Transport and positioning
Installation, use and maintenance manual – Next-G
27
2
2.4
MINIMUM CLEARANCE DISTANCES
2.4.1
Distances from combustible or flammable
materials
Keep the appliance away from combustible or flammable
materials or components, in compliance with applicable
regulations.
2.4.2
Clearances around the appliance
The minimum clearance distances are required for
safety, operation and maintenance.
2.4.2.1
Axial gas unit heaters
Figure 2.2
Clearances
A Gas unit heater width
B
Object or structure underneath the gas unit heater
B
> 350
mm
> 400 mm
< 3,5 m
> 2,5 m
> 200
mm
A
A
> 500 mm
The recommended height from the floor to the gas
unit heater base is 2,5 ÷ 3,5 m (Figure 2.2
p. 27).
We do not recommend installing the gas unit
heaters at heights below 2,5 m from the floor.
2.4.2.2
Centrifugal gas unit heaters
The position of gas unit heaters with centrifugal fan must
consider the position of the warm air duct. This must be
suitably sized and verified in relation to the air flow rate
and the head of the centrifugal fan (Paragraph 3.5
p. 35).
The recommended height from the floor to the gas
unit heater base is 3,0 ÷ 3,5 m (Figure 2.2
p. 27).
We do not recommend installing the gas unit
heaters at heights below 3,0 m from the floor.
2.5
SUPPORT BRACKET
Robur provides easy mounting support brackets as an op-
tional, suitably designed for Next-G series gas unit heat-
ers, which allow simplifying the wall fixing.
If you do not want to use these options, refer to Figure
When fixing the unit to the support brackets, use 4 M10
bolts.
Figure 2.3
Installation with support bracket
A Gas unit heater fixing points centre distance
B
Support bracket length
40
405
B
A
Table 2.1
Support bracket dimensions for axial gas unit heaters
G 30
G 30 EC
G 35 EC
G 45
G 45 EC
G 60
G 60 EC
G 75 EC
G 90
G 90 EC
A
370
370
620
810
1010
B
840
Table 2.2
Support bracket dimensions for centrifugal gas unit
