All unit modifications will invalidate the warranty and you to indentify all the unit features. the manufacturer responsibility. The registration label shows the information required by the regulations, in particular: WCH-I 250-550 M0CL40E18-00...
Page 5
It identifies uniquely each unit. It allows to identify the specific spare parts for the unit. Assistance request Record the characteristic data on the label and return them to the table so that they are easily available in case of need. M0CL40E18-00 WCH-I 250-550...
Align the barycenter to the lifting point Gradually bring the lifting belts under tension, making sure they are positioned correctly. Before starting the movement, make sure that the unit is in stable equilibrium. Inverter weight magnitudes 250 / 500 Weight kg WCH-I 250-550 M0CL40E18-00...
Page 7
Units are designed to be installed: guarantee the good unit operating. · inside of Avoid therefore: · In a fixed position ostacoli al flusso dell’aria · Flat difficoltà di ricambio The unit must be positioned flat M0CL40E18-00 WCH-I 250-550...
Page 10
install an anti-vibration joint position the exhaust outlet of the external safety valve as shown in the figure. the exhaust outlet must be far from the building's external air inlets. WCH-I 250-550 M0CL40E18-00...
Water filter It must be installed immediately at the entrance of the unit, in an easily accessible position for cleaning. Degree of filtration: 0.87 mm The filter must never be removed, the operation will void the warranty. M0CL40E18-00 WCH-I 250-550...
Maximum particle size to pass (filtration 0.87 limit) through heat exchanger (mm) Total dissolved solids (mg/l) < 1500 Max Ethylene, Propylene glycol QUANTITY OF CONDENSER CONNECTION 400 - 450 - 500 Install the reductions DN 250> DN 200 supplied with the unit M0CL40E18-00 WCH-I 250-550...
Page 14
4 HYDRAULIC CONNECTIO NS Configuration of hydraulic connections EVAPORATOR Water flow-rate Number of passes Water fittings scheme Left (Std) Standard DT = 5 ° C Right (option) High opposed DT <4 ° C opposed DT> 7 ° C WCH-I 250-550 M0CL40E18-00...
Page 15
4 HYDRAULIC CONNECTIO NS Configuration of hydraulic connections CONDENSER Water flow-rate Number of passes Water fittings scheme Left (Std) Standard DT = 5 ° C Right (option) High opposed DT <4 ° C opposed DT> 7 ° C M0CL40E18-00 WCH-I 250-550...
Page 16
It also provides additional protection against the surge, if the temperature of the condensation water is outside the operating limits. WCH-I 250-550 M0CL40E18-00...
Page 17
Isolate the pipes to avoid heat dispersions and formation of condensate. Leave various service points free (wells, vents, etc). Neglecting washing will require numerous interventions to clean the filter and in the worst cases it can lead to damage to exchangers and other components. M0CL40E18-00 WCH-I 250-550...
Refer to the unit’s electrical diagram (the number of the diagram is shown on the serial number label) ! ! The unit includes inverters that generate higher ! ! There is a risk of electric shock harmonics and can increase ground dispersion WCH-I 250-550 M0CL40E18-00...
Page 20
Connect the cables so as not to stress the compressor terminals. Secure the cables to the support bracket. Maximum distance between inverter and compressor: 10mt Compressor terminals lock nut B with a wrench tighten the nut A with another key WCH-I 250-550 M0CL40E18-00...
Maximum operating pressure of the water side of the exchanger: 10 bar. Condenser The condenser is a tube bundle. The heads are removable to allow cleaning and maintenance of the exchanger. Maximum operating pressure of the water side of the exchanger: 10 bar. WCH-I 250-550 M0CL40E18-00...
Page 25
complete and available machine documentation evaporative tower flow working environment temperature IN-OUT temperature difference free circulation of air shut-off valves in and out of the pumps in and out of the chiller non-return valve out of pumps M0CL40E18-00 WCH-I 250-550...
Page 26
7 SETTING Press setting ► Press startup status ► Press Compressor Evaporator and so on. WCH-I 250-550 M0CL40E18-00...
Page 27
7 SETTING ► To choose Status> Digital ► To choose Status> Analog Press Parameter Setting M0CL40E18-00 WCH-I 250-550...
Page 28
7 SETTING ► To choose Alarm > Real time To choose Alarm > History WCH-I 250-550 M0CL40E18-00...
Lubricating oil replacement Year Check by: U = user, S = specialist, C = Clivet trained / authorized technician Freq. 1st year: check to be carried out with a close frequency in the first year of operation M0CL40E18-00 WCH-I 250-550...
(with the same leaving water temperature). measurements made etc. Contact a professional cleaning company or contact Setting aside the CLIVET after-sales service. If foreseen a long period of inactivity: Condenser cleaning turn off the power Check and clean the condenser on an annual basis.
Page 31
Replacing the oil filter If the lubricating oil darkens, becomes dense or black or The oil filter must be replaced once a year or when the has obvious impurities, contact CLIVET for replacement. unit is disassembled for repair. Oil quality analysis LUBRICANT...
Page 32
Replace any rusty wiring terminals. after the unit has been started and is running at full speed These two levels will be the reference for subsequent checks. WCH-I 250-550 M0CL40E18-00...
Water protection for heat recovery Condenser flow Fault in the heat recovery water inlet The host current is too low temperature sensor Current host with high protection 2 Heat recovery water temperature sensor Host high current protection 1 failure M0CL40E18-00 WCH-I 250-550...
If a status other than the normal one is detected, consult the table to identify the cause. Restore normal operation as soon as possible .. Contact the CLIVET after-sales service if error symptoms other than those indicated in the table are detected.
Page 35
3. Oil temperature too low. Adjust oil temperature control valve; check oil heating cycle. 1. Rotating parts come into contact with fixed parts. Stop the unit, remove the compressor. Abnormal compressor noise 2. Damaged bearing. Stop the unit, remove the compressor. M0CL40E18-00 WCH-I 250-550...
Page 36
Engine overheating: insufficient engine cooling, engine supply voltage out of limits, winding insulation is damaged. Vacuum operation - Frost risk If it is necessary to evacuate the refrigerant, keep the water circulating in the exchangers so as to prevent the refrigerant from evaporating from freezing frozen water. WCH-I 250-550 M0CL40E18-00...
Page 37
BT11.1 coolant temperature probe BT46.1 compressor flow temperature probe BTM1.1 engine temperature probe BTOS1.1 oil tank temperature probe SPA1 evaporator differential pressure switch SPA2 condenser differential pressure switch IGV positioning control M0CL40E18-00 WCH-I 250-550...
the cooling circuit to be collected; mixtures with antifreeze in the water circuit, the contents of which are to be collected; M0CL40E18-00 WCH-I 250-550...
When it is not necessary to have voltage on the unit itself. circuits, open the disconnector located on the Electrically isolate the unit (yellow-red isolator). connection line of the unit itself, padlock it and equip it with the appropriate warning sign. WCH-I 250-550 M0CL40E18-00...
Maintenance or repair operations requiring welding must be carried out with the system unloaded. Hydraulic part Faults in pipes, connections or interception devices can cause water leaks or projections with consequent damage to property or short circuits of the unit. M0CL40E18-00 WCH-I 250-550...
Need help?
Do you have a question about the WCH-I 250 and is the answer not in the manual?
Questions and answers