Page 105
Brute Elite Boilers and Water Heaters
Code Description
L or
H
Procedure
108
Flame lost in run
L
1. Check main valve wiring and operation -
correct any errors.
2. Check the fuel supply.
3. Check fuel pressure and repeat turndown tests.
4. Check ignition transformer electrode, flame
detector, flame detector siting or flame rod
position.
5. If steps 1 through 4 are correct and the fault
persists, replace the module.
109
Ignition failed
L
1. Check main valve wiring and operation -
correct any errors.
2. Check the fuel supply.
3. Check fuel pressure and repeat turndown tests.
4. Check ignition transformer electrode, flame
detector, flame detector siting or flame rod
position.
5. If steps 1 through 4 are correct and the fault
persists, replace the module.
110
Ignition failure occurred
H
Hold time of recycle and hold option. Will not be
a lockout fault. Hold Only. Internal hardware test.
Not a lockout.
111
Flame current lower than weak
threshold
H
Hold time of recycle and hold option. Will not be
a lockout fault. Hold Only. Internal hardware test.
Not a lockout.
113
Flame circuit timeout
L
Flame sensed during Initiate or off cycle, hold 240
seconds, if present after 240 seconds, system will
lockout.
119
Control Interaction Fault
H
Flap valve identifications configured incorrectly.
122
Lightoff rate proving failed
L
1. Check wiring and correct any potential wiring
errors.
2. Check VFD’s (Variable-speed Fan Drive)
ability to change speeds.
3. Change the VFD
4. If the fault persists, replace the module.
123
Purge rate proving failed
L
1. Check wiring and correct any potential wiring
errors.
2. Check VFD’s (Variable-speed Fan Drive)
ability to change speeds.
3. Change the VFD
4. If the fault persists, replace the module.
128
Fan speed failed during prepurge
H or
L
1. Check wiring and correct any potential wiring
errors.
2. Check the VFDs (Variable-speed Fan Drive)
ability to change speeds.
3. Change the VFD
4. If the fault persists, replace the module.
Summary of Contents for BNTH1000
Page 2: ...Bradford White Corp...
Page 12: ...Page 8 Bradford White Corp Fig 6 Dimensions BNT 1700...
Page 38: ...Page 34 Bradford White Corp Fig 21 Ladder Diagram...
Page 39: ...Page 35 Brute Elite Boilers and Water Heaters Fig 22 Wiring Diagram...
Page 40: ...Page 36 Bradford White Corp...
Page 52: ...Page 48 Bradford White Corp Fig 51 Connection Terminals...
Page 130: ...Page 126 Bradford White Corp Fig 141 Rear Panel BNT1000 Fig 142 Rear Panel BNT1700...
Page 131: ...Page 127 Brute Elite Boilers and Water Heaters Fig 143 Machine Frame BNT1700...
Page 132: ...Page 128 Bradford White Corp Fig 144 Front Panels and Covers BNT1000 and BNT1700...
Page 133: ...Page 129 Brute Elite Boilers and Water Heaters Fig 145 Burners and Combustion Chamber BNT1000...
Page 134: ...Page 130 Bradford White Corp Fig 146 Burners and Combustion Chamber BNT1700...
Page 136: ...Page 132 Bradford White Corp Fig 149 Burner Detail BNT1700...
Page 139: ...Page 135 Brute Elite Boilers and Water Heaters This page intentionally left blank...
Page 140: ...Page 136 Bradford White Corp This page intentionally left blank...