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Related Manuals for Daikin EWYD-4Z B
Summary of Contents for Daikin EWYD-4Z B
- Page 1 Date December 2019 Supersedes D–EIMHP01201-18_03EN Installation, Operation and Maintenance Manual D–EIMHP01201-18_04EN Multipurpose unit with Inverter Driven Single Screw Compressor EWYD~4ZB Refrigerant: R-134a Original instructions...
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Page 2: Table Of Contents
Contents INTRODUCTION ..............................6 Precautions against residual risks......................... 6 General Description .............................. 7 Receiving The Unit ..............................7 OPERATING LIMITS ............................7 Storing Storage ..............................7 Operating limits Air to Water operation ......................... 8 Operating limits Water to Water operation (Recovery Mode) ................9 MECHANICAL INSTALLATION ......................... -
Page 3: List Of Figures Fig. 1- Typical Refrigerant Circuit
Fig. 1- Typical refrigerant circuit Water inlet and outlet are indicative. Please refer to the machine dimensional diagrams for exact water connections. D–EIMHP01201-18_04EN- 3/24... - Page 4 LEGEND EQUIPMENTS & INSTRUMENTS ELECTRONIC EXPANSION VALVES (EXV) SCREW COMPRESSOR VFD EXV SHELL&TUBE HEAT EXCHANGER - COLD WATER 4-WAY VALVE (4WV) EXV SHELL&TUBE HEAT EXCHANGER - HOT TZAH MOTOR THERMISTOR (140°C) WATER HIGH PRESSURE SWITCH (21,5 PZAH bar) EXV ECONOMIZER EXV DEFROST PRESSURE TRANSDUCER SOLENOID VALVES (SV)
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Page 5: Fig. 2 - Description Of Labels Applied To The Electrical Panel
Fig. 2 - Description of labels applied to the electrical panel Single circuit unit Double circuits unit Label Identification 1 – Manufacturer’s logo 5 – Cable tightening warning 2 – Gas type 6 – Non flammable gas symbol 3 – Hazardous Voltage warning 7 –... -
Page 6: Introduction
INTRODUCTION This manual provides information on the standard functions and procedures of all units in the series and is an important supporting document for qualified personnel, but can never replace it. All units are delivered with wiring diagrams, certified drawings, nameplate; and DOC (Declaration Of Conformity); these documents show all technical data for the unit you have bought. -
Page 7: General Description
30. the machinery must be installed in structures protected against atmospheric discharge according to the applicable laws and technical standards 31. do not bend or hit pipes containing pressurised fluids 32. it is not permitted to walk or rest other objects on the machines 33. -
Page 8: Operating Limits Air To Water Operation
Operating limits Air to Water operation Cooling Mode: Evaporator Leaving Water Temperature [°C] Heating Mode: Outside Ambient Temperature [°C] The following options must be included according to the specific operating area: Ref. area 1: standard unit (no options are required to operate in this area) Ref. -
Page 9: Operating Limits Water To Water Operation (Recovery Mode)
• Opt. 142 provides EC motors fans. The performances will differ from the standards. Operating limits Water to Water operation (Recovery Mode) Evaporator Leaving Water Temperature [°C] The following options must be included according to the specific operating area: Ref. area 1: standard unit (no options are required to operate in this area) Ref. -
Page 10: Mechanical Installation
MECHANICAL INSTALLATION Safety The unit must be firmly secured to the soil. It is essential to observe the following instructions: − The unit can only be lifted using the lifting points marked in yellow fixed to its base. − It is forbidden to access the electrical components without having opened the unit main switch and switched off the power supply. -
Page 11: Fig. 3 - Lifting
Fig. 3 – Lifting Unit with 4 lifting points (The drawing shows only the 6 fans version. For the 4 fans version the lifting mode is the same) Unit with 6 lifting points (The drawing shows only the 12 fans version. The lifting mode is the same for the different number of fans) D–EIMHP01201-18_04EN - 11/24... - Page 12 Unit with 8 lifting points D–EIMHP01201-18_04EN - 12/24...
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Page 13: Minimum Space Requirements
Fig. 4 - Unit Levelling For installation on the ground, a strong concrete base, at least 250 mm thickness and wider than the unit must be provided. This base must be able to support the weight of the unit. The unit must be installed above antivibrating mounts (AVM), rubber or spring types. The unit frame must be perfectly levelled above the AVM. -
Page 14: Fig. 5 - Minimum Clearance Requirements For Machine Maintenance
When two or more machines are positioned side by side, a distance of at least 3600 mm between the respective condenser banks is recommended. For further solutions, please consult Daikin technicians. Fig. 5 - Minimum clearance requirements for machine maintenance The minimum distances, reported above, ensure functionality of the unit in most applications. -
Page 15: Fig. 6 - Multiple Chiller Installation
Multiple unit installed side by side in a free field with dominant wind. Considering an installation in areas with a dominant wind from a specific direction (as shown in the Fig.6): • Unit N°1: is performing normally without any ambient over-temperature •... -
Page 16: Noise And Sound Protection
NOTE: Daikin cannot be considered responsible in case of malfunctions generated by hot air recirculation or insufficient airflow as result of improper installation if the above recommendations are ignored. Noise and sound protection The unit is a source of noise mainly due to rotation of compressors and fans. -
Page 17: Evaporator And Condenser Exchangers Anti-Freeze Protection
Evaporator and condenser exchangers anti-freeze protection Evaporator and condenser are supplied with a thermostatically controlled anti-freeze electrical resistance, which provides adequate anti-freeze protection at temperatures as low as –16°C. However, unless the heat exchangers are completely empty and cleaned with anti-freeze solution, additional methods must also be used against freezing. -
Page 18: Electric Connections
Provide an electrical circuit to connect the unit. It must be connected to the copper cables with an adequate section relative to the plate absorption values and according to the current electrical standards. Daikin Applied Europe S.p.A. declines all responsibility for an inadequate electrical connection. The connections to the terminals must be made with copper terminals and cables, otherwise overheating or corrosion may occur at the connection points with the risk of damaging the unit. -
Page 19: Phase Unbalance
Table 1 - Table 1 of EN60204-1 Point 5.2 Section of the copper Minimum cross-section phase conductors of the external copper feeding protection conductor the equipment Sp [mm S [mm S ≤ 16 16 < S ≤ 35 S > 35 3.11.3 Phase unbalance In a three-phase system, the excessive imbalance between the phases is the cause of the engine overheating. - Page 20 Following below instructions is mandatory for cases listed above, but also advised for units installed in standard environments. Table 2 – Standard Routine Maintenance Plan Weekly Monthly Yearly/Seas List of Activities (Note 1) Onal (Note General: Reading of operating data (Note 3) Visual inspection of unit for any damage and/or loosening Verification of thermal insulation integrity Clean and paint where necessary...
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Page 21: Unit Maintenance And Cleaning
Paint where necessary Clean and paint where necessary Analysis of water (6) Check of flow switch operation Electrical: Verification of control sequence Verify contactor wear – Replace if necessary Verify that all electrical terminals are tight – Tighten if necessary Clean inside the electrical control board Visual inspection of components for any signs of overheating Verify operation of compressor and oil heater... -
Page 22: Service And Limited Warranty
• Reset the unit controller through the maintenance menu. This will allow the controller to recalculate the new estimated life of the capacitors. Capacitor Reforming after long shut-off period Electrolytic capacitors may lose part of their original characteristics if they are not powered for more than 1 year. If unit has been shut off for a longer period a “reforming”... -
Page 23: 10 Important Information Regarding The Refrigerant Used
10 IMPORTANT INFORMATION REGARDING THE REFRIGERANT USED This product contains fluorinated greenhouse gases. Do not vent gases into the atmosphere. Refrigerant type: R134a GWP(1) value: 1430 (1)GWP = global warming potential 10.1 Factory And Field Charged Units Instructions The refrigerant system will be charged with fluorinated greenhouse gases, and the factory charge(s) are recordered on the label, shown below, which is adhered inside the electrical panel. - Page 24 The present publication is drawn up by of information only and does not constitute an offer binding upon Daikin Applied Europe S.p.A.. Daikin Applied Europe S.p.A. has compiled the content of this publication to the best of its knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for particular purpose of its content, and the products and services presented therein.