Installation Guide

Part number 550-100-066/0608
107
g a s -f i r e d w at e r b o i l e r — Boiler Manual
Ratings — multiple Ultra boilers (continued)
 Engineering data (see Figure 116 for notes)
Boiler
Model
Ultra –
Shipping
weight
Operating
weight
Water
content
Water flow rate
per boiler
Vent/air pipe
size —
Provide a
separate vent
for each boiler
Electrical
service
required
Pounds
per boiler
Pounds
per boiler
Gallons
per boiler
GPM
@ 20°F rise
GPM
@ 40°F rise
Amps
per boiler
Note 4 Note 5 Note 6
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
310
297 229 2.0 28.9 14.5 4” 15.0
 Notes for Figure 114 and Figure 115
1
Based on standard test procedures outlined by DOE for individual boilers.
2
Net I=B=R ratings are based on piping and pickup allowance of 1.15.
Consult Weil-McLain Technical Services for other allowances.
3
Foundation sizes in Figure 114 provide 6 inches between boilers and 2 inches from boiler to edge of foundation.
Smaller foundations are possible with reduced service clearances.
See page 7 for details.
For side-to-side installations, see • Figure 2, page 7.
For back-to-back installations, see • Figure 3, page 7.
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 31, page 30, for manifolded air piping.
6
Total amp requirement includes up to three circulators, not exceeding 2.2 amps per circulator.