Schwank duraSchwank - Steel STW-JZ - Manual (Page 12)

12
SPW-JZ, STW-JZ / IWP, IW
I&O Manual IM101229
RL: 12B- BA
RD: AUG 2013
*
GUIDELINE MOUNTING HEIGHTS are typical to provide optimum comfort in general space
heating applications. Variance to these typical heights can occur in some applications:
 Higher mounting heights due to structure or application requirements
 Lower mounting heights: Area or ‘spot’ heat; locations with sufficient horizontal separa-
tion distance from personnel; areas with greater infiltration losses (near overhead doors,
etc)
IMPORTANT: Single or multiple heater placement must be such that continous
operation of heater(s) will not cause combustible material or materials in stor-
age to reach a temperature in excess of ambient temperature plus 90F° (50C°).
It is the installer’s responsibility to ensure that building materials with a
low heat tolerance which may degrade at lower temperatures are pro-
tected to prevent degradation. Examples of low heat tolerance materials
include vinyl siding, fabrics, some plastics, filmy materials, etc.
Refer to “Clearance to Combustibles” information on pages 6 to 8, and
Figure 1 and Table 1.
MODEL INPUT
RATE
(Btuh)
GUIDELINE*
MOUNTING
HEIGHT
ft (m)
MAXIMUM
DISTANCE
BETWEEN
HEATERS
ft (m)
DISTANCE – OUTSIDE WALL
TO HEATER LONG AXIS
(PARALLEL TO WALL) IN “FEET”
HORIZONTAL
ft (m)
ANGLE
200,000 18 – 30 (6 - 8) 50 (15) 17 – 25 (5 - 8)
COMBUSTIBLE
CLEARANCE
BEHIND
REFLECTOR -
or greater
(refer to Table 1)
175,000 18 – 30 (6 - 8) 50 (15) 17 – 25 (5 - 8)
150,000 16 – 25 (5 - 7) 45 (14) 15 – 20 (5 - 7)
130,000 15 – 21 (5 - 7) 40 (12) 15 – 20 (5 - 7)
110,000 13 – 19 (4 - 6) 35 (11) 13 – 18 (4 - 6)
80,000 10 – 16 (3 - 5) 30 (9) 12 – 16 (4 - 5)
60,000 8 – 14 (2.5 - 5) 25 (8) 11 – 15 (3.4 - 5)
40 / 45,000 8 – 12 (2.5 - 4) 20 (6) 8 – 12 (2.5 - 4)
TABLE 2: GUIDELINES FOR HEATER PLACEMENT