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Instruction Manual ZHK

V07-21.0

29/140

3.4.3 Mounting of base frame crane lugs

WARNING!

For mounting crane lugs on AHU casing sections when plate heat exchanger and
heat wheel parts are delivered disassembled see

chapter 3.6 (Lifting when heat

wheel or plate heat exchanger casing is delivered in parts).

Base frame crane lugs are supplied in two versions and will be attached on the front side of the re-
spective delivery section in accordance with the necessary preparations, described in

chapter

3.4.2 (Necessary actions before lifting delivery sections with crane lugs

Execution of the lifting lugs (see

Figure 17

1. Right-side type
2. Left-side type

WARNING!

Attention to correct mounting of the base frame crane lugs according Figure
18:

blunt corner must point upwards

bending edge must point toward the center of gravity of the section

Figure 17:

Left-side type and right-side type of crane lugs

Figure 18:

Mounting of base frame crane lugs

Содержание ZHK

Страница 1: ...ZHK INSTRUCTION MANUAL...

Страница 2: ...e subject specific standards as well as local national and international regulations must be observed After completion of the work please give this instruction man ual to the operating staff Please ke...

Страница 3: ...Reception control 21 3 2 Lifting by forklift lift truck 23 3 3 Further necessary actions for the overlifting of both delivery sections on crane lugs as well as monoblocs 24 3 4 Over lifting of AHU se...

Страница 4: ...sure spray humidifier 77 Steam humidifier 77 6 3 Drain for condensate and excess water 77 6 3 1 Standard siphons 78 6 3 2 Ball Siphons 79 6 4 Duct connection airside connection to AHU 80 6 4 1 Require...

Страница 5: ...9 3 Air filters 115 9 3 1 Panel filters 116 9 3 2 Bag filters 116 9 3 3 HEPA filters 116 9 3 4 Activated carbon filters 117 9 4 Heat exchangers 117 9 4 1 Medium water steam 117 9 4 2 Refrigerant 118 9...

Страница 6: ...nection and commissioning maintenance and repair 131 11 5 1 Foundation and erection 131 11 5 2 Assembly connection and commissioning 131 Ensure the tightness of the AHU 131 Motor 132 Fan section 132 A...

Страница 7: ...l are observed and implemented This includes local occupational health and safety regulations and general safety regulations for the area of application of the AHU 1 2 Limitation of liability EUROCLIM...

Страница 8: ...on measures must be installed a maximum temperature of the transported air of 60 C inside the AHU at motors and other electrical electronic components up to 40 C maximum The AHU must be used as intend...

Страница 9: ...the component con cerned safety requirements is excluded It is important to note the issued EC declaration of conformity applies only for the scope of delivery from EUROCLIMA not for components provi...

Страница 10: ...the AHU and in the delivered manual on page 1 Depending on AHU type and execution the following documentation is included Operation and instruction manuals of compo nents or can be downloaded from th...

Страница 11: ...manufacturer for safety instructions the most technically accu rate interpretation is valid At differences between this manual and the instruction manual of the component manufacturer the instruction...

Страница 12: ...of electrical voltage Warning of pointed objects and sharp edges Warning of inflammable substances Warning of rotating parts Warning of hot surface Warning of tilting parts Warning of suspended load W...

Страница 13: ...or rolling objects Eye and face protection Eye and face protection are used to protect against foreign objects and solids as well as against chemical and thermal hazards Hearing protection Hearing pro...

Страница 14: ...efore severe respiratory protec tive equipment is required and the danger zone has to be avoided Exposure to rotating parts hot surfaces electrocution When working on and or in the AHU note the follow...

Страница 15: ...r locks are locked and the keys are re moved refer to chapter 5 2 Doors Storage of potential energy in gases and fluids WARNING All heat exchangers can be operating up to a maximum pressure of 15 bar...

Страница 16: ...lifetime of the system Never operate the refrigeration system with a closed discharge line valve Risk of burns on hot surfaces WARNING On the compressor casing pipelines and circuit components and on...

Страница 17: ...permitted speed of the fan as it could otherwise lead to sparking and damage Appropriate measures must be taken against all types of ignition sources that are not specific to the AHU and are not incl...

Страница 18: ...the delivery state of the AHU In the mounted state the AHU fulfills the requirements of the specified European directives and harmonized standards only if the instructions and information in this inst...

Страница 19: ...nd a heat pump for heat recovery in accord ance with regulation EU 1253 2014 Article 1 1 g Exemption 9 AHU with ERS and integrated refrigerating machine for heating purposes The mentioned exemptions r...

Страница 20: ...rters Connection to an external protective conductor system See chapter 7 1 Connecting to an external protective conductor system Electric heater Installation if not supplied by EUROCLIMA and connecti...

Страница 21: ...ir filters If above mentioned equipment is not included in delivery by EUROCLIMA it must to be provided on site 2 5 Staff selection and qualification All persons who are authorized to work on the air...

Страница 22: ...used and the environmental conditions a superficial corrosion may occur on components For example motor shafts fan shafts pulleys clamping bushes sheet cutting edges and so forth The resulting corros...

Страница 23: ...ovides better ac cessibility and maneuverability Sections have a base frame on which on each corner a supplied crane lug can be attached Size and weight of the sections are indicated on the AHU drawin...

Страница 24: ...In accordance with the EUROCLIMA drawing the AHU will be delivered as monobloc or more deliv ery section s The AHU parts or the monobloc are delivered on pallets and can be unloaded and moved by fork...

Страница 25: ...not be stressed or damaged Load carrying equipment shall not run over sharp edges and must not be knot ted or twisted The load carrying equipment must be secured against slippage Before lifting check...

Страница 26: ...ng to chap ter 3 3 Further necessary actions for the overlifting of both delivery sections on crane lugs as well as monoblocs have to be observed Parts of the AHU may only be lifted with lugs individu...

Страница 27: ...corresponding on the section itself Example refer to Figure 10 Delivery section L5 601 kg Figure 10 AHU section drawing with weight details 3 4 2 Necessary actions before lifting delivery sections wi...

Страница 28: ...Instruction Manual ZHK V07 21 0 27 140 Example 1 Figure 11 Delivery section with mounted damper Figure 12 Delivery section with dismounted damper Figure 13 Delivery section with mounted crane lugs...

Страница 29: ...Manual ZHK 28 140 V07 21 0 Example 2 Figure 14 Delivery section with mounted flexible connection Figure 15 Delivery section with dismounted flexible connection Figure 16 Delivery section with mounted...

Страница 30: ...ched on the front side of the re spective delivery section in accordance with the necessary preparations described in chapter 3 4 2 Necessary actions before lifting delivery sections with crane lugs E...

Страница 31: ...19 The force effect must take place uniformly across all four crane lugs of a delivery section After the pre positioning of the delivery section at the desired position remove the lifting lugs and us...

Страница 32: ...ing operation Two three or more holes per side of the monobloc are available according to the length and weight of the AHU Consequently two or more tubes rods can be used The determination of the numb...

Страница 33: ...gure 25 Positioning of the monobloc crane lifting lug at the counter frame Figure 26 Fixing of the metal sheet and the monobloc crane lifting lug with nuts Figure 27 Monobloc crane lifting lugs mounte...

Страница 34: ...elivered in several individual parts For in structions on the lifting procedure see also chapter 3 6 2 Lifting of heat wheel or plate heat exchanger 3 Lifting of the top casing part on the top casing...

Страница 35: ...part of the AHU Figure 30 Flat crane lugs Figure 31 Assembly of flat crane lugs Bolts and nuts are delivered with the lifting lugs and must be tightened with the torque according to Table 5 If the li...

Страница 36: ...n cause damage on motors fans or pumps To avoid damage on bearings the rotors should be moved manually a few turns about once per month If the period between delivery and commissioning is more than 18...

Страница 37: ...Figure 34 left or strip foundations as shown in Figure 34 right For strip foundations concrete or steel beams shall be used see Figure 34 bottom right Steel beams constructions must have an appropriat...

Страница 38: ...or whether it is equipped with device feet supplied by EUROCLIMA The maximum permissible load limits per unit foot must not be exceeded and are as follows per unit foot with height adjustment without...

Страница 39: ...points are generally not required In special cases with particularly wide and heavy unit sections an additional central contact sur face can additionally reduce the static and dynamic deformation On r...

Страница 40: ...ition is not met the installation of the AHU in a sufficiently drainage system pan with an outlet may be an appropriate solution A humidity sensor with an alarm transmitter can offer additional protec...

Страница 41: ...roplet eliminators with caution and care 4 2 4 Special guidelines for flat AHUs ceiling AHUs Usage For the suspension from a ceiling Assembly of the individual components of the flat AHUs The individu...

Страница 42: ...ositions and functioning of wells etc are not blocked or hindered see Figure 39 Longitudinal profiles are intended to support the aluminum profiles on the bottom edges of the flat AHU Furthermore it i...

Страница 43: ...pre positioning of the sec tions is as follows Remove crane lugs If lifting lugs are mounted remove them To set the AHU in the exact assembling position it can be moved by a rod leverage Use the rod...

Страница 44: ...used Further information will follow in chap ter 5 1 5 Special features for roof AHUs and device separations at wet areas Figure 44 Sealing agent Sikaflex Figure 45 Applying the sealing agent Connecti...

Страница 45: ...sulation Undertake caution to prevent any damage either to the panel or to the device Figure 49 Removal of the external panel ZHK INOVA and ZHK VISION Housing type screwing construction The external p...

Страница 46: ...40 Figure 54 Bolt connection of base frames Additionally to the base frame there are other possibilities for connecting AHU parts These are dependent on the AHU series type and are listed below ranked...

Страница 47: ...nnection Figure 57 Easy Connection at two sto rey AHUs Figure 58 Mounted Easy Connection at two storey AHUs Figure 59 Hexagon bolt with locknut M8x20 Figure 60 Connection angle Figure 61 Connection vi...

Страница 48: ...me and door frame internal panel Screw spacing 152 mm Figure 65 Tapping screw 8 x 11 Figure 66 Tapping screw Ejot SHEETtracs 70 x 16 Figure 67 Joint on the AHU drawing Figure 68 Connection between doo...

Страница 49: ...xternal panel ZHK INOVA and ZHK VISION Figure 74 Self tapping pan head screw TORX 25 4 x 25 Figure 75 Screw connection of internal and exter nal panel Connection of roof plates Screw spacing minimum 3...

Страница 50: ...rews through the corresponding holes The precisely aligned and parallel flanges are connected with the enclosed bolts Initially all bolts are only loosely screwed as follows In the base frame profiles...

Страница 51: ...elivery sections together Reinsert the insulation and remount the external panel At AHUs of the series ZHK 2000 in outdoor execution or with outer aluminum panels the white protective film must be rem...

Страница 52: ...u midifier air washer special actions for sealing the AHU must be carried out 1 The sealing agent Sikaflex has to be applied instead of the sealing strip across the whole flange of the AHU 5 mm from t...

Страница 53: ...the roof flange is to seal refer to Figure 93 Figure 93 Sealing the roof flange Sealing of loose delivered base frame cover Sealings have to be provided at following positions see Figure 94 at the bas...

Страница 54: ...igure 94 Sealing of the base frame cover At AHUs in outdoor execution an additional separation bar included in the scope of delivery must be mounted at the separation positions at the roof flange see...

Страница 55: ...a sealing washer see Figure 98 Figure 98 Drilling screw countersunk head TORX 25 with sealing ring 4 8 x 30 Figure 99 Applied sealant Sikaflex Figure 100 Metal sheet roof mounted At the assembly of th...

Страница 56: ...gh AHU casing at right angles to the surface 2 Enlarge drillings on external panel and internal panel according to Table 7 by using a step drill see Figure 102 Size of the cable gland External drillin...

Страница 57: ...t lock signed with red point according to Figure 106 below 1 Remove nuts and bolts of position 1 2 and 3 2 Remove z shaped metal sheet position 4 3 Again fasten the nut of position 1 including the pot...

Страница 58: ...Figure 108 For a closed door the door is closed but not locked the handle is in vertical position the locking slit in horizontal position see Figure 109 Figure 108 Door open Figure 109 Door closed not...

Страница 59: ...e of the door panel and is shown in Fig ure 112 closed position and Figure 113 open position The rolling piston can be pressed from above if you are in the AHU with your thumb in the position open The...

Страница 60: ...EU T Figure 120 Inclined door panel varying slit width Figure 121 Adjustment of the door panel ZIS Figure 122 Adjusted constant slit width ZIS If the above described readjustment of the door panel is...

Страница 61: ...put through the prepared holes at the edge of the door panel and screwed to the door frame Figure 126 Fixed door panel TRA E Figure 127 Undoing the screw and removing the door panel TRA E from the doo...

Страница 62: ...ed back wards Therefore particularly when opening pressure sided doors it must be under taken very carefully Open the door panel carefully and detach it slowly from the sealing When the door panel det...

Страница 63: ...in stalled on site Ensure proper insertion of the filters the bound filter media side on the unclean air side During the installation it must be understood that the filter bags cannot not be clamped...

Страница 64: ...e 140 Figure 138 Delivery of the clips Figure 139 Insertion of the clips Figure 140 Fixed filter Bag filters are installed similarly Bags shells hang vertically 5 4 3 Laterally removable bag filters w...

Страница 65: ...d slowly and carefully with installation see Figure 144 Figure 144 Lifting the filter bags NOTICE Attention If different widths of filters are planned for one filter frame with clamp ing mechanism the...

Страница 66: ...g is then to fix on the filter cell or alternatively on the filter frame The following two installation frames are available for HEPA filters Standard HEPA filter frame The filter mounting frame is mo...

Страница 67: ...ilter tensioner with pressure plate HEPA frame Filter Safe This is a welded filter frame It is flanged in between the AHU casing whereby leakages between frame and casing can be avoided The filter ful...

Страница 68: ...ernal gear wheels 5 6 Hygienic AHUs In addition to the actions mentioned here the instructions according to chapter 9 12 Hygienic AHUs have to be followed and implemented After assembly all grooves an...

Страница 69: ...t exchanger connection it is necessary to hold against with a pipe wrench during the tightening process Figure 158 Figure 158 Holding against with a pipe wrench Recommended sealing material for thread...

Страница 70: ...associated hazards The piping for the heat exchanger should not hinder any maintenance required The connection of the heat exchanger is to execute as stipulated on the label on the AHU connec tion di...

Страница 71: ...drain at the lowest Otherwise the valves need to be mounted on another suitable point on the circuit Figure 165 Drain valve Figure 166 Vent valve 6 1 2 Steam heat exchanger The heater is heated to ab...

Страница 72: ...ratures of 110 C or higher Never add the chlorination chemical in front of the water inlet of the plate heat exchanger The chlorination should be added as far away as possible from the plate heat exch...

Страница 73: ...to ensure the desired water quality Pay particu lar attention to the carbonate hardness in fresh water The water treatment system is not supplied by EUROCLIMA and must be provided by the customer on s...

Страница 74: ...idification as well for air cleaning in the function of an air washer Hereinafter the term spray humidifier is used but the description is also valid if the sys tem is used as an air washer Spray humi...

Страница 75: ...e connecting tubes and clamps follows Table 9 The table shows the size and the number of clamps depending on the tube diameter For example 2 2 means two clamps on each end of the flexible connector Ri...

Страница 76: ...exible connector tube carefully with a dry clean cloth Check that the correct clamps are being used The clamps are imprinted with NORMA and the size range must be as indicated in Table 9 NOTICE Do not...

Страница 77: ...d strut 2 Threaded strut M10 3 Base support for strut Figure 172 Position and parts for installing the strut To install the threaded strut proceed as follows Fix the clamp for the strut at the upper h...

Страница 78: ...AHUs equipped from EUROCLIMA without control Required components listed in Figure 173 except position 6 Blowdown by tacosetter which is always included in the scope of supply from EUROCLIMA can be sel...

Страница 79: ...reeze mechanism has to be installed and provided on site The heights H1 H2 and H3 can be determined from the maximum negative pressure p and maxi mum pressure p in the section of the siphon or be dete...

Страница 80: ...siphon body has to be in stalled so that the direction of the arrow see Figure 176 corresponds to the flow direction Pa suction side Pa pressure side Figure 176 Observe the mounting position flow dir...

Страница 81: ...s panel flanges etc If no such accessories are supplied then the airside mounting of components of the duct system is made directly to the housing of the AHU Depending on the device opening this can b...

Страница 82: ...ystem For proper performance of the AHUs following of the basic rules of the duct construction is necessary By appropriate planning dimensioning and execution of the duct system increased pressure los...

Страница 83: ...rews The duct components are screwed as follows each at a distance of 120 mm from the corner additional number of screws see Table 10 and Figure 182 Table 10 Information on the screw distances Length...

Страница 84: ...it has to be noted that the intake socket is below the water surface The pump base has to be set so low that the suction tub declines towards the pump For noise insulation the foundation shall be exec...

Страница 85: ...11 AHUs 7 1 Connecting to an external protective conductor system The AHU must be connected to an external protective conductor system The AHU shall be either connected at the base frames or alternati...

Страница 86: ...tion loads and damage critical speeds or oper ating frequencies must be avoided see chapter 8 3 2 Vibration verifica tion EUROCLIMA therefore recommends that the operating conditions are continually m...

Страница 87: ...relay does not replace the motor protection switch or circuit breaker and is needed in addition The connection to a PTC relay is a prerequisite for the guar anteed warranty of the product in case of w...

Страница 88: ...mal contacts ETA AHU These AHUs are as standard equipped with a circuit protection switch and frequency converters if not equipped with EC motors When the motor is equipped with a PTC it is connected...

Страница 89: ...MA Figure 187 Rotation marking of plug fans Figure 188 Rotation marking of housing fans Figure 189 Rotation marking of EC fans Fastening torque for electrical connections on the control panel refer to...

Страница 90: ...y stop switch According to the standards IEC EN 60204 and VDE 0113 all hazardous facilities have to be equipped with a main switch which separates the plant from all active conductors of the main sup...

Страница 91: ...cution are fulfilled and instruction adhered 7 5 Variable frequency controlled drives VFD frequency converters If the frequency converter is supplied by an alternative company source other than EUROCL...

Страница 92: ...7 6 1 AHUs equipped by EUROCLIMA with control Units which are supplied by EUROCLIMA with control are limiting the supply air temperature to a default value of 35 C This execution and function as spec...

Страница 93: ...ectric heater from the power supply The two safety thermostats are connected in serial connection The two safety thermostats are equipped with manual reset After triggering the reason for stopping mus...

Страница 94: ...n scheme for electric heater according to EUROCLIMA Figure 194 Connection scheme for electric heater In the event of dehumidification at the wheel downstream of electric heater it is ensured that con...

Страница 95: ...ence of the plate heat exchanger is given in the plate heat exchanger section supply air in the technical data see Figure 195 In the part of the technical data of the exhaust air this value is not giv...

Страница 96: ...ed by a steady pressure increase but not if the pressure increases abruptly One possibility for pressure monitoring is a differential pressure switch The usage is described as follows Depending on the...

Страница 97: ...ust be adjusted at the differential pressure switch as trigger value NOTICE It is vital that this calculated value does not exceed the maximum admissi ble differential pressure according to the techni...

Страница 98: ...to destroy germs on surfaces as well as in the air in the direct radiation area If no other configuration is agreed these lamps should be mounted as evenly as possible and distributed on the ceiling t...

Страница 99: ...ower and at a standstill A manual start command is also required for this process see chapter 7 4 Main switch emergency stop switch Here are some important points to consider which could cause problem...

Страница 100: ...sheet WARNING Observe and follow safety instructions of chapter 2 3 Indications for mini mizing specific hazards and safety instructions of the frequency converter manufacturer supplied by EUROCLIMA...

Страница 101: ...crease after start 1 30 s 3 42 Speed decrease after stop 1 30 s 4 Limits Warnings 4 10 Motor rotation direction 0 Only clockwise 4 12 Minimum frequency 15 Hz 4 14 Maximum frequency Hz According to AHU...

Страница 102: ...low rate can be determined from the pressure signal Airflow rate calculation Airflow rate calculation V Nominal airflow rate m h V Nominal airflow rate m h KA KA factor for formula A m s h kB kB facto...

Страница 103: ...Fan execution Displays in pcs Measuring points Total air flow rate 2 fans 50 50 1 display Only the fan near est to the operating side Displayed value 2 2 fans 100 100 2 displays Both fans sepa rately...

Страница 104: ...must be filled with the supplied test liquid bottle of density 1 kg l If a differential pressure switch is mounted option or is it installed on site then it is to be set to the final pressure drop In...

Страница 105: ...midifier General indications Check the proper installation of the PVC fins and droplet eliminator The arrow must point in direction of airflow Figure 203 Fins made from cellulose material can initiall...

Страница 106: ...rbons preferably R407C and R134a These are also known as safety refrigerants safety group A1 according to EN378 part 1 in con trast to flammable refrigerants such as Propane or toxic refrigerants such...

Страница 107: ...mpers The Fan might not work against closed dampers In addition the actual power consumption of all phases shall be measured and compared with the nameplate If the actual power consumption is too high...

Страница 108: ...the consumption is too high the effective diameter has to be adjusted again The nominal current shown on the nameplate must not be exceeded Determination of frequency converter caused problems It can...

Страница 109: ...nge can be suppressed For that purpose the appropriate setting of the software must be done at the commissioning process 9 Maintenance EUROCLIMA AHUs are built mostly maintenance free and are easy to...

Страница 110: ...ecified AHU execution performing checks maintenance and repair work in compliance to specifications according to VDI 6022 sheet 1 re quirements regarding operation and maintenance 9 1 Electrical conne...

Страница 111: ...sual inspection Check the protection grid Fan in and or outlet if available for correct installation damaged visual inspection Check the drain if available for functionality Test the wheel by rotating...

Страница 112: ...onsumption which must not exceed the rated current stipulated on the nameplate Motor bearings In case of irregular or unusual sounds the corresponding bearing must be replaced Small and medium sized m...

Страница 113: ...unfavorable conditions include high temperatures and inade quate filtered air and thus formation of deposits Check the V belt drive for dirt damage wear tension and alignment visible inspection Belts...

Страница 114: ...then turning the adjustment screws make the necessary adjustment It is important to maintain the alignment of the discs accordingly Figure 214 and Table 20 This should be checked after each tensioning...

Страница 115: ...t tension of the belt is obtained through adjustment in compliance with the tensioning data which is calculated separately for each drive The necessary information to guide the worker in the tensionin...

Страница 116: ...t On multi groove pulleys all belts must be replaced simultaneously Ensure that the belt number coincides with the number of pulley grooves When tensioning the belt on multi groove drives ensure that...

Страница 117: ...lters cleanable The contamination level of the filter can be controlled by the differ ential pressure drop check every 14 days to 1 month When reaching the pressure difference in dicated in the techni...

Страница 118: ...and cleaned if neces sary The piping is to be checked for leaks and integrity Cleaning Cleaning is to be carried out on the mounted state with a strong vacuum cleaner from the dust air side For strong...

Страница 119: ...usly The following instructions are generally stated and apply as far as the respective component is available in the present humidification system The maintenance of the pump must be carried out acco...

Страница 120: ...aporative humidifiers The instructions of chapter 9 5 1 are to be applied analogously The float valve has to close securely at a water level of 15 20 mm below the overflow to en sure bubble free sucti...

Страница 121: ...ves paper etc 9 10 Energy recovery systems The manual of the component manufacturer must be read and followed when undertaking cleaning works 9 10 1 Plate heat exchangers Plate heat exchangers are mad...

Страница 122: ...ehold cleaning detergent If bypass dampers exist please refer to chapter 9 7 Dampers 9 10 4 Accublocks Electrical connection The Accublock is supplied including a controller supplied loosely configure...

Страница 123: ...agents are allowed 9 11 Refrigeration circuit To make sure that the environmental requirements are implemented and that the operational relia bility and a long lifetime of refrigeration circuit is en...

Страница 124: ...e compressor manufacturer These instructions are supplied by EUROCLIMA or can be ordered from EUROCLIMA Filter drier Each refrigeration circuit is equipped with a filter drier If the refrigeration cir...

Страница 125: ...ise Have a look for oil leakage on components and joints Have a look at corrosion around piping of the refrigeration circuit if necessary spraying again with acrylic varnish Air cooled condenser direc...

Страница 126: ...CLIMA recommends as cleaning agent Allrain or Multirain as disinfectant Sanosil or Sanirain of Hygan 9 13 Maintenance plan The maintenance intervals specified in Table 21 are based on empirical values...

Страница 127: ...ter steam Electric heater Ch Cl E heater X 9 4 3 Electric Heater Check e heater section for thermal damages after mains supply failure Humidifier Ch M Pump X 9 5 1 General indications Ch Cl Decalcify...

Страница 128: ...nformity to ATEX The technical documentation in accordance with EU Directive 2014 34 EU is deposited at T V South Germany The declaration of conformity to ATEX applies only to the original delivery AH...

Страница 129: ...Examples of applications II 3G Ex h IIB T3 Gc inside The AHUs are designed for processing and transport of explosive atmospheres of Zone 2 but not for installation in Zone 2 Equipment in this category...

Страница 130: ...as air mixture or steam air mixture or fog 2 Explosive atmos phere rarely and only for a short time Gc Safety in normal operation 1 D Dust air mixture 20 Explosive atmo sphere perman ently present Da...

Страница 131: ...g special explosive atmosphere Use of AHUs in appropriate design possible Table 23 Temperature classes and explosion groups for gases Maximum surface temperature for dust For combustible dusts no cla...

Страница 132: ...source Outdoor AHUs must be equipped with a professional lightning protection system and all metal parts must be connected to the ground conductors It must be ensured that parts that are necessary to...

Страница 133: ...avoid deposits of combustible dusts as far as possible Therefore for all components corresponding service openings are provided The AHU must be cleaned at regular intervals to prevent dust deposits H...

Страница 134: ...arger components against tipping over Use of appropriate scaffolds and load carrying equipment The AHU components must be raised with suitable load carrying equipment e g strop belt with hook or sheke...

Страница 135: ...delines for the disassembly and instructions for the disposal can be found in the appropriate previous chapters of this instruction manual or on the homepage of the component manufacturer De tailed in...

Страница 136: ...he monobloc crane lifting lug at the counter frame 32 Figure 26 Fixing of the metal sheet and the monobloc crane lifting lug with nuts 32 Figure 27 Monobloc crane lifting lugs mounted 32 Figure 28 Ass...

Страница 137: ...pping screw 6 3 x 22 49 Figure 79 Connection of two units on top of each other 49 Figure 80 Self tapping screw 6 3 x 22 49 Figure 81 Connection frame and partition wall not screwed yet 49 Figure 82 Sc...

Страница 138: ...n characterized by a sheet metal position indicator 62 Figure 135 Closed position characterized by a marking on the gear wheel 62 Figure 136 Pulling out the filters 63 Figure 137 Pull out mechanism 63...

Страница 139: ...marking of housing fans 88 Figure 189 Rotation marking of EC fans 88 Figure 190 Main switch 90 Figure 191 Thermostat with cover cap on the reset button 92 Figure 192 Thermostat with uncovered reset bu...

Страница 140: ...Multi groove pulleys attaching the belts 115 Figure 218 Extract filter section of technical data 116 Figure 219 Warning message filter 116 Figure 220 Cleaning of air coolers 117 Figure 221 Scheme of a...

Страница 141: ...on the screw distances 82 Table 11 Torques for the motor terminal board 88 Table 12 Tightening torque for variable pulleys 98 Table 13 Parameters for Danfoss frequency converter FC102 100 Table 14 For...

Страница 142: ...ma com work in progress Euroclima India Pvt Ltd Gut No 45 65 1 Khaire Ambiwal Kudus Khaire Ambiwali Road Taluka 421 303 Wada INDIA Tel 91 22 4015 8934 info euroclima in www euroclima com Euroclima App...

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