Component Descriptions
06-237619-001 2-5 April 2020
2-3.3 Release Units
Release units connect to the gauge port of the primary cylinder and are used to release
the agent to the piping system. Release units can be electric operated only or
manual/electric. The supervisory pressure switch on the gauge is designed to change the
contact state when the pressure falls below 160 bar (2320 psi) for 200 bar (2900 psi)
cylinders and 240 bar (3480 psi) for 300 bar (4350 psi) cylinders.
Note: When installed and if possible, the release unit should be on the left most cylinder, pro-
tected under the manifold.
Release units that include manual operation have a tamper proof seal on the operation pin.
Replacement seals are included in the Release Unit Service kit, P/N: 38-400001-010.
Note: Release unit solenoids must be continuously powered during system discharge.
Figure 2-5. Release Unit
Part Number
Pressure
Rating
Operation Contact
38-400001-001 200 Bar Manual/Electric Normally Open
38-400001-003 300 Bar Manual/Electric Normally Open
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