IV Produkt Envistar Compact Operation And Maintenance
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IV Produkt Envistar Compact Operation And Maintenance

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Operation and Maintenance
Envistar Compact
Order number:
Project:
Translation of the original instructions

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Summary of Contents for IV Produkt Envistar Compact

  • Page 1 Operation and Maintenance Envistar Compact Order number: Project: Translation of the original instructions...
  • Page 2 Unit specifications Unit type Size ACER   ACEC Output var. 1  2  3    Home Concept model   Control equipment Filter supply air ePM10-60% / M5   ePM1-50% / F7   Excl. filter ...

  • Page 3: Table Of Contents

    2.7 Extended warranty ..........................2.8 Spare parts ..............................2.9 Dismantling and decommissioning ................... Technical description ..........................3.1 Envistar Compact air handling unit ..................3.2 Home Concept ............................3.3 StarCooler cooling unit (code ACEC) ..................Wiring instructions and fuse protection ...................
  • Page 4 Table of Contents, cntd Operation ................................5.1 Hygiene inspection ..........................5.2 Actions in case of standstill ......................5.3 Commissioning ............................. Maintenance instructions ........................6.1 Service schedule ..........................6.2 Filter (code ACEF) ..........................6.3 Rotary heat exchanger (code ACRR) ..................6.4 Air heater water (ECET-VV) and Thermoguard (ECET-TV) ........

  • Page 5: Safety Precautions

    Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 5 1 Safety precautions Observe warning labels on the unit as well as the following safety precautions: 1.1 Lockable safety switch WARNING! High voltage and rotating fan impeller, risk of personal injury. Working on/servicing the unit – Shut down the unit via the ser- vice switch in the control equipment, then turn the safety switch to the 0 position and lock it.

  • Page 6: General

    Page 6 2 General 2.1 Intended use The air handling units in the Envistar Compact series are intended for comfort ventilation in buildings. When installed indoors, the air handling unit must be installed in an area that maintains a temperature between +7 ando +30°C, and with a moisture content of <3.5 g/kg in the fan room in winter.

  • Page 7: Ce Marking And Eu Declaration Of Conformity

    Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 7 2.4 CE marking and EU Declaration of Conformity The air handling units and any cooling unit (if selected) are CE marked, which means that upon delivery they conform to applicable provisions in EU Machinery Directive 2006/42/EC as well as to other EU Directives applicable to the types of air handling units, e.g.

  • Page 8: Maintenance

    Leakage inspection and registration The following applies to one-piece units with 5 CO₂ e(tonnes) refrigerant content or more per circuit – Envistar Compact with StarCooler (code ACEC, size 16): • Leakage inspectionmust be carried out by a certified refrigeration techni-...

  • Page 9: Extended Warranty

    In cases in which the equipment delivered falls under a 5-year warranty, in ac- cordance with ABM 07 with supplement ABM-V 07 or in accordance with NL 01 with supplement VU03, the IV Produkt Service and Warranty Manual is supplied with the product.

  • Page 10: Technical Description

    3 Technical description 3.1 Envistar Compact air handling unit Envistar Compact is fabricated as a packaged unit in various sizes as a right- or left-handed version. All units are equipped with rotary heat exchangers and are available as outdoor models. The units can be connected to ducts at the ends or via two of the connections at the top.

  • Page 11: Starcooler Cooling Unit (Code Acec)

    Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 11 3.3 StarCooler cooling unit (code ACEC) The cooling unit is equipped with a reciprocating compressor. Function Function COOL The cooling compressor starts when potential-free contact closes from the con- trol unit. Interlocking The compressor is interlocked across the ventilation unit.
  • Page 12 Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 12 Cooling circuit function A cooling system has four basic components: evaporator, condenser, expansion valve and compressor. The compressor carries out the work required to run the cooling process. The evaporator is located in the supply air for the unit. The heat from the outdoor air is taken up in this coil, thereby cooling the supply air.

  • Page 13: Wiring Instructions And Fuse Protection

    Unique Documentation at docs.ivprodukt.com (Technical Data and Control Diagram), or the product program IV Produkt Designer. 4.2 MK – Fans and heat exchangers electrically connected to terminal Code MK - units supplied without control equipment but with fans and heat ex- changers connected electrically to terminals.

  • Page 14: Hs - Without Control And Without Electrical Connection

    Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 14 4.3 US, HS - Without control and without electrical connection • Code US - for units without control equipment and without electrical con- nection, control diagrams are available for the cooling unit (code ACEC) under order unique documentation at docs.ivprodukt.com, for other connec-...
  • Page 15 Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 15 Rotary heat exchanger (code ACRR) Emotron OJ Electronics POWER SUPPLY POWER SUPPLY 1×230 V AC 1×230 V AC CONTROL – 1: GND CONTROL 0-10 V DC – 2: 0-10V COOLING RECOVERY (CLOSED CONTACT...

  • Page 16: Operation

    Page 16 5 Operation 5.1 Hygiene inspection Envistar Compact conforms to guidelines in VDI 6022 Part 1: Hygiene and Hy- giene Inspections of HVAC Systems. For this to apply, a hygiene inspection of the system must be carried out and the system must be cleaned thoroughly as needed before start-up.

  • Page 17: Commissioning

    DSEC191101.01.EN Page 17 5.3 Commissioning Envistar Compact with rotor (code ACER) and Envistar Compact with rotor and cooling unit StarCooler (code ACEC) are factory-assembled compact units that are tested and documented at the factory. Commissioning of the unit must be carried out by competent personnel accor-...

  • Page 18: Maintenance Instructions

    Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 18 6 Maintenance instructions 6.1 Service schedule The service schedule comprises actions and service intervals for functional sections that can be part of the air handling unit. The unit consists of one or more of these functional sections. The relevant parts are shown in the order document Technical Data.
  • Page 19 Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 19 Cooling unit Service year 20 for unit no. Service performed * (date and signature) .......... Recommended action Page Functional section Code 12 mths 24 mths 36 mths 48 mths (insp.) ref.

  • Page 20: Filter (Code Acef)

    Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 20 6.2 Filter (code ACEF) Filter The air filters in an air handling unit are designed to prevent dust and other impurities from entering the building. They should also protect sensitive com- ponents inside the unit, e.g. water coils and heat exchangers, from exposure to impurities.
  • Page 21 Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 21 For the Home Concept version (code ACET-08) The filter cabinet is an optional extra for the Home Concept version and can be used for • aluminium filter on the extract air side •...
  • Page 22 Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 22 Preset FLC values, as per the table below, are based on max. air flow over 12 months of full-time operation. If required, the value can be lowered in order to: - change to more frequent filter replacement intervals for max. air flow - retain the filter replacement interval of 12 months for lower air flows.
  • Page 23 Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 23 Filter replacement 1. Shut down the unit via the service switch in the control equipment, safety switch in the 0 position. The safety switch is not designed for starting/stopping the unit. Always use the service switch in the control equipment to start and shut down the unit.

  • Page 24: Rotary Heat Exchanger (Code Acrr)

    Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 24 6.3 Rotary heat exchanger (code ACRR) Rotary heat exchanger The purpose of the recovery unit is to recover heat from the extract air and transfer this heat to the supply air in order to minimise energy use.
  • Page 25 Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 25 2. Wait until the fans have stopped, then open the inspection door. WARNING! Positive pressure inside the unit, risk of personal injury. Allow the pressure to drop before you open the inspection doors.
  • Page 26 Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 26 For the standard version: To ensure correct function of the purging sector, the negative pressure at P3 should be greater than the negative pressure at P2 (min. diff. 25 Pa). Otherwise an ETET-TR trim damper can be used on the extract air side in order to throttle in the correct pressure balance.
  • Page 27 Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 27 - Read the recommended setting (adjustment hole in the purging sector) from the table below. Adjustment hole in the purging sector Rotor vari- intermediate posi- open* tion closed NO, NE, Diff. pressure <...

  • Page 28: Air Heater Water (Ecet-Vv) And Thermoguard (Ecet-Tv)

    Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 28 6.4 Air heater water (ECET-VV) and Thermoguard (ECET-TV) Air heater water (code ECET-VV) and Thermoguard air heater water (code ECET-TV) The heating coil consists of a number of copper tubes with aluminium fins press- sed on them.
  • Page 29 Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 29 Additional maintenance for Thermoguard (code ECET-TV) 1. The ThermoGuard coil must be fitted with a safety valve, the function of which should be checked regularly (at least once a year). If you see that the valve is leaking, this is normally due to impurities from the pipe system that have accumulated on the valve seat.

  • Page 30: Air Heater Electric (Code Ecet-Ev)

    Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 30 6.5 Air heater electric (code ECET-EV) Air heater electric (code ECET-EV) The heating coil consists of “unsheathed” electric heating rods. A substantial accumulation of dust or other impurities on the heating rods will cause them to overheat.

  • Page 31: Air Cooler Water (Code Ecet-Vk) And Air Cooler For Direct Expansion (Code Ecet-Dx)

    Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 31 6.6 Air cooler water (code ECET-VK) and Air cooler for direct expansion (code ECET-DX) Air cooler water (code ESET-VK) Air cooler for direct expansion (code ECET-DX) The cooling coil consists of a number of copper tubes with aluminium fins press- sed onto them.

  • Page 32: Fan Unit

    Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 32 6.7 Fan unit The purpose of the fans is to transport air through the system, i.e. the fan must overcome the flow resistance in air terminals, air ducts and the unit. The fan speed is regulated to provide correct air flow. If the fans generate a lo- wer air flow, this will impair the function of the ventilation system.
  • Page 33 Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 33 Inspection Example fan unit size 04-06 Example fan unit size 10-16 1. Screws suspension 1. Screws side cover 2. Connection plate 2. Pins 3. Inlet cone 3. Anti-vibration mounting 4. Anti-vibration mounting 4.
  • Page 34 Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 34 5. For size 10-16: Fan impeller (pos 5) and motor (pos 4) are mounted on a frame equipped with anti-vibration mountings. Check that the anti-vibration mountings (position 3) are intact and are firmly fitted.

  • Page 35: Damper (Code Ecet-Um, Ecet-Tr)

    Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 35 6.8 Damper (code ECET-UM, ECET-TR) Size 04 Sizes 06,10 and 16 The purpose of the dampers is to regulate the air flow. Faulty function gives rise to disturbances that may result in serious problems.

  • Page 36: Sound Attenuator (Code Ecet-Ld)

    Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 36 6.9 Sound attenuator (code ECET-LD) Size 04 Sizes 06, 10 and 16 The function of the sound attenuator is to reduce the sound level in the system. Inspection Check that the baffle elements are intact and have clean surfaces. Take action if necessary.

  • Page 37: Starcooler Cooling Unit (Code Acec)

    Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 37 6.10 StarCooler cooling unit (code ACEC) General The cooling unit has been designed and fabricated along given operation para- meters that must be met in order for the unit to operate optimally and provide good operating economy.

  • Page 38: Troubleshooting

    Operation and Maintenance Envistar Compact DSEC191101.01.EN Page 38 7 Troubleshooting 7.1 StarCooler cooling unit (code ACEC) Troubleshooting via symptoms Symptom Possible cause Corrective action Low cooling power – too The power supply has been interrupted Check the control/safety switches and...
  • Page 39 You are welcome to contact us Switchboard: +46 (0)47 075 88 00 Control support: +46 (0)47 075 89 00 styr@ivprodukt.se Service: +46 (0)47 075 89 99 service@ivprodukt.se Spare parts: +46 (0)47 075 88 00 spareparts@ivprodukt.com Visit us at: www.ivprodukt.com Documentation for your unit: docs.ivprodukt.com Technical documentation: docs@ivprodukt.se...

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