Installation Manual

Electrical & Electronic Application And Installation Manual
Production Release Version 1.0
Page 88
8.0 1206F Connecting To The Engine Aftertreatment
This section provides connection details for all IG CEM unit components,
which require connection back to the engine ECM J1 connector.
8.1 IG CEM
8.1.1 System Architecture
The Perkins Integrated CEM unit comprises of a DOC, DPF Can as well as
the SCR catalyst unit contained within one package. The DOC and DPF is
required to trap the particulate matter output from the engine exhaust whilst
the SCR catalyst is used to control the NOx levels output from the machine
tailpipe. To successfully manage the engine NOx out the SCR catalyst works
in conjunction with Diesel Exhaust Fluid (DEF), which is a solution of solid
Urea and water.
Figure 8.1 IGCEM Module