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7.2.1 V
Shortly after Ignition
set
Immediately after ignition the power unit warms and the resulting temperature rise pro-
duces power.
Follow these steps to check V
a)
Consult the data plate
inside TEG door for
the reference V
voltage and deter-
mine the required
V
for the present
set
ambient temperature.
See Sections 7.1.1,
or 7.1.2.
b)
Move the jumper clip
on the terminal block
TB-1 to the SETUP
position, i.e. between
terminals 2 and 3.
See Figure 14 or 15.
c)
Connect a voltme-
ter between termi-
nals 2 (+) and 4 (-).
This is the measured
V
, and should tend
set
towards the required
V
(determined in
set
"a"). It will climb as
shown in Figure 20.
Caution:
d)
The measured V
least one hour for this voltage to level out. When the measured V
changes (±0.2 V in ten minutes) compare this value with required V
sured V
Note: Typically, if the measured V
needs to be reduced.
Gentherm Global Power Technologies
5220
after ignition:
set
set
Do not allow the measured V
will result and may cause irreparable damage to the power unit.
will rise quickly at first then begin to level out. It will take at
set
should be within 0.2 V of the required V
set
Figure 20 V
versus Time After Ignition, Typical
set
to exceed the required V
set
is greater than required V
set
28142 Rev. 14
Response
. Overheating
set
set
then the fuel pressure
set
no longer
set
. The mea-
set
7-4
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