IV Produkt Envistar Compact Series Operation And Maintenance Manual
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IV Produkt Envistar Compact Series Operation And Maintenance Manual

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Operation and maintenance
Envistar
Compact
®
Air Handling Unit
Envistar Compact and Home Concept FTX Compact 04-16
Order number :
Project
:
Translation of the original instructions

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Summary of Contents for IV Produkt Envistar Compact Series

  • Page 1 Operation and maintenance Envistar Compact ® Air Handling Unit Envistar Compact and Home Concept FTX Compact 04-16 Order number : Project Translation of the original instructions...
  • Page 3 Unit specifications Unit type Size ACER   ACEC Output var. 1  2  3    Home Concept model   Control equipment Filter, supply air ePM10-65% (M5)   ePM1-50% (F7)   Black Ridge BR ...

  • Page 4: Table Of Contents

    Table of Contents Safety precautions ..........................1.1 Lockable safety switch ......................1.2 Inspection doors ..........................1.3 Electrical connection ........................1.4 Cooling unit ............................General ................................2.1 Intended use ............................. 2.2 Manufacturer ............................. 2.3 Designations ............................. 2.4 CE marking and EU Declaration of Conformity ............
  • Page 5 Table of Contents, cntd Wiring instructions and fuse protection ................5.1 MX – Complete control equipment and UC – Complete electrical connection to terminal (without DUC).... 5.2 MK – Fans and heat exchangers electrically connected to terminal ..5.3 HS, US - Without control and without electrical connection ......

  • Page 6: Safety Precautions

    Rotating fan impeller, risk of personal injury. The unit must not be energised until all ducts have been connected. Wiring of connections and other electrical work may only be carried out by a qualified electrician or by service personnel recommended by IV Produkt. 1.4 Cooling unit WARNING! Hot surfaces, risk of personal injury.

  • Page 7: General

    Envistar Compact DSEC181201.00.EN Page 3 2 General 2.1 Intended use The air handling units in the Envistar Compact series are intended for comfort ventilation in buildings. 2.2 Manufacturer The Envistar air handling units (AHUs) are manufactured by: IV Produkt AB Sjöuddevägen 7...

  • Page 8: Ce Marking And Eu Declaration Of Conformity

    Order Unique Documentation at docs.ivprodukt.com. The CE marking applies to units that IV Produkt AB manufactures and supplies in the form of a unit without additional control equipment. For the CE marking of IV products to apply, the applicable requirements of the EU Machinery Directive 2006/42/EC and related directives for control equipment shall be met when installed for the unit.

  • Page 9: Maintenance

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 5 2.5 Maintenance Continuous maintenance of this unit can be carried out either by the person normally in charge of maintaining the building or through a contract with a well- reputed service company. 2.6 Handling of refrigerant The following information summarises the requirements and guidelines for han- dling the refrigerant used in cooling units.

  • Page 10: 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 11: Technical Description

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 7 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.

  • Page 12: Function

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 8 4 Function 4.1 Cooling circuit From the compressor (position 1) the refrigerant is pressed as hot gas to the condenser (position 2) where heat is emitted. The refrigerant condenses from gas to liquid when it is cooled by the extract air. The refrigerant passes the pressure reducing expansion valve (position 7) and undergoes a phase transformation in the evaporator (position 8) from liquid to gas (the refrigerant evaporates).

  • Page 13: Controlling The Starcooler Cooling Unit (Code Acec)

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 9 4.2 Controlling the 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 14: Wiring Instructions And Fuse Protection

    Unique Documentation at docs.ivprodukt.com (Technical Data and Control Diagram), or the product program IV Produkt Designer. 5.2 MK – Fans and heat exchangers electrically connected to terminal For units supplied without control equipment but with fans and heat exchangers connected electrically to terminals (code MK).

  • Page 15: Hs, Us - Without Control And Without Electrical Connection

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 11 5.3 HS, US - Without control and without electrical connection • For units without control equipment and without electrical connection (code HS), a control diagram is available for the cooling unit (code ACEC) at docs.ivprodukt.com, for other connection instructions, see below.

  • Page 16: Operation

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 12 6 Operation 6.1 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

    The validity of the product warranty is conditional on the system having been correctly commissioned. Working on the cooling unit during the warranty period without the approval of IV Produkt shall render the warranty void. Prior to commissioning, the contractor must:...

  • Page 18: Maintenance Instructions

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 14 7 Maintenance instructions 7.1 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 sec- tions are marked on the list in the table of contents.
  • Page 19 Operation and maintenance Envistar Compact DSEC181201.00.EN Page 15 Cooling unit For units equipped with cooling units. Service year 20 for unit no. Service performed * (date and signature) .......... Recommended action Page 3000 h / 6000 h / 9000 h / 12,000 h / Functional section...

  • Page 20: Filter (Code Acef)

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 16 7.2 Filter (code ACEF) The air filters in an air handling unit are designed to pre- vent dust and other impurities from entering the building. They should also protect sensitive components inside the unit, e.g.
  • Page 21 Operation and maintenance Envistar Compact DSEC181201.00.EN Page 17 The carbon filter can be used to remove odours in the form of organic and odor- ous gases/vapours. The carbon filters are fitted to the supply air side. The car- bon filters are Black Ridge filters, constructed as compact and highly efficient, molecular filters.
  • Page 22 Operation and maintenance Envistar Compact DSEC181201.00.EN Page 18 Filter data For filter data, refer to Filter Overview under Documentation at ivprodukt.docfactory.com. Actual filters are shown in the unit specification in this document and under Order Unique Documentation at docs.ivprodukt.com (Technical Data and Spare Parts List). Inspection Check the pressure drops across the filters (not carbon filter Black Ridge in Home Concept version).
  • Page 23 Operation and maintenance Envistar Compact DSEC181201.00.EN Page 19 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 DSEC181201.00.EN Page 20 7.3 Rotary heat exchanger (code ACRR) 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. Faults in heat exchanger functionality result in reduced heat recovery efficiency and increased energy use and means that the design supply air temperature cannot be obtained...
  • Page 25 Operation and maintenance Envistar Compact DSEC181201.00.EN Page 21 8. Check the pressure balance (not applicable to the Home Concept 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). Other- wise an ETET-TR trim damper can be used on the extract air side in order to throttle in the correct pressure balance.
  • Page 26 Operation and maintenance Envistar Compact DSEC181201.00.EN Page 22 Adjustment hole in the purging sector Rotor vari- open* closed Diff. pressure Normal < 200 200 – 400 400–600 > 600 between P1 and Plus < 300 300–500 500–700 > 700 – P3 (Pa) *maximum open purge sector, preset position from the factory- Adjust the purging sector if the need arises.

  • Page 27: Air Heater Water (Ecet-Vv) And Thermoguard (Ecet-Tv)

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 23 7.4 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 pressed on them.
  • Page 28 Operation and maintenance Envistar Compact DSEC181201.00.EN Page 24 Additional maintenance for Thermoguard (code ECET-TV) 1. Regularly check safety valve function (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 29: Air Heater Electric (Code Ecet-Ev)

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 25 7.5 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 30: Air Cooler Water (Code Eset-Vk)

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 26 7.6 Air cooler water (code ESET-VK) Air cooler for direct expansion (code ECET-DX) Air cooler water (code ECET-VK) and Air cooler for direct expansion (code ECET-DX) The cooling coil consists of a number of copper tubes with aluminium fins pressed onto them.

  • Page 31: Fan Unit

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 27 7.7 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 low- er air flow, this will impair the function of the ventilation system.
  • Page 32 Operation and maintenance Envistar Compact DSEC181201.00.EN Page 28 Fan - sizes 04 and 06 Inspection 1. Connection plate 2. Screws (suspension) 3. Anti-vibration mounting 4. Anti-vibration support 5. Fan impeller with motor 6. Inlet cone 7. Fan support, upper 8. Fan support, lower 9.
  • Page 33 Operation and maintenance Envistar Compact DSEC181201.00.EN Page 29 9. Reinstall the fan unit by hooking in on the key holes in the anti-vibration sup- ports (position 4), both upper and lower, and secure the screws (position 2) in the connection plate (position 1) 10.
  • Page 34 Operation and maintenance Envistar Compact DSEC181201.00.EN Page 30 Fan - sizes 10 and 16 Inspection 1. Screws, fan unit 2. Pins 3. Anti-vibration mounting 4. Motor 5. Fan impeller Fan unit, sizes 10 and 16 1. Remove one end of the fan assembly’s earth braid. Remove the screws (position 1) and the pins (position 2).
  • Page 35 Operation and maintenance Envistar Compact DSEC181201.00.EN Page 31 Cleaning 1. Follow items 1-7 under Inspection. 2. Wipe the fan impeller blades to remove any coatings. Use a mild, alkaline detergent. 3. The external surfaces of the motor must be kept clean from dust, dirt and oil.

  • Page 36: Damper (Code Ecet-Um, Ecet-Tr)

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 32 7.8 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. Trim damper for rotor purging operation •...

  • Page 37: Sound Attenuator (Code Ecet-Ld)

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 33 7.9 Sound attenuator (code ECET-LD) Size 04 Sizes 06, 10 and 16 The purpose of the sound attenuator is to reduce the sound power level in the system. Inspection Check that the baffle elements are intact and have clean surfaces. Take action if necessary.

  • Page 38: Starcooler Cooling Unit (Code Acec)

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 34 7.10 StarCooler cooling unit (code ACEC) General The cooling unit has been designed and fabricated along given operation pa- rameters that must be met in order for the unit to operate optimally and provide good operating economy.

  • Page 39: Troubleshooting

    Operation and maintenance Envistar Compact DSEC181201.00.EN Page 35 8 Troubleshooting 8.1 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 high temperature in the fuses cooled object/medium...
  • Page 40 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 order@ivprodukt.se Visit our website: www.ivprodukt.com Documentation for your unit: docs.ivprodukt.com Technical documentation:...

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