Emerson Copeland Scroll, XJAM-002, XJAL-002, XJAM-012, XJAL-012 Installation And Reference Manual

Copeland Scroll® Outdoor Condensing Unit

Installation and reference manual

Application Engineering

BULLETIN

Application Engineering

AE5-1377 R2

BULLETIN

®

Copeland Scroll

Introduction .........................................................................................................2

Nomenclature/Features......................................................................................2

Performance Data ...............................................................................................2

Electrical/Physical Data/Sound Data/BOM Details ..........................................2

Generator Requirements ...............................................................................2

Physical Dimensions..........................................................................................2

Installation/Piping Instructions .........................................................................2

Condensing Unit Operational Control ..............................................................3

Control Features .................................................................................................3

Fresh Start Program ......................................................................................3

Stop Program .................................................................................................3

Automatic Liquid Injection ..............................................................................3

Compressor Phase Reversal .........................................................................3

Loss of Phase Protection ...............................................................................3

Motor Current Overload .................................................................................4

Non-Adjustable High and Low Pressure Switches ........................................4

Non-Adjustable High Pressure Control .......................................................4

Non-Adjustable Low Pressure Control ........................................................4

Adjustable Low Pressure Switch ...................................................................4

Liquid Floodback Protection ...........................................................................4

Crankcase Heater ..........................................................................................4

Condenser Fan Speed Control ......................................................................4

Enhanced Vapor Injection (EVI) Control ..........................................................4

Electronic Expansion Value (EXV) .................................................................4

TXV selection .................................................................................................5

Other Inputs to the Control Board ....................................................................5

Customer Supplied Control (Thermostat) ......................................................5

Other Outputs from the Control Board .............................................................5

Defrost Control Board ....................................................................................5

Evaporator Fan Control ..................................................................................5

Diagnostic Display Board ..................................................................................5

Short Cycle Protection Option ..........................................................................8

System Diagnostics/Troubleshooting Information (Table 9) ........................15

Sensor Information (Table 10)..........................................................................18

Wiring Diagrams

XJAM/XJAL Single Fan CFV-002 and -012 Models ........................................... 21

XJAM/XJAL Single and Dual Fan TFC-002 and -012 Models ...........................22

XJAM/XJAL Dual Fan CFV-002 and -012 Models ............................................23

XJAM/XJAL Single Fan CFV-022 Models .......................................................... 24

XJAM/XJAL Single and Dual Fan TFC-022 Models ........................................... 25

XJAM/XJAL Dual Fan CFV-022 Models ............................................................. 26

On Board -022 Bom Defrost Schematic ..........................................................27

APPENDIX:

One Way Communication Board Installation Details (RS Form 026-4909) ........28

Outdoor Condensing Unit

TABLE OF CONTENTS

AE5-1377 R2

October 2011

© 2011 Emerson Climate Technologies
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Introduction

Copeland Scroll
many benefi ts of scroll compressor technology, coupled
with advanced diagnostic controls, to ensure reliable
performance and operation in foodservice applications.
Electronics are used extensively in its protection and
diagnostic features. These features are controlled by an
electronic integrated control board. The control board
provides base control functions related to temperature
controller, defrost, evaporator fan control, compressor
protection e.g. current overload, phase reversal, liquid/
vapor injection control, self diagnostics and warnings.
These error codes can be seen by an LED display for
easy and rapid troubleshooting and maintenance.

A complete product offering for medium and low
temperature HFC-404A units is being offered in single
and three phase 208/230 volts. The -002 and -012
BOM product is approved for operation in ambients
from 120°F to -10°F. The -022 BOM is featured with
the required components to operate in colder climates.
See Figure 1 for details. For applications outside these
guidelines, please contact Application Engineering.

Nomenclature/Features
See Figure 1 (page 6).

Understanding Actual vs. Standard Airfl ow

T o choose the proper coil for your application, the density
of the incoming air needs to be known to calculate the
actual capacity and performance of the system.

A coil’s required capacity can be calculated using the
thermodynamic equation

Q = M x Delta hr

Q = Heat transfer to or from the air (Btuh)
M = Mass fl ow rate of air (lb/hr)
Delta h = Difference between the entering and leaving

air enthalpy or total heat (Btu/lb)

The mass fl ow rate is equal to the density of air times
the face area of the coil times the velocity of the air at
the coil or face velocity.

M = P x A x V
P = Density (lb/ cubic ft.)
A = Face area of coil (square ft.) ~ Fin height x fi n length
V = Air Velocity (ft./min.)

For temperature conversions

®

outdoor condensing units provide the

( )=

+

Temperature Conversion Factors

Temp

(degrees F)

0 1.15 60 1.02
10 1.13 70 1.00
20 1.10 80 .98
30 1.08 90 .96
40 1.06 100 .95
50 1.04 110 .93

Altitude Conversion Factors (A2)

Alt.- Ft. Factor- A2 Alt.- Ft Factor- A2

0 1.00 3000 .895
500 .982 4000 .864
1000 .965 5000 .832
1500 .947 6000 .802
2000 .930 7000 .771
2500 .912 8000 .743

SCFM= CFM X A1 X A2
Note: all calculations and ratings are based on standard

air at 70°F dry bulb temp and 29.92 Hg atmospheric
pressure (sea level). These tables convert non standard
cfm to standard cfm.

Performance Data
See Tables 1 and 2 (page 10).

Electrical / Physical Data

See

Table 3

Generator Requirements

In situations or locations were an electrical power
generator could be applied in the event of a power
outage, the Copeland Scroll® outdoor condensing unit
will operate providing the generator will provide a supply
voltage range of 180-260 VAC along with a frequency
of 47-63 Hz. The electronics control along with the
power board will function properly providing the range
of operating limits is in compliance!

Physical Dimensions
See Figure 2 (page 7).

Installation / Piping Instructions

See Figure 2 for overall dimensions of the units. It is
recommended that a clearance of 8 inches from the

Factor A1

(page 11).

Temp

(degrees F)

Factor A1

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wall (or the next unit) be maintained from the unit’s left
and rear panel whereas a clearance of 20 inches is to
be maintained from the unit's right, top and front panels.
Both service access and airfl ow have been considered
in making these recommendations. Where multiple
units are to be installed in the same location, careful
consideration for proper clearance needs to be given
to each individual unit.

Ideally, the unit should be mounted level on a solid
concrete slab with rubber strips between unit feet and
concrete. However, these units have been designed for
mounting on suitable brackets for wall mounting. In this
case it is equally important that the spatial guidelines
given above are followed, and additional consideration
needs to be given for possible air recycling if units are
stacked above and below each other. In general terms,
air by-pass around each condenser and between each
unit should be avoided at all times.

Pipe sizing should not only be of suffi cient size to ensure
optimum performance and good oil return, but it also
needs to take into account the full capacity range through
which this particular unit will need to operate. Follow the
ASHRAE guidelines for proper piping practices.

Condensing Unit Operational Control

The Digital Control electronic control board controls the
operation of the condensing unit. Whenever there is a
control input asking to start or stop the condensing unit,
the control board will execute a set of pre-programmed
procedures to do so. It also monitors the compressor
operating parameters, so as to protect the system from
unsafe operating parameters. See Figure 3 (page 8).

For example, when the low temperature unit experiences
an extreme temperature day , the control board decides
to switch from vapor-injection-optimization to discharge
gas temperature control to allow the compressor to run
safely and pass the extreme weather hours.

Control Features

The base control function is for the following standard
features. See Figure 3 for additional input options and
output options of the control board.

Fresh Start Program

This Fresh Start Program is a bump start procedure that
will energize and start the compressor for 3 seconds
and then will be followed by a 20 second off cycle time.
This will occur for 3 cycles, and then continuous power
will be supplied to the compressor for normal operation.

The Fresh Start Program will be executed on initial start
up or any time power is reapplied when the ambient

temperature is lower than 95°F. In addition, the Fresh
Start Program will be executed for any start when the
unit has been cycled off for more than an hour when the
ambient temperature is lower than 95°F.

Stop Program

When the unit is satisfi ed, or there is any error which
requires the unit to be shut down, the controller will
execute a Stop Program. The compressor and the
condenser fans will cycle off and the injection valves
will close.

For low temperature units only, when the unit is
satisfi ed the EXV will start closing immediately, but the
compressor will delay 5 seconds before shut down to
prevent reverse rotation of the compressor.

Automatic Liquid Injection (Medium temperature
units only)

Automatic Liquid Injection ensures that the scroll
compressor operates within a safe temperature limit.
This unit employs a patented liquid injection system
which injects a saturated refrigerant into the suction
line at the compressor. Activation of the liquid injection
valve is in response to a thermistor which is attached
to the compressor discharge line. A signal is sent to the
stepper motor of the injection valve, opening the valve
in response to increasing discharge temperatures and
injecting saturated refrigerant to reduce the discharge
temperature.

Compressor Phase Reversal

Compressor Phase Reversal senses for the correct
phase sequence on three phase applications. Reset is
automatic once the correct phase sequence is sensed.
An error message will be shown on the diagnostic LED.

Loss of Phase Protection

If three phase supply is incorrectly connected to the
contactor terminals, or if a missing phase is sensed, an
error message will be shown on the diagnostic LED.
Reset is automatic once the correct phasing is sensed.

Motor Current Overload

• All scroll compressors used in these condensing

units have an internal inherit motor protector.

• The Copeland Scroll Outdoor Condensing Unit is

also equipped with two current sensors (CT1, CT2)
to monitor the electrical current of the condensing
unit. If the condensing unit current exceeds a pre­defi ned current limit, the controller will take the
following actions:

□ Stop the compressor for 3 minutes

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□ LED signal will display an Over Current Error

for 3 minutes

□ After a 3 minute delay the compressor will go

through a normal start

□ The system will lock out after 6 over current

trips within an hour

For this function to operate, two of the power leads are
routed through the current sensing coils (CT1, CT2),
prior to the contactor, from the factory. See Figure 3.

Non-Adjustable High Pressure Control

This pressure sensing device is a nonadjustable, low
voltage pressure switch that will open at 435psig and
reset at 348psig in the event of high discharge pressure.
Its signal is monitored by the control board.

• In the event of a high pressure trip, the unit will stop

and then restart after a 3-minute delay.

• After 6 successive HP cut-outs within 1 hour, the

unit will lock-out.

• The lockout feature can be reset by disconnecting

the power source and then cycling power to the unit.

Adjustable Low Pressure Switch

An adjustable low pressure switch is provided as
standard equipment on both the medium and low
temperature condensing units. This control can be
used for a pump-down cycle if so desired. See T able 8,
Low Pressure Control Settings (page 13). No error
message will be shown for this adjustable control.

Liquid Floodback Protection

• Liquid refrigerant entering the compressor during

the run cycle, in excessive quantities, can damage
the compressor by diluting the lubricant, as well
as excessive stress on several components in the
compressor. Proper control of liquid refrigerant
within the system is an application issue and is
beyond control of this controller. However, the
controller can perform checks and alert the user
that liquid refrigerant fl oodback may be occurring
and immediate fi eld service is required. This is
only a warning signal and will not terminate the
operation of the unit. See Tables 6 and 6a (page

13).

• Liquid Floodback Protection is acquired by

monitoring the compressor discharge temperature.
When the discharge line temperature falls below
a specifi ed point, low suction line superheat may
be the cause.

Crankcase Heater

The crankcase heater is wired through a normally closed

contact of the compressor contactor which is energized
whenever the compressor cycles off.

Condenser Fan Speed Control

The Condenser Fan Speed Control will vary the speed of
the condenser fan motor for head pressure control under
low ambient conditions. There are two thermistor type
sensors that are connected to the control board. These
sensors monitor the condenser mid coil temperatures
and ambient air temperatures to control the fan speed.

Enhanced Vapor Injection (EVI) Control (Low
temperature units only)

The EVI system improves low temperature operational
effi ciency and provides a reliable low temperature
envelope. It is used to optimize performance and to
prevent the scroll set from overheating. This is done by
controlling the discharge line temperature (DLT) and
vapor injection superheat (VISH).

Enhanced vapor injection is accomplished by utilizing a
subcooling circuit. A heat exchanger is used to subcool
the liquid refrigerant before it enters the evaporator. As
a result of the subcooling done by the heat exchanger,
refrigerant will also be evaporated. This evaporated
refrigerant is then injected into the mid compression
cycle of the scroll compressor for overheat temperature
control.

There are two thermistors sensing the discharge line
temperature, one is located at the discharge line of the
compressor and the second one is placed at the inlet of
the condenser coil. In order to have a higher temperature
resolution, the discharge line thermistor and condenser
coil inlet sensor cooperate to sense a temperature range
from 50°F to 329°F . The discharge line thermistor has a
sensing range from 163°F to 329°F and the condenser
coil will sense temperature from 50°F to 176°F . The EVI
system will keep the discharge line temperature below
230°F to ensure the safety of the compressor.

It is important to insulate the system liquid line from the
condensing unit to the evaporator. The recommended
insulation thickness is a minimum of ½ inch. Also the
lower liquid temperature can increase the evaporator
expansion valve capacities. Please follow the valve
manufactures recommended liquid temperature
correction factors for proper selection of the evaporator
expansion valve.

Electronic Expansion Value (EXV)

The Electronic Expansion Value (EXV) is a key part
of the EVI system. It will regulate vapor injection fl ow
to optimize the performance of system and cool the
scroll set. Every second, the control chip will collect the

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thermistors reading and do a four second averaging.
The EXV opening will be changed every 20 seconds
and the variation is calculated by different ways based
on different purposes.

TXV selection

For EVI, Emerson recommends a balanced port TXV
because it offers a wider operating range for fl oating
liquid temperatures.

See Table 7 (page 14) for specifi cs regarding balanced
port sizing recommendations. Applied with the low temp
units it is recommended that a balanced port expansion
valve be used along with a complete review of the the
distributor & nozzle (orifi ce) that is supplied with the
Evaporator coil being matched with the applicable
condensing unit. Typically nozzles are selected for
standard TXV sizing using 100°F liquid, with the XJAL
those typical selections could be grossly oversized. See

Table 7 for the liquid correction safety factors when

selecting those components.

Other Inputs to the Control Board
Customer Supplied Control (Thermostat)

The control board will accept a normal 220 volt AC
input ON/OFF signal such as the switching action of a
normal commercial thermostat and relay. If the system
is controlled by low pressure control for a multiple
evaporator system and/or pump down system, the
control board will accept the signal directly from the
control. See Wiring Diagrams, pages 21-24, for proper
installation.

Other Outputs from the Control Board
Defrost Control Board

The defrost control board is a basic time initiated module
which is standard on the low temperature units and is
an add on feature for the medium temperature units.
The defrost control board can control either off-cycle or
electric defrost.

The defrost control board will control the liquid line
solenoid valve. When defrost is initiated the liquid line
solenoid valve will close and the unit will go into a
pumpdown cycle. When the suction pressure equals the
setting of the low pressure control, the compressor will
cycle off. After the defrost time has expired, the liquid line
solenoid valve opens and then the low pressure control
will allow the compressor to restart.

Due to heater amperage loads, electric defrost requires
an additional relay or contactor to energize the defrost
heater.

The defrost cycle can be executed either automatically
or manually . There are two rotary dip switches by which
the user can set up the defrost cycle, see Figure 4. One
rotary dipswitch sets the defrost duration (SW1) and the
second rotary dipswitch sets the time interval between
defrost cycles (SW2). For automatic defrost set SW1
and SW2 as desired. See Table 4 (page 11) for time
settings. The defrost control board also incorporates
a manual defrost button that enables a manual defrost
as an override to the rotary switch setting the defrost
interval. Upon the completion of a manual defrost, the
system will reset to the refrigeration cycle with the same
procedures as automatic defrost and then the automatic
defrost timer will reset.

For setting manual defrost only set SW1 as desired and
set SW2 to “0”. Whenever the manual defrost button
is pressed, one defrost cycle will be executed and the
duration of defrost will be determined by the setting of
the rotary dipswitch SW1.

Note: There is no method to terminate a defrost cycle
without resetting the control board.

Table 4 lists rotary dip switch settings for the Defrost
Control Board.

An ON/OFF output connection is provided on the
control board (JP10) for direct connection of a customer
supplied contactor coil/relay when the defrost option is
used. T erminals are male spade type. Coil voltage rating
should be 220V AC and current ratings, 30V A (hold) and
330VA (inrush). See Figure 6 (page 9).

For customers using their existing defrost timer,
remove the defrost cable connecting the defrost control
board to the unit control board. Also on the unit control
board change the mode setting dip-switch bit 2 to ON
and proceed to standard defrost wiring. See Table 5
(page 12)

Evaporator Fan Control
An ON/OFF output connection is also provided on the

control board (JP9) for direct connection of a customer
supplied contactor coil controlling the evaporator fans.
Terminals are the male spade type. Coil voltage rating
is to be 220VAC and a maximum power rating of 30VA
(hold) and 330VA (inrush). See Figure 6.

Diagnostic Display Board

Each condensing unit is supplied with a diagnostic
display board, see Figure 5 (page 13). A two character
display will make up the diagnostic/error code. The fi rst
character will display the unit status as shown in Table

6. The second character will display the error/warning

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XJAM XJAL XJAM XJAL XJAM XJAL

-002 -002 -012 -012 -022 -022

Fan Motor Variable Variable Variable Variable Variable Variable

Head Pressure Control VS VS VS VS VS VS

Service Valves Brass Brass Brass Brass Brass Brass

Receiver X X XXXX

Liquid Shut Off X X XXXX

Filter Dryer X X XXXX

Fixed HP X X XXXX

Adjustable LP X X XXXX

Diagnoscs X X XXXX

Accumulator X X X

Oil Seperator X X X

3 Minute An-Short Cycling X X XXXX

Low Pressure Bypass Time Delay X X

Over Current

X X XXXX

Incorrect Phase Rotaon

X X XXXX

"Smart" CCH

X X XXXX

Compressor Overheang

X X XXXX

Remote Alarming

code as shown in T able 6a. See Figure 5 for a detailed
view of the diagnostics board assembly.

The Main Board Connector terminal will accept the cable
connecting the display board to the main control board.

Family X-Line

J = R404A

A = Air-Cooled

M = Medium Temp
L = Low temp

Z = Scroll

X J A M - 0 2 0 Z - T F C - 0 0 2

1.5 to 6.0 = Nominal Hp

BOM

Hood X X XXXX

The Reset Button will reset the diagnostic display board
only. The Message Recall Button will display the last
error signal received by the display board. See Figure 5.

CFV = 208/230V-1ph-60Hz
TFC = 208/230V-3ph-60Hz

0 = UL Listed
Product

Model Variation
0 Base Unit
1 Communication/
Defrost Module
2 Low Ambient /
On Board Defrost Relays

Moisture Indicator X X X X X X

CCH X X X X X X

FeaturesDiagnoscs

Defrost mer X X X
One Way Communicaon XXXX

20 Second An-Short Cycling Opon X X X X
Defrost mer w/ Relays X X
Heated Insulated Receiver X X

Liquid Flood-Back Predicon
"Fresh" Start Logic

Compressor Short Cycle
Fault Code History

X X XXXX
X X XXXX

X X XXXX
X X XXXX
X X XXXX

Figure 1 – Nomenclature and Features

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MODEL

SINGLE FAN UNIT 40.51" 33.07" 16.69" 22.84" 15.28" 3/4" 1/2" 12" 20" 8" 20" 20"

DUAL FAN UNIT 40.51" 48.90" 16.69" 22.84" 15.28" 7/8" 1/2" 12" 20" 8" 20" 20"

WIDTH HEIGHT DEPTH MTG. CENTERS CONN. SIZE INSTALLATION CLEARANCES

W H D X Y Suction Liquid a b c d e

Figure 2 – Physical and Installation Requirements

© 2011 Emerson Climate Technologies
Printed in the U.S.A.

PHYSICAL DATA

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3-Phase Power

Supply Input

3-Phase Detect

Module

Compressor Current Sensing

(Hi/Lo) Setting Dip-Switch

Current Transformers

AE5-1377 R2

MCU

Temperature Sensors

Compressor Type
Setting Rotary-Switch

High Pressure
Switch Connector

Short Cycle
Protection Option

*See Note

Defrost Module
Connector

EXV Driver

Diagnosis Module
Connector

Switch Mode

Power Supply

1-Phase Power

Supply Input

High Voltage

Outputs

Figure 3 – Power Board / Control Board

* Note: Short Cycle Protection Option

a) Factory Jumper Installed Three Minute Time Delay
b) Remove Jumper Twenty Second Time Delay

Mode Setting

Dip-Switch

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Manual Defrost

Button

Remote Manual

Defrost Button

Connector

Defrost Control Module

Defrost Duration

Switch SW1

Main Board

Connector

Figure 4

2 Digit LED display

Defrost Duration

Switch SW2

Reset
Button

Message
Recall Button

Main Board Connector

Emerson-Supplied Defrost Module Requirements Utilized on Bom's -002/-012

Defrost Wiring

Figure 5

Diagnostics Module

Figure 6

Emerson Supplied Defrost

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Table 1

Medium Temp Performance Criteria

AE5-1377 R2

H.P.

1.5 XJAM-015Z-CFV 14600 13600 R404A / POE

H.P.

Medium Temperature

Model Number

2 XJAM-020Z-CFV 19600 17900 R404A / POE
2 XJAM-020Z-TFC 19600 17900 R404A / POE
3 XJAM-030Z-CFV 28500 25900 R404A / POE
3 XJAM-030Z-TFC 28500 25900 R404A / POE
4 XJAM-040Z-CFV 38600 35300 R404A / POE
4 XJAM-040Z-TFC 38600 35300 R404A / POE
5 XJAM-050Z-CFV 47100 43800 R404A / POE
5 XJAM-050Z-TFC 47100 43800 R404A / POE
6 XJAM-060Z-TFC 54600 50200 R404A / POE

Low Temperature

Model Number

Btu/hr @ +25°F Sat. Suction

Temp / 90°F Ambient

Table 2

Low Temp Performance Criteria

Btu/hr @ +25°F Sat. Suction

Temp / 90°F Ambient

Btu/hr @ +25°F Sat. Suction

Temp / 100°F Ambient

Btu/hr @ -10°F Sat. Suction

Temp / 100°F Ambient

Refrigerant/

Oil Type

Refrigerant/

Oil Type

2 XJAL-020Z-CFV 13100 12700 R404A / POE
2 XJAL-020Z-TFC 13100 12700 R404A / POE
3 XJAL-030Z- TFC 17200 16400 R404A / POE
3 XJAL-035Z- CFV 19700 18100 R404A / POE
4 XJAL-040Z-CFV 24700 23700 R404A / POE
4 XJAL-040Z-TFC 24700 23700 R404A / POE
5 XJAL-050Z-CFV 27600 25700 R404A / POE
5 XJAL-050Z-TFC 27600 25700 R404A / POE
6 XJAL-060Z-TFC 34700 32700 R404A / POE

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Table 3

Mechanical / Electrical Specifi cations

AE5-1377 R2

Dimensions

(in)

Unit Model Compressor H.P.

L W H Suction Liquid

XJAM-015Z ZB11KCE 1.5 16.7 40.5 33 3/4 " 1/2 " 1 12.3 / 20 N/A 7.5 180 55
XJAM-020Z ZX15KCE 2 16.7 40.5 33 3/4 " 1/2 " 1 18.7 / 30 11.1 / 15 7.5 182 55
XJAM-030Z ZX21KCE 3 16.7 40.5 33 3/4 " 1/2 " 1 24.3 / 40 14.7 / 25 7.5 194 55
XJAM-040Z ZX30KCE 4 16.7 40.5 49 7/8 " 1/2 " 2 32.1 / 50 19.7 / 30 11 250 56
XJAM-050Z ZX38KCE 5 16.7 40.5 49 7/8 " 1/2 " 2 36.6 / 60 29.0 / 50 11 258 56
XJAM-060Z ZX45KCE 6 16.7 40.5 49 7/8 " 1/2 " 2 N/A 28.1 / 45 11 270 56

XJAL-020Z ZXI06KCE 2 16.7 40.5 33 3/4 " 1/2 " 1 19.4 / 30 14.7 / 25 7.5 188 50
XJAL-030Z ZXI09KCE 3 16.7 40.5 33 3/4 " 1/2 " 1 N/A 15.4 / 25 7.5 192 50
XJAL-035Z ZXI11KCE 3.5 16.7 40.5 33 7/8 " 1/2 " 1 30.7 / 50 N/A 7.5 213 50
XJAL-040Z ZXI14KCE 4 16.7 40.5 49 7/8 " 1/2 " 2 36.1 / 60 24.5 / 40 11 251 58
XJAL-050Z ZXI15KCE 5 16.7 40.5 49 7/8 " 1/2 " 2 N/A 26.1 / 45 11 267 58
XJAL-050Z ZXI16KCE 5 16.7 40.5 49 7/8 " 1/2 " 2 40.4 / 70 N/A 11 287 58
XJAL-060Z ZXI18KCE 6 16.7 40.5 49 7/8 " 1/2 " 2 N/A 30.7 / 50 11 291 58

Connection

Lines

# of

Fans

Min Circuit

Ampacity/ Max Fuse

(Amps)

208/230V
1ph-60hz

208/230V
3ph-60hz

Pump
Down

Capacity

(lbs)

Unit

Weight

(lbs)

dba *

Assume Each Fan @ .75 Amps

*Estimated sound pressure values are 10 feet from the unit at 25F evap for MT and -10 evap for LT at 90 ambient.
A sound reduction of up to 3 dBA will occur in ambient temperatures below 70F. This data is typical of “free fi eld”
conditions for horizontal air cooled condensing units and may vary depending on the condensing unit installation.
There are many factors that affect the sound reading of a condensing unit such as unit mounting, refl ecting walls,
background noise and operating condition.

Switch 1 Defrost duration (minutes)

0 No defrost (manual defrost only)
1 5 minutes
2 10 minutes
3 15 minutes
4 20 minutes
5 25 minutes
6 30 minutes
7 35 minutes

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Table 4

Emerson Supplied Defrost Set Points

Switch 2 Time interval between defrost

0 No defrost (manual defrost only)
1 1 hour
2 2 hours
3 3 hours
4 4 hours
5 5 hours
6 6 hours
7 7 hours

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Application Engineering

BULLETIN

Table 5

Main Control Board Setting For XJAM

Model Name**

Control Board

Default Setting
ZB11KCE-PFV A ON/ON
ZX15KCE-TF5 1 ON/ON
ZX15KCE-PFV 2 ON/ON
ZX21KCE-TF5 3 ON/ON
ZX21KCE-PFV 4 OFF/OFF
ZX30KCE-TF5 5 ON/ON
ZX30KCE-PFV 6 OFF/OFF
ZX38KCE-TF5 7 OFF/OFF
ZX38KCE-PFV 8 OFF/OFF
ZX45KCE-TF5 9 OFF/OFF

Rotary
Switch

0 ON/ON

Main Control Board Setting For XJAL

2bit

Dip-Switch

AE5-1377 R2

3bit Dip-Switch

Bit 1: To set evaporator fan control mode

- “ON”: Evaporator fan will be ON all the
time no matter whether compressor is ON/
OFF or defrosting

Bit 2: To set defrost mode

- “OFF”: Using Emerson defrost module

- “ON”: Using customer defrost module
Bit 3: Not used yet.

Model Name**

Control Board

Default Setting

ZXI06KCE-TF5 1 ON/ON

ZXI06KCE-PFV 2 ON/ON

ZXI09KCE-TF5 3 ON/ON

ZXI11KCE-PFV 4 OFF/OFF

ZXI14KCE-TF5 5 OFF/OFF

ZXI14KCE-PFV 6 ON/ON

ZXI15KCE-TF5 7 OFF/OFF

ZXI16KCE-PFV 8 OFF/OFF

ZXI18KCE-TF5 9 OFF/OFF

** Please set the switches to the correct position according to compressor model.

Rotary
Switch

0 ON/ON

2bit

Dip-Switch

3bit Dip-Switch

Bit 1: To set evaporator fan control mode

- “OFF”: Evaporator Fan On/Off Logic Same
As Compressor

- “ON”: Evaporator fan will be ON all the
time no mater whether compressor is ON/
OFF or defrosting

Bit 2: To set defrost mode

- “OFF”: Using Emerson defrost module

- “ON”: Using customer defrost module
Bit 3: Not used yet.

© 2011 Emerson Climate Technologies
Printed in the U.S.A.

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