IV Produkt Envistar Top Series Operation And Maintenance
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IV Produkt Envistar Top Series Operation And Maintenance

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Operation and Maintenance
Envistar Top
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Summary of Contents for IV Produkt Envistar Top Series

  • Page 1 Operation and Maintenance Envistar Top Order number: Project:...
  • Page 2 Translation of the original instructions...
  • Page 3 Unit specifications Unit type Size 04  06  09  10    12  16  21    1V  2V  Control equipment   Home Concept model     Unit parts and accessories ...

  • 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/Revresible heat pump ..................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 Operation 5.1 Hygiene inspection ........................5.2 Actions in case of standstill ....................5.3 Commissioning ..........................5.4 Cooling Status – Cooling unit (code TEC), size 04 ..........5.5 Cooling Status – Cooling unit (code TEC), size 06-12 .........

  • Page 6: Safety Precautions

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 6 1 Safety precautions Observe warning labels on the unit as well as the following safety precautions: 1.1 Lockable safety switch WARNING! High voltage, 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 7: General

    Page 7 2 General 2.1 Intended use The air handling units in the Envistar Top series are intended for comfort ventila- tion in buildings. The air handling unit, in its standard design, must be installed in an area that maintains a temperature between +7 to +30°C and during the winter a moisture content <3.5 g/kg in the fan room.

  • Page 8: Ce Marking And Eu Declaration Of Conformity

    CO Refrigerant charge Circuit 3 ton CO Contains fluorinated greenhouse gases covered by the Kyotot protocol. IV Produkt AB 0409 VÄXJÖ, SWEDEN Typical CE label for cooling units For units without integrated control equipment The EC declaration applies only to units in the condition in which they have been delivered and installed at the facility in accordance with the enclosed installation instructions.

  • Page 9: Handling Of Refrigerant

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 9 2.6 Handling of refrigerant The following information summarises the requirements and guidelines for han- dling the refrigerant used in cooling units. For further information, see the F-gas Regulation (EU/517/2014 on fluorinated greenhouse gases) and the Swedish Refrigerant Regulation (SFS 2016:1128).

  • 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 09 with supplement VU13, the IV Produkt Service and Warranty Manual is supplied with the product.

  • Page 11: Technical Description

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 11 3 Technical description 3.1 Envistar Top air handling unit Envistar Top with counter-flow exchanger (code Envistar Top with rotary heat exchanger (code TER) TEM) Envistar Top is manufactured as a compact unit or modularly, depending on the size and version selected.

  • Page 12: Ecocooler Cooling Unit (Code Tec)

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 12 3.3 EcoCooler cooling unit (code TEC) Envistar Top with EcoCooler (code TEC) size 10 The integrated cooling unit with EcoCooler (code TEC) cooling recovery is available as an optional extra to an Envistar Top unit with a rotary heat exchanger.
  • Page 13 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 13 Cooling function For integrated control equipment (MX), the cooling unit is interlocked across the ventilation unit. If any of the fans stop, the cooling unit will also stop. The interlock and demand signal is sent via Modbus. For external control equipment (US, UC, MK), the interlock signal must be sent via a potential-free relay.
  • Page 14 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 14 Cooling circuit function From the compressor, the refrigerant is compressed as hot gas to the condenser, where heat is emit- ted. The refrigerant condenses from gas to liquid when it is cooled by the extract air. The refrigerant passes the pressure reducing expansion valve and undergoes a phase transformation in the evaporator from liquid to gas (the refrigerant evaporates).

  • Page 15: Reversible Heat Pump Thermocooler Hp (Code Ttc)

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 15 3.4 Reversible heat pump ThermoCooler HP (code TTC) Envistar Top with ThermoCooler HP (code TTC) size 10 Envistar Top with ThermoCooler HP (code TTC) Size 12 The integrated reversible heat pump ThermoCooler HP (code TTC) is available as an optional extra to an Envistar Top unit with a rotary heat exchanger.
  • Page 16 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 16 Cooling circuit function Cooling mode From the compressor (1), the refrigerant is pushed as hot gas to the condenser (the extract air coil) where the heat is emitted. The refrigerant condenses from gas to liquid when it is cooled by the extract air.
  • Page 17 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 17 The extract air is the heat pump’s energy source. When the extract air meets the extract air coil, it is cooled since the coil functions as an evaporator. From the evaporator, the refrigerant moves to the compressor, where it is compressed. The refrigerant then moves to the supply air coil, where the energy from the extract air and the compressor is released.

  • Page 18: Wiring Instructions And Fuse Protection

    For recommended fuses, refer to Order Unique Documentation at docs.ivprodukt.com (Technical Data and Control Diagram), or the product program IV Produkt Designer. • The unit has a shared power supply for all unit functions as standard, but can be ordered with separate power supplies on special order.

  • Page 19: Mk - Fans And Heat Exchangers Electrically Connected To Terminal

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 19 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. Connections to terminal blocks are located on each unit section. For wiring instructions and recommended fuses, refer to Order Unique Docu- mentation at docs.ivprodukt.com...
  • Page 20 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 20 Ziehl EC 3×400 V 2.40 / 2.90 kW fan Air Heater electric (Code ETAB-EV*, ETKB- impeller 040 / 045 EV**) For power supply, output variant and recommended Sizes 16 and 21 fuse, refer to Order Unique Documentation at docs.ivprodukt.com (Technical Data).

  • Page 21: Operation

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 21 5 Operation 5.1 Hygiene inspection Envistar Top conforms to guidelines in VDI 6022 Part 1: Hygiene and Hygiene 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 22: 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 23: Cooling Status - Cooling Unit (Code Tec), Size 04

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 23 5.4 Cooling Status – Cooling unit (code TEC), size 04 With control equipment (code MX). Status information is read on the Climatix display. Information Value/example Explanation Cooling unit status Unit ON Normal status for cooling mode if the compressor is running depends on the cooling load.
  • Page 24 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 24 Without control equipment (code UC, MK or US) Status information is read on the Carel display (Main menu/Status - I/O). Information Value/example Explanation Status U6 = Cool.demand: Cooling load from ventilation control Remove start delay: No / Yes Opportunity to quick start the compressor if Yes is set.
  • Page 25 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 25 Status Value/example Explanation Cooling load, Output signal, Speed High pressure Condensation temperature Status Hot gas temperature Suction gas temperature Low pressure Evaporating temperature Status Status Off/Run/Alarm/Heat Current 4.3 Arms Compressor’s power consumption Voltage 124 Vrms Power to compressor...

  • Page 26: Cooling Status - Cooling Unit (Code Tec), Size 06-12

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 26 5.5 Cooling Status – Cooling unit (code TEC), size 06-12 With control equipment (code MX). Status information is read on the Climatix display. Information Value/example Explanation Danfoss-VSD Danfoss Variable Speed Drive High pressure 25 bar Relative pressure from high pressure sensor.
  • Page 27 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 27 Without control equipment (code UC, MK, US) Status information is read on the Carel display (Main menu/Status - I/O). Information Value/example Explanation Status Compressor: Off 60.0 Hz Compressor frequency. Drive status: Compressor Off Status of compressor.

  • Page 28: Cooling Status - Cooling Unit, Size (Code Tec) 16-21

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 28 5.6 Cooling Status – Cooling unit, size (code TEC) 16-21 With control equipment (code MX). Status information is read on the Climatix display. Information Value/example Explanation Cooling unit status Unit ON Normal status for cooling mode if the compressor is running depends on the cooling load.
  • Page 29 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 29 Without control equipment (code UC, MK, US) Status information is read on the Carel display (Main menu/Status - I/O). Information Value/example Explanation Status B1 = Cool.demand: Cooling load from ventilation control B2 = Heat demand Heating requirement Remove start delay:...

  • Page 30: Cooling Status - Reversible Heat Pump (Code Ttc)

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 30 5.7 Cooling Status - reversible heat pump (code TTC) With control equipment (code MX). Status information is read on the Climatix display. Information Value/example Explanation Cooling unit status UnitOn Normal status for cooling mode if the compressor is running depends on the cooling load.
  • Page 31 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 31 Information Value/example Explanation Freq. inv. output x.x% Shows how much of the full capacity is used by the compressor. Compr. no Comp1 No. of compressors Compr. Sum alarm Normal Display of sum alarm. Danfoss invert.

  • Page 32: Maintenance Instructions

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 32 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 relevant parts are shown in the order document Technical Data. Make copies of the service schedule for future use before you fill in servicing data for the first time.
  • Page 33 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 33 Cooling unit (code TEC) Service year 20 for unit no. Service performed * (date and signature) .......... Recommended action Page 5000 h / 10,000 h / 15,000 h / 20,000 h / Functional section Code...

  • Page 34: Filters (Code Elef)

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 34 6.2 Filters (code ELEF) 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 components inside the unit, e.g. water coils and heat exchangers, from exposure to impurities.
  • Page 35 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 35 filter replacement intervals for max. air flow - retain the filter replacement interval of 12 months for lower air flows. To change the value, refer separate Climatix control documentation. Inspection – –...
  • Page 36 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 36 Filter data For filter data, refer to Filter Overview under Documentation at ivprodukt.docfactory.com. Actual filters are shown in Technical data (see the page Material specification) and Spare part list under order unique documentation at docs.ivprodukt.com.

  • Page 37: Rotary Heat Exchanger (Code Txrr)

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 37 6.3 Rotary heat exchanger (code TXRR) 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 38 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 38 8. Check the pressure balance: For design Home Concept, the trim damper ETSP-UM/TR regulates the pressure balance automatically against the set value in the controller unit. Check that the measured pressure balance between measurement tappings P2 and P3 corresponds to the set pressure balance setpoint in the controller unit (-10 Pa).
  • Page 39 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 39 For units (code TER/TXR), the purging sector function must be ensured by checking that the under pressure P3 is greater than the pressure P2 (min. diff 25 Pa). Otherwise an ETSP-TR trim damper can be used on the extract air side in order to throttle in the correct pressure balance.
  • Page 40 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 40 9. Check the differential pressure across the rotor. The purging sector is factory-installed, set to the maximum open position. Depending on the unit’s pressure difference across the rotor, the purging sector may need adjustment.
  • Page 41 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 41 Cleaning • Remove dust by carefully vacuum cleaning using a soft brush. • In the event of stubborn and heavy-duty dirt, the rotor can be sprayed with a mild, alkaline detergent. •...

  • Page 42: Counter-Flow Exchanger (Code Txmm)

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 42 6.4 Counter-flow exchanger (code TXMM) The purpose of the counter-flow exchanger is to recover heat from the extract air and transfer this heat to the supply air in order to minimise energy use. Faults in counter-flow exchanger functionality reduce recovery efficiency and increase energy consumption.
  • Page 43 During full heat recovery and when the unit is switched off, the dampers should be fully open (bypass damper closed). The frosting and bypass functions are preset at the factory and any adjustments may only be performed by IV Produkt. Continuous product development may give rise to specification changes without notice.

  • Page 44: Air Heater Water (Code Etab-Vv) And Thermoguard (Etab-Tv)

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 44 6.5 Air heater water (code ETAB-VV) and Thermoguard (ETAB-TV) Air heater water The heating coil consists of a number of copper tubes with aluminium fins pressed on them. The coil will have impaired capacity if dust forms a coating on the coil surfaces.
  • Page 45 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 45 Additional maintenance for ThermoGuard 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 46: Air Heater Electric (Code Etab-Ev, Etkb-Ev, Etab-Sv)

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 46 6.6 Air Heater electric (Code ETAB-EV, ETKB-EV, ETAB-SV) • ETAB-EV for unit assembly • ETAB-SV for unit assembly reversible heat pump • ETKB-EV for duct mounting Air heater electric (ETAB-EV, ETAB-SV) Air heater electric size 04-12 (ETKB-EV) The heating coil consists of “unsheathed”...

  • Page 47: Air Cooler Water (Code Etkb-Vk)

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 47 6.7 Air cooler water (code ETKB-VK) Air cooler water The cooling coil consists of a number of copper tubes with aluminium fins pressed onto them. The coil will have impaired capacity if dust forms a coating on the coil surfaces.

  • Page 48: Fan Unit (Code Elff)

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 48 6.8 Fan unit (code ELFF) 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.
  • Page 49 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 49 Inspection Example fan unit size 04-06 Example fan unit size 09-21 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 50 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 50 6. For size 04-06: Make sure the edge cover (pos 8) on the fan support upper (pos 9) sits firmly. 7. Check the mounting bolts, screws as well as the suspension devices and support.

  • Page 51: Damper (Code Etsp-Um, Etsp-Tr, Etrl)

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 51 6.9 Damper (code ETSP-UM, ETSP-TR, ETRL) • ETSP-UM Shut-off damper, rotary heat exchanger and counter-flow exchanger • ETSP-TR Commissioning damper, rotary heat exchanger • ETRL Return air damper, rotary heat exchanger Damper TER-04 (ETSP-UM, ETSP-TR) Damper size 04-21 (ETSP-UM, ETSP-TR, ETRL) The purpose of the dampers is to regulate the air flow.

  • Page 52: Sound Attenuator (Code Etld)

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 52 6.10 Sound attenuator (code ETLD) Sound attenuator TER-04 Sound attenuator size 04-21 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 53: Cooling Unit (Code Tec) And Reversible Heat Pump (Code Ttc)

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 53 6.11 Cooling unit (code TEC) and reversible heat pump (code TTC) General The operation parameters for the unit must not be changed unless a check is first made to ascertain that the changes will be within the unit’s operating range. Leakage inspection and registration For information on the operator’s responsibility with regards to leakage inspec- tion and registration, see "2.6 Handling of refrigerant"...

  • Page 54: Alarm Management And Troubleshooting

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 54 7 Alarm management and troubleshooting For units with control equipment (code MX), alarm information can be read on the Climatix display. For units without control equipment (code UC, MK, US), alarm information can be read on the Carel display.
  • Page 55 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 55 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 No or too low air flow across evaporator.

  • Page 56: Cooling Unit (Code Tec) - Size 06-12

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 56 7.2 Cooling unit (code TEC) - size 06-12 Troubleshooting via symptoms Symptom Possible cause Corrective action The high pressure switch No or too low air flow across the Check the air flow across the condenser. has tripped condenser The high pressure switch may have tripped...
  • Page 57 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 57 Alarm information for inverter and compressor Alarm Climatix (code Alarm Carel (code UC, MK, Explanation and corrective action Peripherals AL P02 Compressor Drive: Communication error with the electronic expansion valve. PERIPHERALS_ERROR Compressor runs at limited speed.
  • Page 58 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 58 MOC safety AL D06 Compressor Drive: Motor Orientated Control has detected an error. The inverter is stopped. MOC_SAFETY Errors must be remedied and alarms reset. The alarm may be the result of a tripped high pressure switch (the inverter loses all power).
  • Page 59 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 59 High pressure switch alarm If the high pressure switch has tripped, “Cooling unit alarm: Alarm” is displayed. Since the inverter loses all power when the high pressure switch is tripped, a communication error alarm is also displayed, “Com.Modbus alarm Danfoss: Alarm”.

  • Page 60: Reversible Heat Pump (Code Ttc)

    Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 60 7.3 Reversible heat pump (code TTC) Alarm troubleshooting Inspection Possible cause Corrective action YES ⇒ No or too low air flow across the Has the high pressure Check the air flow across the switch tripped? condenser condenser.
  • Page 61 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 61 Alarm information for inverter and compressor Alarm Climatix Explanation and corrective action Sum alarm Sum alarm, check alarm in Carel, see table below. Alarm C1 R. pressure switch High pressure switch tripped or alarm for frequency inverter. Alarm C1 EEV motor fault Fault on electrical connection to expansion valve.
  • Page 62 Operation and Maintenance Envistar Top 04-21 DSET.190501.01.EN Page 62 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 Separate supply not connected Connect supply None or too low air flow across evapora-...
  • Page 64 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) 470 75 88 00 order@ivprodukt.se Visit us at: www.ivprodukt.com Documentation for your unit: docs.ivprodukt.com...

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