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Ver 2_en_2022-06-27

Assembly Instructions

Envistar Flex

ivprodukt.docfactory.com

Order Portal

1  SAFETY

This section addresses important safety aspects of assembly, with the aim of raising safety 

awareness and avoiding personal injuries and damage to surroundings and units. 

00177

This manual contains important instructions. Read it carefully and follow 

the instructions. 

Pay special attention to warning and information messages, as well as 

markings on the product. 

Keep the manual for future use.

1.1 

Intended use

Intended use

The product is intended to be used Air handling unit for comfort ventilation in properties.

Intended users

The contents of this manual are intended for personnel assembling the unit on site.

Intended user environment

•  The unit is usually placed indoors, but is also available as an outdoor version. 

•  When installed indoors, the unit must be installed in a ventilated area that maintains a 

temperature b7 and +30 °C, and that maintains a moisture content of <3.5 g/kg in 

dry air in the winter. 

•  The unit can also be equipped for assembly in cold attics.

Unintended use

Any use other than specified in Intended use is prohibited unless specifically permitted by IV 

Produkt. It is not permitted to use the unit in potentially explosive environments.

1.2 

General safety

Failure to comply with the safety precautions may result in injury to persons or damage to air 

handling units. To avoid personal injuries and damage to surroundings or units:

•  Follow national and local laws/regulations for safe work, e.g. fall protection when working 

at a height.

•  Do not wear loose clothing or jewellery that may get stuck.

•  Do not step or climb on the unit.

•  Use appropriate tools. 

•  Use appropriate personal protective equipment.

•  Note the unit’s markings: product signs, information and warning stickers.

Personal protective equipment

Personal protective equipment must always be used based on the risks present in the work-

place. For example, wear protective shoes with steel toecaps, hearing protection, protective 

helmet, gloves, safety glasses or goggles, fully-covering clothing, safety overalls, mouth-

guard/protective mask and/or fall protection where the work and work environment requires it.

Summary of Contents for Envistar Flex

Page 1: ...Assembly Instructions Envistar Flex Size 060 1540 Translation of the original instructions ...

Page 2: ......

Page 3: ...4 2 Lifting brackets pre mounted lifting lugs spreader bar 15 4 3 Lift of double stacked parts parts on top of each other 15 4 4 Lift with bracket EMMT 08 for 50 profile 16 4 5 Lift with bracket EMMT 12 for 60 profile 17 4 6 Lifting of unit pre mounted on support 18 4 7 Lifting of unit pre mounted on base frame 19 4 8 Lifting thermal wheel 1250 D1 1540 D1 from truck 20 5 PREPARE ASSEMBLY 21 5 1 Se...

Page 4: ... Assemble cross flow section ERX EKX 42 7 9 Assemble coil recovery EXL 42 8 CONNECT COIL WATER 43 8 1 Connect coil to pipelines 43 8 2 Connect heating coil 43 8 2 1 Heating coil ELEV in unit EMT VV in duct 43 8 3 Connect cooling coil 44 8 3 1 Cooling coil ELBC in unit ESET VK in duct 44 8 4 Connect frost protection sensor 44 8 4 1 Connect immersion sensor 44 8 4 2 Contact clamp on detector 45 8 5 ...

Page 5: ...N ACCESSORIES 51 12 1 Connect to ducts 51 12 1 1 Connect to rectangular duct 51 12 1 2 Connect to circular duct 51 12 1 3 Connect sleeve accessories 51 12 2 Connect duct coils 51 12 3 Connect sound attenuator EMT 02 51 12 4 Connect shut off damper EMT 01 and trim damper ESET TR 51 13 AFTER ASSEMBLY 52 13 1 Subsequent inspection and maintenance 52 14 SUPPORT 52 ...

Page 6: ...g kg in dry air in the winter The unit can also be equipped for assembly in cold attics Unintended use Any use other than specified in Intended use is prohibited unless specifically permitted by IV Produkt It is not permitted to use the unit in potentially explosive environments 1 2 General safety Failure to comply with the safety precautions may result in injury to persons or damage to air handli...

Page 7: ...during assembly Electrical connection and electrical work may only be carried out by a qualified electrician For initial start up of the unit see Operation and Maintenance of the unit on IV Produkt s order portal Risk of life threatening or serious personal injury WARNING 00189 Art Nr 19194 0013 Follow the lifting and assembly instructions in this manual Use lifting equipment where available Use a...

Page 8: ...odel Malli Model Modell Produktkod Product code Tuotekoodi Kod produktu Produktcode Aggregatbeteckning Project Kohde Agregat Bezeichnung Tillv ort Made in Valmistettu Produkcja Herst Ort Tillv m Manuf m Valmistus k Miesiav pr Herst Monat XXXX XXXX Envistar XXX X 01 XX XX X XX XX LAXX VÄXJÖ SWEDEN YYMM 1 2 3 4 5 6 7 Figure Example of a unit type plate 1 Order number 2 Product name model 3 Product c...

Page 9: ...nd dirt The packaging should be kept on as long as possible to avoid penetration of dirt and dust into the unit Duct connections on outdoor units are protected with a sheet metal covering 1 5 Storage transport For temporary storage the product should be placed on a flat surface in a dry environment The original packaging should be unbroken Condensation water which can occur during storage in fluct...

Page 10: ...entation that is not specific to order is retrieved under ALL DOCUMENTA TION 2 2 Information messages not safety related 00182 Symbol together with information text highlights difficulties and also gives tips and recommendations 2 3 Tools for assembly A bag of screws nuts corner fittings and other items to be used for assembly is supplied with each unit The following tools are suitable for assembl...

Page 11: ...wing Outdoor air Extract air Supply air Exhaust air Fan Filter Shut off damper Trim damper H O 2 Cooling coil water H O 2 Heating coil water 00209 Heating coil electric Sound attenuator Rotary heat exchanger Cross flow heat exchanger Counter flow heat exchanger Compressor Cooling unit DX DX Reversible heat pump Media section Quick connector ...

Page 12: ...different heights The framework of the units consists of aluminium profiles Size 060 980 50 x 50 mm 50 profile Size 1080 1540 60 x 60 mm 60 profile Outdoor units are pre mounted on beam frames aluminium profiles with a fixed height of 100 mm for 50 profile or 160 mm for 60 profile and cannot be supplemented with legs or adjus table feet Unit parts that have pre assembled supports have lifting lugs...

Page 13: ... in this manual Use lifting equipment where available Use appropriate protective equipment The unit parts are often heavy and cannot be lifted by hand See weights indicated on the layout drawing Risk of life threatening or serious crushing or compression injury WARNING 00180 Follow the instructions for lifting in this manual Never exceed the specified weight for the respective lifting method or li...

Page 14: ...hains straps must be shortened or extended until the angle is less than 15º The spreader bar must be 100 400 mm wider than the unit 00095 max 15 max 80 max 80 max 15 max 15 max 80 1 2 3 4 Figure Illustration of lift with spreader bar and inclination 1 Lift with EMMT 08 with spreader bar 2 Lift with EMMT 12 with spreader bar 3 Lift in base frame with spreader bar 4 Incorrectly mounted lifting brack...

Page 15: ...600 kg A safety factor of 1 6 has been utilised in static testing of the lifting bracket Use shackle with safety factor 6 1 Brackets must not be mounted downwards or sideways Lifting brackets must not be mounted in the middle profile of double stacked parts 00097 1 5 3 2 4 6 Figure Lifting bracket EMMT 08 1 Lifting bracket EMMT 08 2 Lifting lug 3 Lift stop sticker 4 Wing nut 5 Slide stop sticker 6...

Page 16: ...00 kg A safety factor of 2 0 has been utilised in static testing of the lifting bracket Use shackle with safety factor 6 1 Brackets must not be mounted downwards or sideways Lifting brackets must not be mounted in the middle profile of double stacked parts Lift only one part at a time 00098 1 3 2 Figure Lifting bracket EMMT 12 1 Lifting bracket EMMT 12 2 Lifting lug 3 Fixing holes EMMT 12 is deliv...

Page 17: ...uipment Never remove or move the factory fitted lugs The lifting straps must always be pulled through the lugs to prevent the lifting straps from slipping away under the unit A falling unit when lifting can cause crushing injuries Risk of serious crushing injury WARNING 1 Pull the straps under the unit parts Make sure the straps go through the lugs 2 Lift with suitable lifting equipment 00099 1 Fi...

Page 18: ...y factor 6 1 Lifting straps must not be pulled through the lifting lugs A falling unit when lifting can cause crushing injuries Risk of serious crushing injury WARNING Aluminium beam H 100mm Maximum load 750 kg lifting lug Total load 3000kg all four lifting lugs Aluminium beam H 160mm Maximum load 1350kg lifting lug Total load 5400kg all four lifting lugs 1 Fit a shackle in each of the pre mounted...

Page 19: ...fting lugs Use shackle with safety factor 6 1 Lifting straps must not be pulled through the lifting lugs A falling unit when lifting can cause crushing injuries Risk of serious crushing injury WARNING Lifting brackets are placed on different points on the thermal wheel depending on the kind of lift to be done 00096 2 1 3 Figure Lifting of thermal wheel from truck 1 Brackets when lifting from truck...

Page 20: ...s and opening dampers when fans are operating See 12 DUCT CONNECTION ACCESSORIES page 50 Water trap is mounted as indicated Se 11 CONNECT DRAINAGE WATER TRAP page 49 5 1 Sectioned configuration Easy Access Unit parts delivered in block form must be assembled before they are put into place on the support Follow the directions in 6 ASSEMBLY GENERAL page 22 and 7 ASSEMBLY SECTIONED CONFIGURATION page...

Page 21: ...not included in delivery 6 U profile not included in delivery 7 Risk of water intrusion The height of the aluminium base frame is 100 mm or 160 mm and the width is 50 mm The air handling unit on the underlying base frame shall be dimensioned as distributed load The air handling unit on the aluminium base frame is self supporting between inspection side and back and only needs support under the lon...

Page 22: ...low the lifting and assembly instructions in this manual Use lifting equipment where available Use appropriate protective equipment The unit parts are often heavy and cannot be lifted by hand See weights indicated on the layout drawing Risk of life threatening or serious crushing or compression injury WARNING 00189 Art Nr 19194 0013 Follow the lifting and assembly instructions in this manual Use l...

Page 23: ...erything is in place and is correctly assembled 10 Connect the unit parts together with quick connectors and assemble other control equip ment See 6 5 Quick connectors page 27 11 Assemble drainage and water trap See 11 CONNECT DRAINAGE WATER TRAP page 49 12 Fit cover detail See 6 7 Fit cover detail on join page 29 13 Ensure everything is properly assembled See 13 AFTER ASSEMBLY page 51 and if prob...

Page 24: ...t by screwing the support feet 7 Secure all feet with the lock nuts 6 3 Fit sealing strip The sealing strip is only fitted on one of two opposite parts The sealing strip is not fitted on the rotary heat exchanger For units in sectioned configuration sealing strip must also be fitted in the division Does not apply to ThermoCooler HP EcoCooler For outdoor version units sealing strip must also be fit...

Page 25: ...e lower part 6 4 Join the parts together 50 profile unit size 060 980 Usually the unit parts are joined together with screw joints Otherwise where there is a lack of space ability to screw the unit parts are joined together with guide pins 60 profile unit size 1080 3150 On larger units the unit parts are joined together with tensioning lugs 00057 1 2 3 Figure Screw joint and guide pin 1 Screw join...

Page 26: ...ugs 1080 1550 8 tensioning lugs are fitted next to the screw joints 2 Locating tensioning lugs 1950 3150 6 tensioning lugs are fitted between the screw joints 6 4 3 Join with guide pins Guide pins must always be set all the way from corner to corner on the units parts as well as also on the opposite side If two flush parts are assembled vertically with guide pins the pins must be put through both ...

Page 27: ...connectors to be joined are marked with the same designation 6 5 1 Quick connector signal feed 1 Press together quick connectors according to marking arrows or other 00075 2 Screw together as hard as possible by hand 00076 6 5 2 Quick connector power supply 1 Press together quick connectors according to marking arrows dashes or similar 00077 2 Turn the arrow on the white cuff to the mark for close...

Page 28: ...sure sensor module but make sure to not loosen hoses or cables attached to the module 2 Fan without sleeve Unscrew the cover plate and lift it out including the screws 3 Unscrew the earthing braid from the rail on the unit part 4 Loosen the temperature sensor and remove it through the hole on the fan frame 5 Unscrew the quick connectors between the fan and the unit part See 6 5 Quick connectors pa...

Page 29: ...urned correctly so that hoses and cables from the pressure sensor module can be connected If the fan has a sleeve this must also be inserted into the sleeve rail 2 Fan without sleeve Screw on the cover plate 3 Screw the earthing braid to the unit s rail If the fan is refitted use the supplied self tap ping screw 4 Insert the pins or self tapping screw through the holes in the rails 5 Firmly press ...

Page 30: ...that have electrical connection see 10 CONNECT CONTROL EQUIPMENT page 47 00189 Art Nr 19194 0013 Follow the lifting and assembly instructions in this manual Use lifting equipment where available Use appropriate protective equipment Exercise caution when working between unit parts Exercise caution when placing unit parts on the support Use the support to secure the parts against possible tipping ri...

Page 31: ...ation of the control cabinet on delivery 2 Hinge 3 Cable strip 4 Control cabinet seen from below 5 Main switch 6 Hanging bracket with bolt in control cabinet Remove the control cabinet from the unit 1 Lock the control cabinet with keys included 2 Remove the cover of the cable strip on top of the unit and disconnect all the quick connectors between the control cabinet and the unit part 3 Unscrew an...

Page 32: ... part See 6 5 Quick connectors page 27 3 Loosen the cable entry at the snap lock and pull it out completely upwards without disconnecting the cables from the cable entry 4 Lift off the top part without damaging the sealing strip around the cable entry Fit the fan and filter part together 1 Lift up the lower part onto the support 2 Lift up the top part onto the lower part without damaging the seali...

Page 33: ... 6 5 Quick connectors page 27 2 Loosen hoses 3 Loosen and remove bolts and screws in corner struts and joint fixings 4 For the three part version Cut away the putty in the joints that is affected by the dismant ling 5 Pull the parts apart without damaging the sealing strip between the parts Assemble counter flow exchanger 1 Slide the parts together without damaging the sealing strip 2 Screw the pa...

Page 34: ...o 6 ASSEMBLY GENERAL page 22 Use attached self tapping screws and pop rivets when joining together 00114 00114 8 10 9 1 5 2 3 4 7 7 6 Figure The parts of the thermal wheel 1 Inspection door 2 Upper part of casing 3 Upper part of thermal wheel 4 Lower part of thermal wheel 5 Jointing strip 6 Cover hatch back 7 Brush strip 8 Shell 9 Hole for mounting lifting lug 10 Straight sheet underneath The rota...

Page 35: ...he upper part of the thermal wheel onto the lower part of the thermal wheel until it is located in the middle of it The top of the thermal wheel must not be lifted into or put onto the shell Disassemble the lifting lug immediately after use 00115 3 Put a tensioning strap around the thermal wheel and tighten 00118 4 Assemble the shell at the joints letter markings with self tapping screws JT2 5 5x3...

Page 36: ...he thermal wheel 9 Screw on the jointing strips one on each side of the thermal wheel with self tapping screws MRTF M 4x12 ZnI When reassembling all screw holes are used 00119 10 Place the casing as high and as close to the thermal wheel as possible and lift the casing into place over the thermal wheel with the aid of four people lifting at all four corners 00120 00120 11 For size 360 600 Put toge...

Page 37: ...0123 14 Put putty in the joints on the inside of the cover plates two joints on each side of the thermal wheel 00124 15 Unscrew both transport safety devices marked with stickers 00125 16 Screw the cover hatch onto the back of the thermal wheel with self tapping screws DK 4 2x14 PH2 ZnI On size 740 a cover hatch is also mounted on the inspection side of the thermal wheel 17 Fit cover plugs over th...

Page 38: ...the part towards the rotary heat exchanger sealing strips should also be fitted on the upper edge of the profile to ensure tightness 00114 00158 1 2 3 7 8 10 9 6 5 9 4 10 Figure Cooling unit parts 1 Media part 2 Unit part compressor coil 3 Unit part coil 4 Coil hatch 5 Drainage pipe 6 Sealing strip 7 Joint pipe 8 Drainage pipe 9 Sheet metal strip upper part 10 Sheet metal strip lower part 1 Fit se...

Page 39: ... strips page 39 7 5 1 Assemble the media cabinet sheet metal strips 1 Mount the upper sheet metal strip on the upper side of the media cabinet using self tap ping screws 2 Mount the lower sheet metal strip on the lower side of the media cabinet using self tap ping screws 7 5 2 Disassemble trim heater coil 1 Open the hatch in front of the coil with the four levers on the hatch 2 Disconnect the two ...

Page 40: ...t the sealing strip on the lower part 2 Screw the upper section to the lower section in all corner struts 7 7 Assemble smoke gas connection EKR 00065 2 1 Figure Smoke gas connection sectioned configuration 1 Sealing strip 2 Corner strut 1 Fit the sealing strip on the lower part 2 Screw the upper section to the lower section from below in all corner struts Use bolts up into the intermediate level p...

Page 41: ...rectly positioned towards the fan and filter section 5 Cross flow section incorrectly positioned towards the fan and filter section 1 Fit the sealing strip on the lower part at the outer edges and on the cross braces 2 Screw the upper section to the lower section in all corner struts 7 9 Assemble coil recovery EXL 00062 1 Figure Coil recovery sectioned configuration 1 Screws 1 Put the lower part o...

Page 42: ...B B A Figure Connection pipe heating coil ELEV EMT VV A Fluid in B Fluid out The heating coil must be fitted with frost protection of the clamp on or immersion sensor type The heating coil is reversible to suit air from the right or left Ensure that the coil is turned so that there is a counter flow direction between air and liquid flow Thermoguard coils are marked with inlet and outlet respective...

Page 43: ... sensor The frost protection sensor is placed at the coldest point of the coil i e on the outgoing fluid assembly tubes Frost protection sensor is connected to prevent ice from forming in the pipe lines of the coil The coil should be turned so that the immersion sensor socket contact sensor for frost protection ends up on the outgoing fluid side 8 4 1 Connect immersion sensor 00069 Figure Coil wit...

Page 44: ...sockets for pressure control should be at least 1 m from duct connection so as to avoid disturbing turbulence 3 1 2 3 00070 Figure Contact sensor 1 Clamp on detector placed on pipe 2 Outgoing fluid at top clamp on sensor up 3 Outgoing fluid at bottom clamp on sensor down 8 5 Connect pipes for bleeding and drainage The connection pipe must be equipped with bleeding at the highest point and drainage...

Page 45: ...may be of two or three way type depending on the connected heating source 00166 1 3 2 4 Figure Control valve in different configurations 1 District heating two way valve 2 District cooling two way valve 3 Own heating source three way valve 4 Own cooling plant three way valve 8 7 Assemble pump pipework package The pump is only included in IV Produkt Accessories Pipework package For informa tion and...

Page 46: ...nd requires separate connection The air flow direction through the air heater must correspond with the direction arrow on the air heater The heater can be connected in horizontal or vertical ducts with the connection box to the side The distance from the air heater to duct elbows dampers filters or the like should be at least the distance corresponding to the diagonal measurement of the heater fro...

Page 47: ...c not specified in this section is done by a competent technician as instructed in Operation and Maintenance for the unit 10 1 Connect quick connectors between unit parts Connect together all quick connectors between unit parts See 6 5 Quick connectors page 27 6 ASSEMBLY GENERAL page 22 and 7 ASSEMBLY SECTIONED CONFIGURA TION page 30 10 2 Connect hoses for pressure control Location of measuring so...

Page 48: ...d after any duct coils heating cooling The supply air temperature sensor must not be placed in a sound atte nuator The sensor is connected to the control cabinet before delivery and hangs under the cabinet in a pretzel form 1 After the unit is fitted together pull the sensor to an appropriate point in the supply air duct 2 Screw the holder to the sensor in the duct 3 Conntect the sensor in the hol...

Page 49: ... Connect water trap MIET CL 04 accessories MIET CL 04 must not be used with outdoor version in case of un der pressure Heating cable pulled through drainage lines and water trap causes the ball not to seal Underpressure P Overpressure P 00071 1 Pmax 900 Pa 90 mmVp Pmax 400 Pa 40 mmVp ø 32 mm 2 2 ø 32 mm 1 3 Figure Water trap accessory 1 Outlet connected to drain 2 Cup always mounted upwards 3 Ball...

Page 50: ... Option 2 The ducts are connected with screws in the corners of the frame 12 1 2 Connect to circular duct Sleeve couplings on circular duct connections are equipped with rubber ring sealing 12 1 3 Connect sleeve accessories If the duct sleeves are connected for dampening vibrations the duct insulation is fitted over the entire connection 12 2 Connect duct coils The distance after a duct elbow damp...

Page 51: ...ea Inspection Notes Covers Make sure all covers hatches are in place All sides must have covers hatches Covers Ensure that inspection hatches do not jam when opening Adjust the hinges of the hatch If that is not enough adjust with the support feet After adjusting with support feet make sure that the unit does not tilt backwards The internal surfaces of the unit Make sure the unit is clean and free...

Page 52: ... 46 470 75 89 99 service ivprodukt se Spare parts 46 470 75 88 00 reservdelar ivprodukt se Documentation 46 470 75 88 00 du ivprodukt se IV Produkt AB Sjöuddevägen 7 S 350 43 VÄXJÖ 46 470 75 88 00 www ivprodukt se www ivprodukt com ivprodukt docfactory com Order Portal Ver 2_en_2022 06 27 ...

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