Aircold WLA Compact 230/1/50 Translation Of Original Instructions

Air cooled water chiller

Hide thumbs

Table Of Contents

Table of Contents

Quick Links

Download this manual

www.aircold.dk

aircold@aircold.dk

tlf.: +45 98190166

WLA Compact

Translation of original instructions

Air cooled water chiller

230/1/50, 230/1/60

400/3/50, 460/3/60

LIQUID CHILLER

Index i04

Revision 10.2021

Table of Contents

Need help?

Do you have a question about the WLA Compact 230/1/50 and is the answer not in the manual?

Questions and answers

Summary of Contents for Aircold WLA Compact 230/1/50

Page 1 LIQUID CHILLER aircold@aircold.dk tlf.: +45 98190166 WLA Compact Translation of original instructions Air cooled water chiller 230/1/50, 230/1/60 Index i04 400/3/50, 460/3/60 Revision 10.2021...
Page 2 WL A Co mpACT - T RA N SL AT IoN o F o R I GI NA L I NST R U CT Io N S Co S moTEC H I SToRY Cosmotec was founded in 1989. In 2001, Cosmotec joined Stulz GmbH, which has its headquarters in Hamburg.
Page 3 W LA Co m pACT - T RA NS LAT I o N o F oR I G I N AL I N ST R U CT Io NS WLA Compact – High quality liq- uid chiller made in Italy Dear Customer, Thank you for purchasing a Cosmotec chiller.
Page 4: Table Of Contents
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S Summary 1.Introduction ..............................6 1.1.Introduction ........................... 6; 1.2.Warranty ............................6; 1.3.Annex ..............................6 2.Safety .................................7 2.1.Symbols used in the manual ..................7;...
Page 5 WL A Co mpACT - TRA N SLAT I o N o F o R IG I NAL I N ST R U CT I o N S 9.2.Routine maintenance ......................45; 9.3.Extraordinary maintenance ..................48 10.Troubleshooting ..........................49; 11.Decommissioning and disposal of the unit ............... 50; 12.Options ................................52 12.1.Multi-pole connector .......................53;...
Page 6: Introduction
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S 1.
Page 7: Safety
WL A CompACT - T RA N SLAT I o N o F o R I GI N AL I NST R U CT I o NS 2. Safety 2.1. Symbols used in the manual DANGER Risk of death or injury to the operator WARNING Risk of damage to the unit INFoRmATIoN...
Page 8 WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S Direction of rotation of motors.
Page 9: Safety Instructions
WL A CompACT - TRAN SL AT I o N oF o R IG I NA L I N ST R U CTIo N S 2.3. Safety instructions INFoRmATIoN This cooling unit contains fluorinated greenhouse gas covered by the Kyoto protocol. In these Cosmotec chillers the refrigerant R134A is used.
Page 10: Safety And Environmental Requirement
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S •...
Page 11: Residual Risk
WLA Com pACT - TRAN SL ATI oN o F o R I GI NA L IN ST R U CT I o NS 3. Residual risk During transport and installation Area Danger Risk preventative measures Under Defective lifting system of the Contusions, Keep away from the danger area while handling the the unit...
Page 12: Refrigerant Safety Data
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S Area Danger Risk...
Page 13 W L A Co mpACT - TRAN SLAT I o N o F o R I GI NA L IN ST R U CT I o N S Storage and handling dispositions applied for the following products: under pressure gas and liquefied gas. Provide adequate ventilation and extraction near equipment.
Page 14 WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S Acute toxicity Low harmful for fishes.
Page 15: Moving And Storage
4. moving and storage 4.1. Receipt To ensure product quality and reliability, all the chillers are checked and tested before delivery. The standard packaging consists of: • Bubble wrap around the sides and roof of the unit; • Some plastic air bag strips around the unit. •...
Page 16: Handling
WL A Co mpACT - T RA N S L AT I oN o F o R I GI NA L IN ST R U CT Io N S W L A Co mpACT - T RA N S L AT I oN o F o R I GI NA L IN ST R U CT Io N S 4.2.
Page 17: Description
WLA Com pACT - TRAN SL ATI oN o F o R I GI NA L IN ST R U CT I o NS 5. Description 1°digit Liquid Chiller 2°digit 3°digit 5.1. Coding Cooling Capacity 4°digit The type code represents the variant of 1,4 kW 3,2 kW your chiller unit and can be found on the...
Page 18: Intended And Unintended Use
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S 5.2.
Page 19: Components Of The Refrigerant Circuit
W LA Co mpACT - T RA N SLAT I o N oF o R I G IN AL I NST R U CT I o NS accessed by removing the front panel. The condenser cooling air is suctioned from the front side and discharged on the rear by means of the specific grid in the closing panels.
Page 20: Safety Components Of The Refrigerant Circuit
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S 5.4.5 Expansion valve It’s mechanical type, based on pressure and temperature in base exiting from the evaporator (compressor suction), adapts the refrigerant capacity to the evaporator.
Page 21: Air Circuit
WLA Com pACT - T RA N SLATI o N o F o R IG I NAL I NST R U CT I o NS 5.8. Air circuit The air circuit is composed by the condenser, the fan and the air filter. 5.8.1 Fan The units have an axial fan, aspirant, with black metallic blades.
Page 22 WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S 5.9.3 phase cut module to adjust the fan speed.
Page 23 WL A CompACT - TRAN SL ATI oN o F oR IG I NAL I N ST R U CT I o NS 5.10. Hydro-cooling circuits 5.10.1 Legend Nomenc. Symbol meaning Nomenc. Symbol meaning Refrigerant line Probe Direction flow Check of fan speed Air filter Water pump Condenser...
Page 24 WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S Complete hydro-cooling circuit diagram Section_4 EN/10.2021/i04 ...
Page 26: Technical Data
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S 6.
Page 27: Features Of Primary Fluid
WLA Co mpACT - TRAN SL AT I o N o F oR I GI NA L I N ST R U CTI o NS 6.2. Features of primary fluid In this unit its possible to use tap water which respects the values reported in the table below. We recommend the use of premixed fluid COSMOTEC No frost N25 / N39 or COSMOTEC No frost L38.
Page 28: Technical Data
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S 6.3.
Page 29 WL A CompACT - TRAN SL AT I o N o F o R I GI NA L I N ST R U CT I o NS WLA02 WLA03 Cooling capacity 1412 1605 Sound pressure level at 1 m dB(A) 64,1 64,1 (1) (2)
Page 30 WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WLA05 Cooling capacity 2504...
Page 31 W L A Co mpACT - TRA N SLATI oN o F o R I G IN AL I NST R U CTI o NS WLA08 Cooling capacity 3242 Sound pressure level at 1 m dB(A) 61,9 (1) (2) Refrigerant R134a N°...
Page 32 WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WLA10 Cooling capacity 4120...
Page 33 WL A CompACT - TRA N SLATI o N oF o R I GI NA L IN ST R U CTI o NS WLA13 Cooling capacity 5050 Sound pressure level at 1 m dB(A) 71,8 (1) (2) Refrigerant R134a N° of refrigerant circuits Nominal power supply V/-/Hz 230-1-50...
Page 34: Available Pressure
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S 6.4.
Page 35: Pressure Losses
W LA Com pACT - TRAN SL AT I oN oF o R I GI NA L IN ST R U CT I o N S 6.5. pressure losses 6.5.1 Evaporator pressure losses © STULZ S.p.A. – all rights reserved IT/10.2021/i04...
Page 36: Calibration Of Automatic Bypass
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S 6.6.
Page 38 WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WLA 05 - 08 - 10 - 13 EN/10.2021/i04 ...
Page 39: Installation
WL A CompACT - TRA N SLATI o N oF o R I GI NA L IN ST R U CTI o NS 7. Installation To install the air conditioner, comply with the Directives indicated at the beginning of chapter “Safety”.
Page 40: Hydraulic Connections
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S 7.2.
Page 41: Commissioning Preliminary Operations
WLA Co mpACT - TRAN SL AT I o N o F oR I GI NA L I N ST R U CTI o NS WARNING To use the chiller with 460V/3/60Hz three-phase power supply, modify the electrical connection of the winding secondary transformer. See the electrical diagram shown in “MANUAL PART II”...
Page 42 WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S with the provisions supplied by the manufacturer of the antifreeze liquid.
Page 43: Commissioning
WL A Com pACT - T RA N SLAT I o N o F o R I GI N AL I NST R U CT I o N S 8. Commissioning Only support centres authorised by the manufacturer are allowed to commission the unit. For information and quotations, contact the manufacturer technical support service (see “Contacts”...
Page 44: Checks To Be Performed After Start Up
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S 8.2.
Page 45: Maintenance
WLA Com pACT - TRAN SL ATI oN o F o R I GI NA L IN ST R U CT I o NS 9. maintenance 9.1. Warnings For maintenance operations, comply with the general safety rules described in paragraph 2.3. These operations can be carried out only by qualified personnel, as specified in paragraph 1.1.
Page 46 WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S Interval operation Every month...
Page 47 WL A CompACT - TRAN SL AT I o N o F o R I GI NA L I N ST R U CT I o NS compressor. In these situations, the lubricant oil must be fully replaced. Check the presence of leaks It is mandatory to check the presence of refrigerant leaks according to European Standard 517/2014 (F-gas).
Page 48: Extraordinary Maintenance
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S 9.3.
Page 49: Troubleshooting
WL A CompACT - TRA N SLATI o N oF o R I GI NA L IN ST R U CTI o NS 10. Troubleshooting Refer to the general safety rules indicated in paragraph 2.3. All the operations described in this chapter must be performed only by qualified personnel according to that specified in paragraph 1.1.
Page 50: Decommissioning And Disposal Of The Unit
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S problem possible cause Recommended intervention...
Page 51 W LA Com pACT - TRAN SL AT I oN o F o R I GI NA L IN ST R U CTI o NS 1. Disposal of packaging The packaging of the unit must be disposed of ensuring separation of the following materials: •...
Page 52: Options
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S 12.
Page 53: Multi-Pole Connector
WL A CompACT - TRA N SLATI o N oF o R I GI NA L IN ST R U CTI o NS 12.1. multi-pole connector It’s made of 1 male connector installed on the rear part of the chiller and of 1 female connector to be installed on the customer’s utility.
Page 54: Device For Low Ambient Temperature Up To -10°C
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S 12.3.
Page 55: Pre-Heating Resistance
WLA Co mpACT - TRAN SL AT I o N o F oR I GI NA L I N ST R U CTI o NS 12.7. pre-heating resistance Installation of an armoured heating element immersed in the tank. The option requires the installation of the “electrical level” to interrupt the functioning with lack of water.
Page 56: Connection Diagrams
WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S WL A Co mpACT - T RA N S L AT I oN o F o R IG I NAL I N ST R U CT Io N S 13.
Page 57 W L A Co mpACT - T RA N SLAT I o N o F o R IG I NAL I N ST R U CTI o NS Single phase unit size 2 WLA05 / WLA08 / WLA10 /WLA13 General alarm Remote enable Power supply Allarme generale...
Page 58 WL A Co mpACT - T RA N S L AT I oN o F o R I GI NA L IN ST R U CT Io N S W L A Co mpACT - T RA N S L AT I oN o F o R I GI NA L IN ST R U CT Io N S www.aircold.dk aircold@aircold.dk tlf.: +45 98190166...

This manual is also suitable for:

Wla compact 230/1/60 Wla compact 400/3/50 Wla compact 460/3/60