WEGER WALTER GMBH DIWER EVO DP80 Series, Installation And Operating Manual

Page 1: ...INSTALLATION AND OPERATING MANUAL FOR WEGER AIR HANDLING UNITS ENGLISH Printed 02 2015 Please read carefully and keep for future reference...

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Page 3: ...RZONE 5 I 39030 KIENS EHRENBURG BZ ITALY PHONE 39 0474 565253 FAX 39 0474 565011 E mail info weger it Website www weger it Always observe all relevant standards and statutory regulations Subject to ch...

Page 4: ...power 14 2 4 5 Risks posed by dampers including air flow control and shut off dampers 14 2 4 6 Risks from process chemicals materials 15 2 4 7 Risks posed by steam heaters 15 2 4 8 Risks from hot col...

Page 5: ...tion with external corner brackets 25 5 3 2 Connection of unit sections from the inside with internal brackets 26 5 3 3 Roof joint connections for outdoor units 26 5 4 Alignment of doors 27 5 4 1 Adju...

Page 6: ...9 7 Commissioning and maintenance 40 7 1 Housing 42 7 2 Fan motor 42 7 2 1 Free running wheels 43 7 2 2 V belt drive 45 7 2 3 Flat belt drive 47 7 3 Filters 48 7 4 Heat exchanger 49 7 5 Humidifier 51...

Page 7: ...9 3 Rotary heat exchanger thermal Wheel 56 7 9 4 Heat tube 56 7 10 ATEX units 56 7 11 Test run 57 8 Shutdown and decommissioning 58 8 1 Prolonged shutdown decommissioning 58 8 2 Dismantling and dispos...

Page 8: ...l applies to the following series Series DIWER EVO DIWER EVO PU DIWER EVO DP80 DIWER TE DIWER TE PU DIWER DIWER PU Design Series Profile Panelling Insulation Sealing DIWER EVO thermally decoupled with...

Page 9: ...n versions HG hygiene WF weather proof The models of the DIWER series are also available as an ATEX unit 1 2 ATEX units In accordance with the ATEX Directive 94 9 EC units bearing the Ex mark ATEX uni...

Page 10: ...llation all electrically conductive parts must be properly earthed potential equalization in order to prevent ignition by lightning strikes Possible ignition sources Mechanically produced sparks cause...

Page 11: ...Example the air handling unit is classified as follows information on Ex rating plate Ex II 2G c IIB T4 inside Ex II 3G c IIB T3 outside Codes Ex Explosion protection class I Equipment group undergrou...

Page 12: ...embly installation and commissioning of the unit must be carried out by specially trained technicians For work on unit elements and assemblies that are not covered in this document refer to the separa...

Page 13: ...re regular inspection and maintenance by specialist technician and minimum one annual test for leakage using suitable devices Leaks must be repaired without delay Local hygiene plan Where air handling...

Page 14: ...they might cause Based on this classification they are accompanied by specific signal words and symbols High risk non compliance results in serious or even fatal injury Medium risk non compliance mig...

Page 15: ...not in operation 2 4 3 Risks posed by fans After a power failure the fan is automatically restarted when the power returns Risk of fatal injury from fan impeller Keep clear of the impeller Remove all...

Page 16: ...fully de energized Risk of electric shock with potentially fatal consequences from contact with powered components such as lighting devices of electrical parts power sockets MCR equipment and safety...

Page 17: ...om refrigerant gases released at high temperature When carrying soldering or welding work on refrigerant circuit components always wear protective gloves and breathing apparatus with filter If there i...

Page 18: ...the pipes and that the heating medium supply line is closed Risk of scalding from escaping hot water when fittings at the heat exchanger the hot water heater or the heat recovery unit are opened Befo...

Page 19: ...ts Operate the unit only with the permissible parameter settings Unloading and transport Serious damage to property from dropping loads please observe the instructions in section 3 Delivery of product...

Page 20: ...and test the damper regulation system Risk of damage to unit and ducts as unit works against closed dampers Prior to performing a test run or starting the unit close all unit doors and open the damper...

Page 21: ...All instructions on the unit and in this manual must be strictly adhered to Upon delivery inspect the product for damage caused during transport and ensure that the delivery is complete Record any da...

Page 22: ...do not place it or any of its components at an angle or upside down Keep the fan parts in an upright position to prevent shearing damage to the vibration dampers Correct installation of unit Never lif...

Page 23: ...components with spacers to prevent damage Transport the unit elements by lifting them by the crane loops provided Never attach the lifting tackle to the upper corner connections Observe figure and ab...

Page 24: ...ts The foundation must meet the relevant static and sound propagation requirements and must feature a proper drain for water It must be level and smooth The resonance frequency of the support structur...

Page 25: ...cedures VOB part C and DIN 18379 as they form part of the technical building services They are designed and produced according to best engineering practice and do not constitute part of the actual bui...

Page 26: ...your various unit elements in this manual The unit must be assembled disassembled by authorised specialist technicians in accordance with the German Industrial Health and Safety Ordinance 5 1 Prepara...

Page 27: ...e unit sections using a hammer or other heavy implement Unit elements placed on the foundation must only be shifted but not lifted To position the unit sections component properly we recommend using r...

Page 28: ...sides top and base of the sections Install 2 brackets per connection and secure them with screws A to the unit frame Tighten the screws B to pull the unit sections together Number and position of con...

Page 29: ...ld the access doors not close properly adjust the closing force at the locking lever or the hinge as required 5 4 1 Adjustment of standard locking levers The clamping piece of the locking lever can be...

Page 30: ...closing force of the door For vertical adjustment slide the clamping piece in its recess To do this loosen the screws 3 and tighten them again after adjustment Special safety doors do not feature leve...

Page 31: ...prox 30 cm long instead of clamping bars the panels are only pre assembled and the actual clamping bars are supplied separately with the unit This option is chosen in the following cases The customer...

Page 32: ...For the dismantling and assembly of pre assembled units and unit sections observe the following instructions During dismantling all unit components must be properly labelled to ensure that they can b...

Page 33: ...take suitable measures to protect the heat exchanger against vibration and the effects of thermal elongation between the air conditioning unit and the pipeline system When laying the pipes ensure that...

Page 34: ...et Dynamic effective pressure 2 x 83 Pa see data sheet Total effective pressure dynamic effective pressure Pstat 1030 Pa 1 mm hydrostatic head 9 81 Pa H 1030 9 81 15 mm 120 mm The connecting line for...

Page 35: ...f damper leaves As the leaf pivot is off centre observe the direction of rotation of the leaves when installing the damper leaf drive With incorrect direction of rotation the damper cannot be fully cl...

Page 36: ...s All work on the electrical system of the unit must be performed by qualified electricians and in compliance with the applicable international standards and statutory regulations To install the power...

Page 37: ...eed motors up to 4 0 kW are designed for direct start up Motors with a power rating of more than 4 0 kW are designed for star delta start up Multi speed motors with a power rating of more than 4 0 kW...

Page 38: ...Installation and Operating Manual Page 36 Printed 02 2015 For the installation always observe the wiring diagrams of the motor manufacturer...

Page 39: ...Installation and Operating Manual Page 37 Printed 02 2015...

Page 40: ...requency converter operation The repair switch must not be used as an ON OFF switch as it is intended only as an interval switch for maintenance purposes Before actuating this switch always shut down...

Page 41: ...arthed 6 10 Motor overload protection Protect the motor according to DIN EN 60204 DIN VDE 0113 against overload Safety fuses and automatic circuit breakers do not provide adequate protection of the mo...

Page 42: ...ust be possible to remove these components safely see DIN 1946 Remove visible dirt with an industrial vacuum cleaner dry cleaning Remove other dirt with a damp cloth If necessary use grease or oil dis...

Page 43: ...hazardous and odorous substances cannot enter the supply air Maintenance of ATEX units Air handling units bearing the Ex mark must be commissioned by authorised specialist technicians Commissioning m...

Page 44: ...rs are secured with transport securing devices marked in red These must be removed prior to commissioning Check the unit for damage dirt and corrosion and clean it if necessary Check all securing scre...

Page 45: ...on Observe the instructions of the motor manufacturer Never exceed the maximum permissible operating speed see fan impeller type plate and safety instructions The maximum permissible speed applies to...

Page 46: ...nd the conveyed medium the impeller and the housing are exposed to normal wear Deposits on the impeller can cause imbalance and thus damage risk of total failure The impeller might even rupture posing...

Page 47: ...for the proper operation of the unit The belt tension and alignment affect the service life of the belt and also of the fan motor bearings It is therefore very important that the V belt is regularly c...

Page 48: ...or on motor mounting plate with central adjusting screw b Motor on tilting rocker c Motor on rails on which it can be moved To adjust the motor position loosen the lock screws lock nuts and turn the a...

Page 49: ...on of the flat belt drive ensure the following The pulleys are clean The shafts are parallel to each other The vertices of the pulley curves must be aligned to each other The belt is running in the co...

Page 50: ...y have reached the end of their service life Change the filter according to the instructions in the applicable standards or latest when the pressure drop has reached the preset final pressure loss Imp...

Page 51: ...geration technician During maintenance check the evaporator for ice and leakage Pumped cold water pumped hot water Standard heating and cooling batteries are filled with water to which an anti freeze...

Page 52: ...h Take great care to prevent damage to the fins Remove any corrosion visible on the heat exchanger derusting sanding and cover the affected areas with zinc paint General maintenance Demister Check the...

Page 53: ...ump is maintenance free Defective pumps must be replaced For a long service life of the pump ensure the following Never let the pump run dry Prevent solids from entering the pump Avoid prolonged stand...

Page 54: ...ually required Water quality As water evaporates mineral deposits consisting mainly of calcium and magnesium are formed on the humidifier cells Over time these deposits might block the cells and conta...

Page 55: ...ust be performed at least on a monthly basis Drain 11 The drain 1 male thread must be equipped by the operator with a stop valve and siphon The siphon outlet end must be open and must feed the water t...

Page 56: ...ained off To reduce operating costs do not feed too much water to the humidifiers For proper operation it is sufficient if the contact humidifiers are properly soaked Avoid run offs To tune up humidif...

Page 57: ...English degree of hardness dH German degree of hardness 7 6 Silencer The silencer baffles are maintenance free During major overhauls check the baffles for dust and clean them with a vacuum cleaner i...

Page 58: ...rotors must be retightened every 6 months 7 9 4 Heat tube Similar to a plate heat exchanger the heat tube does not contain any moving parts Maintenance is thus limited to regular cleaning of the hous...

Page 59: ...nit and before switching it on the operator in charge of the unit must ensure that there are no persons standing inside the unit or in its danger area After all checks are completed and the unit is re...

Page 60: ...ctric power pressure temperature etc Drain the water from the heat exchanger In units with integrated control cabinet we recommend leaving the control cabinet heater switched on Turn the rotating part...

Page 61: ...x Cassette filter x x x x Envelope filter x x x x Absolute filter x x x x Automatic roll filter x x x Activated carbon filter x x x x Fins x x x Condensate tray drain x x x Demister x x x Electric hea...

Page 62: ...Installation and Operating Manual Page 60 Printed 02 2015 Notes...

Page 63: ...Installation and Operating Manual Page 61 Printed 02 2015 Notes...

Page 64: ...Installation and Operating Manual Page 62 Printed 02 2015 Notes...