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IR Impact™ Options for Oil Safety Control
A. Using a Standard Mechanical Oil Pressure Safety Control (Penn or Danfoss MP54)
1.
As an alternate to the P545 switch a standard differential oil switch may be used.
2.
The switch should be a fixed differential type with a 90 second time delay with a 9-psi differential
pressure.
3.
When using the mechanical oil differential safety switch follow the diagram in Figure 30.
4.
Connect the "OIL" pressure line to the fitting marked with the "+" sign, and the "Low" pressure
line to the fitting marked with the "
L 1
C o m p ress or
O n - O ff
1
H ig h P re ssu re
F ie ld In sta lle d W ire
Hussmann Aftermarket
-
" sign on the oil pump housing (see Figure 33).
R a ck C on trolle r
O u tp u t P oin t
L o w P ressure
C o n tro l
C o n tro l
Figure 30
page 14 of 18
O il
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A
M
L
24 0 V
M ec h a nica l O il C o n tro l
SE-B
P ro te ctio n D e vice
N
12
L
1 1
14
1 2
T h erm istor
J um p er
T erm in a ls
L 2
C o m p re s so r
C o nta ctor
C
2
2
A larm O u t
4/7/2006
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