Related Manuals for Daikin EWAT016CZN-A1
Summary of Contents for Daikin EWAT016CZN-A1
- Page 1 Date 04/2021 Supersedes Installation, Maintenance and Operation Manual DEIMHP0140521_00EN Air to water heat pump units with scroll compressors EWYT~CZ / EWAT~CZ...
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Page 3: Table Of Contents
ontents ist of figures 1. INTRODUCTION ................4 Figure 1 – Lifting the MONO unit ............8 1.1. Precautions against residual risks ............4 Figure 2 – Lifting the DUAL unit ............8 1.2. General description ................5 1.3. Information about the refrigerant ............5 Figure 3 –... -
Page 4: Precautions Against Residual Risks
1. introDuCtion 14. Check that the unit has been grounded correctly before starting This appliance is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial use by lay persons. The appliance shall not be accessible to the general public: 15. -
Page 5: General Description
1.2. General description All EWYT~CZ / EWAT~CZ machines are built in accordance with the But pose no risk under the normal usage conditions for airconditioning main European Directives (Machinery Directive, Low Voltage equipment and work environment. Directive, Electromagnetic Compatibility Directive, Pressure Equipment Directive. - Page 6 refrigerants, or flammable or toxic materials shall be stored as Detectors shall be continuously monitored for functioning. In the ■ required by national regulations. case of a detector failure, the emergency sequence should be activated as if refrigerant had been detected. Open (naked) flames shall not be permitted in machinery rooms, ■...
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Page 7: Receipt Of The Unit
■ set of photographs is helpful in recognizing responsibility. The bels fixed to its base; restitution of the machinery is intended as ex-factory Daikin Applied always protect operating personnel with personal protective ■ Europe S.p.A.. -
Page 8: Lifting The Mono Unit
4.2.1. Lifting the MONO unit 4.2.2. Lifting the DUAL unit The machine must be lifted slowly and well leveled. Always use protective devices to prevent damage to the belt and note the position of the unit’s centre of gravity. Adjust the lifting equipment if necessary to ensure that the unit is levelled. -
Page 9: Minimum Space Requirements
Figure 3 – Mountig holes location (bottom view) Before unit commissioning, the flatness must be verified by using a If the unit is installed in a free field, the distances indicated are: laser levelling device or other similar devices. The flatness shall not be A/B/C/D ≥ 500 mm over 5 mm for units within 7 m length. -
Page 10: Additional Installation Site Requirements
Figure 5 – Units installed side by side along their shorter sides, B or D 4.5. Additional installation site requirements Case 1 When installing, take strong winds, typhoons or earthquakes into ■ account, improper installation may result in the unit turning over. Take care that in the event of a water leak, water cannot cause ■... -
Page 11: Noise And Acoustic Protection
glycol mixture in appropriate percentage is added to the wa- When operating the unit in a low outdoor ambient ter circuit. temperature, be sure to follow the instructions described • In case of unit substitution, the entire water system must be below. -
Page 12: Safety
Flow switch Setpoint If dirt penetrates the water circuit, there could be Model [l/min] problems. EWAT/EWYT016CZ(N/P/H)-A1 Therefore, always remember the following when connecting the water circuit: EWAT/EWYT021CZ(N/P/H)-A1 Only use pipes that are clean inside. ■ EWAT/EWYT025CZ(N/P/H)-A1 Keep the end of the pipe facing downward when ■... -
Page 13: Water Treatment
4.9. Water pressure drops for filters In the following figure the water filter pressure drops are illustrated. Water filter pressure drops 1'' 1/4 Legend: a. Shut-off valve b. Water filter c. Threaded connector Water flow [l/s] MONO CIRCUIT DUAL CIRCUIT Figure 9 –... -
Page 14: Operation Limits
OPERATION RANGE COOLING – EWYT-CZ Pump Low lift Model Pump curve Ref.1 EWAT/EWYT016CZP-A1 EWAT/EWYT021CZP-A1 EWAT/EWYT025CZP-A1 EWAT/EWYT032CZP-A1 Ref.2 EWAT/EWYT040CZP-A1 EWAT/EWYT040CZP-A2 EWAT/EWYT050CZP-A2 EWAT/EWYT064CZP-A2 EWAT/EWYT090CZP-A2 ELWT [°C] Pump High lift Figure 13 – Operating limits on EWYTCZ in cooling mode Model Pump curve EWAT/EWYT016CZHA1 OPERATION RANGE HEATING –... -
Page 15: Operating Stability And Minimum Water Content In The System
4.12. Operating stability and minimum water content in To ensure proper operation of the unit when changing the value of setting, the minimum water volume has to be corrected. If this volume the system exceeds the range allowed in the unit, an additional expansion vessel or a buffer tank must be installed in the field piping. -
Page 16: Antifreeze Protection For Bphe And Recovery Exchangers
As 420 l is less than 490 l, the expansion vessel is appropriate for the absorption values and according to the current electrical standards. installation. Daikin Applied Europe S.p.A. declines all responsibility for an inadequate electrical connection. 4.14. Antifreeze protection for BPHE and recovery... -
Page 17: Cable Requirements
The equipotential protection conductor (earth conductor) must have a Do not apply torque, tension or weight to the main switch section according to table 1 of EN 602041 Point 5.2, shown below. terminals. Power line cables must be supported by In any case, the equipotential protection conductor (earth conductor) appropriate systems. -
Page 18: Phase Unbalance
• It is forbidden to access the electrical components without When using residual current operated circuit brakers, be using an insulating platform. Do not access the electrical sure to use a high speed type 300 mA rated residual components if water and/or moisture are present; operating current. -
Page 19: Pressure / Temperature Table
7.2. Routine maintenance refrigerating The following precautions should be taken before system working on the refrigerant circuit: This unit must be maintained by qualified technicians. Before • obtain permit for hot work (if required); beginning any work on the system, the personnel shall assure that all •... -
Page 20: Electrical Installation
These units have been developed and constructed according to high 7.2.2. Electrical Installation quality standards ensuring years of failurefree operation. However, the unit requires maintenance even during the warranty period, All electrical maintenance activities must be followed by from the time of installation and not just from the commissioning qualified personnel. -
Page 21: Table 11 - Routine Maintenance Plan For Critical Application And/Or Highly Aggressive Environment
Monthly Yearly/Seasonal List of Activities (Note 8) Weekly (Note 1) (Note 2) General: Reading of operating data (Note 3) Visual inspection of unit for any damage and/or loosening Verification of thermal insulation integrity Cleaning Paint where necessary Analysis of water (4) Check of flow switch operation Electrical Installation: Verification of control sequence... -
Page 22: Refrigerant Circuit Scheme
7.2.4. Refrigerant circuit scheme Figure 17 – Refrigerant circuit (P&ID) diagram for MONO circuit EWYT~CZ unit REFRIGERANT LINE GROUP (bar) (°C) HIGH PRESSURE GAS 42,9 +10/+120 HIGH PRESSURE LIQ 42,9 10/+65 LOW PRESSURE 30/+60 DEIMHP0140521_00EN EWYT~CZ / EWAT~CZ... -
Page 23: Figure 18 - Refrigerant Circuit (P&Id) Diagram For Mono Circuit Ewat~Cz Unit
Figure 18 – Refrigerant circuit (P&ID) diagram for MONO circuit EWAT~CZ unit REFRIGERANT LINE GROUP (bar) (°C) HIGH PRESSURE GAS 42,9 +10/+120 HIGH PRESSURE LIQ 42,9 10/+65 LOW PRESSURE 30/+60 EWYT~CZ / EWAT~CZ DEIMHP0140521_00EN... -
Page 24: Figure 19 - Refrigerant Circuit (P&Id) Diagram For Dual Circuit Ewyt~Cz Unit
Figure 19 – Refrigerant circuit (P&ID) diagram for DUAL circuit EWYT~CZ unit REFRIGERANT LINE GROUP (bar) (°C) HIGH PRESSURE GAS 42,9 +10/+120 HIGH PRESSURE LIQ 42,9 10/+65 LOW PRESSURE 30/+60 DEIMHP0140521_00EN EWYT~CZ / EWAT~CZ... -
Page 25: Figure 20 - Refrigerant Circuit (P&Id) Diagram For Dual Circuit Ewat~Cz Unit
Figure 20 – Refrigerant circuit (P&ID) diagram for DUAL circuit EWAT~CZ unit Legend REFRIGERANT LINE GROUP (bar) (°C) Item Description HIGH PRESSURE GAS 42,9 +10/+120 Scroll compressors HIGH PRESSURE LIQ 42,9 10/+65 Fourway valve Tube&fins heat exchanger (coil) LOW PRESSURE 30/+60 Biflux filter Mechanical filter... -
Page 26: List Of The Labels Applied To The Unit
Table 13 – Checks before starting up the unit NOTE This list must be completed and sent to the local Daikin Service department at least two weeks before the startup date. ... -
Page 27: Important Information On The Refrigerant Used
10. iMPortant inforMation on tHe refrigerant useD This product contains fluorinated greenhouse gases. Do not vent gases into the atmosphere. Refrigerant type: GWP Value (global warming potential): The refrigerant system is charged with fluorinated greenhouse gases and the refrigerant charge is impressed on the plate. In Europe, the greenhouse gas emissions of the total amount of refrigerant in the system (expressed in equivalent tonnes of CO... - Page 28 otes...
- Page 29 All data and specifications contained therein may be subject to change without notice. Refer to the data communicated at the time of the order. Daikin Applied Europe S.p.A. explicitly rejects any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or interpretation of this publication.
- Page 30 Via Piani di Santa Maria, 72 00072 Ariccia (Roma) Italy Tel: (+39) 06 93 73 11 Fax: (+39) 06 93 74 014 DEIMHP0140720_00EN http://www.daikinapplied.eu 2021.04...