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38

English 05/09

ACCURATE AX - AW - AD - AT - AF

OIL SEPARATOR

A

I

U

In the installation of air cooled units (AX-AD) with remote condenser, if the refrigerant pipeline are more than 30mt is recommended to
install an oil separator on site, in order to avoid that the oil goes away with the refrigerant causing compressor damages
Finally, the use of an oil separator leads to:
• a longer life of the compressor;
• a better performance of the whole system with consequent energy saving, due the high coefficient of condenser and evaporator perfor-

mance by almost completely removing oil deposits from their exchange surfaces;

• a quieter operation by reducing pulsations.

The oil separator have to be selected considering the following parameters:
• power cooling of refrigerant system
• refrigerant fluid type
• the inlet  diameter of oil separator have to be equal to the dicharge gas diameter of compressor 

POWER COOLING IN  kW*

*

 refered to evaporating tempe5°C and condensing temperature 40°C

The oil separators have to be installed in the discharge line between the compressor and the condenser mounted securely in a vertical
position and reasonably close to the compressor.
Oil separator performs best when operating at or near the compressor discharge temperature. In location the oil separator, choose a posi-
tion to avoid, as far as possible, chilling of the shell, which may result in condensing of liquid within the separator. If this is not possible, it is
advisable to supply the separator with the insulation or strap heater to prevent the refrigerant in the system from condensing in the shell.

Acting as the lay out of refrigerating system, the return line may be run from the oil fitting to the suction line upstream the compressor.

A sight glass may be installed in the oil line, in a position that oil is flowing through the tube, to check the correct working of the oil separa-
tor. Oil separators must be always pre-charged before its use, as described on the table, with the same oil of the compressor

Models

R410A

R407

OS 10

11,5

10

OS 30

33

29

OS 40

42

38

Frame

F1

F2

F3

F4

F5

F6

Models

7

10

15

18

20

26

29

39

30

40

50

55

60

70

80

90

OIL SEPATATOR

Models

OS10

OS30

OS40

OS30

OS40

Precharge 

0,3 lt

0,3 lt

0,3 lt

0,3 lt

0,3 lt

Содержание Accurate AD

Страница 1: ...onditioners ACCURATE AX Direct Expansion Air Cooled AW Direct Expansion Water Cooled AD Dual Fluid Air Cooled AT Dual Fluid Water Cooled AF Free Cooling Water Cooled frame 1 07 10 frame 2 15 18 frame 3 20 26 29 frame 4 39 30 40 50 frame 5 55 60 70 frame 6 80 90 ...

Страница 2: ......

Страница 3: ...Centrifugal fans regulation frame 1 2 47 Tightening the drive belts 47 Instruments and alarms 48 Calibrating the control and safety devices 49 Calibrating the pressure control valve 50 Calibrating the air flow sensor 50 Calibrating the dirty filter sensor 50 Temperature and humidity probe 51 Servomotor and hot water valve 51 Electric heaters 56 Humidifier 56 Humidifier power supply 58 Humidifier a...

Страница 4: ...r L AX_AD_air cooled x Low Temperature version LT Option 4 VERSIONS E AW_AT_AF_water cooled F AW_AT_AF_water cooled condensing control fan speed reg for BDC dry cooled H AW_AT_water cooled condensing control pressostatic valve 07 7 kw 10 10 kw 15 15 kw 18 18 kw 20 20 kw 26 26 kw 29 29 kw Options 3 CAPACITY 30 30 kw 39 39 kw 40 40 kw 50 50 kw 55 55 kw 60 60 kw 70 70 kw 80 80kw 90 90kw C ESP STD 20 ...

Страница 5: ... GSM Clock card 0 Without 1 Clogged Filter 2 Fire Detector 3 Smoke Detector 4 Fire Smoke 5 Fire Smoke Water leakage detector 6 Water leakage detector Option 15 SENSORS 7 Clogged Filter Fire Smoke 8 Clogged Filter Water leakage detector 9 Clogged Filter Smoke Fire Water leakage detector A Clogged Filter Fire Water leakage detector B Clogged Filter Smoke Water leakage detector C Clogged Filter Smoke...

Страница 6: ...sins G4 efficiency according to the CEN EN 779 stan dard with average separation efficiency 90 1 ASHRAE The fil ter is flame retardant AIR HEAT EXCHANGER Finned coil large front surface made from copper tubes expand ed mechanically onto aluminium fins with a high heat exchange surface Hydrophilic treatment to assist the drainage of conden sate The coil installed upstream of the fans for perfect ai...

Страница 7: ...dicated in the Installation manual and for ensuring the gas and oil charges where necessary WATER COOLED DIRECT EXPANSION UNIT VERSION AW All models have a single refrigerant circuit and in some cases two circuits See the DIGIT on the previous page The compressor pumps the hot refrigerant gas into the indoor condenser made from braze welded steel plates The liquid refrig erant then flows to a liqu...

Страница 8: ...ng and closing signal is generated and completely managed by the electronic controller on the air conditioner so as to maintain the desired conditions and ensure maximum energy saving DUAL FLUID UNITS VERSION AD air cooled AT water cooled All models have a single refrigerant circuit and in some cases two circuits See the DIGIT on the previous page Each refrigerant circuit includes the compressor a...

Страница 9: ...ual based on the average minimum temperature reached in the place of installation in the coldest periods The cooling fluid must be circulated by pumps not supplied as standard Suitably sized dry coolers are available as options Water circuit The unit is fitted with a 3 way modulating valve to control the flow of cooling fluid to the indoor exchanger so as to maintain the desired conditions In the ...

Страница 10: ...let plenums at the front fig 1 fig 2 fig 3 fig 4 1 OVER units with intake from the front and outlet plenum 2 OVER units with intake from the front and outlet from the top 3 OVER units with intake from under the floor and outlet from the top 4 OVER units with intake from the rear and outlet from the top 5 UNDER units with intake from the top and front outlet plenum 6 UNDER units with intake from th...

Страница 11: ...46 2 52 3 60 3 68 1 73 2 87 8 95 4 7 2 9 2 16 3 18 2 23 3 28 8 29 9 41 33 4 46 2 49 9 60 3 68 1 70 1 87 8 91 8 1 00 0 96 1 00 0 95 1 00 1 00 0 94 1 00 1 00 1 00 0 95 1 00 1 00 0 96 1 00 0 96 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 1 69 2 20 3 64 4 31 4 93 6 00 6 93 7 86 7 26 9 85 12 02 12 02 13 86 15 69 17 70 21 34 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 R407C R407C R407C R407C R407C R407C 7 9 10 1 16 1 19 3 23 7...

Страница 12: ...26 31 39 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 1 47 1 91 3 26 3 93 4 28 5 38 6 24 6 91 6 42 8 53 10 76 10 77 12 38 13 54 15 90 19 15 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 R407C R407C R407C R407C R407C R407C 7 9 10 3 16 3 19 5 23 9 29 4 32 5 44 6 34 3 47 7 54 8 65 0 72 2 77 2 90 1 100 5 7 9 9 4 16 3 18 2 23 5 28 5 30 3 44 6 34 3 47 6 50 9 65 0 69 7 71 6 89 8 93 8 1 00 0 91 1 00 0 93 0 98 0 97 0 93 1 00 1 00 1 ...

Страница 13: ... 5 70 3 76 6 91 8 101 9 22 8 28 3 30 0 46 9 36 7 47 9 50 7 66 8 71 1 88 2 92 2 0 92 0 92 0 93 0 99 0 96 0 96 0 93 0 95 0 93 0 96 0 90 1 1 1 1 2 2 2 2 2 2 2 4 40 5 40 6 11 8 00 6 44 8 61 10 55 12 28 13 30 16 03 19 33 1 1 1 1 2 2 2 2 2 2 2 4900 6330 7002 8430 7380 9810 11954 14360 16133 18120 20830 47 70 46 66 49 56 55 65 70 55 68 R407C R407C R407C R407C 24 2 31 3 32 5 45 9 37 6 49 0 54 7 71 7 77 6 ...

Страница 14: ...9 4 32 7 42 2 36 7 47 6 55 1 62 1 75 5 86 3 98 8 21 8 27 9 30 2 42 2 36 2 47 0 50 7 62 1 71 0 86 1 91 0 0 92 0 95 0 92 1 00 0 99 0 99 0 92 1 00 0 94 1 00 0 92 1 1 1 1 2 2 2 2 2 2 2 4 93 6 01 6 75 7 87 7 15 9 87 11 70 12 02 15 40 17 68 21 38 1 1 1 1 2 2 2 2 2 2 2 R407C R407C R407C R407C 23 2 30 1 32 9 43 8 36 2 46 7 55 3 64 2 77 5 90 8 99 9 22 2 28 1 30 3 43 8 36 0 46 6 50 9 64 2 71 8 87 9 91 4 0 9...

Страница 15: ... 0 96 0 96 0 93 0 95 0 93 0 96 0 90 4900 6330 7002 8430 3690 x 2 4905 x 2 5977x2 7180x2 8066x2 18120 20830 24 32 28 31 27 21 32 30 28 33 41 1 1 1 1 2 2 2 2 2 2 2 4 30 5 40 6 11 6 94 6 44 8 61 10 55 12 28 13 30 16 03 19 33 1 1 1 1 2 2 2 2 2 2 2 R407C R407C R407C R407C 24 2 31 3 32 5 45 9 37 6 49 0 54 7 71 7 77 6 92 8 101 0 22 6 28 6 30 2 45 9 36 5 47 5 50 8 67 3 71 3 88 5 91 9 0 93 0 91 0 93 1 00 0...

Страница 16: ...0 1410 1410 2520 2190 2520 2520 3450 3450 3450 3570 3570 Total pressure drops 4 kPa 15 15 30 30 16 19 19 46 36 46 46 40 40 40 27 27 Heating Capacity 6 kW 5 1 5 1 9 9 9 9 7 0 7 9 7 9 14 1 12 3 14 1 14 1 19 3 19 3 19 3 20 5 20 5 Water Flow 6 l h 890 890 1730 1730 1220 1370 1370 2460 2150 2460 2460 3350 3350 3350 3560 3560 Total pressure drops 6 kPa 15 15 29 29 15 19 19 47 37 47 47 39 39 39 28 28 Wat...

Страница 17: ...utine maintenance The number of front panels depends on the capacity of the air conditioner SIDE PANELS All the side panels are accessible and removable Nonetheless these do not need to be removed for routine main tenance operations This means that if necessary a series of units can be installed next to each other The side panels are fastened by screws These are accessible directly on the side pan...

Страница 18: ... with the ISO 7000 standard the meaning of the symbols is shown in the table FRAGILE handle with care KEEP DRY indicates that the packaged unit must be kept in a dry place CENTRE OF GRAVITY indicates the centre of gravity of the packaged unit KEEP AWAY FROM HEAT indicates that the packaged unit must be kept away from sources of heat THIS SIDE UP indicates the correct position of the packaged unit ...

Страница 19: ... EC Radial fan Centrifugal fan Centrifugal fan AX kg 155 170 256 268 316 367 385 449 509 504 529 697 737 757 888 918 AW kg 161 177 266 280 328 381 399 467 528 528 554 725 766 791 948 979 AD kg 295 342 360 414 474 469 494 710 730 847 877 AT kg 330 381 399 453 513 508 533 746 766 884 914 AF kg 330 381 399 453 513 508 533 746 766 884 914 Frame F1 F2 F3 F4 F5 F6 Mod 07 10 15 18 20 26 29 39 30 40 50 55...

Страница 20: ... 367 385 449 509 504 529 697 737 757 888 918 AW kg 161 177 266 280 328 381 399 467 528 528 554 725 766 791 948 979 AD kg 295 342 360 414 474 469 494 710 730 847 877 AT kg 330 381 399 453 513 508 533 746 766 884 914 AF kg 330 381 399 453 513 508 533 746 766 884 914 Frame F1 F2 F3 F4 F5 F6 Mod 07 10 15 18 20 26 29 39 30 40 50 55 60 70 80 90 Net Weights ...

Страница 21: ... 367 385 449 509 504 529 697 737 757 888 918 AW kg 161 177 266 280 328 381 399 467 528 528 554 725 766 791 948 979 AD kg 295 342 360 414 474 469 494 710 730 847 877 AT kg 330 381 399 453 513 508 533 746 766 884 914 AF kg 330 381 399 453 513 508 533 746 766 884 914 Frame F1 F2 F3 F4 F5 F6 Mod 07 10 15 18 20 26 29 39 30 40 50 55 60 70 80 90 Net Weights ...

Страница 22: ...529 697 737 757 888 918 AW kg 161 177 266 280 328 381 399 467 528 528 554 725 766 791 948 979 AD kg 295 342 360 414 474 469 494 710 730 847 877 AT kg 330 381 399 453 513 508 533 746 766 884 914 AF kg 330 381 399 453 513 508 533 746 766 884 914 Frame F1 F2 F3 F4 F5 F6 Mod 07 10 15 18 20 26 29 39 30 40 50 55 60 70 80 90 Net Weights ...

Страница 23: ...t the transmission of noise and vibrations an elastic gas ket at least 5 mm thick should be inserted between the panels of the raised floor and the frame which must also be insulated from the metallic structure of the floor NOTE the frame must be fitted by the installer following the instructions shown inside the packaging L1 P1 X X 200 600 mm L1 mm 600 1000 980 1530 2080 2630 P1 mm 485 485 770 77...

Страница 24: ...here is no raised floor units with intake from the rear or front to simplify the connection of the pipes and cables a base moulding must be used The base moulding available as an accessory is epoxy polyester powder painted in the same colour as the external panels on the air conditioner measures 200 mm in height and is fitted with an inspection panel at the front fastened by two latches tightened ...

Страница 25: ...the thermal load of the environment For units with air outlet from the bottom the recommended air outlet speed from the raised floor is between 1 and 2 5 m s con sequently the cross section of the grills should be sized based on this value The total outflow area sum of the areas of the openings and net space of the grills required for each model must be calculated by dividing the total air flow ra...

Страница 26: ...H H mm 100 150 07 18 20 90 FRONT OUTLET PLENUM OVER UNITS A I U The figure shows the front outlet plenum optional for OVER units L H P L mm 600 1000 1000 1550 2100 2650 P mm 500 500 790 790 790 790 H mm 350 500 07 10 15 18 20 26 29 39 30 40 50 55 60 70 80 90 FRONT OUTLET MOULDING UNDER UNITS A I U The figure shows the moulding for the front air outlet optional for Under units L1 H P1 L mm 600 1000...

Страница 27: ...own in the image below The fresh air volume is around 5 of nominal air flow of unit Frame 1 0 50 100 150 200 250 1000 1500 2000 2500 3000 3500 m h Pa G4 F5 F6 F7 F8 Frame 2 0 50 100 150 200 250 3500 4000 4500 5000 5500 6000 6500 m h Pa Frame 3 0 50 100 150 200 250 3500 4500 5500 6500 7500 8500 9500 m h Pa Frame 4 0 50 100 150 200 250 7500 8500 9500 10500 11500 12500 13500 14500 m h Pa Frame 5 0 50...

Страница 28: ... IHW IN hot water OHW OUT hot water UNDER CONNECTIONS AX AW size 07 10 IR IN refrigerant AX OR OUT refrigerant AX IW IN water cooled AW OW OUT water cooled AW IP IN power supply IH IN humidifier water OH OUT humidifier water IHW IN hot water OHW OUT hot water OVER CONNECTIONS AX AW size 15 18 IR IN refrigerant AX OR OUT refrigerant AX IW IN water cooled AW OW OUT water cooled AW IP IN power supply...

Страница 29: ...ze 20 26 29 IR IN refrigerant AX AD OR OUT refrigerant AX AD IW IN water cooled AW OW OUT water cooled AW AT AF IWF IN water AF AT IP IN power supply IH IN humidifier water OH OUT humidifier water IHW IN hot water OHW OUT hot water OC OUT condensate water drain UNDER CONNECTIONS AX AW AD AT AF size 20 26 29 IR IN refrigerant AX AD OR OUT refrigerant AX AD IW IN water cooled AW OW OUT water cooled ...

Страница 30: ...igerant circ 1 AX AD IR2 IN refrigerant circ 2 AX AD OR2 OUT refrigerant circ 2 AX AD IW1 IN water cooled circ 1 AW OW1 OUT water cooled circ 1 AW AF AT IW2 IN water cooled circ 2 AW OW2 OUT water cooled circ 2 AW AF AT IWF IN water AF AT IP IN power supply IH IN humidifier water OH OUT humidifier water IHW IN hot water OHW OUT hot water OVER CONNECTIONS AX AW AD AT AF size 55 60 70 IR1 IN refrige...

Страница 31: ... AD AT AF size 80 90 IR1 IN refrigerant circ 1 AX AD OR1 OUT refrigerant circ 1 AX AD IR2 IN refrigerant circ 2 AX AD OR2 OUT refrigerant circ 2 AX AD IW IN water cooled AW OW OUT water cooled AW AT AF IWF IN water AF AT IP IN power supply IH IN humidifier water OH OUT humidifier water IHW IN hot water OHW OUT hot water UNDER CONNECTIONS AX AW AD AT AF size 80 90 IR1 IN refrigerant circ 1 AX AD OR...

Страница 32: ...he circu lating pump are suitable an insufficient water flow rate affects the performance of the air conditioner Check that the water inlet and outlet connections are cor rect Insulate all the chilled water pipes with closed cell material e g Armaflex or equivalent to prevent conden sation the insulation must allow access to the valves and the three piece joints For AW AT AFmodels check that the w...

Страница 33: ...000 90 000 200 000 300 000 400 000 500 000 10 9 8 7 6 5 4 3 2 1 100 90 80 70 60 50 40 30 500 400 300 200 6 000 Water flow l h 12 14 16 18 20 12 14 16 18 5 0 6 s m 8 0 s m 1 2 s m 1 4 s m 1 6 s m 1 8 s m 0 2 s m 2 5 s m 0 3 s m 3 s m 0 4 s m s m 0 1 2 Ø 2 1 1 Ø 4 1 1 Ø 1 Ø 4 3 Ø 2 1 Ø 8 3 Ø 5 Ø 4 Ø 3 Ø 2 1 2 Ø 6 Ø 5 Ø 4 Ø 3 Ø 2 1 2 Ø 2 Ø 2 1 1 Ø 4 1 1 Ø 1 Ø 4 3 Ø 2 0 s m 4 0 s m 6 0 s m 8 0 s m Pre...

Страница 34: ...00 10 000 2 000 3 000 4 000 5 000 6 000 7 000 8 000 9 000 100 000 20 000 30 000 40 000 50 000 60 000 70 000 80 000 90 000 200 000 300 000 400 000 500 000 10 9 8 7 6 5 4 3 2 1 100 90 80 70 60 50 40 30 500 400 300 200 6 000 Water Flow l h 12 14 16 18 20 12 14 16 18 5 8 0 s m 1 2 s m 1 4 s m 1 6 s m 1 8 s m 0 2 s m 2 5 s m 0 3 s m 3 s m 0 4 s m 2 0 s m 4 0 s m 6 0 s m 8 0 s m s m 0 1 0 6 s m 6 Ø 5 Ø ...

Страница 35: ...00 10 000 2 000 3 000 4 000 5 000 6 000 7 000 8 000 9 000 100 000 20 000 30 000 40 000 50 000 60 000 70 000 80 000 90 000 200 000 300 000 400 000 500 000 10 9 8 7 6 5 4 3 2 1 100 90 80 70 60 50 40 30 500 400 300 200 6 000 Water Flow l h 12 14 16 18 20 12 14 16 18 8 0 s m 1 2 s m 1 4 s m 1 6 s m 1 8 s m 0 2 s m 2 5 s m 0 3 s m 3 5 s m 0 4 s m 2 0 s m 4 0 s m 6 0 s m 8 0 s m s m 0 1 0 6 s m 6 Ø 5 Ø ...

Страница 36: ...discharge air conditioner heat insulation heat insulation outlet liquid max 5 metres air conditioner max 15 metres max 3 metres max 3 metres heat insulation air conditioner N B the liquid pipes must be protected against solar radiation Install an oil separator for pipe lenght above 30m see the oil separator paragraph ...

Страница 37: ... care must be paid to the insulation of the hot gas pipes under the raised floor RECOMMENDED OUTSIDE DIAMETERS OFTHE LINES for equivalent lengths up to 30m Model 07 10 18 20 26 29 39 30 40 50 55 80 90 15 60 70 Ø Liquid Line mm 12 12 16 12 16 18 Ø Gas Outlet Line mm 12 18 22 18 22 22 Models 7 10 15 18 29 39 30 40 60 70 80 90 20 26 50 55 GAS PIPELINE TYPE DIAMETER PIPE mm R407C Liquid line 12 16 18 ...

Страница 38: ...talled in the discharge line between the compressor and the condenser mounted securely in a vertical position and reasonably close to the compressor Oil separator performs best when operating at or near the compressor discharge temperature In location the oil separator choose a posi tion to avoid as far as possible chilling of the shell which may result in condensing of liquid within the separator...

Страница 39: ...ded Pipe diameter 10 12 16 18 22 28 GAS CONTENT FOR LINEAR METER Evaporator coil Indicative gas Models volume content kg dm3 R407C R410A AX 07 2 6 1 9 1 7 AX 10 3 9 2 4 2 2 AX 15 4 9 4 2 3 9 AX 18 7 3 5 2 4 8 AX AD 20 9 4 6 2 5 8 AX AD 26 9 4 6 2 5 8 AX AD 29 9 4 6 2 5 8 AX AD 39 15 6 8 7 8 2 AX AD 30 2X5 2 2X3 3 2X3 1 AX AD 40 2X7 8 2X4 35 2X4 1 AX AD 50 2X7 8 2X4 35 2X4 1 AX55 2X11 1 2X5 7 2X5 4...

Страница 40: ...r section of the electrical panel is protected by a plastic screen to remove the screen open the main switch and remove the fastening screws IG OFF ON 0 N L1 L2 L3 N1 R1 S1 T1 4 1 3 2 A 5 Part A connection of the power cable to the main disconnecting switch IG Power cable provided by the customer 1 Shielded RS485 or LAN cable outlet 2 Mains power supply inlet 3 Remote control and alarm signal cabl...

Страница 41: ... 16 35 26 57 26 57 26 57 26 16 31 91 56 96 56 96 56 96 16 35 26 57 26 57 26 57 26 16 100 60 400 3N 50 29 15 53 86 53 86 53 86 16 36 88 60 06 60 06 60 06 16 35 15 62 56 62 56 62 56 16 36 88 62 56 62 56 62 56 16 100 70 400 3N 50 32 71 59 26 59 26 59 26 16 38 66 62 76 62 76 62 76 16 38 71 67 96 67 96 67 96 25 38 71 67 96 67 96 67 96 25 100 80 400 3N 50 36 52 66 9 66 9 66 9 25 40 31 65 7 65 7 65 7 25 ...

Страница 42: ...4 3 29 400 3 50 1 2 67 4 77 400 3 50 1 3 63 6 38 400 3 50 1 2 7 4 3 39 400 3 50 1 4 74 8 31 400 3 50 1 6 42 11 08 400 3 50 2 2 7 4 3 30 400 3 50 1 4 74 8 31 400 3 50 1 6 42 11 08 400 3 50 2 2 7 4 3 40 400 3 50 1 4 74 8 31 400 3 50 1 6 42 11 08 400 3 50 2 2 7 4 3 50 400 3 50 1 4 74 8 31 400 3 50 1 6 42 11 08 400 3 50 2 2 7 4 3 55 400 3 50 1 8 61 14 66 400 3 50 1 10 45 18 7 400 3 50 3 2 7 4 3 60 400...

Страница 43: ...question Both are positioned and installed on the indoor unit refrigerant circuit ELECTRICAL CONNECTION OFTHE OUTDOOR AIR COOLED CONDENSER BRC AND ORTHE OUTDOOR DRY COOLER BDC A I U The ACCURATE units are provided for MODULATING version with fan speed control for condensing unit BRC or Dry Cooler BDC in order to maintain the condensing pressures within pre fixed values for any given load on the un...

Страница 44: ...em perature see tab 3 If adjustment is needed refer to graphic of tab 3 operating on trimmer T1 T2 Improper adjustment may result in system damage or failure Power connections 230V 10 15 50 60Hz JUMPERS VRMM card FUSE M 1 N N U L COMMAND TERMINALS TRIMMER TRIMMER TRIMMER POWER ON LED T1 T2 Tab 2 Master mode Commands connections and settings GND START MAX 5V 0V IN1 IN2 probe 2 _ probe 1 _ Jumper cl...

Страница 45: ...de and outside of the air conditioner have been filled with water during installation AT LEAST 12 HOURS AFTER POWER UP Start the air conditioner using the buttons on the user terminal If an alarm is activated refer to the controller instruction manual Open any valves in the unit or in the system to ensure that all the components are involved in the emptying operation Connect a high efficiency vacu...

Страница 46: ...d and may fall below 25 C a pressure control valve is required available as an accessory for each condenser in this case the supply pressure must not be less than 200 kPa 2 bar IMPORTANT do not use water cooled using an evaporative tower as the condensers will rapidly become fouled by lime scale Water in a closed circuit The condensers on the units are supplied with water pumped in a closed circui...

Страница 47: ...at least once a year involves having specialist personnel check the correct ten sion of the belt To check the tension proceed as follows apply a perpendicular force of around 20 N 2 kg to the centre of the belt between the 2 pulleys The belt must have a deformation of around 6 8 mm If this is not the case adjust the tension using the worm screw located on the slide that supports the electric motor...

Страница 48: ...et one on each refrigerant circuit Air flow sensor F3 and dirty filter sensor F4 differential pressure switches Temperature sensor BT2 versions C and T or room tempera ture and humidity sensor BH1 on the units with humidity con trol Some versions in addition have the following sensors Safety thermostat TH1 in the versions with electric heaters with the reset button accessible on the right hand sid...

Страница 49: ...n and dehumidifi cation Dirty filter differential pressure switch see the paragraph on CALIBRATING THE DIRTY FILTER SENSOR The calibration values of the control and safety devices must not be altered Symbol Description F1 High pressure switch F2 Low pressure switch TH1 Safety thermostat versions T and H Symbol Activation Differential Reset F1 28 bar opening Manual reset F2 1 5 bar opening 1 5 bar ...

Страница 50: ...sure switch perform the same operations in the reverse order inserting the cables from point C A mbar B B 1 3 2 mbar D C D E CALIBRATINGTHE DIRTY FILTER SENSOR A I U The factory calibration of pressure switch F4 is 3 mbar 300Pa Pressure switch F4 must be calibrated according to the pressure drop which depends not only on the filter being dirty but also on the air flow rate The calibration must be ...

Страница 51: ... on the top of the servomotor EMERGENCY MANUAL OPERATION The valve can be operated manually in the event of faults to the servomotor or the control system using the manual control knob not supplied TEMPERATURE AND HUMIDITY PROBE A I U The figure shows the optional temperature and humidity probe If having to replace the probe release the white plastic cover by pressing point A with a screwdriver or...

Страница 52: ...control signal SSB61 The valve opens closes in proportion to the control signal atY At DC 0V the valve is fully closed A AB When power supply is removed the actuator maintains its cur rent position Operation A 3 mm hexagonal socket wrench can be used to move the actuator to any position between 0 and 1 If a control signal from the controller is present then this takes priority in determining the p...

Страница 53: ...calibration SSC619 When the AC DC 24 V supply is applied for the first time the actuators calibrate themselves independent of the control signal In this process the actuator drives the valve to the mechanical end stops and stores the associated positions per manently in the form of electronic values The positioning signal is only active on completion of this calibration process Calibration takes a...

Страница 54: ...terminals Y and or R The recorded positioning signals control the synchronous motor by means of microprocessor electronics Signal Y R increasing actuator stem extends valve opens Signal Y R decreasing actuator stem retracts valve closes Signal Y R constant actuator stem remains in the respective position SQX82 SQX62 1 Terminal strip 2 Button S3 calibration 3 LED red green operating status indicati...

Страница 55: ... everything o k Flashing Calibration Wait until calibration is finished green or red LED will be lit Red Lit Internal error Troubleshooting eventually replace actuator Flashing Calibration error Troubleshooting recalibrate operate button S3 1x Both Dark No power supply Check mains network check wiring Electronics faulty Replace actuator 2 WAYVALVE CLOSE OFF For applications where the 2 way valve i...

Страница 56: ...isconnect power to the air conditioner and wait until the heating elements have cooled down After having replaced the heaters make sure the earth is connected HUMIDIFIER A I U SYSTEM COMPONENTS Upon request the air conditioning unit can be fitted with an immersed electrode humidifier versions D and H 1 Humidifier interface board A3 inside the electrical panel 2 Current transformer TA1 inside the e...

Страница 57: ...the flakes that deposit on the filter at the base of the cylinder To remove the cylinder proceed as follows completely drain the water from the boiler to do this see the paragraph MANUAL CONTROL in the EVOLUZIONE con troller instruction manual disconnect the power supply by opening the main switch on the electrical panel remove from the top of the cylinder the hose that carries the steam to the di...

Страница 58: ...nside the unit with water Downstream of the drain trap ensure a minimum slope of 1 WARNING the water exiting the steam cylinder is very hot The humidifier drain hose must not be fastened to electrical cables and must run down vertically so as to avoid any contact with these cables CONDENSATE DRAIN PUMPAND HUMIDIFIER DRAIN PUMP A I U Depending on the version a condensate drain pump is available for...

Страница 59: ...t against the condensing temperature Normally for good heat exchange the difference between the water outlet temperature and the condensing temperature must be 5 8 C Increases in these values over time indicate a reduction in efficiency and consequently the fouling of the condenser The condenser is cleaned by chemical washing and must be per formed by specialist personnel This operation must be ca...

Страница 60: ...CE 2002 96 CE If the unit has to be dismantled this operation must be done by suitable local authority The correct dismantling avoids any nega tive enviromental consequences and allows significant benefits in terms of energy saving and resource The necessity to a correct dismantling is signed by the label as shown on side A I ...

Страница 61: ...e controller The probe isn t working Check the thermal load in the room being air conditioned Thermal load higher than expected See THE COMPRESSOR COMPRESSORS DON T START The compressor compressors don t start despite being activated by the controller ROOMTEMPERATURE TOO HIGH See the controller manual The parameter settings on the microprocessor controller are not correct Check that the heater the...

Страница 62: ...d Check the pressure of the supply water Check the operation of the manual control system and the steam production unit see the control panel manual The humidifier isn t working See the control panel manual check the operation of the panel and or the probe The control system isn t working AMBIENT HUMIDITY TOO LOW Check the power supply to the fans The fans are not powered Clean the filter using a ...

Страница 63: ...s not exceed the design value B Insufficient air flow rate to the remote heat exchanger or air too hot Check the flow rate the pressure and the temperature of the cooling water in the clo sed circuit Check the calibration and the operation of the pressure control valve Insufficient water flow rate to the condenser or water too hot Remove refrigerant from the circuit Excessive refrigerant charge co...

Страница 64: ...eck that the valve sensor bulb is not discharged and that it is correctly positioned secured and insulated a Return of liquid refrigerant to the compressor intake HIGH COMPRESSOR SUCTION PRESSURE See ROOM TEMPERATURE TOO LOW Room temperature too low See LOW OR NO AIR FLOW The air flow rate is too low or null Check the opening of the valve Liquid receiver outlet valve not completely open Check that...

Страница 65: ......

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