Chapter 4 – Smoke Control Section, Page 4-26__________________________________________________
Smoke Control – Troubleshooting (Cont.)
Transformer Voltage Test – (Cont.)
B.
Collector Voltage Test
1)
Disconnect the high voltage wires from the power supply points “COLL” and “ION” (Refer to
Figure 4-26-1 and 4-26-2).
2)
Set selector switch on volt meter to the highest DCV scale.
3)
Tape the Door Safety Switch closed.
4)
Push in and hold the Plunger Safety Switch.
5)
Place probe or clip labeled "common" against “ground” connection on the power supply.
Place high voltage probe against the “COLL” connection point. Voltage should be 4,700 to
5,500 DC.
If voltage is below 4,700, it indicates that the power supply module is defective and must be
replaced. Refer to the Parts Chapter of this manual.
Figure 4-26-1
Ionizer Voltage Test
Figure 4-26-2
Collector Voltage Test
Ground
Ground
“ION”
Connection
“COLL”
Connection
