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EH8006ORKIT and EH8008ORKIT
O-Ring Replacement Kits for
EH8106 and EH8108 Series
Pressurized Camera Enclosures
Installation Instructions
C1952M (11/98)
®
1. Turn off power to the enclosure.
2. Remove the mating connector from the rear of the enclosure by turning the
outer ring counterclockwise until a click is felt; then pull the mating portion of
the connector off. You may elect to remove the enclosure from its mount which
will make the disassembly process much easier.
3. Remove the Schraeder valve cap.
4. Relieve internal enclosure pressure by depressing and holding down the center
stem of the Schraeder valve.
5. Once the internal pressure has been relieved, use a screwdriver to pry the
end of the spiral retaining ring from the retaining ring groove in the rear of the
enclosure body and remove the ring.
6. Pull the T-handle to remove the rear plate from the housing.
7. Remove the desiccant bags inside the enclosure and replace them with the
two bags from the kit.
8. Remove the O-ring from the groove in the enclosure rear plate and discard.
Be careful not to damage or score the O-ring groove. Clean the O-ring groove
thoroughly.
9. Lubricate the new O-ring with the lubricant in the kit and install it in the groove
in the enclosure rear plate.
10. Place the rear plate into the rear of the enclosure body. Apply additional lubricant
to the new O-ring, if necessary, and ensure it remains in the correct position.
11. Reinstall the spiral retaining ring in the retaining ring groove in the rear of the
enclosure.
12. Pressurize the inside of the enclosure using the EH8000RKIT recharge kit.
Connect the regulator to the tank by threading the nut into the socket of the
tank valve and tighten with a wrench. The regulator is preset for 5 psi. Exceeding
5 psi pressure will damage the enclosure.
13. Once the regulator has been attached to the tank, open the regulator valve
fully, then open the tank valve.
14. Using the self-holding air chuck, apply pressure to the enclosure by affixing
the air chuck to the Schraeder valve on the rear of the enclosure.
15. Remove the plastic cap from the pressure relief valve on the rear of the enclosure.
(Use a small flat screwdriver to hold it open.) At this point, allow the nitrogen to
flow through the enclosure until the humidity indicator registers the lowest humidity
level (changing color from pink to blue). The humidity indicator can be viewed
through the front window of the enclosure looking at the inside top of the enclosure.
Once the humidity indicator registers the lowest level, remove the screwdriver
and allow nitrogen to continue to flow into the enclosure until you no longer hear
the flow of nitrogen from the tank to the enclosure.
16. Remove the air chuck from the Schraeder valve and reinstall the valve cap.
Reinstall the plastic cap on the pressure relief valve. The enclosure is ready
for service.
WARNING:
Pressure
must be released before
opening the enclosure or
personal injury may
result.
CAUTION:
If recharg-
ing equipment other than
the EH8000RKIT re-
charge kit is used, do not
exceed 5 psi. Exceeding
5 psi pressure will
damage the enclosure.
NOTE:
The EH8000RKIT recharge
kit uses a regulator that has a fixed,
nonadjustable output pressure of
5 psi. The gauge reads the tank pres-
sure only. This can be used to deter-
mine how much pressure is left in the
tank after each recharge and when it
is necessary to replace the tank.
NOTE:
The kit contains two O-rings.
The second one is a spare.
TIP:
Having the window of the
enclosure pointing upward will greatly
reduce the purge time necessary to
remove oxygen from the enclosure.
1.0 INSTALLATION
Pelco • 3500 Pelco Way • Clovis, CA 93612-5699 • USA • www.pelco.com
In North America and Canada: Tel (800) 289-9100 • FAX (800) 289-9150
International Customers: Tel (1-559) 292-1981 or FAX (1-559) 348-1120