Service manual

Installation
58
DCB, DCFCB and DCFCTB Models
AC Power Connections
TO PREVENT DAMAGE TO THE CONTROL UNIT, DO NOT CONNECT
240VAC POWER WITHOUT A MODEL –240B STEP DOWN TRANSFORMER.
1. As shipped from the factory, the Control Unit is configured for 120 VAC
operation. The AC selector switch, S7 on the siren control board, must be set to
the 120 VAC position (refer to -240B Wiring on page 80 for operation at
240 VAC or 2001TRB Wiring on page 74 if the 2001TRB option is used).
2. After drilling or punching an appropriate sized hole in the bottom of the Control
Unit cabinet, install a user supplied 1/2” electrical conduit fitting. Route 1/2”
conduit (steel preferred) between a user-supplied fused disconnect switch and
user-supplied conduit fitting in the bottom of the Control Unit cabinet.
3. Route three user-supplied wires through the conduit that was just installed
between the Control Unit and the fused disconnect switch. Use 14 AWG wire or
larger.
4. Connect Neutral (white wire) from service disconnect to F1 on the DIN rail in
Control Unit cabinet (refer to Figure 10 DCFCTB Wiring Diagram, Figure 11
DCB Wiring Diagram, or Figure 12 DCFCB Wiring Diagram).
5. Connect Line (black wire) from service disconnect to F2 on the DIN rail in
Control Unit cabinet (refer to Figure 10 DCFCTB Wiring Diagram, Figure 11
DCB Wiring Diagram, or Figure 12 DCFCB Wiring Diagram).
6. Connect Ground (green wire) from service disconnect to the green ground block
on the DIN rail in Control Unit cabinet (refer to Figure 10 DCFCTB Wiring
Diagram, Figure 11 DCB Wiring Diagram, or Figure 12 DCFCB Wiring
Diagram). A small screwdriver must be pushed into the square opening in the
terminal block to open the contacts of this block.
7. Follow the instructions included with the lightning protector (supplied) and install
it in the service disconnect.
8. Size fuse or circuit breaker in service disconnect to 15 Amps max.
Battery Installation and Wiring
1. Install the batteries in the Battery Box, per illustration Figure 13 Battery
Positioning and Wiring, taking care not to touch the battery terminals against
cabinet. It may be necessary to temporarily relocate the wiring in the enclosure
before installing the batteries. The polarity of the battery terminals is clearly
marked on the battery case. See Figure 13 Battery Positioning and Wiring for
correct orientation. (For optional battery warmers, refer to the Model HTR2 and