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Installation (contd.)
NOTE
The heater requires two uninterrupted air supply
openings; one for ventilation and one to supply
oxygen for proper gas combustion. The air supply
openings should be sized according to Tables 10.
and 11.
Air supply requirements below apply to all
MiniMax heaters, including PowerMax versions.
A
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A
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r
C
o
M
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e
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1
5
0
1
5
1
9
5
/
2
0
0
2
0
2
5
0
2
5
3
0
0
3
0
3
5
0
3
5
4
0
0
4
0
Table 10.
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1
5
0
3
1
9
5
/
2
0
0
5
2
5
0
6
3
0
0
7
3
5
0
9
4
0
0
1
0
Table 11.
I NSTALLATION ON FLOORS CONSTRUCTED
OF COMBUSTIBLE MATERIALS
The heater may be placed on a "combustible floor"
using either of the two methods listed below:
a) Use Listed Factory Non-combustible Base Kit
for use on combustible floors.
M
o
d
l e
N
o
- n
C
1
5
0
1
9
5
2 /
0
0
2
5
0
3
0
0
3
5
0
4
0
0
Table 12.
Rev. E 2-7-01
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4
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1
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1
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4
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1
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1
4
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1
3
9
2
4
7
1
3
9
3
4
7
1
3
9
4
b) Construct a non-combustible base from masonry
blocks as illustrated, see Figure 23.
BASE FOR USE ON
COMBUSTIBLE FLOORS
SHEET METAL
BLOCKS
Figure 23.
CAUTION
Chemicals should not be stored near the heater
installation. Combustion air can be contaminated by
corrosive chemical fumes which can void the warranty.
STACK TYPE INDOOR DRAFT HOOD KIT
The proper draft hood and adapter must be installed on
the heater as shown below and on page 20:
M
o
d
l e
D
a r
t f
H
o
o
1
5
0
D
H
1
5
1
9
5
2 /
0
0
D
H
2
0
2
5
0
D
H
2
5
3
0
0
D
H
3
0
3
5
0
D
H
3
5
4
0
0
D
H
4
0
Table 13.
19
TM
HOLLOW MASONARY BLOCKS, NOT LESS THAN 4" THICK
(LAID WITH ENDS UNSEALED AND JOINTS MATCHED
FOR AIR CIRCULATION). COVER BLOCKS WITH
24 GA. (MIN.) GALVANIZED SHEET METAL.
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4
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2
3
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1
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. n i
P/N 471048
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