CLEAN BURN CB-500 series, Operator'S Manual

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Operator's Manual: Models CB-1500 & CB-2500 (230 V / 50 Hz)
8-6
Installing the Make-up Air Louver
All louvers and grills, regardless of the material from which they are made, must be FIXED in the OPEN
position OR be interlocked with the appliance so that they will open automatically during the operation of the
appliance. The interlock must be placed on the driven member.
NOTE: It is very important to follow these instructions carefully to ensure proper performance of the louver.
1. The louver must not be close to the furnace. The fresh air should travel at least 10-13m
(40-50 feet) before reaching the furnace so the air warms up. The furnace will not heat well if it
is receiving cold return air.
2. The louver must be high in the sidewall of the building so the cold fresh air does not blow across
the floor level and chill the service personnel.
3. The louver should be installed in the opposite wall from the location of the exhaust fan. This
will quickly vent diesel exhaust from the top of the building and reduce the amount of run time
for the exhaust fan.
CALCULATED OPENING SIZE
cm
2
in
2
REQUIRED LOUVER / GRILL SIZE
cm in
0 – 528 0 – 82 25 x 25 10 x 10
529 – 836 83 – 130 30 x 30 12 x 12
837 – 1,445 131 – 224 41 x 41 16 x 16
1,446 – 1,923 225 – 299
46 x 46 18 x 18
1,924 – 2,390 300 – 370 51 x 51 20 x 20
2,391 – 3,166 371 – 490 61 x 61 24 x 24
3,167 – 4,769 491 – 739 76 x 76 30 x 30
4,770 – 7,150 740 – 1109 91 x 91 36 x 36
7,151 – 9,182 1,110 – 1,424 107 x 107 42 x 42
9,183 – 12,355 1,425 – 1,915 122 x 122 48 x 48
12,356 – 15,499 1,916 – 2,400 137 x 137 54 x 54
15,500 – 19,650 2,401 – 3,045 152 x 152 60 x 60
Installing a Make-up Air Louver (continued)