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C1407M-G (12/04) 7
RECHARGING THE ENCLOSURE
You may use your own charging equipment or Pelco’s EH8000RKIT to recharge the enclosure. If you are using your own equipment, adjust the
regulator for an output pressure of 12 psi (83 kPa). If you are using the EH8000RKIT, it uses a regulator with a fixed, nonadjustable output pres-
sure of 12 psi (83 kPa). The gauge reads the tank pressure only.
Refer to Figure 1 and do the following to pressurize the inside of the enclosure with nitrogen:
1. Open the tank valve of the charging kit.
2. Remove the cap from the enclosure’s Schraeder valve and then attach the air chuck from the charging equipment to the valve.
3. To reduce the purge time necessary to remove air from the enclosure, position the enclosure so that the window is pointing up.
4. Remove the plastic cap on the pressure relief valve on the rear of the enclosure. Use a small screwdriver and hold the valve open. 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.
5. Remove the charging equipment air chuck from the Schraeder valve. Replace the Schraeder valve and pressure relief valve caps.
POWER CONNECTION
1. Connect ground wire to the ground stud on the back of the enclosure.
2. Connect the mating connector to the rear of the enclosure.
Operation
The heaters are thermostatically controlled to come on at 40°F (4°C) and go off at 60°F (16°C).
Maintenance
At a minimum, the enclosure should be recharged once a year. Also, recharge the enclosure after opening for servicing. See the Servicing section
for instructions on how to disassemble, reassemble, and charge the enclosure.
ACCESSORIES
EH25/8104ORKIT O-ring kit, including desiccant bags, for EH8104.
EH8006ORKIT O-ring kit, including desiccant bags, for EH8106/EH8106L.
EH8000LUBE O-ring lubrication kit for EH8100 Series.
EH8000RKIT Dry nitrogen recharging kit for EH8100 Series. Kit includes pressure regulator and nitrogen.
PSKIT8100 Pressure sensor kit with contact closure that can be wired to trigger an alarm if enclosure’s internal pressure falls below
5 psi.