![Airwell SWS 1602 HFС 407C [3/48] Controls](/img/pdf.png)
Airwell SWS 1602 HFС 407C [3/48] Controls
![Airwell SWS 1602 HFС 407C [3/48] Controls](/views2/1409257/page3/bg3.png)
Page 3
Design Features (cont'd)
Controls
The SWS units are supplied with a microprocessor based electronic
control and management system ensuring the following functions :
➜ Management of liquid / pump down solenoid valves :
- Compressor starts when solenoid valve is energized.
- Pump down takes place when solenoid valve is de-energized.
➜ Management of compressor operation :
- Start-up / Stop.
- Management of delays at start-up.
- Rotation of compressors.
➜ Chilled/hot water temperature control on evaporator
water return or leaving :
- Control on return water : proportional type (RWT P) or
proportional integral type (RWT P+I) with integration time to be
parametrized.
- Control on leaving water (LWT).
Standard control : RWT P.
➜ Evaporator anti-freeze protection.
➜ Management of high and low pressure alarms.
➜ Remote control management :
- Unit start-up and stop.
- Alarm signalling.
➜ Programming of 4 hour periods with 4 different set
points.
➜ Alarm records.
➜ Counting of compressor and pump (if present) operation
hours.
➜ Double set points.
The electronic controller provides for a clear signalling, on the LCD,
of any unit control parameters, such as :
- Display of the circuit 1 and circuit 2 discharge pressure.
- Display of the circuit 1 and circuit 2 suction pressure.
- Display of the return water temperature.
- Display of the leaving water temperature.
- Display of the various alarms and operation states :
Inlet water temperature.
Outlet water temperature.
High / low pressure.
Evaporator anti-freeze.
Lack of water.
Phase sequence monitoring.
Compressor thermal protection.
Remote unit OFF.
- Remote ON/OFF contact.
- Contacts for the forced unloading of compressors or for the
second set point.
- Contacts signalling that the compressors are running.
- Contact signalling that the unit is switched on.
- Contact signalling that the unit is alarmed.
Factory-installed options
➜ Condensers for well water.
➜ Suction valve.
➜ Liquid injection circuit.
➜ Electronic expansion valves.
➜ LN (Low Noise) kit (supplied loose or fitted).
➜ Compressor oil level sensor kit.
Field-installed accessories
➜ Gauges.
➜ Spring anti-vibration mounts.
➜ Remote keyboard.
➜ RS485 ModBus serial interface (BMS).
➜ Chiller NET-Control :
Master/slaves communication capability to monitor, from a
"master" unit, up to 4 units on a common hydraulic circuit.
➜ Chiller Black Box :
Electronic board memorizing machine information intended for
maintenance works :
- Last memorized alarms (date and type).
- Entering and leaving water temperature report.
- Suction and discharge pressure report.
➜ GSM modem :
For information communication and transfer by SMS (SIM card
not supplied).
Содержание
- Control 2
- Control and safety devices 2
- Design features 2
- Electrical board 2
- Evaporator condensers 2
- General 2
- Page 2 2
- Reference standards 2
- Refrigerant circuits 2
- Safety 2
- Semi hermetic screw compressors 2
- Structure 2
- Controls 3
- Design features cont d 3
- Factory installed options 3
- Field installed accessories 3
- Page 3 3
- Page 4 4
- Refrigerant flow diagrams 4
- Swr units 4
- Sws units 4
- Operating limits 5
- Page 5 5
- Units with hfc 134a 5
- Units with hfc 407c 5
- Correction factors 6
- Ethylene glycol solution correction factors 6
- Fouling factors 6
- Low temperature operation correction factors 6
- Page 6 6
- Pressure drop correction factors for low temperature operation 6
- Page 7 7
- Physical data sws 1002 to 2202 hfc 407c 7
- Page 8 8
- Physical data sws 2602 to 4402 hfc 407c 8
- Page 9 9
- Physical data swr 1002 to 2202 hfc 407c 9
- Page 10 10
- Physical data swr 2602 to 4402 hfc 407c 10
- Page 11 11
- Physical data sws 1602 to 2802 hfc 134a 11
- Page 12 12
- Physical data sws 3012 to 4802 hfc 134a 12
- Page 13 13
- Physical data swr 1602 to 2802 hfc 134a 13
- Page 14 14
- Physical data swr 3012 to 4802 hfc 134a 14
- Electrical data 15
- Page 15 15
- Sws swr hfc 134a 15
- Sws swr hfc 407c 15
- Page 16 16
- Sound data 16
- Sws swr std hfc 134a 16
- Sws swr std hfc 407c 16
- Page 17 17
- Sound data cont d 17
- Sws swr ln hfc 134a 17
- Sws swr ln hfc 407c 17
- Page 18 18
- Sound data cont d 18
- Sws swr eln hfc 134a 18
- Sws swr eln hfc 407c 18
- Cooling capacities sws 1002 to 2202 hfc 407c 19
- Page 19 19
- Cooling capacities sws 1002 to 2202 hfc 407c cont d 20
- Page 20 20
- Cooling capacities sws 2602 to 4402 hfc 407c 21
- Page 21 21
- Cooling capacities sws 2602 to 4402 hfc 407c cont d 22
- Page 22 22
- Cooling capacities swr 1002 to 2202 hfc 407c 23
- Page 23 23
- Cooling capacities swr 1002 to 2202 hfc 407c cont d 24
- Page 24 24
- Cooling capacities swr 2602 to 4402 hfc 407c 25
- Page 25 25
- Cooling capacities swr 2602 to 4402 hfc 407c cont d 26
- Page 26 26
- 30 25 30 27 32 30 35 33 38 well water 4 pass tower water 2 pass tower water 2 pass tower water 2 pass tower water 2 pass 27
- Cap kw 27
- Cooling 27
- Cooling capacities sws 1602 to 2802 hfc 134a 27
- Heat rej kw 27
- Input kw 27
- Lwt condenser c 27
- Lwt evap c 27
- Lwt leaving water temperature 27
- Models 27
- Page 27 27
- 40 38 43 40 45 42 47 45 50 tower water 2 pass tower water 2 pass tower water 2 pass tower water 2 pass tower water 2 pass 28
- Cap kw 28
- Cooling 28
- Cooling capacities sws 1602 to 2802 hfc 134a cont d 28
- Heat rej kw 28
- Input kw 28
- Lwt condenser c 28
- Lwt evap c 28
- Lwt leaving water temperature 28
- Models 28
- Page 28 28
- Cooling capacities sws 3012 to 4802 hfc 134a 29
- Page 29 29
- Cooling capacities sws 3012 to 4802 hfc 134a cont d 30
- Page 30 30
- 35 40 45 50 55 31
- Cap kw 31
- Condensing temperature c 31
- Cooling 31
- Cooling capacities swr 1602 to 2802 hfc 134a 31
- Heat rej kw 31
- Input kw 31
- Lwt evap c 31
- Lwt leaving water temperature 31
- Models 31
- Page 31 31
- Cooling capacities swr 3012 to 4802 hfc 134a 32
- Page 32 32
- Evaporator hfc 407c 33
- Flow rate l s 33
- Page 33 33
- Pressure drop kpa 33
- Water pressure drops 33
- 30 40 50 60 70 80 90100 34
- 6 7 8 9 10 10 34
- 90 100 34
- Evaporator hfc 134a 34
- Flow rate l s 34
- Page 34 34
- Pressure drop kpa 34
- Water pressure drops continued 34
- Condensers hfc 407c 35
- Flow rate l s 35
- Page 35 35
- Pressure drop kpa 35
- Water pressure drops continued 35
- 30 40 50 60 70 80 90100 36
- 6 7 8 9 10 10 36
- 90 100 36
- Condensers hfc 134a 36
- Flow rate l s 36
- Page 36 36
- Pressure drop kpa 36
- Water pressure drops continued 36
- Dimensions in mm 37
- Frame sizes 37
- Page 37 37
- Sws std frame 1 37
- Sws swr hfc 134a std ln eln versions 37
- Sws swr hfc 407c std ln eln versions 37
- Dimensions in mm cont d 38
- Page 38 38
- Swr std frame 1 38
- Dimensions in mm cont d 39
- Page 39 39
- Swr std frame 2 39
- Sws std frame 2 39
- Dimensions in mm cont d 40
- Page 40 40
- Swr std frame 3 40
- Sws std frame 3 40
- Dimensions in mm cont d 41
- Page 41 41
- Swr std frame 4 41
- Sws std frame 4 41
- Dimensions in mm cont d 42
- Page 42 42
- Sws swr ln eln frame 1 42
- Dimensions in mm cont d 43
- Page 43 43
- Sws swr ln eln frame 2 43
- Dimensions in mm cont d 44
- Page 44 44
- Sws swr ln eln frame 3 44
- Sws swr ln eln frame 4 44
- Page 45 45
- Space requirements 45
- Sws swr frame 1 45
- Page 46 46
- Space requirements cont d 46
- Sws swr frame 2 46
- Page 47 47
- Space requirements cont d 47
- Sws swr frame 3 and 4 47
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