2), the vibration dampers (3) and the nuts (4). 1 2 Fig. 23 1 Air inlet 2 Air outlet If the unit is to be installed on the floor or on a (strip) foundation, proceed as follows: – Mark the positions of the four rawl plugs by referring to the measurements shown on the assembly dimensions diagram. – Drill the holes for the rawl plugs. – Clean the concrete dust out of the holes. – Hammer the rawl plugs into the drilled holes. – Anchor the base of the outdoor unit to the holes, using the anchoring bolts (1) (M10 x 4), the washers (2) and the vibration dampers (3). 3 4 Fig. 25 – If the external unit is still aligned in the main wind direction, a wind protection shield must be provided. – If the unit is frequently exposed to heavy snowfall: install a canopy above the unit to protect it from rain or snow. Be careful not to obstruct the flow of air around the unit. EN / 19

Installation Minimum installation distances C a [mm] D c b [mm] E e B e D e B b d a A Fig. 22 c [mm] d [mm] e [mm] eD [mm] andB [mm] ABC ≥300 ≥150 ≥150 B ≥150 D ≥500 BE ≥150 ≥500 ≥150 BD ≥150 ≥1000 DE ≥1000 ≥1000 ≥1000 a a a Do not install the outdoor unit in tight spaces as this may cause abnormal noise levels and reduce its performances. Ensure an adequate distance between the front part of the appliance and any nearby walls The height of any barriers or walls must be lower than the height of the outdoor unit. We recommend paying careful attention to where the product is installed, so as to avoid causing inconveniences to the user and to the neighbours. It is necessary to take into account the distance from the property’s boundaries, the presence of any windows and the proximity to the bedroom area. 3.3.2 Noise level To limit noise pollution and the transmission of vibrations, it is possible: – Install the outdoor unit on a metal frame or on a vibration-damping base. Vibration dampers must be mounted to reduce the transmission of vibrations. – Install a wall-mounted vibration absorber on the wall behind the unit; – Install a sound shield. The shield must have a surface area larger than the outdoor unit, it must be positioned as close as possible to the unit itself, while ensuring that air can nonetheless circulate freely, and must be made of suitable material (acoustic bricks or cement blocks lined with sound-absorbing material). 3.3.3 Handling Once the packaging has been removed, the outdoor unit can be handled with suitable equipment in relation to the unit’s weight. a a Observe the maximum weight that can be lifted per person. Handling operations may potentially cause personal injuries or damages to the appliance or to the surrounding area. Identify the risky area and check that it is free of people or objects during lifting operations. 18 / EN

Installation 3.3.4 Installation The outdoor unit must be anchored to the floor or to a wall-mounted bracket. a Before installing the system, check that its supporting base is sufficiently resistant and the surface is leveled. Arrange the unit’s installation base according to the dimensions shown below. Outdoor unit (ODU) NIMBUS EXT R32 35 M 50 M 80 M & M-T 120 M & M-T 150 M & M-T UM A 670 670 670 670 670 mm B 383 383 383 383 383 mm C 1016 1016 1016 1016 1016 mm D 756 756 1106 1506 1506 mm 1 A C 1 2 Ø10 mm B D a 1 2 3 Fig. 24 When drilling holes into concrete, we recommend always wearing safety goggles or glasses. If the unit must be secured to a wall-mounted bracket, proceed as follows: – Mark the positions of the holes for the brackets by referring to the measurements shown on the assembly dimensions diagram. – Drill the holes for the rawl plugs. – Clean the concrete dust and residues out of the holes. – Screw the rawl plugs into the holes of the mounting brackets, arrange the brackets in the proper position and hammer the plugs into the wall. – Check that the mounting brackets are properly aligned. – Carefully lift the unit and place its mounting feet on the brackets. – Secure the unit tightly to the brackets using the anchoring bolts (1) (M10 x 4), the washers (2), the vibration dampers (3) and the nuts (4). 1 2 Fig. 23 1 Air inlet 2 Air outlet If the unit is to be installed on the floor or on a (strip) foundation, proceed as follows: – Mark the positions of the four rawl plugs by referring to the measurements shown on the assembly dimensions diagram. – Drill the holes for the rawl plugs. – Clean the concrete dust out of the holes. – Hammer the rawl plugs into the drilled holes. – Anchor the base of the outdoor unit to the holes, using the anchoring bolts (1) (M10 x 4), the washers (2) and the vibration dampers (3). 3 4 Fig. 25 – If the external unit is still aligned in the main wind direction, a wind protection shield must be provided. – If the unit is frequently exposed to heavy snowfall: install a canopy above the unit to protect it from rain or snow. Be careful not to obstruct the flow of air around the unit. EN / 19