Airwell SWS 4212 HFС 134a [74/82] Technical data

Содержание

• English p.1
• Water cooled water chillers with screw compressors p.1
• Sws swr p.1
• Installation and maintenance manual p.1
• Iom sws n gb p.1
• Technical data p.2
• Start up p.2
• Operation p.2
• English p.2
• Table of contents p.2
• Safety p.2
• Installation p.2
• General description p.2
• Foreword p.2
• Transport lifting and positioning p.2
• Troubleshooting p.3
• Table of contents p.3
• Spare parts p.3
• Maintenance p.3
• Dismantling demolition and scrapping p.3
• Warranty p.4
• Introduction p.4
• Foreword p.4
• English p.4
• Emergency stop normal stop p.4
• An introduction to the manual p.4
• Safety p.5
• Foreword p.5
• Definitions p.5
• Safety p.6
• Precautions against residual risks p.6
• General precautions p.6
• English p.6
• Access to the unit p.6
• Safety p.7
• Tenere su questa linea gancio di sollevamento p.8
• Safety labels p.8
• Safety p.8
• Keep lift hook on this line p.8
• English p.8
• Sortie uscita p.9
• Safety p.9
• Entrée entrata p.9
• Ein inlet p.9
• Aus outlet p.9
• Safety regulations p.10
• Safety p.10
• English p.10
• Safety p.11
• Safety p.12
• English p.12
• Transport lifting and positioning p.13
• Lifting p.13
• Inspection p.13
• Figure a figure b p.13
• Transport lifting and positioning p.14
• Storage p.14
• English p.14
• Anchoring p.14
• Positioning the unit p.15
• Installation p.15
• Spring isolator installation p.15
• Installation p.16
• Flow meter installation p.16
• External hydraulic circuit p.16
• English p.16
• Connection diagram external hydraulic circuit p.16
• Power supply p.17
• Installation p.17
• Hydraulic connection of the condenser p.17
• Hydraulic connection p.17
• Installation p.18
• English p.18
• Electrical connections p.18
• Terminal box p.19
• Page 18 p.19
• Installation p.19
• Y user terminals p.19
• Start up p.20
• Preliminary check p.20
• English p.20
• Start up p.21
• Delivery to the customer p.21
• Checking the operation p.21
• Operation p.22
• Keyboard display terminal unit p.22
• General information p.22
• English p.22
• Operation p.23
• Alarms table p.24
• Menu key p.24
• In this mask the following items are displayed unit serial number and control temperature system 1 status system 2 status unit status p.24
• Functions keys configuration p.24
• English p.24
• Pushing the menu key the main mask is displayed p.24
• Page 23 p.24
• Operation p.24
• Tin entering chilled fluid temperature p.25
• Msk_filters p.25
• The following items are also displayed 1 chiller control digital inputs and outputs status 2 analog outputs driving the fan speed controllers 3 code and release of the chiller control soft ware p.25
• Maintenance p.25
• Tc 2 heat recovery heat exchanger leaving water temp p.25
• M_offset3 p.25
• Tc 1 heat recovery heat exchanger entering water temp p.25
• M_offset2 p.25
• M_offset1 p.25
• Sp 2 system 2 suction pressure transducer p.25
• M_disable p.25
• Sp 1 system 1 suction pressure transducer p.25
• I o input output status p.25
• Sensor use p.25
• Hour_thres p.25
• Rst_hour meters p.25
• Dp 2 sys 2 trasduttore pressione mandata p.25
• Pushing the maintenance key it is possible to ac cess to the following information masks p.25
• Dp 1 system 1 discharge pressure transducer p.25
• Pushing the i o key it is possible to access to all the masks showing the values read by all the sensors installed on the unit p.25
• Pushing the enter the cursor enter in the list of the memorized alarms at this point the arrow keys al low to scroll the masks of all the memorized alarms which show the date time code and the controlled water temperature entering or leaving at the mo ment in which the alarm itself was detected p.25
• Compressors working hours p.25
• Pump working hours p.25
• Alarm history p.25
• Password p.25
• Page 24 p.25
• Tplan installation control sensor in case of chiller network p.25
• Operation p.25
• Tout leaving chilled fluid temperature p.25
• Nota contact itelco clima service department to access to the following masks p.25
• Operation p.26
• English p.26
• Introduction p.27
• General specifications p.27
• General description p.27
• Compressors p.27
• General description p.28
• Every single sws unit has two complete refrigerant circuits one per compressor each refrigerant circuit includes a service valve for refrigerant filling shutoff valves for suction lines on request as well as for the delivery and liquid lines a thermostatic expansion valve with external equalizer a solenoid valve to start stop the compressor a dehydrating cartridge filter a sight glass with humidity indicator a differen tial oil pressure switch the moto evaporating swr units which derive from the sws versions are marked by the absence of condensers are provided with shutoff cocks on the delivery and liquid lines so as to allow the connection of remote condensers p.28
• Evaporator p.28
• English p.28
• Each circuit is also provided with safety devices in accordance with ped 97 23 ec hp pressure switches pressure transducers safety valves provid ing protection in case of fire or in the case of a mal function of compressors p.28
• Condenser p.28
• All units are provided with two condensers one per circuit the heat exchanger is of shell and tube type with square plates preset for opening for inspection cleaning and maintenance purposes p.28
• All units are equipped with a single direct expansion refrigerant water exchanger of shell and tube type with several refrigeration circuits the tube bundle can be removed for any inspections or maintenance p.28
• The heat exchangers are insulated with 19mm thick anti condensate closed cell polyethylene material the insulating material is not uv ray proof p.28
• Sws refrigeration diagram p.28
• Refrigerant circuits p.28
• Page 27 p.28
• Power supply and control system p.29
• Page 28 p.29
• Network isolator contactors compressor fuses p.29
• Master switch p.29
• General description p.29
• Digital outputs for the excitation of control relays and remoto control switches p.29
• Digital inputs such as alarm and control signals p.29
• Chiller control p.29
• The microprocessor will execute the logic that con trols p.29
• Analog inputs such as temperature pressure mea suring signals p.29
• All units are provided with a microprocessor and a chiller control system p.29
• The led and the display of the alarm signals and the operation of the appliance p.29
• A transformer for auxiliaries fuses relay and elec tronic card p.29
• The keyboard and the display of the chiller con trol microcomputer mounted on the door of the control section p.29
• A door stop disconnecting switch is always avail able and is mounted on the door of the appliance ip 54 protection degree the power supply control compartment includes p.29
• The function of the expandable interface card is to monitor the inputs and control the outputs p.29
• The electrical connection of the controls and the start up units for the motor are carried out and tested in the factory p.29
• The compressor s start up logic excitation of the winding and stop potential regulation 3 3 steps p.29
• The chiller control unit consists of an expandable interface card and a controller p.29
• Swr refrigeration diagram p.29
• General description p.30
• English p.30
• Accessories p.30
• Technical data p.31
• Pressure drops p.31
• Evaporator p.31
• Technical data p.32
• English p.32
• Condenser p.32
• Page 31 p.32
• Technical data p.33
• Sws 1002 2202 r407c p.33
• Page 32 p.33
• Technical data p.34
• Sws 2602 4402 r407c p.34
• Page 33 p.34
• English p.34
• Technical data p.35
• Sws 1602 2352 r134a p.35
• Page 34 p.35
• Technical data p.36
• Sws 2502 3202 r134a p.36
• Page 35 p.36
• English p.36
• Technical data p.37
• Sws 3412 4802 r134a p.37
• Page 36 p.37
• Technical data p.38
• Swr 1002 2202 r407c p.38
• Page 37 p.38
• English p.38
• Technical data p.39
• Swr 2602 4402 r407c p.39
• Page 38 p.39
• Technical data p.40
• Swr 1602 2352 r134a p.40
• Page 39 p.40
• English p.40
• Swr 2502 3202 r134a p.41
• Page 40 p.41
• Technical data p.41
• Technical data p.42
• Swr 3412 4802 r134a p.42
• Page 41 p.42
• English p.42
• Technical data p.43
• Page 42 p.43
• Electrical data p.43
• Technical data p.44
• Page 43 p.44
• English p.44
• Technical data p.45
• Page 44 p.45
• Position of antivibration mounting springs and weight distribution on supports p.46
• Page 45 p.46
• English p.46
• Weight distribution sws 1602 1902 r134a std p.46
• Weight distribution sws 1002 1902 r407c std p.46
• Technical data p.46
• Weight distribution sws 2202 4402 r407c std p.47
• Weight distribution sws 2202 3012 r134a std p.47
• Technical data p.47
• Page 46 p.47
• Weight distribution sws 3202 4802 r134a std p.48
• Technical data p.48
• Page 47 p.48
• English p.48
• Weight distribution sws 1602 1902 r134a ln p.49
• Weight distribution sws 1002 1902 r407c ln p.49
• Technical data p.49
• Page 48 p.49
• English p.50
• Weight distribution sws 2202 4402 r407c ln p.50
• Weight distribution sws 2202 3012 r134a ln p.50
• Technical data p.50
• Page 49 p.50
• Weight distribution sws 3202 4802 r134a ln p.51
• Technical data p.51
• Page 50 p.51
• Weight distribution sws 1602 1902 r134a eln p.52
• Weight distribution sws 1002 1902 r407c eln p.52
• Technical data p.52
• Page 51 p.52
• English p.52
• Weight distribution sws 2202 4402 r407c eln p.53
• Weight distribution sws 2202 3012 r134a eln p.53
• Technical data p.53
• Page 52 p.53
• Weight distribution sws 3202 4802 r134a eln p.54
• Technical data p.54
• Page 53 p.54
• English p.54
• Weight distribution swr 1602 1902 r134a std p.55
• Weight distribution swr 1002 1902 r407c std p.55
• Technical data p.55
• Page 54 p.55
• Weight distribution swr 2202 4402 r407c std p.56
• Weight distribution swr 2202 3012 r134a std p.56
• Technical data p.56
• Page 55 p.56
• English p.56
• Weight distribution swr 3202 4802 r134a std p.57
• Technical data p.57
• Page 56 p.57
• Weight distribution swr 1602 1902 r134a ln p.58
• Weight distribution swr 1002 1902 r407c ln p.58
• Technical data p.58
• Page 57 p.58
• English p.58
• Weight distribution swr 2202 4402 r407c ln p.59
• Weight distribution swr 2202 3012 r134a ln p.59
• Technical data p.59
• Page 58 p.59
• Weight distribution swr 3202 4802 r134a ln p.60
• Technical data p.60
• Page 59 p.60
• English p.60
• Weight distribution swr 1002 1902 r407c eln p.61
• Technical data p.61
• Page 60 p.61
• Weight distribution swr 1602 1902 r134a eln p.61
• Weight distribution swr 2202 4402 r407c eln p.62
• Weight distribution swr 2202 3012 r134a eln p.62
• Technical data p.62
• Page 61 p.62
• English p.62
• Weight distribution swr 3202 4802 r134a eln p.63
• Technical data p.63
• Page 62 p.63
• Technical data p.64
• Overall dimensions sws 1002 1902 std r407c and sws 1602 1902 std r134a p.64
• Overall dimensions and maintenance space p.64
• English p.64
• Page 64 p.65
• Overall dimensions swr 1002 1902 std r407c and swr 1602 1902 std r134a p.65
• Legend only for shipping 1 evaporator water inlet 2 evaporator water outlet 3 condenser water inlet 4 condenser water outlet 5 power inlet p.65
• Technical data p.65
• Technical data p.66
• Page 65 p.66
• Overall dimensions sws 2202 4402 std r407c and sws 2212 3012 std r134a p.66
• English p.66
• Egend only for shipping 1 evaporator water inlet 2 evaporator water outlet 3 condenser water inlet 4 condenser water outlet 5 power inlet p.66
• Technical data p.67
• Page 66 p.67
• Overall dimensions swr 2202 4402 std r407c p.67
• Egend only for shipping 1 evaporator water inlet 2 evaporator water outlet 3 condenser water inlet 4 condenser water outlet 5 power inlet p.67
• Technical data p.68
• Page 67 p.68
• Overall dimensions sws 3202 4802 std r134a p.68
• English p.68
• Egend only for shipping 1 evaporator water inlet 2 evaporator water outlet 3 condenser water inlet 4 condenser water outlet 5 power inlet p.68
• Overall dimensions sws 1002 1902 ln eln r407c and sws 1602 1902 ln eln r134a swr 1002 1902 ln eln ad r407c and swr 1602 1902 ln eln r134a p.69
• Technical data p.69
• Page 68 p.69
• Technical data p.70
• Page 69 p.70
• Overall dimensions sws 2202 4402 ln eln r407c and sws 2202 3012 ln eln r134a swr 2202 4402 ln eln r407c and swr 2202 3012 ln eln r134a p.70
• English p.70
• Technical data p.71
• Page 70 p.71
• Overall dimensions sws 3202 4802 ln eln r134a swr 3202 4802 ln eln r134a p.71
• Legend only for shipping refer to the standard drawing for the dimensions of connections 5 power inlet p.71
• Technical data p.72
• English p.72
• Technical data p.73
• Manuale sws swr en2 qxp 19 11 06 11 21 pagina 73 p.74
• Maintenance space sws 3202 4802 r134a swr 3202 4802 r134a p.74
• English p.74
• Technical data p.74
• Page 73 p.74
• Planned maintenance p.75
• Maintenance p.75
• General requirements p.75
• Refrigerant charge p.76
• Maintenance p.76
• English p.76
• Condenser p.76
• Compressors p.76
• Dehydrating filter p.77
• Thermostatic expansion valve p.77
• Sight glass p.77
• Maintenance p.77
• Evaporator p.77
• English p.78
• Troubleshooting p.78
• Troubleshooting p.79
• Wiring diagrams p.80
• Spare parts p.80
• Spare part list p.80
• Oil for compressors p.80
• English p.80
• Generalities p.81
• Dismantling demolition and scrapping p.81
• Itelco industry p.82