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Installation
T
-C
HROUGH
ONNECTING
The method of through-connecting bypasses the housing and connects the pairs through the base. This allows
enclosure cable pairs to bypass the housing and be extended through it for access downstream from the HRE-819.
Through-connecting is accomplished by mating the 710-type connectors in the base as shown in
maintenance pairs that terminate in J105 are not connected through.
I
D
NSTALLING
OUBLERS AND
To avoid injury and possible damage to the HRE-819, two people should remove it from its
container: one person should handle the enclosure, the other should handle the stub.
1
For List 2 units, close the air bypass valve by turning the air bypass valve counter-clockwise
from the housing.
2
Depressurize the unit by removing the valve core (pin) in the air stem.
When handling the HRE-819 enclosure, always assume it is pressurized.
3
Remove the two housing lids by loosening all twelve bolts with a
Replace the four desiccant bags (shown in
the desiccant in any empty slot or between occupied slots as space permits. Flash test the
enclosure for leaks each time it is closed.
4
Install the doublers and repeaters into the available slots.
5
Make sure all sealing surfaces are clean and free of dirt and moisture.
6
Place the lids on the housing.
7
Treat the captive bolt threads with the antiseize compound.
14
Cable stub
J105
P102 to J104
Base
Figure 11. Through Connections in Base
R
EPEATERS
Figure
July 9, 1998
P101 to J103
9
/
-inch hand-held hex nut driver.
16
4) each time the housing is entered. Place
150-819-100-03
Figure
11. The
1
/
turn away
4
HRE-819 List 1 and 2
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