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8 - MAINTENANCE

 

 

WITH WATER CIRCULATION: 

1.  Stop the electric pump 

2.  Close the water shut-off valve 

3.  Open the drain pipe, so as to empty the water tanks 

4.  Remove the stainless steel water filter from the pump hol-

der and clean using an ordinary brush 

5.  Remove the wet deck from the unit 

6.  Remove the casing panel corresponding to the humidifier 

7.  Remove the water distributor and the wet deck system 

8.  Remove the side panels  

WITH RUN-THROUGH WATER: 

1.  Close the water shut-off valve 

2.  Remove the wet deck from the unit 

3.  Remove the casing panel corresponding to the humidifier 

4.  Remove the side panel  

5.  Remove the wet deck 

The duration over time and the absence of faults depends on 

constant cleaning, the frequency of which depends on various 

different factors: 

 

the concentration of dust in the air. 

 

the hardness of the water. 

 

the type of operation, run-through water or circulation. 

 

discontinuous operation. 

The wet deck and the honeycomb distributor are assembled 

on the unit using parts in commercially-available sizes: mm 

600x1000. 

For the wet deck to dry, the fan must continue running when 

the humidification function is off, allowing the flow of air to e-

vaporate all the water in suspension. 

To clean proceed as follows: 

8.14  WET DECK HUMIDIFICATION 

The wet deck may be washed with water for any slimy 

deposits, but must be replaced in the case of lime scale 

deposits. 

Remove the upper panel of the honeycomb distributor end 

clean it using steel pins for the holes. 

Wash the inside of the tank and the various components. 

! The wet decks must be fitted in the exact correct position in 

the humidifier. 

The air and water flow in a specific direction (counter-current). 

Incorrect positioning affects correct operation (see the section 

"Reception/Positioning"). 

When restarting the humidifier, check correct operation. 

8.15  SPRAY NOZZLE HUMIDIFICATION 

To clean, proceed as follows: 

 

Cleaning should be performed monthly. 

 

Check if the spray from the nozzles forms a regular cone, 

otherwise clean the nozzles by removing the cover and 

cleaning the holes from any impurities using a simple steel 

pin. The nozzles applied to the rod are easy to change. 

Check the rubber gasket. 

 

Clean the stainless steel water filter screwed onto the 

intake pipe. This is normally replaced annually. 

 

At the start and at the end of the operating period, use a 

brush and a spatula to clean the tank from slurry, with the 

aid of water and detergent. 

 

If there are deposits on the fins of the drift eliminators, 

clean these using a spatula and brush. 

 

If required, remove the fins on the eliminator. 

8.16  ATOMISED WATER HUMIDIFICATION 

Systematic preventative maintenance should be performed at 

weekly intervals, keeping in mind the hardness of the water 

used. 

Check if there is reverse osmosis filtering system 

 

Once a year remove and clean the nozzles, immersing 

them in a solution of water and acetic acid to eliminate any 

lime scale deposits. 

 

At least once a year vent the connection pipe, to eliminate 

any sediments, traces of oil and dirt. 

Refer to the maintenance manual provided by the 

manufacturer of the humidifier. 

Summary of Contents for AQX CLA Series

Page 1: ...Installation use and maintenance manual AQX CLA 1 32 Modular air handling units MU14B006GB 01 19 01 2015...

Page 2: ...im is that to offer its customers developed systems that assure the best comfort reduce energy consumptions and installation and maintenance costs for the entire life span of the system With this manu...

Page 3: ...connections 15 6 Electric connections 16 7 Start up 20 8 Maintenance 23 9 Troubleshooting 27 10 Technical information 29 11 Disposal 30 12 Residue risks 31 TABLE OF CONTENTS The data contained in this...

Page 4: ...ety standards Periodical checks Carry out periodical checks to identify any loose damaged or broken parts The lack in repair entails the risk of damages to things and personal injuries Fault Malfuncti...

Page 5: ...xxxxxx the year of manufacture the wiring diagram number electrical data manufacturer logo and address Serial number Unambiguously identifies each machine Enables identifying the specific spare parts...

Page 6: ...t document and write the wording Collection with reserve for evident shortages damages due to transport notices via fax and with registered letter with acknowledgement receipt to carrier and supplier...

Page 7: ...accumulating obstructing the coils Avoid places that may be subject to floodings Install the unit lifted from the ground Protect the unit with suitable fence in order to avoid access to unauthorised...

Page 8: ...Special attention should be paid when fitting the gasket use silicon to ensure a perfect seal where required 1 Joint protection ABS 2 Roof 4 Aluminium frame 5 Base 6 Waterproofing 7 Support base 4 5 6...

Page 9: ...t the gaskets and the silicon seals prevent the by pass of air Check that the air by pass damper if present is working perfectly so as to ensure complete closing 3 5 HEAT RECOVERY UNITS STATIC CROSS F...

Page 10: ...nd exit of the main elements facilitate inspection and maintenance AN AIR BLEED VALVE installed in all of the highest points of the system allowing the venting of the circuits air DRAINAGE TAPS instal...

Page 11: ...vertical pipes When connecting to the supply mains refer to the previous precautions and comments In order to avoid damage to the coil water hammer special attention should be paid to the sizing and t...

Page 12: ...level of water is around 15mm below the overflow Check after 5 minutes of operation that the wet deck is completely wet When new the wet deck will release foam for a short time only The evaporation o...

Page 13: ...ct traps will cause air to flow up through the drain and thus make it difficult to discharge the condensate which as a result will overflow into the adjacent sections and leak from the air conditioner...

Page 14: ...hus incorrect draining of the tank p H S T p pressure in the tank being drained in mm wc 1 mm wc 9 81 Pa T vertical distance between the lower edge of the tank drain and the upper edge of the first lo...

Page 15: ...e air Thermally isolate the channels and the flanges to avoid energy losses and forming of condensation DIFFUSERS INLETS GRILLES A correct diffusion of the air in the room is determining for the level...

Page 16: ...cable and signal Lay the cables away from the power lines with different voltage or that emit interferences of electromagnetic origin Avoid laying the cables near the equipment that can create electr...

Page 17: ...upply terminal Y to X and to Z star connection Operation terminals U V W to the three phase supply terminal U to Z V to X and W to Z delta connection Single start with switch Dahlander Switch connecti...

Page 18: ...42 80 22 44 180 L 10 16 40 52 100 30 59 200 L 16 25 52 65 125 37 71 225 S 25 35 60 75 160 45 86 225 M 35 50 72 100 200 55 104 250 M 50 70 72 100 200 75 144 280 S 70 120 102 170 250 90 172 280 M 95 150...

Page 19: ...Check the power input 6 9 SPRAY NOZZLE HUMIDIFICATION Check the mains have features conform with the data reported on the matriculation plate Connect the electric pump to the mains power supply using...

Page 20: ...the limits can entail irreversible damages L1 L2 L3 388V 379V 377V 388 379 377 3 381 A MAX A 388 381 7 S 7 A x 100 1 83 OK 1 2 3 Only with hot water coil humidifier options 1 Find out if before connec...

Page 21: ...s enclosed a complete series of documents inside the filter electrical panel including wiring diagrams instructions for connections to the equipment etc Caution the bag filters absolute or activated c...

Page 22: ...e circuit and thus the overloading of the electric motor Vice versa low input indicates poor air flow due to higher pressure drops than envisaged To normalise the system adjust the transmission to var...

Page 23: ...erstandings and be able to use the system when required 8 4 Stand by i i 8 5 DAMPERS Extruded aluminium with nylon gears This type of damper does not require lubrication but simply normal cleaning as...

Page 24: ...nium stainless steel The counter frame is fitted with a gasket glued to the lip of the filter support so as to ensure perfect air tightness and prevent any by pass The filtering cell is fastened to th...

Page 25: ...t using steel pins for the holes Wash the inside of the tank and the various components The wet decks must be fitted in the exact correct position in the humidifier The air and water flow in a specifi...

Page 26: ...The deterioration of the bearings is signalled by an increase in noise and the overheating of the bearings with the release of liquid grease 8 18 PULLEYS The transmission pulleys are fitted to the sh...

Page 27: ...hroud Vibration of the damper fins Howling due to vibration of the ducts baffles outlets diffusers Fan pumping excessive back pressure in respect to the flow rate Excessive air flow rate POOR COIL HEA...

Page 28: ...PACITY Insufficient temperature or flow rate of the thermal carrier fluid Reduced air flow rate Air in the coil Vent Automatic control malfunctioning Condensate discharge malfunctioning steam coils EX...

Page 29: ...anical strength of the casing D1 D1 Air tightness of casing 400 Pa L1 L2 Air tightness of casing 700 Pa L1 L2 Filter bypass F9 F9 Transfer factor T2 T3 Heat bridge factor TB3 TB3 Frequency Hz 125 250...

Page 30: ...in the residue risks section If necessary additional information to that listed below can be requested from the manufacturer distributor importer as responsible for the collection treatment of waste d...

Page 31: ...g the correct fastening of all fastening screws of the panelling can cause damages to things persons or the unit itself Periodically check closing of all panels and their correct fastening In the even...

Page 32: ...info clivetcomercial com CLIVET ESPA A S A U Service and Maintenance Division Calle Real de Burgos N 12 28860 Paracuellos del Jarama Madrid Espa a Tel 34 91 6658280 Fax 34 91 6657806 info clivet es CL...

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