Specifications

PCA
®
3
87
Sensor Positions
Model
Position
225 235 245 255 265 275
#1 O
2
O
2
O
2
O
2
O
2
O
2
#2 CO
Low
CO
Low
CO
Low
CO
Low
CO
Low
CO
Low
#3 SO
2
NO
2
SO
2
#4 NO CO
High
NO NO
Sensor Retainer
Purge Pump
Gas Pump
GAS
Purge Air In
Pressure
¨3 ±¨3
Battery & Pump
Chassis
Hose Connector
Plate
Purge Pump
Motor Connector
Gas Pump
Motor Connector
Sensors
Type and position
determined by
model number
Battery Connector
on printed circuit board
Pressure Sensor
on printed circuit board
¨3 (Top)
±¨3 (Bottom)
Figure 6-2. Inside View with Rear Case Removed