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 cap
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 – 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.
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.
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.
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.
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 Sucti
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.
Figure 09 shows the ZX platform E2 controller and figure 10 shows the ZX platform diagnostics with the buzzer module.
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).
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.
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
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.
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.
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.
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.
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
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.
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.
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.
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
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.
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
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.
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 cir
Contact us at: Emerson Climate Technologies, Asia Pacific Headquarters 10/F, Pioneer Building,, 213 Wai Yip Street, Kwun Tong, Kowloon, Hong Kong. Tel: (852) 2866 3108 Fax: (852) 2520 6227 Australia Emerson Climate Technologies Australia Pty Ltd Unit R7, 391 Park Road Regents Park, NSW 2143, Australia Tel: (61-2) 9795 2800 Fax: (61-2) 9738 1699 China - Shanghai c/o Emerson Climate Technologies (Suzhou) Co. Ltd Shanghai Sales Office 16/F., Jiu Shi Tower, 28 Zhong Shan Road (South), Shanghai, P.R.
