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Day Tank Operation
DEF Tank Operation
The auxiliary Diesel Exhaust Fluid (DEF) Tank in figure
below can only be utilized in stand-alone mode with
automated pump control for refueling.
The auxiliary Diesel Exhaust Fluid (DEF) Tank heater
blanket utilizes a 120 Vac, 50 amp, 3-pin power cable
(figure below) for connection to generators. This cable
provide power for the tank heater blankets, which can be
used with TRS Cummins Tier-4 towable generator models
(140, 180, and 250 kW).
These DEF Tanks utilize a 24 Vdc remote fill system has a
14-pin plug connection (figure below). This 14-pin Deutsch
plug connector is utilized for activating the DEF Tank pump
when the generator DEF falls below 30% capacity, as well
as powers the heated DEF supply hose.
12
DEF Tank Electrical Connections
The 24 Vac, 14-pin Deutsch connector (P/N: HD36-18-14SN)
shall be used for power source connections typically from
2nd generation Cummins model generators (not 1st
generation). An adapter harness is required when TRS
DEF Tanks are paired with 1st generation Cummins model
generators.
1st Generation Cummins generators (100-275 kW
Towable) that have external DEF Connections utilize the 6-
Pin Deutsch connector (P/N: HD34-18-6PN) with pins as
shown in the figure below.
Figure 8.
Pin identification for auxiliary DEF electrical
connector
1
DEF Pump Power Supply, 24 Vdc
2
DEF Pump Ground
3
Not Used
4
Not Used
5
DEF Line Heater Power Supply, 24 Vdc
6
DEF Line Heater Ground
SRV-SVX006C-EN
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