5.13
The trouble buzzer (Figure 5-5) is field installed.
5.14
Connect the trouble buzzer directly to the detector cabinet using a conduit bushing or nipple not exceeding six
inches (6") in length.
5.15
The trouble buzzer is wired (minimum 18 AWG) to TB7-9 and TB7-10. (Polarity need not be observed) (see
Figure 5-8).
5.16
A common signal device buzzer (Figure 5-5) is field installed at the repeater cabinet, either 24 or 48 line size.
5.17
The common signal device may be installed inside the cabinet by bolting to the inside panel or outside by using a
conduit bushing or nipple not exceeding six inches (6") in length.
5.18
The common signal device is wired (minimum 18 AWG) to TB3-1 and TB3-2. (Polarity need not be observed).
5.19
One 8" smoke bell (Figure 5-6) must be installed in the engine room.
5.20
One 8" smoke bell (Figure 5-6) must be installed in the wheelhouse.
5.21
Figures 5-7 and 5-8 are the point-to-point field connection diagrams for a 24-line (maximum) system showing the
actual terminal block designations of the various wiring connections.
5.22
Figures 5-2 is the electrical flow diagram for a 48-line (maximum) system.
5.23
After mechanical and electrical installation is completed, the blower cabinet must be adjusted (see Figure 5-4).
5.24
All CO2 3-way valves must be in the detecting position.
5.25
Insert a tube in the small hole in the center of the bottom of the blower box and attach it to a water manometer or
inclined draft gauge capable of measuring up to two inches of water.
5.26
Operate Blower M1 and adjust the pressure in the blower cabinet to 1-3/4 1/4 inches of water by turning the
"adjust" screw (Figure 5-4) and lock with the lock screw on top of the cabinet.
5-2
