Bradford White Brute BNTH Installation And Operation Instructions Manual page 35

Brute
BOILERS AND VOLUME WATER HEATERS
Figure 27. Control Panel Layout
BOILER
SIZES VOLTS PHASE
199–850 120 Single
No Pump
199-500
With Pump 120 Single than
*
Minimum 15A circuit required
Table 12. BNTH Electrical Data
Boiler
Controller
Operator
interface
MB1 MB2
(HMI)
Figure 28. B AS Connections to a Single
Boiler
PUMP CONNECTIONS
RATINGS
AMPS
(Boiler, System Pump and
DHW Pump Connections)
2* 115V – Maximum 1HP
or 7.4A max
Less
115V – Maximum 1HP
or 7.4A max
6*
Customer
communication
(RS-485)
Figure 29. BAS Connections to a Lead/ Lag System
SIZES
199-500
No pump
199
With pump
285-500
With pump
600-850 See Pump Rating Plate FLA
No pump
*
Minimum 15A circuit required
Table 13. BNTV Electrical Data
Second or
slave
boiler
Controller
Operator
interface
(HMI)
MB1 MB2
WATER HEATER
VOLTS PHASE
120 Single
120 Single
120 Single
(must be less than 7.4 FLA)
Customer
communication
(RS-485)
Com2
Lead or
Master
master
System
boiler
display
Com1
Controller
MB1 MB2
TB3 - 24VAC
TB4 - NEU
Page 31
AMPS
2*
7*
8*