Emerson ZX Platform Condensing Unit Product manual

Leading the Future in Refrigeration Technology
EMERSON
ZX Platform Condensing Unit
PRODUCT MANUAL
The Emerson ZX platform condensing unit
1
ZX – reliability platform
2
ZX – performance platform
2
ZX – design platform
2
Emerson ZX platform – scroll superiority
3
Physical layout of the ZX platform CDU
4
ZX Platform E2 control features
7
ZX platform- technical specifications
Nomenclature
10
Bill of material (BOM)
10
Envelope
11
Performance tables
ZX MT unit capacity and power at 50Hz for refrigerant R22
12
ZX MT unit capacity and power at 50Hz for refrigerant R404a
13
ZX LT unit capacity and power at 50Hz for refrigerant R22
14
ZX LT unit capacity and power at 50Hz for refrigerant R404a
15
ZX LT unit (liquid line temperature)
16
Wiring diagram (ZX MT & LT units)
17
Technical data
ZX MT units
18
ZX LT units
19
Dimensional drawing (ZX MT & LT units)
20
Diagnostic messaging – LED definitions (ZX MT and LT units)
21
Diagnostic initialization message (ZX MT and LT units)
22
E2 control board dip switch setting
22
E2 controller trip set-points & actions (ZX MT & LT units)
24
Vapor injection: specific application tips - ZX LT CDU
25
Emerson ZX Platform Condensing Unit
PRODUCT MANUAL
The Emerson ZX platform condensing units
Emerson Climate Technologies is pleased to offer the ZX platform refrigeration condensing units (CDU) specifically designed for medium
temperature (MT) and low temperature (LT) refrigeration. Emerson’s CDU range comes with unique features and applies its advanced and
patented scroll technologies that redefine the standards of efficiency and reliability for this category of products.
ZX MT series CDU has been highly successful in the Asian market and enjoys proven success with its energy savings and customer-friendly
electronic features. ZX MT CDU’s have been applied by several well known end-users and chain retailers throughout Asia. The ZX platform
is also gaining wider acceptance in the global market and specific variants have been developed and exported to the USA, European and
Middle East markets.
The ZX platform CDUs come with Emerson Climate Technologies’ highly successful “E2 Controller”. E2 controller provides real-time
monitoring of compressor operating conditions and initiates actions to keep the compressor within the safe zone. When fault conditions
are detected, the controller initiates temporary shutdowns and sends specific warning signals to facilitate service. In the event of
continued errors, the controller will shutdown the unit thereby preventing costly equipment failure and send alarm signals. The controller
is also designed to activate an external telephone dialer to be notified on a preset telephone number. This feature can also be used to
automatically start a back-up unit in critical applications.
Emerson’s highly successful Copeland® brand scroll compressors drive the high efficiency of the ZX platform of CDUs. Over 50 millions
Copeland® brand scroll compressors sold across the globe stand testimony to the extraordinary confidence and success in our scroll
technology.
However, we have not rested on these laurels alone when it comes to our ZX platform CDUs.
The ZX range of MT CDUs benefits from patented scroll suction injection technology. This allows the scroll compressor to provide a
superior MT envelope.
ZX LT CDU applies vapor injection technology. This allows an economizer cycle on scroll compressors. Vapor injection significantly
improves the LT operational efficiency and extends the LT envelope.
Emerson Climate Technologies continues to focus on the ZX CDU platform to develop discernibly superior solutions for the demanding
refrigeration market.
1
ZX – reliability platform
Emerson Climate Technologies has designed the ZX platform CDUs with extended operational capability in tough climatic conditions.
With our vast experience in the refrigeration industry, ZX platform CDU is designed with a good protection scheme. ZX protection
scheme detect conditions that could cause damage to the compressor, initiates a warning, temporary shutdown and auto restarts. The
control system will allow a complete shutdown requiring manual restart only after several iterations of repeated warnings and temporary
shutdowns are carried out. The control system is driven by the built-in “E2 Controller”. Figure 01 shows the control strategy of the E2
Controller in a schematic form.
Real Time Monitoring
Of CDU Conditions
Warning Mode
Temporary Shutdown,
Signal, Auto Restart
Lock Out Mode
Alarm, Dialer Relay
Activation, Manual Restart
Figure 01
ZX – performance platform
Emerson Climate technologies with its leadership in scroll compression technology, apply the most advanced techniques to maximize the
possible operational efficiency at specific application envelopes.
ZX MT CDU applies a patented suction-line injection technology. Scroll compressor inherently operates at higher efficiency at MT application
conditions. The suction-line injection provides a more reliable MT operating envelope. ZX MT CDU applies ZX series scroll compressor
with liquid injection into the suction-line using an electronic expansion valve (EXV). The EXV maintains an optimum feed of partially
vaporized liquid refrigerant in the compressor suction to maintain a safe discharge gas temperature. The controlled discharge gas
temperature provides a more reliable solution for the MT envelope.
ZX LT CDU applies vapor injection technology to achieve higher efficiency in LT refrigeration. Vapor injection allows an economizer cycle to
be applied on a scroll compressor thereby greatly enhancing compressor efficiency. This technology can be likened to 2- stage compression
with economizer cycle. Vapor injection improves efficiency by as much as 12% over a liquid injection system of the same type. ZX LT CDU
applies ZXI series vapor injected compressor with vapor injection plate heat exchanger (PHE) to implement the vapor injection technology.
The ZX platform CDU’s are designed to provide best
operational cost savings on year around basis. Refrigeration
equipments operate continuously all 7 days, 24 hours and
365 days. The ZX and ZXI compressors, injection scheme
and heat exchanger designs are optimized to provide best
efficiencies at annual averaged temperature rather than
at the typical rating conditions. The typical ambient on
an annual basis follows a normal distribution pattern. The
highest and lowest ambient happens only for few hours
as shown in figure 02.
Hours
ZX – design platform
Low Ambient
High Ambient
Figure 02
2
Emerson ZX Platform Condensing Unit
PRODUCT MANUAL
Emerson ZX platform – scroll superiority
Scroll compressors deliver flatter capacity compared to reciprocating compressor condensing units due to the high volumetric efficiency of
scroll compressors.
Flatter capacity can be otherwise described as lower change in capacity with change in outdoor ambient. This is schematically shown in
figure 03. Flatter capacity brings certain inherent advantages, which highly benefit users, trade and stored products.
ZX Capacity
Higher
Evaporating Temp
Allows
Smaller Unit
Reciprocating Capacity
Low Ambient
Figure 03
High Ambient
Some of the benefits of flatter capacity on ZX platform CDUs are described below.
1. Smaller unit selection: Condensing units are selected to match the required refrigeration capacity at the highest required ambient.
Flatter capacity allows a smaller unit selection compared to reciprocating compressor CDU.
2. Lower operating cost: At lower ambient conditions, ZX platform CDU delivers capacity closer to the cooling load. In contrast
reciprocating compressor CDU delivers capacity in far excess of what is required. This helps the ZX platform CDU to operate at relatively
higher evaporating temperature. Higher evaporating temperatures improve the compressor efficiency. In addition higher evaporating
temperature reduces the rate of ice formation on the evaporator coils /frost build up. Lower frost build-up improves the evaporator heat
exchange efficiency. It also reduces the defrost heat demand, thereby resulting in lowering energy needed for defrost.
3. Freshness of food: Another benefit of higher evaporating temperature is reduced dehumidification by the evaporator coil. This allows
higher relative humidity in the cold room or cold cases. Higher relative humidity reduce the weight shrinkage and improves freshness of
stored product.
3
Physical layout of the ZX platform CDU
The unique features of Emerson’s ZX platform CDU as described above are quite different from the conventional CDUs available in the
market. Apart from this, ZX platform CDU also comes with a package of other conventional features which are part of a well designed
condensing unit.
Figure 04 identifies the E2 Control and suction injection assembly layout on a ZX MT CDU. Figure 05 identifies the E2 control and vapor
injection assembly on ZX LT CDU.
ZX E2 Control
ZX Compressor
Suction Injection EXV
ZX Med Temperature CDU
Figure 04
ZXL E2 Control
ZXI Compressor
Vapor Injection Assembly
ZX Low Temperature CDU
Figure 05
4
Emerson ZX Platform Condensing Unit
PRODUCT MANUAL
In ZX MT units, suction line injection is applied to the compressor suction. Suction line injection allows a reliable and efficient MT
envelope of up to -15 deg C (R22) and -20 deg C (R404A) evaporating temperature. In suction line injection, a part of liquid refrigerant is
added into the compressor suction gas. Suction injection de-superheats the suction gas and controls the compressor discharge
temperature. This is implemented through electronic control by the E2 controller and an electronic expansion valve (EXV). The E2
monitors the compressor discharge temperature and optimizes the opening of the EXV for optimal discharge gas control.
In ZX LT units, vapor Injection is applied to the compressor. Vapor injection enhances the compressor efficiency by applying 2-stage
compression with an economizer refrigeration cycle. Vapor injection eliminates the need for liquid injection, which would otherwise have
been required to operate a reliable LT envelope down to -40 deg C evaporating temperature. In vapor injection, a part of liquid refrigerant
is expanded and passed through a heat exchanger. In the heat exchanger, this expanded refrigerant absorbs heat from the main liquid line
and sub-cool the main liquid. The expanded refrigerant vaporizes while passing through the heat exchanger and is supplied back into the
scroll intermediate pockets through the vapor-injection tube. The sub-cooling of the main liquid increases the compressor capacity by as
much as 30%. The figure 06 below identifies the key components of the vapor injection assembly.
Vapor Injection control EXV
ZXI Vapor Injected
Scroll Compressor
Vapor Injection Tube
To Compressor
Vapor/ Liquid Sub Cooling PHE
Figure 06
5
Figure 07 identifies the key components layout of the E2 Control and Electrical components layout
E2 Power Board
E2 Control Board
Power Isolation Switch
Diagnostic Module
Compressor Contactor
Defrost Module
(optional)
Fuse Holder
Electrical Cable connectors
Figure 07
Figure 08 identifies other major refrigerant components layout on a ZX platform CDU
Suction Accumulator (Not In MT CDU)
Oil Separator (Optional In MT CDU)
Liquid Receiver
Liquid Sight Glass/ Moisture Indicator
Liquid Filter Drier
Suction And Liquid Service Valve
Receiver Out Service Valve
Compressor Oil Sight Glass
Figure 08
6
Emerson ZX Platform Condensing Unit
PRODUCT MANUAL
ZX Platform E2 control features
ZX platform E2 control offers multiple features which are unique to refrigeration condensing units. E2 real-time control monitors and
optimizes the suction or vapor injection performance to offer efficient performance in ZX MT and LT units. E2 also monitors the
compressor operating parameters, so as to protect the system from unsafe operating parameters such as passing through a peak
temperature hour of a peak ambient day; or drop-out of a power-phase; or continued refrigerant loss in the system. E2 controller detects
these situations and, as a first step, will initiate some corrective actions.
For example, when the LT unit experiences an extreme temperature day, E2 control 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.
Another fault condition which is common in refrigeration systems is compressor overload. If the condenser coils are not cleaned
regularly, the compressor operating discharge pressures rises. This condition is gradual and in conventional CDU’s, no advance
warning is provided to the user on this approaching undesirable situation. Ultimately, in such a situation, the internal protector in
the compressor trips. Two problems arise due to internal protector-trip. First: there is no alarm to detect the trip and second: a
compressor internal protector reset may take as long as an hour. This could be critical for quality of frozen food in freezers or cases.
On the other hand, ZXL E2 controller detects the overload externally and actions a temporary shutdown. E2 Diagnostics will then
start transmitting a fault signal. After multiple attempts, and if the error repeats itself as high as six times within an hour, the E2 will
finally shutdown the unit to avoid expensive compressor failure.
The E2 will activate a buzzer to send an alarm signal at unit-lockout which then requires a manual restart. The buzzer is a standard
part for the ZX platform Gold version CDU . The buzzer can be remotely mounted and has volume and mute capability. The E2 is also
designed to activate an externally connected telephone dialer to send fault notice on a preset telephone number.
ZX platform units are designed to operate under extreme ambient temperatures of up to 48 deg C. This extremely high-ambient envelope,
combined with the intelligent E2 controller, provides unparalleled benefits to customers.
7
Figure 09 shows the ZX platform E2 controller and figure 10 shows the ZX platform diagnostics with the buzzer module.
E2 Power Board
E2 Control Board
Figure 09
Remote Buzzer
With Volume
E2 Display Diagnostic
Figure 10
8
Emerson ZX Platform Condensing Unit
PRODUCT MANUAL
The E2 controller consists of 2 electronic board assemblies: E2 power board and control
board. The power board supplies constant DC power to the E2 control board. The E2
control board carries the intelligent chip containing the canned programs. The entire
assembly is pre-installed and wired in the factory on a new unit. Both electronic boards
carry a LED light (refer fig 9 in which the LED on both boards are identified). If the LED lights
are on after power-up of the unit, it indicates normal and proper operation of the electronic
boards. Once these lights are on, the rest of the unit including the compressor is
monitored and digital messages are shown on the diagnostic panel.
Table 01 shows a list of fault detections enabled by E2 controller and diagnostics on ZX
platform CDU. The diagnostics are standard features on the Emerson ZX platform Gold
version.
The table 02 summarizes fault conditions under which the E2 controller initiates “temporary
shutdown—with-auto-restart” and “lock-out trip-condition with- manual-restart”
Fault
Temporary Shutdown/
Auto Restart
Phase Reversal/ Loss Of Phase
High Pressure Trip
Low Pressure Trip (only on MT Units)
E2 Fault Detection Items
• Compressor Phase Reversal
• Loss Of Phase (In 3 Phase Models)
• Compressor Over Current
• Compressor Protector Trip Detection
• Discharge Gas Temperature Over Heat
• High Pressure Cut Out
• Low Pressure Cut Out (MT CDU Only)
• Excessive Refrigerant Flood Back
• Compressor Minimum Off Time
• E2 Sensor Failures
Table 01
Lock Out Errors/
Manual Restarts
Incorrect 3 Phase Sequence
< 5 Trips In 1 Hour
6th Trip Within 1 Hour
At Every LP Trip
No Lock Out
Discharge Gas Temperature Overheat
< 5 Trips In 1 hour
6th Trip Within 1 Hour
Compressor Over Current
< 5 Trips In 1 Hour
6th Trip Within 1 Hour
Compressor Short Cycling
3 Minutes Between Starts
No Lock Out
~ 20% Flood Back, Warning Only
< 5 Trips In 1 Hour
6th Trip Within 1 Hour
Warning Only
No Lock Out
Excessive Suction Flood Back
Discharge Sensor Failure (only on LT Units)
Other Thermal Sensor Failures
No Lock Out
Table 02
The E2 control is also designed to apply a ZX
defrost (DF) module. The ZX DF module is a
basic time initiated DF module. The defrost
module is supplied as an optional accessory.
The DF module has two rotary switches by
which the user can set up the defrost duration
and defrost interval. The DF module also
enables a manual defrost as an override to the
rotary switch setting of defrost interval. Figure
11 shows the defrost module
Defrost Duration (in Minutes)
Manual Defrost
Button
Defrost Interval
(In Hours)
Remote Connector
For Manual Defrost
E2 Connector
Figure 11
9
ZX platform- technical specifications
Nomenclature
Code
ZX
Description
Unit Family
Code Description
Medium Temp
L
Low Temp
Code
E
0
Oil Type
Description
Ester Oil
Mineral Oil
Compressor Motor
Code Description
T
Three Phase
Code Nominal Capacity(HP)
020
2
025
2.5
030
3
035
3.5
040
4
050
5
060
6
075/76
7.5
Bill of Material
Compressor Motor
Protection
Code
Description
F
Internal Inherent
Protection
Bill Of Material (BOM)
ZX Medium Temperature
BOM Number
Liquid Line Filter Dryer/Sight Glass
Oil Separator
Adjustable LP Switch
Fan Speed Controller
Diagnostic Module
Buzzer
Circuit Breaker
Sound Jacket
Defrost Module
ZX Low Temperature
BOM Number
Liquid Line Filter Dryer/Sight Glass
Oil Separator
Adjustable LP Switch
Fan Speed Controller
Diagnostic Module
Buzzer
Circuit Breaker
Sound Jacket
Defrost Module
Note: Acc=Accessory
10
Silver
Gold
300
350
301
351
400
450
401
451
ACC
ACC
ACC
ACC
ACC
ACC
ACC
ACC
Gold
450
451
ACC
ACC
Electrical Codes
Code
50HZ
D
380V/420V-3
Emerson ZX Platform Condensing Unit
PRODUCT MANUAL
Envelope
ZX medium temperature
Refrigerant –R404A, R22
0
Maximum Suction Gas Temperature: 20 C
R22 Except ZX0750
48
1
R404A
Ambient Temperature0C
43
Fan Speed Control Option For Ambient Lower Than 100C
10
10
-20
-15
Evaporating Temperature0C
Note 1 : For model ZX0750
5
12
Max Amb: 43°C , Max Evep: 5°C
ZX low temperature
Refrigerant –R404A, R22
0
Maximum Suction Gas Temperature: 20 C
48
Ambient Temperature0C
43
Fan Speed Control Option For Lower Than 100C Ambient
10
10
-40
-15
0
Evaporating Temperature0C
11
Performance Tables
ZX MT Unit Capacity And Power (kW) At 50Hz For Refrigerant R22
Model
ZX0200
ZX0300
ZX0400
ZX0500
ZX0600
ZX0750
ZX0760
Capacity
Power
Evaporating Temperature (oC)
Evaporating Temperature (oC)
Ambient
Temperature
(oC)
-15
-10
-5
0
5
10
12
-15
-10
-5
0
5
10
12
27
2.84
3.61
4.18
4.95
5.87
7.03
7.45
1.33
1.37
1.41
1.47
1.53
1.70
1.79
32
2.65
3.33
4.01
4.75
5.61
6.54
6.96
1.45
1.50
1.58
1.64
1.71
1.84
1.88
38
2.38
3.11
3.81
4.55
5.37
6.19
6.68
1.62
1.74
1.83
1.87
1.91
2.03
2.08
43
1.93
2.74
3.48
4.23
5.06
5.99
6.33
1.78
1.83
1.95
2.05
2.11
2.20
2.25
48
1.68
2.30
3.18
3.87
4.69
5.51
5.80
2.21
2.31
2.44
2.51
2.54
2.55
2.64
27
4.30
5.20
6.28
7.57
9.09
10.22
10.80
1.95
2.04
2.17
2.20
2.23
2.43
2.49
32
4.12
4.90
5.95
7.28
8.69
9.79
10.31
2.10
2.20
2.32
2.34
2.46
2.70
2.77
38
3.68
4.62
5.65
6.85
8.29
9.06
9.63
2.37
2.48
2.59
2.60
2.76
3.06
3.12
43
3.27
4.22
5.27
6.50
7.97
8.63
9.08
2.64
2.75
2.84
2.94
3.04
3.32
3.36
48
2.40
3.55
4.65
5.67
6.86
7.97
8.50
2.98
3.18
3.28
3.35
3.50
3.64
3.69
27
5.98
7.20
8.57
10.03
11.54
13.82
14.64
2.64
2.71
2.83
2.98
3.08
3.34
3.36
32
5.46
6.73
8.13
9.62
11.16
13.01
13.85
2.81
2.90
3.06
3.19
3.33
3.68
3.68
38
4.72
6.01
7.42
8.93
10.48
12.09
13.04
3.08
3.27
3.39
3.49
3.65
4.09
4.07
43
4.09
5.37
6.78
8.27
9.80
11.61
12.25
3.29
3.52
3.68
3.80
3.95
4.38
4.39
48
3.55
4.50
6.20
7.57
9.08
10.68
11.23
4.16
4.46
4.49
4.72
4.80
5.07
5.18
27
7.13
8.76
10.44
12.22
14.12
17.28
18.22
2.88
3.03
3.18
3.29
3.47
4.16
4.28
32
6.77
8.31
9.96
11.72
13.68
16.62
17.47
3.37
3.35
3.57
3.67
3.97
4.50
4.58
38
6.24
7.69
9.28
11.06
13.06
15.31
16.34
3.77
3.87
4.07
4.27
4.47
4.98
5.10
43
5.44
6.80
8.36
10.15
12.21
14.60
15.47
4.27
4.27
4.47
4.66
4.96
5.46
5.56
48
3.96
5.80
7.62
9.49
11.47
13.49
14.40
5.14
5.21
5.44
5.61
5.80
6.01
6.04
27
8.50
10.41
12.49
14.72
17.66
19.64
20.60
3.51
3.70
3.88
4.16
4.43
4.98
5.32
32
7.71
9.93
11.71
13.94
16.30
18.87
20.10
3.88
4.07
4.25
4.43
4.71
5.29
5.47
38
6.81
8.42
10.57
12.85
15.26
17.77
18.92
4.34
4.53
4.71
4.90
5.08
5.86
5.98
43
5.91
7.23
9.40
11.78
14.26
16.33
17.86
4.90
5.17
5.45
5.64
5.73
6.57
6.66
15.09
16.06
7.22
7.45
48
4.97
7.00
9.25
11.15
13.08
6.02
6.22
6.46
6.69
6.96
27
10.03
12.20
14.41
17.23
20.87
4.34
4.54
4.76
4.98
5.22
32
9.45
11.24
13.90
16.63
20.21
4.77
4.95
5.19
5.51
5.91
38
8.83
10.85
13.25
15.50
19.42
5.36
5.53
5.83
6.25
6.80
43
8.18
10.00
12.29
14.30
18.49
5.95
6.10
6.43
6.93
7.62
27
10.23
12.44
14.70
17.60
21.29
25.49
27.01
4.25
4.45
4.66
4.88
5.12
5.47
5.64
32
9.64
11.46
14.18
16.96
20.61
24.03
25.58
4.67
4.85
5.09
5.40
5.79
5.86
5.97
38
9.01
11.07
13.52
15.80
19.81
22.85
24.65
5.26
5.42
5.72
6.12
6.67
6.64
6.81
43
8.34
10.20
12.54
14.60
18.86
22.34
23.57
5.83
5.98
6.30
6.79
7.47
7.34
7.48
48
7.24
8.55
11.46
14.09
17.47
20.55
21.61
6.79
7.04
7.40
7.89
8.43
8.74
8.78
o
Note: Based on the return gas temperature of 18.3 C, Power include condenser fan.
Shaded ambient data are typical design conditions for unit selection
12
Emerson ZX Platform Condensing Unit
PRODUCT MANUAL
Performance Tables
ZX MT Unit Capacity And Power (kW) At 50Hz For Refrigerant R404a
Model
ZX020E
ZX030E
ZX040E
Capacity
Power
Evaporating Temperature (oC)
Evaporating Temperature (oC)
Ambient
Temperature
(oC)
-20
-15
-10
-5
0
5
-20
-15
-10
-5
0
5
27
3.30
3.90
4.44
5.08
5.79
6.60
1.64
1.67
1.70
1.76
1.84
1.96
32
2.85
3.39
3.92
4.48
5.08
5.76
1.79
1.81
1.84
1.90
2.00
2.12
38
2.42
2.90
3.36
3.85
4.36
4.94
1.95
1.99
2.02
2.07
2.16
2.26
43
1.94
2.43
2.89
3.34
3.81
4.30
2.14
2.18
2.22
2.27
2.34
2.41
27
4.04
4.87
5.81
6.85
7.99
9.23
2.14
2.19
2.24
2.32
2.42
2.55
32
3.75
4.52
5.39
6.35
7.40
8.55
2.40
2.44
2.50
2.57
2.67
2.81
38
3.39
4.08
4.85
5.72
6.67
7.69
2.72
2.75
2.80
2.88
3.00
3.15
43
3.06
3.69
4.39
5.17
6.03
6.97
3.06
3.09
3.14
3.21
3.33
3.50
27
5.52
6.57
7.70
8.95
10.37
12.02
2.72
2.86
3.02
3.17
3.31
3.36
32
5.10
6.10
7.13
8.24
9.47
10.87
3.03
3.15
3.31
3.46
3.54
3.68
38
4.61
5.60
6.57
7.57
8.64
9.85
3.45
3.58
3.71
3.85
3.97
4.03
43
3.98
5.00
5.95
6.89
7.83
8.85
3.87
4.00
4.12
4.23
4.33
4.38
27
7.49
9.05
10.67
12.31
13.93
15.51
3.65
3.73
3.86
4.02
4.25
4.53
32
6.56
8.12
9.76
11.43
13.10
14.74
4.11
4.20
4.32
4.50
4.72
5.00
38
5.56
7.07
8.67
10.32
11.98
13.63
4.59
4.68
4.79
4.96
5.16
5.42
43
4.88
6.28
7.79
9.37
10.98
12.58
5.11
5.17
5.27
5.40
5.59
5.81
27
8.24
9.72
11.47
13.30
15.69
18.48
3.69
3.84
4.06
4.33
4.62
4.93
32
7.53
9.06
10.72
12.58
14.72
17.20
4.40
4.54
4.75
5.01
5.28
5.56
38
6.74
8.25
9.83
11.55
13.48
15.69
4.93
5.05
5.25
5.47
5.72
5.98
43
5.90
7.48
9.07
10.74
12.57
14.63
5.59
5.69
5.85
6.06
6.28
6.51
27
9.04
10.86
12.75
15.07
17.76
20.13
4.08
4.26
4.50
4.80
5.13
5.46
32
8.33
10.01
11.82
13.86
16.20
18.92
4.88
5.03
5.27
5.54
5.86
6.17
38
7.30
8.74
10.62
12.47
14.54
16.92
5.46
5.61
5.82
6.06
6.35
6.63
43
6.26
7.93
9.61
11.38
13.32
15.50
6.20
6.32
6.49
6.71
6.96
7.22
27
9.22
11.07
13.00
15.37
18.12
20.53
4.00
4.17
4.41
4.70
5.03
5.35
32
8.50
10.21
12.06
14.14
16.53
19.30
4.78
4.93
5.16
5.43
5.74
6.05
38
7.45
8.91
10.83
12.72
14.83
17.26
5.35
5.50
5.70
5.94
6.22
6.50
43
6.39
8.09
9.80
11.61
13.59
15.81
6.07
6.19
6.36
6.57
6.82
7.07
ZX050E
ZX060E
ZX075E
ZX076E
o
Note: Based on the return gas temperature of 18.3 C, Power include condenser fan.
Shaded ambient data are typical design conditions for unit selection
13
Performance Tables
ZX LT Unit Capacity And Power (kW) At 50Hz For Refrigerant R22
Model
ZXL0200
ZXL0250
ZXL0300
ZXL0350
ZXL0400
ZXL0500
ZXL0600
ZXL0750
Ambient
Temperature
(oC)
-40
20
27
32
38
43
48
20
27
32
38
43
48
20
27
32
38
43
48
20
27
32
38
43
48
20
27
32
38
43
48
20
27
32
38
43
48
20
27
32
38
43
48
20
27
32
38
43
48
1.35
1.32
1.32
1.26
1.15
0.99
1.65
1.61
1.56
1.42
1.23
1.10
1.94
1.90
1.80
1.58
1.31
1.21
2.56
2.29
2.12
1.93
1.78
1.61
3.18
2.80
2.58
2.39
2.27
2.21
3.50
3.12
2.79
2.65
2.56
2.30
3.70
3.51
3.44
3.28
2.96
2.71
4.20
4.00
3.76
3.52
3.41
3.12
-35
1.57
1.55
1.55
1.48
1.36
1.20
1.90
1.87
1.82
1.68
1.48
1.28
2.29
2.19
2.09
1.87
1.59
1.35
2.90
2.64
2.47
2.27
2.09
1.90
3.85
3.42
3.17
2.93
2.78
2.68
4.30
3.84
3.56
3.43
3.31
2.97
4.70
4.44
4.35
4.17
3.86
3.50
5.60
5.16
4.71
4.55
4.42
4.04
Capacity
Power
Evaporating Temperature (oC)
Evaporating Temperature (oC)
-30
1.90
1.87
1.86
1.78
1.66
1.49
2.20
2.12
2.09
1.97
1.79
1.54
2.67
2.58
2.49
2.27
1.99
1.63
3.44
3.19
3.02
2.80
2.59
2.37
4.64
4.16
3.87
3.59
3.41
3.28
5.30
4.73
4.48
4.35
4.16
3.73
5.84
5.51
5.37
5.17
4.85
4.29
6.90
6.18
5.84
5.71
5.53
5.01
-25
2.28
2.26
2.24
2.15
2.03
1.85
2.70
2.67
2.63
2.49
2.30
2.03
3.17
3.08
2.99
2.77
2.50
2.13
4.15
3.91
3.72
3.48
3.25
2.98
5.56
5.03
4.71
4.39
4.17
4.01
6.40
5.79
5.56
5.38
5.00
4.56
7.14
6.72
6.53
6.29
5.96
5.39
8.00
7.43
7.17
7.02
6.75
6.06
o
-20
2.76
2.73
2.70
2.61
2.47
2.29
3.40
3.31
3.26
3.10
2.89
2.61
3.78
3.69
3.60
3.39
3.11
2.75
5.01
4.76
4.56
4.28
4.02
3.71
6.60
6.02
5.67
5.31
5.06
4.86
7.73
7.01
6.77
6.53
6.16
5.57
8.63
8.09
7.85
7.55
7.19
6.60
9.50
8.91
8.68
8.48
8.07
7.50
-15
3.30
3.27
3.24
3.13
2.99
2.81
4.10
4.03
3.97
3.79
3.57
3.27
4.48
4.40
4.32
4.10
3.83
3.47
5.98
5.71
5.49
5.19
4.89
4.53
7.77
7.14
6.76
6.35
6.07
5.83
9.08
8.39
8.12
7.79
7.30
6.60
10.32
9.66
9.34
8.98
8.57
7.96
11.43
10.80
10.40
10.09
9.52
8.70
-10
3.93
3.89
3.85
3.74
3.59
-5
4.64
4.59
4.54
4.42
4.27
0
5.41
5.36
5.31
5.18
5.02
4.85
4.84
4.76
4.56
4.33
5.73
5.72
5.63
5.42
5.17
6.72
6.69
6.58
6.36
6.09
5.40
5.20
5.14
4.92
4.65
6.52
6.44
6.06
5.85
5.58
8.06
7.85
7.63
7.30
6.95
7.03
6.75
6.50
6.16
5.81
8.14
7.83
7.55
7.16
6.77
9.26
8.92
8.62
8.18
7.73
9.06 10.48 12.03
8.39 9.76 11.26
7.97 9.31 10.77
7.52 8.82 10.25
7.21 8.47 9.86
10.62
9.92
9.60
9.15
8.52
12.33
11.60
11.21
10.61
9.81
14.21
13.42
12.94
12.17
11.18
12.23
11.42
11.02
10.58
10.12
14.38
13.41
12.91
12.37
11.85
16.78
15.64
15.03
14.38
13.78
13.31
12.58
12.31
11.86
11.08
15.49
14.78
14.44
13.80
12.76
17.97
17.24
16.78
15.90
14.58
Note: Based on the return gas temperature of 5 C, Power include condenser fan.
Shaded ambient data are typical design conditions for unit selection
14
-40
0.94
1.10
1.26
1.51
1.76
2.05
1.18
1.32
1.51
1.85
2.22
2.66
1.28
1.36
1.55
1.92
2.36
2.91
1.68
1.81
2.08
2.52
2.88
3.18
1.94
2.27
2.58
3.04
3.50
4.01
2.05
2.56
2.89
3.30
3.68
4.12
2.56
3.21
3.58
4.05
4.58
5.32
3.02
3.51
3.88
4.40
4.93
5.58
-35
1.03
1.20
1.36
1.61
1.87
2.16
1.28
1.40
1.59
1.91
2.27
2.70
1.45
1.52
1.70
2.07
2.51
3.05
1.73
1.87
2.16
2.60
2.97
3.28
2.08
2.43
2.75
3.23
3.69
4.22
2.24
2.72
3.04
3.46
3.85
4.32
2.72
3.37
3.76
4.27
4.85
5.65
3.17
3.68
4.06
4.61
5.17
5.85
-30
1.12
1.29
1.45
1.71
1.97
2.26
1.38
1.49
1.66
1.97
2.31
2.74
1.60
1.67
1.85
2.21
2.64
3.18
1.79
1.95
2.25
2.71
3.09
3.40
2.22
2.59
2.93
3.42
3.90
4.44
2.42
2.87
3.19
3.62
4.04
4.54
2.89
3.55
3.96
4.51
5.13
5.98
3.34
3.87
4.28
4.85
5.43
6.14
-25
1.19
1.36
1.53
1.79
2.05
2.35
1.48
1.57
1.72
2.02
2.35
2.77
1.74
1.80
1.98
2.33
2.76
3.29
1.88
2.05
2.36
2.82
3.21
3.53
2.38
2.76
3.11
3.62
4.11
4.67
2.59
3.03
3.35
3.79
4.24
4.78
3.09
3.75
4.17
4.76
5.42
6.33
3.53
4.08
4.52
5.12
5.73
6.47
-20
1.26
1.43
1.61
1.87
2.13
2.44
1.57
1.64
1.79
2.07
2.39
2.79
1.87
1.92
2.09
2.45
2.86
3.39
1.98
2.17
2.48
2.96
3.35
3.68
2.54
2.94
3.30
3.83
4.33
4.91
2.77
3.20
3.53
3.99
4.46
5.04
3.32
3.97
4.40
5.02
5.72
6.68
3.74
4.33
4.79
5.43
6.07
6.84
-15
1.31
1.49
1.67
1.94
2.21
2.51
1.65
1.71
1.85
2.11
2.43
2.82
1.99
2.03
2.20
2.54
2.96
3.48
2.09
2.30
2.62
3.11
3.51
3.84
2.70
3.12
3.50
4.04
4.56
5.15
2.96
3.38
3.71
4.20
4.70
5.33
3.57
4.22
4.66
5.30
6.04
7.05
3.99
4.61
5.10
5.77
6.45
7.25
-10
1.36
1.55
1.73
2.00
2.27
-5
1.40
1.59
1.78
2.05
2.32
0
1.43
1.63
1.81
2.09
2.37
1.74
1.78
1.90
2.15
2.45
1.81
1.84
1.95
2.19
2.48
1.89
1.90
2.00
2.22
2.50
2.09
2.13
2.29
2.63
3.04
2.18
2.21
2.37
2.70
3.11
2.26
2.28
2.43
2.76
3.16
2.22
2.44
2.78
3.27
3.68
2.37
2.60
2.94
3.44
3.86
2.52
2.76
3.11
3.63
4.05
2.88
3.32
3.71
4.27
4.80
3.06
3.52
3.92
4.50
5.04
3.25
3.73
4.15
4.73
5.30
3.16
3.57
3.92
4.43
4.98
3.37
3.79
4.15
4.70
5.28
3.60
4.02
4.41
4.99
5.62
3.85
4.49
4.94
5.60
6.38
4.16
4.78
5.24
5.93
6.73
4.50
5.11
5.56
6.28
7.11
4.27
4.93
5.45
6.16
6.87
4.60
5.29
5.84
6.59
7.34
4.96
5.70
6.28
7.08
7.86
Emerson ZX Platform Condensing Unit
PRODUCT MANUAL
Performance Tables
ZX LT Unit Capacity And Power (kW) At 50Hz For Refrigerant R404a
Model
ZXL020E
ZXL025E
ZXL030E
ZXL035E
ZXL040E
ZXL050E
ZXL060E
ZXL075E
Ambient
Temperature
(oC)
20
27
32
38
43
48
20
27
32
38
43
48
20
27
32
38
43
48
20
27
32
38
43
48
20
27
32
38
43
48
20
27
32
38
43
48
20
27
32
38
43
48
20
27
32
38
43
48
-40
1.83
1.66
1.45
1.25
1.10
0.99
2.00
1.89
1.80
1.63
1.31
1.20
2.23
2.09
2.08
2.00
1.73
1.50
2.70
2.55
2.47
2.37
2.28
2.17
3.78
3.24
3.02
2.85
2.67
2.38
4.42
3.80
3.52
3.25
2.99
2.63
4.84
4.49
4.30
4.07
3.81
3.42
5.50
4.99
4.75
4.49
4.21
3.81
-35
2.17
2.02
1.82
1.49
1.23
1.12
2.36
2.31
2.26
2.03
1.70
1.24
2.87
2.58
2.49
2.33
2.03
1.70
3.47
3.31
3.20
3.08
2.94
2.76
4.51
3.99
3.77
3.56
3.34
2.99
5.18
4.58
4.31
4.03
3.77
3.40
5.80
5.51
5.32
5.02
4.67
4.16
6.64
6.14
5.90
5.61
5.30
4.85
Capacity
Power
Evaporating Temperature (oC)
Evaporating Temperature (oC)
-30
2.55
2.42
2.24
1.93
1.58
1.16
2.86
2.80
2.74
2.50
2.16
1.69
3.62
3.17
3.00
2.77
2.44
2.00
4.25
4.07
3.94
3.75
3.57
3.33
5.38
4.86
4.63
4.37
4.10
3.68
6.21
5.58
5.29
4.98
4.69
4.28
6.92
6.68
6.48
6.12
5.67
5.03
7.94
7.42
7.14
6.80
6.43
5.91
0
-5
-10
-15
-20
-25
2.97 3.42 3.92 4.46 5.04 5.66
2.86 3.34 3.86 4.42 5.02 5.66
2.70 3.19 3.73 4.31 4.92 5.58
2.40 2.92 3.47 4.07 4.70 5.38
2.07 2.60 3.18 3.79 4.44 5.13
1.67 2.21 2.80
3.44 4.10 4.83 5.64 6.53 7.49
3.37 4.02 4.74 5.54 6.42 7.37
3.30 3.94 4.65 5.44 6.31 7.25
3.05 3.68 4.38 5.15 6.01 6.94
2.70 3.31 4.01 4.77 5.62 6.54
2.22 2.82 3.51
4.45 5.35 6.30 7.29 8.30 9.31
3.85 4.60 5.41 6.25 7.61 8.67
3.60 4.27 5.00 5.77 7.35 8.38
3.31 3.92 4.59 5.31 6.95 7.95
2.95 3.54 4.19 4.89 6.55 7.52
2.38 2.96 3.61
5.07 5.95 6.92 8.00 9.22 10.62
4.85 5.69 6.61 7.63 8.78 10.09
4.68 5.48 6.35 7.31 8.40 9.63
4.45 5.17 5.97 6.85 7.84 8.98
4.20 4.86 5.59 6.38 7.29 8.33
3.89 4.48 5.12
6.38 7.49 8.71 10.01 11.39 12.84
5.85 6.93 8.10 9.35 10.66 12.01
5.58 6.63 7.75 8.93 10.16 11.43
5.27 6.25 7.28 8.36 9.48 10.63
4.93 5.83 6.77 7.75 8.76 9.78
4.43 5.23 6.06
7.47 8.91 10.50 12.20 13.98 15.78
6.78 8.12 9.57 11.09 12.64 14.19
6.43 7.69 9.04 10.42 11.81 13.17
6.06 7.22 8.43 9.65 10.84 11.97
5.71 6.78 7.87 8.95 9.97 10.89
5.23 6.21 7.19
8.19 9.59 11.11 12.72 14.41 16.16
7.99 9.42 10.95 12.57 14.27 16.01
7.77 9.17 10.67 12.26 13.91 15.60
7.34 8.66 10.08 11.57 13.11 14.70
6.79 8.00 9.30 10.67 12.09 13.54
6.00 7.07 8.22
9.41 11.06 12.91 14.96 17.24 19.75
8.84 10.40 12.13 14.03 16.12 18.41
8.50 9.99 11.61 13.39 15.33 17.45
8.08 9.46 10.94 12.55 14.30 16.19
7.63 8.90 10.25 11.71 13.28 14.97
7.01 8.16 9.38
-40
1.22
1.35
1.50
1.72
1.95
2.22
1.34
1.59
1.84
2.12
2.44
2.89
1.55
1.67
1.89
2.31
2.77
3.36
1.91
2.26
2.59
3.00
3.31
4.00
2.45
2.69
2.99
3.54
4.08
4.63
2.70
2.92
3.26
3.88
4.43
4.89
3.00
3.62
4.04
4.60
5.17
5.88
3.47
3.93
4.35
4.98
5.61
6.38
-35
1.36
1.47
1.60
1.81
2.03
2.29
1.46
1.68
1.90
2.16
2.45
2.90
1.73
1.84
2.05
2.45
2.91
3.49
1.95
2.33
2.67
3.09
3.40
4.15
2.70
2.88
3.17
3.70
4.22
4.73
3.00
3.16
3.49
4.10
4.64
5.10
3.20
3.84
4.27
4.84
5.41
6.11
3.73
4.20
4.63
5.25
5.89
6.65
-30
1.50
1.60
1.71
1.91
2.11
2.36
1.55
1.77
1.99
2.22
2.50
2.91
1.90
2.00
2.20
2.60
3.05
3.61
2.03
2.43
2.79
3.22
3.58
4.30
2.75
3.10
3.39
3.91
4.40
4.88
3.20
3.39
3.72
4.33
4.87
5.33
3.50
4.08
4.53
5.12
5.69
6.41
4.01
4.51
4.94
5.58
6.22
6.98
-25
1.65
1.73
1.83
2.01
2.20
2.44
1.66
1.87
2.08
2.31
2.57
2.98
2.07
2.15
2.35
2.73
3.18
3.73
2.30
2.56
2.93
3.38
3.70
4.45
3.01
3.34
3.64
4.15
4.62
5.07
3.40
3.62
3.96
4.57
5.12
5.59
3.76
4.36
4.83
5.44
6.03
6.76
4.31
4.84
5.30
5.95
6.60
7.38
-20
1.70
1.86
1.95
2.12
2.30
2.52
1.76
1.97
2.18
2.41
2.67
3.08
2.10
2.30
2.49
2.86
3.30
3.84
2.50
2.72
3.11
3.58
3.91
4.50
3.05
3.40
3.90
4.41
4.87
5.29
3.65
3.86
4.20
4.83
5.40
5.88
3.90
4.66
5.16
5.80
6.42
7.16
4.64
5.21
5.68
6.36
7.03
7.82
-15
1.95
2.00
2.08
2.23
2.39
2.60
2.10
2.23
2.35
2.61
2.90
3.28
2.39
2.45
2.62
2.99
3.41
3.95
2.70
2.90
3.31
3.79
4.14
4.60
3.12
3.50
4.17
4.68
5.12
5.52
3.80
4.09
4.46
5.11
5.70
6.21
4.15
4.97
5.51
6.19
6.84
7.61
4.98
5.59
6.10
6.81
7.51
8.32
-10
2.12
2.14
2.21
2.34
2.50
-5
2.28
2.29
2.34
2.46
2.60
0
2.38
2.44
2.48
2.59
2.72
2.33
2.36
2.48
2.72
3.01
2.44
2.50
2.61
2.84
3.11
2.54
2.64
2.74
2.96
3.22
2.53
2.58
2.75
3.10
3.52
2.60
2.71
2.87
3.21
3.62
2.70
2.83
2.99
3.32
3.72
2.80
3.08
3.52
4.03
4.39
3.00
3.27
3.74
4.28
4.66
3.20
3.47
3.96
4.53
4.94
3.90
4.10
4.43
4.94
5.38
4.07
4.31
4.67
5.19
5.63
4.20
4.40
4.72
5.41
6.03
4.50
4.58
5.00
5.73
6.39
4.41
5.30
5.88
6.61
7.30
4.67
5.63
6.27
7.05
7.78
5.34
6.01
6.55
7.30
8.03
5.70
6.44
7.03
7.83
8.59
4.20
4.50
4.88
5.41
5.85
4.70
4.83
5.29
6.07
6.77
5.20
5.97
6.66
7.51
8.29
6.09
6.89
7.53
8.38
9.19
o
Note: Based on the return gas temperature of 5 C, Power include condenser fan.
Shaded ambient data are typical design conditions for unit selection
15
ZX LT Unit (Liquid Line Temperature)
o
o
Typical Liquid Line Temperature C
Typical Liquid Line Temperature C
o
o
Ambient C
Ambient C
Evap Temp 0C
20
27
32
38
43
48
Evap Temp 0C
20
27
32
38
43
48
-40
-11
-3
7
7
11
14
-40
-8
-1
3
8
13
19
-35
-8
-1
9
9
13
16
-35
-4
2
6
11
15
21
-30
-4
2
12
12
16
19
-30
0
6
9
13
18
23
-25
0
5
14
14
19
23
-25
5
10
13
17
21
26
-20
5
9
18
18
22
26
-20
9
14
17
20
24
30
-15
10
13
21
21
25
30
-15
13
18
21
24
28
34
-10
15
17
25
25
29
-10
16
22
25
29
33
-5
20
22
29
29
33
-5
20
26
29
33
37
0
26
26
33
33
37
0
23
29
33
38
42
o
Typical Values With Individual Values Within +/-5 C
Note: ZXL CDU is designed with vapor injection technology. The condenser liquid line temperature will be sub cooled by the
vapor injection plate heat exchanger.
16
Emerson ZX Platform Condensing Unit
PRODUCT MANUAL
Wiring Diagram (ZX MT & LT Units)
17
Technical Data
ZX MT Units
ZX0200
ZX020E
ZX0300
ZX030E
ZX0400
ZX040E
ZX0500
ZX050E
ZX0600
ZX060E
ZX0750
ZX075E
ZX0760
ZX076E
CDU Capacity@ GB/ARI MT Condition:
ET/AT/RGT -6.7/32/18.3°C (R22/R404A)(KW)
3.85/4.30
5.50/6.00
7.30/7.80
9.30/10.70
11.20/11.80
12.60/13.20
12.85/13.46
CDU COP@ GB/ARI MT Condition:
ET/AT/RGT-6.7/32/18.3°C (R22/R404A)
2.41/2.26
2.50/2.35
2.52/2.29
2.66/2.43
2.60/2.41
2.57/2.40
2.65/2.50
ZX Model
Compressor Model (R22/R404A)
Norminal Input Rating (HP)
2
3
4
5
6
7.5
7.5
MINERAL/
POE
MINERAL/
POE
MINERAL/
POE
MINERAL/
POE
MINERAL/
POE
MINERAL/
POE
MINERAL/
POE
1.18
1.33
1.83
1.83
1.66
1.66
1.66
0.5
0.5
0.5
0.5
0.5
0.5
0.5
4.3/5.0
5.7/6.1
7.4/7.5
8.9/9.6
11.5/11.5
12.0/11.8
12.0/11.8
Compressor Locked Rotor Current (A)
26
36
44.3
58.6
67
101
101
Number of Fans
1
1
1
2
2
2
2
Total Fan Motor (W)
116
116
116
246
246
246
246
Fan Diameter (mm)
450
450
450
450
450
450
450
Fan Speed (rpm)
830
830
830
830
830
830
830
5.1/4.4
5.1/4.4
5.1/4.4
7.2/6.3
7.2/6.3
7.2/6.3
7.2/6.3
Suction Pipe Outer Diameter (Inch)
3/4
3/4
7/8
7/8
7/8
7/8
7/8
Liquid Pipe Outer Diameter (Inch)
1/2
1/2
1/2
1/2
1/2
1/2
1/2
ZX Sound level @ 1m (dBA)
60
60
60
60
60
60
60
Net Weight(kg)
76
79
91
108
112
118
121
1029X424
X840
1029X424
X840
1029X424
X840
1029X424
X1242
1029X424
X1242
1029X424
X1242
1029X424
X1242
2922
2922
2922
5910
5910
5910
5910
Oil Type
Compressor Oil Re Charge Volume (Litres)
Oil Separater Charge Volume (Litres)
Compressor Rated Load Current (A) (R22/R404A)
Receiver Volume at 32C (kg)(R22/R404A)
Dimension of CDU (mm)
Air Flow (m3/h)
18
ZX15KC-TFD ZX21KC-TFD ZX30KC-TFD ZX38KC-TFD ZX45KC-TFD ZX51KC-TFD ZX51KC-TFD
ZX15KCE-TFD ZX21KCE-TFD ZX30KCE-TFD ZX38KCE-TFD ZX45KCE-TFD ZX51KCE-TFD ZX51KCE-TFD
Emerson ZX Platform Condensing Unit
PRODUCT MANUAL
Technical Data
ZX LT Units
ZXL Model
ZXL0200
ZXL020E
ZXL0250
ZXL025E
ZXL0300
ZXL030E
ZXL0350
ZXL035E
ZXL0400
ZXL040E
ZXL0500
ZXL050E
ZXL0600
ZXL060E
ZXL0750
ZXL075E
CDU Capacity@ ARI LT Condition:
ET/AT/RGT-32/32/5°C(R22/R404A)(KW)
1.7/2.11
1.91/2.51
2.34/2.80
2.78/3.65
3.57/4.26
4.05/4.99
4.96/5.91
5.39/6.65
CDU COP@ ARI LT Condition:
ET/AT/RGT-32/32/5°C (R22/R404A)
1.20/1.24
1.17/1.28
1.28/1.29
1.26/1.34
1.24/1.29
1.29/1.36
1.27/1.33
1.28/1.38
CDU Capacity@ GB LT Condition:
ET/AT/RGT-23/32/5°C(R22/R404A)(KW)
2.37/2.86
2.87/3.54
3.21/3.84
4.04/5.00
5.04/6.03
6.02/6.92
6.90/8.44
7.78/9.05
CDU COP@ GB LT Condition:
ET/AT/RGT-23/32/5°C (R22/R404A)
1.51/1.51
1.63/1.67
1.59/1.59
1.68/1.67
1.57/1.60
1.76/1.71
1.62/1.68
1.68/1.66
Compressor Model (R22/R404A)
ZXI06KC-TFD ZXI08KC-TFD ZXI09KC-TFD ZXI11KC-TFD ZXI14KC-TFD ZXI15KC-TFD ZXI18KC-TFD ZXI21KC-TFD
ZXI06KCE-TFD ZXI08KCE-TFD ZXI09KCE-TFD ZXI11KCE-TFD ZXI14KCE-TFD ZXI15KCE-TFD ZXI18KCE-TFD ZXI21KCE-TFD
2
2.5
3
3.5
4
5
6
7.5
MINERAL/
POE
MINERAL/
POE
MINERAL/
POE
MINERAL/
POE
MINERAL/
POE
MINERAL/
POE
MINERAL/
POE
MINERAL/
POE
0.56
0.56
0.56
1.24
1.24
1.24
1.77
1.77
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
5.4/5.6
5.5/6.2
5.7/6.0
7.4/8.3
8.1/8.6
8.8/10
11.1/11.1
12.1/14.6
39.2
39.2
39.2
51.5
51.5
51.5
74
101
1
1
1
1
1
2
2
2
Total Fan Motor (W)
116
116
116
116
116
246
246
246
Fan Diameter (mm)
450
450
450
450
450
450
450
450
Fan Speed (rpm)
830
830
830
830
830
830
830
830
5.1/4.4
5.1/4.4
5.1/4.4
5.1/4.4
5.1/4.4
7.2/6.3
7.2/6.3
7.2/6.3
Suction Pipe Outer Diameter (Inch)
3/4
3/4
3/4
7/8
7/8
7/8
7/8
7/8
Liquid Pipe Outer Diameter (Inch)
1/2
1/2
1/2
1/2
1/2
1/2
1/2
1/2
ZXL Sound level @ 1m (dBA)
60
60
60
61
61
61
61
61
Norminal Input Rating (HP)
Oil Type
Compressor Oil Re Charge Volume(Litres)
Oil Separater Charge Volume (Litres)
Compressor Rated Load Current(A)(R22/R404A)
Compressor Locked Rotor Current (A)
Number of Fans
Receiver Volume at 32C (kg)(R22/R404A)
Net Weight(kg)
Dimension of CDU(mm)
Air Flow (m3/h)
79
81
81
93
93
106
116
121
1029X424
X840
1029X424
X840
1029X424
X840
1029X424
X840
1029X424
X840
1029X424
X1242
1029X424
X1242
1029X424
X1242
2922
2922
2922
2922
2922
5910
5910
5910
19
Dimensional Drawing (ZX MT & LT Units)
d
e
ZX0200/E, 0300/E, 0400/E
ZXL0200/E, 0250/E, 0300/E, 0350/E, 0400/E
c
352
W
Power Supply Hole
Liquid Service Valve
H
Suction Service Valve
172
90
94
23
D
70
a
70
b
e
ZX0500/E, 0600/E, 0750/E, 0760/E
ZXL0500/E, 0600/E, 0750/E
d
W
c
352
H
Power Supply Hole
Suction Service Valve
Liquid Service Valve
172
90
94
23
D
70
a
70
b
ALL MODELS
110
Y
2 HOLES 15MM DIA
2-R7.5MM GROOVE
X
WIDTH HEIGHT DEPTH MTG CENTRES
INSTALLATION CLEARANCES
H
D
X
Y
mm
mm
mm
mm
mm
M.FI.
M.FI.
mm mm mm mm mm
1029
ZX0200/E, 0300/E, 0400/E
ZXL0200/E,0250/E,0300/E,0350/E,0400/E
840
424
580
388
3/4" 1
1/2"
300
500 300 500 500
1242
424
580
388
7/8"
1/2"
300
500 300 500 500
MODEL
ZX0500/E, 0600/E, 0750/E, 0760/E
ZXL0500/E, 0600/E, 0750/E
1029
NOTE 1 : ZX MT 2HP & 3HP: 3/4"˗ZX MT 4HP: 7/8"
ZX LT 2HP, 2.5HP & 3HP: 3/4"˗ ZX LT 3.5HP & 4HP: 7/8"
20
CONN. SIZE
W
Suction* Liquid*
a
b
c
d
e
Emerson ZX Platform Condensing Unit
PRODUCT MANUAL
Diagnostic Messaging – LED Definitions (ZX MT and LT Units)
LED1-Unit Status
Display
Status
LED2-Error/Warning Code
Display
Error/Warning
Idle
(Stop When Reach To Set-point)
No error/warnings
Run
Compressor Phase Error
(Wrong Phase Sequence/Loss Of Phase)
About To Start
1
Compressor Inside Thermal Protector Trip
Defrost
Compressor Over Current
Stop Due To Error
Discharge Gas Overheat
Lockout
Compressor High Pressure Cut Out
Compressor Low Pressure Cut Out
2
DLT Thermistors Failure
Ambient Temperature Sensor Failure
Mid-coil Temperature Sensor Failure
PHE Vapor In Temperature
Sensor Failure or over range
3
PHE Vapor Out Temperature
Sensor Failure or over range
3
System Liquid Flood Back Warning
Note:
1
This signal is for Fresh Start, Normal Start Program and any start request delay.
2
“LP Cutout” signal is not applicable in ZXL condensing unit.
3
PHE Vapor In/Out Temperature Sensor is not applicable in ZX medium temperature condensing unit.
21
Diagnostic Initialization Message (ZX MT and LT Units)
When the unit is initially powered on, the diagnostic module will show the following signal.
(1 second)->
(3 seconds)->
(3 second)->
- Software Version No.
- Unit Identification Code
“F”-With OD Fan Speed Control; “-”- W/O OD Fan Speed Control
“L”- ZXL; “-” - ZX
- Power On
E2 control board dip switch setting
The E2 control board has 2 dip switches (2-bit and 3-bit) and 1 rotary switch. The rotary switch and the 2-bit dip switch are used in
combination to select the compressor used on the unit. The selected compressor relates to the over-current-limit for the specified unit.
The 3-bit dip switch is used if the customer chooses to use the E2 control for evaporator fan control.
Fig 12 shows the dip switches and rotary switch in the E2 control board.
2-Bit Dip Switch
3-Bit Dip Switch
Rotary Switch
E2 Control Board
Figure 12
22
Emerson ZX Platform Condensing Unit
PRODUCT MANUAL
ZX MT Units (Dip Switch And Rotary Switch Settings)
Model Name** Rotary Switch
2bit Dip-Switch
3bit Dip-Switch
Spare Board
0
ON/ON
ZX15KC/E-TFD
1
ON/ON
ZX21KC/E-TFD
2
ON/ON
OFF/OFF/OFF
Evaporator Fan On/Off Logic Same
As Compressor
(this is the factory default setting)
ZX30KC/E-TFD
3
ON/ON
ZX38KC/E-TFD
4
ON/ON
ZX45KC/E-TFD
5
ON/ON
ZX51KC/E-TFD
6
ON/ON
ON/ON/ON
Evaporator fan will be ON all the
time Irrespective of compressor is
ON or OFF)
The settings are pre-set at factory in new units
ZX LT Units (Dip Switch And Rotary Switch Settings)
Model Name** Rotary Switch
2bit Dip-Switch
Spare Board
0
ON/ON
ZXI06KC/E-TFD
1
ON/ON
ZXI08KC/E-TFD
2
ON/ON
ZXI09KC/E-TFD
3
ON/ON
ZXI11KC/E-TFD
4
ON/ON
ZXI14KC/E-TFD
5
ON/ON
ZXI15KC/E-TFD
6
ON/ON
ZXI18KC/E-TFD
7
ON/ON
ZXI21KC/E-TFD
8
ON/ON
3bit Dip-Switch
OFF/OFF/OFF
Evaporator Fan On/Off
Logic Same As Compressor
(this is the factory default setting)
ON/ON/ON
Evaporator fan will be ON all the
time Irrespective of compressor
is ON or OFF)
The settings are pre-set at factory in new units
23
E2 controller trip set-points & actions (ZX MT & LT units)
Fault Type
Trip Set Point
E2 Control Actions
Auto Resets
Possible Error And Solution
Reverse Phase
/ Loss Of
Phase
(3 Phase Only)
Incorrect voltage
Sequence
-Lockout unit
-Display Incorrect Phase Sequence on
diagnostic
-Initiate Buzzer/ Dialer Relay
Unit will not
start unless it
is wired
correctly
-Change voltage sequence at
circuit break.
-Check voltage sequence of the
compressor;
Fresh Start
If power is reset,
ambient < 35˚C or
compressor off> 1
hour & signal for
compressor start
Auto start
-Nothing is wrong, just wait till
compressor runs continuously.
High Pressure
Trip
Low Pressure
Trip
(Only in Med
Temp Unit)
Discharge
Gas Overheat
Over Current
Electrical
Failure
Compressor
Rapid Cycling
24
-Compressor runs 3 sec and stops 20 sec
-After 3 cycles, compressor runs
continuously.
-Display fresh start on diagnostic
-Stop the unit
-Display HP trip on diagnostic
Contact Open At 3.0 -Display waiting to restart on diagnostic
±0.15Mpa
-Auto start the unit after 3 minutes
Contact Close At
-Lockout unit if 6 trips in less than 1 hour
-Display HP lockout on diagnostic
2.4±0.15Mpa
-Initiate Buzzer/ Dialer Relay
Contact Open At
0.1±0.05Mpa
Contact Close At 0.2
±0.05Mpa
Discharge
Temperature Over
132˚C
Set Based On
Compressor
-Stop the unit
-Display LP trip on diagnostic
-Display waiting to restart on
diagnostic
-Auto start the unit after 3 minutes
-Stop the unit
-Display DLT trip on diagnostic
-Display waiting to restart on diagnostic
-Auto start the unit after 3 minutes
-Lockout unit if 6 trips in less than 1 hour
-Display DLT overheat lockout on
diagnostic
-Initiate Buzzer/ Dialer Relay
-Stop the unit
-Display over current trip on diagnostic
-Display waiting to restart on diagnostic
-Auto start the unit after 3 minutes
-Lockout unit if 6 trips in less than 1 hour
-Display over current lockout on
diagnostic
-Initiate Buzzer/ Dialer Relay
5 Auto starts
in I Hour
Auto Start
5 Auto starts
in I Hour
5 Auto starts
in I Hour
-Check whether HP cutout is
functioning or is connected to
control board;
-Check whether condenser fan
can run;
-Check liquid line solenoid valve,
liquid service valve are open;
-Check whether evaporator need
de-frost;
-Check return gas service valve, is
open;
-Check LP cutout is functioning or
is connected to control board
-Check liquid line sight glass is full;
-Check whether EXV is functioning
and connected to control board
Check rotary switch, make sure it
is on the right position according
to unit model;
-Check oil level through compressor
sight glass (Low temp unit only);
Compressor not
drawing current
after compressor
contactor orangized
-Display compressor protector trip on
diagnostic
-Initiate Buzzer/ Dialer Relay
-Auto start when protector reset, turn
off buzzer/Dialer
Auto start
-Check whether contactor is pull-in?
If not, check wiring of contactor coil;
-Check wiring, make sure
compressor is connected to
contactor, and is powered;
-Compressor motor thermal
protector trips, wait till it reset.
Minimum 3 minutes
OFF time between
starts
-Delay comp start, if minimum off
time is less than 3 min
-Display about to turn on diagnostic
Auto start
-Compressor start signal is active
when unit just stops; the only thing
need to do is to wait till unit start.
Emerson ZX Platform Condensing Unit
PRODUCT MANUAL
Fault Type
Trip Set Point
E2 Control Actions
(Only Low Temp Unit)
-Stop the unit
(A) Actual DLT>160°C -Display DLT sensor failure on the
diagnostic
(B) DLT Sensor fails -Display waiting to restart on diagnostic
and Actual DLT> 80°C -Auto start the unit after 3 minutes
-Lockout unit if 6 trips in less than 1 hour
(C) Both coil-in and -Display DLT sensor failure lockout on
DLT sensor fail (short diagnostic
-Initiate Buzzer/ Dialer Relay
Discharge Line
circuit)
And Coil In
Temperature
(Only Med Temp Unit)
(D) Coil in sensor
-Display DLT sensor failure on
Sensors
fails(short) and
diagnostic
Failure
actual DLT<73˚C
-Continue to run the unit on default
mode
(A) Coil in sensor
fails(open) and
actual DLT<73˚C
(B) Both coil-in and
DLT sensor fail (open
circuit)
Ambient
Temperature
Sensor Failure
Condenser
Mid-Coil
Sensor Failure
PHE Vapor In
Sensor Failure
(Only Low
Temp Unit)
PHE Vapor
Out Sensor
Failure
(Only Low
Temp Unit)
Ambient sensor
reads <-30˚C or
>63˚C
(Both Low and Med Temp Unit)
-Display DLT sensor failure on
diagnostic
-Continue to run the unit on default
mode
-Display ambient temp sensors failure
on diagnostic
-Continue to run the unit on default
mode
-Display mid coil temp sensors failure
Mid coil sensor reads on diagnostic
-Continue to run the unit on default
<-30˚C or >63˚C
mode
Vapor In sensor
reads <-16˚C or
>73˚C
-Display sensor error on diagnostics
-Continue to run the unit on default
mode
Vapor out sensor
reads <-16˚C or
>73˚C
-Display sensor error on diagnostics
-Continue to run the unit on default
mode
Auto Resets
5 Auto start
in I Hour
Possible Error And Solution
-Check liquid sight glass is full. If
not, system must have leakage at
somewhere;
-Check whether DLT sensor is
connected to control board;
-Check whether DLT sensor is OK.
If not, replace it with a good one;
Run
Run
Run
Run
Run
Run
-Check whether Coil In sensor is
OK. If not, replace it with a good one
-Check whether the sensors are
connected to control board;
-Check whether Coil-in is OK. If
not, replace it with a new one;
-Check whether compressor is
having excessive flood back.
-Check whether actual Ambient
temperature is out of range;
-Check whether Ambient sensor is
OK and connected to control board.
-Check whether actual mid-coil
temperature is out of range;
-Check whether mid-coil sensor is
OK and connected to control
board.
-Check whether actual temperature
is out of range;
-Check whether the sensor is
connected to control board;
-Check whether the sensor is
mounted at the right position;
-Check whether the sensor is in heat
isolation material;
-Check whether the sensor is failed.
Vapor injection: specific application tips
ZX LT CDU
ZX LT CDU applies vapor injection technology. As explained in the previous section, vapor injection improves LT operational efficiency and
provides a reliable LT envelope. Vapor injection sub cools the main liquid line using the economizer cycle. The sub cooling of liquid line calls
for some specific application tips which are applicable only for ZX LT CDU. They are
1. Liquid line pipe connecting the CDU service valve to the evaporator expansion valve has to be well insulated separately. The
recommended insulation thickness is 12.5 mm (1/2 inches)
2. The lower liquid in temperature can increase the evaporator expansion valve capacities. Please follow valve manufactures recommended
liquid temperature correction factors for proper selection of evaporator expansion valve.
25
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aprefrigeration@emersonclimate.com
Jan 2009
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