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4.2
Choice of installation site
4.2.1 Regulations concerning the installation site
▶ The water heater may not be installed over a heat source.
▶ Comply with the minimum installation clearances indicated
in fig. 5 and table 10.
▶ Ensure there is a socket for electrical connection near the
water heater and it is easily accessible after the installation
of the water heater.
Location of the appliance
The combined air intake and flue terminal must terminate
outdoors in a well ventilated area away from vegetation and
other obstructions.
In order to prevent corrosion, the combustion air must not
contain any corrosive substances.
Substances classed as corrosion-promoting include
halogenated hydrocarbons containing chlorine and fluorine
compounds. They may be found in solvents, paints, adhesives,
aerosol propellants and household cleaners, for example.
If these conditions cannot be guaranteed, a different site must
be chosen for the appliance.
4.2.2 Overall flue length of the installation
The overall flue length may not exceed the values indicated in
the tables 7 and 8, and must not be less than the values
indicated in table 9 (Min length).
In determining the overall length of the installation, the
equivalent length (Leq) of each accessory must be considered.
In horizontal installations, the first elbow
positioned just at the outlet of the appliance
must not be considered for the purposes of
calculation.
Surface temperature
The maximum surface temperature of the appliance is below
85 °C. No special safety precautions are required with regard
to flammable building materials and cabinetry.
▶ Ensure that local building codes and regulations are
followed.
4.3
Minimum clearances
Consider the following limitations when determining the
installation location:
▶ Maximum length of the power cord.
▶ Allowances for service work while considering the
minimum distances indicated in fig. 6.
Optiflow Professional – 6 720 810 560 (2017/11)
Installation (only by an authorised technicians)
Fig. 5
Minimum distances
[A] Side 1 cm
[B] 40 cm
[C] Front 2 cm
Minimum distances to exhaustion points
N
A
J
N
C
J
B
F
Flue terminal positions
for water heaters in accordance
with AS/NZ5601
P
E
E
Fig. 6
Minimum flue clearances
Item
A Below eaves, balconies and other
projections
B From the ground, above a balcony or other
1)
surface
C From a return wall or external corner
Table 10
A
A
K
H
K
C
K
C
D
D
GM
B
B
G
A
J
K
G
B
6720817545-09.2V
Min.clea-
rance (mm)
300
300
1)
300
H
15
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