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MODEL TCL SECTION 4
WIRING
SECTION 4. WIRING
4.1 GENERAL
WARNING
Electrical installation must conform to the National Electrical Code, all state and local codes, and all plant
codes and standards for electrical equipment. Electrical installation and wiring must be done by qualified
personnel.
The five holes in the bottom of the instrument case accept 1/2-in. strain relief connectors or conduit fittings. The
rear openings are for power and alarm relay wiring. The left front opening is for sensor wiring and the right front
opening is for analog output wiring. Seal unused openings with conduit plugs.
4.2 PROVIDE POWER TO THE SAMPLE CONDITIONING SYSTEM
NOTE
Provide a switch or breaker to disconnect the sample conditioning cabinet from
the main power supply. Install the switch or breaker near the unit and identify if as
the disconnecting device for the sample conditioning system.
1. Be sure the pump switches on the wiring access panel are in the off position.
2. Remove the four screws securing the wiring access panel. Pull the panel out of the way to reveal the power
terminal strip.
3. Insert the power cable through the
strain relief connection labeled
power (see Figure 3-7). Wire the
power cable to the terminal strip as
shown in Figure 4-1. Do not apply
230 Vac power to a 115 Vac TCL
(Model option -11). Doing so will
damage the instrument.
4. Leave the pump power switches
off until ready to start up the unit.
See Section 5.
NOTE
The Model 54eA analyzer leaves the factory configured for use with the Model 499ADO oxygen sensor.
Because a 499ADO sensor is NOT used in the TCL system, turn to Section 7.5 and configure the analyz-
er to read total chlorine before wiring the sensor to the analyzer. Operating the analyzer and sensor for
longer than five minutes while the analyzer is improperly configured will greatly increase the stabilization
time for the sensor.
Be sure to turn off power to the analyzer before wiring the sensor.
FIGURE 4-1. Power Wiring
WARNING: RISK OF ELECTRICAL SHOCK
AC connections and grounding must be in compliance with
UL 508 or local electrical code. DO NOT apply power to the
analyzer until all electrical connections are verified and secure.
Model option -11 115 Vac only
Model option -12 230 Vac only