CSC-5S MANUEL D INSTALLATION ET DE FUNCTIONNEMENT MANUALE D INSTALLAZIONE E D USO ÅÃ ÅÉÑÉÄÉÏÅÃÊÁÔÁÓÔÁÓÇÓÊÁÉ ËÅÉÔÏÕÑÃÉÁÓ

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1 CSC-5S ENGLISH INSTALLATION AND OPERATION MANUAL MANUAL DE INSTALACIÓN Y FUNCIONAMIENTO INSTALLATIONS- UND BETRIEBSHANDBUCH MANUEL D INSTALLATION ET DE FUNCTIONNEMENT MANUALE D INSTALLAZIONE E D USO ÅÃ ÅÉÑÉÄÉÏÅÃÊÁÔÁÓÔÁÓÇÓÊÁÉ ËÅÉÔÏÕÑÃÉÁÓ ESPAÑOL FRANÇAIS ITALIANO DEUTSCH Do not perform installation work, without referring to our installation manual. No realice trabajos de instalación sin consultar el manual de instalación. Führen Sie die Installationsarbeiten, gemäß dem Installationshandbuch durch. N'effectuez jamais de travaux d'installation, sans vous référer au manuel d'installation. Non effettuare interventi d'installazione essere eseguiti attenendosi alle istruzioni contenute in questo manuale. Ìçí åêôåëåßôå åñãáóßåò åãêáôüóôáóçò ùñßò íá áíáôñýîåôå óôï åã åéñßäéï åãêáôüóôáóçò.

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3 EΛΛHNIKA ESPAÑOL DEUTSCH FRANÇAIS ENGLISH DANGER Immediate hazard which WILL result in severe injury or death. PELIGRO Riesgos inmediatos que PRODUCIRÁN lesiones personales graves e incluso la muerte. GEFAHR Unmittelbare Gefahrenquellen, die zu schweren Verletzungen oder zum Tod führen. DANGER Dangers instantanés de blessures corporelles sévères ou de mort. PERICOLO Pericolo immediato che PRODURRÀ ferite gravi o la morte. KINAYNO Άµεσος κίνδυνος που ΘΑ έχει ως αποτέλεσµα σοβαρές σωµατικές βλάβες ή θάνατο. WARNING Hazards or unsafe practices which COULD result in severe personal injuries or death. AVISO Riesgos o prácticas poco seguras que PODRÍAN producir lesiones personales e incluso la muerte. WARNUNG Gefährliche oder unsichere Anwendung, die zu schweren Körperverletzungen oder zum Tod führen kann. ATTENTION Utilisation dangereuse ou sans garantie de sécurité qui PEUT provoquer de sévères blessures personnelles ou la mort. AVVISO Pericoli o azioni pericolose che POTREBBERO avere come esito lesioni fisiche gravi o il decesso. ΠΡΟΕΙ ΟΠΟΙΗΣΗ Κίνδυνοι ή επικίνδυνες πρακτικές, οι οποίες ΜΠΟΡΕΙ να έχουν ως αποτέλεσµα σοβαρές σωµατικές βλάβες ή θάνατο. ITALIANO CAUTION Hazards or unsafe practices which COULD result in minor personal injury or product or property damage. PRECAUCIÓN Riesgos o prácticas poco seguras que PODRÍAN provocar lesiones personales de menor importancia o daños en el producto u otros bienes. VORSICHT Gefährliche oder unsichere Anwendung, die geringfügigen Personen-, Produkt- oder Sachschaden verursachen kann. PRECAUTION Utilisation dangereuse ou sans garantie de sécurité qui PEUT provoquer des blessures mineures ou des dommages au produit ou aux biens. ATTENZIONE Pericoli o azioni pericolose che POTREBBERO avere come esito lesioni fisiche minori o danni al prodotto o ad altri beni. ΠΡΟΣΟΧΗ Κίνδυνοι ή επικίνδυνες πρακτικές, οι οποίες ΜΠΟΡΕΙ να έχουν ως αποτέλεσµα την πρόκληση ελαφρών σωµατικών βλαβών ή καταστροφή περιουσίας.

4 HITACHI COOL UNIT No. TIMER MULTI INLET SET TEMP. OUTLET TEMP. PR. MPa LOCAL ABNML CHECK RUN/STOP UNIT SELECTION 20 mm MODE CHANGE / DISP.MODE RESET TIMER OPTION GROUP TEMP. CHECK 20 mm 2

5 SAFETY SUMMARY. SAFETY SUMMARY DANGER: DO NOT pour water into the central station. This product is equipped with electrical parts. If poured, it will cause a serious electrical shock. WARNING: DO NOT perform installation work and electrical wiring connection by yourself. Contact your distributor or dealer of HITACHI and ask them for installation work and electrical wiring by service person. CAUTION: DO NOT install the indoor unit, outdoor unit, central station and cable at such places as; - where there is oil vapor and the oil is dispersed - where the hot springs are near (in a sulfuric environment) - where generation, flowing, staying or leaking of flammable gas is detected - where the sea is near (in the salty environment) - an acid or alkaline environment DO NOT install the chiller unit, central station, and cable within approximately 3 meters from strong electromagnetic wave radiators such as medical equipment. In case that the central station is installed in a place where there is electromagnetic wave radiation, shield the controller and cables by covering with the steel box and running the cable through the metal conduit tube. In case that there is electric noise at the power source for the indoor unit, provide a noise filter. ENGLISH 2. INSTALLATION WORK CAUTION: Follow the national regulations for the right assembly of the CSC-5S in the wall. 2.. SELECTION OF INSTALLATION PLACE Select a suitable place for handling and determine the installation place of the controller with the customer s acceptance. Do not install the central station at such places as; - where children can touch - where the air from the air conditioner is directly discharged 2.2. BEFORE INSTALLATION This packing contains the following parts: Central Station for operation control 2 screws M4x6L For fixing the Holding Bracket onto the wall

6 2 INSTALLATION WORK 2.3. INSTALLATION SPACE In case of installing the controllers in vertical line keep a distance more than 50mm between the controllers vertically. If the distance is insufficient, the front cover of the controller can not open wide enough More than 50mm.Insert the edge of the screwdriver into the slot parts at the bottom of the holding bracket, push and turn the screwdriver and remove the controller from the holding bracket. Do not insert the screwdriver into the nail near the slot part, or the nail will be damaged. Control Part Power Supply Part Figure Seen from Bottom Side Slot Part Slot Part Approx. 6mm Screw Driver Screw Driver Nail 2. Attach the power supply part to the switch box. Do not run the power line and the control line through the same conduit tube. Power Supply Screw (x2) Power Line Control Line 3. Attach the control part onto the power supply part. At first, attach the upper side, and then the lower side. Switch Box with Cover (Field-Supplied)

7 ELECTRICAL WIRING 3 3. ELECTRICAL WIRING ENGLISH 3.. ELECTRICAL WIRING Max.8 Chiller Units Control Timer CSC-5S Chiller Units Chiller Units (Option) Connector Terminal TB2 CN TB H-LINK Control Timer's Accessory Cable(m) FG Power Supply AC220~240V To TB2 of Other Controller Twist Pair Cable P-0.75mm RECOMMENDABLE WIRING TYPES Japan Cable Industrial Associations Hitachi Cable Co., Ltd. Japan Cable Co., Ltd. Notes JKEV KPEV KNPEV Non-Shielded JKEV-S KPEV-S KNPEV-S Shielded (Copper Foil) JKEV-SB KPEV-SB KNPEV-SB Shielded (Twisted) NOTE: - The cable always use the Twist-Pair Cable. - Connection Cable: Field-Supplied - Connection Cable: 0.75mm 2 Twisted-Pair Cable - Max. Wiring Length: 000m (totally) - Either of Shielded and Non-shielded can use SETTING OF DIP SWITCH SETTING OF DIP SWITCHES (DSW AND DSW2) - Set the dip switches (DSW and DSW2) as follows. It is necessary to set address setting in case of connecting more than 2 controllers (max. 8 controllers).

8 4 ELECTRICAL WIRING Dip Switch Setting DSW DSW2 Pin No Contents of DSW Setting Setting ON OFF For Address Setting For Checking Connection Control Mode 2 Output Signal Time for Transmission Refer to the table below. Not Available Multiple Control Available Individual Control 60 sec. 30 sec Remarks It is necessary to set these switches in case of connecting more than 2 units. H-Link (Chiller~CSC-5S) Setting of DSW (For Address Setting) Address (Factory setting) ON Address 2 Address 3 Address 4 ON ON ON Address 5 Address 6 Address 7 Address 8 ON ON ON ON CAUTION: - Incorrect connection will cause controller damage. - If wiring work is performed by providing power supply to controller, the controller may be broken. Check to ensure that power supply for controller and chiller unit is not provided. - Do not run all signal cables together with power supply cable and other signal cables. Noise from these cables may cause malfunction of the controller and chiller unit. If signal cables run through together with power supply cable and other signal cables, keep a distance more than 5 cm between signal wiring and others or run the signal cables through the metal conduit tube and earth the either end of tube. - If power supply cable is connected to terminal board for transmission signal and power supply voltage is applied by incorrect connection, the fuse is broken to protect printed circuit board. In this case, this controller is possible to operate without fuse by setting No.2 pin of DSW3 at the ON side. DSW3 (Fuse Recover) ON OFF 2 - Set the same address No. for remote controller and control timer. - Set the DSW of the control timer to factory setting (OFF condition), except the address. - Set the availability of the control timer (ON/OFF) to each chiller unit connected in the remote controller. For details, please check the Timer Operation Procedure. - For control timer operation, please refer to the Installation & Operation Manual Control Timer attached in the controller PSC-5T.

9 GROUP REGISTRATION 5 4. GROUP REGISTRATION ENGLISH Indication after turning ON power switch If group registration is not performed, the indication is changed as follows. UNIT No After Checking Connection UNIT No This indicates the connected unit No. after checking connection. In Case of Controller Address In case that the address of the controller is not set at and group registration is not performed. (It is impossible to operate the unit without performing group registration.) 4.. GROUP REGISTRATION PROCEDURE Changing to Group Registration Mode. Press the GROUP switch for more than 3 seconds when all the units are stopped. If the mode is changed to group registration mode, the indication is changed as follows. Group registration mode is not available during operation. If this procedure is performed, NO FUNC. is indicated on the LCD of controller. UNIT No In Case of Controller Address or During Changing Registration Mode First Digit UNIT No In case that the address of the controller is not set at and group registration is not performed. Second Digit Third Digit 2. Set the min. controlled unit No. by pressing or switch (third digit). 3. Press GROUP switch again. UNIT No Set the max. controlled unit No. by pressing or switch (first digit). 5. Press the GROUP switch for more than 3 seconds. The mode is changed from group registration mode to the normal mode.

10 6 GROUP REGISTRATION CAUTION: - If RESET switch is pressed or any switch is not pressed for more than 30 seconds, group registration mode is changed to the normal mode automatically. In this case, group registration is not available. - Check to ensure that the same unit No. setting is not performed when two or more controllers are connected. In this case, it is necessary to set the controller address No. from the smaller unit No. If this procedure is not performed, the alarm code E002 may occur. At that time, correct address No. of the controller having E002 alarm code at first. Example. Set address on controller (add.) for units Nos. to Set address 2 on controller (add. 2) for units Nos. 4 to After setting group registration, E002 alarm occurs in the controller address No Correct the setting of the controller address No. 2 unit at Nos. 5 to E002 alarm is cleared. Controller Address Controller Address 2 Chiller Unit

11 NAME OF EACH PART 7 5. NAME OF EACH PART ENGLISH Liquid Crystal Display Section The figure below shows all the indications for reference.the actual display during operation is different. Indication of Operating Unit (Page 0) Indication of Individual Control (indicated during individual control) (Page 8) Timer Indication (Page 6) Indication of Emergency Stop (Page 7) Indication of Each Unit Operation (Page 2) Indication of Multiple Units Control (indicated during multiple units control) (Page 8) Demand Indication (Page 7) Indication of No Function (indicated in case of incorrect operation) Indication of Operation Mode (Page 2) RUN Lamp (Red) (Page 0, 5) RUN/STOP Switch (Page 5) Operation Mode Change Switch (Page 2) Air Conditioning / Heat Storage Switch (Page 2) Timer Selection Switch (Page 6) Option Selection Switch (Page 8, 9) Group Setting Switch (Page 8) HITACHI RUN/STOP MODE CHANGE / TIMER COOL UNIT No. TIMER MULTI INLET SET TEMP. OUTLET TEMP. PR. MPa LOCAL ABNML CHECK OPTION GROUP Display Changeover Switch (Page 4) DISP.MODE TEMP. UNIT SELECTION RESET CHECK Temperature Setting Switch (Page 3) Indication of Setting Temperature (Page 0, 3) Indication of Inlet / Outlet Temperature (Page 3) Alarm Indication (Page 7) Local Indication (Page 7) Unit Selection Switch (Each Page) Reset Switch (Page 8, 8) Check Switch (Page 3, 20) This switch is used only for servicing. Do not touch this switch except for servicing.

12 8 CONTROLS Operation Switch Section The above figure shows the central station with the cover opened. When opening the cover, pull the cover toward the arrow direction. 6. CONTROLS Individual Control Multiple-unit Control - is indicated at the display panel during this control. There are two controls available. One is group registration (see the item Group Registration Procedure ).The control enables each unit control. The other is the simultaneous group control. By pressing the unit switch, the units Nos. are changed. AA indicates all the units which were registered. - The contents which are different depending unit except RUN lamp are not indicated during indicating unit No. AA. (For example, Operation/Heat Storage Mode, Setting Temperature, Local, etc.) - Option setting is possible by selecting the following setting. (Refer to option setting procedure.) ON/OFF Differential Setting Option - MULTI is indicated at the display panel during this control. The unit which was set as group registration is automatically ON/OFF controlled by detecting the set temperature and sensing temperature. (If UNIT SELECTION switch is pressed during normal mode, NO FUNC. is indicated.) - The control for the chillers up to 8 units are performed by sensing the minimum water temperature during cooling and the maximum water temperature during heating respectively. - In case of inlet (outlet) water temperature control, the chiller units are controlled by the minimum / maximum inlet (outlet) water temperature detected in the same group units. - Option setting is possible by selecting the following setting. (Refer to the option setting procedure on page 9) ON/OFF Differential Setting Option Selecting Inlet or Outlet Water Temperature Control Option 2 Selecting Availability of Capacity Control for the Unit which is Stopped Finally Option 3 Selecting Availability of Pump ON/OFF Control of the Unit which is Stopped by Thermostat Option 4 NOTE: - This control function is selected by setting No. pin of the DSW2 switch at ON or OFF side. This setting is necessary before the power is supplied. (This setting change is not available after supplying the power.) - If this setting change is required, contact your local installer.

13 OPERATION PROCEDURE 9 7. OPERATION PROCEDURE ENGLISH 7.. GROUP REGISTRATION PROCEDURE HITACHI COOL UNIT No. TIMER MULTI INLET SET TEMP. OUTLET TEMP. PR. MPa LOCAL ABNML CHECK RUN/STOP UNIT SELECTION MODE CHANGE / DISP.MODE RESET, 3, 5 TIMER OPTION GROUP TEMP. CHECK 2, 4 NOTE: If the setting of group registration is changed, perform this procedure from the first step during unit stoppage. Supply power to the remote control switch. Switch ON the main power switch, and energize the oil heater to protect compressor for 2 hours before operation.. Press the GROUP switch for more than 3 seconds. Third digit figure is flickered. (This digit indicates the minimum unit No. controlled by this controller.) In case of the address of the controller is not set and group registration is not performed, the controller switch indicates nothing except third digit. UNIT No. Third Digit Second Digit First Digit UNIT No. 2. By pressing the UNIT SELECTION switch, the unit confirmed to connect is indicated sequentially. (Set the minimum unit No.)

14 0 OPERATION PROCEDURE 3. Press the GROUP switch again. The first digit is flickered (the maximum unit No. is indicated at first). UNIT No. 4. By pressing the UNIT SELECTION switch, the unit confirmed to connect No. bigger than minimum unit No. is indicated sequentially. (Set the maximum unit No.) UNIT No. 5. By pressing the GROUP switch for more than 3 seconds again, the group setting is registered. UNIT No. NOTE: - If RESET switch is pressed or any switch is not pressed for more than 30 seconds, group registration mode is changed to the normal mode automatically. (During this time, group registration is not set.) - Group registration is not available during unit operation. If this procedure is performed, NO FUNC. is indicated. - Check to ensure that the same unit No. setting was not performed in case of connecting two or more controllers. In this case, alarm code E002 may occur at the controller having bigger address. At that time, set correct address No. to the controller having E002 alarm code SELECTION FOR OPERATED UNIT AND UNIT STATE MONITORING The controller controls the maximum 8 chiller units for individual or simultaneous. It is possible to operate the unit and check operating state of the units. NOTE: At the time to select the unit, unit No. is changed by pressing UNIT SELECTION switch. However, the unit not performed for group registration is not indicated. HITACHI RUN Lamp COOL UNIT No. TIMER MULTI INLET SET TEMP. OUTLET TEMP. PR. MPa LOCAL ABNML CHECK RUN/STOP UNIT SELECTION MODE CHANGE / DISP.MODE RESET TIMER OPTION GROUP CHECK TEMP. Operating State of Each Unit (The figure in next page shows the case of individual control, air-conditioning mode and setting temperature of 20 C.)

15 OPERATION PROCEDURE. Press UNIT SELECTION switch.by pressing, the target units are changed as follows. In case of indicating AA, all units are operated simultaneously. Unit No. is changed. The figure below shows the case of selecting unit No.4. ENGLISH AA NOTE: This procedure is not performed in multiple unit control. The registered unit No. is indicated. 2. If the unit is selected, current operating state of each unit is indicated. Symbol shows the state of unit as follows. OFF Stoppage ON Operation Flicker Alarm Indication of RUN lamp shows as follows. OFF Stoppage for All Units ON Operation for More Than Unit Flicker Alarm for More Than Unit Operating State of Each Unit (The figure below shows the case of individual control, airconditioning mode and setting temperature of 20 C) COOL UNIT No. SET TEMP. Operating State of Each Unit (The above figure shows the case of operation for No. to No.4 units.) In case of unit No. AA, indication of operation mode, setting temperature, air condition/heat storage and local are displayed only when they are the same in the group. NOTE: In case of multiple-unit control is selected and UNIT SELECTION switch is pressed, NO FUNC. is indicated. (Unit No. is always indicated AA when all the units are operated simultaneously in normal mode.)

16 2 OPERATION PROCEDURE 7.3. OPERATION MODE SETTING PROCEDURE HITACHI COOL UNIT No. TIMER MULTI INLET SET TEMP. OUTLET TEMP. PR. MPa LOCAL ABNML CHECK RUN/STOP UNIT SELECTION Operation and Function - COOL: Cooling Operation by Chilled Water - : Heating Operation by Hot Water - H. RCV. (Heat Recovery): This operation is not available. 2 MODE CHANGE / DISP.MODE RESET TIMER OPTION GROUP CHECK TEMP. 3. Select the unit by pressing UNIT SELECTION switch. (Refer to item of page.) NOTE: This procedure is not performed during multiple-unit control. The above figure shows the case of selecting unit No Press MODE CHANGE switch. The operation mode is changed according to the following order. COOL UNIT No. SET TEMP. The above figure shows the case when operation is selected. 3. / H. STRG switch. NOT AVAILABLE FUNCTION NOTE: - The above instruction shows the case of operating No.4 unit. Operate another unit based on the same procedure. In case of selecting all the units, select AA. - Some functions are not available depending on models. Contact installer for details. - Operation mode setting is not available during operation. - In case of multiple-unit control is selected and UNIT SELECTION switch is pressed, NO FUNC. is indicated. Unit No. is always indicated as AA when all the units are operated simultaneously, in normal mode.)

17 OPERATION PROCEDURE TEMPERATURE SETTING PROCEDURE ENGLISH HITACHI COOL UNIT No. TIMER MULTI INLET SET TEMP. OUTLET TEMP. PR. MPa LOCAL ABNML CHECK RUN/STOP UNIT SELECTION MODE CHANGE / TIMER OPTION GROUP DISP.MODE TEMP. RESET CHECK CHECK 2 CAUTION: - Do not touch CHECK switch. - CHECK switch is for servicing only. - If the mode is changed to checking mode by incorrect operation, the mode is changed to previous mode by pressing RESET switch.. Select the unit by pressing UNIT SELECTION switch. (Refer to item of page. ) NOTE: This procedure is not performed during multiple-unit control. The above figure shows the case of selecting unit No Press TEMP switch and set required temperature. Press switch at once, setting temperature is increased by C. Press switch at once, setting temperature is decreased by C. Temperature setting range is different according to the unit. The above figure shows the case of setting temperature at 2 C. NOTE: Setting temperature is changed continuously if pressing the switch is maintained. In case of the multiple-unit control is selected and UNIT SELECTION switch is pressed, NO FUNC. is indicated. Unit No. is always indicated AA when all the units are operated simultaneously, in normal mode.

18 4 OPERATION PROCEDURE 7.5. CHANGING DISPLAY MODE PROCEDURE HITACHI COOL UNIT No. TIMER MULTI INLET SET TEMP. OUTLET TEMP. PR. MPa LOCAL ABNML CHECK RUN/STOP UNIT SELECTION MODE CHANGE / DISP.MODE RESET 2 TIMER OPTION GROUP TEMP. CHECK Select the unit by pressing UNIT SELECTION switch. (Refer to item of page..) NOTE: This procedure is not performed during the multipleunit control. The above figure shows the case of selecting unit No.4. Press DISP. MODE switch. Indication of setting temperature is automatically changed as follows. COOL UNIT No. INLET TEMP. The display is changed according to the following order; Inlet Water Light Off Outlet Temperature Light Off The above figure shows the case of indicating inlet temperature. NOTE: In case of the multiple-unit control is selected and UNIT SELECTION switch is pressed, NO FUNC. is indicated. Unit No. is always indicated AA when all the units are operated simultaneously, in normal mode.

19 OPERATION PROCEDURE OPERATION PROCEDURE ENGLISH HITACHI RUN Lamp COOL UNIT No. TIMER MULTI INLET SET TEMP. OUTLET TEMP. PR. MPa LOCAL ABNML CHECK RUN/STOP UNIT SELECTION 2 MODE CHANGE / DISP.MODE RESET TIMER OPTION GROUP CHECK TEMP.. Select the unit by pressing UNIT SELECTION switch. (Refer to the item of page.) NOTE: This procedure is not performed during the multiple-unit control. 2. Press RUN/STOP switch. If the selected unit is operating, the unit is stopped after pressing. If the unit has been stopped, the unit starts to operate after pressing. If AA is selected, the unit is operated as follows by pressing RUN/STOP switch. In Case of Operation more than Unit (RUN lamp is ON.) All the units are stopped. In Case of Stoppage of All The Unit (RUN lamp is OFF.) All the units are started operation. The above figure shows the case of selecting unit No.4. Turned ON The above figure shows the case of operating unit No.4. NOTE: - Above instruction indicates the case of operating No.4 unit. Operate another unit based on the same procedure. In case of selecting all the units, select AA. - In case of multiple-unit control is selected and UNIT SELECTION switch is pressed, NO FUNC. is indicated. Unit No. is always indicated AA when all the units are operated simultaneously, in normal mode.) - In the case that power is supplied to only CSC-5S after power failure, the chiller unit is stopped for safety. Therefore, perform the operation once again after power supply. - In the case that the chiller unit is restarted by the CSC-5S after power supply, restart the chiller unit more than 30 sec. after power supply. In the case that it is starting operation within 30 sec, the display of CSC-5S becomes starting but the chiller unit is stopping still. In this case, restart the chiller unit more than 2 sec. after stop operation. - Connection check is automatically performed by CSC-5S after power supply. (Unit Nos. from to 0 are indicated on the liquid crystal.) During this connection check, wait for a while since operation by CSC-5S is not available.

20 6 OPERATION PROCEDURE 7.7. TIMER OPERATION PROCEDURE HITACHI COOL UNIT No. TIMER MULTI INLET SET TEMP. OUTLET TEMP. PR. MPa LOCAL ABNML CHECK Operation and Function: This is the function to set ON/OFF operation by sensing the signal from connected optional control timer (PSC-5T). RUN/STOP UNIT SELECTION MODE CHANGE / DISP.MODE RESET TIMER OPTION GROUP TEMP. CHECK. Select the unit by pressing UNIT SELECTION switch. (Refer to chapter of page. 7.) NOTE: This procedure is not performed during multiple control. The above figure shows the case of selecting unit No Press TIMER switch. - Indication of TIMER appears or disappears alternatively. - The timer controlled unit is operated according to the set schedule. COOL UNIT No. TIMER SET TEMP. Turned ON The above figure shows the case of operating unit No.4. NOTE: - The above instruction shows the case of operating No.4 unit. Operate another unit based on the same procedure.in case of selecting all the units, select AA. - In case of multiple-unit control is selected and UNIT SELECTION switch is pressed, NO FUNC. is indicated. Unit No. is always indicated AA when all the units are operated simultaneously, in normal mode.) - Set the same address No. for remote controller and control timer.

21 OPERATION PROCEDURE OTHER INDICATIONS ENGLISH Normal Indications LOCAL: LOCAL is indicated when setting local at the chiller unit. Setting is not available to change from controller during this indication. Contact to installer for details. : This function is not available. EMG.(Emergency) STOP: EMG. STOP is indicated when the signal is input at external input 2 port on this controller. Contact to installer for details. LOCAL Alarm Indications Abnormal Condition: - If any unit occurs under an abnormal condition, operation lump is flickered. - ABNML is indicated on the liquid crystal display. - Indication of the unit having an alarm code is flickered. - Unit No., alarm code and nominal indication is indicated alternatively. - If alarm code occurs in multiple-control units, unit No. and alarm code are indicated from the unit having smaller No. sequentially. - Check the alarm code, and contact your installer. ABNML Power Failure: - All the indications are disappeared. - If the unit is stopped by power failure, the unit does not start automatically even if the power is supplied. Operate the unit again. - If the unit is stopped by an instantaneous power failure within 2 seconds, the unit is restarted automatically. Noise: - All the indication is disappeared, and the unit is stopped in some cases. This means the microprocessor is activated to protect equipment from the effect of noise. Operate the unit again.

22 8 OPERATION PROCEDURE 7.9. OPTION SETTING PROCEDURE HITACHI COOL UNIT No. TIMER MULTI INLET SET TEMP. OUTLET TEMP. PR. MPa LOCAL ABNML CHECK RUN/STOP UNIT SELECTION MODE CHANGE / TIMER OPTION GROUP DISP.MODE TEMP. RESET CHECK Option. Select the unit by pressing the UNIT SELECTION switch. (Refer to chapter of page. 7.) NOTE: This procedure is not performed during multiple-unit control. COOL UNIT No. MULTI The above figure shows the case of selecting unit No.. 2. Press the OPTION switch for more than 3 seconds.indication of option setting is flickered. COOL UNIT No. MULTI By pressing the OPTION switch, the option No. is changed sequentially respectively. Option No. is shown in Table of page 9. COOL UNIT No. MULTI Option No. 4. Press the TEMP. switch and select the option setting. (In case of option No.2, select Inlet or Outlet.) COOL UNIT No. MULTI Option Setting 5. Option setting is registered by pressing the OPTION switch for more than 3 seconds.

23 EXTERNAL OUTPUT AND INPUT FUNCTION 9 NOTE: - In case of individual control, option No. only is available. - If RESET switch is pressed or any switch is not pressed for more than 30 seconds during option setting procedure, option setting mode is changed to the normal mode without option setting. (A setting is not registered in this case.) - Option setting is not available during operation. If OPTION switch is pressed during operation, is indicated. - If UNIT SELECTION switch is pressed in multiple-unit control, is indicated. - Unit No. is always indicated as AA when all the units are operated simultaneously, in normal mode. Table. Option Setting ENGLISH Option No. Setting Content of setting Setting at shipping 2 Set Differential 2 Degree Option 3 Set Differential 3 Degree 4 Set Differential 4 Degree Option 2 Inlet Inlet Temperature Control Outlet Outlet Temperature Control 0 Available for Capacity Control to the Unit Stopped Finally Option 3 Not Available for Capacity Control to the Unit Stopped Finally Option 4 0 The pump is started after Thermo-OFF. The pump is stopped after Thermo-OFF.* * The water pump at the final stop still runs even under thermo-off. Individual Control Multipleunit Control 8. EXTERNAL OUTPUT AND INPUT FUNCTION This controller (CSC-5S) has a function of 2 channel External Input and Output respectively. Connection is shown below. and 2 pin of CN2 External Input Simultaneous Operation and Stoppage Input (Level Signal) 2 and 3 pin of CN2 External Input 2 Emergency Stoppage Input (Level Signal) and 2 pin of CN3 External Output Simultaneous Operation Output (Level Signal) and 3 pin of CN3 External Output 2Simultaneous Alarm Output (Level Signal) Cable with Connecctor (Option): PCC-A CN2 CN RY Non-Voltage A Contact Input RYa Cable More Than 0.5mm 2 (Field-Supplied, Max. Length: 70m) Use optional wiring assembly with the connector (PCC-A) to connect external input and output. The suitable relay for the external output is of Omron MY type.

24 20 CHILLER CONTROLLER CHECKING PROCEDURE 9. CHILLER CONTROLLER CHECKING PROCEDURE Checking mode indicates 3 kinds of contents as follows. - Operating condition data, Chiller unit ROM No. and controller ROM No. etc. are indicated. Refer to the table below in detail. - The content of abnormal stoppage including activation of safety devices is indicated up to max. 0 data. - Capacity control state is indicated. Changing to Checking Mode Procedure. Press the CHECK switch for more than 3 seconds. The mode is changed to checking mode. (Indicate various data) 2. By pressing the CHECK switch, indication is changed according to the following order. various data alarm history capacity control state Indication of Various Data. By pressing the TEMP. switch, the following contents are indicated. Indication code Indication Content Unit Remark CPd ~ C6Pd Discharge Pressure MPa CPs ~ C6Ps Suction Pressure MPa Ctd ~ C6td Discharge Gas Temperature C Cts ~ C6ts Suction Gas Temperature C Ctr ~ C6tr Liquid Refrigerant Temperature C CEL Inlet Water Temperature C CoL Outlet Water Temperature C CcoL Individual Water Piping Outlet Temperature tsc Setting Temperature of Chilled Water C tsh Setting Temperature of Hot Water C tscd Setting Analog Temperature of Chilled Water C tshd Setting Analog Temperature of Hot Water C df Differential Setting C ta Ambient Temperature C Crno CvEr rno ROM No. of Chiller Unit Version No. of Chiller Unit ROM No. of Controller C Indicate Max. 6 Refrigerant Circuit Data The display contents depend on chiller unit. NOTE: By pressing the TEMP. switch once, indication code is indicated, and by pressing the TEMP. switch again, indication content is indicated. If the TEMP. switch is pressed, indication is changed in the opposite order. 2. By pressing the UNIT SELECTION switch, the unit No. is changed and each unit data is indicated. (In case of changing the indicated unit, indication is started from CPd.)

25 CONTROLLER RESET PROCEDURE 2 Alarm History Indication Previous alarm occurrence data is indicated. The data is indicated up to 0 data by pressing the UNIT SELECTION switch. ENGLISH Capacity Control State Indication Capacity control state is indicated. Individual Control: Capacity of each unit is indicted by each pressing the UNIT SELECTION switch. Multiple-unit Control: Total Capacity of group is indicated. NOTE: If RESET switch is pressed, or any switch is not pressed for more than 30 seconds, Indication is changed to the normal mode. 0. CONTROLLER RESET PROCEDURE Reset Procedure In the case that group registration or option setting data is required to clear or checking of connection between the controller and the chiller units is required again, the setting of controller can be cleared by the following procedure. (It is impossible to clear some part of setting in this case.). Changing to Self-Checking Mode By pressing the UNIT SELECTION UNIT SELECTION and MODE CHANGE switches simultaneously when all the groups of units are stopped, the mode is changed to self-checking mode. If one unit is operated, is indicated and mode is not changed to self-checking mode. After changing to the self-checking mode, self-checking is started. By pressing the UNIT SELECTION UNIT SELECTION and MODE CHANGE switches simultaneously again until 02 test start (Checking for Switch and DSW), the mode is changed to EEPROM checking mode. PR. COOL SET TEMP. MPa LOCAL OUTLET ABNML COOL UNIT No. TIMER MULTI INLET SET TEMP. OUTLET TEMP. PR. MPa LOCAL ABNML CHECK Press the UNIT SELECTION, UNIT SELECTION and MODE CHANGE switches simultaneously until 02 test start (Checking for Switch and DSW), the mode is changed to 06 (EEPROM Check) mode. UNIT No. TIMER MULTI INLET TEMP. CHECK EEPROM Check

26 22 SELF-CHECKING MODE NOTE: In case of the UNIT SELECTION, UNIT SELECTION and MODE CHANGE switches are not simultaneously pressed again, self-checking continues. If the self-checking mode is required, refer to the self-checking procedure of page EEPROM Initialization If the EEPROM initializing mode is started, the indication is changed as follows. By press the RESET switch at this moment, indication 06 is changed from flickering to light ON and EEPROM is cleared. (If EEPROM is not cleared, press the CHECK switch.) After pressing the switch, indication is changed automatically as follows, and the mode is changed to connection checking mode. RESET or CHECK To Connection Checking Mode By pressing the RESET switch, flickering of 06 is changed to light ON. It takes 30 to 60 seconds, to initialize EEPROM. UNIT No. NOTE: If it is not cleared, when connection check is not set, the mode is changed to the normal mode.. SELF-CHECKING MODE. Changing to Self-Checking Mode By pressing the UNIT SELECTION, UNIT SELECTION and MODE CHANGE switches simultaneously when all the groups of units are stopped, the mode is changed to self-checking mode. If one unit is operated, is indicated and mode is not changed to self-checking mode.

27 SELF-CHECKING MODE 23 Indication on the liquid crystal display is changed as follows. I. Checking for Liquid Crystal Display V Checking for External Output ENGLISH LOCAL PR. COOL UNIT No. TIMER MULTI INLET SET TEMP. OUTLET TEMP. PR. MPa LOCAL ABNML CHECK II Checking for RUN Lamp VI Checking for External Input OUTLET ABNML III Checking for Switch and DSW Input VII EEPROM Check UNIT No. TIMER MULTI INLET TEMP. CHECK Normal input number Is indicated. IV Checking for Transmission Circuit VIII Checking for IC for Watch-dog Timer COOL SET TEMP. MPa Self-checking is completed. (changed to the normal mode or connection checking mode) 2. Checking Content I. Checking for Liquid Crystal Display. Checking is performed automatically. II. Checking for RUN Lamp RUN lamp is flickered twice. III. Checking for Switch and DSW Input. Press all the switch and turn DSW ON or OFF alternatively, check that the indicated number is 29 as a normal input number. IV. Checking for Transmission Circuit. Checking is performed automatically. V. Checking for External Output. Prepare a cable assembly as shown in the right figure and connect this cable to CN3. Checking proceeding is as follows. Turning ON LED for 2 seconds Turning ON LED2 for 2 seconds Turning OFF LED and LED2 for 2 seconds Turning ON LED and LED2 (LED is maintained to light ON until pressing the CHECK switch.)

28 24 SELF-CHECKING MODE VI. Checking for External Input Prepare the cable assembly as shown in the right figure and connect this cable to CN2. Checking proceeding is as follows. By turning switch ON, LED is turning ON By turning switch OFF and switch 2 ON, LED2 is turned ON By turning switch and 2 ON, LED and LED2 are turned ON (LED is maintained to light ON until pressing the CHECK switch.) VII.Checking for EEPROM Refer to EEPROM clearing procedure of page 22. VIII.Checking for IC for watch-dog timer Checking is performed automatically. 2 3 CN3 Resistance LED LED2 Switch 2 3 CN2 Switch 2 NOTE: - By pressing the UNIT SELECTION, UNIT SELECTION and MODE CHANGE switches simultaneously until starting 02 test (Checking for Switch and DSW), the mode is changed to EEPROM checking mode External Output and 05 External Input checks are changed to the next procedure by pressing the CHECK switch.

29 RESUMEN DE SEGURIDAD. RESUMEN DE SEGURIDAD PELIGRO: NO vierta agua en la estación central. Este producto está equipado con piezas eléctricas. Si se vierte agua, se producirá una descarga eléctrica grave. AVISO: NO realice por su cuenta los trabajos de instalación y cableado eléctrico. Póngase en contacto con su distribuidor o representante de HITACHI y solicítele los servicios del personal de instalación y cableado eléctrico. PRECAUCIÓN: NO instale la unidad interior, la unidad exterior, la estación central ni el cable en los siguientes lugares: - donde haya niebla de aceite y aceite dispersos; - cerca de fuentes de calor (en un entorno sulfúrico); - donde se detecte generación, flujo, existencia o fugas de gas inflamable; - cerca del mar (en entornos salinos); - en entornos ácidos o alcalinos. NO instale la unidad enfriadora, la estación central o el cable a menos de unos 3 metros de aparatos emisores de ondas electromagnéticas, como los equipos médicos. Si la estación central se instala en un lugar donde haya radiación de ondas electromagnéticas, proteja el controlador cubriéndolo con una caja de acero y haga pasar los cables por un conducto metálico. En caso de que haya un ruido eléctrico en la fuente de alimentación de la unidad interior, instale un filtro antirruido. 2. INSTALACIÓN PRECAUCIÓN: Siga las normativas nacionales relativas al correcto montaje en la pared de la unidad CSC-5S. ESPAÑOL 2.. SELECCIÓN DEL LUGAR DE INSTALACIÓN Seleccione un lugar apropiado para el manejo y decida el lugar de instalación del controlador con la aceptación del cliente. No instale la estación central en los siguientes lugares: - al alcance de los niños; - donde se descargue directamente el aire procedente del sistema de aire acondicionado ANTES DE LA INSTALACIÓN Este embalaje contiene las siguientes piezas: estación central para controlar el funcionamiento 2 tornillos M4x6L para fijar el soporte de sujeción en la pared

30 2 INSTALACIÓN 2.3. ESPACIO DE INSTALACIÓN En caso de instalar los controladores en línea vertical, mantenga una distancia entre ellos de más de 50 mm verticalmente. Si la distancia es insuficiente, no podrá abrir completamente la tapa frontal del controlador. Más de 50 mm. Inserte la punta de un destornillador en las ranuras que encontrará en la parte inferior del soporte, empuje y gire el destornillador y extraiga el controlador del soporte. No inserte el destornillador en los clavos que hay cerca de las ranuras o éstos resultarán dañados. Pieza de control Pieza de la fuente de alimentación Vista desde la parte inferior Ranura Ranura Aprox. 6 mm Destornillador Clavo Destornillador 2. Una la pieza de la fuente de alimentación a la caja del interruptor. Pieza de la fuente de alimentación Tornillo (x2) No pase la línea de conducción eléctrica y la línea de control por el mismo conducto. Línea de conducción eléctrica Línea de control Caja del interruptor con tapa (Suministrada por el instalador) 3. Una la pieza de control a la pieza de la fuente de alimentación. Primero adjunte el lado superior y luego, el inferior.

31 CABLEADO ELÉCTRICO 3 3. CABLEADO ELÉCTRICO 3.. CABLEADO ELÉCTRICO 8 unidades enfriadoras máx. Unidades enfriadoras Unidades enfriadoras Temporizador de control (Opción) Conector Terminal TB2 CSC-5S CN TB ESPAÑOL H-LINK Accesorio del temporizador de control Cable (m) FG Fuente de alimentación AC220~240V Hacia TB2 de otro controlador Cable de par trenzado P-0,75mm TIPOS DE CABLEADOS RECOMENDABLES Japan Cable Industrial Associations Hitachi Cable Co., Ltd. Japan Cable Co., Ltd. Notas JKEV KPEV KNPEV No blindado JKEV-S KPEV-S KNPEV-S Blindado (Copper Foil) JKEV-SB KPEV-SB KNPEV-SB Blindado (trenzado) NOTA: - Utilice siempre cable de par trenzado. - Cable de conexión: Suministrado por el instalador - Cable de conexión: Cable de par trenzado de 0,75 mm 2 - Longitud máx. del cableado:.000 m (total) - Se puede utilizar tanto cable blindado como no blindado AJUSTE DEL CONMUTADOR DIP AJUSTE DE LOS CONMUTADORES DIP (DSW Y DSW2) - Ajuste los conmutadores DIP (DSW y DSW2) del siguiente modo. Es necesario configurar el ajuste de la dirección en caso de conectar más de 2 controladores (máx. 8 controladores).

32 4 CABLEADO ELÉCTRICO Ajuste del conmutador DIP DSW DSW2 Nº de pin Contenido del Ajuste del DSW ajuste ON OFF Para ajustar la dirección Para comprobar la conexión Modo de control Consulte la siguiente tabla. No disponible Control múltiple Disponible Control individual 2 Tiempo de señal de salida para 60 seg. 30 seg. transmisión Ajuste del DSW (para ajustar la dirección) Observaciones Es necesario ajustar estos conmutadores en caso de conectar más de 2 unidades. H-Link (Enfriadora~CSC-5S) Dirección (Ajuste en fábrica) ON Dirección 2 Dirección 3 Dirección 4 ON ON ON Dirección 5 Dirección 6 Dirección 7 Dirección 8 ON ON ON ON PRECAUCIÓN: - Una conexión incorrecta causará daños al controlador. - Si los trabajos de cableado se realizan suministrando la fuente de alimentación al controlador, éste podría romperse. Asegúrese de que la fuente de alimentación no es suministrada al controlador y la unidad enfriadora. - No coloque todos los cables de señales juntos con el cable de la fuente de alimentación y otros cables de señales. El ruido causado por estos cables podría conllevar el mal funcionamiento del controlador y la unidad enfriadora. Si los cables de señales están junto al cable de la fuente de alimentación y otros cables de señales, mantenga una distancia superior a 5 cm entre los cables de señales y otros, o bien haga pasar los cables de señales por un conducto metálico y conecte a tierra uno de los extremos de este conducto. - Si el cable de la fuente de alimentación está conectado a la placa de bornes para la señal de transmisión y se aplica una tensión a la fuente de alimentación debido a una conexión incorrecta, se fundirá el fusible para así proteger la placa de circuitos impresos. En cuyo caso, este controlador puede funcionar sin el fusible ajustando el pin nº2 del DSW3 en posición ON. ON DSW3 (Restablecimiento OFF de los fusibles) 2 - Ajuste el mismo nº de dirección para el controlador remoto y el temporizador de control. - Ajuste el DSW del temporizador de control según el ajuste de fábrica (posición OFF), excepto la dirección. - Ajuste la disponibilidad del temporizador de control (ON/OFF) para cada unidad enfriadora conectada en el controlador remoto. Para más detalles, consulte el apartado "Procedimiento de funcionamiento del temporizador". - Para el funcionamiento del temporizador de control, consulte el "Manual de instalación y funcionamiento del temporizador de control" que se adjunta con el controlador PSC-5T.

33 REGISTRO DE GRUPO 5 4. REGISTRO DE GRUPO Indicación una vez conectado el interruptor de alimentación Si no se lleva a cabo el registro de grupo, la indicación varía del siguiente modo. UNIT No Esto indica el nº de unidades conectadas tras comprobar la conexión. Tras comprobar conexión En caso de dirección "" del controlador UNIT No En caso de que la dirección del controlador no se ajuste en "" y no se lleve a cabo el registro de grupo. (Es imposible hacer funcionar la unidad sin realizar el registro de grupo). ESPAÑOL 4.. PROCEDIMIENTO DE REGISTRO DE GRUPO Cambie al modo de registro de grupo. Pulse el interruptor "GROUP" durante más de 3 segundos cuando todas las unidades estén apagadas. Si el modo se cambia al modo de registro de grupo, la indicación variará como se indica a continuación. El modo de registro de grupo no está disponible durante el funcionamiento. Si se lleva a cabo este procedimiento, "" aparecerá en la pantalla LCD del controlador. UNIT No En caso de dirección "" del controlador o durante el cambio a modo de registro UNIT No En el caso de que la dirección del controlador no se ajuste en "" y no se lleve a cabo el registro de grupo. Primer dígito Segundo dígito Tercer dígito 2. Ajuste el nº mín. de unidades controladas pulsando o (tercer dígito). 3. Pulse de nuevo el botón "GROUP". UNIT No Ajuste el nº máx. de unidades controladas pulsando o (primer dígito). 5. Pulse el botón "GROUP" durante más de 3 segundos. La unidad pasará del modo de registro de grupo a modo normal.

34 6 REGISTRO DE GRUPO PRECAUCIÓN: - Si se pulsa el botón "RESET" o no se pulsa ningún otro botón durante más de 30 segundos, el modo de registro de grupo pasa automáticamente a modo normal. En este caso, el registro de grupo no está disponible. - Asegúrese de no llevar a cabo el ajuste del mismo nº de unidad cuando dos o más controladores están conectados. En este caso, es necesario ajustar el nº de dirección del controlador desde el nº menor de unidad. Si no se realiza este procedimiento, puede aparecer el código de alarma "E002". En este momento, corrija el nº de dirección del controlador con el código de alarma "E002" en primer lugar. Ejemplo. Ajuste la dirección en el controlador (dir.) para las unidades nº a Ajuste la dirección 2 en el controlador (dir. 2) para las unidades nº 4 a Una vez ajustado el registro de grupo, la alarma "E002" aparece en la dirección del controlador nº Corrija el ajuste de la dirección del controlador nº 2 en las unidades nº 5 a La alarma "E002" desaparece. Unidad enfriadora Dirección del controlador Dirección 2 del controlador

35 NOMBRE DE CADA PIEZA 7 5. NOMBRE DE CADA PIEZA Sección de la pantalla de cristal líquido La siguiente figura muestra todas las indicaciones a modo de referencia. La pantalla real durante el funcionamiento es diferente. Indicación de unidad en funcionamiento (Página 0) Indicación de control individual (aparece durante el control individual) (Página 8) Indicación del temporizador (Página 6) Indicación de parada de emergencia (Página 7) ESPAÑOL Indicación de funcionamiento de cada unidad(página 2) Indicación de control de múltiples unidades (aparece durante el control de múltiples unidades) (Página 8) Indicación de demanda (Página 7) Indicación de "No Function" (en caso de funcionamiento incorrecto) Indicación de modo de funcionamiento (Página 2) HITACHI Indicación de ajuste de temperatura (Página 0, 3) Piloto RUN (rojo) (Página 0, 5) Interruptor RUN/STOP (Página 5) Interruptor de cambio de modo de funcionamiento (Página 2) Interruptor aire acondicionado / almacenamiento de calor (Página 2) RUN/STOP MODE CHANGE / TIMER COOL UNIT No. TIMER MULTI INLET SET TEMP. OUTLET TEMP. PR. MPa LOCAL ABNML CHECK OPTION GROUP DISP.MODE TEMP. UNIT SELECTION RESET CHECK Indicación de temperatura de entrada / salida (Página 3) Indicación de alarma (Página 7) Indicación local (Página 7) Interruptor de selección de unidad (cada página) Interruptor de selección del temporizador (Página 6) Interruptor de reinicialización (Página 8, 8) Interruptor de elección de opciones (Página 8, 9) Interruptor de ajuste de grupo (Página 8) Interruptor de cambio de pantalla (Página 4) Interruptor de ajuste de temperatura (Página 3) Interruptor de comprobación (Página 3, 20) Este interruptor sólo se utiliza para las tareas de servicio. No toque este interruptor salvo para las tareas de servicio.

36 8 CONTROLES Sección del interruptor de funcionamiento La figura anterior muestra la estación central con la tapa abierta. Para abrir la tapa, tire de ella en la dirección que indica la flecha. 6. CONTROLES Control individual Control de múltiples unidades - "" aparece en el panel de la pantalla durante este control. Hay dos tipos de control disponibles. Uno es el registro de grupo (véase el apartado "Procedimiento de registro de grupo"). Este control permite el control de cada unidad. El otro tipo es el control de grupo simultáneo. Al pulsar el interruptor de la unidad, los números de unidad son modificados. "AA" indica todas las unidades que se han registrado. - Los contenidos que son distintos en función de la unidad, excepto el piloto RUN, no se indican durante la indicación del nº de unidad "AA". (Por ejemplo, modo de funcionamiento/almacenamiento de calor, ajuste de temperatura, local, etc.). - Es posible ajustar las opciones seleccionando la siguiente configuración. (Consulte el procedimiento de ajuste de opciones). Ajuste diferencial ON/OFF Opción - "MULTI" aparece en el panel de la pantalla durante este control. La unidad que se configuró como registro de grupo se controla ON/OFF automáticamente mediante la detección de la temperatura de ajuste y la temperatura detectada. (Si se pulsa el interruptor "UNIT SELECTION" durante el modo normal, "" aparecerá en la pantalla). - El control de hasta 8 unidades enfriadoras se lleva a cabo detectando la temperatura mínima del agua durante el enfriamiento y la temperatura máxima del agua durante la calefacción, respectivamente. - En el caso del control de la temperatura del agua de entrada (salida), las unidades enfriadoras son controladas por la temperatura mínima/máxima del agua de entrada (salida) detectada en las unidades del mismo grupo. - Es posible ajustar las opciones seleccionando la siguiente configuración. (Consulte el procedimiento de ajuste de opciones en la página 9). Ajuste diferencial ON/OFF Opción Selección del control de temperatura del agua de entrada o salida Opción 2 Selección de la disponibilidad del control de capacidad para la unidad que se detiene en último lugar Opción 3 Selección de la disponibilidad del control ON/OFF de la bomba de la unidad que es parada por el termostato Opción 4 NOTA: - Esta función de control se selecciona ajustando el pin nº del DSW2 en ON u OFF. Este ajuste es necesario antes de suministrar electricidad a la unidad. (Este ajuste no se puede modificar una vez se ha suministrado electricidad a la unidad). - Si necesita cambiar este ajuste, póngase en contacto con su instalador local.