UNIT DIAGRAMS

Unit: mm

SMZU75V2AI, SMZU96V2AI

792729

345

613

613

348

SMZU120V2AI

370 602

649

649

1240727

SMZU135V2AI, SMZU150V2AI

376 607

649

649

1240727

SMZU175V2AI, SMZU190V2AI, SMZU215V2AI

376

704

704

607

1240727

UNIT INSTALLATION SPACE REQUIREMENTS

9.1 Selection of outdoor unit installation site

VRF units are used in a lot of situations and serve wider users. If the unit is installed in a living environment, the cooling, heating and noise requirements will be higher, especially for the aged and infants. Therefore, the indoor/outdoor unit model with sufficient capacity and low noise should be preferred during model selection. It is not advisable to install the outdoor unit outside the bedroom, study room, or meeting room. For the commercial site, it is improper to install the outdoor unit near the office.

9.2 External dimensions and mounting hole dimensions of the outdoor unit

Unit: mm

External and installation dimensions of SMZU75V2AI, SMZU96V2AI and SMZU120V2AI:

792

930 765

729

1605

1

22

15

1 Mounting hole postion

External and installation dimensions of SMZU135V2AI and SMZU150V2AI:

1200

7651340

729

1605

2

22

15

2 Mounting hole postion

External and installation dimensions of SMZU175V2AI, SMZU190V2AI and SMZU215V2AI:

1740

729

22

15

1340 765

1200

Mounting hole postion

External unit installation space requirements

Unit: mm

1) If all sides of the outdoor unit (including the top) are surrounded by walls, process according to the following requirements for installation space:Installation space requirements for the single-module unit

Electrical BoxOutlet on this side

Air Outlet

＞10

00

＞30

00

＞1000＞1000

＞12

00

Installation space requirements for the dual-module unit

Electrical BoxOutlet on this side

Air Outlet

＞10

00

＞200 ＞30

00

＞1000＞1000

＞12

00 ＞200

Installation space requirements for triple-module unit

Electrical BoxOutlet on this side

Air Outlet

＞10

00

＞200＞200 ＞30

00

＞1000＞1000

＞12

00 ＞200＞200

Installation space requirements for quad-module unit

Electrical BoxOutlet on this side

Air Outlet

＞10

00

＞200

＞200＞200＞200

＞200＞200 ＞30

00

＞1000＞1000

＞12

00

2) If there is a crown wall (such a barrier against wind) above the machine top, the machine top should be more than 3000 mm away from the crown wall in principle. If the spaces around the front, rear, left side, and right side of the machine are all open spaces, the machine top should be more than 1500 mm away from the crown wall, as shown in Figure (a). If the dimension is less than 1500 mm or the spaces around the machine are not open spaces, it is required to use a return duct to keep smooth ventilation, as shown in Figure (b).

Air Outlet

＞15

00

Crown wall

When the distance is less than 1500mm, connect an air duct so as to keep good ventilation.

＞1000

＞200

Figure (a) Figure (b)Installation space requirements of multiple outdoor unitsTo ensure smooth ventilation, an open space must be ensured above the unit top, and there is no barrier against wind.If there is an open space at the front side and left side (or right side) of the outdoor unit, the units should

be installed towards the same direction or reverse direction.

＞200 ＞200 ＞1000

＞12

00＞

1000

＞200＞200

＞1000 ＞1200

＞1000

No limit on the height of wall

Front side

Front side

Back side

Back side

Max. 4 sets side by side

＞200 ＞200 ＞200 ＞1000

＞12

00＞

1200

＞200＞1000 ＞

1200＞

1200

No limit on the height of wall

Front side

Front side

Back sideBack side

Max. 4 sets side by side

3) Considering the seasonal wind in outdoor unit installation

Correct Incorrect：In this case, the defrosting duration will be extended.Seasonal wind Seasonal wind Seasonal windSeasonal wind

Protective cover

Return air

Return air Return air

Return air Front Front

Front

Front

4) Considering snow in outdoor unit installation

Correct Incorrect

Seasonal wind Seasonal wind

Protective cover at the supply air outlet (field supplied)

Protective cover at the return air inlet (field supplied)

The height of the base should higher than that of the snowfall.

5) When the outdoor unit is installed on equipment, an air exhaust pipe should be connected, the aperture opening ratio of the louver cannot be smaller than 80%, and the included angle between the louver and the horizontal plane should be smaller than 20°.