Harrington Signal HS-3200 - Install Manual - Manual (Page 19)

HS-3100/3200 Installation Manual
13
3.3 Internal Assembly
• Attach AC wiring to the AC Terminal Block (see Figure 4 on page 16). Attach green
ground wire to ground screw on backplate.
• Place the batteries in the bottom right of the back box or into the battery box. DO NOT
ATTACH BATTERIES UNTIL AFTER THE AC POWER HAS BEEN TURNED ON.
• Attach conduit to the back box as required using knockouts provided. Attach field wiring to
the system. The section below describes how each type of circuit is to be wired. Attach
conduit to the back box as required using knockouts provided. It is recommended that
input circuit wiring be physically separated from output circuit wiring.
• Have the Unit inspected before applying power. Correct and re-inspect any problems
found.
• Turn on the AC power to Unit. If no problems occur other than Low Battery, attach the
batteries to the wires provided, the black wire to the black (negative) terminal and the red
wire to the red (positive) terminal. If the batteries need charging, the Low Battery condition
will remain until they are charged.
• Figure 2 shows the areas of the cabinet in which power limited/non-power limited wiring
may be routed. Note that the location labeled Option Card 1 is not for the City (HSCTYB).
There is a location above Option Card 1 that is used for this card. Figure 3 shows the
routing of power limited wiring to a city module.
Notes:
•
Do not apply power to the unit until all doors, cables and wiring are installed and inspected.
• This AC circuit must be a separately fused 20A dedicated circuit. It is recommended that the
breaker be locked in the OFF position during installation.
Vbell 3
Mainboard
Non Power Limited
Power Limited
Vbell 2 Vbell 1
Option Card 1
Option Card 2
Option Card 3
Power Limited
Figure 2: Power Limited Wiring Diagram