Euroclima ZHK NANO Instruction Manual
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Euroclima ZHK NANO Instruction Manual

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Summary of Contents for Euroclima ZHK NANO

  • Page 1 =+. 1$12 ,16758&7,21 0$18$/...
  • Page 2 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 com- pletion of the work to the operating staff of the AHU.
  • Page 3 ZHK NANO Attention: For soft bags the lower bags of the filter cells are to lift up in order to prevent damage with the clamping system (Figure 60)! Figure 60: 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 4: Installation

    ZHK NANO Figure 64: pushing and clamping of the fil- Figure 65: check, if filter lie on the sealing ters to the rear wall Installation 6.1 Heat exchanger connection 6.1.1 General notes Before connecting the heat exchanger, the piping system must be rinsed thoroughly.
  • Page 5 (STRAUB coupling) is recommended (Figure 69). 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 67 and Figure 68).
  • Page 6 ZHK NANO Figure 71: Heat exchanger connection The heat exchanger operates according to the cross-counter-flow principle. Only preheat can be supplied for parallel flow operation on request. 1. All standard heating and cooling heat exchangers - counter flow 2.

  • Page 7: Drain For Condensate And Excess Water

    ZHK NANO Figure 73: Drain valve Figure 74: Vent valve 6.2 Drain for condensate and excess water Each drain must be equipped with a siphon. Siphons are available as accessories from EURO- CLIMA. 6.2.1 Standard siphons A space-saving design of the necessary siphon height we can do on request.

  • Page 8: Ball Siphons

    Figure 76: Siphon on pressure side 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 77) corresponds to the flow direction.
  • Page 9 ZHK NANO Siphon on suction side (in direction of airflow before the fan) Figure 78: Suction side execution Siphon on pressure side (in direction of airflow after the fan) The black plug must be removed for the pressure side installation (see Figure 80).

  • Page 10: Duct Connection ± Airside Connection To Ahu

    Figure 80: Pressure side installation: remove the black closing plug 6.3 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 11: Insulation Of Fresh Air Damper

    ZHK NANO Number of screws The duct component are screwed as follows, each at a distance of 120 mm from the corner additional number of screws see Table 3 and Figure 81. Additional number of Length or width screws <...

  • Page 12: Electrical Connection

    ZHK NANO Electrical connection The electrical connection must be executed in compliance with international regulations such as the Low Voltage Directive and the requirements of electromagnetic compatibility of national legislation and the requirements of the local electricity provider.

  • Page 13: Repair Switch (Emergency Stop Switch)

    ZHK NANO Before connecting to the local power network, must be controlled, that the local power supply coincides with the motor requirements from the nameplate. In gen- eral the fan motors are designed for continuous operation. Abnormal operating conditions, particularly multiple start-ups at short intervals should be avoided, they may lead to thermal overloading of the motor.

  • Page 14: Electric Heaters

    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 15 ZHK NANO The control of the electric heater always takes place in such a way, that the air temperature after the electric heater never exceeds the permitted air temperature in the unit (40 °C, if not differently specified in the technical data).
  • Page 16 ZHK NANO Cover cap on reset button Reset button Figure 84: Thermostat with Figure 85: Thermostat with cover cap on the reset button uncovered reset button Thermostat 2 (Figure 86) Position of thermostat casing: fastened on outside panel of AHU casing Triggering temperature: set to 70 °C ±...

  • Page 17: 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 18: Preliminary Steps

    ZHK NANO 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 19: Airflow Measurement By Differential Pressure Measurement At The Fan

    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. 50 / 116...

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