Regulator installation and operation manual RX910-FOX

Transcription

1 Regulator installation and operation manual RX910-FOX SAFETY IS MOST IMPORTANT! The regulator shall be installed only by qualified personnel in compliance with the regulations and standards in force. The regulator must not be installed or used in the installation with an ineffective protection system specified by the regulations and standards in force. The regulator with any mechanical damage must not be installed or used danger for health and life! Any repairs shall be made only by the manufacturer s service or an authorised service point. Any attempts to make repairs by unauthorised people cause a loss of rights arising out of the warranty. HOW TO USE THE MANUAL The manual contains the information for the installer, controller s user and service people. The user decides to what degree they want to get to know the device and which functions they want to use. Chapters that the user may skip (mainly for the installer and service people) are preceded with the symbol. Functions reserved only for the installer and service people that require the mode SERVICE to be started are preceded with the symbol. Sections requiring a special focus are marked with the symbol. References to other sections of the manual where a discussed function is described broadly are preceded with the symbol. Manual for RX910-FOX Page 1 of 28

2 INTENDED USE OF THE REGULATOR Regulators RX910-FOX are designed for a control of boiler rooms with a cascade of 2 or 3 low-temperature boilers with one or two-degree oil or gas burners. The cascade may be operated in one of four typical process systems. Each boiler has to be equipped with the regulator RX910-FOX. Regulators are connected with a communication link RS485. One of the regulators is the master regulator and the others are slave regulators. Each regulator, apart from burner and boiler s local hardware control, may control one central heating (CO) circuit with a mixer and one circuit of hot usable water (CWU) preparation. Moreover, regulators RX910-FOX enable cooperation of the cascade with the process heat (CT) circuits with the independent automatics. CONFIGURATION OF THE REGULATOR The regulator s configuration consists in setting the switches under the stopper in the upper right corner of the desk in relevant positions. The switch lever moved up means state ON (1). The switch lever moved down means state OFF (0). A position of switches may be changed by means of a small screwdriver or a ball pen. The table describes functions of specific switches: Switch Function Comments S1, S2, S3 Binary-coded unique number of MASTER regulator, the regulator for communication SLAVE1 regulator, purposes SLAVE2 regulator, S4, S5 Binary-coded number of a selected process circuit other settings forbidden. 00 system U0, 01 system U1, 10 - system U2, 11 system U3. S6 Use of the CO circuit 0 - regulator does not control the CO circuit, 1 - regulator controls the CO circuit. S7 Use of the CWU circuit 0 - regulator does not control CWU, 1 - regulator controls CWU. S8 Signalling of a lack of communication 0 signalling switched off, 1 signalling switched on. Switches S4 and S5 determine a number of a process system to be controlled by the regulator. One of the following systems may be chosen (systems with a cascade of 2 boilers have been presented for clarity purposes). Manual for RX910-FOX Page 2 of 28

3 System U0 RX910-FOX (MASTER) ON RX910-FOX (SLAVE1) ON RS485 Tzw Tcw Tco Tcw Tco M Tzas M Tp Tpi M M RX910-FOX (MASTER) ON RS485 RX910-FOX (SLAVE1) ON Tzw Tzas Tcw Tco M Tcw Tco M M M Tp Tp Manual for RX910-FOX Page 3 of 28

4 System U2 RX910-FOX (MASTER) ON RS485 RX910-FOX (SLAVE1) ON Tcw Tco Tcw Tco Tzw M M Tp System U3 RX910-FOX (MASTER) ON RX910-FOX (SLAVE1) ON RS485 Tcw Tco Tcw Tco Tzw M M M Tp M Tp Manual for RX910-FOX Page 4 of 28

5 DESCRIPTION OF OPERATIONS Operating mode The regulator may operate in one of two modes: Zima (Winter) weather control in the CO circuit and CWU preparation, Lato (Summer) control of the CWU preparation. The mode may be selected manually or automatically. In the mode Zima (Winter) the CO circulating pump is switched on permanently. In the mode Lato (Summer) the pump is started everyday at 15:00 for 1 minute to avoid seizure. After switching off the pump the regulator opens and closes again the mixing valve of the CO circuit. It prevents aggregation of deposits and tarnish in the valve mechanisms. Protective switching on of the pumps and moving of the valve mixers outside the heating seasons assure correct operation of the devices in winter the biggest number of pump, servo-motor and valve failures are detected at the beginning of the heating season. More about the operating mode in section CLOCK AND MODE - Mode. Regulation in the CO circuit There is the weather regulation in the CO circuit the set water temperature in the CO installation is calculated based on a selected heating curve and active program of inside temperature changes. The curve determines dependencies between the outside temperature (Tzew) and temperature of water in the CO installation (Tco) assuring a maintenance of the inside temperature () at a level of 20 C. A shape of th e heating curve depends on a degree of wall insulation, window tightness, performance and area of heaters, rate of heating medium flow, etc. The below diagram shows a set of curves to be chosen: Tco[ C] Tzew[ C] Curves 0 to 3 are used for floor heating, curves of 4 to 15 for systems of heaters. The regulator enables week inside temperature programming in CO circuits. The week program of each circuit consists of a 24h-program for working weekdays (Monday-Friday), program Saturday and program Sunday. Manual for RX910-FOX Page 5 of 28

6 Each of 24h-programs may consist of two ranges with comfortable temperature (T.Kmf) intervened by economical temperature (T.Eko) ranges. The below diagram shows an example of a 24h-program: ( C) time of the day In the example T.Eko=16 C, T.Kmf=20 C. Apart from the week program, a program of constant temperature Ferie (Holiday) program - may be chosen for the CO circuit with a set temperature that does not depend on time. During the program Ferie, the set inside temperature equals T.Eko. If the set inside temperature (resulting from the regulation program) is lower or higher than 20 C, the required installation water temperature i s read out of a respectively moved curved: Tco[ C] Curve for w=28 C Basic Curve (w=20 C) Curve for w=8 C Tzew[ C] w[ C] More about a choice of the active heating curve and settings connected with the CO program in section CO settings and CO program. For regulation of the installation water temperature in the CO circuit the PI regulator was applied with the indexing output controlling the mixing valve servo motor. Regulation parameters (amplification Kp, integration time Ti and servo motor run time Tps) are available only in the service mode. If an inside temperature sensor is installed in the CO circuit, the regulator enables an automatic correction of the temperature in the CO installation depending on a result of a comparison of the inside temperature measured and set. The correction coefficient WspKorCO may have values from 0 to 9. With WspKorCO=0 the correction is not made, with WspKorCO=9 the correction has a high impact on a set installation water temperature in the CO circuit. Parameter Tcomax determines the maximum installation water temperature in the CO circuit. CO parameters: Kp, Ti, Tps, Tcomax and WspKorCo are available only in the service mode. Manual for RX910-FOX Page 6 of 28

7 Regulation in the CWU circuit CWU regulation is performed by a CWU charging pump control with the set hysteresis. The set temperature of water in the container is taken from the active, week or constant temperature (Ferie) CWU program. The week CWU program is structured similarly as the week program for the CO circuit. During the operation of the program Ferie the set temperature in the CWU container is T.Eko. CWU preparation may take priority over CO regulation. It depends on the parameter PriorCW; however if the CWU circuit operating with the priority was assigned to the MASTER, the priority covers all CO circuits. The operation of the priority of the CWU circuit assigned to the SLAVE regulator is local, i.e. it affects only the CO circuit of the regulator. More about settings connected with CWU in sections CWU settings and Program CWU. When feeding the CWU container, the required feeding temperature is: TzadCWU+ TCW The parameter Tcw (excess of the feeding temperature over the set CWU temperature) is programmed. After reaching the set temperature in the container, the charging pump is switched off with a delay specified by parameter WybPomCW. The CWU regulation hysteresis is specified by parameter HisterCW. Parameters WybPomCW, Tcw and HisterCW are available only in the service mode. The CWU circulation pump is switched off in the periods when the economical temperature results from the CWU program. The CWU circulation pump works within the ranges with the comfortable temperature. Control of the boiler and boiler s hardware Each of cooperating regulators RX910-FOX, apart from functions connected with the regulation in the local CO and CWU circuit, controls devices connected with the boiler to which it is assigned, i.e.: work of one and two-degree burner, position of the boiler s cut-off valve (system U0 and U1), work of a local pre-mixing pump (system U1), work of boiler s pump (system U2 and U3), position of the return regulation valve (system U3). If the slave regulator receives commands of switching on and off the burner s degrees from the master regulator, the control of the other mentioned elements is autonomous. Parameters deciding about the boiler s operations: ZwlZal2st: delay in switching on the second degree of the burner, MinCzPrac: minimum time of the burner s operation, MinTPowr: minimum boiler s return temperature, WybPPodm: rundown of the premixing pump (refers to a local pump in system U1 or a premixing pump controlled by the MASTER regulator in system U0), ZwlZamKla: delay in closing the valve of the follow-up boiler after switching off the burner of the boiler in system U0 and U1, WybPomKot: rundown of the follow-up boiler pump in system U2 and U3, Kp: only in system U3 - parameter Kp of the PI regulator controlling the work of the return regulation three-way valve servo motor, Manual for RX910-FOX Page 7 of 28

8 Ti: only in system U3 - parameter Ti of the PI regulator controlling the work of the return regulation three-way valve servo motor, Tps: only in system U3 runtime of the return regulation three-way valve servo motor. The boiler s regulator limits the boiler s temperature to 92 C. Boiler cascade control The MASTER regulator receives by means of the communication link required feed temperatures, among others, from slave regulators. Based on the figures, taking into account requirements of own CO and CWU circuit and the required boiler s minimum return temperature to which it is assigned, it calculates the maximum being the set feed temperature. The set feeding temperature is limited up to 90 C. Depending on the demand for heat, MASTER commands switching on a relevant number of power degrees. A delay between switching on successive boilers of the cascade is the cascade s parameter (ZwlZalKot), similarly as the minimum time of the boiler s operation. Cascade s parameters set in the MASTER regulator decide about the cascade s operation: LiczbaKot: number of cascade s boilers (from 1 to 3), NrKotWiod: number of the leading boiler, AutZmKot: interval of the automatic change of the leading boiler (number of days between changes of the leading boiler), Kp: coefficient of the cascade s PI regulator amplification, Ti: integration time of the cascade s PI regulator, ZwlZalKot: delay in switching on another boiler of the cascade. Setting of the cascade operation parameters has an essential importance for the quality of regulation and economics of the cascade operation. The settings may be changed only by persons of relevant knowledge and experience. Change of the order of boilers The order of the Cascade s boilers may be changed automatically every set number of days according to the rule: leading boiler no. 1 (order of boilers 1-2-3), leading boiler no. 2 (order of boilers 2-3-1), leading boiler no. 3 (order of boilers 3-1-2), leading boiler no. 1 (order of boilers 1-2-3), etc. The cascade s parameter AutZmKot decides about the leading boiler change frequency. If the parameter AutZmKot=0, a change of the boiler order will not be made automatically. The order of boilers may be changed manually in the service mode. Return protection In the boiler s parameters of every cooperating regulator a minimum return temperature is defined. The regulator s operation within a scope of the return protection depends on a selected process system. In the system U0 the MASTER regulator measures the temperature of water returning to the boilers in points Tp and Tpi. If the temperature in point Tpi is lower than max{mintpowr1, MinTPowr2, MinTPowr3}+5 C, the regulator switches on the premixing pump. Manual for RX910-FOX Page 8 of 28

9 If during the operation of the premixing pump the temperature in point Tp is lower than max{mintpowr1, MinTPowr2, MinTPowr3}, MASTER commands closing of the mixing valves of CO circuits and/or switching off the CWU charging pumps. In system U1 the return temperature is controlled individually for every boiler. If during the activity of the boiler, the temperature in point Tp drops down below MinTPowr, the regulator switches on the boiler s premixing pump. The premixing pump operates with the rundown specified in parameters. In system U2 the MASTER regulator measures the temperature in point Tp. If the temperature in the point drops down below max{mintpowr1, MinTPowr2, MinTPowr3}, MASTER commands closing of the mixing valves of CO circuits and/or switching off the CWU charging pumps. In system U3 the boiler s regulators control their return temperature autonomously by means of mixing valves installed on the returns. The return protection mechanism operates in the mode Zima (Winter) and during the CWU container feeding in the mode Lato (Summer). During the boilers stop in the mode Lato (Summer) the return is not controlled. Cooperation with the process heat circuit Closure of the binary input WeBin causes an increase of the set temperature of the cascade s feeding collector to the temperature specified by parameter TzadCT. The mechanism can be used upon feeding additional circuits from the cascade, e.g. ventilation centres with water heaters, process heat systems, etc. Upon designing the systems using the function, a removal of heat produced by the cascade should be assured together with the closure of WeBin input (e.g. by switching on the process circulation pump, opening of the valve, etc.). Heat removal, especially in the mode Lato (Summer) should be switched off with a time delay after divergence WeBin. Other functions The regulator enables output testing (function Output Test). All measured temperatures may be displayed in function Temperatures. Manual for RX910-FOX Page 9 of 28

10 SENSORS Characteristics of the temperature sensors The regulator has measurement inputs adapted to cooperation with sensors KTY The measurement range is -29 C to 95 C. The below table shows the characteristics of the measurement element. Temperature ( C) Effective resistance (Ω) Temperature ( C) Effective resistance (Ω) All sensors have the same measurement element. Information about available types of sensors and recommendations concerning their installation can be found in the catalogue sheet Temperature sensors with the measurement element KTY or on the website ASSEMBLY The regulator s casing is universal and designed for the following assembly type: baord, including in boiler control panels, wall (with a use of the base), on DIN rail (with a use of the base). Parameters important for the baord mounting: hole size: 138x92mm, depth of mounting: min 90mm, baord thickness: max 3,5mm. To fix the regulator on the baord it is necessary to use 2 extension catches located in the lower right and upper left corner of the face board. Standard dimensions of the casing enable assembly of the regulator in control panels of boilers made by many manufacturers. An assembly on a wall requires a use of the assembly base RX910-BAZA. The base is fixed to the wall with 4 screws. After connection of object cords to the base s terminals, the regulator is pushed into the base. Before putting and removing the regulator in/from the assembly base, turn off the power. Special attention is required when removing the regulator from the base. Excessive tilting of the regulator when removing it from the base may cause damage to the male part of the connector. The base may be also mounted on the DIN rail. A special base catch shall be used. Manual for RX910-FOX Page 10 of 28

11 ELECTRICAL CONNECTIONS Depending on a selected process system and a manner of the regulator s assembly one of the below electrical connection diagrams should be applied. Abbreviations used in the diagrams: N neutral pole of the mains supply 230V/50Hz, L supply of the regulator s electronic part (phase of the mains supply 230V/50Hz), L supply of pumps executive devices, servo motors (phase of the mains supply 230V/50Hz), Tzew outside temperature sensor, Tzas feeding temperature sensor, boiler s temperature sensor, Tpi return temperature sensor, Tp return temperature sensor, Tco sensor of the installation water temperature in the CO circuit, CO circuit inside temperature sensor, ZdSt remote control (integrated with sensor ), Tcwu sensor of water temperature in the CWU container, WeBin binary input signalling demand for heat from the additional CT circuit. The length of sensors cords should not exceed 30m with the cord section 2x0.5mm 2 Cu. Sensor cords should be screened and laid in a distance of minimum 30cm of power cords. It is inadmissible to lay all cords (sensor and power) in one bundle. When connecting object cords to terminals, always follow terminal numbers and not the order of devices and sensors. Be careful especially when connecting power cords. Electrical connection diagram system U0 (board assembly view of connections on the back of the regulator) Electrical connection diagram system U0 (assembly in the base view of connections of the assembly base) R o z first degree N L L' charging CWU pump circulating CO pump B A GND CO premixing pump* circulation CW pump Boiler gate (opening) second degree WeBin Tcwu ZdSt Twi Tp* Tpi* Tzas* WeBin Tcwu ZdSt Twi Tp* Tpi* Tzas* L' charging CWU pump circulating CO pump premixing pump* circulation CW pump Boiler gate (opening) N L CO first degree second degree o z R 30 Tzew 1 1 Tzew 30 *only for the MASTER regulator * only for the MASTER regulator Manual for RX910-FOX Page 11 of 28

12 Electrical connection diagram system U1 (board assembly view of connections on the back of the regulator) Electrical connection diagram system U1 (assembly in the base view of connections of the assembly base) R z o first degree N L L' charging CWU pump circulating CO pump B A GND CO premixing pump circulation CW pump Boiler gate opening second degree WeBin Tcwu ZdSt Tco Tp Tzas* WeBin Tcwu ZdSt Tco Tp Tzas* L' charging CWU pump circulating CO pump premixing pump circulation CW pump Boiler gate (opening) N L CO first degree second degree o z R 30 Tzew 1 1 Tzew 30 * only for the MASTER regulator Electrical connection diagram system U2 (board assembly view of connections on the back of the regulator) * only for the MASTER regulator Electrical connection diagram system U2 (assembly in the base view of connections of the assembly base) R o z N L L' charging CWU pump circulating CO pump B A GND CO WeBin Tcwu ZdSt Tco WeBin Tcwu ZdSt Tco N L L' charging CWU pump circulating CO pump CO o z R circulation CW pump boiler pump Tp* Tp circulation CW pump boiler pump first degree second degree Tzas* Tzas* first degree second degree Tzew 1 1 Tzew 30 * only for the MASTER regulator Electrical connection diagram system U3 (board assembly view of connections on the back of the regulator) * only for the MASTER regulator Electrical connection diagram system U3 (assembly in the base view of connections of the assembly base) R o z o z first degree N L L' charging CWU pump circulating CO pump B A GND CO boiler boiler pump second degree WeBin Tcwu ZdSt Tco Tp Tzas* Tzew WeBin Tcwu ZdSt Tco Tp Tzas* N L L' charging CWU pump circulating CO pump CO boiler boiler pump first degree second degree o z o z R * only for the MASTER regulator 1 Tzew * only for the MASTER regulator 30 Manual for RX910-FOX Page 12 of 28

13 Power supply for the electronic part of the regulator (L) and executive circuits (L ) was separated to protect them separately (as in the below diagram): mains 230V/50Hz N L WT1 WT WT1 fuse element protecting the regulator, WT2 - fuse element protecting the executive circuits. WT1 should be 250mA, a value of WT2 should be closest to the total of currents consumed by devices supplied from the regulator (pumps, servo motors). In the simplest case the power supply can be led to terminal 17 and terminal 17 should be connected with terminal 18 as in the diagram: mains N 230V/50Hz L The regulator s supply circuit should be protected with a separate installation switch type S301. It enables, apart from the protection function, easy regulator supply switch off. At the board assembly, power supply and device cords N (blue most often) should be connected with a terminal strip N of the control cabinet or boiler s desk. Similarly, power supply and device cords PE (green-yellow most often) should be connected with a terminal strip PE of the control cabinet or boiler s desk. Base RX910-BAZA, apart from terminals seen in the diagrams, has a terminal strip N and terminal strip PE: Manual for RX910-FOX Page 13 of 28

14 Power supply and device cords N should be connected with strip N. Power supply and device cords PE should be connected with strip PE. Sensor cords or power supply cords (regulator s power supply, device control cords) cannot create a loop around the regulator. If the boiler s manufacturer did not assume a possibility of an external control of a burner, terminals 26, 27 of the regulator (control of 1st degree of the burner) should be included in the row with the boiler s regulation thermostat. Opening of the CO mixer means an increase of the flow from the boiler to the CO installation, closing means an increase of the flow of return to the CO installation. Opening of the mixer on the boiler s return means an increase of the flow from the CO installation to the boiler s return, closing means an increase of the flow from the boiler s output to the boiler s return. Communication links between the regulators (RS485) should be made as in the diagram: Communication connection is located in the middle of the back of the regulator. Plug RX910- W3 is used to make the connections. Connections in the distance over 2m should be made with a screened spiral. The screen should be connected in one point with the closest terminal PE. Manual for RX910-FOX Page 14 of 28

15 OPERATION The regulator has an illuminated LCD display 4x16 characters and a keyboard consisting of 6 buttons. A large size of the display and the intuitive menu allow a majority of users, after first reading of the manual, to operate the device without using the manual. diode signaling the regulator's state configuration switches under the stopper ON operating mode choice switch (auto/manual) Pressing of a button is confirmed with a buzzing sound (buzzer). If all measurement chains are efficient and communication between the regulators is operational, a diode in the upper left corner of the desk lights in green. The red light of the diode signals an error of the measurement chain (failure of the sensor, interruption in the sensor s line) or no communication. Under the stopper in the upper right corner of the desk there are 8 two-position switches for the regulator s configuration. The switch in the lower part of the desk enables choosing of a manual control of the local installation. After turning on the power, the main screen is displayed: In the upper line of the screen, a current day of the week is displayed in the following convention: Pn Monday, Wt Tuesday, Sr Wednesday, Cz Thursday, Pt Friday, So Saturday, Ni Sunday, Current time in the format hh:mm and operating mode Zima (Winter) or Lato (Summer). A letter in brackets beside the mode field signals a manner of the mode choice (A-automatic, R-manual). Manual for RX910-FOX Page 15 of 28

16 In the second line an active program in the CO circuit is displayed: Tygodn: active week program, Ferie: active program Ferie (holiday), ---: CO circuit is not used. In the third line an active program in the CW circuit is displayed:: Tygodn: active week program, Ferie: active program Ferie (holiday), ---: CWU circuit is not used. In the fourth line the regulator s status is displayed resulting from a position of configuration switches S1, S2 i S3: Master: regulator works as the master regulator, Slave1: regulator works as slave regulator number 1, Slave2: regulator works as slave regulator number 2, as well as a number of selected process system (U0, U1, U2 or U3) resulting from a position of configuration switches S4 and S5. A horizontal dash displayed on the screen under letter M of the word MENU is a cursor. The cursor shows a screen element active in a given moment. Pressing of the button move you to the screen of the regulator s main menu. The other buttons are inactive. OK will MENU A screen with the regulator s main menu looks as follows: Temperatury temperatures Zegar i tryb Clock and mode Nastawy CO CO settings Program CO CO program A horizontal dash displayed on the screen under letter T of the word Temperatury (Temperatures) is a cursor. The cursor shows a screen element active in a given moment. A position of the cursor may be changed by pressing the buttons,. Specific words are elements of the menu that move you to associated functions. Manual for RX910-FOX Page 16 of 28

17 Press the button OK to start a function connected with an active menu element; if the cursor is under the arrow, you will be moved to the next screen of the main menu: Nastawy CWU CWU settings, Program CWU CWU program, Nastawy inne other settings, Serwis Service. Press the button ESC to return to the previous screen. Below there is a description of functions of specific menu elements. TEMPERATURES To display a screen with values of measured temperatures start the function Temperatures: In the line two temperatures are displayed. First of them is the measured inside temperature, the other is the value of reduction/raise set in the programming device of sensor. If an inside temperature sensor is not installed, question marks??.? are displayed in the measurement field. If a sensor with the programming device was not installed, the field reduction/raise displays value 0. Press the button ESC when the screen is displayed to return to the main menu. Press the button temperatures: OK to display the next screen with values of the other measured Press the button ESC when the screen is displayed to return to the previous screen. Manual for RX910-FOX Page 17 of 28

18 The regulator controls efficiency of measurement chains. Any damage of the measurement chain, to which a sensor should be connected, is signalled by red colour of the diode and letter A (failure) displayed in a line of a relevant temperature. CLOCK AND MODE To display the below screen, start the function Clock and mode: In the field Dzień (Day) a current weekday is displayed. In the field Czas (Time) a current time is displayed. In the field Tryb (Mode) the set mode of the regulator work is displayed. The field may have the following values: Zima (Winter), Lato (Summer), Auto. A choice of Zima (Winter) or Lato (Summer) will cause the regulator s work in this mode irrespective of the weather outside (manual choice of the mode). A choice of Auto will cause an automatic change of the regulator s operating mode depending on a result of a comparison of the outside temperature with the temperature of the threshold Zima/Lato (Winter/Summer) set in the field Z/L). The current mode of the regulator s work and a manner of the mode choice are displayed on the main screen of the regulator. The below table contains possible values of the screen and their interpretation: Field Mode Lato (R) Lato (A) Zima (R) Zima (A) Interpretation Manually chosen mode Lato (Summer) (Summer mode irrespective of the outside temperature). Mode Lato (Summer) chosen automatically. Manually chosen mode Zima (Winter) (Winter mode irrespective of the outside temperature). Winter mode chosen automatically. Current week day setting using the buttons, set the cursor in the field Dzień (Day) (under the first letter of the week day), press the button OK - the cursor will change into a pulsing rectangular, using the buttons, set the required week day (Pn (Monday), Wt (Tuesday), Sr (Wednesday), Cz (Thursday), Pt (Friday), So (Saturday) or Ni (Sunday)), press the button OK to accept the choice or press the button ESC to exit the week day edition. Manual for RX910-FOX Page 18 of 28

19 Current time setting place the cursor in the field Czas (Time) under the current hour, press the button the first hour digit, OK - the cursor will change into the pulsing rectangular in the field of press the buttons, to set the first hour digit, press the button or to place the cursor on the second hour digit, press the buttons, to set the second hour digit, OK press the button to accept the choice or press the button ESC edition, place the cursor under the minutes, set minutes of the current time following the same pattern. to exit the hour Change of the operating mode press the buttons, to place the cursor in the field Tryb (Mode), press the button OK - the cursor will change into a pulsing rectangular, press the buttons, to select a desired operating mode of the regulator, press the button OK to accept the choice or press the button ESC to exit the edition. Change of the threshold temperature Zima/Lato (Winter/Summer) place the cursor in the field Z/L (buttons, ), press the button OK, press the buttons, to set the first digit of the Winter/Summer threshold temperature, move to the edition of the second digit by pressing, use the buttons, to set the second digit of the Winter/Summer threshold temperature, press the button OK to confirm the set value or press the button ESC to exit the edition the previous value of the Winter/Summer threshold temperature will not be changed. CO SETTINGS After starting the function CO Settings the following screen is displayed: Manual for RX910-FOX Page 19 of 28

20 In the field T.Eko the economical (reduced) inside temperature value is displayed low columns in brackets are the symbol of the temperature. In the field T.Kmf the comfortable (regular) inside temperature value is displayed high columns in brackets are the symbol of the temperature. The economical and comfortable temperatures are the terms associated with the week program. More about the CO week program in section PROGRAM CO. In the line Prg an active CO program is displayed: Tygodniowy (Week) or Ferie (Holiday). A selection of the option Tygodniowy (Week) will result in CO regulation according to the week program (see Program CO). If the option Ferie (Holiday) is selected, the regulator will maintain the economical temperature in heated rooms regardless of a week day or time. In the field Krzywa (Curve) a number of the selected curve of heating is displayed. If no CO circuit (configuration switch S6=0) was assigned to the regulator, CO settings have no impact on the regulator s operations. Change of the economical temperature place the cursor under the temperature value T.Eko (buttons, ), press the button OK, using the buttons, set the first digit of the economical temperature, go to the edition of the second digit by pressing, using the buttons, set the second digit of the economical temperature, press OK to confirm the new value of the economical temperature or press ESC to exit the edition the previous value of the economical temperature will not be changed. Change of the comfortable temperature value place the cursor in the field T.Kmf (buttons, ), follow the same pattern like in a case of the change of economical temperature. Change of the active program using the buttons, place the cursor in the field Prg, press the button OK - the cursor will change to a pulsing rectangular, pressing the buttons, select a desired program of operations, press the button OK to accept the choice or press the button ESC to exit the edition. Manual for RX910-FOX Page 20 of 28

21 Change of a number of the heating curve place the cursor in the field Krzywa (Curve) (buttons, ), press the button OK, using the buttons, set the first digit of the curve number, go to the edition of the second digit by pressing, using the buttons, set the second digit of the curve number, press OK to confirm the new value of the curve number or press ESC to exit the edition the previous value of the curve number will not be changed. PROGRAM CO The CO week program includes the program for working days of the week (Pn-Pt /Mon-Fr/), the Saturday program (So) and the Sunday program (Ni). One or two time intervals with comfortable temperature (high column) can be set for each of the programs. In the other periods of a day, a reduced temperature (low column) will be maintained. The function Program CO enables displaying and changing of the week program. The screen displayed after the function activation is as below. In the first line of the screen an approximate graphical interpretation of the day program is displayed. In the second line of the screen, times of the beginning and end of the first interval with the comfortable temperature are displayed. In the third line of the screen, times of the beginning and end of the second interval with the comfortable temperature are displayed. In the fourth line, a day (days) of the week to which the program refers is (are) displayed. If no CO circuit (configuration switch S6=0) was assigned to the regulator, CO program has no impact on the regulator s operations. Change of a day of the week using the buttons, place the cursor in the field Dzień (Day) (under the first letter of a week day), press the button OK - the cursor will change to a pulsing rectangular, pressing the buttons, set a desired week day (Pn-Pt (Mon-Fr), So (Sat) or Ni (Sun)), press the button OK to accept the choice or press the button ESC to exit the week day edition. Manual for RX910-FOX Page 21 of 28

22 Change of the day program After displaying a suitable day program you can edit it, i.e. change times of the beginning and end of intervals with the comfortable temperature. However it must be remembered that successive times have to be ascending. By default the economical temperature is maintained from the midnight. To change the time of the beginning/end of the time interval: place the cursor under the hour of the beginning/end of the interval, OK press the button first digit of the hour, - the cursor will change to a pulsing rectangular in the field of the pressing the buttons, set the first digit of the hour, pressing the button or place the cursor on the second digit of the hour, pressing the buttons, set the second digit of the hour, OK press the button to accept the choice or press the button ESC edition, Times of the interval beginning and end can be set accurate to 1 hour. to exit the hour Day program: Means that on Sunday for the whole 24-h period the economical (reduced) temperature will be maintained. Program: means that on working days from 06:00 to 14:00 and from 16:00 to the end of the 24-hour period, the comfortable temperature will be maintained. Manual for RX910-FOX Page 22 of 28

23 CWU Settings After starting the function CWU Settings the following screen is displayed: In the field T.Eko the economical (reduced) temperature value in the CWU container is displayed low columns in brackets are the symbol of the temperature. In the field T.Kmf the comfortable (regular) temperature value in the CWU container is displayed high columns in brackets are the symbol of the temperature. The economical and comfortable temperatures are the terms associated with the week program. More about the week program in section PROGRAM CWU. In the line Prg an active CWU program is displayed: Tygodniowy (Week) or Ferie (Holiday). A selection of the option Tygodniowy (Week) will result in CWU heating according to the week program (see Program CWU). If the option Ferie (Holiday) is selected, the regulator will maintain the economical temperature in the CWU container regardless of a week day or time. The field PriorCW may have values Tak (Yes) or Nie (No). If the value Tak (Yes) is set, during CWU heating power supply will be turned off for the CO circuit by closing the mixing valve. If PriorCW:Nie (No), during CWU heating, the CO circuit will have regular power supply. If no CWU circuit (configuration switch S7=0) was assigned to the regulator, CWU settings have no impact on the regulator s operations. Settings in the CWU settings screen can be changed in a manner corresponding to the one described in chapter CO Settings. CWU PROGRAM The function CWU Program enables displaying and changing of the week CWU program. The screen displayed after the function activation is as below. The CWU screen is operated in a manner analogous to the one described in chapter CO PROGRAM. Manual for RX910-FOX Page 23 of 28

24 If no CWU circuit (configuration switch S7=0) was assigned to the regulator, CWU program has no impact on the regulator s operations OTHER SETTINGS After starting the function Other Settings the following screen is displayed: In the field TzadCT a minimum temperature value set for the cascade is displayed at the closed binary input WeBin. Upon designing the systems using the function of the regulator, a removal of heat produced by the cascade should be assured together with the closure of WeBin input (e.g. by switching on the process circulation pump, opening of the valve, etc.). Heat removal, especially in the mode Lato (Summer) should be switched off with a time delay after divergence WeBin. SERVICE After starting the function Serwis (Service), the following screen will be displayed: SERWIS Service, Podaj haslo enter the password. After entering the correct password, the following screen with the service menu will be displayed: Param. CO/CWU - CO/CWU parameters, Param. kotla boiler s parameters, Param. kaskady cascade s parameters, Test wyjsc Output test. Manual for RX910-FOX Page 24 of 28

25 A position of the cursor (choice of the active element) is changed by pressing the buttons,. Press OK to start the function under which the cursor is placed. Press ESC to return to the main menu. CO/CWU PARAMETERS After starting the function CO/CWU Parameters, the following screen will be displayed: OK Press when the cursor is set under the arrow to display the screen with the other CO/CWU parameters: Parameter values can be edited in the same manner as previously described for other values. To return to the previous screen, press the button ESC. BOILER S PARAMETERS After starting the function Boiler s Parameters, the following screen will be displayed: To go to the next screen with the boiler s parameters, use the arrow: Manual for RX910-FOX Page 25 of 28

26 Boiler s parameter values can be edited in the same manner as previously described for other values. To return to the previous screen, press the button ESC. Parameters WybPPodm and ZwlZamKla are in the boiler s parameters for systems U0 and U1. For systems U2 and U3, (unimportant parameter) and WybPomKot respectively are displayed instead. CASCADE S PARAMETERS After starting the function Cascade s Parameters, the following screen will be displayed To go to the next screen with the cascade s parameters, use the arrow: Cascade s parameter values can be edited in the same manner as previously described for other values. To return to the previous screen, press the button ESC. Settings of the cascade s parameters in the slave regulators have no impact on the regulation. OUTPUT TEST The function Output test enables checking of the regulator s outputs and correct connection of devices. After starting the function, a screen with the device status is displayed with an option to change the status of each of them: Press the button ESC to return to the service menu. Manual for RX910-FOX Page 26 of 28

27 Press the button OK function Output test: with the cursor placed under the arrow to go to the next screen of the In system U2 and U3 in the field KlapaKotla (Boiler s gate) a position PompKotlow (Boiler s pump) is displayed. The status OTW means the boiler s pump is started, the status ZAM means the boiler s pump is stopped. Press the button ESC to return to the previous screen. The status of outputs may be changed in the following way: using the buttons, place the cursor in a field of a selected device, press the button OK, using the buttons, change the device status to the desired one, press the button OK. When screens of the function Output test are displayed, the outputs assume statuses complying with the ones displayed in the screens. After returning to the service menu, the regulator sets the outputs to the statuses resulting from the automatics operations. MANUAL OPERATION After setting the operating mode switch to the position manual, the regulator s outputs assume the following statuses: CWU charging pump CO circulating pump CO mixer servo motor Boiler mixer servo motor Pre-mixing pump CWU circulating pump Boiler gate Boiler pump 1st degree of the burner 2nd degree of the burner enabled enabled remains in the last position opens enabled disabled opens enabled enabled enabled The feeding temperature can be determined by setting the boilers regulation thermostats. The CO installation water temperature can be determined by manual setting of the mixer in a suitable position. Manual for RX910-FOX Page 27 of 28

28 BASIC TECHNICAL PARAMETERS Power supply 230V/50Hz 4,5VA Ambient temperature from +5 C to +40 C Number of measurement inputs 10 Temperature sensors KTY Measurement ranges from -29 C to +95 C Temperature reading error ±1 C Control outputs 9 transmitter outputs Outputs carrying capacity 200VA/230V Clock maintenance minimum 1000 hours Dimensions (mm) 144x96x85 Weight 0,6kg Protection level II Protection degree IP40 Software class A Manual for RX910-FOX Page 28 of 28