Indoor Unit Installation - Rinnai DONSR20Z9 Operation & Installation Manual

INSTALLATION INDOOR
•
Strong enough to bear the weight of the indoor unit.
•
Ceiling has no obvious slant.
•
There is sufficient space for repair and maintenance work to be carried out.
•
No leakage of flammable gas.
•
The length of the piping between the indoor and outdoor units is within the permitted range (refer to the
manual on installation of the outdoor unit).
•
The static pressure of the air duct of the indoor unit is within the permitted range (see "12.2 Fan Performance"
on page 26).
If the indoor ambient temperature and relative humidity exceed 30°C and 80%, attach insulation
materials at a thickness greater than 10 mm to the unit body.
CAUTION
8.2 Install with M10 or W3/8 lifting bolts.
8.3 The space required for installation (unit: mm) is shown in Figure 3 and Figure 4 below.
Side face (wall)
Maintenance room
Air outlet side
Electric control
box assembly
Maintenance room
Side face (wall)
Figure 3.
9.

INDOOR UNIT INSTALLATION

Make sure that only specified components are used for the installation works.
9.1 Installation with Lifting Bolts
Use different bolts for the installation depending on the installation environment.
Square bar material
Lifting bolt
Figure 5. Wooden structure
Rinnai
Air return side
Inspection:
600 mm x 600 mm
Beam
Ceiling
18
Air outlet side
Electric control
box assembly
Ceiling
Ensure that the minimum slope for
water discharge is more than
1/100, and that the unit body slopes
down towards the drainage side.
Figure 4.
Use embedded bolts, and pull bolts.
Figure 6. Original concrete slab structure
Ducted Reverse Cycle Inverter Installation Manual (Indoor)
Air return side
For Inspection