A.O. Smith 3400 User Manual

Page of 83
8
MODELS 
(XB/XW)
INPUT 
MBH
GROSS 
OUTPUT MBH 
(NOTE 1)
NET I=B=R RATINGS WATER MBH 
(NOTE 2)
MAX
MIN
1000
920
100
856
744
1300
1300
130
1209
1051
1700
1700
170
1581
1375
2000
2000
100
1860
1617
2600
2600
130
2418
2103
3400
3400
212
3162
2750
RATINGS
TABLE 5.  IBR RATINGS
Notes:
1.  The ratings are based on standard test procedures prescribed by the United States Department of Energy.
2.  Net I=B=R ratings are based on net installed radiation of sufficient quantity for the requirements of the building and nothing need 
be added for normal piping and pickup. Ratings are based on a piping and pickup allowance of 1.15.
3.  Ratings have been confirmed by the Hydronics Institute, Section of AHRI.
MODELS 
(XB/XW)
SUPPLY VOLTAGE 
(VOLTS)
FREQUENCY 
(HZ)
CURRENT 
(AMPS)
ELECTRICAL NOTES
1000
120
60
30
A dedicated, single phase, 30/60 amp circuit breaker 
with a grounded neutral should be provided to supply 
power to the boiler.
1300
120
60
30
1700
120
60
30
2000
120
60
60
A dedicated, single phase, 60/60 amp circuit breaker 
with a grounded neutral should be provided to supply 
power to the boiler.
2600
120
60
60
3400
120
60
60
ELECTRICAL REQUIREMENTS
TABLE 6.  ELECTRICAL REQUIREMENTS