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MIUM0018_REV06_ QRCE_20180312-MIUM-ENG-AQ AQ_001523_02_0721

25

ENG

8.1 Failure searching and problem solving schedule

The follow table suggests possible solutions to face possible common detected failures; to solve errors or alarm conditions
visualized by remote user interface, read Control Manual.

Detected failure

Possible reason

Possible solution

Fans are not running

•

No power supply

•

Electrical connections wrong or loose

•

Thermal protection on

•

Fan speed signal missing

•

Switch on power supply

•

Restore

the

right

electrical

connections

•

Check the input current

•

Check

signal

connection

and

setting

Insufficient airflow

•

Air filter dirty

•

Air duct clogged

•

Fan signal too low

•

Replace filter

•

Check air plant (dampers closed ?)

•

Adjust fan signal

Insufficient

heating/cooling

performance

•

Temperature setpoint not right

•

Heat transfer fluid rate not right

•

Heat transfer fluid temperature not
right

•

Airflow too low

•

Defrost mode on

•

Adjust temperature setpoint

•

Ensure the right fluid rate

•

Ensure the right fluid temperature

•

See above

•

Wait for defrost cycle end

Condensate discharge failed

•

Discharge point clogged

•

Drain trap missing or not suitable

•

Vacate the discharge point

•

Install suitable drain trap

9

–

M

ATERIAL

D

ISPOSAL

At the end of unit’s lifetime, its components must be dismantled and disposed of respecting the operational regulations
present in its country of installation.
The main materials used for building the unit are :

-

Precoated galvanized steel sheet metal

-

Galvanized steel sheet metal

-

Aluminum

-

Copper

-

Polyester

-

Polyethylene

-

Glass wool

-

Plastic

During disconnection of the unit, avoid gas leakage or liquid spillage on environment, especially if the water has additives
like glycol. For dismissing and disposal, deliver the units to specialized centers according to your national laws.

AERAULIQA SRL
Registered office: via Mario Calderara 39/41, 25018 Montichiari, Brescia
Warehouse - Offices: via Mario Calderara 39/41, 25018 Montichiari, Brescia
Tel 030 674681 fax 030 6872149
www.aerauliqa.com

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Содержание QRCE 1000

Страница 1: ..._001523_02_0721 1 ENG INSTALLATION OPERATION AND MAINTENANCE MANUAL VENTILATION UNIT WITH HIGH EFFICIENCY HEAT RECOVERY SERIES QRCE The data of this manual may be subject to updating We reserve the right to make modification without prior notice ...

Страница 2: ...ed technologies The CE mark guarantees that the machine meets the European Standards regarding safety The qualitative level is kept under constant surveillance Aerauliqa products therefore offer SAFETY QUALITY and RELIABILITY The manufacturer declines all responsibility for any inaccuracies in this manual due to printing or typing errors The manufacturer reserves the right to modify the products c...

Страница 3: ...HOCK ATTENTION AUTHORIZED PERSONNEL ONLY 1 INTRODUCTION pag 4 2 DIMENSIONS AND WEIGHTS pag 5 3 HANDLING TRANSPORT AND STORAGE pag 8 4 INSTALLATION CONNECTION pag 9 5 WIRING DIAGRAMS pag 19 6 ELECTRONIC CONTROL pag 19 7 SCHEDULED AND NOT SCHEDULED MAINTENANCE pag 19 8 TROUBLESHOOTING pag 25 9 MATERIAL DISPOSAL pag 25 ...

Страница 4: ...h can irreparably damage their components and structures Working environment shall be characterized by air temperature not lower than 20 C and not higher than 45 C and by relative humidity not higher than 95 For special or out of range applications first contact Aerauliqa for a feasibility analysis This unit in its basic configuration is essentially composed of fig 1 1 supply and exhaust EC fan 2 ...

Страница 5: ...ognized by the manufacturer and using genuine spare parts The manufacturer also declines all liability for any damage to persons or property deriving from failure of the information in this manual to correspond to the actual machine in your possession Proper use forced air renewal with heat recovery in working environment as previously specified Any use differing from this proper use or beyond the...

Страница 6: ...nel Model 500 1000 1500 2000 3000 4000 L mm 1350 1470 1850 1850 2150 2150 W mm 680 820 1030 1460 1460 1840 H mm 330 370 455 455 590 590 W1 mm 760 900 1110 1540 1540 1920 X mm 230 300 390 600 590 780 Y mm 225 265 350 350 485 485 E mm 52 5 52 5 52 5 52 5 52 5 52 5 F mm 46 46 46 46 55 55 G mm 128 130 158 170 170 170 D1 mm 1 2 M D2 mm 3 4 M 3 4 M 3 4 M 3 4 M 1 M 1 M L1 mm 350 400 400 400 502 502 L2 mm...

Страница 7: ...the electrical panel Model 500 1000 1500 2000 3000 4000 L mm 1350 1470 1850 1850 2150 2150 H mm 680 820 1030 1460 1460 1840 W mm 330 370 455 455 590 590 X mm 230 300 390 600 590 780 Y mm 225 265 350 350 485 485 E mm 52 5 52 5 52 5 52 5 52 5 52 5 F mm 46 46 46 46 55 55 G mm 128 130 158 170 170 170 D1 mm 1 2 M D2 mm 3 4 M 3 4 M 3 4 M 3 4 M 1 M 1 M L1 mm 350 400 400 400 502 502 L2 mm 340 380 460 460 ...

Страница 8: ... without control Check the weight of the unit before moving and handling Handle the packed unit with care and avoid shocks and jolts they may damage functional parts of the unit To safeguard persons and property read the information on the packing that covers the unit before handling Also make sure to Handle the unit to the installation place or to the store with the packaging intact Do not stack ...

Страница 9: ...machinery and in turn due to this are capable of solving major dilemmas Safety regulations Qualified personnel must carry out the installation During the installation operation use protective clothing During the installation operate in absolute security pollution free air and in an area free of obstructions Respect the regulations in force in the country in which the apparatus is being installed S...

Страница 10: ... and its possible optional sections to the installation place as close as possible Do not put tools or weights inside the unit or on the top of it In case of vertical version unit is anyway delivered as horizontally layed on bench and provided with separate support feet assembling kit washers and M6 bolts that need 5 mm Allen key these feet shall be preventively bolted on the side of the unit as s...

Страница 11: ...t put the roof cover on the top panels and by reusing all the screws and the rubber washers supplied together with the roof cover fix the roof cover fig 4b 4 3 Requirements of the place of installation and installation of basic unit Framework supporting the unit and its possible options shall be suitable to to support the whole weight position of supporting points horizontal version are shown on f...

Страница 12: ...charge may occur easily give a 3 min slope towards the point of water discharge this requirement applies to both horizontal and vertical version Leave minimum gap spaces as shown on following figg 6 and 7 They are needed for fully accessibility to the unit in order to carry out all services in safety condition Fig 6 Fig 7 ...

Страница 13: ...de filter panel may be removed and remounted easily If not adjust opportunely the tightening on the bars For vertical version unit fix the supporting feet to the floor or to the supporting framework by interposing an antivibration layer fig 9 if adjacent to a vertical wall it is also suggested to block the upper bracket on it once moved on the opposite side to that of access doors see previous fig...

Страница 14: ... placed on the coupling side fig 9a For mounting roof cover elements preventively unscrew the M6 screws by a 5 mm Allen key A in fig 9b further on vertical unit the upper bracket B shall be removed As first place the intermediate roof cover plate fix it by screwing the same M6 screws preventively provided with the special rubber washers supplied together with the roof covers The jointing side of e...

Страница 15: ... in symmetrical positions by using self drilling screws kit fig 10 This operation must be carried out before installing the unit Previously apply the gasket supplied apart to be mounted on the side of the external section to be coupled to the basic unit fig 10 For horizontal version section use M8 threaded bars or similar crossing each supporting point of the section bracket always interpose vibra...

Страница 16: ...ic pressure at duty airflow rate take also into account the air pressure drop of possible options In order to prevent water condensation and to reduce noise to the rooms it is strongly suggested to install insulated air ducts or provide a duct insulation Consider the need to install sound attenuators depending on unit sound level and the required acoustic comfort of the room to be treated Between ...

Страница 17: ...ng of the piping is an operation that must be done correctly otherwise it may compromise the performance of the system At worst it may cause irreversible damage to the machine These operations are to be effectuated by qualified personnel 4 7 1 Condensation outlet connection QRCE CCS CDX Provide each point of condensation discharge with suitable drain trap that shall be filled with water before sta...

Страница 18: ...ree from moisture Freon coil is provided with welded plugs and filled and pressurized by nitrogen the upper plug is covered by insulation it shall not be connected to the refrigerant circuit but sealed permanently while removing the plugs be sure that coil is still pressurized otherwise it could have leakage points In this event do not repair the coil by yourself but ask for a spare section Go on ...

Страница 19: ...ct information and data to understand the efficiency of the unit and prevent failures We suggest to prepare a booklet of installation according European legislation Provide a machine book that allows you to track of the actions taken on the unit so it will be easier to cadence adequately the various interventions and will facilitate a possible troubleshooting Please take note of date type of actio...

Страница 20: ... open the slipping of filter elements is prevented by a filter locking plate to be turned 90 use a Phillips head screwdriver after remounting filter elements turn the locking plate in the opposite direction to the contact with filter frame then block it fig 12c Fig 12a Fig 12b Fig 12c ...

Страница 21: ...For vertical unit once unscrewed directly move the panel upwards As standard equipment unit is provided with compact filters F7 class efficiency on fresh air intake M5 class efficiency on return air intake they are not cleanable therefore when dirty they shall be replaced with new ones Filters to be replaced shall be suitably packaged and brought to the nearest waste disposal For an automatic chec...

Страница 22: ...reviously described for filter by using hinged doors only figg 12a and 12b check the perfect cleaning and the free rotation of the impeller 7 3 Not scheduled maintenance 7 3 1 Removal and replacement of the fan Enter fan section by the hinged door and unhook the fast plug use 5 mm Allen key for unscrewing screwing Operate as described below fig 14 1 remove the fan stirrup A placed close to the doo...

Страница 23: ...ame of the by pass device to the unit internal frame 3 dismount and remove the middle panel by front side for about 20 cm by pass device is installed on it and connected to the unit electric box by a cable fitted with fast plug on the actuator To replace by pass actuator or to check the whole by pass system preventively unhook the 7 pole faston fast plug placed on the actuator Pay attention that t...

Страница 24: ...tal unit one for vertical unit placed on the frame of the electric heater and they can be approachable by the end filter panels fig 17 to facilitate this service a screwdriver can be used In case of replacing of the heater operate as follows 1 remove the middle panel also 2 disconnect the heater by the fast connector 3 by 5 mm Allen key remove the closure element of the sliding guide of the heater...

Страница 25: ...w too low Defrost mode on Adjust temperature setpoint Ensure the right fluid rate Ensure the right fluid temperature See above Wait for defrost cycle end Condensate discharge failed Discharge point clogged Drain trap missing or not suitable Vacate the discharge point Install suitable drain trap 9 MATERIAL DISPOSAL At the end of unit s lifetime its components must be dismantled and disposed of resp...

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