DoorKing 2348 Elevator Control - Manual (Page 19)

2348-065-E-10-11 Page 19
Section 4 – Wiring Information
Prior to installing wiring to the elevator control board(s), we suggest that you become familiar with the
instructions, illustrations, and wiring guidelines in this manual. This will help insure that your
installation is performed in an efficient and professional manner.
The wiring of the elevator control board(s) is an extremely important and integral part of the
overall access control system. Use proper wire for the weigand lines, power wires, and be
sure that the system is properly grounded. Check all local building ordinances and building
codes prior to installing this system. Be sure your installation is in compliance with local
codes. Wiring of this system will have to be coordinated with the elevator service company.
Only qualified elevator service personnel should interface the elevator button relays with the
elevator electronic control panel.
4.1 General Information
Use only the supplied 16 VAC, 40 VA transformer (or U.L. listed equivalent) to power the elevator
control board. One (1) elevator control cabinet (max 4 boards) can be powered from a single
transformer. Do not power any other devices (electric strikes, magnetic locks, etc.) from these power
transformers. For wire runs up to 100 feet, use 18 AWG, 600 volt insulated wire. For wire runs up to
200 feet, use 16 AWG, 600 volt insulated wire. Power wires are susceptible to noise and hum pickup;
therefore it is preferable that you keep power wire runs as short as possible.
The 2348-010 elevator control board contains a number of static sensitive components that can be
damaged or destroyed by static discharges during installation or use. Discharge any static prior to
removing any circuit board from the cabinet by touching a proper ground device.
Proper grounding of this system is a requirement. The use of surge suppressers can significantly
reduce the chance of component failure because of static charges or surges. To be effective, ground
connections should be made with a minimum 12 AWG, 600 volt insulated wire to a ground point
within 10 feet of the system. The ground point must be at an electrical panel, a metallic cold water
pipe that runs in the earth, or a stainless steel grounding rod driven at least ten (10) feet into the soil.
If there are several elevator boards and other components in the access control system in close
proximity to each other, you should consider using a single point ground. Check with your building
department for specific grounding guidelines as soil conditions and grounding requirements differ
depending on your geographical location.
Use low voltage (P/N 1878-010) surge suppressers on low voltage power runs to help protect
equipment from damage because of power spikes and surges. Use DoorKing surge suppressers or
equivalent.
All wires should be placed in conduits. Proper pre-planning can greatly ease the installation and
wiring of this system. Always check with the local building code to determine the type of wire required
in your municipality.