Air Design CSV21N Operating instructions

INSTALLATION, USE AND
MAINTENANCE GUIDE
>>
WATER CASSETTES MI CSVN-HCVN 0000 0505 AUS 01

INSTALLATION, USE AND
MAINTENANCE GUIDE
>>
series
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

WATER CASSETTES
>>
INSTALLATION, USE AND
MAINTENANCE GUIDE
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

INSTALLATION, USE AND
MAINTENANCE GUIDE
>>
series
CSVN
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
>>
INSTALLATION, USE AND
MAINTENANCE GUIDE
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
5

INSTALLATION, USE AND
MAINTENANCE GUIDE
>>
series
CSVN
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

ON
OFF
WATER CASSETTES
>>
INSTALLATION, USE AND
MAINTENANCE GUIDE
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

INSTALLATION, USE AND
MAINTENANCE GUIDE
>>
series
CSVN
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
>>
INSTALLATION, USE AND
MAINTENANCE GUIDE
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