Installation Manual

Electrical & Electronic Application And Installation Manual
Production Release Version 1.0
Page 82
7.3.2.6 Tenneco XNOx Heated Lines
The DEF system Heated lines are required to prevent DEF from freezing
within the fluid supply and return lines. As with the 1206F engine system,
these DEF lines are provided by Perkins at various lengths to accommodate
the position of the DEF system equipment within the machine design. A table
of the available heated line lengths are shown below in table 7.10.
Line L
ength m
Electrical Connector Key
12V
24V
Pressurised Line (Pump to DEF Injector)
1.5 Key A (W2SA) Key B (W2SB)
2.0 Key A (W2SA) Key B (W2SB)
3.0 Key A (W2SA) Key B (W2SB)
4.0 Key A (W2SA) Key B (W2SB)
Suction Line (From tank to Pump)
1.5 Key C (W2SC) Key D (W2SD)
2.0 Key C (W2SC) Key D (W2SD)
3.0 Key C (W2SC) Key D (W2SD)
4.0 Key C (W2SC) Key D (W2SD)
4.5 Key C (W2SC) Key D (W2SD)
Return Lines (Return to tank from Injector)
1.0 Key A (W2SA) Key B (W2SB)
1.5 Key A (W2SA) Key B (W2SB)
2.0 Key A (W2SA) Key B (W2SB)
Table 7.10 DEF Heated line lengths
Each heated line comes supplied with a two way electrical socket connector
pre wired to the element around the heated line. It is the customers
responsibility to wire each heated line back to the Tenneco XNOx DCU. Each
line is supplied with a 150mm electrical harness length. The cable and
electrical connector are supplied cable tied to the DEF line. It is
recommended that the cable and connector remain cable tied to the line when
installed into the machine as the cable tie acts as a strain relief. If removed
sufficient cable support and strain relief must be provided.
Figure 7.12 DEF Line Electrical Heater Connection
The mating connector required for all heated line connections are shown
below.