Midea MC-SU30-RN1L Owners & Installation Manual page 10

3.4 Space requirements for parallel installation of
multiple Modular units
To avoid back flow of the air in the condenser and operational
faults of the unit, the parallel installation of multiple Modular
units can follow the direction A and D as shown in Fig. 3-2, the
spaces between the unit and the obstacle are given in Table
3.1, and the space between adjacent Modular units should not
be less than 300mm; the installation can also follow the
direction B and C as shown in Fig. 3-2, the spaces between the
unit and the obstacle are given in Table 3-1, and the space
between adjacent Modular units should not be less than
600mm; the installation can also follow the direction
combination of A and D, and B and C, the spaces between the
unit and the obstacle are given in Table 3-1, the space between
adjacent Modular units in the direction A and D should not be
less than 300mm, and the space between adjacent Modular
units in the direction B and C should not be less than 600mm.
If the spaces mentioned above cannot be met, the air passing
from the unit to the coils may be restricted, or back flow of air
discharge may occur, and the performance of the unit may be
affected, or the unit may fail to operate.
3.5 Installation foundation
a. The unit should be located on the horizontal foundation, the
ground floor or the roof which can bear operating weight of the
unit and the weight of maintenance personnel. Refer to Table
9.1 (Table of applicable models and parameters) for operating
weight.
b. If the unit is located so high that it is inconvenient for
maintenance personnel to conduct maintenance, the suitable
scaffold can be provided around the unit.
c. The scaffold must be able to bear the weight of maintenance
personnel and maintenance facilities.
d. The bottom frame of the unit is not allowed to be embedded
into the concrete of installation foundation.
3.5.1 Location drawing of installation foundation of the unit: (unit:
mm)
2000
788
Drainage channel
Anchor bolt
Schematic diagram of installation dimension of MC-SU30M/RN1L
Drainage channel
Anchor bolt
Schematic diagram of installation dimension of MC-SU60M/RN1L
I&O manual
6
Fig. 3-4
2040
1105
Fig. 3-5
Drainage channel Concrete
3.6 Installation of damping devices
3.6.1 Damping devices must be provided between the unit
and its foundation.
By means of the Φ15mm diameter installation holes on the
steel frame of the unit base, the unit can be fastened on
the foundation through the spring damper. See
Fig.3-3(Schematic diagram of installation dimension of the
unit) for details about center distance of the installation
holes. The damper does not go with the unit, and the user
can select the damper according to the relevant
requirements. When the unit is installed on the high roof or
the area sensitive to vibration, please consult the relevant
persons before selecting the damper.
3.6.2 Installation steps of the damper
Step 1. Make sure that the flatness of the concrete
foundation is within ±3mm, and then place the unit on the
cushion block.
Step 2. Raise the unit to the height suitable for installation
of the damping device.
c. Remove the clamp nuts of the damper.
Step 3. Place the unit on the damper, and align the fixing
bolt holes of the damper with the fixing holes on the unit
base.
Step 4. Return the clamp nuts of the damper to the fixing
holes on the unit base, and tighten them into the damper.
Step 5. Adjust the operational height of the damper base,
and screw down the leveling bolts. Tighten the bolts by
one circle to ensure equal height adjustment variance of
the damper.
Step 6. The lock bolts can be tightened after the correct
operational height is reached.
It is recommended that the damper should be fastened on
the foundation with the provided holes. After the unit is
placed on the foundation, the damper connected with the
unit should not be moved, and the central clamp nut is not
allowed to be tightened before the damper sustains load.
Fig. 3-7
Cement mortar
Fig. 3-6
NOTE
Anchor bolt M12
Nut
Ferrol
Damping device