EN - 10
2. PRECAUTIONS FOR INSTALLATION WORK
•
The foundation for the outdoor A/C unit must be made of concrete or similar material, and must be
sturdy and level, with good drainage.
Imperfections may cause the outdoor unit to turn over, resulting in gas leakage and/or injury.
•
Use a level to make sure the foundation is level.
If level is not maintained, it may result in a breakdown.
•
When installing the outdoor unit, be sure to use the speci
fi
ed size of anchor bolts (shown in Fig. 10)
and anchor the unit security. Failure to do so may result in the outdoor unit tipping over, causing gas
leakage and personal injury.
Spread a vibration-resistant mat over the surface where the bottom of the outdoor unit contacts the ground,
so that the load is applied evenly. Use rubber bushings and anchors in such a way does not diminish the
vibration-resistant effects.
(1) Foundation construction
Be sure to take the following steps to prevent shifting of the foundation.
A mat foundation that is simply placed on a
fl
oor slab (A-a type) must be of the dimensions shown in the Table
3 or larger in order to prevent shifting of the foundation in case of earthquake. If the mat foundation is smaller
than these dimensions, take steps such as connecting the foundation and the building structure with reinforcing
bars, in accordance with building utilities earthquake-resistant design and construction guidelines.
Foundation types A-b, A-c, A-d, and A-e are provided as examples.
Use one of the following types of anchors. Use bolts of size M12 or larger for all bolts.
1. Embedded-type: L-type, LA-type, headed bolts, J-type, JA-type
2. Blockout-type: L-type, LA-type, headed bolts, J-type, JA-type (Make dimension “f” of the foundation
180 mm or more.)
3. Plastic anchor
4. External-thread type mechanical anchor
CAUTION: Do not use an internal-thread type mechanical anchor.
Foundation
Vibration-resistant mat
M12
anchor
bolt
Fig. 10 Foundation diagram (mat foundation)
Unit: mm
Table 3
a (mm)
b (mm)
c (mm)
d (mm)
e (mm)
f (mm)
45.0/56.0/
71.0 kW
Installation on ground
1,700 or
more
1,170 or
more
1,000
1,040
1,450
120 or
more
Installation
on roof
Without vibration-resistant frame
1,850 or
more
2,000 or
more
140 or
more
With vibration-resistant frame (single type)
2,000 or
more
With vibration-resistant frame (interlocking type)
1,850
85.0 kW
Installation on ground
1,700 or
more
1,170 or
more
1,000
1,040
1,450
120 or
more
Installation
on roof
Without vibration-resistant frame
1,850 or
more
2,000 or
more
140 or
more
With Vibration-resistant frame
2,000 or
more
Unit: mm
00-Installation̲All.indb 10
00-Installation̲All.indb 10
2012/09/07 9:32:40
2012/09/07 9:32:40
