Weil-McLain 550 MBH Nstallation And Operation Manual page 122

®
SlimFit Series 3
Ratings — multiple SlimFit Series 3 boilers
Ratings and engineering data (see Figure 106 for notes)
Total
CSA
input
Boilers
in system
Input,
MBH
SF-550 SF-750
2 1100
2 1500
3 1650
3 2250
4 2200
4 3000
5 2750
5 3750
6 3300
6 4500
7 3850
7 5250
8 4400
8 6000
122
COMMERCIAL CONDENSING GAS
Total Total
Gross Net
Output Rating
Output,
MBH
MBH
1034 900
1404 1220
1551 1350
2106 1830
2068 1800
2808 2440
2585 2250
3510 3050
3102 2700
4212 3660
3619 3150
4914 4270
4136 3600
5616 4880
-
FIRED WATER BOILER
Total Manifolded
Boiler combustion
H.P. air duct
size
Square
—
inches (inches)
Figure 26, page 36
30.9 550
41.9 750
46.3 825
62.9 1125
61.8 1100
83.9 1500
77.2 1375
104.9 1875
92.7 1650
125.8 2250
108.1 1925
146.8 2625
123.6 2200
167.8 3000
—
Boiler Manual
Foundation size
Side-to-side Back-to-back
arrangement arrangement
(height 2" to 4") (height 2" to 4")
Length Width Length
(inches) (inches)
Note 1
106 21 51
165 21 110
224 21 110
283 21 169
342 21 169
401 21 228
460 21 228
Part number 550-100-168/0516
Width
(inches)
40
40
40
40
40
40
40