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Operation and Maintenance

Envistar Compact

DSEC191101.01.EN

Continuous product development may give rise to specification changes without notice.

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.

The integrated cooling unit StarCooler (code ACEC) is available as an option.

The units are usually supplied with integrated control equipment, but can also be

obtained without control equipment.

3.2 Home Concept

The Home Concept version of the units have, among other things, specially

adapted control equipment and air balancing dampers for the extract air. A filter

cabinet for aluminium or carbon filters is available as an optional extra.

Envistar Compact with integrated cooling unit is not available in the

Home Concept version.

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Содержание Envistar Compact

Страница 1: ...Operation and Maintenance Envistar Compact Order number Project Translation of the original instructions ...

Страница 2: ... 50 F7 Excl filter Set of filters Aluminium filter AL Unit type ACER ACEC Output var 1 2 3 Home Concept model Control equipment MX UC MK US Unit parts and accessories Recovery rotor ACRR Air heater water ECET VV ThermoGuard ECET TV Air heater electric ECET EV Output var 1 2 3 Air cooler water ECET VK ECET DX Damper ECET UM ECET TR Sound attenuator ECET LD ...

Страница 3: ...warranty 9 2 8 Spare parts 9 2 9 Dismantling and decommissioning 9 3 Technical description 10 3 1 Envistar Compact air handling unit 10 3 2 Home Concept 10 3 3 StarCooler cooling unit code ACEC 11 4 Wiring instructions and fuse protection 13 4 1 MX Complete control equipment and UC Complete electrical connection to terminal without controller unit 13 4 2 MK Fans and heat exchangers electrically co...

Страница 4: ...otary heat exchanger code ACRR 24 6 4 Air heater water ECET VV and Thermoguard ECET TV 28 6 5 Air heater electric code ECET EV 30 6 6 Air cooler water code ECET VK and Air cooler for direct expansion code ECET DX 31 6 7 Fan unit 32 6 8 Damper code ECET UM ECET TR 35 6 9 Sound attenuator code ECET LD 36 6 10 StarCooler cooling unit code ACEC 37 7 Troubleshooting 38 7 1 StarCooler cooling unit code ...

Страница 5: ...re you open the inspection doors WARNING Rotating fan impeller risk of personal injury Shut down the unit via the service switch in the control equipment then turn the safety switch to the 0 position and lock it Wait at least 3 minu tes before opening inspection doors NB The doors in front of moving parts should normally be locked there are no safety guards Before carrying out work unlock the door...

Страница 6: ...ited unless specifi cally permitted by IV Produkt AB 2 2 Manufacturer The Envistar air handling units AHUs are manufactured by IV Produkt AB Sjöuddevägen 7 SE 350 43 VÄXJÖ 2 3 Designations The Envistar Compact is manufactured as a compact unit and the StarCooler cooling unit can be integrated as an optional extra The compact unit and cooling unit if selected have a model type plate affixed to the ...

Страница 7: ...produkt com 0 1 Art Nr 19194 0001_01 1 2 3 180s Typical CE label for air handling units 0409 Cooling unit Order number Code Key Model Name of project Date of manufacture PS Max allowable pressure PT Test pressure TS Temperature range Protection level low Protection level high Refrigerant Fluid group GWP Refrigerant charge Circuit 1 Refrigerant charge Circuit 2 Refrigerant charge Circuit 3 IV Produ...

Страница 8: ...rcuit is carried out by a certified refrigeration technician Ensure that refrigerant is handled in an environmentally secure manner and in accordance with national regulations By operator we refer to the European Parliament s definition the natural or legal person exercising actual power over the technical functioning of the equipment and systems Leakage inspection and registration The following a...

Страница 9: ...arranty a complete documented and sig ned IV Produkt Service and Warranty Manual must be presented 2 8 Spare parts Spare parts and accessories for this unit are ordered from your nearest IV Produkt sales representative When ordering state the order number and designation These are stated on a model type plate affixed to each component There is a separate spare parts list for the unit refer to Orde...

Страница 10: ...units can be connected to ducts at the ends or via two of the connections at the top The integrated cooling unit StarCooler code ACEC is available as an option The units are usually supplied with integrated control equipment but can also be obtained without control equipment 3 2 Home Concept The Home Concept version of the units have among other things specially adapted control equipment and air b...

Страница 11: ...he event of overcurrent or if the safety circuit alarm trips the motor protec tion the compressor stops the connector for the sum alarm closes and alerts the control unit In the event of an alarm correct the fault and reset the protective motor switch NB The high pressure switch has a manual reset button The safety circuit alarm will trip in the event of two different faults High pressure in the s...

Страница 12: ...from the evaporator and the com pressor leaves the unit via the condenser in the extract air It is important to ensure that the air volumes are above the specified minimum flow on both the outdoor air and extract air side The process cannot work if these air volumes are not available The energy supplied to the cooling system from the evaporator and the com pressor leaves the unit via the condenser...

Страница 13: ...ble Safety switch A safety switch must be fitted and wired on each power supply Wiring diagrams For wiring diagrams for units with integrated control equipment refer to the order unique wiring diagram supplied with the unit or docs ivprodukt com Control Diagram Unit functions power supply and fuse protection For power supply to the unit functions and recommended fuses refer to Order Unique Documen...

Страница 14: ...NTROL 0 10V OPERATION 1 230V ALARM CLOSES BETWEEN 3 4 IN EVENT OF ALARM POWER SUPPLY 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 tion instructions see below Code HS for un...

Страница 15: ...on changes without notice OJ Electronics 2 0 10V 1 GND 10 NO 9 C 8 NC L N PE CONTROL POWER SUPPLY 1 230 V AC ALARM CLOSES IN EVENT OF ALARM Rotary heat exchanger code ACRR Emotron 33 34 36 37 41 42 43 L N PE CONTROL 0 10 V DC POWER SUPPLY 1 230 V AC ALARM CLOSES IN EVENT OF ALARM COOLING RECOVERY CLOSED CONTACT GIVES FULL SPEED ...

Страница 16: ... design of the duct system and the settings configuration of the control system e g gradual start of fans open damper when the fans are in operation 5 2 Actions in case of standstill According to guidelines for hygienic design VDI 6022 Part 1 In case of prolonged standstill in air treatment systems more than 48 hours it should be ensured that no moist areas can be found downstream of the cooling c...

Страница 17: ... leak inspection by a certified cooling technician The validity of the product warranty is conditional on the system having been commissioned correctly 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 NB Wiring of connections and other electrical work may only be carried out by a qual...

Страница 18: ...rop Change filter if necessary 14 signature signature signature signature Rotary heat exchanger ACRR Visual inspection Check press ba lance Check diff pressure Control rotor speed Clean if necessary 16 signature signature signature signature H O 2 Air heater water ECET VV ECET TV Visual inspection Clean if necessary Check function 19 signature signature signature signature Air heater electric ECET...

Страница 19: ...port if necessary 27 signature signature signature signature More frequent servicing may be required in certain environments Home Concept Service year 20 for unit no Service performed date and signature Functional section Code Recommended ac tion insp Page ref 12 mths 24 mths 36 mths 48 mths date date date date AL Aluminium filter in filter cabinet ACET 08F size AL Check pressure drop Clean if nec...

Страница 20: ...ecting efficiency also varies substantially It is therefore important to use filters of the same quality and capacity when you change them According to guidelines for hygienic design VDI 6022 Part 1 The supply air filter must be class ePM1 50 F7 or have a greater filtration efficiency The filters are designed for one time use If they become fouled the unit will lose capacity The filters should the...

Страница 21: ... designed for one time use and the filter is com bustible in its entirety Lifespan and filter control Carbon filter The function and lifespan of the carbon filters depends on the volume of air that passes through and on the molecular density of odorous substances This me ans that the time intervals for filter replacement can vary from unit to unit depen ding on operation mode and the volume of odo...

Страница 22: ...ocument 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 Conceptversion Pressure drop is measured with a manometer connec ted to measurement outlets The measurement outlets are connected to each side of the filter xx Pa xx Pa If the filter has reached its speci...

Страница 23: ... 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 3 Release the eccentric rails 4 Remove the old filter by pulling it towards you 5 Clean the filter cabinets 6 Install the new filter press in the eccentric rails to engage them and close the inspection door 7 Reset the FLC filter c...

Страница 24: ...covery It is not usual for the rotor passages to become fouled with dust since the rotor is normally self cleaning However this might occur if the dust is of a sticky na ture A reduction of the extract air flow e g due to fouling of the extract air filter en tails reduced heat recovery efficiency The Home Concept version of the units is equipped with a control function for the pressure balance ove...

Страница 25: ...o be shortened The rotor speed should not be lower than 8 rpm during full energy recovery 6 Check that the drive belt is intact and clean 7 Check that the rotor s inlet surfaces are not covered with dust or other impu rities 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 ETET TR regulates the press...

Страница 26: ...e in order to throttle in the correct pressure balance P1 P4 P3 P2 100 125 25 Pa P 1 atm 101 kPa Trim damper 9 Check the differential pressure across the rotor The purging sector is fac tory installed set to the maximum open position Depending on the unit s pressure difference across the rotor the purging sector may need adjust ment An incorrect setting may impair the efficiency Inspection and adj...

Страница 27: ... air Direction of rotation Extract air Exhaust air Schematic diagram sizes and model may vary 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 Compressed air at low pressure max 6 bar can be used for blowing the surfaces clean To avoid damage the nozzle should not be held any cl...

Страница 28: ...ters as time passes dust deposits will form on the front edges of the coil fins at the inlet side To utilise its full capacity the coil must be well vented The pipework should be vented by ope ning the bleeder screws in pipe connections and or an air vessel Inspection Check 1 The coil fins to detect possible mechanical deformity 2 That the water coil is not leaking Cleaning If the fins on the batt...

Страница 29: ... seat clean If the safety valve continues to leak you will have to replace it with a new one of the same type and with the same ope ning pressure 2 Any shut off valves on the supply or return lines may not be closed if free zing temperatures are likely 3 If a Thermoguard coil has frozen let it thaw completely before restarting operation If the heat recovery unit is installed upstream of the coil i...

Страница 30: ...ntactors switch out 2 Then sharply increase the setpoint setting and check that the electric output steps switch in 3 Restore the temperature setting 4 Shut down the unit via the service switch in the control equipment safety switch in the 0 position NB 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...

Страница 31: ...er the cooling coil for collecting and removing eva poration water Inspection Check 1 The coil fins to detect possible mechanical deformity 2 That the water coil is not leaking 3 That cooling energy is uniformly distributed across the coil surfaces in ope ration 4 The drip tray and drain with water trap clean if necessary 5 That the water trap without non return valve is filled with water Cleaning...

Страница 32: ...acity will be unsatisfactory Imbalance may also force moist air out into the building structure One reason why the fans are generating too little air flow may be that impuri ties have collected on the fan impeller blades 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 ...

Страница 33: ... due to a coating or damage to the fan impeller blades 3 Listen to the sound from the motor bearings If the bearings are in good condition you will hear a slight purring sound A scraping or pounding sound may mean that the bearings are damaged and service is then required 4 For size 04 06 Check that the fan impeller with motor position 7 is firmly mounted in the upper fan support position 9 and th...

Страница 34: ...ns measurement outlets for flow measurement for units without control equipment code UC MK US Use the unit s air flow label and see which flow corresponds to the measured Δp Luftflöde Airflow Luftvolumenstrom Ilmamäärä Przepływ powietrza Art Nr 19121 1201 Q 154 P m h EC400ZCPR G1 Q 1 23 38 P 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 0 4 0 5 0 6 0 8 0 7 0 9 1 0 1 1 1 2 1 3 1 4 1 ...

Страница 35: ...rrectly adjusted possible odours in the extract air are likely to be transferred via the rotor to the supply air Units that are supplied with integrated control equip ment are equipped with the pressure controlled rotor purging function control function in order to optimise the trim damper function and minimise the risk of transferring odour Inspection 1 Check the function of the damper actuator 2...

Страница 36: ... 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 Cleaning Vacuum and or wipe all surfaces with a damp cloth In the event of stubborn dirt use a mild alkaline detergent ...

Страница 37: ... responsibility with regards to leakage inspec tion and registration see 2 6 Handling of refrigerant page 8 Visual check Check 1 The fins on the condenser and evaporator to detect mechanical deforma tions 2 The drip tray and drain with water trap clean if necessary 3 That the water trap without non return valve is filled with water Cleaning If the fins on the batteries are dirty clean them by vacu...

Страница 38: ...runs in cooling recovery Turn off the cooling recovery function Compressor is not ope rating The power supply has been interrupted Check the control safety switches and fuses Compressor has opened a safety circuit Check and reset if needed Defective compressor Check replace The low pressure con trol switches out the compressor Insufficient refrigerant volume The cooling system has a leak Find the ...

Страница 39: ... 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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