Air Design CSV21N Operating instructions

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WATER CASSETTES MI CSVN-HCVN 0000 0505 AUS 01

INSTALLATION, USE AND
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CSVN
HCVN
CONTENTS
PART ONE: FOR THE INSTALLER
GENERAL DIMENSION FOR 2 PIPE WATER CASSETTES 2
GENERAL DIMENSION FOR 4 PIPE WATER CASSETTES 3
GENERAL TECHNICAL DATA FOR 2 PIPE WATER CASSETTES 4
CORRECTION COEFFICIENTS FOR DIFFERENT SPEED 4
GENERAL TECHNICAL DATA FOR 4 PIPE WATER CASSETTES 5
CORRECTION COEFFICIENTS FOR DIFFERENT SPEED 5
WORKING LIMITS 6
GENERAL FEATURES AND MAIN COMPONENTS 6
RECOMMENDATIONS FOR THE INSTALLER
Unit installation
RECEIVING, STORING AND MOVING THE UNITS 8
INSTALLATION ACCESSORIES 8
SELECTION OF LOCATION FOR INSTALLATION 8
Recommendations 8
INSTALLATION 8
Fixing the cassette 8-9
Fixing the panel 9
CHANGE OF AIR AND RECIRCULATION SYSTEM 9
Fresh air intake 9
Air supply to an adjacent room 9
Fresh air intake wiring diagrams 9
WATER CONNECTIONS 9
Standard water connection to heating/cooling system 9-10
INSTALLATION OF AUXILIARY CONDENSATE DRAIN PAN 10
CONDENSATE DRAINAGE 10
GENERAL WIRING DIAGRAMS 10
Acces to the swhitchboard 10
Wiring diagram of 2 pipe system (I.R. remote control) 11
Wiring diagram of 4 pipe system (I.R. remote control) 11
Wiring diagram of 2 pipe system (wall-mounted control CD2/X ) 12
Wiring diagram of 4 pipe system (wall-mounted control CD2/X ) 12
Wiring diagram (without control): CSVN 13
PART TWO: FOR THE USER
RECOMMENDATIONS FOR THE USER 13
WATER CASSETTE OPERATION 13
I.R. REMOTE CONTROL 14
remote control operation 14-15
WALL-MOUNTED CONTROL: CD2/X 15-16
Wall-mounted control operation 16
Condensate drain pump operation specifications 16
Pre-heat function 16
Electrical characteristics 16
Detail of wall-mounted control operation 16-1
TIPS FOR BEST USE 1
Energy saving 1
ROUTINE MAINTENANCE 1
Opening the panel 1
Filter cleaning 18
End of season maintenance 18
TROUBLESHOOTING 18
DECLARATION OF CONFORMITY 19
2

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GENERAL DIMENSIONS FOR 2 PIPE WATER CASSETTES
MODEL CSV21N CSV22N CSV23N CSV24N HCV31N HCV32N HCV33N HCV34N
Fans number n° 1 1 1 1 1 1 1 1
Coils number n° 1 1 1 1 1 1 1 1
Rows number n° 1 1 1 1 2 2 2 2
Hydraulic fittings (Ø female gas) Ø 3 4" 3 4" 3 4" 3 4" 3 4" 1" 1" 1"
Depth of the unit (Lu) mm 580 580 580 580 835 835 835 835
Length of the unit (Pu) mm 580 580 580 580 835 835 835 835
Height of the unit (Hu) mm 280 280 280 280 240 305 305 305
Depth of the panel (Lp) mm 720 720 720 720 953 953 953 953
Length of the panel (Pp) mm 720 720 720 720 953 953 953 953
Height of the panel (Hp) mm 65 65 65 65 80 80 80 80
Air supply in adjacent room (Ø) A mm 150 150 150 150 - - - -
Air supply in adjacent room (BxH) C mm 350x100 350x100 350x100 350x100 120x80 120x80 120x80 120x80
Fresh air intake (Ø) D mm 65 65 65 65 - - - -
Fresh air intake (BxH) E mm - - - - 120x80 120x80 120x80 120x80
B mm 225 225 225 225 180 325 325 325
X mm 65,5 65,5 65,5 65,5 70 73 73 73
Y mm 55,5 55,5 55, 55,5 75 68 68 68
W mm 100 100 100 100 58 88 88 88
Z mm 146 146 146 146 117 160 160 160
Net weight kg 23,5 24,5 24,5 24,5 37,0 43,0 43,0 45,0
General
Features
MOD. CS21N - CSV22N - CSV23N - CSV24N MOD. HCV31 - HCV32N - HCV33N - HCV34N
Fig. 02
Lu
550
515
Pu
X
34.5
C ndensate
fitting Ø 24
52
W
Z
Lp
Pp
Hu
B
Hp
C
D
Y
42 23
785
Pp
Pu
512
C ndensate
fitting Ø 27
Lp
65
57
B
Hu
Y
X
20 60
Lu
EC
Hp
A
W
Z
Fig. 01
3

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HCVN
GENERAL DIMENSIONS FOR 4 PIPE WATER CASSETTES
MODEL CSV41N CSV42N CSV43N CSV44N HCV51N HCV52N HCV53N HCV54N
Fans number n° 1 1 1 1 1 1 1 1
Coil numbers n° 2 2 2 2 2 2 2 2
Rows number (standard coil) n° 1 2 2 2 2 2 2 2
Hydraulic fittin : standard (Ø female as) Ø 1/2" 1/2" 1/2" 1/2" 3/4" 1" 1" 1"
Rows number (1R coil) n° 1 1 1 1 1 1 1 1
Hydraulic fittin : 1R coil (Ø female as) Ø 1/2" 1/2" 1/2" 1/2" 1/2" 3/4" 3/4" 3/4"
Depth of the unit (Lu) mm 580 580 580 580 835 835 835 835
Len th of the unit (Pu) mm 580 580 580 580 835 835 835 835
Hei ht of the unit (Hu) mm 280 280 280 280 240 305 305 305
Depth of the panel (Lp) mm 720 720 720 720 953 953 953 953
Len th of the panel (Pp) mm 720 720 720 720 953 953 953 953
Hei ht of the panel (Hp) mm 65 65 65 65 80 80 80 80
Air supply in adjacent room (Ø) A mm 150 150 150 150 - - - -
Air supply in adjacent room (BxH) C mm 350x100 350x100 350x100 350x100 120x80 120x80 120x80 120x80
Fresh air intake (Ø) D mm 65 65 65 65 - - - -
Fresh air intake (BxH) E mm - - - - 120x80 120x80 120x80 120x80
B mm 225 225 225 225 180 325 325 325
X mm 65,5 65,5 65,5 65,5 86 73 73 73
Y mm 55,5 55,5 55, 55,5 75 68 68 68
Wmm8282828258888888
Z mm 100 100 100 100 117 160 160 160
M mm 146 146 146 146 - - - -
N mm 159 159 159 159 - - - -
Net wei ht k 23,5 24,5 24,5 24,5 37,0 43,0 43,0 45,0
General
features
MOD. CSV41N - CSV42N - CSV43N - CSV44N MOD. HCV51 - HCV52N - HCV53N - HCV54N
Fig. 04
Lu
550
515
Pu
X
34.5
C ndensate
fitting Ø 24
52
W
N
Lp
Pp
Hu
B
Hp
C
D
Y
42 23
785
Pp
Pu
512
C ndensate
fitting Ø 27
Lp
65
57
B
Hu
Y
X
20 60
Lu
EC
Hp
A
W
Z
Z
M
Fig. 03
4

WATER CASSETTES
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INSTALLATION, USE AND
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Above mentioned technical data is calculate at the following operating conditions:
- Maximum fan speed
- Work
(A) ooling: inlet water temperature: 7 ° ; Outlet water temperature: 12 ° ; Inlet air temperature: 27 ° w.b. 19 ° d.b.
(B) Heating: inlet water temperature: 70 ° ; Outlet water temperature: 60 ° ; Inlet air temperature: 20 °
( ) Heating: inlet water temperature: 50 ° ; Same water flow as in cooling; Inlet air temperature: 20 °
(D) Air flow and fan speed: fancoil performances with cleaned filter
(E) Sound power level: Sound power measured following ISO 23741
(F) Electrical data referred to the maximum available speed
Notes: HCN units don't take part in EUROVENT CERTIFICATION program
GENERAL TECHNICAL DATA FOR 2 PIPE WATER CASSETTES
W 1.980 2.870 3.260 4.490 5.730 6.760 8.080 10.540
Frig/h 1.707 2.474 2.810 3.871 4.940 5.828 6.966 9.086
W 1.505 2.009 2.347 3.233 4.182 4.934 5.979 7.588
Frig/h 1.297 1.732 2.023 2.787 3.605 4.254 5.154 6.541
kPa 20,6 26,1 40,2 50,4 35,1 34,3 37,3 53,9
m.c.a. 2,06 2,61 4,02 5,04 3,51 3,43 3,73 5,39
W 2.720 3.830 4.940 6.150 6.550 7.790 9.310 12.010
kcal/h 2.345 3.302 4.259 5.302 5.647 6.716 8.026 10.353
kPa 16,9 21,4 32,9 41,3 29,7 29,1 31,6 45,7
m.c.a. 1,69 2,14 3,29 4,13 2,97 2,91 3,16 4,57
l/h 341 494 561 773 986 1.163 1.390 1.814
l/s 0,095 0,137 0,156 0,215 0,274 0,323 0,386 0,504
W 4.540 6.390 8.240 10.250 10.790 12.820 15.310 19.890
kcal/h 3.914 5.509 7.103 8.836 9.302 11.052 13.198 17.147
kPa 17,4 22,1 34,0 42,7 28,8 28,1 30,6 44,2
m.c.a. 1,74 2,21 3,4 4,27 2,88 2,81 3,06 4,42
l/h 391 550 709 882 928 1.103 1.317 1.711
l/s 0,108 0,153 0,197 0,245 0,258 0,306 0,366 0,475
m3/h 543 611 680 815 832 1087 1087 1274
m3/s 0,151 0,170 0,189 0,226 0,231 0,302 0,302 0,354
r.p.m. 700 785 830 1100 540 610 610 630
dB(A) 51 53 57 62 54 58 58 62
W 58 126 126 124 58 126 126 124
A 0,41 0,57 0,57 0,66 0,41 0,57 0,57 0,66
Total cooling capacity
Sensible cooling capacity
Heating capacity
Water flow
Water pressure drops in heating
Air flow
Speed of the fan
Sound power level
Motor electrical power
Electrical supply: 230V / 1 / 50Hz
A
Heating capacity
C
Water flow
A-C
Water pressure drops in cooling
A
Water pressure drops in heating
C
B
D
E
F
1 0,55 0,58 0,49 0,56 0,80 0,79 0,78 0,80
2 0,73 0,75 0,68 0,67 0,87 0,88 0,87 0,86
3 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00
1 0,57 0,58 0,51 0,56 0,82 0,79 0,80 0,80
2 0,75 0,75 0,70 0,67 0,89 0,88 0,89 0,86
3 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00
1 0,57 0,59 0,51 0,57 0,82 0,80 0,80 0,81
2 0,75 0,76 0,70 0,68 0,89 0,89 0,89 0,87
3 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00
1 0,47 0,46 0,44 0,43 0,75 0,71 0,73 0,73
2 0,64 0,65 0,65 0,65 0,84 0,84 0,86 0,84
3 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00
CORRECTION COEFFICIENTS FOR THE DIFFERENT SPEED
Total cooling capacity
Sensible cooling capacity
Heating capacity
Air flow
Motor electrical input
MODEL CSV21N CSV22N CSV23N CSV24N HCV31N HCV32N HCV33N HCV34N
MODEL CSV21N CSV22N CSV23N CSV24N HCV31N HCV32N HCV33N HCV34N
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INSTALLATION, USE AND
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HCVN
Above mentioned technical data is calculated at the following operating conditions:
- Ma imum fan speed
- Standard unit without work
(A) Cooling: inlet water temperature: 7 °C; Outlet water temperature: 12 °C; Inlet air temperature: 27 °C w.b. 19 °C d.b.
(B) Heating: inlet water temperature: 70 °C; Outlet water temperature: 60 °C; Inlet air temperature: 20 °C
(C) Heating: inlet water temperature: 50 °C; Same water flow as in cooling; Inlet air temperature: 20 °C
(D) Air flow and fan speed: fancoil performances with cleaned filter
(E) Sound power level: Sound power measured following ISO 23741
(F) Electrical data referred to the ma imum available speed
Notes: HCN units don't take part in EUROVENT CERTIFICATION program.
GENERA TECHNICA DATA FOR 4 PIPE WATER CASSETTES
W 1.450 2.020 2.860 3.460 4.790 5.910 7.040 9.300
Frig/h 1.250 1.741 2.466 2.983 4.129 5.095 6.069 8.017
W 1.204 1.515 2.174 2.664 3.496 4.313 5.210 6.696
Frig/h 1.038 1.306 1.874 2.297 3.014 3.718 4.491 5.772
kPa 21,8 26,2 40,6 45,4 26,7 41,9 41,9 49,5
m.c.a. 2,18 2,62 4,06 4,54 2,67 4,19 4,19 4,95
l/h 250 348 492 595 824 1.017 1.211 1.600
l/s 0,069 0,097 0,137 0,165 0,229 0,282 0,336 0,445
W 970 1.640 1.840 2.310 4.190 5.140 6.130 7.450
kcal/h 836 1.414 1.586 1.991 3.612 4.431 5.284 6.422
kPa 30,8 29,2 34,2 39,8 35,7 22,3 29,7 40,7
m.c.a. 3,08 2,92 3,42 3,98 3,57 2,23 2,97 4,07
l/h 83 141 158 199 360 442 527 641
l/s 0,023 0,039 0,044 0,055 0,100 0,123 0,146 0,178
W 2.280 2.950 4.360 5.310 6.880 8.480 10.110 12.340
kcal/h 1.966 2.543 3.759 4.578 5.931 7.310 8.716 10.638
kPa 33,2 31,4 36,8 42,8 38,4 24,0 32,0 43,8
m.c.a. 3,32 3,14 3,68 4,28 3,84 2,4 3,2 4,38
l/h 196 254 375 457 592 730 870 1.062
l/s 0,054 0,071 0,104 0,127 0,164 0,203 0,242 0,295
m3/h 543 611 680 815 832 1087 1087 1274
m3/s 0,151 0,170 0,189 0,226 0,231 0,302 0,302 0,354
r.p.m 700 785 830 1100 540 610 610 630
dB(A) 51 53 57 62 54 58 58 62
W 58 126 126 124 58 126 126 124
A 0,41 0,57 0,57 0,66 0,41 0,57 0,57 0,66
Total cooling capacity
Sensible cooling capacity
Heating capacity
Water flow
Water pressure drops in heating
Air flow
Fan speeds
Sound power level
Motor electrical power
Electrical supply: 230V / 1 / 50Hz
A
Heating capacity
C
Water flow
C
Water pressure drops in cooling
A
Water pressure drops in heating
C
B
D
E
F
1 0,54 0,57 0,48 0,55 0,79 0,78 0,77 0,79
2 0,72 0,74 0,67 0,66 0,86 0,87 0,86 0,85
3 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00
1 0,56 0,57 0,50 0,55 0,81 0,78 0,79 0,79
2 0,74 0,74 0,69 0,66 0,88 0,87 0,88 0,85
3 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00
1 0,56 0,58 0,50 0,56 0,81 0,79 0,79 0,80
2 0,74 0,75 0,69 0,67 0,88 0,88 0,88 0,86
3 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00
1 0,46 0,44 0,42 0,42 0,74 0,70 0,72 0,72
2 0,63 0,63 0,64 0,63 0,83 0,83 0,85 0,83
3 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00
CORRECTION COEFFICIENTS FOR THE DIFFERENT SPEED
Motor electrical input
MODE CSV41N CSV42N CSV43N CSV44N HCV51N HCV52N HCV53N HCV54N
Water flow
A
Total cooling capacity
Sensible cooling capacity
Heating capacity
Air flow
MODE CSV41N CSV42N CSV43N CSV44N HCV51N HCV52N HCV53N HCV54N
6

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WORKING LIMITS
Maximum inlet water temperature 70 °C
Minimum inlet water temperature + 4 °C
Maximal working pressure 8 bar
Maximal inlet air temperature 32 °C
Minimal inlet air temperature + 4 °C
ATTENTION! Air stratification increases with a rise in water inlet temperat re!
GENERAL FEATURES AND MAIN COMPONENTS
1 Air low direction louvers
2 Air intake grille with ilter
3 Air low direction louvers
4 Indicator lights
5 Power
6 Sleep mode
7 Timer mode
8 In rared remote control receiver
Fig. 6
OFF COOL HEAT
Fig. 5
ON
OFF
CSVN
POWER SLEEP TIMER EMERGENCY
OFF
COOL
HEAT
HCVN
9EMERGENCY switch (used to switch on the air conditioner manually, without
using the remote control, ollowing the order given below).
7
STRUCTURE
Made in heavy-gauge galvanised sheet, the structure comes complete with
external brackets on the 4 corners or easy ixing to the ceiling. Thermal-acoustic
insulation: lining (polystyrene), external cladding (closed cell). Set-up or distribution
o air to adjacent rooms through knock-out holes, either circular Ø 150 mm or
rectangular 350x100 mm (CSVN), and rectangular 120 x 80 mm (HCVN),
located on two sides o the appliance.
Set-up or external air intake through Ø 65 mm circular knock-out hole (CSVN).
Rectangular 120x80 mm knock-out (HCVN). Located on a squared o corner
o the appliance.
HEAT EXCHANGER
Coil in copper piping expanded into aluminium ins in continuous block. The
headers have easily accessible emale gas ittings and air vent/drainage valve
located on the squared o corner o the appliance.
AIR FILTER
The ilter comprises a plastic rame holding the iltering membrane. Inserted in
the inner part o the ront panel, it may be easily removed and cleaned using a
vacuum cleaner ollowed by washing with water.
MOTOR FAN GROUP
Single-inlet centri ugal an with statically and dynamically balanced plastic
impeller. The 3-speed electric motor, made to international standards, has an
overload cut-out and the run capacitor always connected. The motor is directly
coupled to the an and cushioned with lexible mountings.
It is particularly e icient and is low noise.
DÉCOR PANEL
The décor panel has an innovative design so that the appliance may be used
in both dwellings and business premises. The white (RAL 9003) panel is made
in lightweight but strong plastic. Fixing to the load-bearing structure is quick
and easy. 4 adjustable louvers ensure best air distribution throughout the room.
Central intake grille with ilter or cleaning the air. The grille may be removed
to access internal parts without having to remove the panel rom the ceiling.
ELIMINATION OF CONDENSATION
Condensate collecting system comprising:
- internal plastic tray or collecting condensation coming rom the heat exchanger;
- external auxiliary plastic tray or collecting condensation coming rom the
valves and connecting pipes.
Electric pump, which is an integral part o the appliance and connected to the
external itting.
WALL REMOTE CONTROL (accessory)
Wall remote control with 10 m wire

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HCVN
RECCOMENDATIONS FOR THE INSTALLER
Upon receiving the unit check for any damage, which should be reported
immediately For the water cassette to operate correctly, it should be installed
according to the instructions given in this manual Removal of a water cassette
after it has been installed is an operation that requires special training: if this is
necessary, please consult your dealer After installation, explain the correct
operating procedure to the customer using the booklet as a reference Leave
this manual with the customer since it is part of the kit supplied with the appliance
Take care not to scratch the units when handling them
UNIT INSTALLATION
- Read this instruction manual thoroughly before starting installation
- This unit complies with the low-voltage (EEC/73/23) and electromagnetic
compatibly (EEC/89/336) directives
- The installation should be carried out by a qualified installer
- Follow all current national safety code requirements In particular ensure that
a properly sized and connected ground wire is in place
- Check that the voltage and frequency of the mains power supply are as
required for the unit to be installed; the available power source must be
adequate to operate all other appliances connected to the same line
- Ensure that national safety code requirements have been followed the main
supply circuit
- Where necessary, use field-supplied 25 mm I D PVC pipe of appropriate
length and with the correct thermal insulation for the condensate drain
extension
- After installation thoroughly test system operation and explain all system
functions to the owner
- Use this only for factory approved applications: the unit cannot be used in
laundry or stream pressing premises
WARNING!
- Disconnect the mains power supply switch before servicing the system or handling
any internal parts of the unit.
- The manufacturer declines any liability for damage resulting from modifications or
errors in the electrical or water connections.
- Failure to observe the installation instructions, or use the unit under conditions
other than those indicated in table Operating limits of this manual, will immediately
invalidate the unit warranty.
- Failure to observe electric safety codes may cause a fire ha ard in the event of
short circuits.
- Do not install or use damaged units.
- In case of malfunction turn the unit off, disconnect the mains power supply and
contact a qualified service engineer.
- Maintenance must only be carried out by qualified personnel.
- All of the manufacturing and packaging materials used for this appliance are
biodegradable and recyclable.
- Dispose of the packaging material in accordance with local requirements.
RECEIVING, STORE AND MOVING THE UNITS
At the moment of the delivery of the unit, make sure that it corresponds to the
one indicated on the transport document Check the integrity of the packing
and the unit Should there be any differences with the original order or any
damages, anomalies, or incomplete supply, please point it out on the delivery
note and inform the firm straight away Never install or use damaged apparatuses
The unit can be stored in room protected from bad weather with temperature
between -20°C and +55°C Transport the packed unit as near as possible to
the installation place To avoid any damage to the unit, the plastic part (frontal
panel and grille) are furnished separately The handling and the installation could
be facilitated by use of an elevator(fig 07)
ATTENTION!
Lift up the cassette by the four corners. Don't
lift or move the unit through the exchanger
pipelines or the exhaust pipe condense.
!
Fig. 07
!
INSTALLATION ACCESSORIES
n 1 Cardboard mounting template;
n 2 Batteries;
n 1 Remote control;
n 1 Auxiliary drain pan;
SELECTION OF CASSETTE INSTALLATION LOCATION
RECCOMENDATION!! The unit must be installed in a solid and vibration-free
ceiling There should be no obstruction of the air flow into and out of the unit
and the air should be evenly distributed throughout the whole room Do not install
the unit near sources of heat, steam or inflammable gases Install the unit near
an electric socket or connect it directly to the power supply Do not install the
unit in a place, which is exposed to direct sunlight The selected place should
allow easy drainage of the condensed water Periodically check appliance
operation and leave sufficient space for maintenance around the appliance, as
shown in the figure 07 Install the unit so that the filter is easily accessible
INSTALLATION
FIXING THE CASSETTE
Select a place of installation where there can be a clearance of a least 100 cm
(see fig 08) around the appliance Make sure that the installation does not
interfere with existing electric wiring or plumbing Establish the position and size
of the hole in the ceiling using the external diameter of the cardboard mounting
template (fig 09)
Select the final position of the unit in the ceiling using the references printed on
the cardboard mounting template (fig 10)
!
To fix the unit to the ceiling, use the threaded bar and suitable screw anchors
as shown in fig 09 (material not included in the supply)
>100
100 < H > 3 0
Fig. 08
C
B
D
A
Fig. 10
Fig. 09
Use a spirit level (fig 11) to make sure that the unit is level and check that it
is securely fixed to the ceiling In high humidity environments, metal supports
must be insulated using adhesive insulating material
8

WATER CASSETTES
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INSTALLATION, USE AND
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FIXING THE PANEL
After installation of the unit, mount the grille using the 4 screws provided (fig.
12).
N.B.: It is very important to ix the grille in the right position or correct
connection o the receiver panel to the unit.
NOTES:
- To fix the panel only use the four supplied screws. Do not use other kinds of
screws or you could damage the condensate drain pan.
- Do not end or narrow the unit piping.
- Do not remove the cap from the unit piping until immediately efore connecting
the pipes.
- To prevent deformation of the air intake grille, do not overtighten the screws.
CHANGE OF AIR AND RECIRCULATION SYSTEM
- Side knockouts allow connection of a duct for fresh air intake and for
conditioning an adjacent room.
- Remove the external prepunched anti-condensate insulator and remove
the knockout panels using a punch.
FRESH AIR RENEWAL
Remove the polystyrene partition and insert the affle plate.
Use material purchased locally that is suita le for continuous operation with
temperatures of 60°C. The ducts may e in flexi le polyester (with steel spiral
core) or in corrugated aluminium lagged with anti-condensate material (fi reglass
12±25 mm thick). Upon completion of installation, surfaces that have not een
insulated may e covered with anti-condensate insulating material (e.g.: 6 mm
thick expanded neoprene).
Failure to comply with these instructions could cause dripping due to the
condensate; the manu acturer cannot be held responsible or any damage.
Any additional fan for external air intake (installer's responsi ility) must e
connected to the terminal lock as per the enclosed diagrams.
Fan operation is in parallel to the damper (electrothermal control valve), so that
it stops when the valve closes. Install an air inlet grille on the outside, with an
inspecta le filter holding frame to prevent the entry of dust and leaves, which
could irrepara ly o struct the unit heat exchanger coil.
AIR SUPPLY TO AN ADJACENT ROOM
Remove the polystyrene, taking care not to damage the ehind heat exchanger
coil to the rear.
Do not use the two knockout side openings for air ducting to an adjacent room
simultaneously.
ATTENTION!
1) Ducting air to an adjacent room requires the closure o at least the
corresponding duct end.
2) When valves are installed, the air ducts to the "D" adiacent room
are unusable (pict. 13)
FRESH AIR RENEWAL WIRING DIAGRAM
Fig. 12
!
!
Fig. 11
WATER CONNECTIONS
STANDARD WATER CONNECTION TO HEATING/ COOLING SYSTEM
Fig. 15
3 way motor-operated
valve
Water inlet
Tap
Tap
Water outlet
!
A= Knockout for air supply to an adjacent room Ø 150 mm
B= Knockout for air supply to an adjacent room 350x100 mm
C= Knockout for fresh air intake Ø 65 mm
D= Knockout for air supply to an adjacent room 120x80 mm
E= Knockout for air supply to an adjacent room 120x80 mm
F= Knockout for fresh air intake 120x80 mm
PE
L N
C
N
L
B
D
A
C
M
PE
L N
C
N
L
B
D
A
C
M
C2
N
LEGEND
A Fan circuit reaker
B Fan control relay 230V Fig. 14
2 PIPE SYSTEM 4 PIPE SYSTEM
C Antifreeze fresh air protection
D Fresh air fan motor
ATTENTION! IT IS COMPULSORY TO INSTALL THE VALVE!
ATTENTION!
- Always use suitably sized wrenches to ix or slacken the water pipes.
- It is essential to insulate pipes, valves and connections correctly in order to
!
9
Fig. 13
A
B
C
E
D
F

INSTALLATION, USE AND
MAINTENANCE GUIDE
>>
series
CSVN
HCVN
avoid the formation of condensation, which could drip onto suspended ceilings
causing considerable problems.
The water connections are fixed to the unit body to avoid damage when pipes are
connected. It is advisab e to tighten the connection with a wrench. The upper coi connection
is fitted with an air va ve and the ower connection with a drain va ve, suitab e for a 10 mm
wrench or screwdriver. (The coi is on y partia y drainab e; it is advisab e to b ow air into
the coi for comp ete drainage)
INSTALLATION OF A XILIARY DRAIN PAN
a) Remove the p astic cap from the condensate drain out et on the water cassette. Do
NOT push the cap into the cassette. Fit the nozz e into the ho e (auxi iary condensate
drain pan out et).
b) Fix the auxi iary drain pan to the unit using the re ative screws provided in the kit,
ensuring that the condensate pan is eve
Fig. 16
!
There is the possibi ity of draining water from 200 mm above the eve of the unit. To drain
the condensate at a higher eve , insta condensate drain pump with co ecting tray and
f oat va ve. A f oat va ve is recommended to stop the f ow of water in the event of pump
fai ure.
Fig. 21: The condensate drain hose should be fixed using intermediate mounts
to prevent deformation of the hose. The drain hose should slope slightly
downwards to encourage drainage of the condensed water.
Fig. 18
2%
50
Fig. 21
A few examp es are shown schematica y be ow of condensate drainage connection in
a correct (fig. 20-21) and incorrect manner (fig. 22-23).
Fig. 19
< 200 mm
Fig. 24
!
CORRECT!
IMPORTANT! If the drain pan plastic cap is removed, remember to seal it
with silicone when replacing it!
CONDENSATE DRAINAGE
ATTENTION!
CONDENSATE DRAINAGE IS F NDAMENTAL FOR GOOD OPERATION OF THE
WATER CASSETTE. LAG THE PIPES S ITABLY AND CORRECTLY.
To ensure a correct f ow of the condensed water, the water drainage pipe must have a
s ope of 2% without obstructions. Insta a trap at east 50 mm deep in order to avoid
unp easant sme s.
Fig. 17
!
!
Fig. 23
Fig. 23: The drain hose is on the same lever as unit
Fig. 22
Fig. 22: The drain hose is bent or points upwards.
WRONG!
WRONG!
Fig. 20: hen several units are installed near to each other and only one
condensate drain hose is used, make sure that the capacity of the hose is
sufficient and that it is positioned on a slightly lower level than the appliance.
Fig. 20
CORRECT!
10

WATER CASSETTES
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INSTALLATION, USE AND
MAINTENANCE GUIDE
WIRING DIAGRAM OF 4 PIPE SYSTEM WATER CASSETTE WITH I.R. (CSVN + HCVN)
HIGH MEDIUM LOW L N
brown
red red red red red red
yellow yellow
black
red
black
yellow
black
red Electrical supply
230Vac/50 Hz
L
N
C1 Heat valve
230Vac/50 Hz
Earth
relay 9
relay 4 relay 6
relay 2 relay 1
relay 3
P23
P1 P19
P20
P26P27
P25 P24 P13 P12
P11
P10
P9 P P7 P6 P5 P4 P3 P2 P1
LCD4
AI CONT OL
T ANSFO ME
led led led
Timer Sleep Power
I. . ECEIVE
REC1
SW1
P1
LS1
NO
NC
C
DP SM
Fig. 26
buzzer
yellow
N
C2
black
WIRING DIAGRAM OF 2 PIPE SYSTEM WATER CASSETTE WITH I.R. (CSVN + HCVN)
LEGEND
Connector
Earth
LPhase
NNeutral
M1 Fan motor(230Vac/50Hz)
SM Louvre motor (230Vac/50Hz)
DP rain pump (230Vac/50Hz)
FS Float switch (NC)
LS1 SM limit switch (60x60 cassette)
Safety switch (90x90 cassette: when opening
the filter panel, the unit will stop)
CHeat/cool valve output
Co Common
P1,P2,..., Pn Terminals
WATE TEMPE ATU E SENSO
AI TEMPE ATU E SENSO
Cool valve
230Vac/50 Hz
FS
HIGH MEDIUM LOW L N
brown
red red red red red red red red
yellow yellow
blue
black black
black
red
black black
yellow
black
red Electrical supply
230Vac/50 Hz
L
N
CHeat/cool valve
230Vac/50 Hz
Earth
FS
relay 9
relay 4 relay 6
relay 2 relay 1
relay 3
P23
P1 P19
P20
P26P27
P25 P24 P13 P12
P11
P10
P9 P P7 P6 P5 P4 P3 P2 P1
LCD4
AI CONT OL
T ANSFO ME
WATE TEMPE ATU E SENSO
AI TEMPE ATU E SENSO
led led led
Timer Sleep Power
I. . ECEIVE
REC1
SW1
P1
LS1
NO
NC
C
DP SM
Fig. 25
buzzer
yellow/green
white
yellow/green
white
red
blue
black
yellow/green
brown
M1
1
white
red
blue
black
yellow/
green
brown
red red
blue
black black
yellow/green
white
yellow/green
white
red
blue
black
yellow/green
brown
M1
1
white
red
blue
black
yellow/
green
brown
LEGEND
Connector
Earth
LPhase
NNeutral
M1 Fan motor(230Vac/50Hz)
SM Louvre motor (230Vac/50Hz)
DP rain pump (230Vac/50Hz)
FS Float switch (NC)
LS1 SM limit switch (60x60 cassette)
Safety switch (90x90 cassette: when opening
the filter panel, the unit will stop)
C1 Heat valve output
C2 Cool valve output
Co Common
P1,P2,..., Pn Terminals
black
11

INSTALLATION, USE AND
MAINTENANCE GUIDE
>>
series
CSVN
HCVN
WIRING DIAGRAM OF 2 PIPE SYSTEM WATER CASSETTE WITH WALL MOUNTED CONTROL (CSVN + HCVN)
WIRING DIAGRAM OF 4 PIPE SYSTEM WATER CASSETTE WITH WALL MOUNTED CONTROL (CSVN + HCVN)
Fig. 27
HIGH MEDIUM LOW L N
brown
red
red red red red red
yellow yellow
black
red
black
black
yellow/green
yellow
black
red L
N
C
Earth
FS
relay 9
relay 4 relay 6
relay 2 relay 1
relay
P2
P18 P19
P20
P26P27
P25 P24 P1 P12
P11
P10
P9 P8 P7 P6 P5 P4 P P2 P1
LCD4
AIR CONTROL
TRANSFORMER
C
DP SM
buzzer
WATER TEMPERATURE SENSOR
AIR TEMPERATURE SENSOR
Electrical supply
2 0Vac/50Hz
Heat/cool valve
2 0Vac/50 Hz
MODE
TEMP
POWER TIMER SLEEP COMP
SW
LV
HR
MIN
START
STOP
SLEEP
MODE
FAN
H
TEMP
COOL
SLEEP
SLEEP
CLOCK
START
STOP
LS1
NO
NC
Fig. 2
HIGH MEDIUM LOW L N
brown
red red red red red red
yellow yellow
black
red
black black
white
yellow/green
yellow
black
red L
N
C1
Earth
relay 9
relay 4 relay 6
relay 2 relay 1
relay
P2
P18 P19
P20
P26P27
P25 P24 P1 P12
P11
P10
P9 P8 P7 P6 P5 P4 P P2 P1
LCD4
AIR CONTROL C
DP SM
buzzer
yellow
N
C2
black
Electrical supply
2 0Vac/50Hz
Heat valve
2 0Vac/50 Hz
Cool valve
2 0Vac/50 Hz
FS
MODE
TEMP
POWER TIMER SLEEP COMP
SW
LV
HR
MIN
START
STOP
SLEEP
MODE
FAN
H
TEMP
COOL
SLEEP
SLEEP
CLOCK
START
STOP
LS1
NO
NC
TRANSFORMER
WATER TEMPERATURE SENSOR
AIR TEMPERATURE SENSOR
red red
blue
black black
M1
1
white
yellow/green
white
red
blue
black
brown
white
red
blue
black
yellow/green
brown
red red
blu
black black
M1
1
white
yellow/green
white
red
blue
black
brown
white
red
blue
black
yellow/green
brown
nero
OPTIONAL:
TEMPERATURE
CONTROLLER
OPTIONAL:
TEMPERATURE
CONTROLLER
LEGEND
Connector
Earth
LPhase
NNeutral
M1 Fan motor 230Vac/50Hz)
SM Louvre motor 230Vac/50Hz)
DP Drain pump 230Vac/50Hz)
FS Float switch NC)
LS1 SM limit switch 60x60 cassette)
Safety switch 90x90 cassette: when opening
the filter panel, the unit will stop)
CHeat/cool valve output
Com Common
P1,P2,..., Pn Terminals
LEGEND
Connector
Earth
LPhase
NNeutral
M1 Fan motor 230Vac/50Hz)
SM Louvre motor 230Vac/50Hz)
DP Drain pump 230Vac/50Hz)
FS Float switch NC)
LS1 SM limit switch 60x60 cassette)
Safety switch 90x90 cassette: when opening
the filter panel, the unit will stop)
C1 Heat valve output
C2 Cool valve output
Com Common
P1,P2,..., Pn Terminals
12

WATER CASSETTES
>>
INSTALLATION, USE AND
MAINTENANCE GUIDE
PART TWO: FOR THE USER
RECCOMENDATION FOR THE USER
READ THE PRECAUTIONS CAREFULLY AND CARRY OUT THE
PROCEDURES CORRECTLY.
- In case of fail re or malf nction, always contact yo r a thorised service
personnel. Any attempt to remove parts, or to maintain the appliance can
expose the user to danger of electrical shock. The cassette does not contain
parts on which maintenance can be carried out by the user.
-In case of relocation, contact service personnel a thorised to carry
o t this operation as well as the new installation
- Do not insert fingers or objects of any kind into airflow o tlets or air
intake grilles. There is a fan inside the appliance, which turns at high speed
and could cause severe personal injury. ay particular attention to children.
- Do not allow the cold airflow to blow on yo directly for long periods
of time. Direct and prolonged exposure to cold air can be dangerous for
your health. ay particular attention to rooms where there are children,
elderly or sick people.
- In case of air conditioner malf nction (e.g. smell of b rning), stop
appliance operation immediately, release the dedicated a tomatic
switch and contact a thorised service personnel. rolonged use of the
appliance in these conditions can cause fire or electrocution.
- D ring installation of the appliances, avoid letting children or disabled
have access to the working area. Accidents can occur.
- Install the appliance and the remote control at least two metres away
from television or radio nits and from lamps that co ld irradiate them
directly. Any interference of radio signals can cause operating problems.
- Do not block or cover the airflow intake and delivery grilles.
The obstruction of these openings causes a reduction of the operating
efficiency of the water cassette, with consequent possible failure or damage.
- Do not se the water cassette for applications s ch as the storage
of foods, plants, precision eq ipment or works of art. The quality of the
objects that are stored could deteriorate.
-Do not expose animals or plants to the direct airflow from the appliance.
rolonged direct exposure to the cold airflow from the water cassette can
have a negative effect on animals and plants.
- Do not direct the airflow of the air conditioner towards fireplaces or
other heating appliances. An airflow directed towards the fire can cause
incorrect combustion and fire.
- Air the room occasionally while sing the appliance. An insufficient
change of air can cause an insufficiency of oxygen in the room.
- Do not allow the air conditioner to come into contact with water. The
electrical insulation could be damaged with consequent possible risk of
electrocution.
WIRING DIAGRAM WITHOUT CONTROL (CSVN)
Fig. 29
High speed (III)
Med. speed (II)
Loe speed (I)
FRONTAL PANEL
Drain pump ele tri al supply
(230Va /50 Hz
black
red
Louver motor ele tri al supply
(movimentazione230Va /50 Hz )
Fan motor ele tri al supply
(230Va /50 Hz)
red
black
black
black
white
black
blue
red
black
red
brown
white
white
black black
black
red
blue
brown
white
black
blue
red
yellow/green
yellow/green
Com
LEGEND
Connector
Earth
M1 Fan motor (230Vac/50Hz)
SM Louvre motor (230Vac/50Hz)
DP Condensate pump (230Vac/50Hz)
FS Float switch (NC)
Com Common
TM Timer
blue
!
-Check installation condition in order to identify possible damage. After
prolonged use, contact specialised service personnel to control the installation
conditions of the air conditioner.
- Do not se flammable gas near the air conditioner.
- Always se the appliance with the air filter installed. Using the air
conditioner without the air filter can cause an excessive accumulation of
dust or deposits inside the unit, with consequent possible malfunctioning.
- Release the a tomatic switch if the nit is not going to be sed for
long periods of time.
- Remove the batteries from the remote control if it is not going to be
sed for a long period of time. Remove the batteries in order to prevent
possible problems caused by loss of electrolyte. In case of accidental contact
of the battery liquid with the skin, eyes or mouth, wash the affected part
immediately with plenty of water, and see a doctor.
- Please sh t off the nit ONLY sing the ON/OFF switch (infrared or
wall-mo nted remote control). If you shut off the unit without using the
ON/OFF switch (ex. change between cool and heat) the condensate pump
stops and an overflowing risk is possible.
FAILURE TO COMPLY WITH THE INSTALLATION INSTRUCTIONS GIVEN IN THIS
MANUAL RELIEVES THE MANUFACTURER OF ALL AND ANY LIABILITY.
INCORRECT INSTALLATION COULD CAUSE MALFUNCTIONING OR FAILURE OF
THE APPLIANCE.
IT COULD ALSO REPRESENT A HAZARD FOR THE USER.
WATER CASSETTE OPERATION
The water cassette has been designed to create the ideal climatic conditions
for the comfort of the occupants of the room. It can provide fully automatic
cooling, dehumidifying and also heating.
The air is drawn in by the fan through the intake grille in the front panel and then
passes through the filter, which retains the dust. The air then proceeds through
the fins of a "heat exchanger": this is a finned coil, which cools and dries or
heats the air.
Finally the fan sends the air into the room; the direction of the outgoing airflow
can be adjusted by means of the motor-driven direction louvre.
13

INSTALLATION, USE AND
MAINTENANCE GUIDE
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series
CSVN
HCVN
Fig. 32
Fig. 33
COOLING When the MODE button is pressed and COOL is selected, the
cassette cools the room and at the same time reduces the humidity in the air.
To start the cooling cycle, use the TEMP buttons and to set a temperature
which is lower than the room temperature. For e ample: if there is a temperature
of 28°C in the room, a temperature lower than 27°C should be set in order for
the cooling to start. The appliance automatically adjusts operating cycles in order
to keep the room at the required temperature. Upon completion of settings,
press the SEND button and listen for the beep to make sure that the appliance
has received the command.
Fig. 35
I.R. REMOTE CONTROL OPERATIONS
FAN When the MODE button is pressed and the FAN mode is selected, the
cassette will operate as an electrical fan only
THE INFRARED REMOTE CONTROLLER
1 Turns the cassette ON or OFF.
2 Selects operating mode following the order given below:
FAN (fan), COOL (cooling), DRY (dehumidying), HEAT (heating), AUTO
(automatic operation)
3 Sets the required temperature between 18°C and 30°C. The temperature
is increased or decreased by pressing and respectively.
4 Selects the fan speed, following the order given below: AUTO (automatic),
HIGH (high), MED (medium), LOW (low)
5Activates the SLEEP function. This function automatically adjusts the
temperature in order to provide ma imum comfort during the nighttime hours
and saves energy.
6 Selects the current time on the remote control display.
7 Increases the hours on the display
8 Increases the minutes on the display
Sets timed switching on
10 Sets timed switching off
11 Confirms the settings to the appliance.
12 Activates or deactivates louvre movement.
13 Adjusts the louvres in order to direct the airflow in the best direction
The unit gives a beep to confirm that it has received each button command correctly.
Battery replacement
When:
- no beep of confirmation is received from the unit;
- the liquid crystal display is not working.
How:
- Pull the cover downwards as shown in the drawing to the side (2 Type AAA
1.5V batteries).
- Insert new batteries paying attention to the + and - symbols.
N.B.: Only use new batteries. Remove the batteries from the remote control
when the water cassette is not used.
_
+
_
+
1,5 V
1,5 V
Fig. 31
DEHUMIDIFYING When the MODE button is pressed and the DRY mode
selected, the cassette alternates cooling and fan cycles. This mode is used to
dehumidify the air without e cessively altering the room temperature.
Operation is fully automatic: the appliance itself controls the fan speed.
Fig. 34
HEATING When the MODE button is pressed and the HEAT mode is selected,
the cassette will heat the room. To start the heating cycle, use the TEMP buttons
and to set a temperature which is higher than the room temperature. For
e ample: if there is a temperature of 18°C in the room, a temperature higher
than 19°C should be set in order for the heating to start. Upon completion of
settings, press the SEND button and listen for the beep to make sure that the
appliance has received the command.
Fig. 30
13
12
5
10
4
3
8
7
1
6
11
2
AUTOMATIC OPERATION Access this mode by pressing the MODE button. In
the AUTO mode the electronic control automatically selects the operating mode
according to the room temperature (measured by the built-in sensor):
- if the room temperature drops below 18°C, the appliance will start the heating
cycle. This will continue until the temperature rises to above 20°C;
14

WATER CASSETTES
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INSTALLATION, USE AND
MAINTENANCE GUIDE
Fig. 36
Fig. 41
ON
OFF
Fig. 42
WARNING!
Do not position the louvres manually
as this may damage the delicate
mechanism that moves them.
!
WALL-MOUNTED CONTROL: CD2/X7
MODE
TEMP
POWER TIMER SLEEP COMP
SW
L
HR
MIN
START
STOP
SLEEP
MODE
FAN
TEMP
COOL
SLEEP
SLEEP
CLOCK
START
STOP
DRY
HEAT FAN
Fig. 43
7
8
9
10
10
1
2
3
4
5
6
11
WARNING! Once the switch on and/or the switch off time is expired, it will be
automatically canceled from the internal memory. Switch on and switch off time
need to be setted each time the user necessitate.
AIRFLOW ADJUSTMENT The SW button activates the louvres and the airflow
is directed alternatel upwards and downwards to obtain even distribution
throughout the room.
N.B.: During cooling they should be positioned horizontally. During heating they
should be directed downwards (as hot air tends to rise).
FAN SPEED ADJUSTMENT When the FAN button is pressed, one of the
following fan speeds can be selected: AUTO - HIGH - MED - LOW. In the AUTO
mode, the electronic control automaticall selects the fan speed according to
the difference between the set temperature and the room temperature. This
function automaticall increases the fan speed if a greater cooling or heating
effect is required.
SLEEP MODE Access this mode b pressing the SLEEP button. The s mbol
will appear on the displa , as shown in the drawing to the side. The SLEEP
mode automaticall adjusts the temperature to make the sleeping environment
more comfortable during the night. During the cooling or dehumidifying modes
the set temperature is increased gradually by 2 C during the first two hours of
operation. During the heating mode the set temperature is decreased gradually
by 2 C during the first 2 hours of operation. Timed switching off can also be set
together with the SLEEP mode.
Fig. 37
TIMED SWITCHING OFF To set timed switching off, the appliance must be on
or the timed switching on function must be set. Press the STOP button and the
corresponding part of the displa starts to blink. Set the time for timed switching
off using the HR and MIN buttons. The subsequent switching on time ma also
be set b pressing the START button and setting the required time using the
HR and MIN buttons. Confirm the new setting b pressing the SEND button and
listen for the beep to make sure that the appliance has received the signal.
Fig. 40
- if the room temperature is above 26°C the appliance will start the cooling c cle.
This will continue until the temperature drops below 24°C.
Fig. 38
SETTING THE CLOCK Press the CLOCK button and the corresponding part
of the displa starts to blink. Set the actual time using the HR (hour) and MIN
(minute) buttons. Once this operation has been completed, confirm the setting
b pressing the SEND button and listen for the beep to make sure that the
appliance has received the signal.
IMPORTANT: Before setting timed switching on, set the required operating mode
and fan speed. Then switch the air conditioner off.
Fig. 39
TIMED SWITCHING ON To set timed switching on, the appliance must be off.
Press the START button and the corresponding part of the displa starts to blink.
Set the time for timed switching on using the HR and MIN buttons. The subsequent
switching off time ma also be set b pressing the STOP button and setting the
required time using the HR and MIN buttons. Confirm the new setting b pressing
the SEND button and listen for the beep to make sure that the appliance has
received the signal.
!
1Selects the operating mode in the order given below: FAN (fan), COOL
(cooling), DRY (dehumidif ing), HEAT (heating), AUTO (automatic operation)
2Sets the required temperature between 18°C and 30°C. The temperature
is increased b pressing and .
3FAN Selects the fan speed in the order given below: AUTO (automatic), H
(high), M (medium), L (low)
15

INSTALLATION, USE AND
MAINTENANCE GUIDE
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series
CSVN
HCVN
4Activates the SLEEP mode. This mode automatically adjusts the temperature
in order to provide maximum comfort during the nighttime hours and save
energy.
5ncreases the hours on the display.
6ncreases the minutes on the display.
7Turns the cassette ON or OFF.
8Activates or deactivates louvre movement (optional).
9Adjusts the louvres in order to direct the airflow in the best direction (optional).
10 Selects the exact time on the remote control display.
11 Sets timed switching off.
12 Sets timed switching on.
WALL-MOUNTED CONTROL OPERATIONS
Self-d agnos s
The system comes with a self-diagnosis circuit to monitor the microprocessor
functions. n the event of malfunction this circuit automatically resets the
microprocessor.
System memory
The system stores the set parameters (such as the operating status, fan speed,
etc.) in its non-volatile storage. After a power failure, the cassette will automatically
resume operation with the same parameters that were set prior to the blackout
(except the SLEEP and TIMER modes which will be erased). Any change to the
parameters will be saved in the non-volatile storage after 5 seconds.
S tuat on of normal operat on
The POWER indicator light is on if the cassette was switched on via the .R.
remote control.
The TIMER indicator light is on if the AUTO START and AUTO STOP modes
are active.
The SLEEP indicator light shows the temperature compensation during the
SLEEP mode.
Situation of alarm
1) The POWER, SLEEP and TIMER indicator lights blink continuously. The
system is protected by the cutting off of power to all the outputs.
This type of alarm is generated by two events:
a) Condensate drain pan float:
Remedy: check the condensate drainage circuit (pump, float, drain hoses).
b) Coil water temperature above 80 °C.
Remedy: check coil water temperature.
2) POWER indicator light blinks continuously. This type of alarm is generated
by two events:
a) When 3 minutes have elapsed from the start of the COOL or DRY cycles,
coil temperature is above 25° C. The system is protected by the cutting off
of power to the valve output.
Remedy: check the coil water temperature and correct valve operation.
b) When 3 minutes have elapsed from the start of the HEAT cycle, coil
temperature is not above 20° C. The system is protected by the cutting off
of power to the valve output.
Remedy: check the coil water temperature and correct valve operation.
3) TIMER indicator light blinks continuously (fig. 44 A):
Air temperature sensor and water temperature sensor are damaged or not
connected.
4) TIMER indicator light blinks intermittently (fig. 44 B): the filters must be
cleaned.
When the cassette has been operating for more than 500 hours, a warning is
displayed as a reminder to clean the filter.
N.B. Reset by cutt ng off the power for at least 10 seconds.
ON
OFF
ON
OFF
B
A
F g. 44
!
satisfied, or within 3 minutes preceding cycle start: when the water reaches the
float, its contact opens and activates the pump for 3 minutes; when the 3 minutes
have elapsed, if the float does not close its contact again (water drainage), the
unit shows an alarm (fast blinking of the indicator lights).
Dry  As for cool.
Heat - Unit in operation or switched off by remote control: the pump is never
activated.
Fan  As for heat.
Cool-heat (automat c)
f the unit is in the cool mode, the pump follows the cool operation.
f the unit is in the heat mode, the pump follows the heat operation.
PRE-HEATING FUNCTION
Pre-heating function is used to avoid cold air in HEAT mode when the valve is
open. The valve remains open also if within 3 minutes the coil temperature has
not reached the 35°C
LOW
SET
0 5 10 30
FAN
SPEED
F g. 45
15 20 25 35
OFF
40 45 5023 °C
CO L TEMPERATURE [Ti]
ONDENSATE DRAIN PUMP OPERATION SPECIFICATIONS
Cool  Unit in operation: the pump operates continuously until the set temperature
is reached; when 3 minutes have elapsed from the start of the cycle, if the water
reaches the float and opens its contact, the unit instantly shows an alarm through
the fast blinking of the indicator lights Con the panel (the power is cut off to all
the outputs). Unit switched off by remote control, or with set temperature
f Ti<23°C, fan is OFF.
f 23<Ti<35°C, fan runs at minimum speed
f Ti>35°C, fan runs at setted speed.
ELECTRICAL CHARACTERISTICS
 Power supply 1Ph from 185 to 255 VAC, 50/60Hz
 Power consumption Less than 8 VA in stand-by
 Valve activation time delay 3 minuts ± 5 seconds
Temperature:
 Room temperature accuracy ±1°C
 Coil temperature accuracy ±2°C
 Storage temperature 0¸70°C
 Operating temperature 10¸80°C
 Setting temperature range 18¸30°C (+1°C step)
 ON/OFF temperature differential 1°C
DETAILS OF WALL-MOUNTED CONTROL
The following commands be given by the buttons on the eall-mounted control.
Sw tch ng on/off
Press the POWER button to switch the cassette on or off. When the system
has been switched on, it will operate according to the settings shown on
the display. The POWER indicator light on the display comes on.
Fan
Press the FAN button to select the fan speed (high, medium, low or auto
mode). The display instantly shows the operating status.
Auto mode
When the fan speed is set in the auto mode, the speed is adjusted
automatically according to the difference between the room temperature
and the set temperature:
 f the difference is 3°C or more, the speed is HIGH;
 f the difference is 2°C, the speed is MEDIUM;
 f the difference is 1°C or less, the speed is LOW;
Note: the FAN button is only active in the FAN, COOL, HEAT and AUTO
modes. t cannot be used in the DRY (dehumidifying) mode.
OPERATING MODE
FAN
The writing FAN appears on the air-conditioner control display. n this mode
the unit operates as a fan only. The SLEEP, TEMP and TEMP buttons
are not used.
AUTO H GH MED UM LOW F g. 46
FAN COOL DRY HEAT AUTO
F g. 47
16

WATER CASSETTES
>>
INSTALLATION, USE AND
MAINTENANCE GUIDE
COOL
The writing COOL appears on the air-conditioner control display. The unit
operates in the air-conditioning mode.
- the zone valve starts if Troom Tset+1
- the zone valve stops if Troom Tset
In any case activation of the zone valve is subject to minutes delay each
time it stops.
DRY
The writing DRY appears on the air-conditioner control display. The unit
operates in the dehumidifying mode to reduce the percentage of humidity
in the room.
HEAT
The writing HEAT appears on the air-conditioner control display.
The unit operates in the air-conditioning mode.
- the zone valve starts if Troom Tset+1
- the zone valve stops if Troom Tset
In any case activation of the zone valve is subject to minutes delay each
time it stops.
AUTO
The writings COOL and HEAT appear on the display simultaneously.
Temperature setting
The setting temperature can be set in the range of 18°C- 0°C by pressing
TEMP and TEMP buttons. The LCD on the display unit will show the
setting temperature.
Louvre swing (optiona )
Press the SW button to start/stop louvre swing.
Louvre direction adjustment (optiona )
Press the LV button to change the angle of the louvres (which are controlled
by the louver motor):
- if the button is pressed and released, the angle of the louvres is changed
very slightly.
- if the button is pressed and held, the angle of the louvres continues to
change until the button is released;
SLEEP
Press the SLEEP button to start the sleep function. The symbol appears
on the display. In the cooling mode, the set temperature is automatically
raised by 1°C after one hour. Similarly in the heating mode, the temperature
is decreased by 1°C after one hour.
 Press the MIN button to set the minutes;
 Press the START button again. The display stops blinking.
To cancel this function, press the START button again.
Automatic stop
The cassette can be programmed in advance to switch off.
 Press the STOP button until the time in the STOP section of the display blinks;
 Press the HR button to set the hour;
 Press the MIN button to set the minutes;
 Press the STOP button again. The display stops blinking.
To cancel this function, press the STOP button again.
WARNING! Once the switch on and/or the switch off time is expired, it wi be
automatica y cance ed from the interna memory. Switch on and switch off time
need to be setted each time the user necessitate.
TIPS FOR BEST USE
- Connect the cassette to a dedicated power socket protected by a
magnetothermal circuit breaker of suitable capacity for the electrical input
of the appliance.
- When the water cassette starts or stops, especially in the heating mode,
creaking sounds may be heard. This is caused by thermal expansion of the
unit parts.
- Mist may sometimes be produced by the cassette for a few seconds in the
cooling mode. This is quite normal and is caused by the difference in
temperature between the air flowing out of the appliance and the air in the
room.
- Do not place heat sources near to the cassette as this could deform the
plastic parts.
- Do not insert objects into the air intakes or outlets when the cassette is in
operation.
- Do not place objects in a position that may obstruct the passage of the air
into the unit as this could affect appliance efficiency.
ENERGY SAVING
- Do not open or close doors and windows too often. Constant exchange of
heat with the outside affects the working of the appliance.
- Do not set too high a temperature (in the heating mode) or too low (in the
cooling mode).
- Do not install the appliance where it is exposed to direct sunlight.
- Use the TIMER for the timed switching on of the appliance, to avoid the
cassette operating needlessly while you are out of the house.
- Use the SLEEP function during the night.
ROUTINE MAINTENANCE
ATTENTION!
Turn off the automatic circuit breaker before carrying out any c eaning
operations. Use a c oth dampened with ukewarm water (max 40°C) and
mi d detergent to c ean the cassette. Do not use so vents or harsh detergents.
OPENING THE PANEL
To open the grille turn the plastic screws present on the grille by 90° (1/4 of a
turn) (fig. 49) and gently pull the panel downwards without forcing the hinges
that fasten it to the appliance. Attention: to make cleaning easier, the grille may
be removed completely since the receiver panel is positioned on the fixed frame
of the unit (see fig. 50).
22.0
2 .0
0 1 2 HOURS
ROOM TEMPERATURE
SLEEP MODE START
COOLING MODE
Increase of 1°C
after 1 hour
Fig. 48
!
Note:
- when the system is set in the SLEEP mode, press the SLEEP button to
cancel the function;
- when the system is set in the SLEEP mode and the TEMP button is
pressed, it increases the temperature from the last settin by 1°C;
- when the system is set in the SLEEP mode and the cassette is turned off
(also due to power failure), the SLEEP function is cancelled.
C ock
To set the clock:
 Press the  button until the display blinks;
 Press the HR button to set the hour;
 Press the MIN button to set the minutes;
 Press the  again. The time display stops blinking.
Automatic start
The cassette can be programmed in advance to switch on.
 Press the START button until the time in the START section of the display
blinks;
 Press the HR button to set the hour;
Fig. 49
Fig. 50
17

INSTALLATION, USE AND
MAINTENANCE GUIDE
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series
CSVN
HCVN
FILTER CLEANING
Filter cleaning is essential for the good appliance efficiency.
1 Remove the filters by pulling them gently side ays and pressing lightly on
the points sho n in fig. 51.
2 Clean the filters ith a vacuum cleaner or ash them ith luke arm ater
and mild detergent.
3 Make sure the filters are dry before replacing them in the appliance.
ATTENTION! Do not expose the filters to sunlight.
TROUBLESHOOTTING
1 If the appliance does not switch on check:
- that the mains supply is reaching the unit;
- that the plug is properly inserted;
- if the circuit breaker has tripped;
- if there been a failure in the mains supply.
2 If the cooling (or heating) effect seems less than normal check:
- that the temperature has been set correctly;
- if a indo or door has been opened;
- the filters for clogging;
- for obstacles that prevent the free circulation of air;
- if the cassette is exposed to direct sunlight.
Fig. 51
N.B.: Never operate the cassette without the air filters.
END OF SEASON MAINTENANCE
- Clean and replace the filters.
- On a sunny day leave the cassette running in fan mode for a fe hours to
allo the inside of the unit to dry completely.
- Remove the plug or turn off the automatic circuit-breaker.
Fig. 52
4
3
2
!
!
18

Air Design reserves the right to make changes in design or specification to products without notice or
obligation and to change or discontinue models.
WATER CASSETTES I CSVN-HCVN 0000 0505 AUS 01
Air Design Pty. Ltd.
45 Nestor Drive, MEADOWBROOK - QLD 41 1
Tel. [phone] - Fax. [phone]
Web. www.airdesign.com.au - Email. [email protected]