Unit specifications Unit type Size TEXM 04 06 09 TEXR 12 TEC-R TEC-M TECX Control equipment TECO TTCH Home Concept Configuration Unit parts and accessories Rotary heat exchanger TXRR Filter supply air Counter-flow exchanger TXMM ePM10-60% / M5 ePM1-50% / F7 Air heater water ETAB-VV ePM1-60% / F7 Output var...
Table of Contents Security 1.1 Intended use ..............................1.2 Unintended uses ............................1.3 Manufacturer ..............................1.4 General safety .............................. 1.5 General safety notices ........................... 1.6 General safety messages ........................1.7 Signs on the unit ............................1.8 CE marking ..............................1.9 Maintenance ..............................
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Table of Contents, cnt’d Maintenance instructions 6.1 Service schedule ............................. 6.2 Filters (code ELEF) ..........................6.3 Rotary heat exchanger (code TXRR) ..................6.4 Counter-flow exchanger (code TXMM) ................. 6.5 Air heater water (code ETAB-VV, SKB-VV) and Thermoguard (code ETAB-TV) ....................... 6.6 Air Heater electric (Code ETAB-EV, ETKB-EV, ETAB-SV) ..........
The unit can also be equipped for outdoor installation. 1.2 Unintended uses Any use other than specified in the Intended Use section is prohibited unless specifically permitted by IV Produkt. It is not permitted to use the unit in potenti- ally explosive environments. 1.3 Manufacturer The Air Handling Unit is manufactured by IV Produkt AB, Sjöuddevägen 7, S-350...
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 2 Personal Protective Equipment (PPE) Personal protective equipment must always be used based on the risks present in the workplace. For example, wear protective footwear with steel toecaps, hea- ring protection, safety helmet, gloves, safety eyewear or goggles, fully-covering clothing, safety overalls, face mask/protective mask and/or fall protection where the work and work environment require it.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 3 BE CAREFUL! 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. Electrical connections WARNING! Risk of serious injury.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 4 Cooling unit/Reversible heat pump WARNING! Risk of personal injury. Hot surfaces can cause burns. Working on/servicing the unit – Shut down the unit via the service switch in the control equipment, then turn the safety switch to the 0 position and lock it.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 5 Heating coil WARNING! Risk of personal injury. Hot surfaces can cause burns. Working on/servicing the unit – Shut down the unit via the service switch in the control equipment, then turn the safety switch to the 0 position and lock it.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 6 Damper WARNING! Risk of personal injury. Moving parts can cause crushing injuries. Never place your hands inside the damper when it closes. Working on/servicing the unit – Shut down the unit via the service switch in the control equipment, then turn the safety switch to the 0 position and lock it.
In cases in which the equipment delivered is covered by a 5-year warranty, in accordance with ABM 07 with appendix ABM-V 07 or in accordance with NL 17 with appendix VU20, the IV Produkt Service and Warranty Manual is supplied with the product.
Spare parts list can be found in the Order Portal. Order spare parts and accessories from IV Produkt. See contact details on the last page of the manual. When contacting a department, state the order number and unit designation as shown on the type plate located on the unit.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 10 3 Handling of refrigerant The following information summarises the requirements and guidelines for handling the refrigerant used in cooling units/reversible heat pumps. For further information, see the F-gas Regulations and the National Refrigerant Handling Regulations.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 11 TEC-M Leakage control Register admi- nistration Size Refrigerant Assembly leak Every 12 months In case of con- detection trol/intervention R410A R410A R454B R410A R454B R410A R454B R410A Yes¹⁾ R454B Applicable in Sweden.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 12 TECX/TECO Leakage control Register admi- nistration Size Refrigerant Assembly leak Every 12 months In case of con- detection trol/intervention R410A Yes¹⁾ ³⁾ - / Yes³⁾ R454B R410A R454B R410A²⁾ R454B Applicable in Sweden.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 13 4 Technical description 4.1 Configuration of the unit Envistar Top is manufactured as a compact unit or modularly, depending on the size and configuration selected. The compact unit is supplied complete preassembled from the factory.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 14 4.4 Cooling unit EcoCooler (code TEC-R, TEC-M, TECO, TECX) The integrated cooling unit with EcoCooler cooling recovery is available as an optional extra to an Envistar Top unit with a rotary heat exchanger or counter- flow exchanger.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 15 Circuit board The circuit board in the cooling unit is internally prewired and tested at the fac- tory. The circuit board contains: For size 04 • Compressor inverter Control centre with integrated expansion valve control unit For size 06-12 •...
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 16 00024 Example of flowchart for refrigerant system size 04-12 Compressor Hot gas sensor Condenser Extract air fan High-pressure switch Pressure sensor - high pressure Measurement outlet – high pressure Drying filter...
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 17 00277 Example of flowchart for refrigerant system size 17-28 Compressor Condenser Extract air fan Pressure sensor – high pressure (applies to code TECO/TECX size 17/22/28) High-pressure switch Measuring socket – high pressure...
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 18 4.5 Reversible heat pump ThermoCooler HP (code TTC, TTCH) The integrated reversible heat pump ThermoCooler HP is available as an optional extra to an Envistar Top unit with a rotary heat exchanger. The units are intended to be used to cool or heat supply air in properties.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 19 Cooling mode 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.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 20 Circuit board The circuit board for the unit contains: • Fuses • Control unit The circuit board is installed inside the unit and is internally prewired and tested at the factory.
Page 21 5 Commissioning and operation Commissioning of the unit must be carried out by qualified personnel in accor- dance with documentation from IV Produkt. Documents for commissioning: • Commissioning record (for units supplied with MX control equipment) • Control diagrams •...
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 22 5.2 Starting and stopping the unit WARNING! Risk of serious personal injury and/or damage to air handling unit. Read and understand the entire chapter "1 Security" before working on, servicing, or inspecting the air handling unit.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 23 5.4 Additional wiring instructions For general connection and fuse protection, see Wiring Instructions (separate manual). For wiring specifications for fans, see Technical data. The documents can be found on docs.ivprodukt.com - enter your order number.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 24 5.5 Operating parameters, cooling Cooling unit size 04 (code TEC-R, TEC-M). With control equipment (code MX) Status information is read on the Climatix display. Information Value/example Explanation Cooling unit status Unit ON...
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 25 Cooling unit size 04 (code TEC-R, TEC-M). 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:...
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 26 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...
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 27 Cooling unit (size 06-12 code TEC-R) / (size 06, 10 code TEC-M). With control equipment (code MX) - without Carel Status information is read on the Climatix display. Information Value/example Explanation...
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 28 Cooling unit (size 06-12 code TEC-R) / (size 06-12 code TEC-M) / (size 17-28 code TECO, TECX). With control equipment (code MX) - with Carel Status information is read on the Climatix display.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 29 Cooling unit (size 06-12 code TEC-R) / (size 06, 10 code TEC-M) / (size 17-28 code TECO, TECX). Without control equipment (code UC, MK, US) Status information is read on the Carel display (Main menu/Status - I/O).
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 30 Cooling unit size 17-22 (code TEC). 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.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 31 Cooling unit size 17-22 (code TEC). 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:...
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 32 Reversible heat pump (code TTC, TTCH). 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.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 33 Information Value/example Explanation Compr. no Comp1 No. of compressors Compr. Sum alarm Normal Display of sum alarm. Danfoss invert. Sa Sum alarm from the frequency inverter alarm for the compressor. Alarms >...
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 34 Cooling unit (size 06-12 code TEC-R) / (size 06-12 code TEC-M) / (size 17-28 code TECO, TECX). Reversible heat pump (code TTC, TTCH). With control equipment (code MX) - with Carel - with detector system Status information is read on the Climatix display.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 35 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. For current parts, refer to docs.ivprodukt.com...
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 36 Cooling unit (code TEC-R / TEC-M / TECO / TECX) Service year 20 Order no. Project name ................Comments Service performed * (date and signature) ................Recommended action Page...
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 37 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 com- ponents inside the unit, e.g. water coils and heat exchangers, from exposure to impurities.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 38 Inspection WARNING! Risk of serious personal injury and/or damage to air handling unit. Read and understand the entire chapter "1 Security" before working on, servicing, or inspecting the air handling unit.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 39 Filter replacement WARNING! Risk of serious personal injury and/or damage to air handling unit. Read and understand the entire chapter "1 Security" before working on, servicing, or inspecting the air handling unit.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 40 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.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 41 7. Check that the rotor’s inlet surfaces are not covered with dust or other impurities. NB: Avoid touching the rotor inlet and outlet surfaces with your hands or tools. 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.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 42 For units (code TER/TXR), the pressure balance must be ensured by check- ing 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.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 43 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.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 44 - Adjust the purging sector if the need arises. The illustration shows the purging sector set to the maximum open position. 00031 Schematic diagram - sizes and model may vary. 1. Exhaust air 2.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 45 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.
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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.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 47 6.5 Air heater water (code ETAB-VV, SKB-VV) and Thermoguard (code ETAB-TV) 00025 Air heater water (ETAB-VV) 00275 Air heater water duct (SKB-VV) The heating coil consists of a number of copper tubes with aluminium fins pressed on them.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 48 Cleaning WARNING! Risk of serious personal injury and/or damage to air handling unit. Read and understand the entire chapter "1 Security" before working on, servicing, or inspecting the air handling unit.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 49 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 00027 Air heater electric (ETAB-EV, ETAB-SV)
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 50 Cleaning WARNING! Risk of serious personal injury and/or damage to air handling unit. Read and understand the entire chapter "1 Security" before working on, servicing, or inspecting the air handling unit.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 51 6.7 Air cooler water (code ETKB-VK, SBK-VK) 00028 Air cooler water (code ETKB-VK) The cooling coil consists of a number of copper tubes with aluminium fins press- sed onto them. The coil will have impaired capacity if dust forms a coating on the coil surfaces.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 52 Cleaning WARNING! Risk of serious personal injury and/or damage to air handling unit. Read and understand the entire chapter "1 Security" before working on, servicing, or inspecting the air handling unit.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 53 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.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 54 00021 Example fan unit size 04-06 with fan impeller 025 1. Screws suspension 2. Connection plate 3. Inlet cone 4. Vibration damper 5. Vibration damper console 6. Fan impeller with motor 7.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 55 WARNING! Risk of serious personal injury and/or damage to air handling unit. Read and understand the entire chapter "1 Security" before working on, servicing, or inspecting the air handling unit. 1. Switch off the unit, see "5.3 Before maintenance (switch off the unit)" page 2.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 56 13. Check the air flows by: – reading the flow display on the Climatix display unit for units with control equipment (code MX). – measuring Δp in the connections (measurement outlets) for flow measurement +/–...
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 57 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...
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 58 Cleaning WARNING! Risk of serious personal injury and/or damage to air handling unit. Read and understand the entire chapter "1 Security" before working on, servicing, or inspecting the air handling unit.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 59 6.10 Sound attenuator (code ETLD) 00029 Circular sound attenuator TER-04 and rectangular size 04-28 The function of the sound attenuator is to reduce the sound level in the system. Inspection WARNING! Risk of serious personal injury and/or damage to air handling unit.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 60 6.11 Cooling unit (code TEC-R, TEC-M, TECX, TECO). Reversible heat pump (code TTC, TTCH) 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.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 61 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.
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.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/medium...
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 63 7.2 Cooling unit (size 06-12 code TEC-R) / (size 06, 10 code TEC-M) - without Carel 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.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 64 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.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 65 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).
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 66 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:...
Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 67 7.3 Cooling unit (size 04-12 code TEC-R) / (size 04-12 code TEC-M) / (size 17-28 code TECO, TECX) - with Carel. Reversible heat pump (code TTC, TTCH) Alarm troubleshooting Inspection Possible cause...
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 68 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.
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Operation and Maintenance Envistar Top 04-28 DSET.231231.10.en Page 69 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.
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You are welcome to contact us IV Produkt AB, Sjöuddevägen 7, S-350 43 Växjö, Sweden +46 470 – 75 88 00 www.ivprodukt.se, www.ivprodukt.com wwwivprodukt.no, www.ivprodukt.dk, www.ivprodukt.de Support: Control: +46 470 – 75 89 00, styr@ivprodukt.se Service: +46 470 – 75 89 99, service@ivprodukt.se Spare parts: +46 470 –...
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