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SlimFit
Series 3
Prepare boiler
A
A
A
1
3
5
Heat
exchanger
11
12
10
COMMERCIAL CONDENSING GAS
(continued)
is used on all SF-550 boilers, for both natural gas and propane.
is used on SF-750 propane, but NOT on natural gas.
MUST be installed on both the SF-550 and SF-750 to operate on propane.
Verify model number & fuel
Install plate with I. D. stamping toward front of boiler and facing blower
4
BACK
SIDE
13
14
—
-
FIRED WATER BOILER
3
Verify model number
9
8
Boiler Manual
See page 9 for legend
or
2
7
or
10
Part number 550-100-168/0516
6
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