Kidde Fire Systems Surge Protector P/N 81-CO2MAN-001 Manuale Utente

P/N 81-CO2MAN-001

B-3

September 2013

Figure B-2.  3-Well Mercury Check - Installation Detail

The mercury check is required for applications that use more than five HAD detectors.

The installation procedure for the mercury check is as follows:
1. Remove seal wire.
2. Remove the cover from the enclosure.
3. Route tubing from the pneumatic detectors into the mercury check box. Secure box to the 

installation area using suitable attaching hardware. Ensure that the box is upright and 

level.

4. Secure conduits to the box using conduit nuts.
5. Route the 3/16-inch tubing from the pneumatic control head through a grommet into the 

mercury check box.

6. Fill mercury wells as follows:
7. The proper vent size and well setting is predetermined for each installation and can be 

found on the layout drawing supplied with each system installation.

8. Unscrew two mounting screws and remove the transparent plastic body from the box.
9. Remove plastic caps from vent ports. Insert funnel Part No. 207635 (supplied), and slowly 

fill each well with the full contents of a single vial of mercury. Make certain no mercury 

enters tubing.