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Part number 550-100-400/0119
139
Ratings — Multiple Ultra Series 4 boilers (continued)
Figure 140nineerin data see iure for notes
Boiler
Model
Ultra
Shipping
weight
Operating
weight
Water
content
Water fl ow rate
per boiler
Vent/air pipe
size —
Provide a
separate vent
for each boiler
Electrical
service
required
ounds
per oiler
ounds
per oiler
allons
per oiler
rise
rise
Amps
per oiler
Note Note Note
-80
199 139 0.7 7.1 3.6 2” or 3” 15.0
-105
207 145 0.8 9.4 4.7 2” or 3” 15.0
-155
234 181 1.2 13.9 7.0 3” 15.0
-230
246 192 1.6 20.7 10.4 3” or 4” 15.0
-299
297 229 2.1 27.9 14.0 4” 15.0
-310
297 229 2.1 28.9 14.5 4’ 15.0
-399
297 229 2.1 36.5 18.2 4” 15.0
Figure 141Notes for iure and iure
®
Series 4
gas-fired water boiler — Boiler Manual
1
Based on standard test procedures outlined by DOE for individual boilers.
2
Net AHRI ratings are based on piping and pickup allowance of 1.15.
Consult Weil-McLain Technical Services for other allowances.
3
Foundation sizes in Figure 139 provide 6 inches between boilers and 2 inches from boiler to edge of foundation.
Smaller foundations are possible with reduced service clearances.
See page 58 for details.
For side-to-side installations, see Figure 56, page 58 .
For back-to-back installations, see Figure 57, page 58 .
4
Operating weight is the total weight of the boiler, including water.
5
Ultra-80 and -105 vent/air pipes can be either 2” or 3” pipe. Vent/air pipe length limits for 2” piping are not as long as for 3” piping.
Ultra-230 vent/air pipes can be either 3” or 4” pipe. Vent/air pipe length limits for 3” piping are not as long as for 4” piping.
All Ultra installations require a separate vent pipe and termination for each boiler.
. Install and
terminate vents as described in vent/air installation instructions in this manual.
Combustion air piping can be individually piped or manifolded. See Figure 59, page 59 , for manifolded air piping.
6
Total amp requirement includes up to three circulators, not exceeding 2.2 amps per circulator.
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