Klimor MCKT-HPX Operator's manual

DOCUMENTATION OF AUTOMATIC CONTROL
FOR COMPACT UNITS
DTR.MCKT-HPX.
AUT-009.5.0
PAGE
GDYNIA
MCKT
-
HPX
2016
1/35
KLIMOR Spółka z ograniczonąodpowiedzialnością, 81-035 Gdynia, ul. B. Krzywoustego 5
Fax: [phone]; Tel.: [phone]
Service – Fax: [phone]; Tel.: [phone] Mobile: [phone]
Information provided in this document is subject to change
email: [email protected] – Office
[email protected] – Service
DOCUMENTATION OF AUTOMATIC
CONTROL FOR COMPACT VENTILATION
UNIT MCKT-HPX
SERVICE
Tel.: [phone]
Fax: [phone]
Mobile: [phone]
Email: [email protected]
November 2016

DOCUMENTATION OF AUTOMATIC CONTROL
FOR COMPACT UNITS
DTR.MCKT-HPX.
AUT-009.5.0
PAGE
GDYNIA
MCKT
-
HPX
2016
2/35
KLIMOR Spółka z ograniczonąodpowiedzialnością, 81-035 Gdynia, ul. B. Krzywoustego 5
Fax: [phone]; Tel.: [phone]
Service – Fax: [phone]; Tel.: [phone] Mobile: [phone]
Information provided in this document is subject to change
email: [email protected] – Office
[email protected] – Service
CONTENTS: .............................................................................................................................................. PAGE
1. INTRODUCTION ................................................................................................................................................3
1.1 DESCRIPTION OF CONTROL SYSTEM ...........................................................................................................3
1.2 FUNCTIONS OF CONTROL SYSTEM...............................................................................................................3
1.3 ELECTRIC PROTECTION .................................................................................................................................3
1.4 COMMUNICATION.............................................................................................................................................3
2. SUPPORTED DEVICES.....................................................................................................................................3
2.1 FANS ..................................................................................................................................................................3
2.1.1 RPM ADJUSTMENT OF MCKT-HPX 1 AND MCKT-HPX 2 FAN MOTORS ......................................................3
2.1.2 RPM ADJUSTMENT OF MCKT-HPX 3 FAN MOTORS .....................................................................................3
2.2 HEAT EXCHANGER ..........................................................................................................................................5
2.3 HEAT PUMP.......................................................................................................................................................5
2.4 FILTERS.............................................................................................................................................................5
2.5 OPTIONAL DEVICES.........................................................................................................................................5
2.5.1 PRELIMINARY ELECTRIC HEATER .................................................................................................................5
2.5.2 INLET AND OUTLET AIR DAMPERS ................................................................................................................5
3. CONTROL PANEL .............................................................................................................................................6
3.1 ASSEMBLY AND CONNECTION OF CONTROL PANEL..................................................................................6
3.2 CONTROL PANEL USER GUIDE ......................................................................................................................7
4. PRELIMINARY HEATER....................................................................................................................................7
5. AIR DAMPERS: INLET AND OUTLET AIR DAMPERS......................................................................................7
6. OPERATION OF THE CONTROL PANEL .........................................................................................................8
6.1 DESCRIPTION OF THE SCREENS...................................................................................................................8
6.1.1 SIMPLIFIED MENU SCREENS..........................................................................................................................8
6.1.2 MAIN SCREEN...................................................................................................................................................9
6.1.3 MAIN MENU .....................................................................................................................................................10
7. WIRING DIAGRAMS ........................................................................................................................................19
8. DANFOSS FC 51 INVERTERS FOR MCKT-HPX 3 .........................................................................................27
9. BMS VARIABLE LIST – RTU MODBUS PROTOCOL......................................................................................28
10. CONTROL MODULES OF PRELIMINARY ELECTRIC HEATERS..................................................................33
10.1 FUNCTIONAL DESCRIPTION .........................................................................................................................33
10.2 COOPERATION OF THE PRELIMINARY HEATER CONTROL MODULE WITH THE MCKT-HPX CONTROL
SYSTEM ......................................................................................................................................................................33

DOCUMENTATION OF AUTOMATIC CONTROL
FOR COMPACT UNITS
DTR.MCKT-HPX.
AUT-009.5.0
PAGE
GDYNIA
MCKT
-
HPX
2016
3/35
KLIMOR Spółka z ograniczonąodpowiedzialnością, 81-035 Gdynia, ul. B. Krzywoustego 5
Fax: [phone]; Tel.: [phone]
Service – Fax: [phone]; Tel.: [phone] Mobile: [phone]
Information provided in this document is subject to change
email: [email protected] – Office
[email protected] – Service
1. INTRODUCTION
1.1 Description of Control System
The control system is specifically designed for MCKT-HPX AHUs. The control algorithm, making use of up to 5
temperature sensors in total, enables highly efficient heat recovery from the air extracted from rooms. Application of
EC motors in MCKT-HPX 1 and MCKT-HPX 2 as well as AC motors controlled with inverters in MCKT-HPX3 also
enables stepless adjustment of fan RPM in entire control range.
The control system supports the heat pump as well as option’s air dampers and preliminary electric heater.
The room panel equipped with 4-line display, enables communication between a user and the control system
installed in the MCKT-HPX. A panel equipped with temperature sensor can be located in any room, which facilitates
operation and improves the comfort of usage.
The application of the MODBUS RTU protocol enables connecting the controller to the facility’s BMS system and
remote control and adjustment of the AHU.
1.2 Functions of control system
The control system is in charge of the following functions:
• Power supply: 1×230VAC – MCKT-HPX 1 i 3×400V MCKT-HPX 2 i MCKT-HPX 3
• power supply, protection and independent control of fan motors, heat pump compressor
• 24VAC power supply of optional air damper actuators
• power supply of control panel
• 2× communication ports RS 485
• 3x analog outputs 0-10V
• 5x non-voltage relay digital outputs, switched
• 5x digital temperature sensor inputs
• 4x non-voltage digital inputs
• 2x analog inputs 0-10V
• 2x quick transistorized output (PWM)
• weekly calendar with possible 4 time zones for each day
1.3 Electric protection
The control system has to be energized in accordance with the wiring diagram and has to be protected with a circuit
breaker with an appropriate rating for the receivers used.
Protection of fans, heat pump compressor and compressor casing heater depend on their output and are provided on
appropriate wiring diagrams.
1.4 Communication
The automatic control system enables communication with the BMS system using the MODBUS RTU –RS485
protocol.
Summary of variables in point 9.
2. SUPPORTED DEVICES
2.1 Fans
The control system enables independent control using 0÷10V voltage signals of air supply and air exhaust fans
equipped with 1-phase EC motors for MCKT-HPX 1 i MCKT-HPX 2 and 3-phase (3x230V) AC with inverters for
MCKT-HPX 3 size. It also enables providing power supply and protecting each of them individually.
2.1.1 RPM adjustment of MCKT-HPX 1 and MCKT-HPX 2 fan motors
The controller provides a 0÷10V signal directly to the EC motor
2.1.2 RPM adjustment of MCKT-HPX 3 fan motors
The controller provides the 0÷10V signal to the inverter which in a proportional way changes frequency of the fan
motor current.
AHUs are equipped with inverters with 1×230V 50Hz power supply, which control fan motors powered with 3x230V
50Hz. Each inverter is equipped with control panel shown below.

DOCUMENTATION OF AUTOMATIC CONTROL
FOR COMPACT UNITS
DTR.MCKT-HPX.
AUT-009.5.0
PAGE
GDYNIA
MCKT
-
HPX
2016
4/35
KLIMOR Spółka z ograniczonąodpowiedzialnością, 81-035 Gdynia, ul. B. Krzywoustego 5
Fax: [phone]; Tel.: [phone]
Service – Fax: [phone]; Tel.: [phone] Mobile: [phone]
Information provided in this document is subject to change
email: [email protected] – Office
[email protected] – Service
Picture 1 Inverter control panel for the MCKT-HPX 3
Picture 2 Description of inverter control panel for the MCKT-HPX 3
Use the [Menu] key to select one of the following menus:
Status
For readouts only.
Quick Menu
For access to Quick Menus 1 and 2, respectively.
Main Menu
For access to all parameters.
Navigation Keys
[Back]: For moving to the previous step or layer in the
navigation structure.
[▲] [▼]: For manoeuvring between parameter groups,
parameters and within parameters.
[OK]: For selecting a parameter and for accepting changes
to parameter settings.
Pressing [OK] for more than 1 s enters 'Adjust' mode. In
'Adjust' mode, it is possible to make fast adjustment by
pressing [▲] [▼] combined with [OK].
Press [▲] [▼] to change value. Press [OK] to shift between
digits quickly.
To exit 'Adjust' mode, press [OK] more than 1 s again with
changes saving or press [Back] without changes saving.
Operation Keys
A yellow light above the operation keys indicates the
active key.
[Hand on]: Starts the motor and enables control of the
frequency converter via the LCP.
[Off/Reset]: The motor stops except in alarm mode. In that
case the motor will be reset.
[Auto on]: The frequency converter is controlled either via
control terminals or serial communication.
[Potentiometer] (LCP12): The potentiometer works in two
ways depending on the mode in which the frequency
converter is running.
In Auto Mode the potentiometer acts as an extra
programmable analog input.
In Hand on Mode the potentiometer controls local
reference.

DOCUMENTATION OF AUTOMATIC CONTROL
FOR COMPACT UNITS
DTR.MCKT-HPX.
AUT-009.5.0
PAGE
GDYNIA
MCKT
-
HPX
2016
5/35
KLIMOR Spółka z ograniczonąodpowiedzialnością, 81-035 Gdynia, ul. B. Krzywoustego 5
Fax: [phone]; Tel.: [phone]
Service – Fax: [phone]; Tel.: [phone] Mobile: [phone]
Information provided in this document is subject to change
email: [email protected] – Office
[email protected] – Service
2.2 Heat exchanger
The control system controls defrosting of the cross-flow heat exchanger. When the controller receives a signal from
the temperature sensor (Tr) installed at the exchanger's air exhaust outlet regarding a drop of this temperature below
the setting (factory default: 0°C), it initiates the defrosting mode. It consists in turning on the preliminary heater, heat
pump compressor and air supply fan. Once the situation is under control (temperature above the setting) and after
3minutes, the AHU switches back to the normal operation mode.
2.3 Heat pump
The control system contains a complete algorithm of heat pump control with reverse operation option.
It covers the following functions:
- Turning on/off the compressor
- Turning on/off the solenoid valve controlling the compressor
- Turning on/off the 4-way valve switching the system operation
- Read out of high pressure gauge alert
- Read out of low pressure gauge alert
- Controlling the compressor casing heater
The MCKT-HPX AHU can be equipped with the preliminary electric heater (optional), which heats up fresh air
and ensures correct operation of the heat pump at low external temperatures (below -5°C).
2.4 Filters
The pressure gauges installed at filters indicate filter contamination and the need to replace them. When excessive
pressure drop on any of the filters is detected an alarm signal is displayed.
It is necessary to plan filter exchange/cleaning. The system should not operate for a longer with contaminated filters
as it can cause damage of the heat pump and/or fans' motors.
2.5 Optional devices
The MCKT-HPX control systems enable control of other devices which are not provided as standard AHU equipment.
They contain:
2.5.1 Preliminary electric heater
Preliminary electric heater energized and controlled with a separate module.
Power supply for the heater MCKT-HPX 1 – 1×230V/50Hz, for MCKT-HPX 2,3 – 3×400V/50Hz.
Heaters electric data – see point 10.
It is recommended to use pressure gauge pf air supply fan connected to appropriate terminals of electric heater
module.
2.5.2 Inlet and outlet air dampers
Inlet and outlet air dampers with on/off-controlled actuators, with 24VAC power supply.

DOCUMENTATION OF AUTOMATIC CONTROL
FOR COMPACT UNITS
DTR.MCKT-HPX.
AUT-009.5.0
PAGE
GDYNIA
MCKT
-
HPX
2016
6/35
KLIMOR Spółka z ograniczonąodpowiedzialnością, 81-035 Gdynia, ul. B. Krzywoustego 5
Fax: [phone]; Tel.: [phone]
Service – Fax: [phone]; Tel.: [phone] Mobile: [phone]
Information provided in this document is subject to change
email: [email protected] – Office
[email protected] – Service
3. CONTROL PANEL
The main component designed for communication with the controller of the control system is the control panel (it is
also possible to control the equipment with the BMS in the MODBUS RTU protocol).
Picture 3 Control panel view
3.1 Assembly and connection of control panel
The DEN16-C panel is energized with 12VDC supply from the Unibox controller. The power supply and control is
carried out both using 4-strand communication cable. It can be terminated at each side with RJ11 connectors (4-pin,
size 6) or can be connected directly to COM1 clamp connection. The cable with RJ connectors should be interlaced
as shown:
Picture 4 RJ clamp terminal view
If cables longer than 5 meters are used, it is recommended to use twisted-pair cables, eg. UTP
(1st pair: +12V, G0; 2nd pair: A, B).
Picture 5 Panel diameters

DOCUMENTATION OF AUTOMATIC CONTROL
FOR COMPACT UNITS
DTR.MCKT-HPX.
AUT-009.5.0
PAGE
GDYNIA
MCKT
-
HPX
2016
7/35
KLIMOR Spółka z ograniczonąodpowiedzialnością, 81-035 Gdynia, ul. B. Krzywoustego 5
Fax: [phone]; Tel.: [phone]
Service – Fax: [phone]; Tel.: [phone] Mobile: [phone]
Information provided in this document is subject to change
email: [email protected] – Office
[email protected] – Service
3.2 Control panel user guide
SWITCHING SYSTEM ON – press the OK button and hold it for 2s
SWITCHING SYSTEM OFF – press the ESC button and hold it for 2s
Menu navigation:
Active menu row is indicated with symbols, depending on editing capabilities of related parameters.
The ●symbol indicates that a parameter can be modified in the active menu line.
The ○symbol indicates that a parameter cannot be modified (preview only)
The ►symbol indicates that there is an embedded menu in the active line.
The symbol indicates that there is a locked embedded menu or unavailable parameter in the active line.
UP – scrolling menu line up
DOWN – scrolling menu line down
RIGHT – lower menu level
LEFT – higher menu level
OK - entering parameter edit mode/leaving edit mode with confirming changes
ESC – back to STANDBY screen/leaving edit mode and withdrawing changes
Navigation in the simplified menu:
RIGHT/LEFT – scrolling menu right/left
Description of each controller screens – see point 6.
NOTE!
1. The MCKT-HPX AHU is supplied with factory settings of individual parameters provided to the controller.
2. The user has to configure the system according to conditions in a facility where the MCKT-HPX is installed.
3. Changing most of the parameters entered by an user requires the password.
4. PRELIMINARY HEATER
In order to ensure appropriate operation of heat pump at external air temperate <-5°C it is recommended to use
preliminary electric heater installed at fresh air input for MCKT-HPX.
Electric connection of the heater – based on data provided in point 10.
The preliminary heater is energized and controlled with a separate control module which is energized independently
from the MCKT-HPX control cabinet.
MCKT-HPX 1 – 1×230V 20A power supply.
MCKT- HPX 2 and 3 – 3×400V power supply, 22.5A and 33.9A respectively.
Setting up the controller – “Settings” screen > “Preliminary heater”.
5. AIR DAMPERS: INLET AND OUTLET AIR DAMPERS
It is recommended to install dampers with actuators cutting out airflow when the unit is not in operation.
Air damper actuators, on/off-controlled with 24VAC power supply.
Electric connection of actuators to the control system – according to diagrams provided in point 7.

DOCUMENTATION OF AUTOMATIC CONTROL
FOR COMPACT UNITS
DTR.MCKT-HPX.
AUT-009.5.0
PAGE
GDYNIA
MCKT
-
HPX
2016
8/35
KLIMOR Spółka z ograniczonąodpowiedzialnością, 81-035 Gdynia, ul. B. Krzywoustego 5
Fax: [phone]; Tel.: [phone]
Service – Fax: [phone]; Tel.: [phone] Mobile: [phone]
Information provided in this document is subject to change
email: [email protected] – Office
[email protected] – Service
6.
OPERATION OF THE CONTROL PANEL
6.1 Description of the screens
6.1.1 Simplified menu screens
First six screens scrolled with the LEFT/RIGHT buttons enables in easy way the preview and settings of the most
important parameters of AHU operation. Use the UP/DOWN buttons to change parameters.
Implemented changes do not require confirmation with the OK button.
Changing parameters at screens 4, 5, 6 is only possible in the MANUAL mode.
6.1.1.1 Simplified menu screen 1
[Tref] – current value of temperate readout from a reference sensor
[ON/OFF] – turning on/off the AHU using this screen requires pressing and holding down OK/ESC button for 2
seconds.
6.1.1.2 Simplified menu screen 2
[Tref] – current value of temperate readout from external sensor
6.1.1.3 Simplified menu screen 3
[Mode] – {MANUAL, MAX, 1d, 2d+5d, 7d} – currently selected operation mode
6.1.1.4 Simplified menu screen 4
[Tzad] – currently requested temperature – this parameter can be edited in manual mode only
System status ON/OFF
Currently displayed parameter
Navigation buttons left/right

DOCUMENTATION OF AUTOMATIC CONTROL
FOR COMPACT UNITS
DTR.MCKT-HPX.
AUT-009.5.0
PAGE
GDYNIA
MCKT
-
HPX
2016
9/35
KLIMOR Spółka z ograniczonąodpowiedzialnością, 81-035 Gdynia, ul. B. Krzywoustego 5
Fax: [phone]; Tel.: [phone]
Service – Fax: [phone]; Tel.: [phone] Mobile: [phone]
Information provided in this document is subject to change
email: [email protected] – Office
[email protected] – Service
6.1.1.5 Simplified menu screen 5
[N%] – current setting of air supply fan – the parameter is editable only in manual mode, changes at 10% intervals
between min and max values defined in the advanced settings.
6.1.1.6 Simplified menu screen 6
[W%] – current setting of air exhaust fan – the parameter is editable only in manual mode, changes at 10% intervals
between min and max values defined in the advanced settings.
6.1.2 MAIN SCREEN
[dd] – current day
[hh:mm] – current time
[X] – {X=1|2|3|4} – indication of operation in week mode timer and calendar zone, in which the controller currently
operates
[MODE] – {MANUAL, MAX, 1d, 2d+5d, 7d} – currently selected operation mode
[Tz] – current value of external temperature
[Tzad] – currently preset temperature
[Tref] – current value of temperate readout from a master (reference) sensor
[N=, W=] – current speed of air supply and exhaust fans
[STATUS] – system’s current operation mode:
{STOP} – system is not working
{INIT} – opening dampers
{WORK} – standard operation
{RPRT} – standard operation, activation of the exchanger anti-freeze protection
{WOUT} – fan coasting after finished operation
{AST} – indication of AUTO STOP function operation
[ALARM] – current status of system alarms – see ALARMS menu
[App__] – information on currently chosen application
[Rs] – info about the master (reference) sensor selected for control
dd hh:mm X
MAIN MENU
►
MODE =
MANUAL
Tz=±__._°C
Tzad=__°C
Tref=__°C
N=__% W=__%
STATUS=_____
ALA M=___
App__, s=__

DOCUMENTATION OF AUTOMATIC CONTROL
FOR COMPACT UNITS
DTR.MCKT-HPX.
AUT-009.5.0
PAGE
GDYNIA
MCKT
-
HPX
2016
10/35
KLIMOR Spółka z ograniczonąodpowiedzialnością, 81-035 Gdynia, ul. B. Krzywoustego 5
Fax: [phone]; Tel.: [phone]
Service – Fax: [phone]; Tel.: [phone] Mobile: [phone]
Information provided in this document is subject to change
email: [email protected] – Office
[email protected] – Service
6.1.3 MAIN MENU
6.1.3.1 OPERATION MODE
[TRYB] – this parameter enables choosing a required operation mode:
{MANUAL} – operation in manual mode, all operating parameters set by the operator
{MAX} – turning on operation for FW time, preset fan speed at MAX level, once preset time elapses, switching
back to operation in the previously selected mode
{1d} – operation in automatic mode – specific settings for each weekday
{2d+5d} – operation in automatic mode – separate settings for MO–FR and separate ones for SA–SU
{7d} – operation in automatic mode – common settings for MO–SU
Settings of MANUAL mode
This screen enables setting preset fans speed and temperature in the MANUAL mode:
[N] – setting the air supply fan control value
[W] – setting the air exhaust fan control value
[Tzad] – temperature requested in MANUAL mode
Settings of ZONE mode
These screens enable setting operating AHU parameters in the ZONE mode:
[DN] – selection of weekday, which zones will be programmed
{MO, TU, … , SU} – setting for selected weekday of the 1d schedule
{5d} – settings for MO–FR of the 2d+5d schedule
{2d} – settings for SA–SU of the 2d+5d schedule
{7d} – settings for MO–SU of the 7d schedule
///Ust.ST .1
DN=dd
T=__°C
N=__% W=__%
Kon.Str.=__
FS=____
//ZONE setting
Zone1 ►
Zone2 ►
Zone3 ►
Zone4 ►
\\MANUAL setting
N=__% W=__%
Tzad=__°C
/OPE ATION MODE
MODE=MANUAL
MANUAL setting ►
ZONE setting ►
MAX setting ►
MAIN MENU
Operation mode ►
Input ►
Outputs ►
Settings ►
Adv.Settings ►
Alarms ►
Passwords ►
Info ►
Time/Language ►
evert settings►