(Lts Only).11; Minimum Clearances To Combustibles.11 - Space-Ray LTS Series Assembly, Installation And Operation Instructions

18) INCLINED MOUNTING INSTRUCTIONS (LTS ONLY)_
These inclined mounting instruction relate to LTS series heaters (straight tubes) that do not utilize the elbow accessory. These
heaters have been tested and design certified by the CSA for 2yi2" pitch (10°) inclined mounting of the heater from the
control box to the draft inducer assembly as shown in the following diagram.
Draft Inducer
Detail A-^
The purpose of this type mounting is to allow the heater to be mounted in the
plane of the roof (particularly in modern "Butler" type buildings frequently used
today). This will typically put the heater out of the way while still providing the
warmth and comfort. The heater can be inclined upwards from the control box
to the draft inducer at a distance of 2 inches up for every linear foot of the
heater length. The total rise for each draft inducer is tabulated in the table
below:
TOTAL DRAFT iNDUCER HEiGHT ABOVE HORiZONTAL FOR 2"/12" PITCH INSTALLATIONS
Tube Length
Models 15 Ft. 20 Ft. 25 Ft. 30 Ft.
35 Ft.
40 Ft.
45 Ft. 50 Ft
LTS 40-LTS 75
30" 60"
LTS 80-LTS120
60" 70"
LTS125-LTS130
60" 70" 80" 90" 100"
LTS140-LTS175
90" 100"
The heater is subject to all other requirements presented in these Installations Instructions, particularly the Clearances to
Combustibles. If you plan to use this type of installation, order the Space Ray Inclined Mounting Kit, Part #43238000.
19) MINIMUM CLEARANCES TO COMBUSTIBLES
Minimum clearances to combustibles shall be measured
from the outer surfaces as shown in the following diagram;
End
Celling
t
Below
Horizontal
Celling
MINIMUM CLEARANCES TO COMBUSTIBLES
Mounted Horizontally Angle Mounted at 45" |
Model No. Sides Celling*
Below Ends 45' Front 45' Rear
LTS/LTU 40, 50
27"
6"
40" 30" 48" 12"
LTS/LTU 60, 75 27" 6" 60" 30" 48"
12"
LTS/LTU 80, 90
52"
6"
84" 30' 52" 12"
LTS/LTU 100 66" 6"
88" 40" 66" 20"
LTS/LTU 110,120,125,130 66" 6" 101"
41"
66"
20"
LTS/LTU 140,150,160,175
84" 6" 106" 48" 84" 24"
* When used indirect vented,
the clearance must be:
12" for LTS40-75 and
18" for LTS/LTU80-175.
If optional corner reflectors
are not used, the clearance
must be 18"
NOTE: The clearances specified above must be maintained to combustibles and other materials that may be damaged by
temperatures 90°F above ambient temperature. Clearances to combustibles are posted on the control box. In areas used
for storage of combustible materials where they may be stacked below the heater, NFPA54 requires that the Installer must
post signs that will "specify the maximum permissible stacking height to maintain the required clearances from the heater
to combustibles." Space-Ray recommends posting these signs adjacent to the heater thermostat or other suitable location
that will provide enhanced visibility.
Form #43155010
Feb4>4 -
11
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