Install Instructions

Part number 550-100-090/1113
123
GAS-FIRED WATER BOILER — Boiler Manual
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Ratings — multiple Ultra boilers (continued)
&IGURE Engineering data (see Figure 128 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-CT
199 139 0.7 7.1 3.6 2” or 3” 15.0
105-CT
207 145 0.8 9.4 4.7 2” or 3” 15.0
155-CT
234 181 1.2 13.9 7.0 3” 15.0
230-CT
246 192 1.6 20.7 10.4 3” or 4” 15.0
299-CT
297 229 2.1 27.9 14.0 4” 15.0
399-CT
297 229 2.1 36.5 18.2 4” 15.0
&IGURE Notes for Figure 126 and Figure 127-
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 126 provide 6 inches between boilers and 2 inches from boiler to edge of foundation.
Smaller foundations are possible with reduced service clearances.
See page 54 for details.
s For side-to-side installations, see Figure 56, page 54.
s For back-to-back installations, see Figure 57, page 54.
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.
6ENTPIPINGCANNOTBEMANIFOLDED. 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 55, for manifolded air piping.
6
Total amp requirement includes up to three circulators, not exceeding 2.2 amps per circulator.