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DESCRIPTION
The Kronos GA11 is a weekly programming digital chronothermostat
used for the remote control of the ULSA gas‐fired air heaters.
ATTENTION : Before turning on, check the cables (incorrect wiring
may damage the thermostat and compromise safety.
Connect and disconnect the control sytem only in absence of voltage.
Avoid exposing to dripping water.
GENERAL FEATURES
‐ Graphic LCD display (128x64 px)
‐ Backlight timer 20 seconds
‐ LED for diagnostics/signaling
‐ 7 variabele function keys
‐ Weekly programming
‐ 4 temperature levels (T0, T1, T2 &
T3)
‐ Resolution (0.5°C temperature set)
‐ Resolution (0.1°C temperature read)
‐ Minimum interval programming :
15''
‐ SELV insulation (Safety Extra Low
Voltage)
‐ Bi‐polar connection, non‐polarized
TECHNICAL DATA
‐ Operating temperature : 0°C +50°C
‐ Humidity : 95% maximum at 40°C
‐ Power sypply : low voltage (3V) (via communication with control board of the air heater)
‐ Protection degree : IP30
‐ Dimensions : 140x90x32mm
‐ Compliance : directive 2004/108/CE (EMC) / directive 2006/95/CE (LVD)
INSTRUCTIONS FOR USE
The buttons have any versatile utilization depending on the selected menu. The use of buttons is facilitated by the
indications with text, icons and other graphics that appear on the display.
The vertical buttons on the left : used to navigate the setup menu or to select the parameters
The vertical buttons on the right : used to vary temperature and function increase/decrease (+/‐)
The horizontal buttons at the bottom : used to confirm or cancel the settings or to enter/exit the submenus
The center button : used for special functions (e.g. unlock heater)
Under the center button there is a LED giving following information :
‐
Continuous red LED : error or no communication with the heater
‐
Intermittent red LED : lockout heater
‐
Intermittent yellow LED : anomaly
‐
Continuous green LED : chronothermostat is resuming work after power failure
®
INSTALLATION INSTRUCTIONS
OPTION 952 : Thermostat Kronos GA11
1/12
17040952—ENG
Figure 1
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Table of Contents
Related Manuals for Reznor Kronos GA11
Summary of Contents for Reznor Kronos GA11
- Page 1 ® 17040952—ENG INSTALLATION INSTRUCTIONS OPTION 952 : Thermostat Kronos GA11 DESCRIPTION The Kronos GA11 is a weekly programming digital chronothermostat used for the remote control of the ULSA gas‐fired air heaters. ATTENTION : Before turning on, check the cables (incorrect wiring may damage the thermostat and compromise safety. Connect and disconnect the control sytem only in absence of voltage. Avoid exposing to dripping water. GENERAL FEATURES ‐ Graphic LCD display (128x64 px) ‐ Backlight timer 20 seconds ‐ LED for diagnostics/signaling ‐ 7 variabele function keys ‐ Weekly programming ‐ 4 temperature levels (T0, T1, T2 & T3) ‐ Resolution (0.5°C temperature set) ‐...
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Page 2: Main Screen
17040952—ENG The most frequently used functions by the user are available in the main menu. It is possible to quickly browse through the pages. The first time or after a reset, the language menu appears on the display. ITALIANO By pushing OK you confirm the selection. FRANCAIS Through the SETTING MENU this choice can still be changed later. ENGLISH NEDERLANDS DEUTSCH Then the current time can be entered. The buttons on the left allow you to select the menu – the buttons on the right allow you to change the values. Push the OK button to validate. The ESC button allows you to continue without making changes to the time settings. MAIN SCREEN Following items are shown on the main screen : ‐ the day of the week (intermittent if not updated) ‐ the current time (intermittent if not updated) ‐ the temperature measured (measurement every 10sec) ‐ an icon indicating the function of the active thermoregulation (automatic, manual, summer or standby) Automatic Temperature control environment Manual Temperature control environment in according to the weekly program accordance with user‐selected temperature set by the user. Program seen as a (thermostat function) graph of the current day. Summer Temperature control environment Standby Temperature control environment disable. - Page 3 17040952—ENG The standby mode allows you to turn off the MANUAL MODE ‐ The buttons on the right marked system (temperature control environment & with + and ‐, allow to vary the temperatures ventilation are disabled). required for the automatic program (T0, T1, T2, T3). In manual mode they allow to vary the set The first level menu is circular meaning that all point room temperature. By pushing the buttons screens are accessible by pushing the on the left, marked with arrows, you can browse the pages of first level menu. OVERTIME MODE ‐ Continuing and pushing the When pushing the button following screen button ▼ again, you can choose to activate the appears. operating mode "Overtime". In operating mode “Overtime”, the room thermoregul ation Pushing the buttons + and –allows to vary the follows a temperature. Activate the manual mode by pushing temperature the OK button. for a duration set by the user. The duration of one step is 15 minutes, the SUMMER MODE ‐ Pushing the button again maximum period is 240 minutes. activates the Pushing the +/‐ buttons you can set the summer temperature and then after pushing OK button you...
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Page 4: Setting Menu
17040952—ENG MAXIMUM POWER ‐ By pushing the button SETTING MENU again you Programming enter the menu for This submenu allows you to setting manage maximum power. temperature control Here it is environment, possible to limit the power level required for heating the weekly program, time setting and language choice. environment. Selecting the option ‘Programming’ you enter the More details are given in the section ‘Thermo‐ regulation’. weekly program submenu. PARAMETERS MENU ‐ Pushing the button Choosing the option again, enters the submenu PARAMETERS ‘Temperature’ MENU. you enter in the The menu of the 4 parameters temperature levels T0, T1, T2 & T3. - Page 5 17040952—ENG In the first step is set the starting time by pushing Heating the + and ‐ buttons at intervals of at least 15 control minutes and you confirmby pushing OK. If you This submenu want to quit the programming of the selected day, concerns the push ESC. method used by the chrono‐ In the second thermostat for controlling room temperature. step, pushing the ◄ and ► This menu allows you to set the differential, which you select can vary between 0.2 º C and 5.0 º C (default value: which of the 2.0 º C). d is the thermal differential, Max is the four maximum rate, Ti and Ta stand for respectively programmed room temperature set and room temperature temperatures will be associated to the time slot. measured. Push OK to confirm or ESC to return The required percentage P is calculated as follows: In the third step if Ta ≤ Ti ‐ d then P = Max you select the if Ti – d < Ta < Ti then P = ( Max / d ) x ( Ti – Ta ) ending time. if Ta ≥ Ti then P = 0 The final time cannot be less Example 1: Ti = 20,0ºC than the initial Max = 100% time.
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Page 6: Parameters Menu
17040952—ENG PARAMETERS MENU After that following This submenu screen permits the appears, remote where you managing of can enter, the air heaters with the + (see also and ‐ relevant buttons, the desired value. section at p 9). In the event, that the board does not include the By pushing the up and down buttons you scroll writing of this TSP (read only) the changes made to it through the various items. will have no effect. The number of TSP depends on the control board of the slave (hot air generator), the chronothermostat will support a maximum of 255. Settings (password 10) : allows you to view and set the para‐ TSET meters on the The fourth option, of the "MENU PARAMETERS", if remote available, system. By allows you to pushing OK enter the you activate temperature the first page Tset:... - Page 7 17040952—ENG Restart : In addition pushing from the main screen, The function simultaneously the "Restart", serves to buttons 5 and 6 reconfigure the shown below, in chronothermostat any operating in the case has mode, even with been made an key lockout on, you intervention can display the hardware or software in the control board of the "Read Slave". generator. Activate the reconnection is equivalent to physically disconnect the communications connector If Kronos GA11 is connected to the electronic control from the chronothermostat and then reinsert it. unit REG_ROB instead of to the electronic control unit TC340, the information displayed in the "Read Slave" vary as shown below.
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Page 8: Installation On The Wall
17040952—ENG USE OF BATTERIES/BACKLIGHT Figure 2 The chronothermostat is provided with an internal energy store which can compensate for a power cut‐off for a few hours; in this way the user will not have to set the current time, room temperatures and week program again. However, the internal energy store consumption time varies depending on the room temperature and humidity, as well as on the ageing of components. In order for the internal energy store to be fully effective, the chronothermostat must have been correctly Then is possible to wire the circuit board unit using energized for a couple of days at least without the appropriate terminal, regardless of the polarity interruption. If frequent and/or long cut‐offs of the (the two conductors can be exchanged). It is boiler power supply are expected, it is possible to avoid recommended to use a twisted pair cable (example losing chronothermostat data by installing two alkaline H03RR‐F o H03VV‐F) size between 0,5 mm2 and 2,5 batteries type AAA LR03 1,5V into the appropriate slot mm2, the length should not exceed 50m (eg : GA11 – on the fixing base. In this way, the additional internal 50m – unit 1 – 50m – unit 2 – 50m – unit 3). The energy store, made by new batteries, enables to resistance of each conductor, in any case, should not preserve data for a period even longer than one year exceed 5 ẇ. In environments with electromagnetic under no power supply conditions. It is advisable not to interference it is recommended to use a shielded keep batteries inside the chronothermostat for a long twisted pair cable. time during normal operation (power supply presence) to prevent any battery liquid leakage from damaging the Figure 3 : Fixing holes chronothermostat itself. Finally, please note that Kronos GA11 does not provide any information about the presence of batteries or their charging status. WARNINGS ABOUT THE BACKLIGHT The display backlight is obtained from the reserve described in the previous paragraph. It is possible, therefore, that in case of newly connected chronothermostat the brightness is... -
Page 9: Parameters - Overview
17040952—ENG PARAMETERS ‐ overview Parameter Value Control range Default Unit of measurements P03 Mode / DT1_DT4 0 … 10 [ ‐ / °C ] ON/OFF control (setting = 0), 0‐10V mode (setting = 1) or duct mode (values from 2 to 10) P04 Cv_temperature 0 … 30 [ °C ] Setting Cv temperature : value = 0 = OFF; / value between 1 and 30 = ON (constant ventilation function) Constant ventilation if value of temp. ≠ 0°C (eg : value < 20°→ pas de ven l. / value > 20°C → vent. P05 Offset_EF_MAX 0 … 50 [ % ] To reduce maximum speed venter motor (factory setting) Example: Max. speed = 7200 RPM P05 = 25 Max speed = 7200 * (1 ‐ 0.25) = 5400 RPM P06 Offset_EF_MIN 0 … 200 [ % ] To increase minimum speed venter motor (factory setting) Example: Min. speed = 1350 RPM P06 = 50 ... - Page 10 17040952—ENG ERROR CODES Description Solution 001 … 005 Internal fault Contact technical department 007 … 009 OpenTherm™ reset disabled If more than 5 reset attempts in 15 minutes occurs from OpenTherm ™ (GA11), device can only be unloc Lockout for no ignition After 5 ignition attemps lockout Lockout for safety limit thermostat intervention Lockout if LC3 is open (ts) Error fault PWM signla venter ‐ bad connection in cable between venter and board (J11 signal 2‐ Lockout for no air during prepurge (option Q10, for RPM absence) 3‐4‐5) ‐ broken board? Lockout for parasite flame (option K10) After 10s of sperious flame you get error 15 (lockout) Lockout (this value should occur after first power‐on) Lockout for wrong RPM signal after pre‐purge time If venter speed has not reached te preset speed or is to far out of bounds APS opened during operating Delta p (S3) is open ‐‐> main fan not running after ± 100s after heat cycle Venter is working even when it is in off state ‐ wiring problem (J11 signal 2‐3‐4‐5) Unexpected RPM signal on start‐up ‐ J11 signal 4 is broken ‐‐> bad print ‐can be bad venter motor (venter can also be in thermal lockout wait 1hour and try again) SR opened or not connected (forced purge) LC1 open or not connected Parasite flame (forced purge) Sperious flame at start‐up you don't get lockout only if this stays for 10s this will change to error 15 Internal communication fault Bad print should be returned to manufacturer LC1 short circuit led is orange (remove power supply, fix the lc1, supply power again) Switch‐Off Temperature Threshold exceeded LC1 has reached its setpoint, error is gone when temp is again under this value The resistor needs to be placed on the print at first power up Resistor for menu selection (J19) not connected/short circuited This is to choose the correct setup (led is orange)
- Page 11 17040952—ENG 5 different methods to control unit Option 1: standard Control via 0-10V signal (to be installed by customer) or through digital thermostat GA11 Option 2: On/off function (0 or 100%) (factory set) Individual on/off control OP 954 has to be clicked on the order form Option 3: (no additional setting required) 1 GA11 for 4 units (no extra sensors on units) Control through set point + room temperature by GA11...
- Page 12 SA unit 4 = 22°C diff = 2°C unit 1 is working at 100% unit 2 is working at 0% unit 3 is working at 75% Subject to modifications NORTEK GLOBAL HVAC Belgium J&M Sabbestraat 130/A000 B 8930 Menen Tel. +32(0)56 529 511 www.reznor.eu 12/12...
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