3-7
Figure 3-4 shows wiring for a Part No. 433937 (surface mount) or Part No. 433936 (flush mount)
key maintenance switch. The switch is rated for 1.1 A make/break current at 28 VDC or 6A
continuous carry current at 28 VDC. Locate Part No. 430687 coil supervision module in valve
junction box.
Earth Fault Detection. The detection level for the AutoPulse Z-10 is 10k ohms minimum on all
circuits.
ULC Latching Supervisory Operation. The same as UL Latching Operation, except that zone
location is NOT indicated by the flashing yellow LED.
Figure 3-4. Key Maintenance Switch
Wiring Releasing Circuits,
Continued
Key Maintenance
Switch
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