Regulus IR 14 CTC User manual

www.regulus.eu
IR 14 CTC
EN
Instruction Manual
IR 14 Heating Controller
V.: IR14 CTC
Valid for FW 1.0.5.0
IR 14 CTC

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TechnicalDescriptionofIR14HeatingController...........................................................................................3
1.HowtooperateIR14Controller...............................................................................................3
1.1.BasicUserMenu...............................................................................................................................4
2.UserMenu.............................................................................................................................11
2.1.HeatingZones.................................................................................................................................11
2.2.HVACunit........................................................................................................................................12
2.3.Timeprograms................................................................................................................................13
2.4.OTCcurves......................................................................................................................................13
2.5.Heatpumpcontrol..........................................................................................................................13
2.6.Heatpumperrors............................................................................................................................14
2.7.Othererrors....................................................................................................................................14
2.8.Settingsofhotwaterheatedbyheatpump(DHW).......................................................................14
2.9.Settingsofhotwaterheatedbyauxiliaryheatsource(DHW‐E)....................................................14
2.10.Settingtemperaturesforthermalstore..........................................................................................15
2.11.DHWrecirculationsettings.............................................................................................................15
2.12.Statistics..........................................................................................................................................15
2.13.Operatingdata...............................................................................................................................16
2.14.Other...............................................................................................................................................16
2.15.Timeanddatesetting.....................................................................................................................16
2.16.RegulusRoute‐parametersofconnectionwiththeservice...........................................................17
3.Additionalmodules................................................................................................................18
4.Webinterface........................................................................................................................19
4.1.Homescreen...................................................................................................................................20
4.2.DisplayoftheDiagram(DIAGRAM)................................................................................................23
4.3.Heatingzonemenu(HEATING).......................................................................................................24
4.4.ZONEDHW(Domestichotwater)...................................................................................................31
4.5.Sourcesmenu(SOURCES)...............................................................................................................32
4.6.Menuwithothersettings(OTHER).................................................................................................39
4.7.Menuwithaccesstomanuals(MANUALS).....................................................................................42

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Technical Description of IR 14 Heating Controller
Variant IR14 CTC
IR 14 Heating Controller (var. IR14 CTC) is a controller of heating systems with a CTC heat
pump and a solar thermal system. The controller can handle up to 6 heating zones with a
mixing valve, DHW heating by a heat pump, DHW heating by a switched heat source, it can
also control auxiliary heat sources (electric or gas-fired boilers) and a HRV unit.
IR 14 Heating Controller is controlled by seven keys. Information is shown on a 4-line display.
The Controller features 11 analogue inputs for temperature measurements (by Pt 1000
temperature sensors) one analogue input for a pressure transducer (4-20mA) and one input
for Ripple control signal. Each of the analogue inputs can be used a a binary input. Further it
features 11 relay outputs (250V 3A) and two PWM/0-10V outputs capable of continuous
control..
The Controller is fitted with an Ethernet interface f or a service intervention, firmware upgrades
and eventually elementary visualization of the concerned heating system. The Controller also
features an RS485 communication interface for connection of CTC heat pumps. As an option,
an extension module can be connected to the Controller, e.g. for communication with
OpenTherm boilers, to increase the number of heating zones, a module for control of HRV etc.
1. How to operate IR 14 Controller
The controller is operated using 6 keys , , , , ESC, ENTER on its front panel.
The DISP key switches between the control program menu and menu with information on the
controller. It is not necessary to use this key during operation.

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The keys , are used to browse in the menu. In order to edit a parameter, press ENTER
and a cursor appears on the parameter. The values of numeric parameters can be
increased/decreased by pressing / keys. Selection parameters (e.g. ON/OFF) are chosen
by pressing keys , . When finished, pressing ENTER will move the cursor to the next
parameter in the same display. Parameter editing can be also exited without saving by pressing
the key ESC.
1.1. Basic User Menu
Pressing ESC in the basic User menu will always bring back the first – basic display.
1 – outdoor temperature
2 – weekday and time
3 – temperature in zone (if room temp. sensor is used)
4 – heating water temperature (if no room temp. sensor is used)
5 – temperature in thermal store
6 – temperature in DHW storage tank
Heating zone display (zone 1, zone 2):
1 – zone state (information on the current heating zone state)
2 – current and desired room temperature (if no room sensor is used, the data is shown as 0.0)
3 – adjustment to the desired room temperature. When a room unit is used, “PJ“ appears and the
adjustment made by this unit is shown.

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4 – current and desired heating water temperature for the zone
Possible operating states indicated on the service display and their equivalent in the controller web
interface are shown below:
Displayed on the service display Displayed on the web interface
off by service DISABLED BY SERVICE
off by user DISABLED BY USER
low syst.press TOO LOW SYSTEM PRESSURE
extern. block BLOCKED EXTERNALLY
store low t-HP THERMAL STORE BELOW HP MIN. TEMP.
fast loading FAST BOILER/FIREPLACE LOADING
stor.low t-zon THERMAL STORE BELOW ZONE MIN.TEMP.
max.z.temp.exc MAX. ZONE TEMPERATURE EXCEEDED
block-cool.t. COOLING BELOW ZONE TEMPERATURE
cool.other z. COOLING IN ANOTHER ZONE
block-period HEATING BLOCKED IN SET PERIOD
block-outd.t. HEATING BLOCKED BY OUTDOOR TEMPER.
off-time prog. TIME PROGRAM – SETBACK, ZONE OFF
block-room t. ROOM TEMPERATURE REACHED
air cooling AIR COOLING
cool. active COOLING ACTIVE
floor drying FLOOR DRYING PROGRAM
comf-low out.t COMFORT - LOW OUTDOOR TEMPERATURE
time prog.comf TIME PROGRAM – COMFORT TEMPERATURE
time prog.setb TIME PROGRAM – SETBACK TEMPERATURE
th.st.overheat THERMAL STORE OVERHEATED
holidays HOLIDAYS
perm. comfort COMFORT TEMPERATURE CONTINUOUS
perm. setback SETBACK TEMPERATURE CONTINUOUS
DHW heating DHW BEING HEATED
heat.- holid. HOLIDAYS
cool. holid. HOLIDAYS
Solar thermal system display:
1 – solar collector temperature
2 – system ON

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3 – ON = solar pump running
4 – marking of the currently heated DHW storage tank
5 – DHW storage tank 1, current temp (desired in solar heating)
6 – DHW storage tank 2, current temp (desired in solar heating)
7– DHW storage tank 3, not used
Display of DHW zone heated by an auxiliary heat source (DHW-E):
1 – zone state (on / off / no)
2 – current temperature in DHW tank
3 – desired temperature in DHW tank
4 – heating by el. element (heat / no heat)
Display of DHW zone heated by a heat pump (DHW):
1 – zone state (on / off / no)
2 – current temperature in DHW tank
3 – desired temperature in DHW tank
4 – heating by heat pump (heat / no heat)

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Heat Pump, cascade display:
1 – state of heat pump No.1, No. 2, No. 3
In this section, heat pump states are shown that are enabled on the Service level. The states
can be following:
OFF - service : heat pump is turned off by a heating engineer
OFF - user : heat pump is turned off on the User level
fault : heat pump is in alarm mode, alarm details are shown on the User
level in HP Alarms menu
return - max.T : heat pump is blocked by max. possible return temperature
flow - max.T : heat pump is blocked by max. possible flow temperature
ambient – min.T : heat pump is blocked by min. possible outdoor temperature
ambient – max.T : heat pump is blocked by max. possible outdoor temperature
sup.refrig.vapor : heat pump is blocked by max. compressor temperature
high T earth circ. : heat pump is blocked by max. brine circuit temperature
vapor –low T : heat pump is blocked by low evaporation temperature
vapor – high T : heat pump is blocked by high evaporation temperature
cond. – high T : heat pump is blocked by high condensing temperature
EEV-low T intake : heat pump is blocked by expansion valve’s low suction gas temp.
EEV-low T vapor : heat pump is blocked by expansion valve’s low evaporation temper.
EEV-high T vapor : heat pump is blocked by expansion valve‘s high evaporation temper.
EEV-low superheat : heat pump is blocked by expansion valve’s low superheat temper.
EEV-high p cond. : heat pump is blocked by expansion valve’s high condensing temper.
high pressure : heat pump is blocked by high refrigerant pressure
defrosting : heat pump is defrosting (only for air/source heat pumps)
min.run time : HP min. running time is active. This activates always after start, DHW
heating or defrosting
DHW heating : heat pump is heating DHW

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rebooting : heat pump is blocked by min. time between 2 compressor stars
heating : heat pump is heating your home
RC blocking : heat pump is blocked by Ripple control
vol.flow control : heat pump’s circulation pump is running
ready : heat pump is ready to start heating as soon as there is call for heat
Display of auxiliary heat source and thermal store:
1 – state of auxiliary source: heat / no heat / none
2 – current thermal store temperature (desired)
3 – Ripple control signal: on / off
Display of auxiliary heat source connected via OpenTherm interface:
1 – state of OT source heat / no heat / none
2 – real flow temp. of OT source
3 – state of communication with OT source: OK / error
Display with firmware version and release date:

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Controller in factory setting:
If the display shows the text above with warning about the controller being reset to default
settings, it is necessary to contact a service provider who shall set the respective controller
parameters.

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Selection of the desired setting (menu):
While in MENU, use arrow keys , to select the desired setting:
Settings < for user > – user setting of zones, DHW heating and other parameters.
Settings < add.modules > - display of basic information on additional modules, if present.
Settings < service > – service setting of zones, DHW heating, heat sources and other
parameters.
Access to the Service Menu is password protected and parameter adjustments in the service
menu are not intended for laymen!
< circulation > - setting of immediate DHW recirculation (circulation period). After the set
recirculation time expires, the function will be turned off automatically.
< zones 3 to 6 > - basic setting of heating zones 3 to 6 (zones have to be connected to IR via
additional modules). The adjustment range is dedcribed in Chapter 2.1 (setting of heating
zones 1 and 2).

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2. User Menu
The keys , enable browsing in the User Menu, and the selected item can be entered by
pressing ENTER.
2.1. Heating Zones
Heating Zone basic settings
T comfort (°C) ............Setting comfort temperature in zone (desired room temperature).
T setback (°C) ............Setting setback temperature in zone (desired room temperature).
During a day, the controller switches the desired zone temperatures by the preset time
schedule (for zones 3 to 6 adjustable from the web interface only).
zone on.......................Switching on a heating zone on the User level. When a zone is
switched off on the User level, the circulation pump will be switched off
and the mixing valve will shift to closed position.
The pump and valve can be activated by frost protection (if on and active).
Summer/winter mode
state ............................Switching on/off the function for automatic transition between summer
and winter modes. Summer/Winter mode is intended to turn on zone
heating when the outdoor temperature stays below the preset
threshold temperature (winter temp) for a certain time (winter time),
and vice versa, to turn off zone heating when the outdoor temperature
exceeds the preset threshold temperature (summer temp) for a
certain time (summer time).
summer temp (°C) .....If the outdoor temperature keeps above this value for the time set in
parameter summer time, the Controller will switch to summer mode.
summer time (h) ........see summer temp.
winter temp (°C).........If the outdoor temperature keeps below this value for the time set in
parameter winter time, the Controller will switch to winter mode.
winter time (h)............see winter temp.

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2.2. HVAC unit
HVAC Zone basic settings
comfort (%) ................HRV unit power settings during a "comfort“ mode from 15 to 100%.
setback (%) ................HRV unit power settings during a "setback“ mode from 15 to 100%.
During a day, the controller switches the desired HVAC unit power by the preset time schedule
(adjustable from the web interface only).
zone on.......................Switching on Zone on the User level.
Boost function 1, 2, 3 settings
boost 1, 2, 3................Switching on the Boost function. HVAC unit power will be temporarily
raised to the set power level for a time span set by the period value.
After the Boost period expires, the HVAC unit will be switched back to
automatic mode. This function could be also switched on by a button
connected to one of the controller inputs (see the service level).
power (%) ...................see boost 1, 2, 3.
duration (hh:mm).......see boost 1, 2, 3.
Summer bypass settings
summer bypass .........Switching on the Summer bypass function. This function can be
assigned to a room sensor in one of heating zones (however onky
when a room sensor/unit is present in the respective zone). The sensor
used is defined by the parameter assign function to zone. This
function opens the bypass flap when the outside temperature is lower
than set room temperature (request t.) on the selected room sensor.
At the same time, the outdoor temperature shall be higher than the
minimum outdoor temperature value set on the service level. The
summer bypass function can only be switched on in the summer mode
of the selected zone (the parameter can be set on the service level).
assign function to zone (zone number 1 – 6)
....................................see summer bypass.
request t. (°C).............see summer bypass.

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2.3. Time programs
Time programs can be set either for separate days, or in blocks Mo-Fr and Sa-Su.
When the program is being set for separate days, there are 2 transitions from Comfort to
Setback and 2 from Setback to Comfort for each day.
When the program is being set in blocks, there are similarly 2 transitions for the blocks Mo-Fr
and Sa-Su. By selecting copy YES, the respective blocks of time program will be rewritten..
If program copying is not desired, keep the option copy NO and leave the menu by pressing
ESC.
Holiday mode – specific temperatures in zones can be set for the set holiday period which the
controller will maintain..
2.4. OTC curves
The weather-compensating heating curve is calculated from heating system parameters that
are entered on the Controller service level. On the User level, the basic curve can be shifted
in parallel or its inclination changed using two parameters.
OTC curve shift (°C)
....................................OTC curve shift for the set outdoor temperatures of -15 °C and +15 °C.
When the curve is shifted at one of the points, the other point always
remains unchanged (i.e. the curve rotates around it).
The next displays can show a modified OTC curve described by 4 points [E1, I1] to [E4, I4],
where E1, E2, E3 and E4 are set outdoor temperatures and I1, I2, I3 and I4 the respective
calculated desired weather-compensated heating water temperatures.
2.5. Heat pump control
HP1, HP2, HP3 ...........Switching on/off one of heat pumps in cascade on a User level.
A heat pump switched off on the User level still communicates with the Controller, however no
demands from heating/DHW are sent to it.

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2.6. Heat pump errors
In this menu all heat pump errors can be reset (by changing the option Reset all errors to Yes).
By pressing the down arrow, the HP error log can be browsed.
1 – error serial number (1 – 10)
2 – date & time of error occurrence
3 – information if the error is still active (A)
4 – number of HP with error (1 – 10)
5 – error text description
2.7. Other errors
List of recent controller faults other than heat pump errors. These errors include, for example,
errors of sensors, connected modules, errors of heat sources...
2.8. Settings of hot water heated by heat pump (DHW)
DHW on ......................Switching on DHW heating by heat pump on the User level.
T comfort (°C) ............Desired temperature in Comfort mode.
T setback (°C) ............Desired temperature in Setback mode.
During a day, the controller switches the desired DHW temperature from HP by the preset time
schedule.
2.9. Settings of hot water heated by auxiliary heat source (DHW-E)
Basic settings of DHW-E
DHW-E on...................Switching on DHW heating by auxiliary heat source on the User level.
T comfort (°C) ............Desired temperature in Comfort mode.
T setback (°C) ............Desired temperature in Setback mode.
During a day, the controller switches the desired DHW temperature from an auxiliary source
by the preset time schedule.

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Anti-Legionella function
Anti-Legionella function is designed for thermal “disinfection” of hot water storage tanks,
primarily against Legionella bacteria.
When this function is ON, the hot water storage tank heats up to at least 65°C once in a week,
at a preset time on a preset day. Heating is switched off either when this temperature is
reached, or after two hours from switching this function on, disregarded of the temperature.
on ................................Switching on Anti Legionella function on the User level.
Day on (Mo-Su) Weekday when the function is switched on.
Hour on (h) .................Hour when the function is switched on.
2.10. Setting temperatures for thermal store
ThSt on .......................Switching on thermal store heating on the User level.
T comfort (°C) ............Desired temperature in Comfort mode.
T setback (°C) ............Desired temperature in Setback mode.
During a day, the controller switches the desired thermal store temperature by the preset time
schedule.
The real desired thermal store temperature is the maximum of all demands from zones (heating
zones, thermal store zone, demands from universal functions...).
2.11. DHW recirculation settings
DHW recirculation and its time program settings on the User level. When recirculation is on, it
is performed following the time schedule set for each day. For this period, circulation time and
idle time of the circulation pump can be set if its continuous operation is not desired.
on ................................Recirculation switched on..
circ time (min)............Circulation pump running time setting (pump is running)
idle time (min) ............Circulation pump running time setting (pump is idle).
User can set up separate days when recirculation is on.
2.12. Statistics
HP statistics is displayed here (number of compressor starts and operating time) and statistics
of DHW and auxiliary source operating time.

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2.13. Operating data
All temperatures, pressure, most important heat pump temperatures and states and controller
output values are displayed here for the user.
An Eletter at the end of the temperature sensor line means that the given temperature sensor
is outside its permitted working range and it is necessary to check this sensor and its
connection and correct the fault.
2.14. Other
Website password reset
....................................Controller website username and password reset for User level (select
reset). By resetting the default values are set (username: user,
password: user).
Lang. of heat pump state and error email language
....................................Selection of the language in which the heat pump statuses, sensor
names, blocks and system faults will be displayed on the display and
on the web.
2.15. Time and date setting
Time and date shall be set to ensure proper operation of time programs (zones, recirculation,
DHW heating etc.). Clock is set in 24 hour format.
If the controller is connected to the Internet, the date and time are automatically updated every
hour using NTP time servers..
After time and day are set, pressing key will show the display:
When this display appears, the time and date will be stored in the controller memory.

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2.16. RegulusRoute - parameters of connection with the service
RegulusRoute service enables remote access to the Controller avoiding the need to use a
public IP address. If you wish to have this service configured, kindly contact Regulus.
RegulusRoute ............displays whether the service is on.
Service status ............displays the current service status and error information.
Then follows the information about IR driver, remote server of RegulusRoute service along
with a detailed description of the last fault of the service. This information can be useful when
solving connection errors with a service technician.
IR name ......................IR14 Controller login name to RegulusRoute service.

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3. Additional modules
In the basic menu, when add.modules are selected, user information on additional modules
(if present) can be viewed.
Fire Module
Temperature (°C) .......Fireplace flow temperature.
Damper (%) ................Display of how opened is the damper of the air supply to the fireplace.
DHW pump .................Display of the state of pump for DHW heating from Thermal Store
(on/off).
UNI module, UNI module 2
Output (on/off) .... - State of universal output of UNI module (1, 2) displayed.
T1 (°C) .... - Display of t1 temperature from UNI module (1, 2).
T2 (°C) .... - Display of t2 temperature from UNI module (1, 2).

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4. Web interface
The controller involves an integrated website showing a heating system overview and user
settings.
For its website access, the controller shall be connected to a LAN or directly to a PC using a
network cable. The parameters for the network connection (IP address, gateway address and
subnet mask) can be found in the controller information by pressing the DISP key. Pressing
DISP again will return the controller to user display.
After the controller is connected to a LAN, by entering its IP address into the browser address
bar the initial login form will be displayed:
Login name for user level is: user,
Password for user level is: user.
After login to the IR controller via the website interface through IR Client app or RegulusRoute
service the basic screen with tiles appears.
In the mobile version of the website, it is possible to expand the menu by clicking on the icon
in the upper left corner, while the logout button and the flag for changing the language version
is located in the upper right corner.
When editing values (numbers, texts), it is necessary to confirm each change by pressing the
SAVE CHANGES button.

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4.1. Home screen
The home screen contains basic information about the two heating zones, DHW heating,
recirculation and Heat Recovery Ventilation zone.
Service-enabled zones are highlighted in colour and can be controlled.
Service-deactivated zones are only shown and cannot be controlled.