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Zehnder EASY 5.0

Description

Class

Time

limit

Action

Value/thres-

hold

Details/explanations

Possible causes

Return air fan

(VAR) fault

120s Normal

stop*

See Id=1

supply air

fan (VAS)

fault

See Id=1 supply air fan

(VAS) fault

See Id=1 supply air fan (VAS) fault

Rotary heat

exchanger

alarm

600s

The operational feedback

from the control-command

box of the rotary heat

exchanger was not

received within the time

limit.

The machine continues to

operate without energy

recovery.

The wheel is blocked or has a

mechanical rotational defect.

The belt is broken or slipping.

The drive motor has a malfunction.

The run command (K2-wheel relay)

or the power supply to the control-

command box has a fault /

malfunction.

The control-command box of the

rotary heat exchanger is defective.

Supply and

return filter

alarm

600s

The pressure drop of the

supply and/or return filters

has exceeded the set value

(300Pa for M5 + F7 filters,

200Pa for F7 filter, 150Pa

for M5 filter) of the

corresponding filter

pressure switch.

Clogged filter.

Unsuitable filter (third-party supply

does not meet manufacturer's

requirements).

Unsuitable filtration class.

An external element obstructs the

air flow in the machine.

54 Return filter

alarm

600s

See Id=53 Supply and

return filter alarm

See Id=53 Supply and return filter

alarm

Frost

protection

alarm (THA)

120s Rapid

stop**

The frost protection

thermostat (THA) has

detected a hot water coil

temperature below its set

value (5°C factory setting).

When the alarm is active,

the unit stops immediately

without a post-ventilation

sequence and the hot

water coil output is forced

to 100% (10V); see

details/explanations in the

rest of the document

(XXI.2 Frost protection

thermostat (THA))

The hot water coil supply pump does

not work (no air volume).

The 3-way temperature control

valve remains closed.

The hot water generator is not

working or supplies water that is too

cold.

The thermostat setting has been

changed.

The thermostat is faulty.

The wiring/cable between the

thermostat and the controller is

faulty.

58 Fire alarm

The behaviour of the

machine depends on how

the anti-fire function is

configured by the user.

When leaving the factory,

the anti-fire function is not

activated, so it is not

functional. Depending on

the settings made during

commissioning, the

activation of the anti-fire

function can affect the

operation of the unit, the

fans, the isolation dampers

and the bypass (if plate

heat exchanger).

The DI input is active (dry contact

closed).

Z-MASTER-V1122-CSY-INM-Zehnder Easy5.0

Содержание CALADAIR EASY 5.0

Страница 1: ...always the best climate Decorative radiators Comfortable indoor ventilation Heating and cooling ceilings Clean air solutions Installation Service and User Manual Zehnder EASY 5 0...

Страница 2: ...iagnosis_________________________________________________________________________ 23 14 1 General_______________________________________________________________________________________________ 23 14 2...

Страница 3: ...ction _______________________________________________________________________________________ 62 23 3 Thermal output ___________________________________________________________________________________...

Страница 4: ...type of appliance and work Use the necessary Personal Protective Equipment to avoid injury related to electrical mechanical injuries from contact with metal sheets sharp edges etc and acoustic hazards...

Страница 5: ...creen is powered by a 230V AC 24V DC transformer and communicates with the CLD 283 controller in Modbus RTU RS485 via the Ext DISP port The screen is the master and the controller is the slave Communi...

Страница 6: ...ere is no active communication P2 RxTx Status LED for port 2 reserved for communication with another expansion controller TCP IP Status LED for TCP IP port P B Status LED of the board Printed Board Th...

Страница 7: ...s UI AGND Common UI1 UI4 Inputs can be configured as analogue input AI or digital input DI depending on the machine version see electrical diagram for machine 1 TCP IP port Port reserved for communica...

Страница 8: ...ISPLAY To extend the supplied electrical harness use a 2x0 75mm cable or equivalent for the 24V DC power supply A Belden 3106A cable or equivalent for communication It is not possible to operate the o...

Страница 9: ...ter the heat recovery When it is not operating there is no heat recovery and this is also the case when running in free cooling or free heating mode In the case of a plate heat exchanger the recovery...

Страница 10: ...point supply air temperature supply air temperature control mode The measured return air temperature is higher than the setpoint return air temperature return air temperature control mode 5 4 Demand a...

Страница 11: ...e function configured to start the unit is active or there is a request for operation from the BMS The start up sequence takes a total of 120 seconds During this time the alarms are disabled except fo...

Страница 12: ...he supply air fan is switched off after 180 seconds The return air fan is switched off 30 seconds later The fresh air and return air registers are closed 5 seconds after the return air fan has stopped...

Страница 13: ...nit is switched off All of the following conditions must be met to activate the function The user has authorised the cooling operation accessible parameter Fewer than 4 days have passed since the unit...

Страница 14: ...ivation conditions are met again the fan offset will only be active after a time limit of 60 minutes from the time the cooling function was exited When cooling is active The DO output cooling NO is cl...

Страница 15: ...he fresh air bypass anti icing function must be reset This does not always happen instantly depending on the PID settings The factory setting of the outdoor activation temperature threshold is 100 C w...

Страница 16: ...should be done independently if necessary When the anti fire function is activated the bypass control output of the plate heat exchanger is deactivated and the fresh air is diverted from the plate he...

Страница 17: ...onding reduced speed pressure volume Normal operation The fan rotates at the corresponding normal speed pressure volume 2 Return air fan setpoint Auto The fan runs at the speed pressure volume request...

Страница 18: ...Navigation and menu access 3 Time change setting summer winter automatic XXXV 6 Navigation and menu access 4 Time period settings XXXV 6 Navigation and menu access 5 Fan setpoint configuration XXXV 6...

Страница 19: ...end time Principle of timetable setting 00 00 00 00 means that the period is not active 00 00 24 00 means that the period is permanently active 07 00 19 00 means that the period is active from 07 00...

Страница 20: ...n is activated the ventilation unit will operate in normal operation Is off no active time schedule and the forced running in reduced or normal operation is activated the unit will operate in reduced...

Страница 21: ...ion and the operating costs of the ventilation unit Access path to the function Access level Service Step 1 Step 2 Step 3 Step 4 From screen Area to click Holiday calendar Time settings Holiday calend...

Страница 22: ...schedule 00 00 07 00 to avoid disrupting the operation of the night cooling function Below is an example of time schedule left and ventilation right settings for the optimal operation of a LOBBY cont...

Страница 23: ...ort and air quality The rest of the time the ventilation unit runs in reduced operation to limit energy consumption If the conditions for activating the night cooling function are met it will operate...

Страница 24: ...s P1RxTx and TCP IP on the controller faceplate indicate that there is communication between the controller and an external device BMS CTM Communication takes precedence over external setpoints DI whi...

Страница 25: ...ry this will most likely lead to a malfunction or undesired behaviour of the machine Wiring Reverse wiring can lead to incorrect operation For example if a dry contact for external control to force th...

Страница 26: ...at is carried out on the machine during operation Unfortunately in some cases it is possible that the fault will not allow some outputs to be checked because the machine is stopped broken down as in t...

Страница 27: ...se it allows the operation of certain actuators to be stabilised at specific points thus making it possible to take readings or measurements absorbed current pressure temperature etc or to check the o...

Страница 28: ...on unit permission to restart Class A and B are identical It is useful to be able to distinguish between actions for the same type of resetting B C The alarm is automatically acknowledged when the cau...

Страница 29: ...cause depends on an analogue value for example temperature too high pressure or volume too low etc 15 6 Alarm state or status When there is an alarm it can take on several states depending on the sta...

Страница 30: ...sed for more than just the filters One month corresponds to 30 days and the countdown starts as soon as the unit is switched on When the power is off and the controller is not operating the countdown...

Страница 31: ...it 30s The minimum threshold depends on each machine model see table below Faulty fan Faulty fan power supply Speed control signal problem HS controller output faulty wiring connection between fan and...

Страница 32: ...structs the air flow in the machine 54 Return filter alarm C 600s See Id 53 Supply and return filter alarm See Id 53 Supply and return filter alarm 56 Frost protection alarm THA C 120s Rapid stop The...

Страница 33: ...atic relay can become conductive resulting in a permanent power supply to the electric coil 78 Internal battery error C 120s Normal stop The charge level of the internal battery has reached the minimu...

Страница 34: ...l The unit stops when the alarm is triggered To restart the temperature must fall below 55 C and the alarm must be manually acknowledged Supply air fan VAS defective The unit s isolation damper and th...

Страница 35: ...ort circuit 166 Return pressure transducer fault A 5s Normal stop Only for LOBBY Faulty missing transducer and or faulty wiring open or short circuit 167 Supply air volume transducer fault A 5s Normal...

Страница 36: ...m3 h 1800 m3 h 350 m3 h 540 m3 h CARMA 9035 SILVERTOP 35 1700 m3 h 3000 m3 h 610 m3 h 900 m3 h CARMA 9048 2000 m3 h 3500 m3 h 770 m3 h 1050 m3 h SILVERTOP 52 2750 m3 h 3900 m3 h 740 m3 h 1170 m3 h CA...

Страница 37: ...ing sequence 16 BMS communication 16 1 General The controller has the following 2 external communication ports Port P1 Modbus RTU RS485 slave or Bacnet MS TP TCP IP port Modbus TCP or Bacnet IP or web...

Страница 38: ...the same communication line the master controller requires a minimum silent interval of 14 characters 16ms at 9600 baud between the last controller response and the first question from the next contro...

Страница 39: ...evel Expert Step 1 Step 2 Step 3 Step 4 From screen Area to click Parameter Possible value range Baud rate 9600 14400 19200 28800 38400 57600 76800 115200 Address slave 1 247 Number of data bits 8 Par...

Страница 40: ...e not accessible The functions supported by the controller are as follows XXX address of the variable in Modbus protocol Supported functions Type Read and write binary value BV 10XXX Read binary value...

Страница 41: ...456789 BBMD X X A Bacnet Broadcast Management Device is used to detect controllers that are attached to different Bacnet IP subnets and separated by an IP router Neither viewable nor configurable from...

Страница 42: ...n the tables use the generic Modbus standard There is no address offset to be expected the 1st existing variable is addressed to the value 0 not 1 Scaling factor 10 means that the value read must be d...

Страница 43: ...gister 466 short AV 40376 Only for ECO and DIVA versions Supply air fan pressure Pa X 10 Input Register 311 short AV 40311 Only for LOBBY versions Return air fan pressure Pa X 10 Input Register 312 sh...

Страница 44: ...supply or return by air law Outdoor temperature 4 air law C X X 10 150 Holding Register 820 short AV 30820 Used only if temperature control supply or return by air law Outdoor temperature 5 air law C...

Страница 45: ...Holding Register 847 short AV 30847 Only for ECO and DIVA versions Return air fan normal speed setpoint X X 10 70 Holding Register 851 short AV 30851 Only for ECO and DIVA versions Return air fan red...

Страница 46: ...QUATTRO versions factory setting depends on machine model Fan balancing 3 CO2 m3 h X X 0 1 See details Holding Register 1041 short AV 31041 Only for QUATTRO versions factory setting depends on machine...

Страница 47: ...nsor fault X Input Status 191 bool BV 20191 0 no alarm 1 alarm present Only for machine equipped with plate heat exchanger Supply pressure transducer fault X Input Status 175 bool BV 20175 0 no alarm...

Страница 48: ...retrieved directly from the PG 5 0 touchscreen from the communication menu see XVI 5 IP configuration DHCP 18 Temperature control modes Access path to the function Access level Expert Step 1 Step 2 S...

Страница 49: ...ther so that the main cooling system is not overloaded and runs unnecessarily causing needless energy consumption Uses a maximum of free energy free cooling or free heating from the outside air in the...

Страница 50: ...24V AC to be relayed used according to the configuration Authorisation to run the heating generator Authorisation to run the circulator or heating pump no degumming cycle On Off output for cooling nee...

Страница 51: ...ed for each outdoor temperature point The setpoints are adjusted at the factory for a supply air law To avoid excessive energy consumption while maintaining acceptable comfort it may be possible to ra...

Страница 52: ...emperature setpoint variables whether it is using supply air law or return air law Switching from supply air to return air or vice versa therefore requires the setpoint to be adjusted for each outdoor...

Страница 53: ...UATTRO versions variable threshold set in the CLD 283 controller in accordance with the AHU model see XV 11 Fan feedback and difference thresholds 19 2 ECO controller The ECO controller is an open loo...

Страница 54: ...pm the fan offset is kept constant at 30 which gives a resulting speed of 70 of the maximum speed 40 30 70 An intermediary point set at 900ppm and 15 offset makes it possible to make the behaviour of...

Страница 55: ...sted individually and continuously by means of a PID algorithm in order to obtain a measured actual pressure equivalent to the setpoint pressure adjusted in the controller regardless of the variable n...

Страница 56: ...operation pressure setpoint in order to potentially manage 2 different pressure levels or to further increase the resulting air volume when night cooling is activated In the latter case it must be en...

Страница 57: ...greater precision because the air volume is known and therefore better controlled It does not depend on the state of clogging of the filters and the minimum volume of the unit can be managed more prec...

Страница 58: ...r to the battery heating elements The PWM signal period is 60 secs not adjustable The PWM value is directly proportional to the calculated heating requirement The PWM is translated directly to the DO...

Страница 59: ...water heating coil The electric heating coil is equipped with an overheating safety thermostat set at 100 C which protects the machine from accidental overheating e g static relay failure The overheat...

Страница 60: ...ol signal is zero 0V The hot water feed rate to the hot water heating coil is zero When the hot requirement is at its maximum the control signal is at its maximum 10V and the hot water feed rate to th...

Страница 61: ...is used as a position setpoint for controlling the modulating 3 way valve When the cold requirement is zero the control signal is zero 0V The cold water feed rate to the cooling coil is zero When the...

Страница 62: ...g coil is to maintain a sufficient temperature factory setting 5 C at the fresh air inlet of the plate heat exchanger in order to avoid any risk of icing of the condensed water vapour on the return ai...

Страница 63: ...cooling and anti icing bypass sequences The electric fresh air preheating coil is equipped with an NC normally closed safety thermostat THSD set at 100 C which cuts off the power supply to the KD con...

Страница 64: ...el drive motor starts when the signal exceeds 1 1V and stops when the signal drops below 0 6V Above 9 5V the exchanger operates at maximum speed Between 1 1V and 9 5V the rotation speed of the wheel f...

Страница 65: ...nger The bypass operates when there is A need to modulate heat recovery which is the case when There is a heating requirement and the return air temperature is higher than the fresh air temperature th...

Страница 66: ...nger on the return air side when the outside air temperature is particularly low winter period installation at altitude etc the cold fresh air volume is diverted from the exchanger in order to prevent...

Страница 67: ...n function see ANTI ICING FUNCTION BY REDUCING THE SUPPLY AIR VOLUME The anti icing function is activated when the exhaust temperature drops below 3 C and stops when the temperature rises above 4 C Th...

Страница 68: ...ctory setting for all machines the controller interprets this as a fan malfunction and may activate certain alarms If an electric heating coil is used it is only activated if the pressure is higher th...

Страница 69: ...ory set in the control programme for each machine The supply and return air volume is also used as a fan run feedback signal When the measured volume is below a certain threshold different for each ma...

Страница 70: ...open in the idle state when there is no air volume and closes when fan air volume results in a differential pressure of more than 25 Pa Reference point Details 1 Setting jumpers 2 Zero setting sensor...

Страница 71: ...inals 1 and 3 is closed 2 Pressure switch electrically disconnected The voltage between terminals 1 and 3 is a 0V DC electrically connected pressure switch The corresponding digital input DI must indi...

Страница 72: ...sensor wiring plug as close as possible to the corresponding controller input 32 CO2 sensor The CO2 sensor converts the CO2 concentration in the air stream in which it is installed return into an ana...

Страница 73: ...a digital algorithm integrated in the controller that continuously calculates a setpoint e g fan speed setpoint from the difference error between the adjusted setpoint e g supply air pressure and the...

Страница 74: ...ific devices Presence of an external disturbance that generates air volume instabilities in the machine e g 90 curved air duct immediately after leaving entering the unit gusts of wind etc External di...

Страница 75: ...misleading but quite normal This difference in operation is very important when conducting a diagnosis on DOs or on a consumer connected to them The table below summarises the values to be obtained f...

Страница 76: ...tware versions of the display and controller can be accessed on the Programme info page from the symbol on the Menu page Display technology LCD TFT Liquid Cristal Display Thin Film Transistor Touchscr...

Страница 77: ...values of the machine To resetting or adjusting the maintenance counter interval To active alarms and the history of recorded alarms Service 3333 All Guest level functions as well as Setting the clock...

Страница 78: ...agnosis is required Z MASTER V1122 CSY INM Zehnder Easy5 0 Supply Fan Temperature Return Fan Temperature Fresh air temperature Bypass temperature Preheating temperature Current setpoint Measure Curren...

Страница 79: ...le inspection tasks to be spread out and a possible next service date to be planned 35 6 Navigation and menu access The Main Menu page is accessed from the home page 1 button Guest level access User l...

Страница 80: ...tment of thermal related setpoints Service Temperature control mode Temperature setpoint s Temperature limits Reading the controller s input output values Service Analogue inputs AI UAI Digital inputs...

Страница 81: ...Zehnder EASY 5 0 81 Notes Z MASTER V1122 CSY INM Zehnder Easy5 0...

Страница 82: ...Zehnder EASY 5 0 82 Notes Z MASTER V1122 CSY INM Zehnder Easy5 0...

Страница 83: ...Zehnder EASY 5 0 83 Notes Z MASTER V1122 CSY INM Zehnder Easy5 0...

Страница 84: ...Company 1st line of address Town Country email website Z MASTER V1122 CSY INM Zehnder Easy5 0 en subject to change without notice...

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