Installation
April 2020 4-50 06-237619-001
4-23 MAIN TO RESERVE TRANSFER SWITCH
The main to reserve transfer switch is used in the system to toggle the connection between the
electrical release units installed on the main or reserved cylinders. For electrical wiring with a
single electrical release unit, refer to Figure 4-40 and for two electrical release units, refer to
Figure 4-41. The transfer switch is generally installed at the cylinder bank.
However, should the cylinder banks be installed within the risk, then the main and reserve
switch must be installed outside. For EU applications the switch will be of a key type and the
key to be kept adjacent to the switch within an emergency "break-glass" key holder
Figure 4-40. Wiring Diagram with Single Solenoid (Main and Reserve)
Figure 4-41. Wiring Diagram with Dual Solenoid (Main and Reserve)
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RESERVE
MAIN
M/R TRANSFER
SWITCH
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RELEASE
CIRCUITS
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RESERVE
MAIN
RESERVE
MAIN
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M/R TRANSFER
SWITCH
RELEASE
CIRCUITS
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