Siemens GC..M.. Manual de instalación descargar pdf (Pagina 21)

Installing Primary AC Power, Continued

Installation Procedure

To install primary AC wiring, perform the following procedures:

 Shut off the primary AC power supply line to this location.

 Open the front door of the Electronic Enclosure (if locked, use a 4 mm Allen wrench to unlock it.)

 Install circuit breaker, conduit and primary AC wiring appropriate for the area safety classification.

The breaker should be located near to the Maxum II. Label the Breaker to make sure that the

circuit is clearly identifiable. See Application Drawing Package Block & Utility Diagram sheet for

power requirements.

 Run the 12 AWG (115 VAC) or 14 AWG (230 VAC) wiring through a cable gland or conduit (per

local codes) to the Electronic Enclosure interior. Allow enough extra cable to be run into the

Electronic Enclosure to be certain it reaches the Power Entry Control Module (PECM) Connector

TB1. Use enough cable so that there will be no sharp cable bends when the terminations are

made.

TB2 & TB10 Connections

The TB2 connector permits installation of a second AC power source for powering air bath heater #2 and

low wattage heaters. The TB10 connector permits installation of a separate UPS power source for the

Maxum II electronics exclusive of the heaters or alternately may be wired to the power source for TB-1.

Each secondary power source must have its own explosion proof circuit breaker, ½” (1.26 cm) conduit

with Myers Hub, and 12 AWG wiring for 115 VAC or 14 AWG for 230 VAC. To connect AC wiring to TB2

and TB10, repeat the procedural steps for PECM connector TB1 as specified in the Application Drawing

Package, Block Diagram Utility Connections, and Arrangement Drawing Electronics Controller sheet.

Figure 2-3. AC Power Entry to TB1 on Power Entry Control Module (PECM)

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Siemens GC..M.. Manual de instalación Pagina 21