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Euroclima ZHK NANO Instruction Manual

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ZHK NANO
INSTRUCTION MANUAL

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Summary of Contents for Euroclima ZHK NANO

  • Page 1 ZHK NANO INSTRUCTION MANUAL...
  • Page 2 Instruction and Operation Manual ZHK NANO In addition to the instructions in this guide, subject-specific standards, as well as local, national and international regulations must be observed. Please give this instruction manual after completion of the work to the operating staff of the AHU. Please keep the complete instruction and operating manual at your documents.

  • Page 3: Table Of Contents

    Reception control / unloading / transportation to installation site ........14 Reception control ......................14 Unloading / transportation to installation location ............15 Lifting of ZHK Nano units ....................16 3.3.1 Weight specifications of units or unit parts ................ 16 3.3.2...
  • Page 4 EC motors ........................41 Repair switch (emergency stop switch) ................42 Electric heaters ......................42 7.4.1 AHUs equipped from EUROCLIMA with control ..............43 Frost protection for plate heat exchanger ..............45 Lighting .......................... 45 Commissioning ........................46 Preliminary steps ......................46 8.1.1...
  • Page 5 Instruction and Operation Manual ZHK NANO 14.2 Temperature setpoints ....................66 14.2.1 Operating mode of the temperature control ............... 66 Return air cascade (RetCasc) ..................67 Supply air........................67 Return air ........................67 Room cascade (RoomCasc) ................... 68 Room ..........................68 14.2.2 AHU with 3 batteries (saturation temperature) ..............
  • Page 6 Instruction and Operation Manual ZHK NANO Figure index ..........................111 Table index ..........................113 translation from original instruction manual - V09-18.1 5 / 113...

  • Page 7: Introduction

    Instruction and Operation Manual ZHK NANO Introduction Model code 15/6 – 15/6 ZHK INOVA AHU type (standard) AHU execution Unit size supply air Unit size exhaust air Legend used for AHU type ZHK 2000 standard housing type ZHK INOVA thermal bridge reduced housing type...

  • Page 8: Intended Use / Foreseeable Misuse

    Instruction and Operation Manual ZHK NANO Intended use / foreseeable misuse 1.2.1 Intended use An AHU is used, depending on the chosen model, to create a desired indoor air quality. Parame- ters are… air change air temperature and humidity to filter normal contaminated air in special cases for filtering air for clean room applications The units are suitable for…...

  • Page 9: Documentation

    CE-conformity / incorporation declaration according to Machinery Directive 2006/42/EC An AHU (or any part thereof) supplied by EUROCLIMA is by definition of Machinery Directive 2006/42/EC an incomplete machine, because it is limited in function and is only a part of the build- ing system.

  • Page 10: Installation Instructions For The Proper Installation In The Building System

    Connection to an external protective conductor system See chapter 7.1 (Connecting to an external protective conductor system). Electric heater Installation (if not supplied by EUROCLIMA) and connection of thermostats for safety shutdown, see chapter 7.4 (Electric heaters). Frost protection for plate heat exchangers See chapter 7.5 (Frost protection for plate heat exchanger).

  • Page 11: Indications For Minimizing Specific Hazards

    Instruction and Operation Manual ZHK NANO Flexible connection Installations (if not supplied by EUROCLIMA) refer to chapter 6.3 (Duct connection – airside connection to AHU). Heat exchanger For all heat exchangers which are connected on-site, irrespective of the medium used (water, wa- ter-glycol mixture...), it must be ensured by the customer that the resulting assembly meets the...
  • Page 12 Instruction and Operation Manual ZHK NANO Exposure to harmful substances in case of fire In case of fire, some materials can produce noxious substances. In addition, harmful vapors can escape from the unit. Therefore, severe respiratory protective equipment is required and the danger zone has to be avoided.

  • Page 13: Conformity To Laws And Directives

    Tub in the outside-air intake section The AHU ZHK Nano is not equipped with a tub in the outside-air intake section as standard. In or- der to fulfill the requirements of VDI 6022 a tub must be installed in the area of the fresh air intake section, depending on the location of the AHU.

  • Page 14: Erp Conformity According To Directive (Eu) 1253/2014

    According to VDI 6022 all intake openings have to be equipped with an intake grid (mesh size 20 x 20 mm). Such intake grids are not delivered by default by EUROCLIMA, but it is possible to order them as an option. Anyway, the mounting of intake grids at all intake openings has to be ensured on site.

  • Page 15: Reception Control / Unloading / Transportation To Installation Site

    Loose supplied parts and assembly materials are in a nylon bag or a box in the unit. If damages are found, immediately a damage report must be created and sent to EUROCLIMA. Only then the transport company can make the claim against the insured (Note damage on the shipping documents with date and signature in the presence of the carrier).

  • Page 16: Unloading / Transportation To Installation Location

    Unloading / transportation to installation location Forklift, lift truck transport In accordance with the EUROCLIMA drawing the AHU will be delivered as one or more delivery section(s). The AHU parts are delivered on pallets and can be unloaded and moved by forklift or lift truck.

  • Page 17: Lifting Of Zhk Nano Units

    Instruction and Operation Manual ZHK NANO Lifting of ZHK Nano units The ZHK Nano basic unit is usually delivered as monobloc, see Figure 5. If there are any addi- tional unit sections, the same specifications apply for lifting the unit, which are described below.

  • Page 18: Mounting Of Crane Lugs

    Figure 8: Crane lug mounted Screws and nuts are delivered with the lifting lugs and must be tightened with the torque according to Table 2. If the lifting lugs are already mounted by EUROCLIMA, the screws must be checked before lifting of the AHU.
  • Page 19 Instruction and Operation Manual ZHK NANO Base frame height Figure 9: Base frame height Base frame height H (mm) Screw type M8x20 Table 2: Tightening torque for screws The force effect has to take place uniformly across all four crane lugs.

  • Page 20: Further Necessary Actions For The Overlifting Of Both, Delivery Sections On Crane Lugs As Well As Monoblocs

    Instruction and Operation Manual ZHK NANO Further necessary actions for the overlifting of both, delivery sections on crane lugs as well as monoblocs The AHU sections or monoblocs must be lifted with appropriate equipment e.g. belt with hook. The recommended minimum load capacity per load carrying equipment is 50% of the total weight of the delivery section or monobloc.

  • Page 21: Storage

    Instruction and Operation Manual ZHK NANO Storage The delivery sections generally are packed in nylon. This package is suitable to protect the AHU during loading and unloading from bad weather, but not for outdoor storage. The insertion into a dry area after unloading is therefore essential for the preservation of the unit.

  • Page 22: Foundation

    Instruction and Operation Manual ZHK NANO Foundation Recommended are solid foundations of reinforced concrete, as shown in Figure 13 left, or strip foundations, as shown in Figure 13 right. For strip foundations, concrete or steel beams shall be used, see Figure 13 bottom-right. Steel beams constructions must have an appropriate stiffness in relation to the unit size.

  • Page 23: Erection

    In this context, it is recom- mended to conclude an insurance against damage caused by water and other liquids. EUROCLIMA is not liable for damages that may arise due to leakage of the AHU, of fittings, of pipes or hoses or due to condensation.
  • Page 24 Instruction and Operation Manual ZHK NANO Figure 14: Pulling AHU sections together Figure 15: Pulling AHU sections together (detail) For noise insulation, it is recommended, depending on the location of the erection, to underlay the AHU with cork, Mafund plates or Sylomer strips. The used absorbent material must be adjusted to the load to achieve optimum noise insulation.

  • Page 25: Assembly

    Instruction and Operation Manual ZHK NANO AHU which are not designed to stack, may not be stacked (one on the other). Lightning protection for roof units A lightning protection, especially for roof units, must be professionally installed on site according to national rules. Otherwise, a fire can be caused by a lightning strike.

  • Page 26: Standard Connections And Connection Components

    Instruction and Operation Manual ZHK NANO Figure 21: Applying the sealing agent Figure 20: Sealing agent (Sikaflex) 5.1.2 Standard connections and connection components Base frame connection Figure 23: Screw connection of base frames Figure 22: Hexagon bolt with locknut M8x20 /...

  • Page 27: Assembly Of Delivery Sections

    Instruction and Operation Manual ZHK NANO Comfort compound Figure 28: Connection via comfort compound Figure 27: Comfort compound In any case, it is necessary to connect the device parts via the base frame, the connection angle as well as the comfort compound.
  • Page 28 Instruction and Operation Manual ZHK NANO thereafter, the relevant delivery sections have to be moved together and then screwed to- gether. 2. If the unit separation is accessible at the inside via a door (see Figure 35), then the joints (Figure 36) have to be closed over the entire circumference with the supplied sealing agent (Sikaflex) after screwing together the delivery sections.

  • Page 29: Doors

    Instruction and Operation Manual ZHK NANO Roof flange Unit flange Figure 34: Applying the sealing agent on the frontal joints Joints Joint Access (door) Figure 36: Sealing the section Figure 35: Unit separation acces- connection (joint) with the sealing sible via door...
  • Page 30 Instruction and Operation Manual ZHK NANO 1. Open the hinged locks to the right (Figure 38) 2. Pull on the flaps in order to swivel the door panel and to get access to the components in- side (Figure 39) Figure 38: opening of the hinged locks...

  • Page 31: Dampers

    During the installation it must be noted, that the filter bags will not be clamped or damaged. Each filter bag must freely adjust itself in the airstream. If the filters are not included in the scope of delivery of EUROCLIMA, it must be considered that the used filters fulfills the requirements of VDI 6022.

  • Page 32: Laterally Removable Prefilters

    Instruction and Operation Manual ZHK NANO 5.4.1 Laterally removable prefilters The filters are supplied mounted and are equipped with a pull-out tool for more than one filter per guiding. Figure 44: Pulling out the filters Figure 45: Pull-out tool 5.4.2...
  • Page 33 Instruction and Operation Manual ZHK NANO Figure 49: Lifting the filter bags Attention: If different widths of filter are planned for one filter frame with clamp- ing mechanism, then the order of the insertion have to be according the filter frame raster (see figure beneath).

  • Page 34: Installation

    (STRAUB coupling) is recommended (Figure 58). This coupling could be included optionally in the scope of delivery of EUROCLIMA, if not, then it must be provided on site. In order to avoid a dam- age of the copper pipe of the heat exchanger due to mechanical force, a ring is used to reinforce the copper pipe (Figure 56 and Figure 57).
  • Page 35 Figure 58: STRAUB coupling Figure 59: mounted STRAUB coupling Other types of connection, e.g. welding or soldering are not recommended by EUROCLIMA, be- cause of risk of fire of neighboring materials. If one of those type of connection is chosen, the act- ing assembler carries the responsibility.

  • Page 36: Drain For Condensate And Excess Water

    Instruction and Operation Manual ZHK NANO Hydraulic connection schemes of heating or cooling coil should be carried out as shown in the scheme Figure 61 with a three way valve as a mixing valve. Compared with a flow control using a straight-through valve this connection avoids unequal temperature profiles, in that way air heating or cooling is quite uniform along the coil surface.
  • Page 37 Instruction and Operation Manual ZHK NANO The following conditions are essential for correct operation: At each drain a siphon must be connected. Several drains may not be connected to one siphon. The water from the siphon must run in a funnel.

  • Page 38: Ball Siphons

    6.2.2 Ball siphons If ball siphons with the below shown design are included in the delivery from EUROCLIMA, then the following items should be observed during installation: Depending on the suction side or pressure side mounting position, the siphon body has to be in- stalled so that the direction of the arrow (see Figure 66) corresponds to the flow direction.

  • Page 39: Duct Connection - Airside Connection To Ahu

    Figure 69: Pressure side installation: remove the black closing plug Duct connection – airside connection to AHU Depending on the customer's requirements, EUROCLIMA devices are equipped with various ac- cessories and options for attaching air duct elements like dampers, flexible connections, frames, panel flanges, etc.
  • Page 40 Instruction and Operation Manual ZHK NANO Requirements Ensure proper performance of the AHU by avoiding of excessive pressure drops in the duct. To minimize the noise, the basic rules of the duct construction and acoustic design shall be ob- served.

  • Page 41: Insulation Of Fresh Air Damper

    Instruction and Operation Manual ZHK NANO Figure 70: Information on the screw distance 6.3.1 Insulation of fresh air damper Before connecting the duct section, the flange of the fresh air damper must be insulated in the course of the fresh air duct insulation on site. This action is urgently required to prevent the for- mation of condensation by heat transfer.

  • Page 42: Ec Motors

    Instruction and Operation Manual ZHK NANO 10 mm², otherwise 4 mm² at units with control. Depending on the cross-sectional-surface of the outer conductor, the requirements regarding minimum cross-sectional-surfaces of the protective earth system according to EN 60204-1, pt. 5.2, table 1 have to be considered additionally.

  • Page 43: Repair Switch (Emergency Stop Switch)

    An electric heater is designed to heat the airflow, which is stated on the technical data sheet, from the specified air inlet temperature to the air outlet temperature. EUROCLIMA provides electric heaters with one or more stages according to customer requirements.

  • Page 44: Ahus Equipped From Euroclima With Control

    Subsequent damages up to fire spread to the building are possible. In order to avoid the above mentioned risks EUROCLIMA provides as a standard electric heaters with 2 independent safety thermostats.
  • Page 45 Instruction and Operation Manual ZHK NANO Safety concept Electric heater power supply is equipped with 2 contactors in serial connection! The 2 safety thermostats protect the AHU in two independent ways. First way: By hardware via contactors in the power supply; second way: by software via controlling. In case of failure contac- tors immediately cut off electric heater from power supply.

  • Page 46: Frost Protection For Plate Heat Exchanger

    At low temperatures and high air speeds, the condensate in the plate heat exchanger can freeze and cause its icing. For devices supplied by EUROCLIMA with control, this is prevented by a pressure monitoring of the plate heat exchanger and the temporary adjustment of the supply air volume flow.

  • Page 47: Commissioning

    Instruction and Operation Manual ZHK NANO Lighting with an at least protection of IP55 were used. Switches or junction boxes mounted on the outside of rooftop units must also have at least protection class IP55. For units with integrated control and lighting, an additional power supply for the lighting must be provided and separated from the power supply for the control cabinet.
  • Page 48 The air density at the measuring point is to set up manually, depending on sea level, temperature and humidity. In most cases, 1.2 kg/m³ is a suitable value. For AHUs supplied by EUROCLIMA with control, the airflow rate sensors are already preset. V09-18.1...

  • Page 49: Heat Exchanger

    Instruction and Operation Manual ZHK NANO 8.1.2 Heat exchanger The heat exchangers, fittings and valves shall be tested for tightness. Water heat exchangers Normal heating, cooling coils filled with water and additives for freeze and corrosion protection: Open vent valve.

  • Page 50: Maintenance

    The external pressure drop is higher than indicated on the technical data sheet. e.g. closed fire or VAV dampers in the duct If the airflow is incorrect, then please contact in doubt the competent EUROCLIMA office. Maintenance EUROCLIMA units are built mostly maintenance free and easy to maintain. The maintenance inter- vals (see Table 6) are indicative for normal operating conditions.

  • Page 51: Fan / Motor Group

    All filters should be checked for tightness, as otherwise they could be sucked in and could lead to damage. If units are equipped with EUROCLIMA control, then a corresponding warning message is dis- played on the HMI (see Figure 78) when the differential pressure limitation is reached.

  • Page 52: Panel Filters

    Instruction and Operation Manual ZHK NANO Figure 78: Warning message filter If such a warning message is displayed, then appropriate actions have to be taken immediately (e.g. change of air filters). 9.3.1 Panel filters Dry panel air filters (cleanable). The contamination level of the filter can be controlled by the differ- ential pressure drop (check every 14 days to 1 month).

  • Page 53: Heat Exchangers

    Instruction and Operation Manual ZHK NANO Figure 79: Transport of filter bags Wet cleaning Rinse the bag with upward opening with a not too strong jet of water. The mud must pass flushed through the filter material to the outside. Possibly, add to the water a little bit detergent.

  • Page 54: Electric Heater

    Check built-in safety devices and electrical parts for proper functioning. Dampers EUROCLIMA dampers of type J are nearly maintenance free. Check for dirt, damage and corro- sion, clean if necessary with compressed air or steam jet. Check the function and correct rotation.

  • Page 55: Energy Recovery Systems

    Instruction and Operation Manual ZHK NANO Energy recovery systems 9.7.1 Plate heat exchangers Plate heat exchangers are made of highly corrosion-resistant high-grade aluminum and have no drive or moving parts. The lifetime is nearly unlimited, as long as the differential pressure between the plates does not exceed the max.

  • Page 56: Information On Airborne Noise Emitted By The Air Conditioning Units - On Request

    Instruction and Operation Manual ZHK NANO Component Action Section monthly ¼ year ½ year year Reference chapter Housing Ch / Cl Housing inside and outside Fan / motor Corrosion check 9.2.1 Fan Flexible connection Protection grid Ch / Cl / M Motor, general 9.2.2 Motor...

  • Page 57: Disassembly And Disposal

    Instruction and Operation Manual ZHK NANO 11 Disassembly and disposal 11.1 Disassembly At disassembly, the safety instructions of chapter 2 (Safety instructions) must be considered. It also apply the instructions in chapter 3 (Reception control / unloading / transportation to in- stallation site).

  • Page 58: Disposal

    Instruction and Operation Manual ZHK NANO 11.2 Disposal The operator is responsible for disposal of the shipment (packing material), operation (filters, tools, spare parts etc.), and for the disposal of the air handling unit itself. The disposal of the material must be done by qualified technicians according to the international, national and local regulations.
  • Page 59 Instruction and Operation Manual ZHK NANO User manual NANO V0.03 April 2018 Hotline +39 335 1334212 58 / 113 V09-18.1...

  • Page 60: Display

    Instruction and Operation Manual ZHK NANO 12 Display 12.1 Push buttons, rotary button Figure 84: Display The operation takes place via the elements described below:  Info-button return to the main / start page or application info page AHU off...

  • Page 61: Display

    Instruction and Operation Manual ZHK NANO 12.2 Display The display is divided into several areas: Headline 29.07.11 13:32 Stop/Alarm Password level ▲ All settings ► Line current / total Operating mode Outdoor temp. 13.2°C Submenu Further lines Supply temp. 21.7°C Return temp.

  • Page 62: Line With Submenu

    Instruction and Operation Manual ZHK NANO Line with submenu An arrow right next to the line indicates a submenu; the line can be selected with the rotary button and the submenu can be entered with Ok. Value, setpoint Select the line of the setpoint to be changed and confirm with Ok; a new page displays the setpoint with the limits and the location of the setpoint within the limits with an arrow on the bar.

  • Page 63: Adjustability

    Instruction and Operation Manual ZHK NANO Adjustability If a line is selected, the text appears on the left white on a black background. Is also the value white on black background, then the value is adjustable, otherwise not. An adjustment is not possi- ble without registration.

  • Page 64: All Settings

    Instruction and Operation Manual ZHK NANO  Air flow rate, duct pressure and fan speed  Power of the recovery  Valve positions and pumps for heating and cooling batteries  Humidifier The state display shows the current operating mode / operating mode source of the AHU: ...

  • Page 65: Fan Setpoints

    Instruction and Operation Manual ZHK NANO Setpoints/settings ► Flow rate ► Temperature ► Humidity ► Air quality Night setback Figure 92: Setpoints/settings 14.1 Fan setpoints The air flow rate, duct pressure, fan stage or fan speed is set via this page of the display; depend- ing on the operating mode, more or less or no settings can be changed.

  • Page 66: Pressure Control

    Instruction and Operation Manual ZHK NANO In the night setback mode, the rooms can be cooled with the cool outdoor air outside normal work- ing hours; all heating batteries, cooling batteries, recovery systems, humidity and air quality control are disabled. The setting is made in the menu Night setback, which can be entered directly.

  • Page 67: Speed Control

    Instruction and Operation Manual ZHK NANO Speed control Similar to the airflow rate control the speed for economy, comfort and night setback mode can be set. The fans are operated at the set speed, regardless of airflow rate or duct pressure.

  • Page 68: Return Air Cascade (Retcasc)

    Instruction and Operation Manual ZHK NANO Return air cascade (RetCasc) The return air temperature is used as a control variable. The supply air setpoints for the heating batteries and cooling batteries are calculated by the deviation between the current return air tem- perature and the setpoints.

  • Page 69: Room Cascade (Roomcasc)

    Instruction and Operation Manual ZHK NANO fluctuations. The limiting function of the supply air tries to limit the battery power to comply with the specified minimum and maximum values. A dead zone can be defined between the setpoints for heating and cooling, by which a deactivation of the heating batteries and cooling batteries can be achieved (energy saving).

  • Page 70: Ahu With 3 Batteries (Saturation Temperature)

    Instruction and Operation Manual ZHK NANO 14.2.2 AHU with 3 batteries (saturation temperature) If the device has a preheating battery, a cooling battery and a postheating battery, then a satura- tion temperature sensor can be mounted after the cooling battery. By this sensor, the first two bat- teries can be controlled, whereby the setpoint for this measurement point is lowered at a dehumidi- fication requirement.

  • Page 71: Setpoint And Control Variable

    Instruction and Operation Manual ZHK NANO Setpoint Description Default Summer compensation Start Outdoor temperature start point for shift 25 °C Outdoor temperature end point for shift 30 °C Delta Shift value of the cooling setpoints at the end point 0 °C...

  • Page 72: Humidity Setpoints

    Instruction and Operation Manual ZHK NANO sequence for temperature regulation (unless dehumidification by means of recirculation damper has been configured). For example: recirculation damper requirement = 50%, i.e. with a base time of 60 minutes, the ventilator operates 30 minutes in fresh air mode and 30 minutes in recirculated air mode (in this mode, the return fan is at a standstill).

  • Page 73: Dehumidification With Recirculation Damper

    Instruction and Operation Manual ZHK NANO 14.3.5 Dehumidification with recirculation damper For the dehumidification by means of the recirculation damper, the absolute humidity of the supply air and of the exhaust air is compared. In case of a higher supply air humidity (corresponds to the fresh air humidity in the fresh air mode), it is switched to recirculated mode as a function of the de- humidification requirement (see chapter 14.2.6 for more information), in order to not increase the...

  • Page 74: Sensor Type, Control Procedures

    Instruction and Operation Manual ZHK NANO Air quality setpoints CO2 Eco 1200 ppm CO2 Comfort 800 ppm Control signal 0.00% ----------------------------- Supply max 5000m3/h Return max 5000m3/h Figure 98: Air quality 14.4.1 Sensor type, control procedures One type of sensor and one control procedure come into use, depending on the execution of the AHU.

  • Page 75: Night Setback

    Instruction and Operation Manual ZHK NANO air quality decreases, then the airflow rate, speed or duct pressure increases to an adjustable max- imum value. This operating mode can only be used for airflow rate, speed or duct pressure control. The air flow rate, speed or operating stage specified by the economy or comfort mode is always kept and is increased by the air quality control.

  • Page 76: Operating Mode / Scheduler

    Instruction and Operation Manual ZHK NANO Night setback Room setpoint 22.0°C Min run time 30min Supply 5000m3/h Rturn 5000m3/h Figure 99: Night setback Setpoint Description Default Room setpoint Room temperature setpoint for night setback 22 °C Min run time Minimum operating time, even if the...

  • Page 77: Operating Modes

    Instruction and Operation Manual ZHK NANO Operating mode/scheduler 1/19 29.07.11 13:32 Operating mode Room unit Auto Auto Schedule Comfort Figure 100 : Operating mode / scheduler 15.1 Operating modes The AHU can be operated with different operating modes, whereby different setpoints for the fan, temperature and humidity control are active.

  • Page 78: Exception Day(S)

    Instruction and Operation Manual ZHK NANO Attention:  If only an entry for switching on and none for switching off is entered, then the AHU runs till midnight and then with the settings of the next day.  It must be entered at least one switching point per day; if all switching points are deleted, then the default setting is entered automatically (7:00 Comfort, 18:00 Off) ...

  • Page 79: Calendar Fix Off (Ahu Fix Off)

    Instruction and Operation Manual ZHK NANO Example: If the AHU of a gym should run in March and April every Thursday evening from 20:00 to 22:00, then the setting has to be performed as followed: Setting Description Default In the line Exception 1: Time 1st entry –...

  • Page 80: Date / Time Setting

    Instruction and Operation Manual ZHK NANO Setting Description Default -Weekday 1st entry - weekday (choice = WDay) ", ", " Choice 2 2nd entry – activation and type of entry -(Start)date 2nd entry - day (choice = date) ", ". ".""...

  • Page 81: Room Unit

    Instruction and Operation Manual ZHK NANO Line Description Default display Friday Set the scheduler for Friday Saturday Set the scheduler for Saturday Sunday Set the scheduler for Sunday Copy... Copy the Scheduler (Mo → Tu..Fr, Mo → Tu..Su, Sa → Su)

  • Page 82: Alarm State

    Instruction and Operation Manual ZHK NANO Alarm Figure 103: Room unit 17 Alarm state The display page does not display the individual alarms, but which alarm classes are active. Indi- vidual alarms are displayed on the alarm display (chapter 21).

  • Page 83: Password Handling

    Instruction and Operation Manual ZHK NANO Alarms and warnings are provided as a potential-free contact via the signal module. Alarms of alarm class Danger and Alarm(A) are reported at the alarm contact, alarms of the alarm class Warning(B) and Maintain(C) are reported as a warning.

  • Page 84: Alarm Display

    Instruction and Operation Manual ZHK NANO Application info Euroclima Via San Lorenzo 36 39031 Brunico ETAMATIC V4.00.00 (c)08.2016 Figure 106: Application info 21 Alarm display 21.1 General If a new alarm occurs, then the Alarm-button starts flashing. Alarms require an acknowledgement, i.e.

  • Page 85: Alarm List, Alarm List Detail

    Instruction and Operation Manual ZHK NANO  Danger It is a very critical alarm, which requires an immediate switchoff of the AHU  Alarm / A Critical alarm; it may lead to the switchoff of the AHU, or the AHU may continue to run. The affected component of the AHU is usually not fully functional (e.g.

  • Page 86: Alarm History

    Instruction and Operation Manual ZHK NANO  If you cannot find the cause or you are unfamiliar with the meaning of the message, contact your AHU fitter, service engineer or call the EUROCLIMA hotline (see the title page of this document). 21.3 Alarm history All alarms are shown in this list, also the already corrected.

  • Page 87: Alarm Index

    Instruction and Operation Manual ZHK NANO Setting Description Default Alarm history: Reset Clear the entire alarm list Sort order 1 1st sort order criteria Time Sort order 2 2nd sort order criteria Time Descending order Last occurred alarm on the top of the list...
  • Page 88 Instruction and Operation Manual ZHK NANO Message Description Alarm class Return humidity The return air humidity sensor is broken Low(B) Call the service engineer for the replacement of the sensor Room humidity The room humidity sensor is broken Low(B) Call the service engineer for the replacement...
  • Page 89 Instruction and Operation Manual ZHK NANO Message Description Alarm class Electric battery Alarm message from the electric heating High(A) battery Check the power supply (electric protection) and the security thermostat Call the service engineer when this message occurs repeatedly Humidifier...
  • Page 90 Instruction and Operation Manual ZHK NANO Alarm type Description LowLimit Measured value lower than the low limit; e.g. temperature too low Table 34: Alarm type V09-18.1 89 / 113...
  • Page 91 Instruction and Operation Manual ZHK NANO Data point list NANO V0.06 April 2018 Hotline +39 335 1334212 90 / 113 V09-18.1...

  • Page 92: Introduction And Configuration

    Instruction and Operation Manual ZHK NANO 22 Introduction and configuration The interfaces will be set up by the service technician and afterwards they will be ready for opera- tion. Subsequently, the configuration of the interfaces is described, in order to change the interface parameters.

  • Page 93: Modbus Rtu

    Instruction and Operation Manual ZHK NANO 22.2.1 Modbus RTU This module provides two communication ports (channel 0, channel 1), in which only channel 0 can be used for communication to the superior system. Channel 1 is reserved for internal applications.

  • Page 94: Bacnet Ms/Tp

    Instruction and Operation Manual ZHK NANO Parameter Value Description Even Even parity Odd parity Response timeout Response timeout setting [5 s] Termination Enable 120Ω termination resistor [Passive] Passive No termination Active Termination (120Ω) General Module configuration/info Software version Display software version...

  • Page 95: Bacnet Ip

    Instruction and Operation Manual ZHK NANO Parameter Value Description Termination Enable the termination resistor of the bus line [Passive] Baud rate Baud rate setting [76800] MX info frame MX info frame setting [1] Max master Max master setting [18] General:...

  • Page 96: Lon

    Instruction and Operation Manual ZHK NANO Parameter Value Description DHCP Enable DHCP [Active] → Display effective DHCP state WINS name Display WINS name [POL908_..] IP address setting [127.0.0.1] NOTE: The IP address must be entered in the form xxx.xxx.xxx.xxx, i.e.

  • Page 97: Modbus Rtu/ Ip Controller Interfaces

    Instruction and Operation Manual ZHK NANO Parameter Value Description General: Module configuration/info Software version Display software version Device ID Display device ID Module Display module information Use default Active Set back to the default settings Table 40: LON configuration 22.2.5 Modbus RTU/ IP controller interfaces Directly on controller there are 2 communication ports availabe (1 for IP and 1 for RTU).
  • Page 98 Instruction and Operation Manual ZHK NANO Parameter Wert Beschreibung Password Password for WebVisu Modbus: Modbus RTU: State Displays hardware status of interface Slave address Adjustment slave address [1] Baudrate Adjustment baudrate [9600]; 1200, 2400, 4800, 9600, 19200, 38400 Baud Parity...

  • Page 99: Data Points Ahu

    Instruction and Operation Manual ZHK NANO 23 Data points AHU Description Unit Modbu BACnet Measured values: Outdoor- / fresh air temperature 0,1 °C OutDoorTemp nvoTemp01 Supply air temperature 0,1 °C SupplyTemp nvoTemp02 Supply air humidity 0,1 % SupplyHumidity nvoHum00 [%] Return air temperature 0,1 °C...
  • Page 100 Instruction and operation manual ZHK NANO Description Unit Modbu BACnet Operating mode: Operating mode from HMI 0..4 Opmode_HMI 0=Off, 1=Night Setback, 2=Eco, 3=Comfort, 4=Auto Operating mode from room unit 0..4 Opmode_RoomUnit 0=Off, 2=Eco, 3=Comfort, 4=Auto Operating mode from BMS 0..4...
  • Page 101 Instruction and Operation Manual ZHK NANO Description Unit Modbu BACnet Fan shut down delay electric battery 0.1 s Set_FanShutDownDelay Supply speed smoke fan 0.1 % Set_SupplySpeedSmoke Supply speed fireman fan 0.1 % Set_SupplySpeedFire Return speed smoke fan 0.1 % H109...
  • Page 102 Instruction and operation manual ZHK NANO Description Unit Modbu BACnet Maximum return airflow rate from dehumidification R32/W32 m³/h Set_ReturnFlowDeHumMax Supply airflow rate – request from air quality control m³/h H106 SupplyFlowQAir Return airflow rate – request from air quality control m³/h...
  • Page 103 Instruction and Operation Manual ZHK NANO Description Unit Modbu BACnet Return fan speed – request from dehumidification 0,1 % ReturnSpeedDeHum Supply fan speed – current set point 0,1 % SupplySpeedSet Return fan speed – current set point 0,1 % ReturnSpeedSet...
  • Page 104 Instruction and operation manual ZHK NANO Description Unit Modbu BACnet Temperature control: Temperature control mode 0=Return air/supply air cascade, 1=Constant supply air, 0..4 Set_TempCtrlMode 2=Return air, 3=Room/supply air cascade, 4=Room nviTemps Minimum supply air temperature 0,1 °C Set_MinSupplyTemp {standby_cool} nviTemps Maximum supply air temperature 0,1 °C...
  • Page 105 Instruction and Operation Manual ZHK NANO Description Unit Modbu BACnet Winter compensation – fresh air temperature endpoint 0,1 °C Set_WinCompEnd Winter compensation – offset at endpoint 0,1 °C Set_WinCompDelta Winter compensation – current offset 0,1 °C WinCompVal nvoTemp05 Current controlled variable/temperature 0,1 °C...
  • Page 106 Instruction and operation manual ZHK NANO Description Unit Modbu BACnet Heating battery 1/pre heating battery – valve position 0,1 % HeatBatt1_Valve nvoPerc04 Heating battery 1/pre heating battery – pre heating active 0..1 HeatBatt1_PreHeatAct Heating battery 1/pre heating battery – Auto start temperature 0.1 °C...
  • Page 107 Instruction and Operation Manual ZHK NANO Description Unit Modbu BACnet Dehumidification – setpoint for Eco mode 0,1 % H132 Set_DeHumEco Dehumidification – setpoint for Comfort mode 0,1 % H133 Set_DeHumCmf NviHum01 [%] Maximum supply air humidity 0,1 % H134 Set_SupplyHumMax...
  • Page 108 Instruction and operation manual ZHK NANO Description Unit Modbu BACnet Alarm acknowledge (1=Acknowledge, automatic return to 0 0..1 H220 Set_AlarmAck after 2s) Description Modbus BACnet AHU: sensor alarms I300 AHU_SenAlm1 nvoAlarm 0=Outdoor / fresh air temperature OutDoorTemp Bit 0..15 1=Supply air temperature...
  • Page 109 Instruction and Operation Manual ZHK NANO Description Modbus BACnet AHU: alarms I302 AHU_DigIpt1 nvoState 0=Supply/fresh air filter 1 Alm_SupplyFilter1 Bit 0..15 1=Return air filter 1 Alm_ReturnFilter1 2=Thermostat/electric protection for electric Alm_EBatt battery 3=Fire alarm Alm_Fire 4=Freeze alarm from heating battery 1...
  • Page 110 Instruction and operation manual ZHK NANO Description Modbus BACnet AHU: digital outputs I310 AHU_OutSta1 nvoDO 0=Supply fan 1 SupplyFan_Stage Bit 0..15 1= Return fan 1 ReturnFan_Stage 2=Pump/enable heat recovery HeatRec_Pump 3=Pump heating battery 1 HeatBatt1_Pump 4=Pump heating battery 2 HeatBatt2_Pump...
  • Page 111 Instruction and Operation Manual ZHK NANO Legend Flow rate setpoints valid with flow rate control Speed setpoints valid with speed control Pressure setpoints valid with duct pressure control Stage setpint valid with stage control Bit number 16Bit Unsigned Integer, 16Bit, the single bits are states/alarms 0= ..
  • Page 112 Instruction and Operation Manual ZHK NANO Figure index Figure 1: Do not climb on the unit! ....................14 Figure 2: Transport correct ......................15 Figure 3: Transport incorrect ......................15 Figure 4: Center of gravity centrally between the forks ..............15 Figure 5: Delivery unit monobloc ....................
  • Page 113 Instruction and Operation Manual ZHK NANO Figure 54: check, if filter lie on the sealing ..................32 Figure 55: Holding against with a pipe wrench ................33 Figure 56: copper pipe with reinforcing ring................... 34 Figure 57: copper pipe with inserted reinforcing ring ..............34 Figure 58: STRAUB coupling ......................
  • Page 114 Figure 109: Alarm history ......................85 Figure 110: Alarm lists configuration ..................... 85 Table index Table 1: Weight specifications ZHK Nano basic units and additional parts ........16 Table 2: Tightening torque for screws ................... 18 Table 3: Information on the screw distances ................. 39 Table 4: Torques for the motor terminal board ................
  • Page 115 Fax +39 0464 437 298 Tel. +91 22 4015 8934 info@biniclima.eu info@euroclima.in www.biniclima.eu www.euroclima.com Euroclima V09-18.01 Due to it’s commitment of continuous product development and improvement, Euroclima reserves the right to change specifications without notice. © Copyright by euroclima.com / fotolia.com...

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