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KJM MANDÍK 

 Detailed operating instructions

 

        

M&C KJMPNO 07/2022 

MANDÍK, a.s., 

www.mandik.cz

    

 

23 

 

Humidity control 

6.3

Humidity control is based on the required and actual humidity in the room or the exhaust 

or supply air. Humidification is carried out using steam generators. Dehumidification can be done 

passively  or  actively.  Passive  dehumidification  of  a  ventilated  room  is  carried  out  by  ventilation 

under  the  condition  that  the  outdoor  absolute  humidity  is  less  than  the  required  absolute 

humidity.    In  passive  dehumidification,  the  amount  of  outdoor  air  supplied  can  be  increased  by 

increasing  the  output  of  the  fans,  opening  the  supply  air  damper  or  both  simultaneously.  Active 

dehumidification uses a cooling and heating component whereby the supply air is first cooled to 

remove  moisture  and  then  reheated  to  the  required  temperature.  In  the  case  of  the  required 

supply  humidity,  this  is  direct  control.  When  controlling  for  room  or  exhaust  humidity 

requirements, cascade control (

PID–

Supply

) is used, which calculates the required supply humidity 

based on the difference between the required and actual humidity, allowing better control of the 

required  humidity.  Relative  humidity  sensors  with  0-10  V  analog  output  are  mainly  used  for 

humidity measurement, but sensors with digital output can also be used.   

 

State

  (

Off

/

OK

/

Low

/

High

/

Outdoor

–  current  humidity  control  status  relative  to  the  required 

and actual measured value. 

 

State

 

Off

 

 humidity control is not active. 

 

State 

OK

 

  current  humidity  is  within  the  required  range 

(

Comfort

/

Economy

)

 

 

LowHysteresis

 

to

 (

Comfort

/

Economy

)

 

+

 

HighHysteresis

 

 

 

State

 

Low

 

 current humidity < required one (

Comfort

/

Economy

) – 

LowHysteresis

.

 

 

State

 

High

 

 current humidity < required one (

Comfort

/

Economy

) + 

HighHysteresis

.

 

 

State

 

Outdoor

 

 passive dehumidification with outdoor air is performed. 

 

Currently

 (%) 

– current temperature on the humidity sensor.  

 

DesiredSupply

 (%)

 – current required humidity of the supply air. 

 

Required

 (%)

 – required humidity for all regimes when the unit is controlled from a room unit 

and the humidity is measured by a sensor with analog output.  

 

Comfort

  (50%) 

–  required  humidity in  the 

Comfort 

regime  when  humidity  is  measured  by a 

sensor with analog output and the unit is not controlled from a room unit. 

 

Economy

 (50%) 

– required humidity in the 

Economy

 

regime if the humidity is measured by a 

sensor with analog output and the unit is not controlled from a room unit.  

Summary of Contents for Climatix

Page 1: ...KJM MAND K measurement and control system Climatix Detailed operating instructions 07 2022...

Page 2: ...omice Czech Republic Tel 420 311 706 706 Fax 420 311 584 810 E mail mandik mandik cz service department email service mandik cz This manual is an integral part of the technical conditions TPM 088 12 o...

Page 3: ...rt regime 11 5 2 6 Auxiliary regime 11 6 Equipment components 13 Temperatures 15 6 1 Temperature control 18 6 2 Humidity control 23 6 3 Fans 26 6 4 Fresh air 31 6 5 Recuperation 34 6 6 Water heating 3...

Page 4: ...og inputs 70 13 1 Assignment of digital inputs 73 13 2 Assignment of digital outputs 74 13 3 Analog output assignments 75 13 4 External switches 77 13 5 13 5 1 Configurable external switches 77 13 5 2...

Page 5: ...nd then followed before starting work on the M C Compliance with this manual is a condition for proper operation function and fulfilment of warranty conditions The manufacturer is not liable and the u...

Page 6: ...test per SN EN 61439 1 ED2 M C drawings 3 Safety When using the M C the instructions in this regulation must be observed The applicable standards safety regulations and generally accepted technical r...

Page 7: ...tem with the Climatix controller offers Excellent price performance ratio Simple installation Easy control in several variants Local and remote control Annual and weekly schedules Text display with cl...

Page 8: ...date time and temperature according to the configuration room supply or exhaust air The date and time can be changed by entering the service PIN 3 Line ModeSelection allows the user to enter the requi...

Page 9: ...rating regime is displayed on the next line of the display including the required temperature The user can select from the following operating regimes TimeSchedule Off Tempering Economy Comfort The Ec...

Page 10: ...the Freecooling sign and required temperature The fan speeds may correspond to the Comfort or Economy regime depending on the last operating regime The required temperature is set in the ComponentsMa...

Page 11: ...g dwelling or working hours The fan speeds are set in the ComponentsMachine Fans menu via the Comfort 100 variable for the supply and exhaust fans separately The required temperature is set in the Com...

Page 12: ...ntsMachine WaterHeating CompenssationSpeed Boiler the operation of the fans is blocked until there are no heating water requirements in the boiler room Start indicates the start up status of the compo...

Page 13: ...Power informs about the required output of the device OperatingHour may be used as information for service personnel due to wear and tear on the fan or other components NumberStarts indicates how the...

Page 14: ...der 1 and condensing unit to 2 The components may not have the same order in the same sequence Control 0 10V 2 10V 10 0V 10 2V this parameter determines the range of the output control signal for the...

Page 15: ...cts can be seen in Figure 2 Legend T1 Outdoor ODA T4 Preheat after 1st heating T7 Room T2 Inlet T5 Reheat before 2nd heating T8 Extract ETA T3 Supply Recuperation T6 Supply SUP T9 Extract Recuperation...

Page 16: ...laced in a sump welded above the flue way base The QAZ21 5120 sensor from Siemens with the NI1000 measuring element is supplied as standard Outdoor should also be configured for all the air conditioni...

Page 17: ...ment for the room temperature sensor as it senses the temperature of the exhaust air from the room without being affected by local room influences It is placed in the exhaust duct Exhaust used to meas...

Page 18: ...rature for the Comfort regime in the summer Economy 18 C required temperature for the Economy regime in the summer Winter required temperatures for every regime in the winter if the unit is not contro...

Page 19: ...imit is subject to Shift 0 C Shift 0 C non zero value defines the current maximum required supply air temperature limit HighLimitSupply as the sum of the required temperature by regime Comfort Economy...

Page 20: ...Room Supply Extract Preheat Exhaust Room1 Room2 Season Contact selects a temperature sensor or other condition for the controller to decide whether to heat or cool the unit When either temperature is...

Page 21: ...hanged although the exact required temperature is not reached At insensitivity values close to 0 C this function is almost inapplicable TemperatureSeason Summer Winter 18 C 60 min displays the conditi...

Page 22: ...operating output and the control of the components based on their PID control is also started up LTFilter 0 02 C sec filters the step changes in the required temperature and the calculated supply air...

Page 23: ...uired and actual humidity allowing better control of the required humidity Relative humidity sensors with 0 10 V analog output are mainly used for humidity measurement but sensors with digital output...

Page 24: ...l status If the actual humidity differs from the required humidity by this value then it will activate to humidify or dehumidify depending on the direction of the deviation High humidity status occurs...

Page 25: ...dehumidification will not be performed Fan power of the fans preset for passive dehumidification will be used for passive dehumidification ExhaustFan ExhaustFan MixDmp output of the fans preset for p...

Page 26: ...he frequency converters are set at the factory according to the technical specification of the specific air conditioning unit The speed of fans with frequency converters is controlled from the control...

Page 27: ...00 supply or exhaust fan speed in the Comfort regime in the summer Only if speed control from the room unit is selected configuration parameter TypeControl POLx Comfort is the maximum speed value that...

Page 28: ...ure sensor if the configuration parameter TypeControl Press RampStart 60 s time ramp up for the fan speed control signal to reach from 0 V 0 speed to 10 V 100 speed The ramp up value is determined by...

Page 29: ...on This function is particularly important in a recuperator configuration where the warm air supplied to the recuperator by the exhaust fan heats the recuperator before the supply fan starts Release...

Page 30: ...pacity cannot be increased any further Option compensation is enabled if the supply air temperature is low and at the same time any of the CoolError Defrost or HeatErr options is set to Compensation F...

Page 31: ...This function can be blocked by specifying an unreasonably large offset value up to max 100 C Delay 600 s delay of the AC unit shutdown due to extremely low or high supply air temperature Fresh air 6...

Page 32: ...ts from the controller Damper required damper position calculated by the controller The value is displayed separately for every damper enabled in the configuration This value should correspond to the...

Page 33: ...an be set separately for both states of Heat and Cool In the Ventilate state the mixing setting remains the same as in the previous regime Setpoint with this option the mixing damper acts as a heating...

Page 34: ...s used for heating NoCool recuperator cannot cool because the temperature of the exhaust air is higher than the outside air temperature NoHeat recuperator cannot heat because the temperature of the ex...

Page 35: ...e bypass damper of the plate recuperator opens or the rotary recuperator speed is reduced to the minimum value The mixing damper opens to 100 At the same time the fan speed can be adjusted according t...

Page 36: ...way valve opens The three way valve opens fully at 4 C Between 4 C and 10 C the valve position is linearly dependent on the temperature of the discharged water The frost protection stops if the temper...

Page 37: ...ture limit value used as operational protection of the water heating when the unit is switched on pump on If the heating water temperature is lower then the valve opens and fan speed compensation is a...

Page 38: ...to open OnLowTout pump turns on if the outside temperature is below 1 C regardless of the unit status Regime pump will turn on if TemperatureRegulation switches to the Heat state Always pump is perma...

Page 39: ...indicated as AuxilieryMode CompenssationSpeed on the controller display in the main menu State displays information about the electric heating operation Ready electric heating is not used Heat electri...

Page 40: ...ided by an emergency thermostat and temperature sensor in the flue gas The exhaust gases temperature sensor has the function of an operating thermostat set at 200 C When this exhaust gases temperature...

Page 41: ...wer 30 s control output is sent to the gas heater automation at intervals allowing rapid changes in power requirements to be filtered out PID Regulation the default factory set values are TI 60 s KP 5...

Page 42: ...the control cabinet or controller is switched off this protection will not work It is mainly used on external AC unit designs SetOn 4 C BurnOn Always BurnOff determines the conditions under which the...

Page 43: ...ing or condensing unit has its own control method This causes a great deal of fragmentation in the way refrigeration or condensing units are controlled and sometimes it is very difficult to reconcile...

Page 44: ...can be used for example for oversized power or for special condensing unit control modules Standby 1 5V intended for Mitsubishi units with PAC_IF control At this control voltage value the condensing...

Page 45: ...to the technical specification at which the ventilation regime of the condensing unit is switched on is entered FDP3 HeatOn 3 25 V is relevant for condensing units whose states are controlled by a co...

Page 46: ...ent heating or cooling capacity of the heat pump PowerOn 10 minimum power required to turn on a circuit or compressor MaxPower 100 here you can set the maximum power limit of both circuits of the heat...

Page 47: ...f On defines the behaviour of the recuperator during freezing Off recuperator will shut down when the heat pump freezes On recuperator stays on during freezing if it has not been turned off before Sta...

Page 48: ...rent humidity of the exhaust air PowerOn 10 minimum power required to turn on the humidifier DelayOff 10 s amount of time that the required humidifier output must be equal to 0 for the humidifier to t...

Page 49: ...irty Clogged this setting is only valid when monitoring filter clogging by a pressure sensor with an output contact called a manostat which indicates only two filter states Clean or Dirty Clogged It d...

Page 50: ...speed control based on air quality and fan speed when the air quality is poor The default fan speed values for the Comfort Economy regimes should be below these values ExhaustFan 100 selection to ena...

Page 51: ...ctions the final value is calculated as a mathematical average maximum or minimum Fire Smoke 6 16 The Fire Smoke function allows you to shut down the AC unit in the event of a fire alarm from the fire...

Page 52: ...e position of the fire damper Undefined damper is currently moving between the extreme open and closed positions Close damper is in the closed position Open damper is in the open position Err damper i...

Page 53: ...ecooling is active Required 18 C required room temperature If the room temperature is higher then freecooling is enabled Shift 5 C the outside temperature must be at least this much lower than the roo...

Page 54: ...rs can be added to the software based on the requirements when installing the AC unit State Off On current state of the boiler room switch on request The following parameters are only accessible after...

Page 55: ...temperature exceeds 50 C Always activates the boiler room request when the difference between the outdoor temperature and required temperature exceeds 50 C CondensaingUnit 70 No Winter Always is relev...

Page 56: ...n defines the type of external regime switch connected Contact controller accepts a permanently closed contact to enable the required regime and a permanently open contact to disable the regime Button...

Page 57: ...nd will not differentiate between a detected fault and a new fault Flash digital fault A output will be switched on with a period of 1s in the event of a fault signal and will not discriminate between...

Page 58: ...abilise especially at very low or high outdoor air temperatures The time program item displays the days of the week with six time points for every day Actual Day for every day it shows whether that da...

Page 59: ...onfiguration can only be accessed after a service login The No option determines that the item is not included in the unit or that its function is not to be monitored The Yes option specifies that the...

Page 60: ...ions TemperatureRoom No 1 2 2 room temperature sensors can be used to measure room temperature TemperatureSupply No Supply Preheat Reheat Sup Preh Sup Reh Preh Reh All temperature sensor can be select...

Page 61: ...temperature of the water at the drain line so called return line Supply sensor is designed to measure the temperature of the water on the supply pipe TemperatureExhaust No Extract Exhaust Both tempera...

Page 62: ...sensor for humidity control Extract exhaust air humidity sensor for humidity control AirQuality No DI Const Regul one sensor with digital contact output DI or two sensors with 0 10V analog output Cons...

Page 63: ...of every filter set in ComponentsMachine Filters AI pressure sensor with an analog output called a manometer is used to monitor the condition of one filter with the signalled clogging levels set in Co...

Page 64: ...is activated when the supply fan fails Extract the exhaust fan fails the backup exhaust fan is turned on Recuperation No Plate Rotary Glycol RotaryFbk specifies the type of recuperator used and its ch...

Page 65: ...e cooling regime 2WithHeat AC unit has a common water heat exchanger for cooling and heating By default cooling is enabled by an open external contact AssignmentInputs Outputs ExternalSwitches Cool He...

Page 66: ...oltages 1 8V to 10V the power of the unit is controlled in 7 steps The switching of the Cooling Heating modes is done by voltage free contacts HeatPump No 1 2 1 MB 2 MB specifies the type of heat pump...

Page 67: ...Switch are displayed to switch the unit from two different locations to the Economy regime When both contacts are closed the unit is in the regime of Comfort 3Switch is designed for potential external...

Page 68: ...two POL945 modules with 8 Inputs Outputs POL955 No 1 2 allows to expand the number of controller inputs by one or two POL955 modules with 14 Inputs Outputs POL985 No 1 2 allows the number of controlle...

Page 69: ...values are displayed Every line contains the input type with a serial number that corresponds to the physical description of the connectors on the controller This is followed by the value status infor...

Page 70: ...d can only be changed by a knowledgeable person as incorrect settings may damage the equipment or cause injury to the operator Assignment of analog inputs 13 1 The assignment of the digital and analog...

Page 71: ...ess than 100 C then the supply cable has probably shorted or the measuring cell itself has shorted If the temperature is higher than 250 C then the supply cable or the measuring cell itself has probab...

Page 72: ...midity sensor in the AssignmentInputs Outputs Humidity menu there for the selected humidity select one of the inputs marked according to the syntax described in the previous chapter Inputs and Outputs...

Page 73: ...can be used by the user to change the value given by the sensor and make an adjustment of the air quality deviation according to local conditions Value ppm indicates the current air quality from the...

Page 74: ...abbreviations in the table are also given for the previous SW version 28 01 Device component name Abbreviation v28 01 Abbreviation v29 01 Supply fan switch on FanS FS Exhaust fan switch on FanE FE Mix...

Page 75: ...Cnd4C Cd4C Condensing unit 4 heat Cnd4H Cd4H Unit operation On On Fan operation FnO FO Fan failure FnE FA Heating Cooling status H C H C Condensing unit 4 switch on Cnd4O Cd4O Condensing unit 5 switch...

Page 76: ...c heating 1 output ElH EH Electric heating 2 output ElH2 EH2 Supply air damper position DmpS DS Exhaust air damper position DmpE DE Gas heating output GasH G Gas heating bypass damper position DmpG DG...

Page 77: ...f the AC unit externally and the specific function of each is determined by the option in Configuration ModeSwitches Their function is enabled in ComponentsMachine Others 1Switch is used depending on...

Page 78: ...l environment Cool Heat this digital input can decide whether the unit should cool or heat subject to other settings An open contact is the default request for cooling and an open contact is the defau...

Page 79: ...e is used to record the date of the next service If the service function is not used then other information can be entered Versions this displays information about hardware firmware and software versi...

Page 80: ...the types of communications used with addresses of variable values that can be read from or written to the controller These tables are in separate annexes and are not part of this documentation A qui...

Page 81: ...is enabled on the RS485 port and the physical serial communication connection using RS485 is made with a twisted pair cable such as Belden 3105A plugged into the T9 controller terminals labelled RS485...

Page 82: ...is pressed again the unit returns to its previous operating regime RestartRequired address change is saved by selecting Execute in this item The S Mode variant with the maximum of 100 values is used...

Page 83: ...el number 3 appears in the top left corner of the display or a single key in the top right corner of the HMI TM or HMI DM controls PIN Service 2222 top left corner of the display will show access leve...

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