![background image](http://html1.mh-extra.com/html/brute/magnatech-bmgh1600/magnatech-bmgh1600_installation-and-operation-instructions-manual_2821473087.webp)
Page 83
MagnaTech
BOILERS AND VOLUME WATER HEATERS
132
Fan speed failed during run
H
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.
137
ILK (Interlock) failed to close
H
1. Check wiring and correct any possible
shorts.
2. Check Interlock (ILK) switches to assure
proper function.
3. Verify voltage through the interlock string
to the interlock input with a voltmeter.
4. If steps 1-3 are correct and the fault
persists, replace the module.
149
Flame detected
H or L
Holds if flame detected during Safe Start
check up to Flame Establishing period.
150
Flame not detected
H
Sequence returns to standby and restarts
sequence at the beginning of Purge after
the HF switch opens if flame detected during
Safe Start check up to Flame Establishing
period.
154
Purge Fan switch On
H or L 1. Purge fan switch is on when it should be
off.
2. Check wiring and correct any errors.
3. Inspect the Purge Fan switch J6 terminal
3 and its connections. Make sure the switch
is working correctly and is not jumpered or
welded.
4. Reset and sequence the relay module.
5. If the fault persists, replace the relay
module.
Code Description
Procedure
155
Purge fan switch OFF
H or L 1. Purge fan switch is off when it should be
on.
2. Check wiring and correct any errors.
3. Inspect the Purge Fan switch J6 terminal
3 and its connections. Make sure the switch
is working correctly and is not jumpered or
welded.
4. Reset and sequence the relay module.
5. If the fault persists, replace the relay
module.
Содержание MagnaTech BMGH1600
Страница 4: ...BRADFORD WHITE ...
Страница 35: ...Page 31 MagnaTech BOILERS AND VOLUME WATER HEATERS ...
Страница 98: ...Page 94 BRADFORD WHITE 1 13 12 4 3 5 13 2 15 Final Assembly DETAIL A 9 10 8 Final Assembly ...
Страница 110: ...Page 106 BRADFORD WHITE 6 2 7 11 1 5 4 12 10 3 3 8 9 6 Control Panel Assembly ...
Страница 114: ...Page 110 BRADFORD WHITE 7 8 15 14 9 4 16 12 5 1 6 2 11 AC DISTRIBUTION BOX ASSEMBLY PART NUMBERS MODELS 2500 AND 3500 ...