Emerson Copeland Scroll ZB KC Series Application Engineering Bulletin Download

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AE-1318 R1

Application Engineering

APPLICATION GUIDELINES FOR ZB*KC/ZB*KCE COPELAND SCROLL

REFRIGERATION COMPRESSORS 7 TO 15 HP

AE4-1318 R1 June 2008

Application Engineering

Introduction

The Copeland Scroll

ZB*KC/ZB*KCE refrigeration

compressor product offering has expanded to include
higher horsepower models. These new models
include 7-15 Hp and produce between 50,000 Btu/H
and 114,000 Btu/H at 20/120°F using 60 Hz electrical
power. This bulletin covers the application parameters
recommended for operating these compressors
properly.

Nomenclature

The ZB*KC/ZB*KCE refrigeration scroll model number
includes two digits that indicate the amount of cooling
capacity in thousands of Btu/H at the 60 Hz ARI rating
point (20/120°F) with R404A in the third and fourth
location. (e.g. ZB92KC produces approximately 92,000
Btu/H). For actual compressor performance information
please visit Emerson Climate Technologies Online
Product Information at www.emersonclimate.com

Operating Envelope

The Copeland Scroll refrigeration models can be used
with a variety of refrigerants.

Table 1

shows these

selection options.

The operating envelopes are depicted in Figures 1A,
1B, 1C, 1D, 1E and 1F.

Figure 1B

ZB95KCE & ZB114KCE Application Envelope for

R404A/R507 MT Applications 7-15Hp

TABLE 1

Model

Refrigerant

Lubricant

ZB50KC/E

R22/407/R404A/507/134a

MO/POE

ZB58KC/E

R22/407/R404A/507/134a

MO/POE

ZB66KC/E

R22/407/R404A/507/134a

MO/POE

ZB76KC/E

R22/407/R404A/507/134a

MO/POE

ZB88KC/E

R22

MO/POE

ZB95KC/E

R22/R404A/507/134a

MO/POE

ZB114KC/E

R22/R404A/507/134a

MO/POE

ZB56KC/E

R22/R404A/507/134a

MO/POE

ZB68KC/E

R22/R404A/507/134a

MO/POE

ZB75KC/E

R22/R404A/507/134a

MO/POE

ZB92KC/E

R22/R404A/507/134a

MO/POE

ZB11MC/E

R22/R404A/507/134a

MO/POE

Figure 1A

ZB*KCE (excluding ZB95KCE & ZB114KCE)

Application Envelope for R404A/R507 MT

Applications 7-15Hp

20 F SH

Summary of Contents for Copeland Scroll ZB KC Series

Page 1: ...ion e g ZB92KC produces approximately 92 000 Btu H For actual compressor performance information please visit Emerson Climate Technologies Online Product Information at www emersonclimate com Operating Envelope The Copeland Scroll refrigeration models can be used with a variety of refrigerants Table 1 shows these selection options The operating envelopes are depicted in Figures 1A 1B 1C 1D 1E and ...

Page 2: ...ycle operation conditions accumulators may not be required An accumulator is required on single compressor systems when the charge limitations exceed those values listed in Table 2 On systems with defrost schemes or transient operations that allow prolonged uncontrolled liquid return to the compressor an accumulator is required unless a Figure 1D ZB KC excluding ZB95KC ZB114KC Application Envelope...

Page 3: ...r Crankcase heaters are required on systems when the system charge exceeds the recommended charge limit See Table 2 The listed crankcase heaters Table 3 are intended for use only when there is limited access The heaters are not equipped for use with electrical conduit Where applicable electric safety codes require heater lead protection a crankcase heater terminal box should be used Recommended cr...

Page 4: ...re Controls Both high and low pressure controls are required and the following are the minimum and maximum set points Refer to Table 4 for proper settings IPR Valve The 7 through 15 horsepower refrigeration scroll compressors DO NOT have an internal high pressure relief valve To provide safe operation a high pressure control set no higher than 445 psig must be used in all applications reference Ta...

Page 5: ...effect upon the long term contact resistance of the relay and may result in false compressor trips PLC operated control circuits may not always provide this minimum current In these cases modifications to the PLC control circuit are required Consult your application engineering department for details Phase Protection The INT69SCY module provides phase protection for the compressor The module sense...

Page 6: ...g leads CAUTION Use an Ohmmeter with a maximum TABLE 6 Emerson P N 071 0520 07 071 0520 05 071 0620 00 071 0641 00 Manufacturer P N T I 30AA201E Kriwan 69SC DV Kriwan 69SCY Kriwan 69SU T1 T2 Module Power Voltage Supply 120V 240V 120V 240V 120V 240V 120V 240V Frequency 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 60Hz M1 M2 Module Output Contacts Maximum Voltage N A 250VAC 250VAC 250VAC Maximum Current 5 Amp...

Page 7: ...n the module is faulty and should be replaced Oil Type Polyol ester lubricant POE must be provided if the refrigeration scroll is used with HFC refrigerants Copeland Scroll refrigeration compressors intended for use with R22 are supplied with mineral oil Reference Table 7 for proper oil charge See Form 93 11 for a complete list of all Emerson approved lubricants Oil Management for Single Compresso...

Page 8: ...tem Note The use of standard soft grommets is not recommended for our refrigeration scroll rack installations These softer mounts allow for excessivemovementthatwillresultintubebreakage unless the entire system is properly designed Connection Fittings There are various connection fittings available for Copeland Scroll refrigeration compressors The various options are shown in Table 8 Three Phase S...

Page 9: ... and oil mixture could ignite as it escapes and contacts the brazing flame It is important to check both the high and low sides with manifold gauges before unbrazing or in the case of assembly line repair remove refrigerant from both the high and low sides Instructions should be provided in appropriate product literature and assembly line repair areas Hi Pot Testing Copeland Scroll compressors are...

Page 10: ...icable reserve the right to modify the design or specifications of such products at any time without notice Emerson does not assume responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any Emerson product remains solely with the purchaser or end user CAUTION POE must be handled carefully and the proper protective equipment gl...

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