Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for Emerson KHZ506
Summary of Contents for Emerson KHZ506
- Page 1 ZSI Scroll Condensing Units User Manual...
-
Page 2: Table Of Contents
Table of Content Disclaimer Icon Explanation Safety Instructions CDU handing Nomenclature CoreSense Features and Benefits Scope Of supply Physical Layout Technical Specification Installation Qualified Oils & Refrigerant Location and fixing Installation Clearance Refrigeration Piping Installation Brazing Guideline Wiring Diagram Start Up and Operation Leak Test System Evacuation Refrigerant charging &... -
Page 3: Disclaimer
Disclaimer Thank you for purchasing the Emerson Copeland ZSI low Temperature Condensing units. We trust that you will see this product meeting your refrigeration needs efficiently and efficaciously. Please read through the User Manual thoroughly to familiarize yourself with the installation and commissioning process of this product and how to use it optimally to suit your needs. -
Page 4: Safety Instructions
Safety Instruction: The equipment has been designed and manufactured to meet international safety standards but, like any mechanical/electrical equipment, care must be taken if you are to obtain the best results. • Service and maintenance of this unit, that is Electrical and Mechanical in nature should be carried out by technically trained and competent personnel. -
Page 5: Nomenclature
Nomenclature: CDU Family Capacity First two digits in Cooling Capacity at 60Hz (Btu/hr) Code Description CDU with Serviceable Chassis Refrigerant Code Description R404a Motor Circuit Code Description 3 Phase Scope of Supply Compressor Family Code Description Voltage Range Scroll Compressor Code Description 400V(380-420),50Hz, 3Ph... -
Page 6: Coresense Features And Benefits
Features & Benefits: Emerson Commercial and Residential Solutions is pleased to introduce the Copeland Scroll™ KHZXXXLRL condensing units for low temp applications. These condensing units are built with the ZSI scroll compressors with liquid injection and premium on-board CoreSense™ electronics features for diagnostics plus protection and come with a service door for ease of access and serviceability. - Page 7 CoreSense™ Electronics Module: CoreSense™ electronics Module The KHZXXXLRL use the proven ZSI compressor range which features Liquid Injection Technology controlled by an intelligent electronics platform—the CoreSense™ Control Board. CoreSense™ regulates liquid injection by sensing the Discharge Line Temperature (DLT) to widen the operating envelope and enhance the product reliability. It also features LED display that alerts the user of sensor status and Electronic Expansion Valve (EEV) operation.
- Page 8 LED Display Description LED Blinking Pattern Indicates DLT Sensor Status (Yellow Green) LED2 and LED3 Combination and Blinking Patterns Indicate EXV Opening or Closing (Yellow Green) LED2 and LED3 Blink Once When Entering or Exiting EXV Manual Operation (Yellow Green) LED4 Turns on as an Alarm when Triggered by any of the following: 1) DLT overheat protection (Red)
-
Page 9: Scope Of Supply
Standard Scope of Supply: The following components are included in the KHZXXXLRL - E5EC6C condensing unit scope of supply: Table 1: Scope of Supply Details of KHZXXXLRL CDU models Model KHZ506 KHZ508 KHZ509 KHZ511 KHZ514 KHZ515 KHZ518 KHZ521 ✓ ✓ ✓... -
Page 10: Technical Specification
Technical Specifications: Refer Table 2 below for the dimension, weight & other mechanical details of the product. • Table 2: Mechanical Details of KHZXXXLRL CDU models Mounting Receiver Dimensions Suction Liquid Line Sound No of W/V/P Weight Dimensions Line CDU Model* Fans W X D W/V/P... - Page 11 Refer Table 3, for the Electrical details of the KHZXXXLRL CDU models as under • Table 3: Electrical data for the KHZXXXLRL CDUs CDU MCC Contactor Cu. Cable Size Model Compressor Rated Voltage Rating ZSI06KQE-TFM 2.5 Sq. mm KHZ506LRL-E5EC6C 380-420V/50 Hz/3Ph 2.5 Sq.
-
Page 12: Installation
Installation The condensing unit should be located in such a place to prevent any dirt, plastic bag, leaves or papers from covering the condenser and its fins. The unit must be installed without restricting the airflow. A clogged condenser will increase the condensing temperature, thus reduce the cooling capacity, and lead to a high-pressure switch tripping. -
Page 13: Location And Fixing
Location and Fixing • The unit should always be installed in a location that ensures clean air flow. Both service access and airflow have been considered in making these recommendations. • Where multiple units are to be installed in the same location, the contractor needs to consider each individual case carefully. -
Page 14: Refrigeration Piping Installation
Refrigeration Piping Installation All interconnecting pipes should be of refrigeration grade, clean, dehydrated and must remain capped at both ends until installation. Even during installation, if the system is left for any reasonable period (say two hours), pipes should be re- capped to prevent moisture and contaminants from entering the system. Do not assume that the service connection sizes on the unit (at the service valves) are the correct size to run your interconnecting refrigeration pipes. -
Page 15: Wiring Diagram
Wiring Diagram: 2 Fans Unit... - Page 16 Wiring Diagram: Single Fan Unit...
-
Page 17: Start Up And Operation
REMINDER: Do not use the system compressor as a vacuum pump and never operate the compressor Emerson Climate Technologies recommends Triple Evacuation Process while the system is in vacuum. (best practice) to be implemented on all our installations. -
Page 18: Refrigerant Charging & Charge Limit
Refrigerant Charging After ensuring the system is vacuumed properly and all valves are opened, only then start the refrigerant charging process 1. Ensure that there is no power supply to the CDU unit. The Liquid Line solenoid needs to be kept open for the charging process, if available and this may require a temporary power feed to it. - Page 19 Refrigerant Charge Refer to the table below for the approximate Refrigerant holding capacity of Condensing Unit : Refrigerant Charge Model (R404a) kg KHZ506LRL-EX 4.10 KHZ508LRL-EX 4.10 KHZ509LRL-EX 4.10 KHZ511LRL-EX 4.10 KHZ514LRL-EX 4.10 KHZ515LRL-EX 4.10 KHZ518LRL-EX 4.54 KHZ521LRL-EX 4.54...
-
Page 20: Maintenance & Application Tips
Maintenance Condenser Fins • Condenser fins become dirty over time as ambient air is induced to the condenser. Dirty coil surfaces result in high condensing temperatures and poor unit performance. Regular cleaning is recommended with frequency depending on the installation and the surrounding environment. As a general guide, it is advisable to do this at least once every two months. - Page 21 • Don't allow air, moisture, contaminants to enter compressor. • Don't charge refrigerant looking at compressor amperes • Do not bypass LP/HP controls • Reverse Rotation Scroll compressors pump in one direction only Incorrect rotation can be identified by: -low current, noise, balanced suction and discharge pressure Correct by interchanging any two phases Short-term reverse rotation will not damage the compressor Electrical Tips:...
- Page 22 Electrical components. Note: The components listed in this catalogue are not released for use with caustic, poisonous or flammable substances. Emerson Climate Technologies cannot be held responsible for any damage caused by using these substances. Pressure -Temperature Chart Temperature Temperature...
-
Page 23: System Troubleshooting
System Troubleshooting Guide: Symptom Possible Cause Correction • Power disconnected or loose connection • Check voltage at contactor in condensing unit • Blown fuse / breaker tripped • Replace fuses / reset breaker • Thermostat out of calibration – set too high •... - Page 24 • Air or non-condensable gas in syste • Recover refrigerant, evacuate and recharge • Compressor may loss pumping • Replace Suction & • Gauges Replace • If Cooling achieve, Gauges may faulty Discharge pressure • Check for high side restriction in the system •...
-
Page 25: System Start - Up And Operation Check Sheet
System Start-Up and Operational Check Sheet: Client Details Facility/Customer Name : Address : Contact Details : Installer : Installation Date : Condensing Unit Info CDU Model : Serial Number : CDU Location : Indoor Unit Make/Model : System Details System Operation Room/Case ID : COMP Voltage :... -
Page 26: Contact Lists
Pune Emerson Climate Technologies (India) Pvt. Ltd. Plot No. 23, Rajiv Gandhi Infotech Park, Phase - II, Hinjewadi, Pune-411 057 Tel: (91-20) 4200 2000, Fax: (91-20) 4200 2099 Ahmedabad Emerson Climate Technologies (India) Pvt. Ltd. C/o Agility Logistics Pvt. Ltd.,...