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C2020
INDEX 58
Issue 07.2013
AIR CONDITIONING
I/O CONTROLLER
OPERATING INSTRUCTIONS
Related Manuals for Stulz C2020
Summary of Contents for Stulz C2020
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Page 1
C2020 INDEX 58 Issue 07.2013 AIR CONDITIONING I/O CONTROLLER OPERATING INSTRUCTIONS… -
Page 3: Table Of Contents
2.2. SB7 board layout ……………………….8 2.3. I/O assignment ……………………….9 2.4. Communication ……………………….13 2.5. User interface ……………………….14 2.5.1.EO3 user interface (Stulz accessory ACTUKPD) …………….14 2.5.2.CO3 user interface (Stulz accessory ACTKPDC1010H) …………..14 2.5.3.WIB1000………………………..15 3. Interfaces ……………………………16 3.1. Visualization on E03 User …………………….16 3.2.
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Page 4
4.17. Locked keypad ……………………….65 5. Alarms …………………………..66 6. Supervision by …………………………70 6.1. PEMS Protocol (PE) ……………………..70 6.2. Stulz Protocol ……………………….70 6.3. Modbus Stulz protocol ……………………..71 6.4. Modbus standard protocol …………………….71 6.5. SAIA-BUS Protocol ………………………83 6.6. SNMP Communication ……………………..83 6.7. WEB Monitoring ……………………….88… -
Page 5
7. Software personalization for custom application …………………90 7.1. Custom 1 …………………………90 7.2. Custom 2 …………………………90 7.3. Custom 3 …………………………90 7.4. Custom 4 …………………………90 7.5. Custom 5 …………………………90 7.6. Custom 6 …………………………91 7.7. Custom 7 …………………………91 7.8. Custom 8 …………………………92 7.9. Custom 9 …………………………92 7.10. -
Page 6: Introduction
C2020 can control up to 3 DC evaporator fans, subject to parallel control. This means that fans will be controlled by the same output, while each fan sends a speed indicating feedback signal towards the board (board input).
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Page 7: Technical Data
9 DIG-OUT relays 48 V AC – 3 DIG-OUT relays 230 V AC — 5 A • 1 slot connector for interface boards on SPI bus: Stulz accessory ACTHKEY (hardware key for on-site microprocessor programming and application setup). • 3 serial interfaces with microprocessor: –…
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Page 8: Sb7 Board Layout
2.2. SB7 board layout Connector for slave Connector for user interface board board (RS485) (RS485) and 12V voltage supply Connector for program Jumper for programming Jumper TL2 Jumper TL1 operation PRG loading with IS232 Technical Data Dimensions: 215 x 120 x 40 mm Power consumption: Fuse: 1A time-lag…
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Page 9: I/O Assignment
2.3. I/O assignment AN-IN AN-IN AN-OUT for AN-OUT DIG-OUT 4 ÷ 20 mA DC fans DIG-IN Phase cut for AC fans Connectors layout Top view of flat connectors 19 17 15 13 11 9 10 8 20 18 16 14 12 10 8 Top view of minifit connectors POWER SUPPLY Terminal Name…
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Page 10
Analog input ANALOG INPUT Name Logic ID Signal type Range Terminals Features — description PTC* -35÷90 X29 pin 1 Evaporator Temperature (TE) X29 pin 2 PTC* -35÷90 X43 pin 1 Internal Temperature (TI) X43 pin 2 PTC* -35÷90 X41 pin 1 Condenser Temperature (TC) X41 pin 2 PTC*… -
Page 11
Free contact X36 pin 1 X36 pin 2 Low pressure input DI10 Free contact X34 pin 1 X34 pin 2 Humidity switch Analog output ANALOG OUTPUT Name Logic ID Signal type Range Terminals Features — description ANOUT1 DAC0 0÷10 V X6 pin 1 DC 1 supply : positive X6 pin 2… -
Page 12
EXTERNAL PHASE CUT Name Logic ID Pin (X25) Type Description EXT. PHASE EXT. PHASE Pulse signal output current Signal for external phase cut module Current signal feedback Digital output In the following table the default settings are showed; all the other associations are selectable via software. DIGITAL OUTPUT Name Logic ID… -
Page 13: Communication
COM1: PRG asynchronous serial interface The connector X22 allows the plug-in of an IS232 (connector for program loading) or an IS485 (adapter to allow the connection of C2020 to RS485 serial line) interface board for communication with a Tele-control gateway and other serial devices.
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Page 14: User Interface
There are two serial user interfaces that can be linked to the mother board through USER connector: • EO3 (corresponding to Stulz accessory ACTUKPD) will be used for the final customer. • CO3 (corresponding to Stulz accessory ACTKPDC1010H) will be used for manufacturer and service.
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Page 15: Wib1000
The CO3 user interface layout is shown in the following drawing: 2.5.3. WIB1000 WIB1000, or WIB1485, is a single point Ethernet interface, that is physically soldered on SPI connector. WIB1000 is the option without the serial interface 485, while WIB1485 is the option with serial interface 485. The parameters must be set as follows: –…
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Page 16: Interfaces
Interfaces Two different user interfaces can be connected to the USER connector (EO3 and CO3) and it’s always possible to change the user interface also when the board is powered. The user is auto detected by the software during the connection. 3.1.
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Page 17: Menu On E03 User
Locked mode If the user interface is locked, when the customer presses a key, the string “LOC” will be displayed for 5 seconds. See the chapter 4.17 Locked keypad for more information. Alarm mode If an alarm occurs, the alarm code will be displayed alternating with the normal mode visualization and LED H9 (red) will be switched on.
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Page 18: Visualization On C03 User (Actkpdc1010H)
In the first screen the following data are displayed: The manufacturer’s name ( “STULZ”) 2. The type of controller (“CONTROLLER C2020”) 3. The version of the software (standard or “client’s name”) 4. The client’s version (standard or name of the client)
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Page 19
— PfX: Power consumption of fan X (W). If the current absorbed is lower than Pf3:XX.XW 400mA, it’s shown 0 W State of the system ** STULZ ** k) (if enabled Danfoss compressor) CONTROLLER C2020 — Information screen, equal to the screen displayed at start up STUTL2XX.YY… -
Page 20: Menu On C03 User
Possible states of the system: • SYSTEM OFF: the system has been switched off by the ON-OFF key. Components of the unit are not working, alarms are disabled, the unit is still supplied and the controller is working. • SYSTEM ON: the system has been switched on by the ON-OFF key; unit is working according to the set logic. •…
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Page 21
MENU USER SETUP MANUFACTURER SETUP I/O SETUP COUNTER MENU ALARM MENU SYSTEM MANUAL HD KEY RESET DATA MAINTENANCE CONTROL PROGRAMMING BOARD OTHER CALIBRATION TEST OUTPUT MAINTENANCE FUNCTIONS The menu are divided in two levels and inside them you can move with UP/DOWN ARROW keys. The menu of the first level are: •… -
Page 22: Parameter Change And Setting A String Parameter
Press the SET key to enter into every single setup menu of the first or the second level to change some parameters and to store a parameter changed; but if you press the ESC key, you will come back to the previous menu without storing anything.
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Page 23: Manufacturer Setup
S13. Alarm limit max temperature Set point for the max temperature alarm -999/999°C °C/F S14. Hysteresis of max temp alarm Hysteresis of max temperature alarm 0/30°C °C/F S15. Alarm limit low humidity Set point for the low humidity alarm 0/100% S16.
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Page 24
Remote assistance address Note: after any M08. 1/255 address change the controller must be restarted To choose the supervision protocol: 0=PEMS; 1=STULZ; 2=MODBUS STULZ; M09. Serial Protocol 3=SAIA-BUS; 4=MODBUS STANDARD Note: after any change the controller must be restarted Selection of the serial port baud rate: 0=9600 Select serial speed 0=9.6;… -
Page 25
Differ temp value bad Difference value between TI and TE to get bad M29. 0/100 °C working alarm working alarm Delay time before bad Waiting time before the bad working alarm is M30. 0/255 working alarm switched on Freecooling Enable + Freecooling Options Freecooling enable/ No/Temp/ M31. -
Page 26
Compressor management with freecooling M57. CP Start with freecooling 0/100% UNIT 1 – Start Compressor management with freecooling M58. CP Stop with freecooling 0/100% UNIT 1 – Stop Compressor unit 2 offset Compressor management UNIT 2 Offset for M59. 0/100% value Start/Stop Min switch on time… -
Page 27
Evaporator fan Configuration of evaporator fans: which fans M84. configuration are present Min Speed for M85. Speed for begin to control tachometric signal 0/100 tachometric signal Delay time for start evap M86. Delay time of start evaporator fan 0/999 Delay time for stop evap M87. -
Page 28
M111. Max condenser fan speed Max condenser fan speed to reduce the noise 0/100% Tc Value For Start Ve Value of tc for start adaptive control (Ve speed M112. 0/100°C °C/F Limitation starts to decrease) Tc Value For Max Ve Value of tc where the adaptive control is at the M113. -
Page 29
Free air fan minimum M140. See chapter 8.23 Custom 23 0/100 speed Free air fan maximum M141. See chapter 8.23 Custom 23 0/100 speed M142. Free air fan start value See chapter 8.23 Custom 23 0/100 Free air fan maximum M143. -
Page 30
0=R407C 1=R22 2=R134A 3=R404A M175. Gas type Gas type 4=R1270 5=R717 6=R290 7=R410A 8=R507A Set point for Max EER M176. Set point for Max EER function -99/99 °C function Min cond temp for Max Minimum condenser temperature for Max EER M177. -
Page 31: I/O Setup
3.4.6. I/O Setup As the I/O SETUP is selected, the password is requested to get access to this parameter list. After typing the correct password, the display will show the following mask. I/O SETUP XXXX XXXX CURRENT VALUE The second and the third line of the display are on the MASK column of the following list of parameters. In the first line is indicated the type of setup menu, I/O SETUP in this case, and at the corner the IdCode of the parameter.
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Page 32
Select Relay Condenser R3-R13/No I27. Select the relay linked to condenser fan conn R3-R13/No I28. Select Relay Humidifier Select the relay linked to humidifier conn R3-R13/No I29. Select Relay Cooling Select the relay linked to cooling conn R3-R13/No I30. Select Relay Freecooling Select the relay linked to freecooling conn Select Relay Low Temp. -
Page 33
Select Relay Broken (R3-R13)+(CW) I56. Select the relay activated by broken probe alarm IC1 Probe Al.IC1 or(CA)/No conn. Select Relay Broken (R3-R13)+(CW) I57. Select the relay activated by broken probe alarm IC2 Probe Al.IC2 or(CA)/No conn. Select Relay Broken (R3-R13)+(CW) I58. -
Page 34
Select Relay Output pow (R3-R13)+(CW) I85. Select the relay to activate by Output power limit status alarm limit st. or(CA)/No conn. Select Relay EEV IN (R3-R13)+(CW) I86. Select the relay to activate by EEV IN failure alarm failure or(CA)/No conn. Select Relay Ambient (R3-R13)+(CW) I87. -
Page 35
Select Relay Water Flow (R3-R13)+(CW) I113. Select the relay to activate by Water Flow Alarm (custom 31) Alarm or(CA)/No conn. (R3-R13)+(CW) I114. Select Relay Unit Off Select the relay to activate by Unit Off status or(CA)/No conn. Select Relay Unit Stand (R3-R13)+(CW) I115. -
Page 36
Select the polarity of digital output R10: I141. Polarity digit out R10 0 = normally opened 1 = normally closed Select the polarity of digital output R11: I142. Polarity digit out R11 0 = normally opened 1 = normally closed Select the polarity of digital output R12: I143. -
Page 37: Counters Menu
3.4.7. Counters menu By pressing the SET key from COUNTERS MENU you can screen the hours of activity of four parameters as below. VE ON: xxxxx H VC ON: xxxxx H CP ON: xxxxx H FC ON: xxxxx H The parameters visualized are: •…
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Page 38: System Maintenance
In this menu there are other five menus: Manual control (see par. 4.6) Reset data HKEY programming (please refer to doc. ‘C2020 installation, programming and software update’) Serial number Day programming (only Custom 14, see par. 7.14) To enter into the ‘reset data’ menu, press the SET key from the relative screen and a new screen will appear, where it’s possible to reset the counters and the history of alarms.
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Page 39: Control Functions
When Danfoss compressor is enabled, PC and TAE are read by Danfoss compressor (data points Modbus 40204 and 40216). The temperature control is delayed of 30 seconds from the switching on of the C2020 controller. The access to the data points Modbus is performed every 200 ms.
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Page 40
Application Control Microprocessor (AOC DRIVE) Registers — Address = 162 Address Size Description Type Unit Dir. 40101 AOC software version STRING 40111 AOC registers version STRING 40121 Drive status UNSIGNED 32 40123 De rating status UNSIGNED 32 40125 Safe mode status UNSIGNED 32 40127 Alarm… -
Page 41
S28. The drive of the Danfoss compressor is switched on by digital output R1 when the C2020 controller is switched on. The Danfoss compressor status is set by sending a new value to data point ModBus 40212. -
Page 42: Cooling
4.1.1. Cooling Parameters Compressor starts (DIG-OUT R1) when temp: Compressor stops (DIG-OUT R1) when temp: Unit Without T-ON=CS+[50% B] T-OFF=CS+[0% B] freecooling T-ON=S01+[M55*S06] T-OFF=S01+[M56*S06] With T-ON=CS+ [100% B]+[OFFSET FC*B]= T-OFF=CS+[50% B]+[OFFSET FC*B]= freecooling 25+[100%*5]+[40%*5]=32°C 25+[50%*5]+[40%*5] = 29.5°C TI-TAE>2°C T-ON=S01+[M57*S06]+[M36*S06] T-OFF=S01+[M58*S06]+[M36*S06] M55 — M56 Unit Without…
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Page 43: Dehumidification
4.2. Dehumidification The parameters involved are: • HUMIDITY SET POINT (DS): pre-set = 40% • COOLING BAND: (B): pre-set = 5°C • BAND HU (BHU): pre-set = 50% M69 DEHUMIDIFICATION ENABLE: YES/NO (Default = YES) • • M70 DEHUMIDIFICATION START: pre-set = 20% •…
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Page 44: Heater Logic
If internal humidity probe isn’t connected, the behaviour of fan is under the humidity switch control. The fan will be at 100% of its speed if the humidity switch is “ON” , otherwise it will be at min of its speed (M90). If the internal humidity probe is connected, the behaviour of fan will be as it is described below.
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Page 45: Humidification
4.3. Humidification The parameters involved are: • HUMIDITY SET POINT (DS): pre-set = 40% • BAND HU (BHU): pre-set = 50% • HUMIDIFICATION ENABLE: pre-set= NO • HUMIDIFICATION MODE: pre-set = 0 (Digital Humidifier) • HUMIDIFICATION START: pre-set = 20% •…
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Page 46: Freecooling
4.4. Freecooling The parameters involved are: • COOLING SET POINT (CS) : pre-set = 25°C • COOLING BAND : pre-set = 5°C • FREECOOLING ENABLE/OPTIONS: pre-set = Temperature • MIN IN-OUT ENTHALPY DIFF. FOR FREECOOLING: pre-set = 15KJ/Kg • START FREECOOLING UNIT 1 : pre-set = 0% •…
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Page 47: Function Description
4.4.1. Function description The parameter involved is: • SELECT RELAY FREECOOLING: pre-set = NO CONN. There are two control methods to do “freecooling” function: with damper or with damper and evaporator fan partialization. It’s possible to choose the control algorithm by the parameter M51 if 0 = only by damper;…
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Page 48: Assisted Freecooling
When PI control is enabled (parameter M31 set to 3), the conditions are: Start Freecooling Max damper aperture Max Freecooling U1=The evaporator fan is till at M90 U1 U1=S01+(M33/100)*S06 U1=S01+(M33/100)*S06+M39 U2=The evaporator fan is till at M90 U2 U2=S01+((M33+M36)/100)*S06 U2=S01+((M33+M36)/100)*S06+M39 The damper reaches its max aperture at the temperature: T max_ap_u1 = S01 + (M33 / 100) * S06 + (M90 / 100) * M39 T max_ap_u2 = S01 + ((M33 + M36) / 100) * S06 + (M90 / 100) * M39…
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Page 49: Hgb (Hot Gas Bypass) Control
4.4.3. HGB (Hot Gas Bypass) control The parameters involved are: • LIMIT SUPPLY TEMPERATURE IN FREECOOLING MODE: pre-set = 15 °C • BAND FOR LIMIT SUPPLY TEMPERATURE: pre-set = 5 °C • MINIMUM FREECOOLING DAMPER OPENING: pre-set = 0 % •…
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Page 50
From “MANUAL CONTROL” menu System off for Password for 30 xx min min unit off COOLING ON / OFF HEATING ON / OFF FREE COOLING XXX % VE SPEED XXX % VC SPEED XXX % TIMER XXX min Use UP/DOWN ARROW keys to move between the menu and press the SET key to enter into every menu. After that the state of the control can be modified by UP/DOWN ARROW keys. -
Page 51: Automatic Lead Lag Management (Master-Slave)
• COOLING: in this menu it’s possible to control the state of cooling mode, the temperature control rules are bypassed and compressor is forced on. ON: CP on, VE = 100% ; VC = 100% (UP key) / OFF: the cooling has an automatic control (DOWN key) •…
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Page 52
To enable Automatic lead lag (0 — no lead lag allowed; 1 — lead lag on running unit time; 2 — lead lag on running evaporator fan time) • SLAVE UNIT DELAY START : pre-set = 5 sec • CP START WITHOUT FREECOOLING : pre-set = 50% •… -
Page 53: Sequencing
In the next figure the connection is shown. UNIT 1 UNIT 2 SLAVE SLAVE RS485 4.8. Sequencing The parameters involved are: • COOLING SET POINT: pre-set= 25°C • HEATING SET POINT: pre-set= 15°C • COOLING BAND: pre-set= 5°C • HEATING BAND: pre-set= 5°C •…
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Page 54: System Installing Instruction
All the boards are connected by a bus to their RS485 serial port called SLAVE and it’s necessary an external adapter to split the SLAVE connector (Stulz accessory ACTADAPT). In this way two boards can be connect to the same serial port.
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Page 55: Lead Lag Management
4.8.4. Lead lag management In the system there is always a unit that is the “leader” one: it’s on and the system controls on its probe reading. If necessary, the leader can ask the support from the other units. At every interval time, settable by parameter M05, the role of leader is exchanged with that one which has the lower running hours of evaporator fan.
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Page 56: Cooling With Freecooling Conditions
T-ON = CS + [B / 3] T-ON = S01 + [S06 / M04] Where the offset is equal to: Offset = S06 / (number of units) = S06 / M04 4.8.6. Cooling with freecooling conditions If freecooling is enabled and it’s necessary to cool, before switching on the compressor of the leader unit, the damper of all units will be opened in according to the freecooling logic explained below.
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Page 57: Heating
Damper and evaporator fan regulation With this type of regulation, if in the system the max number of unit on is three (M04 = 3), the offset will be equal to: Offset = B / (3 * max number of units on) = S06 / (3 * M04) = S06 / (9) Unit 1 (Leader board) Unit 2 Unit 3…
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Page 58: Dehumidification With Humidity Switch
If in the system there are only three units, the offset will be: Offset = S03 / 3 = S03 / M04 4.8.8. Dehumidification with humidity switch If there isn’t the humidity probe and the humidity switch is present, the dehumidification function is under the control of the humidity switch.
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Page 59: Visualization
4.8.11. Visualization The parameter involved is: • M190 ENABLE CONTROL OF SEQUENCING SYSTEM: pre-set = YES The system may has only one user board for all the messages. Each of them must give information about the source unit, so in the first line of the screen there is the origin displayed. The standard screen is as the following one: dd/mm/yy Uxx hh:mm ——device——…
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Page 60: Condenser Fan Speed Management
Remote user mode When the system is on, it’s possible to choose the board at which ask information. If a CO3 user interface is connected to the master board and the SET key is pressed, the next screen will appear: Select the board If an EO3 user interface is connected to the master board and the UP + SET keys are pressed, ‘Ux’…
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Page 61: Night Mode
4.9.1. Night mode During night time it’s possible to reduce the total noise level by limiting the fan speed. The parameters involved are: • M123 NIGHT MODE START TIME: pre-set = 0 • M124 NIGHT MODE STOP TIME: pre-set = 0 •…
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Page 62: Evaporator Fan Speed Management
4.10. Evaporator fan speed management The parameters involved are: • FREECOOLING REGULATION: pre-set= DAMPER • DELAY TIME FOR START EVAPORATOR FAN: pre-set= 30 sec • DELAY TIME FOR STOP EVAPORATOR FAN: pre-set= 90 sec • MIN SWITCHING ON FOR EVAPORATOR FAN: pre-set= 10 sec •…
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Page 63: Control Under High External/Internal Temperature
In all other conditions, the evaporator fan runs at full speed limited by the value: M92 + (M93 — M92) * (Free cooling position) / 100 When the parameter M158 is set to YES, the parameter M51 is set to 0 (only by damper) and TI > (S01 + 1°C), then the evaporator fans status control is a proportional integral (PI) type.
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Page 64: Soft Control
If the unit is a split air one, the following screen will be displayed. dd/mm/yy hh:mm Room temp: xx.x °C Ext temp: yy.y °C VENTILATION MODE • YES: the unit is configured as standard C2020 controller with all its functions. EN/07.2013/58/64…
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Page 65: Offset Correction
Read on the display the value of analog channel that you want to calibrate; 2. Measure with a reference instrument the effective value; 3. Calculate the offset as ‘effective value’ — C2020 reading’; 4. Set the correspondent offset parameter with the value calculated above.
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Page 66: Alarms
Alarms Every alarm has an error message on the display. The alarm message is displayed on LCD alternatively (few seconds) with the standard display. Press the ESC button for more than 5 seconds to reset the alarm with manual reset. In the following table the alarm list is shown.
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Page 67
Alarm codes shown on EO3 user: ALARM CODE MAX TEMPERATURE HIGH TEMPERATURE LOW TEMPERATURE ANTIFREEZE LOW HUMIDITY HIGH HUMIDITY LOW PRESSURE HIGH PRESSURE AIR FLOW FIRE — SMOKE INTR. — VIBRATION POWER FAILURE VOLTAGE OUT OF RANGE DIRTY FILTER COMPRESSOR THERMIC HEATER THERMIC EVAPORATOR. -
Page 68
SUCTION PRESSURE LOW STATUS CONDENSER PRESSURE LOW STATUS CONDENSER PRESSURE HIGH STATUS OUTPUT POWER LIMIT STATUS EEV IN FAILURE AMBIENT TEMPERATURE INVALID SUCTION PRESSURE INVALID CONDENSER PRESSURE INVALID PERIPHERALS ERROR OUT OF ENVELOPE OVER CURRENT OVER VOLTAGE DRIVE TEMPERATURE HIGH SUPPLY VOLTAGE LOW DISCHARGE TEMPERATURE HIGH DISCHARGE TEMPERATURE INVALID… -
Page 69
Compressor thermic A5 DIG-IN enabled A5 DIG-IN disabled Evaporator fan thermic I48 A7 DIG-IN enabled A7 DIG-IN disabled Condenser fan A6 DIG-IN enabled A6 DIG-IN disabled thermic I56 (IC1) I57 (IC2) I58 (IC3) Analogue signal Analogue signal outside Broken probe ch. xxx I59 (T1) within the admitted the admitted range… -
Page 70: Supervision By
The parameter M09 (M13) selects which protocol manages the communication: 0=PEMS, 1=STULZ, 2=MODBUS STULZ, 3=SAIA-BUS, 4=MODBUS STANDARD. Note that after any change the controller must be restarted To allow the connection of a C2020 controller to the RS485 serial line, the serial 485 adapter (IS485, Stulz accessory ACTSERC1010) is required.
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Page 71: Modbus Stulz Protocol
There will be 2 kinds of connection in this system: The connection between the RS485 serial port (named PRG) of two C2020 controllers; The connection between the PRG port of a C2020 control board and the RS485 serial port of the host computer. 6.4.
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Page 72
Read coil status (0x01) With this function it’s possible to read the state of the machine. The state is shown by a bit: 0=OFF; 1=ON. The ModBus address corresponds to number of the bit. ModBus function 0x01: read coil status ModBus address MACHINE OFF MACHINE ON… -
Page 73
HEATER THERMIC EVAPORATOR FAN THERMIC CONDENSER FAN THERMIC LAN FAILURE EVAPORATOR FAN1 BLOCKED EVAPORATOR FAN2 BLOCKED EVAPORATOR FAN3 BLOCKED EXTERNAL ENABLE ABSENT BAD WORKING FREE COOLING HUMIDITY SWITCH LEVEL BROKEN PROBE CH. IC1 BROKEN PROBE CH. IC2 BROKEN PROBE CH. IC3 BROKEN PROBE CH. -
Page 74
OUTPUT POWER LIMIT STATUS EEV IN FAILURE AMBIENT TEMPERATURE INVALID SUCTION PRESSURE INVALID CONDENSER PRESSURE INVALID PERIPHERALS ERROR OUT OF ENVELOPE OVER CURRENT OVER VOLTAGE DRIVE TEMPERATURE HIGH SUPPLY VOLTAGE LOW DISCHARGE TEMPERATURE HIGH DISCHARGE TEMPERATURE INVALID INTERNAL ERROR PLC COMMUNICATION ERROR HOURS OF OPERATING OF FANS RUNTIME ERROR THERMOSTAT HIGH TEMP… -
Page 75: Index
(S008) Humidity band (S009) Alarm limit low temperature (S010) Hysteresis of low temperature alarm (S011) Alarm limit high temperature (S012) Hysteresis of high temperature alarm (S013) Alarm limit max temperature (S014) Hysteresis of max temperature alarm (S015) Alarm limit low humidity (S016) Alarm limit high humidity (S017) Alarm delay (humidity — temperature) (S018) Intrusion-vibration alarm delay…
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Page 76
Alarm 4/50 -Minute (low byte) and hour (high byte) Alarm 5/50 — Alarm index (*) Alarm 5/50 — Year Alarm 5/50 — Day (low byte) and month (high byte) Alarm 5/50 -Minute (low byte) and hour (high byte) Alarm 6/50 — Alarm index (*) Alarm 6/50 — Year Alarm 6/50 — Day (low byte) and month (high byte) Alarm 6/50 -Minute (low byte) and hour (high byte) -
Page 77
Alarm 16/50 — Day (low byte) and month (high byte) Alarm 16/50 -Minute (low byte) and hour (high byte) Alarm 17/50 — Alarm index (*) Alarm 17/50 — Year Alarm 17/50 — Day (low byte) and month (high byte) Alarm 17/50 -Minute (low byte) and hour (high byte) Alarm 18/50 — Alarm index (*) Alarm 18/50 — Year Alarm 18/50 — Day (low byte) and month (high byte) -
Page 78
Alarm 28/50 — Year Alarm 28/50 — Day (low byte) and month (high byte) Alarm 28/50 -Minute (low byte) and hour (high byte) Alarm 29/50 — Alarm index (*) Alarm 29/50 — Year Alarm 29/50 — Day (low byte) and month (high byte) Alarm 29/50 -Minute (low byte) and hour (high byte) Alarm 30/50 — Alarm index (*) Alarm 30/50 — Year… -
Page 79
Alarm 40/50 — Alarm index (*) Alarm 40/50 — Year Alarm 40/50 — Day (low byte) and month (high byte) Alarm 40/50 -Minute (low byte) and hour (high byte) Alarm 41/50 — Alarm index (*) Alarm 41/50 — Year Alarm 41/50 — Day (low byte) and month (high byte) Alarm 41/50 -Minute (low byte) and hour (high byte) Alarm 42/50 — Alarm index (*) Alarm 42/50 — Year… -
Page 80
ALARM INDEX MAX TEMPERATURE HIGH TEMPERATURE LOW TEMPERATURE ANTIFREEZE LOW HUMIDITY HIGH HUMIDITY LOW PRESSURE HIGH PRESSURE AIR FLOW FIRE — SMOKE INTR. — VIBRATION POWER FAILURE VOLTAGE OUT OF RANGE DIRTY FILTER COMPRESSOR THERMIC HEATER THERMIC EVAPORATOR FAN THERMIC CONDENSER FAN THERMIC LAN FAILURE EVAP. -
Page 81
CONDENSER PRESSURE HIGH STATUS OUTPUT POWER LIMIT STATUS EEV IN FAILURE AMBIENT TEMPERATURE INVALID SUCTION PRESSURE INVALID CONDENSER PRESSURE INVALID PERIPHERALS ERROR OUT OF ENVELOPE OVER CURRENT OVER VOLTAGE DRIVE TEMPERATURE HIGH SUPPLY VOLTAGE LOW DISCHARGE TEMPERATURE HIGH DISCHARGE TEMPERATURE INVALID INTERNAL ERROR PLC COMMUNICATION ERROR HOURS OF OPERATING OF FANS… -
Page 82
FREECOOLING (%) HUMIDIFIER (%) FAN DC1 (%) FAN DC2 (%) FAN DC3 (%) FAN AC (%) Force single coil (0x05) With this function it’s possible to set the state of the machine, for example switching on/off the machine or reset the alarm. The ModBus address corresponds to the number of the bit. -
Page 83: Saia-Bus Protocol
By the parameter M10 it’s possible to select the baud rate for the serial port. Saia-Bus protocol has two modes to communicate and the parameter M11 selects which mode. In the system there isn’t gateway to manage the communication, as shown in the figure below. C2020 Controller Host…
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Page 84
Analog outputs (SNMP address= 2) All the values are multiplied by 10. For example the value 102 is 10.2. AN-OUT SNMP Address Trap message FREECOOLING (%) HUMIDIFIER (%) FAN DC1 (%) FAN DC2 (%) FAN DC3 (%) FAN AC (%) Digital inputs (SNMP address= 3) DIG-IN SNMP Address… -
Page 85
Parameters (SNMP address= 5) (*): It means that the value is multiplied by 10. For example the value 102 is 10.2. Parameter SNMP Address Trap message (S001) Cooling set point (S002) Second cooling set point (S003) Heating set point (S004) Second heater set point (S005) Humidity set point (S006) Cooling band (S007) Heating band… -
Page 86
Alarms (SNMP address= 7) If the value is equal to 1, it means that the state is active. The trap message will be sent when the alarm change its state. Alarm SNMP Address Trap message MAX TEMPERATURE HIGH TEMPERATURE LOW TEMPERATURE ANTIFREEZE LOW HUMIDITY HIGH HUMIDITY… -
Page 87
SUCTION PRESSURE LOW STATUS CONDENSER PRESSURE LOW STATUS CONDENSER PRESSURE HIGH STATUS OUTPUT POWER LIMIT STATUS EEV IN FAILURE AMBIENT TEMPERATURE INVALID SUCTION PRESSURE INVALID CONDENSER PRESSURE INVALID PERIPHERALS ERROR OUT OF ENVELOPE OVER CURRENT OVER VOLTAGE DRIVE TEMPERATURE HIGH SUPPLY VOLTAGE LOW DISCHARGE TEMPERATURE HIGH DISCHARGE TEMPERATURE INVALID… -
Page 88: Web Monitoring
6.7. WEB Monitoring Using the WIB1000 it’s possible an HTTP monitoring. Following the relative data point. Window 2.a (INFO->value) There will be shown: Internal relative humidity (IRH) Pressure of condenser (PC) External relative humidity (ERH) Temperature of evaporator (TE) Temperature of condenser (TC) Internal temperature (TI) External temperature (TAE) Delivery air temperature (TM)
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Page 89
DIG – OUT R4 DIG – OUT R5 DIG – OUT R6 DIG – OUT R7 DIG – OUT R8 DIG – OUT R9 DIG – OUT R10 DIG – OUT R11 DIG – OUT R12 DIG – OUT R13 Window 3.a (OPERATE->value) It’s possible to set: (S001) Cooling set point… -
Page 90: Software Personalization For Custom Application
Software personalization for custom application 7.1. Custom 1 Analog input Logic ID Description of application Not Used Condenser Pressure (PC) Evaporator Temperature (TE) Internal Temperature (TI) Air outlet Temperature (TM) External Air Temperature (TAE) Not connected Not used In addition to the normal control functions, there are the following features: Alarms •…
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Page 91: Custom 15
7.6. Custom 6 Dirty second filter The signal of alarm is the A3 DIG-IN. When the alarm works, after a minute its cause appears. The alarm is associated to the “common alarm” relay; the reset is automatic. In the following table the “alarm description” is shown as it will appear on the LCD during alarm condition or in the alarm history menu.
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Page 92: Custom 19
Analogic output In the I/O menu, 4 new masks were added to define the logic of AN-OUT. The integral control for freecooling output was added (mask M37 — M38) and it has effect to both units. The two functions are to be integrated in all custom applications. Comfort mode The A9 DIG-IN is connected to a key to reduce the noise in the shelter.
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Page 93
7.12. Custom 12 There are changes from the standard application: – Low pressure on A9 instead of A13 DIG-IN. – Fire alarm on A7 DIG-IN. – Low voltage alarm not managed. – New alarm on A6 DIG-IN (Wrong Phase). – When ‘Wrong Phase’… -
Page 94
Visualization on CO3 user There will be a special mask. Internal temperature 1 and internal temperature 2: 28/01/08 12:42 CP OFF VE OFF CF OFF HEATER OFF SYSTEM OFF Visualization on EO3 user In normal mode is showed a special mask (page 13): Page 13 — Comfort status: “CF_XXX”… -
Page 95: Custom 21
7.21. Custom 21 • Control: Same control of standard application. • Alarm: – Air flow alarm: this alarm is bypassed. – External enable: the input for this alarm is logical or between A4 and A12 (air flow alarm), instead of A4. 7.22.
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Page 96
Conditions to enable the Free-Air fan: Conditions to disable the Free-Air fan: If ((Fan Speed ≥ M138) and (Fan Speed > 0)) If (Fan Speed = 0) The Free-Air fan speed is limited by the parameters M138 and M139 as described below: If (Fan Speed <… -
Page 97
Manual control The speed of Free-Air fan can be controlled manually by the menu VE speed in manual control. The speed of Free-Air fan (V3) is set equal to the speed of evaporator fans (V1 e V2). Alarms • High temperature: if the high temperature alarm occurs in night mode, the compressor is enabled. •… -
Page 98: Custom 24
Visualization on EO3 user In normal mode is showed a special mask (page 13): Page 13 — Free air fan status: “FA_XXX” (XXX = % or OFF) Page 14 — Firmware version and custom: “STUTL2XX_YY_23” (XX_YY = Firmware version) 7.24. Custom 24 Night mode The parameter involved is: –…
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Page 99
TI ≤ S01+M136: The damper is closed and the fans speed is set to 0 %. S01+M136 ≤ TI < S01+M31*S06: Recirculation mode. S01+M31*S06 ≤ TI < M151: Freecooling mode is enabled if M40 < TAE < M41, TI-TAE > M39, Internal humidity <… -
Page 100: Custom 25
• M156 ENABLE DANFOSS COMPRESSOR: pre-set = NO When custom 25 is enabled, the C2020 controller communicates with a PLC by Modbus protocol. The C2020 controller is the slave board. The baud rate is automatically set to 19200 bps. When custom 25 is enabled, the Danfoss compressor must be enabled (M156 set to YES) and the parameter M09 must be set to a value different from MODBUS STULZ or MODBUS STANDARD.
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Page 101
Read coil status function Address Description Note WARNING Send 1 to the PLC if a common warning is active; 0 otherwise A03 — ALARM LOW PRESSURE Send 1 to the PLC if the alarm is active; 0 otherwise A05 — ALARM AIR FLOW Send 1 to the PLC if the alarm AIR FLOW or EVAPORATOR FANX BLOCKED is active;… -
Page 102
Force single coil function Address Description Note SET FAN STATUS Get the evaporator fan status from the PLC to set the status without bypass the delay times set by parameters(1 = ON; 0 = OFF). If the PLC asks to turn off the evaporator fans and the compressor is on, the compressor is turned off first, then the evaporator fans SET DAMPER STATUS… -
Page 103
The alarm will be active with a delay of M179 seconds, if there is no communication with the PLC. It’s possible to connect the alarm to a relay and/or to associate it to “common warning” or “common alarm” relay by I99. -
Page 104: Custom 26
ENGLISH ALARM THERMOSTAT HIGH TEMP • Internal temperature probe: when this alarm is active, no device is disabled. • Condenser fan thermic: when this alarm is active, the compressor is switched off. • Condenser pressure: when this alarm is active, the compressor is switched off. •…
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Page 105: Custom 29
Alarm Fc stop by fire The parameter involved is: • I108 SELECT RELAY FC STOP BY FIRE: pre-set = CA The signal of alarm is A1 digital input. If this alarm occurs, the freecooling will be switched off. The reset is manual. It’s possible to connect the alarm to a relay and/or to associate it to “common warning”…
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Page 106: Custom 30
7.30. Custom 30 It manages free cooling units. ANOUT2 has a value proportional to the free cooling. ANOUT2 will be activated 60 seconds after free cooling is on. System configuration Default probe configuration (selected by I/O setup): • Internal Temperature TI (T1) •…
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Page 107
Alarms • Probes alarm TI stops all, TAE stops free cooling, TM bypass relative bad working alarm. Visualization on CO3 user There will be some special masks. Status of TM 28/01/08 12:42 TM:— SYSTEM OFF Damper opening and fan speed: 28/01/08 12:42 DAMPER: XX %… -
Page 108: Custom 31
7.31. Custom 31 As standard application with the following differences. Control Inverter modulation on ANOUT2. Danfoss control methods are used to calculate the modulation. Limitation of Inverter modulation depends on PC value: If Modulation > 0 and PC > 38 bar: modulation will be the maximum between 34% and control modulation. The condition is reset when PC <…
1. Introduction ……………………………………………………………………………………………………………………………………..6
2. Hardware features ……………………………………………………………………………………………………………………………6
2.1. Technical data ……………………………………………………………………………………………………………………………7
2.2. SB7 board layout ………………………………………………………………………………………………………………………..8
2.3. I/O assignment …………………………………………………………………………………………………………………………..9
2.4. Communication ………………………………………………………………………………………………………………………..13
2.5. User interface …………………………………………………………………………………………………………………………..14
2.5.3.WIB1000……………………………………………………………………………………………………………………………15
3. Interfaces ………………………………………………………………………………………………………………………………………16
3.1. Visualization on E03 User ………………………………………………………………………………………………………….16
3.2. Menu on E03 user …………………………………………………………………………………………………………………….17
3.2.2.Entering the menu ………………………………………………………………………………………………………………17
3.4. Menu on C03 user …………………………………………………………………………………………………………………….20
3.4.2.Entering the menu ………………………………………………………………………………………………………………20
3.4.4.User setup …………………………………………………………………………………………………………………………22
3.4.5.Manufacturer setup …………………………………………………………………………………………………………….23
3.4.6.I/O Setup …………………………………………………………………………………………………………………………..31
3.4.7.Counters menu …………………………………………………………………………………………………………………..37
3.4.8.Alarm history menu …………………………………………………………………………………………………………….37
3.4.9.System maintenance …………………………………………………………………………………………………………..38
3.4.10.Menu of WIB1000 board ……………………………………………………………………………………………………38
4. Control functions …………………………………………………………………………………………………………………………….39
4.1. Temperature control ………………………………………………………………………………………………………………….39
4.1.1.Cooling ……………………………………………………………………………………………………………………………..42
4.1.2.Heating ……………………………………………………………………………………………………………………………..42
4.2. Dehumidification ……………………………………………………………………………………………………………………….43
4.2.1.Compressor logic ……………………………………………………………………………………………………………….43
4.2.2.Evaporator fan logic ……………………………………………………………………………………………………………43
4.2.3.Heater logic ……………………………………………………………………………………………………………………….44
4.3. Humidification …………………………………………………………………………………………………………………………..45
4.4. Freecooling ………………………………………………………………………………………………………………………………46
4.4.1.Function description ……………………………………………………………………………………………………………47
4.4.2.Assisted freecooling ……………………………………………………………………………………………………………48
4.4.3.HGB (Hot Gas Bypass) control …………………………………………………………………………………………….49
EN/07.2013/58/3
Specifications:
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Accompanying Data:
Stulz C2020 Controller PDF Operating Instructions Manual (Updated: Monday 26th of December 2022 11:59:41 PM)
Rating: 4.1 (rated by 93 users)
Compatible devices: E2 Series, Seven Aktorik Ecotron 2SA7, Ramsey Micro-Tech 3000 Series, Decora Smart, STULZ Ultra Series, MC-4E, START-UP, PH CONTROLLER.
Recommended Documentation:
Stulz C2020: Text of Operating Instructions Manual
(Ocr-Read Version Summary of Contents, UPD: 26 December 2022)
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42, EN/07.2013/58/42 4.1.1. Cooling Parameters Compressor starts (DIG-OUT R1) when temp: Compressor stops (DIG-OUT R1) when temp: Unit 1 Without freecooling M55 M56 T-ON=CS+[50% B] T-ON=S01+[M55*S06] T-OFF=CS+[0% B] T-OFF=S01+[M56*S06] With freecooling TI-TAE>2°C M57 M58 M36 T-ON=CS+ [100% B]+[OFFSET FC*B]= 25+[100%*5]+[40%*5]=32°C T-ON=S01+[M57*S06]+[M36*S06] …
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85, EN/07.2013/58/85 Parameters (SNMP address= 5) (*): It means that the value is multiplied by 10. For example the value 102 is 10.2. Parameter SNMP Address Trap message (S001) Cooling set point 1 No (S002) Second cooling set point 2 No (S003) Heating set point 3 No (S004) Second heater set point 4 No (S005) Humidity set point 5 No (S006) Cooling band 6 No (S007) Heating band 7 No (S…
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45, EN/07.2013/58/45 4.3. Humidification The parameters involved are: • S05 HUMIDITY SET POINT (DS): pre-set = 40% • S08 BAND HU (BHU): pre-set = 50% • M77 HUMIDIFICATION ENABLE: pre-set= NO • M78 HUMIDIFICATION MODE: pre-set = 0 (Digital Humidifier) • M79 HUMIDIFICATION START: pre-set = 20% • M80 HUMIDIFICATION STOP: pre-set = 2% The humidification is en…
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58, EN/07.2013/58/58 If in the system there are only three units, the offset will be: Offset = S03 / 3 = S03 / M04 4.8.8. Dehumidification with humidity switch If there isn’t the humidity probe and the humidity switch is present, the dehumidification function is under the control of the humidity switch. The parameters involved are: • M04 MAX NUMBER OF UNITS ON: pre-set = 1 • M75…
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78, EN/07.2013/58/78 Alarm 28/50 — Year 149 Alarm 28/50 — Day (low byte) and month (high byte) 150 Alarm 28/50 -Minute (low byte) and hour (high byte) 151 Alarm 29/50 — Alarm index (*) 152 Alarm 29/50 — Year 153 Alarm 29/50 — Day (low byte) and month (high byte) 154 Alarm 29/50 -Minute (low byte) and hour (high byte) 155 Alarm 30/50 — Alarm index (*) 156 Alarm 30/50 — Year 157…
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59, EN/07.2013/58/59 4.8.11. Visualization The parameter involved is: • M190 ENABLE CONTROL OF SEQUENCING SYSTEM: pre-set = YES The system may has only one user board for all the messages. Each of them must give information about the source unit, so in the first line of the screen there is the origin displayed. The standard screen is as the following one: dd/mm/yy Uxx hh:mm ——device—…
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105, EN/07.2013/58/105 Alarm Fc stop by fire The parameter involved is: • I108 SELECT RELAY FC STOP BY FIRE: pre-set = CA The signal of alarm is A1 digital input. If this alarm occurs, the freecooling will be switched off. The reset is manual. It’s possible to connect the alarm to a relay and/or to associate it to “common warning” or “common alarm” relay by parameters I108. In …
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73, EN/07.2013/58/73 HEATER THERMIC 29 EVAPORATOR FAN THERMIC 30 CONDENSER FAN THERMIC 31 LAN FAILURE 32 EVAPORATOR FAN1 BLOCKED 33 EVAPORATOR FAN2 BLOCKED 34 EVAPORATOR FAN3 BLOCKED 35 EXTERNAL ENABLE ABSENT 36 BAD WORKING 37 FREE COOLING 38 HUMIDITY SWITCH 39 LEVEL 40 BROKEN PROBE CH. IC1 41 BROKEN PROBE CH. IC2 42 BROKEN PRO…
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23, EN/07.2013/58/23 S13. Alarm limit max temperature Set point for the max temperature alarm -999/999°C °C/F S14. Hysteresis of max temp alarm Hysteresis of max temperature alarm 0/30°C °C/F S15. Alarm limit low humidity Set point for the low humidity alarm 0/100% % S16. Alarm limit high humidity Set point for the high humidity alarm 0/100% % S 1 7. Alarm delay (humid-temp) Ala…
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27, EN/07.2013/58/27 M84. Evaporator fan configuration Configuration of evaporator fans: which fans are present 0/7 — M85. Min Speed for tachometric signal Speed for begin to control tachometric signal 0/100 % M86. Delay time for start evap fan Delay time of start evaporator fan 0/999 Sec M87. Delay time for stop evap fan Delay time of stop evaporator fan 0/999 Sec M88. …
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75, EN/07.2013/58/75 (S008) Humidity band 8 (S009) Alarm limit low temperature 9 (S010) Hysteresis of low temperature alarm 10 (S011) Alarm limit high temperature 11 (S012) Hysteresis of high temperature alarm 12 (S013) Alarm limit max temperature 13 (S014) Hysteresis of max temperature alarm 14 (S015) Alarm limit low humidity 15 (S016) Alarm limit high humidity 16 (S017) Alarm dela…
Stulz C2020: Recommended Instructions
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Additional Information:
Operating Impressions, Questions and Answers:
Table of Contents for Stulz C2020:
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EN/07.2013/58/18 If A — User setup is selected: • The display will show the code of the parameter • Use UP / DOWN keys to scroll all the parameters If B — Counters menu is selected: • Use UP / DOWN keys to visualize one at a time the hours of activity of four devices (with string rotation) as below: – Page 1 — Hours of evaporator fans activity (x100 h): “EF_XXX” – Page 2 — Hours of condenser fan activity (x100
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EN/07.2013/58/53 In the next figure the connection is shown. 4.8. Sequencing The parameters involved are: • S01 COOLING SET POINT: pre-set= 25°C • S03 HEATING SET POINT: pre-set= 15°C • S06 COOLING BAND: pre-set= 5°C • S07 HEATING BAND: pre-set= 5°C • M01 AUTOMATIC LEAD LAG ADDRESS: pre-set = 0 • M03 NUMBER OF PRESENT UNITS: pre-set = 1 • M04 MAX NUMBER OF UNITS ON: pre-set = 1 • M05 ROTATION HOUR S
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EN/07.2013/58/77 Alarm 16/50 — Day (low byte) and month (high byte) 102 Alarm 16/50 -Minute (low byte) and hour (high byte) 103 Alarm 17/50 — Alarm index (*) 104 Alarm 17/50 — Year 105 Alarm 17/50 — Day (low byte) and month (high byte) 106 Alarm 17/50 -Minute (low byte) and hour (high byte) 107 Alarm 18/50 — Alarm index (*) 108 Alarm 18/50 — Year 109 Alarm 18/50 — Day (low byte) and month (high byte) 110 Alarm 18/50 -Minute (low byte
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EN/07.2013/58/95 7.21. Custom 21 • Control: Same control of standard application. • Alarm: – Air flow alarm: this alarm is bypassed. – External enable: the input for this alarm is logical or between A4 and A12 (air flow alarm), instead of A4. 7.22. Custom 22 Same functionality of customs 15 and 19. 7.23. Custom 23 This custom manages a Free-Air fan connected to AN-OUT V3. Free air fan The parameters involved a
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EN/07.2013/58/70 RS485 Serial line RS232 Serial line 6. Supervision by The parameters involved are: • M08 REMOTE ASSISTANCE ADDRESS: pre-set = 1; • M09 SERIAL PROTOCOL: pre-set = 0; • M12 Address assigned to SPI connector 0=PEMS, 1=STULZ, 2=MODBUS STULZ, 4=MODBUS STANDARD: pre-set= 1 • M13 Serial protocol SPI connector: pre-set= PEMS The C2020 controller can communicate, through the PRG serial port or/and through WIB1000 connected to the SPI connector, with
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EN/07.2013/58/101 Read coil status function Address Description Note 171 WARNING Send 1 to the PLC if a common warning is active; 0 otherwise 172 A03 — ALARM LOW PRESSURE Send 1 to the PLC if the alarm is active; 0 otherwise 173 A05 — ALARM AIR FLOW Send 1 to the PLC if the alarm AIR FLOW or EVAPORATOR FANX BLOCKED is active; 0 otherwise 174 A07 — ALARM HEATER THERMIC Send 1 to the PLC if the alarm is active;
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EN/07.2013/58/20 Possible states of the system: • SYSTEM OFF: the system has been switched off by the ON-OFF key. Components of the unit are not working, alarms are disabled, the unit is still supplied and the controller is working. • SYSTEM ON: the system has been switched on by the ON-OFF key; unit is working according to the set logic. • STAND-BY: the system is on, but the unit doesn’t have to work for a certain time (e.g. due to sequencing function). • EMERGENCY
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EN/07.2013/58/33 I56. Select Relay Broken Probe Al.IC1 Select the relay activated by broken probe alarm IC1 (R3-R13)+(CW) or(CA)/No conn. — I57. Select Relay Broken Probe Al.IC2 Select the relay activated by broken probe alarm IC2 (R3-R13)+(CW) or(CA)/No conn. — I58. Select Relay Broken Probe Al.IC3 Select the relay activated by broken probe alarm IC3 (R3-R13)+(CW) or(CA)/No conn. — I59. Select Relay Broken Pr
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EN/07.2013/58/24 M04. 13 14 Max number of units on Max number of units which can be on simultaneously 0/10 — M05. Rotation hours setting Automatic Lead Lag delay (between units) 0/999 HRS M06. Lead lag enable 0 no lead lag allowed: 1)lead lag on running unit time, 2)lead lag on running fan time. Note: actually 1 and 2 have the same behaviour (rotation based on evaporator fan) 0/2 — M07. Slave unit delay start Delay start slave unit for suppor
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EN/07.2013/58/26 M57. CP Start with freecooling Compressor management with freecooling UNIT 1 – Start 0/100% — M58. CP Stop with freecooling Compressor management with freecooling UNIT 1 – Stop 0/100% — M59. Compressor unit 2 offset value Compressor management UNIT 2 Offset for Start/Stop 0/100% — M60. Min switch on time compressor Compressor management: minimum starting time 0/9999 Sec M61. Min switch off time compressor Compressor management
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EN/07.2013/58/106 7.30. Custom 30 It manages free cooling units. ANOUT2 has a value proportional to the free cooling. ANOUT2 will be activated 60 seconds after free cooling is on. System configuration Default probe configuration (selected by I/O setup): • Internal Temperature TI (T1) • External Air Temperature TAE (T3) • Internal Relative Humidity: IRH (IC2) The comfort unit is not present and there isn’t evaporator. There is free cooli
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Контроллер Electronic board C2020-MICROPROCESSOR 512KB Flash, 12KB RAM, 32KBEPROM
Доставим до: 28 Апреля 2023
| Производитель: | Stulz |
| Артикул: | 300480131 |
Наличие: |
Есть в наличии |