CONNECTIONS OF INITIATING DEVICES AND ACCESSORIES (cont’d)

W I R I N G

CAUTION

Relay Module Installation

In lieu of smoke detectors, the release device may be put into alarm by the fire alarm control panel. Most commonly, a relay module is used as an interface between the fire alarm control panel and the release device. The relay module must provide Form C dry contacts for connection to the appropriate terminals on the release device (Figure 7).

NOTE: When choosing a relay module to activate the release device in an alarm condition, always select one that provides Form C dry contact relays. Do not use any relay module providing or passing any (control) voltage through the contacts into the release device. The passage of voltage through such a relay module into the release device will cause problems with the operation of the device and may damage the device’s terminals and/or circuit board.

OPTIONAL CONNECTIONS

CLOSE DOOR DETECTION OPTION

Connect wiring from N/O electrical loop, using a proximity switch or other similar device with dry contacts, to 7 and 8 (Figure 8). The switch should be placed to engage when the door is in the closed position and so that it will toggle states from its N/O condition (switch closed when door is closed) to a closed condition indicating that the door edge has made contact with desired down position. When the switch is closed by contact from the door, the release device will not activate on alarm, thereby eliminating nuisance gravity drops through the inadvertent release of the fusible link assembly. This option only works as long as power is available to unit. Fail-safe operation is maintained under all operating conditions, and if power is not available to the unit, the fusible link assembly will be released. This is a power-limited, unsupervised circuit. The proximity switch and the release device MUST be mounted in the same room.

RELAY AND TROUBLE OUTPUTS OPTION

To prevent DAMAGE to the circuit board, ALL connections from terminals 3 through 16 MUST be dry contact type.

FIGURE 7

 

 

 

 

 

 

 

 

 

 

 

 

Relay Module

 

Red

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

Common

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

– Fire Alarm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Black

 

Control Panel

6Normally Closed

+

Terminal Strip

FIGURE 8

7

 

Attach to Common on

 

 

 

 

N/O Proximity Switch

Proximity Switch

 

 

 

 

 

8

 

Attach to N/O Position

Part No. LM56A

 

 

 

on Proximity Switch

 

 

 

 

 

 

 

 

FIGURE 9

11N/C Alarm Relay Output

12Common

 

 

 

 

 

Make all necessary

 

 

 

 

 

13

 

N/O Alarm Relay Output

 

connections to the

 

 

 

Fire Alarm Panel as

 

 

 

 

 

 

 

 

 

 

required by the project

 

 

 

 

 

14

 

N/C Trouble Output

 

specifications and

 

 

 

the Authority Having

 

 

 

 

 

 

 

 

 

 

Jurisdiction

 

 

 

 

15Trouble Common

16N/O Trouble Output

Connect wiring from the Alarm Relay Outputs (#11 N/C or #13 N/O and #14 Common) to the appropriate inputs on the fire alarm control panel to provide a signal at the panel when the release device is in an alarm state. Connect wiring from the Trouble Relay Outputs (#14 N/C or #16 N/O and #15 Common) to the appropriate inputs on the fire alarm control panel to provide a signal at the panel that the release device is in a trouble state (Figure 9). If these features are desired, coordinate the interconnection between the Release Device and the Fire Alarm Control Panel with the fire alarm installer.

8