Emerson E2 Manual del operador descargar pdf (Pagina 7)

2. Installation Instructions

Emerson Climate Technologies, Inc. requires that all

customers review the recommended guidelines in the

published Application Engineering Bulletins, and

ensure that best engineering practices are followed in

the use of Copeland® brand compressors. Emerson

Climate Technologies, Inc. Application Engineering

Bulletins can be found on our website,

EmersonClimate.com under the section titled “Online

Product Information”. The advice and conclusion by

Emerson Climate Technologies, Inc. represents our

best judgment under the circumstances, but such

advice given and/or conclusion made, or results

obtained shall be deemed used at your sole risk.

2.1 Mounting and Installation

The Intelligent Store™ Discus® compressor is

designed and engineered for use in a supermarket

rack application. Its environmental restrictions are no

different than other Copeland® brand Discus

com-

pressors. As such, the compressor must be in an

equipment room, rack house or roof enclosure to pre-

vent direct precipitation on the compressor.

The following clearance provisions must be

considered when designing the rack for use with an

Intelligent Store™ Discus® compressor:

• Removal of the Intelligent Store™ Discus®

front cover for access to the RS485 communi-

cations network connection.

• Removal of the Intelligent Store™ Discus®

front box for service reasons.

• Opening of the side enclosure (2D / 3D

compressors) for service and for communica-

tions cable routing.

• Removal of the terminal box and harness

shroud (4D compressors) for service and

communications cable routing.

Refer to Emerson Climate Technologies, Inc. cus-

tomer drawings in Appendix D for dimensional

envelopes of Intelligent Store™ Discus® compres-

sors.

2.2 Terminal Box Connections

The following terminal box connections must be made

by the original equipment manufacturer:

• Module Power - 230 VAC to power the

Intelligent Store™ Discus® electronics, acces-

sories (e.g., unloader coils or injection valves)

and contactor coil.

• Contactor - Output connections to the contac-

tor coil.

• Crankcase Heater - 230 VAC power for the

crankcase heater, such as from the auxiliary

contact on the compressor contactor. Leave

connectors empty when crankcase heaters

are not included.

• Intelligent Store™ Discus® and Discus® com-

pressors use the same motor terminal con-

nections.

All terminal box connections are to be made with AMP

P/N 2-520183-2 or equivalent. Refer to figure 2.1.

Figure 2.1 3D Terminal Box Assembly

Feature

Electrical

Requirements

Intelligent Store™ Discus®

Supply Voltage

(Module Power)

208/230 volts

170 volts min

Pilot Circuit Voltage

(Contactor Output)

208/230 volts

170 volts min (supplied by

Intelligent Store™ Discus®)

Crankcase Heater 208/230 Volts

Compressor Motor Model Dependent

Variable Speed

Compatibility

Not Compatible with

Variable Speed

Head Fan Per OEM Wiring

AE8-1337 R1

1 2 3 4 5 6 7 8 9 10 11 12 ... 70 71

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