REGULA grandis 650 HK User manual

Heating circuit and solar controller
grandis 650 HK
Installation and operating instructions
English version of original German installation and operating instructions
Version: 1.1
September 201

Terminology
In order to facilitate the use of the assembly and operating instructions, the
following terminology will be used:
•These installation and operating instructions will hereinafter be designated as
"Instructions".
•The grandis 6 0 HK controller will hereinafter be designated as "Controller".
•The thermal solar power plant will hereinafter be designated as "Solar power
plant".
•Freely definable Prozeda function modules, complete with selectable inputs
and outputs, will hereinafter be designated as "Multi-function controllers"
(MFC).
•Prozeda GmbH will hereinafter be designated as the "Manufacturer".
Declaration of conformity
The product complies with the regulatory requirements and standards on CE
conformity and therefore carries the CE mark.

This manual is designed to help you use the controller properly, safely and economically.
This manual represents only a part of the installation and operating instructions.
Read the document Menus and controller functions before making any settings on
the controller.
Target group
This manual is addressed to all persons who carry out any of the following tasks:
•Installing the controller
•Connecting the controller
•Putting the controller into operation
•Setting the controller
•aintaining the heating system
•Eliminating faults on the controller and the heating system
•Disposing of the controller
These persons must have the following knowledge and skills:
•Knowledge about establishing electrical connections
•Knowledge about the hydraulic operation of heating systems
•Knowledge of the applicable regulations at the point of use and the ability to apply
them
These persons must have read and understood the contents of this manual.
Availability
This manual is part of the controller. Always keep it in an easily accessible location. Include
this manual with the controller should the controller change hands.
If this manual gets lost or becomes unusable, you can contact the manufacturer for a new
copy.

Style conventions used in the text
Specific style conventions are assigned to different elements in the manual. This makes it
easy to recognise the type of text concerned:
Standard text,
" enu", " enu item", "Button designations",
•lists and
actions.
Notes accompanied by this symbol contain information about how to operate the
controller economically.
Style conventions for hazard warnings
This manual makes reference to the following categories of hazard warnings:
DANGER
Information or instructions accompanied by the word DANGER provide a
warning about a hazardous situation that will lead to fatal or serious
injuries.
ARNING
Information or instructions accompanied by the word WARNING provide a
warning about a hazardous situation that may possibly lead to fatal or
serious injuries.
CAUTI
ON
Information or instructions accompanied by the word CAUTION provide a
warning about a situation that can lead to minor or moderate injuries.
Style conventions for warnings of damage to property or
the environment
ATTENTION
Information and instructions of this kind provide a warning about a
situation that can lead to damage to property or the environment.

Table of contents
1 Safety ........................................................................................................................ 6
1.1 Proper use .............................................................................................................................................. 6
1.2 Basic safety information .................................................................................................................... 6
2 Description of the controller ................................................................................... 8
2.1 Overview ................................................................................................................................................. 8
3 Installing the controller ........................................................................................... 9
3.1 Fastening the controller .................................................................................................................. 10
4 Connecting the controller ..................................................................................... 11
4.1 Connecting cables to the controller ............................................................................................ 11
4.2 Connecting the controller to the power supply....................................................................... 13
4.3 Connecting temperature sensors ................................................................................................. 13
4.4 Assignment of the terminals to the system components ..................................................... 14
5 Operating the controller........................................................................................ 15
5.1 Description of the display elements ............................................................................................ 15
5.2 Using the operating buttons .......................................................................................................... 17
6 Menus and controller functions ............................................................................ 18
7 Restore factory settings ......................................................................................... 19
8 Networking the controller with other devices ..................................................... 19
9 Faults ...................................................................................................................... 20
9.1 Faults with fault message ................................................................................................................ 20
9.2 Faults without fault message ......................................................................................................... 23
10 Technical data ........................................................................................................ 25
11 Accessories ............................................................................................................. 26
12 Disposing of the controller .................................................................................... 26

Safety
6
1Safety
This chapter contains information on:
•the proper use of the controller and
•the safe use of the controller.
Read this chapter through carefully before you install, connect or operate the controller.
1.1 Proper use
The controller is used for monitoring and controlling a heating system.
Appropriate use of the controller includes the following requirements:
•Use the controller exclusively in dry rooms in residential, commercial and/or industrial
environments.
•Use only sensor connection boxes supplied by the manufacturer.
•Use the RS485 interface (ProBusX) only for networking further devices from the
manufacturer Prozeda.
The definition of proper use also encompasses observing and complying with all of the
information contained in this manual - in particular compliance with all safety information
and instructions.
Any other use, or any use exceeding the specifications, will be deemed to be improper use
and may lead to personal injury or damage to property and shall render the warranty void.
Use of the controller in the following situations in particular is considered to be improper
use:
•If you modify the controller independently and without prior authorisation
•If you operate the controller in a humid or wet environment
The manufacturer shall not be liable for damages arising from inappropriate use.
1.2 Basic safety information
This section contains basic safety information relating to working with the controller. You
will find additional safety information relating to specific actions and workflows at the
beginning of the section concerned.
Preventing risks of explosion
•Never use the unit in areas where there is a risk of explosion.

Safety
7
Preventing risks of fatal injury from electric shocks
•ake sure that all regulations applicable at the point of use are complied with.
•Always make sure that the controller is disconnected from the power supply before
carrying out any work on it.
•ake sure that the connections of the protective extra-low voltage areas do not get
mixed up with the power supply connections.
•On completion of installation work, refit the terminal cover and tighten the locking
screw using a screwdriver.
•ake sure that the electrical connection of the controller can be disconnected from the
mains externally if required.
•ake sure that all cables are secured by strain relief devices.
•Use the device only if it is in a fault-free condition.
Preventing risks of fire
•Install the controller on a non-flammable subsurface.
Preventing risks of injury from burns
•Carry out installation work on the heating system only when it has cooled down.
•The process water can reach very high temperatures. Exercise particular care when
configuring settings on the controller.
•Take water samples after completion of the settings and check them using a suitable
thermometer.
Preventing damage to property
•A damaged controller may cause malfunctions in the system as well as damage to its
components. Use the controller only if it is in a fault-free condition.
•Install the controller with due observance of its protection class. Information about this
can be found in the chapter Technical Data from page 25 onwards.
•ake sure that no moisture gets into the controller.
•If any moisture gets into the controller, disconnect the controller from the power
supply.
•ake sure that the maximum permissible ambient temperature is not exceeded.
Information about this can be found in the chapter Technical Data from page 25
onwards.
•ake sure that all components to be connected to the switching outputs are suitable
for an operating voltage of 230 V/50 Hz.

Description of the controller
8
•When in "manual mode", the system must only ever be operated for a short time and
only for test purposes.
•Install sensor lines separately from 230 V lines.
•Use only sensor connection boxes supplied by the manufacturer.
2Description of the controller
The controller is used for monitoring and controlling a heating system. The controller
allows the system to be configured in accordance with the local situation at the place of
use and with the requirements of the user. In addition, the controller can be used to carry
out system protection functions.
2.1 Overview
 microSD card interface
 Display
 Operating buttons
 Terminal cover
 Locking screw
The display (2) shows the menus for monitoring and controlling the heating system. The
operating buttons (3) allow you to display and change the parameters.

Installing the controller
9
For data exchange purposes the controller is equipped with a microSD card interface (1).
3Installing the controller
DANGER
Risk of fatal injuries due to explosions or fire.
Never use the controller in areas where there is a risk of explosion.
Install the controller on a non-flammable subsurface.
DANGER
Risk of fatal electric shock when working on the opened controller.
ake sure that the controller is disconnected from the mains voltage
before removing the terminal cover.
ake sure that the power supply has been secured to prevent it from
being switched on again.
Check that the controller is free from voltage.
Screw the terminal cover securely back in place when work has been
completed.
ATTENTION
Risk of damage and malfunctions due to improper storage before
connection.
Store the controller at room temperature for at least four hours before
connecting it.
Select an installation location which meets the following requirements:
•The installation location must be at eye level.
•It must have access to the power supply.
•There must be sufficient space in front of the controller to allow it to be operated.
•If you wish to lead cables and lines through the back of the controller, there must be
sufficient space for the cable gland.

Installing the controller
10
3.1 Fastening the controller
If you wish to lead cables and lines through the back of the controller, you need
to
do this before you fasten it.
ATTENTION
Risk of damage to the controller housing due to screws tightened too
firmly.
Tighten the screws only as firmly as necessary.
Use only suitable screws and dowels for fastening the controller.
Hang the controller on the top screw by the keyhole (1).
Fasten the controller with the screws from the inside through the bottom screw holes
(2).

Connecting the controller
11
4Connecting the controller
DANGER
Risk of fatal electric shock when working on the opened controller.
ake sure that the controller is disconnected from the mains voltage
before removing the terminal cover.
ake sure that the power supply has been secured to prevent it from
being switched on again.
Check that the controller is free from voltage.
Screw the terminal cover securely back in place when work has been
completed.
DANGER
Risk of fatal electric shock due to ripped out cables.
ake sure that all cables are adequately secured in position by screw
clamps.
ake sure that there is no pull on the cables.
ATTENTION
Risk of damage to the controller and the heating system due to the
connection of unsuitable system components.
ake sure that the operating voltage of the system components
matches that of the controller. Information about this can be found in
the chapter Technical Data from page 25 onwards.
ATTENTION
Risk of damage and malfunctions due to improper storage before
connection.
Store the controller at room temperature for at least four hours before
connecting it.
4.1 Connecting cables to the controller
ake sure that the cables and the controller are disconnected from the voltage.
Remove the terminal cover.

Connecting the controller
12
The following illustration shows the elements of the controller that are important for
connection:
Pos.
Description
1
Terminals for extra
-
low voltag
e area
2
Fuse
3
Terminals for 230 V area
4
Terminals for protective conductor
5
Terminals for relay contact
6
Cut
-
out apertures for cable feedthrough at the back
7
Screw clamps for securing the cables
8
Cut
-
out apertures for cable feedthrough on th
e underside
Connect the cables to the corresponding terminals.
Information about connecting the system components to the corresponding terminals
can be found in the section Assignment of the terminals to the system components from
page 14 onwards.
Screw the terminal cover securely back in place.

Connecting the controller
13
4.2 Connecting the controller to the power supply
When making the mains connection, you must ensure that the mains supply can be
disconnected at any time. If you make a permanent mains connection, proceed as follows:
Install a switch on the supply lead of the controller.
If you make the mains connection complete with cable and earthing pin plug, proceed as
follows:
ake sure that the earthing pin plug is easily accessible.
Plug the earthing pin plug in the plug socket.
4.3 Connecting temperature sensors
ATTENTION
Risk of damage and malfunctions on the controller due to improper
connection of the temperature sensors.
Use only sensor connection boxes supplied by the manufacturer.
Use only shielded cables for line extensions.
Connect the shield of the extension cable to a PE terminal.
Install sensor lines separately from 230 V lines.
Use cables with the following cross-sections for line extensions:
•Up to 15 m: 2 × 0.5 mm
2
•15 to 50 m: 2 × 0.75 mm
2
When connecting the temperature sensors, you do not need to observe polarity
for the two wires.

Connecting the controller
14
4.4 Assignment of the terminals to the system
components
For orientation when assigning the terminals to the switching outputs, various different
system layouts are shown in the document Hydraulic layouts. These show simplified solar
circuits that you can use with the controller. The process water circuit is not shown here.
For the hydraulic layouts you can select "External heat exchanger" or "Three-way valve for
bypass function" as extensions.
You can set the hydraulic layout at:
•Basic settings/Solar circuit/Hydraulic layout
The connections in the following table are options that may be used in all hydraulic
layouts:
Terminal
Use
S1 to S10
Connections for PT1000 temperature sensor
S0 +
Radiation sensor input (white core of the radiation sensor at S0, red core at
)
S4 + S4
Temperature sensor of the collector return line for the "Energy yield
measurement" function
S13 + 5V
S15 + 5V
Flow sensor for the "Energy output measurement" function
S14 + S15
5V +
VFS (vortex flow sensor) for the "Flow monitoring" function
"Flow" on S14, "Temperature" on S15.
Further details can be found in the VFS manufacturer's documentation.
S12 + S13
5V +
VFS (vortex flow sensor) for the "Flow monitoring" function
"Flow" on S12, "Temperature" on S13.
Further details can be found in
the VFS manufacturer's documentation.
A + B
RS
-
485 interface (
ProBusX)
ake sure that the polarity of the bus connection is not mixed up (A-A, B-B).
Use paired twisted
-
conductor cables for connection.
HE 1 + 1
Power control for high
-
efficiency pump (H
E pump)
1
power supply for the pump via switching output
R1
or directly to 230V
HE 2 + 1
Power control for high
-
ef
ficiency pump (HE pump)
2
power supply for the pump via switching output
R2
or directly to 230V
HE 3 + 1
Power control for high
-
efficiency
pump (HE pump)
Information about the hydraulic layouts can be found in the document Hydraulic
layouts.

Operating the controller
15
5Operating the controller
This chapter provides you with an overview of the controller's display elements and
operating elements. This is followed by explanations of all the basic actions.
5.1 Description of the display elements
The following menu symbols are displayed in the top part of the display in the main
menu:
Main menu
Symbol
Description
"Info" menu
This is for displaying measurement and output values and status messages.
"Program" menu
This is for displaying and changing parameters.
"Manual mode" menu
This is for switching outputs on and off for test purposes.
Only specialist personnel are permitted to make changes to the values in this menu.
"Basic settings" menu
This is for displaying and changing basic settings.
Only specialist personnel are permitted to make changes to the values in this menu.
The menu symbol (1), menu level (2) and the name of the active menu level (3) are
displayed in the top part of the display. The middle part of the display shows menu items
in list form. The names of the menu items (7) are displayed on the left-hand side. On the
right-hand side you will see the current values or status messages (4) for each of the menu
items. The selected line will have a gray background. The bottom part of the display
shows basic system functions and messages from the controller. The following illustration
shows a display screen by way of illustration:

Operating the controller
16
Pos.
De
scription
1
Active menu (In this case: "Info" menu)
2
Display for the menu level (In this case: Level 1)
3
Name of the active menu level
4
Current value or status
5
Fault symbol:
This symbol is displayed flashing in the event of a fault.
6
Pump symbo
l and switching outputs:
The pump symbol rotates whenever the pump is switched on. There is a bar display
above each switching output showing the current control power
7
enu items

Operating the controller
17
5.2 Using the operating buttons
The operating buttons allow you to navigate in the menus and make changes to values.
The following table explains the functions of the operating buttons:
Operating
buttons
Function
ove up in the list.
Increase the displayed value.
ove down in the list.
Call up the selected menu.
Reduce the displayed value.
ove to the right in the main menu.
Select or activate a menu item.
Confirm a change to a value.
ove to the left in the main menu.
Cancel the activation of a menu item. Any value changes that have not been
confirmed will be discarded. The value that is currently set will be displayed.
Return to the main menu.
In the case of fault messages: Switch off the warning signal.
Navigating in the menus
To switch to the main menu, press as often as required until the main menu is
displayed.
Use or to select the required menu.
The selected menu symbol flashes.
To display the various different menu items, select or .
To display a menu item, select .
To exit a menu item, select .

enus and controller functions
18
Changing values
To activate a menu item, select .
The "Change value" display screen will be displayed. The value will be displayed as a figure
(1) and as a bar display (2). The bar display shows the setting range (In this case: 15–95 °C).
To increase the value, select .
To reduce the value, select .
To abort the change to a value, select .
To confirm the entry, select .
The value stops flashing. The OK symbol (3) will be displayed and will flash.
To cancel the entry, select .
To re-confirm the entry, select .
The value will be saved and the overview will be displayed.
If you press the or buttons once, the value will be increased or reduced in
steps. If you keep these buttons pressed, the value will be increased or reduced on
a continuous basis.
6Menus and controller functions
Information about the menus and the various controller functions can be found in the
document Menus and controller functions.

Restore factory settings
19
7Restore factory settings
ATTENTION
Risk of loss of current settings due to incorrect restoration of the factory
settings.
Before restoring the factory settings, make sure that you no longer
require the current settings.
If necessary, save the current settings to a microSD card before
restoring the factory settings.
The factory settings are the parameters that were preset ex works.
In order to restore the factory settings, select the value "Load" in the "Basic
settings/System/Factory settings" menu item.
The factory settings will be restored.
8Networking the controller with other
devices
The RS-485 interface allows you to connect the controller to other devices in a network.
Prozeda ProBusX for:
• Internet connection, remote visualization and remote maintenance (conexio 200 web
module)
•Remote control and room temperature sensor (navo 400)
•Extension to up to four mixed or unmixed heating circuits controlled by the outdoor
temperature via external flex modules.
odbus (optional) for connection to the building services control system.
The manufacturer can provide further details.

Faults
20
9Faults
ATTENTION
Risk of damage to the system if faults are remedied incorrectly.
ake sure that faults are only ever remedied by specialist personnel.
There are two categories of system faults:
•Faults that are detected by the controller and trigger a fault message
•Faults that are not detected by the controller and do not trigger a fault message
9.1 Faults with fault message
In the event of faults with fault messages, the fault symbol will start flashing in the bottom
part of the display. The backlighting will flash simultaneously. The acoustic warning signal
will be sounded as well if it is active.
To switch off the flashing of the backlighting and the acoustic warning signal, press the
operating button. .
The acoustic warning signal is activated and deactivated in the following menu item:
•Program/System/Warning signal
Displaying fault messages
To display the fault message, go to the "Info" - "Fault" menu.
All the faults which have occurred are displayed here. Clicking with the right-hand mouse
button allows you to display the time and date. When the fault is no longer present, "Fault
OK" will be displayed. You can delete the message with "Reset".