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Operation and maintenance  

Envistar Compact 

DSEC181201.00.EN

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

5  Wiring instructions and fuse protection

5.1  MX – Complete control equipment and UC – Complete electrical 

connection to terminal (without DUC).

Applies to:

•   units supplied prewired with complete, integrated  Siemens Climatix control 

equipment (code MX).

•   units supplied without process unit (DUC) but with sensor and damper ac-

tuator connected electrically to the terminal (code UC). Fans and heat ex-

changers are fused and connected electrically to the terminal. The terminal 

connections are positioned at a shared place in the unit. For further con-

nection to an external process unit, we recommend using a multi-conductor 

cable.

 

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 Documentation at 

docs.ivprodukt.com

 (Technical Data and Control 

Diagram), or the product program IV Produkt Designer.

5.2  MK – Fans and heat exchangers electrically connected to terminal

For units supplied without control equipment but with fans and heat exchangers 

connected electrically to terminals (code MK). 

Connections to terminal blocks are located on each unit section.

For wiring instructions and recommended fuses, refer to Order Unique Docu-

mentation at 

docs.ivprodukt.com

 (Terminal Connection and Technical Data).

 

Safety switch

A safety switch must be fitted and wired on each power supply.

Summary of Contents for Envistar Compact Series

Page 1: ...Operation and maintenance Translation of the original instructions Order number Project Air Handling Unit Envistar Compact and Home Concept FTX Compact 04 16 Envistar Compact ...

Page 2: ......

Page 3: ...5 ePM1 50 F7 Aluminium filter AL Excl filter 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 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 ...

Page 4: ...nations 3 2 4 CE marking and EU Declaration of Conformity 4 2 5 Maintenance 5 2 6 Handling of refrigerant 5 2 7 Extended warranty 6 2 8 Spare parts 6 2 9 Dismantling and decommissioning 6 3 Technical description 7 3 1 Envistar Compact air handling unit 7 3 2 Home Concept 7 4 Function 8 4 1 Cooling circuit 8 4 2 Controlling the StarCooler cooling unit code ACEC 9 Table of Contents ...

Page 5: ... 2 Actions in case of standstill 12 6 3 Commissioning 13 7 Maintenance instructions 14 7 1 Service schedule 14 7 2 Filter code ACEF 16 7 3 Rotary heat exchanger code ACRR 20 7 4 Air heater water ECET VV and Thermoguard ECET TV 23 7 5 Air heater electric code ECET EV 25 7 6 Air cooler water code ESET VK Air cooler for direct expansion code ECET DX 26 7 7 Fan unit 27 7 8 Damper code ECET UM ECET TR ...

Page 6: ...e 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 minutes 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 doors ...

Page 7: ...ations 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 front The model type plate shows the series number and the requisite designations to identify the unit Kodnyckel Code key Beteckning Project name Ordernummer Order number Max varv Ma...

Page 8: ... ivprodukt com The CE marking applies to units that IV Produkt AB manufactures and supplies in the form of a unit without additional control equipment For the CE marking of IV products to apply the applicable requirements of the EU Machinery Directive 2006 42 EC and related directives for control equipment shall be met when installed for the unit 0 1 Art Nr 19194 0001_01 1 2 3 180s Typical CE labe...

Page 9: ...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 applies to compact...

Page 10: ...nty a complete documented and signed 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 Order Uni...

Page 11: ... 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 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...

Page 12: ...nside the evaporator position 8 the refrigerant absorbs the heat required for phase transformation The heat is taken from the supply air which is thus cooled The cold refrigerant in gaseous form is drawn back into the compressor position 1 where it is compressed and thus heated The gas is also used for cooling the compressor s electric motor The refrigerant now contains both the heat from the supp...

Page 13: ...ion In the 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 ...

Page 14: ... 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 Documentation at ...

Page 15: ... 10 V RS 485 Modbus D1 24 V Brandfunktion Fire mode LARM Bryter vid larm ALARM Opens when triggered Ref Vit White Brun Brown Grå Grey Rosa Pink Gul Yellow Grön Green Rotary heat exchanger code ACRR 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 Air heater electric code ECET EV For power supply ou...

Page 16: ... design of the duct system and the settings configuration of the control system e g soft start of fans open damper when the fans are in opera tion 6 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 from the cooling c...

Page 17: ...k inspection by a certified cooling technician The validity of the product warranty is conditional on the system having been correctly commissioned 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 qualifie...

Page 18: ...xtract air ACEF Check pressure drop Change filter if necessary 14 signature signature signature signature Rotary heat exchanger ACRR Visual inspection Check press balance Check diff pressure 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 el...

Page 19: ... in operation or every 6th month depending on which occurs first More frequent servic ing may be required in certain environments Home Concept For the Home Concept version Service year 20 for unit no Service performed date and signature Functional section Code Recommended ac tion insp Page ref 3000 h 6 mths 6000 h 12 mths 9000 h 18 mths 12 000 h 24 mths date date date date AL Aluminium filter in f...

Page 20: ...ltration efficiency The filters are designed for one time use If they become fouled the unit will lose capacity The filters should there fore be changed if the pressure drop across them ex ceeds the specified final pressure drop It is important to stop the unit before changing filters to prevent dust from coming loose and being drawn into the unit The inside surfaces of the filter sections should ...

Page 21: ...ed with integrated control equipment code MX are equipped with the filter control function FLC Filter Lifetime Control FLC indicates when it is time to replace the carbon filter Indication is through an alarm on the hand held terminal display FLC calculates the volume of air passing through the carbon filters and triggers the alarm for filter replacement when the preset value has been reached The ...

Page 22: ...ge in Home Concept version Pressure drops are measured with a pressure gauge connected to the measurement outlets The measurement outlets are connected to each side of the filter xx Pa xx Pa If the filter has reached its specified final pressure drop it should be changed The final pressure drop is specified on the filter section decal filled in when the air handling unit is put into operation Also...

Page 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 cabi nets 6 Install the new filter press in the eccentric rails to engage them and close the inspec tion door 7 Reset the FLC filter...

Page 24: ... inspected or adjusted For units supplied with inte grated control equipment the function is connected and activated at the factory For units not supplied with control equipment this function has to be connected to the unit Inspection 1 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 u...

Page 25: ...wnstream supply air fan generates negative pressure in relation to the atmospheric pressure atm e g 100 Pa P3 Downstream extract air fan and any trim damper generate greater negative pressure than at P2 e g 125 Pa 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 ratios the purging sector may...

Page 26: ...st 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 closer to the rotor than 5 10 mm A hygroscopic...

Page 27: ...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 opening 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 batte...

Page 28: ...nues to leak you will have to replace it with a new one of the same type and with the same opening pressure 2 Any shut off valves on the supply or return lines may not be closed if freez ing 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 it is often sufficient to run heat reco...

Page 29: ...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...

Page 30: ...ration 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 op eration 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 If the fins on the batteries are dirty clean them by ...

Page 31: ...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 ...

Page 32: ... that the fan impeller with motor position 5 is firmly mounted in the upper fan support position 7 and that it has not shifted sideways toward the inlet cone position 6 Also check to make sure that the inlet cone is properly secured 5 The fan unit is mounted on the connection plate by means of rubber anti vibra tion mountings position 3 between the lower fan support position 8 and the anti vibrati...

Page 33: ...0 70 0 80 0 90 1 00 1 10 50 100 200 150 250 300 450 350 400 500 Art NR 19121 1201 Example of air flow label Cleaning 1 Follow item 1 under Inspection 2 Wipe the fan impeller blades to remove any coatings Use a mild alkaline detergent 3 The external surfaces of the motor must be kept clean Remove any dust dirt and oil Clean with a dry cloth In the event of stubborn dirt use a mild alkaline detergen...

Page 34: ... bearings are damaged and service is then required 4 The fan impeller and motor are mounted on a support fitted with rubber anti vibration mountings Check that the anti vibration mountings are securely mounted and are intact 5 Check the mounting bolts as well as the suspension devices and support 6 Check that the gasket on the connection plate around the connection open ing is intact and is firmly...

Page 35: ...faces of the motor must be kept clean from dust dirt and oil Clean with a dry cloth In the event of stubborn dirt use a mild alkaline detergent The motor is likely to overheat inside if thick layers of dirt prevent air from entering the motor to cool the stator structure 4 Vacuum clean the air handling unit so that particles will not be blown out into the duct system 5 Clean the other parts in the...

Page 36: ...e 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 Check the dampers for tightness when ...

Page 37: ...und attenuator code ECET LD Size 04 Sizes 06 10 and 16 The purpose of the sound attenuator is to reduce the sound power 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 ...

Page 38: ...e inspec tion and registration see 2 6 Handling of refrigerant page 5 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 vacuuming from the inlet side or carefully...

Page 39: ...mpressor is not op erating Compressor is not op erating 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 leak and seal it Add more refrig eran...

Page 40: ...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 order ivprodukt se Visit our website www ivprodukt com Documentation for your unit docs ivprodukt com Technical documentation docs ivprodukt se You are welcome to contact us ...

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