Schwank comfortSchwank - Powder STW-JZ - Manual (Page 12)

12
SPW-JZ, STW-JZ(2) / IWP, IW(2) I&O Manual
IM101229
RL: 13A
RD: MAY 2014
*
GUIDELINE MOUNTING HEIGHTS are typical to provide optimum comfort in general indoor-
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 for area or ‘spot’ heat indoor or , or in areas with greater infiltra-
tion losses (near overhead doors, etc)
IMPORTANT: Single or multiple heater placement must be such that continuous
operation of heater(s) will not cause combustible material or materials in storage
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
protected to prevent degradation. Examples of low heat tolerance materi-
als include vinyl siding, fabrics, some plastics, filmy materials, etc.
Refer to “Clearance to Combustibles” information on pages 6 to 8, and Fig-
ure 1 and Table 1.
MODELS:
SPW-JZ / IWP
STW-JZ / IW
STW-JZ2 / IW2
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 – 25 (6 - 8) 50 (15) 17 – 25 (5 - 8)
COMBUSTIBLE
CLEARANCE
BEHIND
(refer to Table 1)
175,000 18 – 25 (6 - 8) 50 (15) 17 – 25 (5 - 8)
155,000 16 – 21 (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)
45,000 8 – 12 (2.5 - 4) 20 (6) 8 – 12 (2.5 - 4)
TABLE 2: GUIDELINES FOR HEATER PLACEMENT: INDOOR SPACE HEATING
7. SYSTEMS INCORPORATING 90° ELBOWS AND 180° ELBOWS
The radiant tube heater can be installed in configurations as illustrated in FIGURE 4. (below)
with a maximum of two 90° elbows per heater. The use of elbows reduces the total maximum
vent allowable. (See Section 11 : Flue venting)