Grant Aerona 290 Installation & Operating Instructions Manual page 20

3.6.5 WALL INSTALLATION IN A RAISED POSITION
Figure 3-10: Raised wall installation
Table 3-7: Raised wall installation protective zone
Dimension
A
B
C
D
E
3.6.6 RAISED WALL INSTALLATION IN A
LEFT-HAND CORNER
A
E
Figure 3-11: Raised Wall installation in a left-hand corner
Table 3-8: Raised wall installation in a left corner protective zone
Dimension
A
B
C
D
E
Page 20
A
Distance (mm)
2100
1000
>1000
200
500
Distance (mm)
1700
1000
>1000
200
500
3.6.7 RAISED WALL INSTALLATION IN A
RIGHT-HAND CORNER
Figure 3-12: Raised Wall installation in a right-hand corner
Table 3-9: Raised wall installation in a right corner protective zone
Dimension
A
B
C
D
E
F
3.6.8 BASE
Unless the heat pump is to be wall mounted (refer to Section
3.6.12 for further information), it should be installed on a firm
flat level surface capable of supporting the weight of the heat
pump and minimising the transmission of noise and vibration, for
example:
• A flat trowelled concrete base approximately 150mm thick.
• Paving slabs on compacted hard core of a sufficient depth for
the ground condition.
• The surface should extend at least 150mm beyond the heat
pump on three sides
Alternatively, two separate smaller concrete bases can be used,
each one being sized and positioned to align with the anti-
vibration mounts of the heat pump model being installed.
In all the above cases a trench can be dug around the base(s)
and filled with chippings or gravel to provide a means of
condensate disposal. Refer to Section 3.6.10.
If the surface of the base(s) is level with or above the damp
course for the building, leave a gap of approximately 150mm
between the edge of the base and the wall of the house to avoid
bridging the DPC.
The heat pump should NOT be installed on loose or uneven
surfaces such as grass, soil, shingle or gravel.
The heat pump must be raised up from the surface of the base by
approximately 100mm on suitable anti-vibration mounts.
To ensure correct drainage of water from the heat pump base
tray, the heat pump must be level across both the width and depth
when installed.
Section 3: Installation Information
A
E
Distance (mm)
2100
1000
>1000
200
500
500