The following abbreviations are used in this manual:
This manual contains instructions for setting and operating the MaR of MANDÍK air handling units of the M, P, S, and T series.
Before starting any work on the MaR, this manual must be studied and subsequently followed. Compliance with this manual is a condition for proper operation, function, and fulfillment of warranty conditions. The manufacturer is not responsible for any damage caused by improper use, and all risk is borne by the user.
This manual is intended for persons holding valid authorization for service activities on air handling and air conditioning units.
Any unauthorized changes in MaR cabinets that have not been approved in advance by MANDÍK, a.s. will result in the loss of all provided warranties and the loss of the guarantee of safe use and operation.
It is recommended to switch off the control cabinet with the controller only for a short time, because even when the air handling unit is switched off, the controller still performs certain control functions! In the event of a long-term shutdown (more than 3 days), the controller may lose time synchronization, which may subsequently disrupt the operation of the air handling unit according to the time schedule.
This description is valid for MaR with the Climan controller using software version 1.1AHU or higher! The software version can be found in the ApplicationInfo menu on the display home screen.
The following documents are supplied with each MaR delivered with the air handling unit and should be located near the air handling unit:
When using the MaR, the instructions of this regulation must be observed.
During installation, electrical wiring, commissioning, repairs, and maintenance of the units, applicable standards, safety regulations, and generally recognized technical rules must be observed.
Installation of the units, including connection of the electrical installation, commissioning, repairs, maintenance, and operation may only be carried out by a natural or legal person with valid authorization.
The brain of the control system is a programmable Linux gateway and programmable logic controller (PLC), equipped with two Ethernet and two RS485 ports. Thanks to software openness, it is a universal gateway in the field of industrial automation and MaR applications. In these applications, it acts as a control element and can also be used for data acquisition for a superior SCADA system (Supervisory Control And Data Acquisition). Thanks to remote programming technology Proxy, the controller can be remotely monitored and its software can also be modified.
| Power supply | 9-30V⎓ |
| Power consumption | Max. 12W |
| CPU | Quad-core ARM A53 (600 MHz) |
| RAM | 1 GB |
| Internal memory | 16 GB eMMC |
| Ethernet | 2× (1 Gbit + 100 Mbit) |
| RS485 | 2x, galvanically isolated |
| Operating conditions | 0°C...55°C, relative humidity 10%...95%, without aggressive substances, condensing vapors, and fog |
| Storage conditions | -25°C...70°C, relative humidity 10%...95%, without aggressive substances, condensing vapors, and fog |
| Protection rating | IP20 |
| Installation | On 35mm DIN rail |
| Connection | Max. 2.5mm2 for power supply, max. 1.5mm2 for RS485 |
| Dimensions | 35 x 94 x 70 mm |
| Weight | 140 g |
| EU Declaration of Conformity | CE marking |
The expansion module represents a simple and inexpensive way to process a set of analog and digital inputs and outputs. The expansion module is equipped with its own control microprocessor, which maintains the basic I/O functionality in operation. In the event of a loss of communication with the control unit, all output I/O are switched off for safety reasons thanks to the Watchdog function. It communicates with the main controller via the RS485 bus, and addressing of expansion modules is performed manually using the integrated DIP switch. Instructions for connecting and commissioning expansion modules can be found at this link.
| Power supply | 24V⎓ ±10% |
| Power consumption | Max. 20W |
| CPU | Dual-core ARM Cortex M0+ |
| RAM | 264 KB |
| RS485 | 1x |
| 8x Digital input | 8-28V⎓ |
| 8x Relay output | 6A / 250V~ or 6A / 24V⎓ |
| 12x Analog input | 0-10V⎓ / NTC10k |
| 10x Analog output | 0-10V |
| 2x PWM output | 5V⎓ / 50Hz |
| Operating conditions | 0°C...60°C, relative humidity 10%...95%, without aggressive substances, condensing vapors, and fog |
| Storage conditions | -25°C...70°C, relative humidity 10%...95%, without aggressive substances, condensing vapors, and fog |
| Protection rating | IP20 |
| Installation | On 35mm DIN rail |
| Connection | Max. 1.5mm2 |
| Dimensions | 90 x 213 x 55 mm |
| Weight | 400 g |
| EU Declaration of Conformity | CE marking |
| Switch | 120Ω termination resistor |
|---|---|
| 1 | ON |
| 1 | OFF |
| Switch 2 | Switch 3 | Baud rate |
|---|---|---|
| OFF | OFF | 4800 |
| ON | OFF | 9600 |
| OFF | ON | 19200 |
| ON | ON | 38400 |
| Switch | Binary value |
|---|---|
| 4 | 16 |
| 5 | 8 |
| 6 | 4 |
| 7 | 2 |
| 8 | 1 |
The device address is the sum of all binary values on switches 4-8
Example:
| Switch 1 | Parity |
|---|---|
| OFF | None |
| ON | Even |
The other switches are OFF by default.
With internet connectivity, the Climan controller can be connected to a superior SCADA system, which is most easily available as a cloud service at climan.online
For each connected air handling unit, building, or site, a data file is defined that determines the methods of communication with end devices and the methods of data display. The display has three basic modes:
All control parameters of the Mandík air handling unit can be set on the controller via the web interface or via an external touch display. Mandík room devices offered directly by the company can be used for remote control.
The "Mode selection" line is used to enter the requested type of operating mode for the unit. The current operating mode is displayed on the following line of the display. The user can choose from the following operating modes of the control system:
Setting the required fan values is done in the side menu under the ventilation manager, in the settings section. A detailed description of the temperature manager is provided in chapter 7.1.
Setting the required temperatures is done in the side menu under the temperature manager, in the settings section. A detailed description of the temperature manager is provided in chapter 7.1.
The main values for the user are the Setpoint value and the selection of the controlled temperature. If supply temperature is selected, the unit directly supplies air to the room at the chosen setpoint value. In the case of return air or room temperature control, the unit supplies air to the room within the minimum and maximum supply temperature range in order to optimally reach the selected setpoint. All these values can be set for 4 user modes.
For each device, it is possible to enable / disable its functions in the given mode. In this way, it is possible to define modes that allow control from the room device, or modes that completely or partially prohibit it.
The individual managers handle the requirements for air treatment. Each has the relevant sets of values that are user-configurable for individual modes. The outputs of the managers overlap so that all user requirements are met.
The user sets values for all 4 modes, for supply and extract fans. If the relevant sensors are available, they can choose the type of fan control.
In addition to the setpoint value, the user can also set the maximum allowed value. This is the maximum value to which the fan setpoint can be shifted if conditions for increasing the required airflow are met. Increased speed may be caused, for example, by CO2, temperature, or humidity managers, or directly by the user from the room device.
Each fan has minimum and maximum motor speeds on the module page, outside of which it will never go.
The mixing damper can be set for individual modes to fixed mixing, namely minimum / maximum / off. If the damper is controlled by PID, the mixing ratio is set by the temperature, CO2, or humidity managers, within the minimum and maximum configured values.
PID control is mainly used in units without heat recovery, where the damper can serve for temperature control by changing the mixing ratio.
It focuses on adjusting air quality to a user-defined setpoint. The control can be set to the required room or extract CO2 value. The manager can operate either with an active PID controller, when it continuously attempts to maintain the required CO2 setpoint, or it ventilates at the maximum permitted speed according to the configured hysteresis. The air quality manager can have several states:
It focuses on adjusting air temperature to a user-defined setpoint. The control can be set to the required supply, room, or extract temperature. Depending on the specific conditions, the temperature manager may have several states:
The air handling unit may contain modules capable of heating or cooling. A priority can be set for each one, according to which they are then activated step by step.
If a module contains multiple sections, the individual sections switch according to operating hours.
On the configuration page, it is possible to switch individual modules on / off, change their control types, add devices, etc. Changes can only be made under service login and when the unit is switched off.
Adding sensors is done on a separate "Analog inputs" page in the "Inputs / outputs" menu.
The CLIMAN controller extension has 12 analog inputs, which are used for measuring NTC10k temperature sensors or as 0-10V voltage inputs, for which the range must also be configured. Each input allows setting a correction value. Assignment of analog inputs is done on the "Analog inputs" page.
The input is activated by connecting 24V⎓, which must be at the same potential as the supply voltage of the extension. Each input allows changing the evaluation logic using the NO / NC switch (normally open / normally closed contact). Assignment of digital inputs is done on the "Digital inputs" page.
A specific variable is assigned to each analog output, according to which the output is set to 0-10V (100%=10V). Assignment of analog outputs is done on the "I/O overview" page, for the specific output. The same function can be assigned to multiple outputs at the same time.
A specific variable is assigned to each digital output, according to which the output switches on / off. Each output allows changing the evaluation logic using the NO / NC switch (normally open / normally closed contact). Assignment of digital outputs is done on the "I/O overview" page, for the specific output. The same function can be assigned to multiple outputs at the same time.