T E C H N I C A L M A N U A L TECHNICAL MANUAL C 5300 CV/06-00 GB GB
The information contained in this document may be modified without prior notice and is in no way binding, even implicitly, for CLIMAVENETA. No part of this document may be reproduced and/or disclosed to third parties or competitors.
Summary 1 DESCRIPTION OF THE CONTROL PANEL...2 2 PROCEDURE FOR SWITCHING THE UNIT ON AND OFF...4 3 READING THE VALUES MEASURED BY PROBES AND STATE OF INPUTS...4 4 SELECTING THE OPERATING MODE...4 5 ALARMS...5 6 ADJUSTMENT...6 6.1 ADJUSTMENT METHOD...6 7 MENU STRUCTURE...8 7.1 MAIN MENU...8 7.2 I/O MENU...8 7.3 SET MENU... 10 7.4 CLOCK MENU... 10 7.5 PROGRAMMING MENU... 11 7.6 MANUFACTURER MENU... 14 7.7 SERVICE MENU... 19 7.8 ALARMS... 22 8 WHAT TO DO IF... 27 8.1 THE UNIT DOES NOT START UP... 27 8.2 WHEN SWITCHED ON ONE OF THE FOLLOWING SITUATIONS OCCURS:... 28 8.3 INCORRECT INPUT SIGNAL READINGS... 28 8.4 EEPROM FAULT ALARM... 28 8.5 DOUBTFUL INPUT ALARM SIGNAL... 28 8.6 INCORRECT INPUT SIGNAL READINGS... 28 8.7 SERIAL CONNECTION WITH LOCAL SUPERVISOR DOES NOT FUNCTION... 29 8.8 CONNECTION WITH REMOTE SUPERVISOR DOES NOT FUNCTION... 29 8.9 THE USER TERMINAL IS BLOCKED (IT DOES NOT RESPOND WHEN KEYS ARE PRESSED)... 29 9 PROCEDURE FOR TERMINAL CONFIGURATION... 30 C. I/O BOARD SELECTION... 31 10 ATTACHMENTS... 33 ATTACHMENT A: ALARMS... 33 ATTACHMENT B: PARAMETERS... 34 ATTACHMENT C:INPUT/OUTPUT... 36 1
1 DESCRIPTION OF THE CONTROL PANEL The control panel is used to make all adjustments required to operate the unit and to view the values of the main parameters. The control panel is characterised by (FIG. 1): KEYS: n 5 in silicon rubber (A) n 10 protected by polycarbonate label (B) LEDs: n 3 under the silicon rubber keys (A) n 10 under the polycarbonate keys (B) DISPLAY: LCD 4 lines X 20 characters (C) C B A Fig. 1 The operator has 15 keys with which to control the unit and access system information: ON-OFF KEY. Used to switch the machine on and off. The LED of the key lights up to indicate that the unit is switched on. ALARM KEY. Used to display the alarms, reset them and switch off the buzzer. If the key is lit this means that at least one alarm has been detected. 2
UP KEY. Used to manage the masks on the display and to set control parameter values. DOWN KEY. Used to manage the masks on the display and to set control parameter values. ENTER KEY. Used to confirm settings. The LED lights up the key to indicate that power is supplied to the unit. MENU KEY. Views the values measured by the input/output probes. (condenser if it is a heat pump). SERVICE KEY. Views the technical service masks reserved for technical assistance for maintenance operations. PRINTER KEY. Function not available. I/O KEY. Views the state of card inputs and outputs. CLOCK KEY. Used to view/programme the clock. SET KEY. Used to set set points. PROG KEY. Used to set the various operating parameters. UNIT KEY. On the remote keyboard, used to select the unit for which information is to be viewed. KEY with sun. When the unit is switched off, used to select WINTER operating mode (heating). KEY with snowflake. When the unit is switched off, used to select SUMMER operating mode (cooling). The LEDs at the side of each key light up when the relevant function is switched on. 3
2 PROCEDURE FOR SWITCHING THE UNIT ON AND OFF IMPORTANT: connect the unit to the power supply at least 8 hours before starting to use it. The LED which lights up the ENTER key indicates that the unit is connected to the power supply. SWITCHING ON: press the ON-OFF key. The green LED lights up to indicate that the unit has been switched on. SWITCHING OFF: press the ON-OFF key. The green LED goes off to indicate that the unit has been switched off. 3 READING THE VALUES MEASURED BY PROBES AND STATE OF INPUTS The values measured by probes and the state of inputs are read by scrolling the I/O menu. VIEWING: Press the I/O key. The green LED lights up to indicate that the menu has been accessed. Use the UP - DOWN key to scroll the masks inside the menu (see 7.2). Press any other key to exit from this menu. 4 SELECTING THE OPERATING MODE In units which operate in cooling and heating mode, switch over from SUMMER to WINTER can be obtained in the following ways: A. SUM/WIN from the panel B. SUM/WIN from external contact A. SUM/WIN from the panel Press: - the key to select WINTER mode (heating); - the key to select SUMMER mode (cooling). 4
SWITCH-OVER FROM SUMMER TO WINTER (from cooling to heating): - Press the ON-OFF key. The green LED goes off to indicate that the unit has been switched off. - Press the key with the sun. The green LED lights up to indicate that switch-over to WINTER mode has been obtained. - Press the ON-OFF key. The green LED lights up to indicate that the unit has been switched on. SWITCH-OVER FROM WINTER TO SUMMER (from heating to cooling): - Press the ON-OFF key. The green LED goes off to indicate that the unit has been switched off. - Press the key with the snowflake. The green LED lights up to indicate that switch-over to SUMMER mode has been obtained. - Press the ON-OFF key. The green LED lights up to indicate that the unit has been switched on. IMPORTANT: The operating mode must only be changed with the unit SWITCHED OFF. IMPORTANT: Do not switch from summer to winter mode unless the input temperature is above 20 C. IMPORTANT: Do not switch for winter to summer mode unless the input temperature is below 20 C. B. SUM/WIN from external contact This mode must be requested. It allows switch-over via an external contact even with the unit SWITCHED ON. 5 ALARMS If an alarm is triggered this is indicated by the ALARM key (red light) lighting up and a buzzer sounding. Press the ALARM key once to switch off the buzzer and view the alarm message with its relevant code. To reset the alarm press the ALARM key again. When no alarms have been triggered, by pressing the ALARM key the message No Alarm Active is viewed (see 7.6). Press any other key to exit from this menu. See attachment A for the list of alarm codes, and paragraph 7.6 for the description. 5
6 ADJUSTMENT The set point is set in the SET menu. Use the UP - DOWN keys to scroll the masks inside the menu (see 7.3). 6.1 ADJUSTMENT METHOD The unit is regulated through the inlet water temperature by setting the SET POINT and the PROPORTIONAL BAND. Example of adjustment SUMMER N=4 (n of steps) SET + proportional band/4 SET + proportional band 100 % 75 % 50 % 25 % SET proportional band Tin The values normally used for the SET POINT and the PROPORTIONAL BAND are: SET POINT 7 C PROPORT. BAND 5 C With these settings, the theoretical minimums and maximums for the output temperature with nominal flow rates and therefore with a thermal head at the evaporator of 5 C, are: Min. theoretical output temp.: 5.7 C Max. theoretical output temp.: 8.3 C 6
WINTER N=4 (n of steps) 100 % SET - proportional band/4 SET - proportional band 75 % 50 % 25 % proportional band SET Tin The values normally used for the SET POINT and the PROPORTIONAL BAND are: SET POINT 45 C PROPORT. BAND 5 C With these settings, the theoretical minimums and maximums for the output temperature with nominal flow rates and therefore with a thermal head at the evaporator of 5 C, are: Min. theoretical output temp.: 43.7 C Max. theoretical output temp.: 46.3 C 7
7 MENU STRUCTURE 7.1 MAIN MENU 14:08 u:01 02/06/00 Inp. temp. 12.3 C Out. temp. 1 07.3 C ON - Visualisation of the input temperature - Visualisation of the evaporator 1 output temperature - Visualisation of the unit status 14:08 u:01 02/06/00 Inp. temp. 12.3 C Out. temp. 2 07.4 C ON - Visualisation of the input temperature - Visualisation of the evaporator 2 output temperature - Visualisation of the unit status 7.2 I/O MENU Digital input: CCCCCCCCCCCC Digital output: AAAAAAAAAAAAA - Visualisation of the status of the digital inputs and output in the order indicated on the number of the terminals. C: contact closed A: contact open Analog inputs: N value 1 12.3 C 2 07.3 C - Visualisation of analog inputs 1 and 2. Analog inputs: N value 3 07.4 C 4 00.0 C - Visualisation of analog inputs 3 and 4. 8
Analog inputs N value 5 15.0 bar 6 14.0 bar - Visualisation of analog inputs 5 and 6. Analog inputs: N value 7 00.0 C 8 --.- C - Visualisation of analog inputs 7 and 8. Analog outputs: N value Y0: 00.0 V Y1: 00.0 V - Visualisation of analog outputs 0 and 1. - The code and date vary according to the software version installed. Code: MSK97_11 02/06/2000 9
7.3 SET MENU Active set point: 07.0 C - Mask visualising the current set point. - If an R is showing in the up-right corner, the active set point is the secondary. Chiller set point Heat pump set point 07.0 C 45.0 C - Mask for setting set points: Press ENTER and then UP DOWN to adjust the set. Press ENTER again to confirm the adjustment. Chiller secondary Set point 12.0 C Heat pump secondary set point 45.0 C - Mask for setting secondary set point only visible if the secondary set point is enabled: Press ENTER and then UP DOWN to adjust the set. Press ENTER again to confirm the adjustment. 7.4 CLOCK MENU Clock not installed Viewed if the clock card has not been installed. Clock Config.: Hour 14:08 Date 02/06/00 - Setting the hour and date: Press ENTER and then UP DOWN to adjust the set. Press ENTER again to confirm the adjustment. 10
7.5 PROGRAMMING MENU To access the PROGRAMMING MENU: 1. Press the key 2. Use the key to compose the password 3. Confirm the password by pressing the key Enter user password 00000 - Default 1234 - Can be personalised 4. Press the key to scroll the menu pages Chiller set point limits: Low 05.0 C High 15.0 C - Maximum and minimum settable set point values Heat pump set point limits: Low 30.0 C High 55.0 C - Maximum and minimum set point values only visible if the heat pump is enabled Type of regulation: - Used to define which temperature probe is used for regulation. If the unit has more than one evaporator only input adjustment is possible. INPUT Input regulation: Type Integr. time PROPORTION. 0600s - Used to define the type of regulation. 11
Output regulation: Time of start-up Time of shut-down 0000s 0000s - Only visible if Type of regulation is set to output. - Start-up time: activation time between two compressors. - Shut-down time: delay time between shut-down of two compressors Forced shut-down with output reg.: Summer 00.0 C Winter -00.0 C - Only visible if Type of regulation is set to output. - Forces the compressors to shut down if: Summer Tout < summer minimum Winter Tout > winter maximum External set point Enabled N Min. 00.0 C Max. 06.0 C - Used to enable external set point variation and maximum and minimum variation limits. Temperature regul. band 05.0 C - Proportional band to regulate the temperature (see 6.1) Minimum time between pump switch-on and compressor switch-on 060 s - Used to define the delay between pump switch-on and compressor switch-on after the unit is switched on. Delay in pump shut-down 060 s - Used to define the delay in pump shut-down after the unit is switched off. On/off enabled from digital input Sum/win enabled from digital input N N - Enables external interlocking relays. 12
On/off enabled from supervisor Sum/win enabled from supervisor N N - Enables the external interlocking relays. Defrost parameters: Start 03.0 bar Stop 14.0 bar Only visible for heat pump units - Used to define the pressure set points for start and end of defrosting. Defrost parameters: Delay 01800s Max time 00300s Drip time 120s - Delay: Accumulative time that is counted before the defrost procedure starts. - Max time: Maximum defrost time. - Drip time: Battery drip time after defrost. Enter other user password - Used to personalise the password. 0000 13
7.6 MANUFACTURER MENU To access the MANUFACTURER MENU: 1. Simultaneously press the keys and 2. Use the keys to enter the manufacturer password. 3. Confirm the password by pressing the key. Insert manufacturer password: 00000 4. Press the key to access the menu pages. Configuration: 00 >WATER/AIR UNIT < >CHILLER < >HERMETIC COMPRES.< - 00 : Water/air chiller - 02 : Air/water heat pump - 06 : Water/water chiller - 07 : Water/water heat pump Configuration No. Of evaporators: - Used to set the number of evaporators on the unit. 2 EVAPORATORS Probe enabled B1: Y B2: Y B3: Y B4: N B5: N B6: N B7: N - The number of probes enabled depends on the type of unit. 14
Compressor config. - Used to set the no. of compressors used for the unit. No. of compressors 4 Compressor config. Comp rotation Y Balanced rotation Y - Used to enable rotation of compressor operation. Rotation is not based on operating hours but FIFO (first in first out). With balance rotation compressors are also distributed among the refrigerating circuits. Clock card Installed Y - The clock card is enabled by default. This parameter is used to disable it. Configuration of Digital input 1: MAJOR ALARM - Used to enable digital input no. 1 as the signal that causes the unit to shut down. This input allow to enable/disable the SECONDARY SET POINT adjustable from set point menu. Min. compressor Start-up time Min. compressor Shutdown time 0010 s 0060 s - Minimum switch on time of a compressor. - Minimum switch off time of a compressor. Min time bet. starts diff. comp. Min time bet. starts same comp. 0010 s 0360 s - Anti-inrush time to prevent overcurrents at start-up due to simultaneous request. - Time used to limit the number of start-ups per hour of the compressors. 15
Condensation check Enabled : NO Type : STEPS - Used to enable or leave disabled condensation control. If NO is set, the fans are switched on at the same time as the compressors. - If PRESSURE is set and regulation is continual, fan speed varies as indicated in the following mask. Condensation check Set point 12.0 bar Diff. 08.0 bar min speed max speed Set point Set point + Diff. Press. Only with continual regulation Speed regulator Max. speed 10.0 V Min. speed 00.0 V Min. time ON 000 s - Only for continual regulation: see fig. above. Fan-set enabled N Set point 23.0 --- Diff. 03.0 --- - Used to enable a set point to force ventilation at 100%, with continual regulation. High pressure alarm from transducers: Set point 24.5 bar Diff. 07.0 bar - Alarm that blocks the circuit. Low pressure alarm N activations 3 Period 3600 s Start timeout 120 s - Number of automatic reset operations in the same hour (PERIOD). - By-pass time of the start-up minimum pressure alarm. 16
Compressor overload alarm: - Only for BRISTOL compressors this must be set to 360 sec. Bypass time 000 s Antifreeze alarm - Alarm that blocks the unit. Set point 03.0 C Diff. 04.0 C Antifreeze resist. Set point 03.0 C Diff. 04.0 C - Normally this has the same values as the anti-freeze alarm. Defines the set point for anti-freeze heating elements cut-in. Evaporator flow switch alarm: Delayed start Delayed run 010 s 001 s - Start-up delay: minimum time in which flow must remain constant before the compressors switch-on. - Running delay: minimum time of flow meter operation with the compressors switched on. Condenser flow switch alarm: Delayed start Delayed run 010 s 001 s - Start-up delay: minimum time in which flow must remain constant before the compressors switch on. - Running delay: minimum time of flow meter operation with the compressors switched on. Cycle reversal valves logic N.C. - Polarity of the relay that controls cycle inversion valve. Defrost configur. Probe PRESSURE Type SEPARATE Off Comp: OUTPUT - Type: depends on how the machine has been manufactured - Comp. off: used to set the compressor status at the start or finish of the defrost procedure. 17
Supervision System Communication Speed 1200 (RS485/RS422) ID N. 001 - Unit address. Unit reset to Default values N Enter other factory Password - Used to personalise the manufacturer password. 0000 18
7.7 SERVICE MENU To access the SERVICE MENU: 1. Press the key 2. Use the key to scroll the pages until the next page is visualised: Enter user password 00000 3. Press the key 4. Use the key to compose the password. 5. Confirm the password by pressing the key 6. Press the key to scroll the pages of the MENU Pump hour counter - Used to visualise the operating hours of the circulation pump (if connected). Hours 000000 Hour counter Compressor 1 000000 Compressor 2 000000 Hour counter Compressor 3 000000 Compressor 4 000000 19
History 0000 AL000 Date 00/00/00 h00:00 Sp 07.0 T. In 05.0 T. U1 12.3 T.U2 07.3 - History : n of the event memorised - Date : - Hour : - Sp : Set-point - T.In : input temperature - T.U1 : output temperature compressor 1 - T.U2 : output temperature compressor 2 - Al : Code of the triggered alarm. Enter maintenance password 0000 - Pump hour counter: - Used to set the threshold for programmed maintenance. Threshold 002x1000 Reset N 000000 Compressor 1 hour counter: - Used to set the threshold for programmed maintenance. Threshold 008x1000 Reset N 000000 Compressor 2 hour counter: - Used to set the threshold for programmed maintenance. Threshold 008x1000 Reset N 000000 Compressor 3 hour counter: - Used to set the threshold for programmed maintenance. Threshold 008x1000 Reset N 000000 Compressor 4 hour counter: - Used to set the threshold for programmed maintenance. Threshold 008x1000 Reset N 000000 20
Filter Config. Enable Analog Inp. delay Dig. Inp. delay N 0s 0s - Used to enable software filters on the values measured by the probes. Probe settings 1: 0.0 2: 0.0 3: 0.0 4: 0.0 5: 0.0 6: 0.0 - Used to adjust the probe off-sets. Compressors enabled: C1:Y C2:Y C3:Y C4:Y - Compressors enabled: Used to disable one or more compressors so that they cannot be regulated. Erase history memory N Enter other maintenance password 0000 - Used to personalise the service passwords. 21
7.8 ALARMS AL:002 Antifreeze alarm - Low temperature of water from the evaporator(s). AL:016 Compressor 1 Thermal protection - Overheating of the compressor electric motor. AL:017 Compressor 2 Thermal protection - Overheating of the compressor electric motor. AL:018 Compressor 3 Thermal protection - Overheating of the compressor electric motor. AL:019 Compressor 4 Thermal protection - Overheating of the compressor electric motor. AL:005 Evaporator flow switch alarm - No flow to the evaporator. 22
AL:006 Condenser flow switch alarm - No flow to the condenser. AL:012 Circuit 1 fan thermal protection high pressure Warns of two possible faults: - Overheating of the fan electric motor with consequent shut-down of this. - High pressure in the refrigerating circuit (from the pressure switch) AL:013 Circuit 2 fan thermal protection high pressure Warns of two possible faults: - Overheating of the fan electric motor with consequent shut-down of this. - High pressure in the refrigerating circuit (from the pressure switch). AL:010 Circuit 1 low pressure alarm - Alarm, delayed on start-up, that cuts in in the event of low pressure in the refrigerating circuit. AL:011 Circuit 2 low pressure alarm - Alarm, delayed on start-up, that cuts in in the event of low pressure in the refrigerating circuit. AL:023 Transducer 1 high pressure alarm - High pressure in the refrigerating circuit (from transducer). AL:024 Transducer 2 high pressure alarm - High pressure in the refrigerating circuit (from transducer). 23
AL:004 Condenser pump thermal protection - Overheating of the pump electric motor. AL:003 Evaporator pump thermal protection - Overheating of the pump electric motor. AL:030 Probe 1 faulty or not connected - Probe fault. AL:031 Probe 2 faulty or not connected - Probe fault. AL:032 Probe 3 faulty or not connected - Probe fault. AL:033 Probe 4 faulty or not connected - Probe fault. AL:001 Major alarm from digital input - Not used. 24
AL:034 Probe 5 faulty or not connected - Probe fault. AL:035 Probe 6 faulty or not connected - Probe fault.. AL:036 Probe 7 faulty or not connected - Probe fault. AL:037 Probe 8 faulty or not connected - Probe fault. AL:040 Evaporator pump maintenance alarm - Maintenance threshold exceeded. AL:041 Compressor 1 maintenance alarm - Maintenance threshold exceeded. AL:042 Compressor 2 maintenance alarm - Maintenance threshold exceeded. 25
AL:043 Compressor 3 maintenance alarm - Maintenance threshold exceeded. AL:044 Compressor 4 maintenance alarm - Maintenance threshold exceeded. AL:050 Clock card alarm faulty or not connected - Clock card faulty. 26
8 WHAT TO DO IF. 8.1 THE UNIT DOES NOT START UP ( LED on the base board for mains power off, green LED on the address board off, other LEDs off) Check: a) that the mains power supply is present; b) that 24V ac is supplied downstream of the supply voltage transformer; c) that the 24V ac power connector is correctly fitted into the specific support (1 Fig A1); d) that the protection fuse is in good condition (8 Fig A1); e) that the telephone cable connecting the terminal (if present) to the base board is correctly connected (2 Fig A1). Figure A1 27
8.2 WHEN SWITCHED ON ONE OF THE FOLLOWING SITUATIONS OCCURS: alarm LED on LCD without any message buzzer on Check: a) that the EPROM has been fitted with the correct polarity; b) that the feet were not bent when fitting the EPROM; c) that the microprocessor chip has not been tampered with: if it has, call the service centre. 8.3 INCORRECT INPUT SIGNAL READINGS Check: a) that the probe wires have been correctly connected; b) that the base board and probes are correctly supplied. 8.4 EEPROM FAULT ALARM a) Contact Climaveneta. 8.5 DOUBTFUL INPUT ALARM SIGNAL Check: whether the input alarm signal is present by measuring the voltage between the common terminal IDCM1 or IDCM2 and the digital input terminal indicating the alarm idn : if there is a voltage of 24V ac, depending on the supply used by the digital inputs) the contact of the connected alarm device is open, meaning that there is an alarm. If the voltage is 0V ac the contact is closed and there is an alarm. 8.6 INCORRECT INPUT SIGNAL READINGS Check: a) that the probe wires are correctly connected; b) that there is no high thermal resistance between the sensor and any probe pocket. If necessary put conductive paste or oil into pockets to guarantee a good degree of temperature transmission. c) if there is a probe error, different checks are performed depending on the type of probe: Active temperature/humidity probes with 1V-1V signal: the probe signal is measured with a voltmeter between the terminals Bn and AVSS. Relation between voltage and size is of 10mVdc every C/%RH; Pressure probes: should there be errors in the readings of these probes check that: the analog inputs of these probes are set to accept 4-20mA signals; the scale limits set on the software correspond to the probes used; The voltage at the ends of the terminals Bn and AVSS is measured with a voltmeter to indirectly obtain the current of the probe signal, as the input has impedance of 50 ohm (I=V/R). The pressure value Ps sent by the probe is found as follows (FS=Top of Scale): Ps=(Vmis/50-0,04) x ((FSmax-Fsmin)/0,016+Fsmin. 28
the probe capillary is not blocked. NTC probes: the probe signal is an ohm value that depends on the temperature. Below are some resistance values at different temperatures. By disconnecting the probe from the interface input and measuring its resistance with a multimeter, the corresponding temperature value can be obtained by consulting the table. C Kohm C Kohm C Kohm -20 67.71 0 27.28 20 12.09-15 53.39 5 22.05 25 10-10 42.25 17 17.96 30 8.31-5 33.86 15 14.68 35 6.94 8.7 SERIAL CONNECTION WITH LOCAL SUPERVISOR DOES NOT FUNCTION Check: a) that the serial card is present and correctly connected; b) that the unit ID number has been correctly set; c) that the serial cables have been correctly connected. 8.8 CONNECTION WITH REMOTE SUPERVISOR DOES NOT FUNCTION Check: a) that the Gateway (if present) and modems are supplied with power; b) that the Gateway (if present) is correctly programmed; c) that the mode used complies with the one used by Climaveneta. 8.9 THE USER TERMINAL IS BLOCKED (IT DOES NOT RESPOND WHEN KEYS ARE PRESSED) Check: a) that the terminal has not been disconnected and re-connected to the base board without waiting for 2-3 seconds. In this case switch the controller off and back on with the terminal connected; b) that the EPROM has been correctly installed. 29
9 PROCEDURE FOR TERMINAL CONFIGURATION The first operation to perform when a network is started up for the first time or an I/O board is replaced, is to activate the procedure for terminal configuration. Before starting this procedure it is advisable to check that each I/O board and each terminal has been identified with the correct address established when the network was designed. It is important to remember that the address set with the dip-switches is only received if the device is reset. Moreover, it is advisable to perform global resetting of all network devices if a mistake has been made in the configuration of the addresses (more than one board with the same address). The configuration procedure must be activated from any terminal, which may also be connected temporarily only to perform configuration operations and removed upon completion. The following operations must be performed: A.SETTING THE ADDRESS OF EACH DEVICE USING THE DIP-SWITCHES With regard to the board addresses (that can be configured with the dip switches) the following addresses are valid: 1, 3, 5, 7 for the boards 2, 4, 6 for the boards 9, 10, 11, 12, 13, 14, 15 for the UNIT KEYBOARD 16 for the REMOTE KEYBOARD If there is a single unit the following addresses are used: 1 for the board 1 2 3 4 5 6 9 for the UNIT KEYBOARD OFF 1 2 3 4 5 6 7 8 16 for the REMOTE KEYBOARD B. BOARD CONNECTION (Fig A 2) 1 2 3 4 5 6 7 8 30
Figure A 2 C. I/O BOARD SELECTION The procedure is activated by pressing the keys 0-1-2 simultaneously for at least 5 seconds: If the display is the LCD type the following box is viewed: Terminal Adr: nn I/O Board Adr: 01 31
The field Terminal Adr is fixed and represents the address of the terminal which is being used, set using the dip-switches at the rear of the keyboard. The field I/O Board Adr initially views the address of the board currently connected to the terminal (it must be the same as the Master Board address). If the terminal is not connected to any board the message is viewed. This setting can be adjusted using the arrow keys to force the connection with another control. The values viewed during selection are the addresses of boards actually connected to the network. If no controller is currently active the message cannot be changed. Press the Enter key to exit from the first stage of the procedure, which is resident in the terminal, and access the proper terminal configuration box (see point D). D. SELECTING ASSOCIATED TERMINALS In LCD displays the boxes that can be viewed are: Terminal Config Press ENTER to continue Enter P:01 Adr Priv/Shared Trm1 09 Pr Trm2 16 Sh Trm3 None -- Ok? No Pr = Unit keyboard Sh = Remote keyboard In this box the Enter key moves the cursor from one field to another and the UP-DOWN keys change the current value of the field. The message P:01, in this case indicates that the I/O board with the address 01 has been selected. To exit from the configuration procedure and memorise, select the field Ok? No and use the cursor keys to select Yes then press Enter. To exit without memorising wait for 30 seconds without pressing any keys. 32
10 ATTACHMENTS ATTACHMENT A: ALARMS AL:002 Antifreeze alarm AL:003 Evaporator pump thermal protection AL:004 Condenser pump thermal protection AL:005 Evaporator flow switch alarm AL:006 Condenser flow switch alarm AL:010 Circuit 1 low pressure alarm AL:011 Circuit 2 low pressure alarm AL:012 High pressure circuit 1 fan thermal protection AL:013 High pressure circuit 2 fan thermal protection AL:016 Compressor 1 thermal protection AL:017 Compressor 2 thermal protection AL:018 Compressor 3 thermal protection AL:019 Compressor 4 thermal protection AL:023 High pressure from transducer 1 alarm AL:024 High pressure from transducer 2 alarm AL:030 Probe 1 faulty or not connected AL:031 Probe 2 faulty or not connected AL:032 Probe 3 faulty or not connected AL:033 Probe 4 faulty or not connected AL:034 Probe 5 faulty or not connected AL:035 Probe 6 faulty or not connected AL:036 Probe 7 faulty or not connected AL:037 Probe 8 faulty or not connected AL:040 Evaporator pump maintenance alarm AL:041 Compressor 1 maintenance alarm AL:042 Compressor 2 maintenance alarm AL:043 Compressor 3 maintenance alarm AL:044 Compressor 4 maintenance alarm AL:050 Clock card faulty or not connected alarm RESET M M M A A A/M A/M M M M M M M M M M M M M M M M M S S S S S S M = Manual A = Automatic A/M = Automatic for the first three, after which manual S = Signal 33
ATTACHMENT B: PARAMETERS DEFAULT Set parameters. Active set point --- C Chiller adjustment set point 7.0 C Heat pump adjustment set point 45.0 C Chiller adjustment secondary set point 7.0 C Heat pump adjustment secondary set point 45.0 C Programming parameters. Chiller set point minimum limit 5.0 C Chiller set point maximum limit 15.0 C Heat pump set point minimum limit 30.0 C Heat pump set point maximum limit 55.0 C Type of adjustment INPUT Input adjustment type PROPORT. Input adjustment integral time 600 s Output adjustment start-up time 0 s Output adjustment shut-down time 0 s Forced shut-down with output adjustment Summer 0.0 C Forced shut-down with output adjustment Winter 0.0 C External set point enabled No External set point minimum limit 0.0 C External set point maximum limit 6.0 C Temperature adjustment band 5.0 C Minimum time between pump switch-on and compressor switch-on 60 s Delay in pump shut-down 60 s On/off enabled from digital input No Summer/winter enabled from digital input No On/off enabled from supervisor No Summer/winter enabled from supervisor No Start defrost set point 3.0 bar Stop defrost set point 14.0 bar Defrost delay 1800 s Maximum defrost time 300 s Drip time 120 s Manufacturer parameters Type of unit configuration 00 N evaporators 2 Flow meter and serious alarm enabled Yes Probe B1 enabled Yes Probe B2 enabled Yes Probe B3 enabled Yes Probe B4 enabled No Probe B5 enabled No Probe B6 enabled No Probe B7 enabled No N compressors 4 Compressors rotation Yes Balanced rotation Yes Clock card installed Yes Configuration of digital input 1 Serious alarm Minimum compressors switch-on time 10 s Minimum compressors shut-down time 60 s Minimum time between start-up of different compressors 10 s Minimum time between start-up of same compressor 360 s Condensation control enabled No Type of condensation control STEPS Condensation set point --- Condensation differential --- 34
Maximum speed limit 10.0 V Minimum speed limit 0.0 V Minimum ON time 0 s Preventilation enabled No Preventilation set point --- Preventilation differential --- High pressure alarm from transducers set point 24.5 bar High pressure alarm from transducers differential 7.0 bar N low pressure alarm operations 3 Period of low pressure alarm operations 3600 s Period of low pressure alarm 120 s Bypass time of compressors thermal alarm 0 s Anti-freeze alarm set point 3.0 C Anti-freeze alarm differential 4.0 C Anti-freeze heating element set point 3.0 C Anti-freeze heating element differential 4.0 C Evaporator flow meter start up delay 10 s Evaporator flow meter operation delay 1 s Delay in condenser flow meter start up 10 s Delay in condenser flow meter running 1 s Cycle inversion valves logic N.C. Defrost sensor PRESSURE Type of defrost INDIVIDUAL Compressors off in defrost OUTPUT Communications speed with the supervisor system 1200 (RS485/RS422) Identification number with the supervisor system 1 Service parameters. Pump hour counter threshold 2x1000 Compressor 1 hour counter threshold 8x1000 Compressor 2 hour counter threshold 8x1000 Compressor 3 hour counter threshold 8x1000 Compressor 4 hour counter threshold 8x1000 Filters configuration enabled No Analog input delay filters 5 s Digital input delay filters 1 s Probe 1 calibration 0.0 Probe 2 calibration 0.0 Probe 1 calibration 0.0 Probe 2 calibration 0.0 Compressor C1 enabled Yes Compressor C2 enabled Yes Compressor C3 enabled Yes Compressor C4 enabled Yes 35
ATTACHMENT C: Input/Output Digital Inputs Unit Chiller TYPE 0 Unit Chiller/Heat Pump TYPE 2 n 1 Mayor alarm / Secondary set point Mayor alarm / Secondary set point 2 Evaporator flow switch Flow switch 3 Remote On/off Remote On/off 4 Pump thermal protection Remote Summer / Winter 5 Circuit 1 low pressure Circuit 1 low pressure 6 Compressor 1 thermal protection Compressor 1 thermal protection 7 Compressor 2 thermal protection Compressor 2 thermal protection 8 Circuit 2 low pressure Circuit 2 low pressure 9 Compressor 3 thermal protection Compressor 3 thermal protection 10 Compressor 4 thermal protection Compressor 4 thermal protection 11 Circuit 1:Fan thermal protection/high pressure Circuit 1:Fan thermal protection/high pressure 12 Circuit 2:Fan thermal protection/high pressure Circuit 2:Fan thermal protection/high pressure Analog Inputs n 1 Inlet temperature Inlet temperature 2 Outlet temperature 1 Outlet temperature 1 3 Outlet temperature 2 Outlet temperature 2 4 5 Circuit 1 high pressure Circuit 1 pressure probe 6 Circuit 2 high pressure Circuit 2 pressure probe 7 Remote Set point Remote Set point 8 Digital Outputs n 1 Pump contact Pump contact 2 Compressor 1 Compressor 1 3 Compressor 2 Compressor 2 4 Circuit 1 liquid solenoid valve Circuit 1 liquid solenoid valve 5 Circuit 1 reversing valve 6 Compressor 3 Compressor 3 7 Compressor 4 Compressor 4 8 Circuit 2 liquid solenoid valve Circuit 2 liquid solenoid valve 9 Circuit 2 reversing valve 10 Circuit 1 antifreeze resistor Circuit 1 antifreeze resistor 11 General fault General fault 12 Fan circuit 1 Fan circuit 1 13 Fan circuit 2 Fan circuit 2 Analog Outputs n 1 Fan speed circuit 1 Fan speed circuit 1 2 Fan speed circuit 2 Fan speed circuit 2 36
Digital Inputs Unit Chiller TYPE 6 Unit Chiller/Heat pump TYPE 7 N 1 Mayor alarm / Secondary set point Mayor alarm / Secondary set point 2 Evaporator flow switch Flow switch 3 Remote On/off Remote On/off 4 Pump thermal protection Remote Summer / Winter 5 Circuit 1 low pressure Circuit 1 low pressure 6 Compressor 1 thermal protection Compressor 1 thermal protection 7 Compressor 2 thermal protection Compressor 2 thermal protection 8 Circuit 2 low pressure Circuit 2 low pressure 9 Compressor 3 thermal protection Compressor 3 thermal protection 10 Compressor 4 thermal protection Compressor 4 thermal protection 11 Circuit 1 high pressure Circuit 1 high pressure 12 Circuit 2 high pressure Circuit 2 high pressure Analog Inputs n 1 Inlet temperature Inlet temperature 2 Outlet temperature 1 Outlet temperature 1 3 Outlet temperature 2 Outlet temperature 2 4 Condensing inlet temperature 5 6 7 Remote Set point Remote Set point 8 Digital Outputs n 1 Pump contact Pump contact 2 Compressor 1 Compressor 1 3 Compressor 2 Compressor 2 4 Circuit 1 liquid solenoid valve Circuit 1 liquid solenoid valve 5 6 Compressor 3 Compressor 3 7 Compressor 4 Compressor 4 8 Circuit 2 liquid solenoid valve Circuit 2 liquid solenoid valve 9 10 Circuit 1 antifreeze resistor Circuit 1 antifreeze resistor 11 General fault General fault 12 13 37
Climaveneta S.p.A. Via Sarson 57/c 36061 Bassano del Grappa (Vi) Italy Tel. +39 / 0424 509500 - Fax. +39 / 0424 509509 www.climaveneta.it