Daikin EWHQ100G Installation, Maintenance & Operating Manual Download

Page: 19 / 20

D-EIMWC01206-15EN - 19/20

Legend

Compressor

Discharge shut off valve

Condenser

Liquid line isolating valve

Drier filter

Shut off valve (charge
valve)

Liquid and humidity
indicator

Electronic expansion valve

Evaporator

Suction shut off valve
(optional)

Low-pressure safety valve

High-pressure safety valve

Heat recovery

Liquid receiver

4 Way valve

Refrigerant outlet
connection (to the remote
condenser)

Refrigerant inlet
connection (from the
remote condenser)

Condenser leaving water
connection

Condenser entering water
connection

Evaporator leaving water
connection

Evaporator entering water
connection

Heat recovery leaving
water connection

Heat recovery entering
water connection

Discharge temperature
control

High pressure transducer

F13

High-pressure switch

Temperature sensor

Low pressure transducer

CLWT

Condenser leaving water
temperature sensor

CEWT

Condenser entering water
temperature sensor

ELWT

Evaporator leaving water
temperature sensor

EEWT

Evaporator entering water
temperature sensor

Summary of Contents for EWHQ100G

Page 1: ...n manual EWWQ090G EWWQ720L Water cooled scroll chillers EWLQ090G EWLQ720L Condenserless EWHQ100G EWHQ400G Heat pump scroll chillers Refrigerant R410A D EIMWC01206 15EN REV 00 Date Supersedes EWLQ G L Condenserless water cooled chillers ...

Page 2: ... unit can be seasonally inverted General Information All the units are delivered together withwiring diagrams certifieddrawings nameplateandDoC DeclarationofConformity Thesedocumentslistallthe technicaldataoftheunitacquiredandCONSTITUTEAN INTEGRALANDESSENTIALPARTOFTHISMANUAL In case of any discrepancy between this manual and the equipment s documents please refer to on board documents In case of a...

Page 3: ...it Identification of the labels 1 Manufacturer s logo 5 Hazardous voltage warning 2 Type of coolant in the circuit s 6 Non flammable gas symbol 3 Electrical hazard symbol 7 Identification data of the unit 4 Tighten electrical cables warning 8 Instructions for handling lifting With the exception of the unit s name plate which is always in the same position the other plates may be in different posit...

Page 4: ...gency Service wait without leaving the injured person alone until the rescue operators come Give all necessary information to the rescue operators Positioning and assembly The unit must be installed on a sturdy and perfectly level foundation For the earthing a resistant base is cement must be created with a width greater than that of the unit This base must be able to support its weight Anti vibra...

Page 5: ...the unit very slowly keeping it perfectly level Avoid bumping and or shaking the unit during the handling and loading unloading operations from the transportation vehicle push or pull the unit only using the base frame Secure the unit inside the truck to prevent it from moving and causing damages Do not allow any part of the unit to fall during loading unloading All units have lifting points marke...

Page 6: ...ure 4 Handling of the double circuit unit Alternative handling method 1 Remove before installation 2 Use lifting hooks with closing device exclusively The hooks must be safely fastened before performing the handling 3 Fork lift ...

Page 7: ...oes not exceed the design pressure of the water side heat exchangers and install a safety valve on the pipe of the water 12 Install a suitable expansion CAUTION To avoid damages install a filter that can be inspected on the water pipes at the entry to the heat exchangers Insulation of the pipes The complete water circuit including all the pipes must be insulated to avoid condensate from forming an...

Page 8: ...ponsible for any damages or malfunctions of the equipment The quality of the water must comply with the specifications listed in the following table Circulating water Water supply Possible problems Elements to be checked pH at 25 C 6 8 8 0 6 8 8 0 Corrosion limescale Electrical conductivity mS m at 25 C 40 30 Corrosion limescale Chlorine ion mg Cl l 50 50 Corrosion Sulfate ion mg SO4 l 50 50 Corro...

Page 9: ... installed must therefore ensure that the overall content of water allows the unit t operate continuously and therefore greater environmental comfort The minimum water content per unit must be calculated with a certain approximation using the following formula For units with 2 compressors M litres 12 153 x DT C 22 168 x P kW For units with 4 compressors M litres 0 32 x DT C 1 36 x P kW Where M min...

Page 10: ...f other components of the system or other appliances in general 2 Plan an electrical circuit for the connection of the unit This circuit must be protected with the necessary safety devices that is a main switch an SB fuse on each phase and a leakage towards earth detector The recommended fuses are listed in the wiring diagram provided with the unit Turn off the switch of the main insulator before ...

Page 11: ...equence and operation of all the safety devices The user must keep a log system booklet of the operating data of the unit installed and of all the periodic maintenance and service activities If the operator notes abnormal or unusual operating conditions he is advised to consult the authorized technical service of the manufacturer Periodic maintenance The periodic maintenance activities minimum are...

Page 12: ...rranty All the units are tested at the factory and guaranteed for a specific period of time These units have been developed and constructed according to high quality standards ensuring years of failure free operation However it is important to ensure proper and periodical maintenance in accordance with all the procedures listed in this manual and with good practice of machines maintenance We stron...

Page 13: ...nstalled in an aggressive environment perform this activity monthly The following are considered aggressive environments place with high concentration of industrial exhaust gas in the air Place close to the sea salt air Place close to a desert where there is a risk of sand storms Other aggressive environments 5 Safety valve Check that the cap and seal have not been tampered with Check that the saf...

Page 14: ... collection centres This manual is a technical aid and does not represent a binding offer We cannot guarantee explicitly or implicitly the completeness accuracy or reliability of its contents All data and specifications contained herein may be modified without notice The data communicated at the time of the order shall hold firm The manufacturer shall assume no liability whatsoever for any direct ...

Page 15: ...Frequency Drive condenser pump VFD 3 Way Valve VFD 3 Way Valve VFD Fans D L Limit of charge DI Digital Inputs DO Digital Outputs DPS Digital Setpoint EF External Fault EFS Evaporator Flow Switch GA General Alarm KPC 1 Pump 1 condenser water KPC 2 Pump 2 condenser water KPE 1 Pump 1 evaporator water S O Exclusion of the set point 1 HP Version only Cooling Heating Remote 2 VFD 2 ON OFF Moto Evaporat...

Page 16: ...re A Typical single refrigerant circuit The input and output of the water of the condenser and the evaporator are approximate Consult the dimensional drawings of the unit for the exact hydraulic connections ...

Page 17: ... Figure B Typical single refrigerant circuit of the moto evaporating version The input and output of the water of the evaporator are approximate Consult the dimensional drawings of the unit for the exact hydraulic connections ...

Page 18: ... Figure C Typical single refrigerant circuit for Heat Pump The input and output of the water of the condenser and the evaporator are approximate Consult the dimensional drawings of the unit for the exact hydraulic connections ...

Page 19: ...er 17 Refrigerant inlet connection from the remote condenser 18 Condenser leaving water connection 19 Condenser entering water connection 20 Evaporator leaving water connection 21 Evaporator entering water connection 22 Heat recovery leaving water connection 23 Heat recovery entering water connection DT Discharge temperature control CP High pressure transducer F13 High pressure switch ST Temperatu...

Page 20: ...acy reliability or fitness for particular purpose of its content and the products and services presented therein Specifications are subject to change without prior notice Daikin Europe N V 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 All content is copyrighted by Daikin Europe N...

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