Reznor VS15LHE8, Installation & Operating Manual

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1.8 Clearance to Combustibles
CAUTION
The minimum clearances to combustible
materials are given in the tables below.
These minimum distances must be
adhered to at all times
WARNING
The stated clearance to combustibles
represents a surface temperature of 50°C
above room temperature. Building mate-
rial with a low heat tolerance (such as
plastics, vinyl siding, canvas, tri-ply, etc.)
may be subject to degradation at lower
temperatures. It is the installer’s respon-
sibility to assure that adjacent materials
are protected from degradation.
A/A1
C
E
F
D
B
Figure 9. Diagram illustrating the clearance to combustibles (U Tube shown)
Figure 10.
Diagram illustrating the clearance to combustibles (Linear shown)
Table 4 – Clearance to Combustibles U-Tube
Table 5 – Clearance to Combustibles Linear
VSUTE; VSUHE 15 20/25 30/35 40 45/50
Above Reflector A 280 280 380 380 380
Above Burner / Heater Outlet B* 500 500 500 500 500
To the Sides C 420 510 620 800 800
Below Tubes D
1500 2000 2100 2100 2100
Horizontally from Heater Outlet (un-flued) E 1200 1200 1200 1200 1200
End Wall F 100 100 100 100 100
VSLIE, LSLHE, VSDLE 15/20 25 30/35/40 45/50
Above Reflector A 280 280 280 280
Above Burner B* 500 500 500 500
To the Sides C 750 750 750 750
Below Tubes D
1500 1700 2100 2100
Horizontally from Heater Outlet (un-flued) E 1200 1200 1200 1200
End Wall F 500 500 500 500
Above Heater Outlet (Flued) G 150 150 150 150
Above Heater Outlet (Un-flued) G1 500 500 500 500
B* Clearance distance shown allows for
correct installation of vertical flue outlet.
Where heater is un-flued, clearance
distance is shown to prevent condensa-
tion and flue gas recirculation. See section
1.11.4 for flue clearance distances.
WARNING
Minimum clearance from heater must
be maintained from vehicles parked
below heater. In all situations, clearances
to combustibles must be maintained.
Signs should be posted in storage areas
to specify maximum stacking height to
maintain the required clearance to
combustibles. Such signs must either be
posted adjacent to the heater thermo-
stats or in the absence of such
thermostats in a conspicuous location.
Refer to mounting clearance tables.
A/A1
B
E
F
G/G1
C
C
D
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