Blodgett BCX14G Troubleshooting Manual page 107

~ Boiler Float Level Troubleshooting ~
# Components Testing
1 ( IFB ) Relay Board
( IFB ) Relay Board
2
(Hi_Lvl Float Closed)
( IFB ) Relay Board
3
(Hi_Lvl Float Open)
( IFB ) Relay Board
4
(Lo_Lvl Float Closed)
( IFB ) Relay Board
5
(Lo_Lvl Float Open)
( IFB ) Relay Board
6
(Hi_Lvl Float Closed)
( IFB ) Relay Board
7
(Lo_Lvl Float Closed)
~ Drain Valve Troubleshooting ~
# Components Testing
1 ( IFB ) Relay Board
( IFB ) Relay Board
2
(Drain Valve Closed)
( IFB ) Relay Board
3
(Drain Valve Closed)
( IFB ) Relay Board
4
(Drain Valve Open)
( IFB ) Relay Board
5
(Drain Valve Open)
~ Steam on Demand Troubleshooting ~
# Components Testing
1 BCX2 (Logic Board)
2 BCX2 (Logic Board)
~ Delime Pump Troubleshooting ~
(Activated by Steam on Demand Switch in Cool Down Mode)
# Components Testing
1 BCX2 (Logic Board)
2 BCX2 (Logic Board)
3 ( IFB ) Relay Board
4 ( IFB ) Relay Board
( IFB ) Relay Board /
5
Delime Pump
6 Delime Pump
Test Points
Black lead
J8 Connector (J8-2) BK-4
J8 Connector (J8-2) BK-4
J8 Connector (J8-2) BK-4
J8 Connector (J8-2) BK-4
J8 Connector (J8-2) BK-4
J8 Connector (J8-5) V-5
(To Fill Solenoid)
J8 Connector (J8-6) Bl-10
(To Fill Solenoid)
Test Points
Black lead
J8 Connector (J8-2) BK-4
J8 Connector (J8-9) Y-9
J8 Connector (J8-8) OR-17
J8 Connector (J8-8) OR-17
J8 Connector (J8-9) Y-9
Test Points
Black lead
J3 Connector (J3-7) BL-1
(Activated Switch)
J4 Connector (J4-3) V-2
Test Points
Black lead
J3 Connector (J3-7) BL-1
(Activated Switch)
J4 Connector (J4-3) V-2
J8 Connector (J8-2) BK-4
J8 Connector (J8-11) V-13
(IFB) J8 Connector (J8-2) BK-4
(V-13)
107
Red Lead
J8 Connector (J8-1) RD-4
J8 Connector (J8-3) V-3
J8 Connector (J8-3) V-3
J8 Connector (J8-4) BL-6
J8 Connector (J8-4) BL-6
J8 Connector (J8-1) RD-4
J8 Connector (J8-1) RD-4
Red Lead
J8 Connector (J8-1) RD-4
J8 Connector (J8-1) RD-4
J8 Connector (J8-1) RD-4
J8 Connector (J8-1) RD-4
J8 Connector (J8-1) RD-4
Red Lead
J1 Connector (J1-4) RD-1
J1 Connector (J1-4) RD-1
Red Lead
J1 Connector (J1-4) RD-1
J1 Connector (J1-4) RD-1
J8 Connector (J8-1) RD-4
J8 Connector (J8-1) RD-4
Pump Connector (RD-12)
(RD-12
Voltage AC
+ DC
24 VDC
24 VDC
0 VDC
24 VDC
0 VDC
24 VDC
24 VDC
Voltage AC
+ DC
24 VDC
24 VDC
0 VDC
24 VDC
0 VDC
Voltage AC
+ DC
24 VDC
24 VDC
Voltage AC
+ DC
24 VDC
24 VDC
24 VDC
24 VDC
24 VDC
24 VDC