idigit CONTROL INSTALLER MANUAL Digital thermostat for fan coil units Rev100

Transcription

1 idigit CONTROL Digital thermostat for fan coil units INSTALLER MANUAL

2 Termostato digital para ventiladores-convectores Thank you for trusting the Hitecsa Products. Our company has been offering the market an extended range of specialized units for air conditioning and cooling installations for over 35 years. Our approach is based on efficiency, adaptability, usability and practical solutions. This has been the hallmark of our product catalogue. The versatility of our factory allows us to contribute solutions, almost tailored to each project s specifications, in search of a solution to every problem that arises in design and implementation of air conditioning installations. From all of us at Hiplus Aire Acondicionado, once again, thank you very much Rev100

3 idigit Control INDEX GENERAL OPERATING FEATURES... 4 TECHNICAL SPECIFICATIONS Fan selection... 7 ECONOMY-COMFORT operating mode selection... 8 Clock time and date programming... 8 Weekly programming... 8 Alarm message display PARAMETER SETUP MENU Thermostat look Simplified internal diagram SPECIAL FUNCTIONS CN CN2 (available for idigit 2 and 3 models) Keyboard lock Water temperature display Humidity control ModBus 485 communication port (available for idigit models) POSSIBLE CONFIGURATIONS tubes system (3 points valve) Water inlet temperature sensor Water minimal temperature thermostat Remote air inlet temperature sensor Input configuration J1 (RJ45) ELECTRICAL CONNECTION DIAGRAM, 12 POLE TERMINAL BOARD:

4 GENERAL OPERATING FEATURES Digital electronic thermostat, large blue LCD display with adjustable backlighting. Developed and designed to control fan coil and hydronic cassette units. Hourly and weekly programming as standard. Perennial calendar clock and integral battery as standard. RS485 bus connection fitting as standard. Device totally controlled using Modbus communications protocol. Operation with 2 pipe 4 pipe fan only heat pump (P04) systems. Control of electric heater as alternative or addition (P07). Control of outdoor air recycling gate valve. Control of humidification/dehumidification/read only with internal humidity sensor (optional). Automatic/manual/centralized setting of SUM/WlN operating mode switching (P09). Continual or thermostat controlled fan operation (P05). Automatic/manual fan speed switching. Air temperature monitored by internal probe or remote air probe (automatic probe recognition). Antifreeze function even with thermostat off. Filter fouling alert as standard. Fan trigger temperature thresholds can be set separately for heating and cooling operation (P18 and P19). SUM/WlN switching temperature thresholds can be set separately for heating and cooling operation (P16 and P17). Automatic SUM/WlN mode switch on the basis of output temperature (P08 and P09). Automatic SUM/WlN mode switch on the basis of air temperature (P09). Centralized comfort/economy operating control. Control of ON OFF valves, modulating valves and floating valves integrated in a single product code. Control of conventional 3 speed fan units and energy saving brushless units. Inputs for control of window contact, economy contact, auxiliary contact, and bathroom and fire alarm. Inputs for hotel functions, such as: bathroom alarm fire alarm room empty/occupied. Outputs for hotel functions, such as: courtesy light control control of bathroom fan with room occupied. Monitoring of fan power drawdown with control of failure thresholds and alarm output (P35 and P36). Setting/reduction of length of temperature scale controllable by parameters (P23 and P24). Keyboard lock function. Diagnostic function for troubleshooting of thermostat and system malfunctions. Quiet regulation thanks to use of triac control technology. 4

5 TECHNICAL SPECIFICATIONS Power supply: 230V~ -15% +10% 50HZ Power input: 2,0VA Operating temperature: 0ºC to 40ºC Storage temperature: -10ºC to +50ºC Operating humidity: 20% to 80% RH without condensation Storage temperature: 20% to 80% RH without condensation Case: ABS V0 self-extinguishing RAL9001 Degree of protection: IP20 Dimensions: 110 x 110 x 40 mm (L x A x P) Weight: 330 g AMBIENT AIR PROBE: Setting range: 5ºC to 40ºC (configurable) Sensor used: NTC 10kΩ@ 25ºC +/- 1% Air sensor accuracy: +/- 1ºC Air sensor resolution: 0,1ºC Display range: 0ºC to 50ºC Hysteresis: Regulation: 2% a 100 % proportional band Wiring: Max. 15 m. shielded cable 0,5 to 1,5 mm² DISCHARGE PROBE: Sensor type: NTC 10kΩ@ 25ºC +/- 1% Accuracy: +/- 1ºC Resolution: 0,1ºC Display range: 0ºC to 50ºC Wiring: Max. 15 m. shielded cable 0,5 to 1,5 mm² HUMIDITY PROBE: Sensor type: Capacitive Display range: 10% to 99% HR Accuracy: +/- 1% Hysteresis: 1% OUTPUT FLOW: Fan: Valves: Inductive charge valve: 230V~ cosɸ=1 general 230V~ cosɸ= 1 x output 10 VA x output 5

6 The user controls the unit by means of four keys beside the display: Key Main function Secondary function Temperature setpoint increase Scroll/increase variables and parameters Temperature setpoint decrease Scroll/decrease variables and parameters ON OFF Menu ESC function Access/scroll menus Setting save function Button (Plus) Press this button to access display of the current temperature setpoint, press it again to increase the setpoint in steps of 0.1 C each time it is pressed, or hold down for 5 to increase the setting at high speed. After 10 the device automatically quits the temperature setpoint setting function; to quit faster, press the on off key for a short time. This key is also used for surfing, scrolling and increasing within the various programming menus. Button (Minus) Press this button to access display of the current temperature setpoint, press it again to decrease the setpoint in steps of 0.1 C each time it is pressed, or hold down for 5 to decrease the setting at high speed. After 10 the device automatically quits the temperature setpoint setting function; to quit faster, press the on off key for a short time. This key is also used for surfing, scrolling and decreasing within the various programming menus. Button (On/Off) Press for 2 seconds to switch the device on or off; with the thermostat off, OFF appears on the display, while the room temperature, clock, alarms (if any) and relative humidity (optional) display functions are still operational. This key is also used to quit the various setup menus. Button (Menu) Press quickly to access the user setting submenus; FAN flashes on the display. Press + or to select the various menus in rotation: 6

7 Fan selection Press the menu key, scroll through it with the + key and select FAN with the menu key. Then press the + key again to select the fan operating speed, manual with SP 1 SP 2 SP 3 or automatic with AUT: = Minimum speed set (33% for brushless electronic fans). = Medium speed set (66% for brushless electronic fans). = Top speed set (100% for brushless electronic fans). = The thermostat will select the fan operating speed automatically in response to the difference between the room temperature and the temperature set. The maximum speed will be reached on the basis of the proportional band set (P11). Confirm the setting required by pressing the menu key. If thermostat operating mode is selected (P05=0) the fan stops when the temperature required (setpoint) is reached. If continual operating mode is set (P05=1) the fan continues to operate at the speed set if manual selection mode is active, or at the minimum speed if the current selection mode is automatic. If the system output probe is connected, the fan operates on the following principle: - 2 pipe system: the device responds to both the minimum fan speed enabling (P18) and maximum fan speed enabling (P19) signals. - 4 pipe system: the device responds to the minimum fan speed enabling signal (P18) but ignores the maximum fan speed enabling (P19) signal Note: when the fan is operating on the basis of the enabling signals, it does not start until the temperature set in the relative parameter is reached. Heating / cooling / fan operating mode Press MENU key, scroll through it with the + key and select MODE with the menu key. Then press the + key again to select the operating mode required: COOL, HOT, FAN. = Cooling function = Heating function = Fan only function Confirm the setting required by pressing the menu key. WARNlNG: if automatic/centralised operating mode change has been selected (P09) the MODE selection menu will not appear. 7

8 ECONOMY-COMFORT operating mode selection Press MENU key, scroll through it with the + key and select ECON with the menu key. Then press the + key again to select one of the two operating modes: ECONOMY and COMFORT. Confirm the setting required by pressing the menu key. = COMFORT mode, the thermostat operates on the basis of the temperature setpoint. = Selecting the ECONOMY function saves energy by varying the temperature setpoint by the value set in parameter P10, reducing the setpoint in heating mode and increasing it in cooling mode. This function can be enabled even in centralised control mode by closing the contacts of pin 1 of the RJ45; the function will be disabled when the contact is broken. Clock time and date programming Press the menu key, scroll through it with the + key and select TIME with the menu key: HRS: the hour figures flash: use the +/ keys to set the current hours and confirm with the menu key. MIN: the minute figures flash: use the +/ keys to set the current minutes and confirm with the menu key. DAY: the day figures flash: use the +/ keys to set the current day and confirm with the menu key. MON: the month figures flash: use the +/ keys to set the current month and confirm with the menu key. YEA: the year figures flash: use the +/ keys to set the current year and confirm with the menu key. Weekly programming Press the menu key, scroll through it with the + key and select PROG with the menu key: Select the day of the week to be programmed by scrolling to it with the + key: SUN = Sunday MON = Monday TUE = Tuesday WED = Wednesday THU = Thursday FRl = Friday SAT = Saturday Selecting the day of the week to be programmed and confirming it with the menu key access the time band F1 and F2 programming function: Press the menu key and set the starting hours for band F1 Press the menu key and set the starting minutes of band F1 Press the menu key and set the operating temperature for band F1 Press the menu key and set the starting hours for band F2 Press the menu key and set the starting minutes of band F2 Press the menu key and set the operating temperature for band F2 Use the + key to select another day for programming or quit by pressing ESC. Table 1: Example of daily programming settings: 09:00 with F1 setpoint 20 C 20:00 with F2 setpoint 15 C 8

9 Weekly programming Table 3: Example of weekly time program set in table 2 Day F1 Time F1 Setpoint F2 Time F2 Setpoint The icon on the display illuminates to indicate that the thermostat is performing a daily program. 9

10 Alarm message display This menu can only be accessed when at least one alarm state is present; the icon on the display illuminates to indicate that one or more alarm messages are present. Press the menu key, scroll through it with the + key and confirm the selection of ALL with the menu key. The alarm code will appear; scroll with the + key to check for any other recorded alarms. Therefore, if there are no alarms present the ALL menu will not be available. Tabla 4: alarms Display message Alarm description Alarm reset ALL FlL : filter working hours (P22) exceeded ALL Air: internal air sensor failure ALL Prb: no internal or external air sensor connected Curr max: fan maximum current threshold (P36) exceeded Curr min: fan minimum current threshold (P35) not reached Display the alarm and press the menu key for 3 Automatic when failure is eliminated Automatic when failure is eliminated Display the alarm and press the menu key Display the alarm and press the menu key PARAMETER SETUP MENU The parameter setup menu is divided into two levels. The first level is protected against accidental access and modification, while the second level is protected by a password. To access to the first level parameter menu, press the menu key, use the + key to scroll the menu and confirm the Par option by pressing the menu key for 5. Parameter P01 will be displayed; the +/ keys can be used to scroll from parameter P01 to parameter P10. Select the parameter to be modified and confirm the selection with the menu key. The parameter flashes. Modify it with the +/ keys and confirm/save the change with the menu key. Press the ESC (ON OFF) key twice in succession to return to the display's home screen. The second level parameter menu is only for the use of the authorised technical service, and is protected by a password. Press the menu key, use the + key to scroll the menu and confirm the PAr option by pressing the menu key for 5. Parameter P01 will be displayed. Press the (menu) key to display P2LE on the display. Confirm the selection with the menu key and enter the password using the +/ keys. Once the password has been entered, confirm it with the menu key to access the list of parameters P11... P52. Scroll through the parameters with the +/ keys, select the parameter to be modified and confirm the selection with the menu key. The parameter now flashes. Modify it with the +/ keys and confirm/save the change with the menu key. Press the ESC (ON OFF) key twice in succession to return to the display's home screen. 10

11 Thermostat look Simplified internal diagram Installation on the wall 1. The thermostat consists of 2 parts: the back cover with the terminal block and the base with the electronics. To facilitate the assembly of the two parts are supplied separately (unhooked). Once the electrical connections have been made to the terminal block, the two parts must be joined by means of the tabs present at each corner of the box. Insert the 4 tabs in the 4 slots with a slight pressure with the hand until you hear the "click", it is advisable to hook the side of the terminals first. Figure B shows how to insert the flange into the slot. 2. The standard back cover is designed to be mounted with the 503 recessed box. If it is not supplied, it is possible to replace it with the wall-mounting cover, this accessory is purchased separately and has a depth greater respect to the standard back cover because the terminal block is inside (figure C). 11

12 SPECIAL FUNCTIONS CN1 The input can be used to display information from the outside. It is necessary that P33 = 1 to activate the function. The input is manageable with a voltage free contact. P32 = 1: whern it is open, the icon lights up on the display. P32 = 0: when it is closed, the icon lights up on the display. CN2 (available for idigit 2 and 3 models) Voltage free contact output for motor alarm. It is necessary that P35 and P36 are different from 0 to activate this function. If current input by the motor exceeds stablished min/max limits (see parameters P35 and P36), the contact closes. In case of exceeding P35 margin, the icon menu. lights up on the display with the indication CURR MIN of the Parameter programming In case of exceeding P36 margin, the icon menu. ligths up on the display with the indication CURR MAX of the Parameter programming Keyboard lock It is possible to lock the use of the keys by pressing the keys ON-OFF and + at the same time during 3 seconds. To unlock the use of the keys, proceed in the same way. Water temperature display If it is connected to a water temperature sensor, it will be possible to display on the screen the record of temperature in real time. Keep pressed the Menu key during 5 seconds, the screen will show the message TH2O and the temperature. After 5 seconds the system will automatically exit from this mode. Humidity control If P12 = 1 and P15 =1: Auxiliary output (Pin3-XA1) is ON (230Vac) when the ambient humidity is lower than the programmed one. If P12 = 2 and P15 =1: Auxiliary output (Pin3-XA1) is ON (230Vac) when the ambient humidity is higher than the programmed one. If P12 = 3: When ambient temperature = programmed temperature, cold output is ON (230Vac) if ambient humidity is higher than the programmed one. To change the humidity setpoint: press the ON/OFF and Menu keys at the same time. ModBus 485 communication port (available for idigit models) Specifications on demand See P42 for addressing 12

13 POSSIBLE CONFIGURATIONS 13

14 2 tubes system (3 points valve) LEGEND L = N = M1 = I = II = III = XA1 = YV5 = PHASE 230 Vac NEUTRAL 230 Vac MOTOR FAN 230 Vac MINIMUM SPEED MEAN SPEED MAXIMUM SPEED idigit TERMINAL COLD / HEAT VALVE 230 Vac (3 POINTS) Water inlet temperature sensor Operation in heating and refrigeration. 1. Sensor is located at the top of the valve, in automatic station change and 2 pipes with 3 way valves system. 2. Sensor is located on heating coil, in the case of 4 pipes system. Water temperature sensor NTC10K@25ºC Water minimal temperature thermostat Operation in heating Remote air inlet temperature sensor Always use in case of the installation of a regulator in the unit. Sensor is automatically recognised by the thermostat. When the sensor is connected, the anti-stratification cycle is activated. It activates the fan at minimum speed during 90 seconds every 15 seconds. Water temperature sensor NTC10K@25ºC 14

15 Input configuration J1 (RJ45) 15

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18 Parameters programming menu Table 5: 1st level parameters Parameter Function Default setting Possible settings P01 TIME PROGRAMMING 0= off 0 = off 1 = on PtaB PRESET PARAMETER SETUP P03 NEUTRAL ZONE 4 C 0.10 C 0 = 2 pipes P04 SYSTEM TYPE 0 = 2 pipes 1 = 4 pipes 2 = fan only P05 FAN 1 = continuous P06 OUTPUT TYPE 0 = ON-OFF 0 = thermostat 1 = continuous 0 = ON-OFF valves 1= EV solenoid valve with temperature algorithm 2= floating 2 pipes 0 = none P07 ELECTRIC HEATER 0 = none 1 = replacement 2 = additional 3 = additional EH with SM<P16 0 = no probe P08 WATER PROBE 0 = no probe 1 = SUM/WIN mode switching 2 = fan enabling 3 = SUM/WIN mode switching + fan enabling 0 = centralised/ SM water probe P09 SUMMER / WINTER 1 = manual 1 = manual from keyboard 2 = in response to room temperature 3 = room temperature + water NTC P10 DELTA SETPOINT ECONOMY 2 C 1.10 C P2LE ACCESS TO SECOND LEVEL PARAMETERS

19 Parameters programming menu Table 6: 2nd level parameters Parameter Function Predetermined programming Possible programming P11 PROPORTIONAL BAND 2 C C 0 = display only P12 RH CONTROL MODE 0 = display only 1 = humidification 2 = dehumidification 3 = COOL + RH P13 RH. PROPOR. BAND 5% 5.20% P14 FULL RESET REG. TIME 6 (X 10") (x 10 ) 0 = electric heater P15 AUXILIARY OUTPUT FUNCTION 0 = electric heater 1 = humidifier/dehumidifier 2 = gate valve operation 3 = control of lights P16 WINTER ON 35.0 C C P17 SUMMER ON 15.0 C C P18 WINTER FAN ON 35.0 C C P19 SUMMER FAN ON 15.0 C C P20 ANTIFREEZE ºC 4.0 C C P21 FLOATING ACUATOR STROKE P22 FILTRO FOULED 6 (x 300h) 0.20 (x 300h) P23 SETPOINT BOTTOM LIMIT 10.0 C C P24 SETPOINT TOP LIMIT 30.0 C C P25 ROOM PROBE OFFSET 0.0 C C P26 HUMIDITY PROBE OFFSET 0% 20%...+20% P27 P28 FAN START DELAY IN HEATING MODE FAN START DELAY WITH ELECTRIC HEATER P29 FAN STOP DELAY WITH ELECTRIC HEATER P30 WINDOW CONTACT 0 = contact closed 0= contact closed = window open 1 = contact open = window open P31 ECONOMY CONTACT (RJ45-J1 connector) 0 = contact open 0 = contact open= function no valid 1 = contact open = function no valid P32 AUXILIARY CONTACT (CN1 connector) 1 = contact closed 0 = contact open = input active 1 = contact open = input active 19

20 Table 6: 2nd level parameters Parameters programming menu Parameter Function Predetermined programming Possible programming 0 = fan TM thermostat P33 AUXILIARY DIGITAL INPUT (CN1 connector) 0 = fan TM thermostat 1 = bathroom alarm 2 = smoke alarm 0 = configuration 0 P34 INPUT CONFIGURATION (RJ45 - J1 connector) 0 = configuration 0 1 = configuration 1 2 = configuration 2 3 = configuration 3 P35 MINIMUM CURRENT THRESHOLD 0 = control function on 0.50 (ma x 10) P36 MAXIMUM CURRENT THRESHOLD 0 = control function off (ma x 10) P37 SENSOR TYPE 0 = NTC 10K 0 = NTC 10K 1 = NTC 20K P38 AIR SETPOINT 20.0 C C P39 MEASURING SCALE ºC/ºF 0 = C 0 = C 1 = F P40 BOX BACKLIGHT MINIMUM LIGHT IN STANDBY MODE 0 = off 0.5 P41 LCD BACKLIGHT MINIMUM LIGHT IN STANDBY MODE 0 = off 0.5 P42 MODBUS NETWORK ADDRESS (0 = broadcast) P43 ON-OFF VALVE HYSTERESIS (%) 5% 2.100% P44 VALVE OPENING TIME IN HP MODE P45 VALVE OPENING PERIODIC CYCLE IN HP MODE P46 WINTER SETPONT WITH SETUP 3 (HOTEL MODE) 18.0 C 5.0 C.30 C P47 SUMMER SETPOINT WITH SETUP 3 (HOTEL MODE) 27.0 C 5.0 C.30 C P48 HUMIDITY (RH) SETPOINT % P49 MODULATING VALVE MINIMUM LIMIT 0% 0. 50% P50 MODULATING VALVE MAXIMUM LIMIT 100% 50%...100% P51 FAN MODULATING VALVE MINIMUM LIMIT 0% 0. 50% P52 FAN MODULATING VALVE MAXIMUM LIMIT 100% 50%...100% P53 ENABLING FAN SETTING SPEED MANUAL 1 0 = OFF 1 = ON P54 MULTIPLICATION CONSTANT MOTOR CURRENT SENSOR 100 % 50 %

21 ELECTRICAL CONNECTION DIAGRAM, 12 POLE TERMINAL BOARD: Com Legend: LC = microprocessor controller TK1-TK2-TK3 = fan control triac max 1ª 230 Vac TK4-TK5-TK6 = solenoid valve + heater control triac max. 0.1A Vac VF = floating valve VC = cooling valve VH = heating valve R = auxiliary output / heater M = fan 230 Vac SA = external air probe TM = minimum temperature DM = Brushless fan modulating output 0/10V SM = water output probe 21

22 22 All rights reserved to make modifications to this catalogue without previous notice.