Ratings - Multiple Boilers - Weil-McLain Evergreen EVG 220 Manual

®
gas
Ratings — Multiple boilers
Figure 124
Ratings and engineering data — multiple
Boilers in
system
EVG 220 EVG 299/300 EVG 399
2
2
3
3
4
4
5
5
6
6
7
7
8
8
Boiler Shipping
Model weight
Pounds
per boiler
EVG 220
215
EVG 299/300
260
EVG 399
260
1
Based on standard test procedures outlined by DOE for individual boilers.
2
Net water ratings are based on piping and pickup allowance of 1.15. Consult Weil-McLain Technical Services for other allowances.
3
Total amp requirement includes up to three circulators, not exceeding 2.2 amps per circulator.
4
Operating weight is the total weight of the boiler, including water.
5
®
Evergreen
220 vent/air pipes can be either 3" or 4" pipe.
®
Evergreen
299/300/399 vent/air pipes must be 4".
All of the boilers will automatically de-rate as vent/air pipe length increases, due to the pressure loss through the piping. See
Figure 123, page 129 for details.
®
All Evergreen installations require a separate vent pipe and termination for each boiler.
terminate vents as described in vent/air installation instructions in this manual.
Combustion air piping can be individually piped or manifolded. See Advanced Manual for manifolded air piping.
– 130 –
-
fired water boiler
Total CSA Output /DOE
CSA input Heating capacity
Input,
MBH
-
440
598
2 798
660
897
3 1197
880
1196
4 1596
1100
1495
5 1995
1320
1794
6 2394
1540
2093
7 2793
1760
2392
8 3192
Operating Water
weight content
Pounds
Gallons
per boiler
per boiler
Note 4
190 4.6
255 7.0
255 6.7
— 220/299/300/399 Boiler Manual
®
Evergreen boilers
Boiler
H.P.
Output,
-
MBH
Note 1 -
412 12.3
560 16.7
766 22.9
618 18.5
840 25.1
1149 34.4
824 24.6
1120 33.5
1532 45.8
1030 30.8
1400 41.9
1915 57.3
1236 36.9
1680 50.2
2298 68.7
1442 43.1
1960 58.6
2681 80.2
1648 49.2
2240 67.0
3064 91.6
Water flow rate
per boiler
GPM GPM
@ 20°F rise @ 40°F rise
22 11
30 15
40 20
Notes
Net water Manifolded combustion
ratings air duct size
Square
MBH
inches
Note 2
358 220
486 300
666 400
537 330
729 450
999 600
716 440
972 600
1332 800
895 550
1215 750
1665 1000
1074 660
1458 900
1998 1200
1253 770
1701 1050
2331 1400
1432 880
1944 1200
2664 1600
Vent/air pipe
size:
(Provide a
separate vent for
each boiler)
Note 5
3" or 4"
4"
4"
Vent piping cannot be manifolded
Part number 550-100-131/0120
Electrical
service
required
Amps
per boiler
Note 3
15.0
15.0
15.0
. Install and