Emerson XEV22D Dokumentacja Pobierz pdf (Strona 10)

4 • XEV22D I&O Manual 026-1206 Rev 3 13-DEC-2012

5 Mounting and

Powering

The XEV22D is usually mounted by the Refriger-

ation equipment manufacturer. Therefore, the install-

er need only make the necessary connections between

the boards and the site controller(s).

In some instances, an installer may be required to

mount the XEV22D. There are no restrictions on the

location of the XEV22D; however, the controller

should be mounted in a location protected from mois-

ture. Typically, mounting inside the electrical control

panel of a package unit is acceptable.

5.1. Installation

The XEV22D uses a DIN mount installation.

5.2. Powering the XEV22D

Retail Solutions supplies a wide variety of 24VAC

transformers with varying sizes without center taps.

Table 5-2 shows the transformer sizes and are non

center-tapped.

5.2.1. Choosing Transformer Sizes

The transformer used to power the XEV22D

should have at least a 20VA rating. The XEV22D

should not share a transformer with any other de-

vices.

Figure 5-1 - DIN Mounting

Mount: On a DIN rail (EN 50022,

DIN 43880) Fastened with

screws via the removable

plastic flaps

Material: PC-ABS Thermoplastic

Self-extinguishing: VO (UL94)

Comparative Tracking

Index (CTI):

300V

Color: Gray

Table 5-1- XEV22D Enclosure Specification

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 35 36

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Emerson XEV22D Dokumentacja Strona 10