Technibel MW 2 Owner's manual

F
GB
I
E
D
DOSSIER TECHNIQUE
TECHNICAL INSTRUCTIONS
DOSSIER TECNICO
MANUAL TÉCNICO
TECHNISCHE DOKUMENTATION
MW
UNITES TERMINALES MURALES
WALL TYPE TERMINAL UNITS
UNITÀ TERMINALI MURALI
UNIDADES TERMINALES TIPO MURAL
WANDGERÄTE-WASSERGEKÜHLT
Froid Chaud
Cooling Heating
Freddo Caldo
Frio Calefaccion
Kalt Warm
MW 2 - 2 100 W - 2 700 W
MW 3 - 2 800 W - 3 500 W
MW 4 - 4 000 W - 5 100 W
MW 5 - 5 200 W - 6 500 W
Janvier 1996 10 12 088 - F.GB.I.E.D - 01

2
GB
• This equipment is intended for the air-conditioning of premises and to provide comfort for the personnel.
FUNCTIONS
• Cooling or heating by means of a 2-pipe water coil.
• Ventilation with filtration (built-in filter).
RANGE
• There are 4 models with different capacities in the MW range.
• The air handler is supplied with its room thermostat.
• A condensate drain pump system is a factory-fitted accessory.
APPLICATIONS
• This range of air handlers, stemming directly from the direct expansion range, is characterised, thanks to its wall-mounting
configuration, by:
- attractiveness,
- compactness (using unused spaces),
- a low sound level.
1 - APPLICATION - USE
TECHNICAL INSTRUCTIONS
CONTENTS
TECHNICAL INSTRUCTIONS
INSTALLATION INSTRUCTIONS
1 - Application - Use........................................................................................................2
2 - Description.................................................................................................................3
3 - Physical characteristics .............................................................................................4
4 - Performances.............................................................................................................4
5 - Control .......................................................................................................................6
6 - Accessories................................................................................................................6
1 - General ......................................................................................................................7
2 - Introduction ................................................................................................................7
3 - Installation..................................................................................................................7
4 - Connections.............................................................................................................10
5 - Starting.....................................................................................................................14
6 - Maintenance ............................................................................................................15
7 - Wiring diagram.........................................................................................................15
MARKING
This product marked conforms to the essential requirements of the European Directives:
- Low voltage no. 73/23 EEC, modified 93/68 EEC,
- Electromagnetic Compatibility no. 89/336 EEC, modified 92/31 and 93/68 EEC.

3
GB
2 - DESCRIPTION
Model
Tangential fan
Electric motor
with internal thermal protection
Power supply 230 V / 1 + T / 50 Hz
Number of speeds
Copper / Aluminium exchanger
Number of rows
Hydraulic connection Copper
PER
Water capacity litres
Condensate drain pump (accessory)
Air filter (washable)
MW 2
●
●
●
3
●
2
10/12
10/12
0.9
●
●
MW 3
●
●
●
3
●
2
10/12
10/12
0.9
●
●
MW 4
●
●
●
3
●
2
14/16
13/16
1.2
●
●
MW 5
●
●
●
3
●
2
14/16
13/16
1.2
●
●
• Plastic body.
• P.E.R. piping.
1
6
2 45 3
MW 4
MW 5
1- Air inlet (suction)
2- Air outlet (blowing)
3- Vertical deflection louvre control switch
4- Motorised vertical deflection louvre
5- Manual horizontal deflection louvre
6- Air filters
24
1
6
35
MW 2
MW 3

4
GB
3 - PHYSICAL CHARACTERISTICS
Model
Total cooling capacity LS kW
(1) MS kW
HS kW
Sensible cooling capacity LS kW
(1) MS kW
HS kW
Pressure drop on water in cooling mode kPa
(1) (10 kPa = 1 m W.G.)
Heating capacity LS kW
(2) MS kW
HS kW
Pressure drop on water in heating mode kPa
(2) (10 kPa = 1 m W.G.)
Air flow rate LS m3/h
MS m3/h
HS m3/h
Characteristics of fan motor
230 V / 1/ 50 Hz (3) W
(4) A
Maximum power input W
(with condensate pump)
Maximum current A
Sound power level LS dB(A)
(5) MS dB(A)
HS dB(A)
Sound pressure level (at 2.5 m indoors) LS dB(A)
(5) MS dB(A)
HS dB(A)
MW 2
1.4
1.5
2.1
1.3
1.5
1.5
3
2.2
2.4
2.7
2.4
325
370
430
28
0.13
54
0.25
40
45
49
22
27
31
MW 3
2.4
2.6
2.8
1.7
1.9
2.1
5
2.9
3.2
3.5
4.1
325
370
430
28
0.13
54
0.25
40
45
49
22
27
31
MW 4
3.3
3.7
4
2.3
2.7
2.9
11
3.8
4.5
5.1
9
495
630
760
72
0.30
98
0.45
46
51
54
28
33
36
MW 5
4.6
4.9
5.2
3.2
3.5
3.8
17
5.5
6
6.5
13.8
665
760
855
86
0.39
112
0.5
54
57
58
36
39
40
4.1 NOMINAL CONDITIONS
3.1 WEIGHT Air handler
MW 2
MW 3
MW 4
MW 5
Packed weight (kg)
13
13
17.7
17.7
Net weight (kg)
10
10
13.5
13.5
3.2 DIMENSIONS
MW 2
MW 3
MW 4
MW 5
L
810
810
1000
1000
H
360
360
360
360
P
180
180
205
205
LP
H
°C
20
15
30
25
312
117
71
Thickness : 27.5 mm
4 - PERFORMANCES
(1) Air inlet: 27°C (DB) / 19°C (WB) ; water: inlet at 7°C at high speed, outlet at 12°C
(2) Air inlet: 20°C; water inlet: 50°C (same flow-rate as under other conditions(1)).
(3) Max. power consumption (at high speed).
(4) Max. current consumption (at high speed).
(5) Without condensate pump accessory.
Note :
Maximum water inlet
temperature: 60°C

5
GB
4.2 COOLING PERFORMANCES
Water inlet
50°C 35°C
Fan speed
LS
MS
HS
LS
MS
HS
LS
MS
HS
LS
MS
HS
2.2
2.4
2.7
2.9
3.2
3.5
3.8
4.5
5.1
5.5
6
6.5
MW 2
MW 3
MW 4
MW 5
Model P tot Dve Pdc
356
486
695
887
2.4
4.1
9
13.8
1.1
1.2
1.3
1.4
1.6
1.8
1.9
2.2
2.5
2.7
3
3.2
P tot
356
486
695
887
2.6
4.4
9.7
14.8
Dve Pdc
P tot : Total cooling capacity in kW.
Dve : Water flow rate in litres/hour (corresponding to nominal conditions - § 4.1).
Pdc : Pressure drop on water in kPa (1 m W.G. = 10 kPa).
7/14°C 7/12°C
P tot P sens Dve Pdc
Fan speed
LS
MS
HS
LS
MS
HS
LS
MS
HS
LS
MS
HS
0.9
0.9
1
1.2
1.2
1.3
1.9
2
2.2
2.6
2.7
2.9
MW 2
MW 3
MW 4
MW 5
Model
0.9
0.9
1
1.2
1.2
1.3
1.7
2
2.2
2.3
2.5
2.9
125
162
274
351
0.5
1
2
3
1
1.1
1.1
1.5
1.9
2
2.4
2.7
2.9
3.3
3.5
3.7
1
1.1
1.1
1.5
1.9
2
2.4
2.7
2.9
3.3
3.5
3.7
196
345
496
634
1
3
6
10
P tot P sens Dve Pdc
AIR INLET 24°C, 50% RH
Water temperatures (*)
7/14°C 7/12°C
P tot P sens Dve Pdc
Fan speed
LS
MS
HS
LS
MS
HS
LS
MS
HS
LS
MS
HS
1.1
1.2
1.3
2
2.1
2.2
2.7
3
3.2
3.8
3.9
4.1
MW 2
MW 3
MW 4
MW 5
Model
1.1
1.2
1.3
1.5
1.7
1.8
2.1
2.4
2.7
2.9
3.1
3.3
155
275
392
502
1
2
4
6
1.4
1.5
2.1
2.4
2.6
2.8
3.3
3.7
4
4.6
4.9
5.2
1.3
1.5
1.5
1.7
1.9
2.1
2.3
2.7
2.9
3.2
3.5
3.8
356
486
695
887
3
5
11
17
P tot P sens Dve Pdc
AIR INLET 27°C, 47% RH
P tot : Total cooling capacity in kW
P sens : Sensible cooling capacity in kW
Water temperatures (*)
Dve : Water flow rate in litres/hour
Pdc : Pressure drop on water in kPa (1 m W.G. = 10 kPa)
4.3 HEATING PERFORMANCES
(*) Calculated with the high fan speed, water flow constant for the 3 speeds.

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GB
5 - CONTROL
• Control by "On/Off" action on ventilation.(Operation of the on-off valve, not supplied, is possible).
• Provided by an electronic room thermostat supplied with each air handler (connection not included).
CHARACTERISTICS OF THE ROOM THERMOSTAT
6 - ACCESSORIES
6-1 CONDENSATE DRAINAGE SYSTEM
• Factory-fitted accessory.
• Oscillating piston electromagnetic type pump with float
detection unit controlling the 3 levels of operation (On/Off/
Safety).
• If the water is not discharged correctly, a safety device
prevents the fan from operating.
MW 2 MW 3 MW 4 MW 5
5543
*Under nominal operating conditions (at high speed).
6.2 REMOTE TEMPERATURE PROBE
for room thermostat
• Enables the control thermostat to be put outside the premises to be air-conditioned.
• This temperature probe (CTN type - 33 ký) comes in an attractive, unobtrusive, wall-
mounted plastic case (protection class IP30).
Supply voltage : 230 VAC
Control differential : 0.4 K ± 0.1 K
Operating temperature : 0 / 40°C
Protection class : Cl. II
Interference immunity : Level 4 CEI 801-2 and 801-4
°C
20
15
25
30
1
2
3
Indicator light Temperature setting
knob
(15 to 30°C)
3-position
speed selector
switch
On/Off
switch
• It is possible to invert the direction of action of the room
thermostat (cooling or heating) by connecting an external
contact (not included), for example, from the hydraulic
module (MH).
The same contact can control several room thermostats
provided the length of the control wire to each room ther-
mostat does not exceed 150 m.
• Available as an accessory: Remote temperature probe.
CAUTION: This device requires regular specific maintenance.
Discharge
height in m
(W G) *

7
GB
INSTALLATION INSTRUCTIONS
1 - GENERAL
• The equipment must be installed, started-up and maintained by authorised and qualified personnel, in accordance with local
rules and professional standards.
1.1 GENERAL SUPPLY CONDITIONS
• Generally speaking, the material is transported at the consignee's risk.
• The consignee must immediately provide the carrier with written reserves if he finds any damage caused during transport.
1.2 VOLTAGE
• Before any operation, check that the voltage and the frequency indicated on the device corresponds with that of the mains.
• See § 2 above of the Technical Manual.
Accessory Qty Use
1Wall support for the internal
unit.
2 - Instructions 2 • Installation instructions.
• Operating instructions.
3 - Plugs 10
4 - Hydraulic
adaptors 2 + 2 Adaptorsforconnectionwith
copper or PER pipes
1 - Support plate
For fixing the support plate
and remote control.
ACCESSORIES SUPPLIED WITH THE UNIT
Accessory Qty Use
5 - Large screws 12 For fixing the support plate
withtheplugsandtheremote
control.
16 - Room
thermostat Regulation and control
°C
20
15
25
30
1
2
3
7- Trim 1 Finger plate for the hole in
the wall.
9 - Insulation 1 Insulation connections
8 - Filters 5Spare parts
(only with units fitted with a
pump)
2 - DESCRIPTION
3 - INSTALLATION
3.1 CHOOSING THE LOCATION
Select the location for the unit on the basis of the following
criteria:
• Thedeviceisintendedforinstallationinshelteredpremises.
Do not install in very damp places or exposed to projec-
tions of water (e.g., laundry rooms).
• Do not install next to electric connections.
• The air intake and blowing grilles must be free from any
obstacle so that blowing can occur correctly in the whole
room.
• The wall on which the air handler will be fixed must be
sufficiently thick for there not to be any resonance and so
as not to produce any noise.
• Provide for the pipes and electric cables.
• It is essential to leave the clear space around the unit (see
drawing opposite).
MW 2
MW 3
MW 4
MW 5
A (mm)
1 150
1 150
1 310
1 310
B (mm)
760
760
760
760
Equipment
B
150
150
250
A
150

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GB
3.2 INSTALLATION OF THE SUPPORT PLATE
Support plate cover
50 30
360
30
60
Guide arrows
20 105 75 20
35
155 380
760
MW 2
MW 3
800
80 mm dia. hole
32
D F
Ø 5
E
1 000
60
360
38
Hole Ø 80 mm
Guide arrows
MW 4
MW 5
A- Afterdecidingon thepositionof the internalunit, position thesupportplate according
totheoveralldimensionsoftheunit andreferring tothe measurementsonthedrawing
opposite.
B- Mark and dot punch the six 5 mm dia. fixing holes.
C- Make the hole for the pipes (see § 4.2):
- either by removing the cover (see sketch) for pipes entering through the side,
- or by positioning the 80 dia. hole (lining up on the arrow) and by making it (see
3.3) for pipes entering through the rear of the handler.
D- Drill the six 32 mm deep, 5 mm dia. fixing holes.
E- Put the 6 plugs in the 5 mm dia. holes.
F- Fix the support plate on the wall using the six 4 x 16 screws.

9
GB
Drill
Drill
80 mm dia.
bell saw
attachment
Inside
Inside
Outside Outside
B
AWall Wall
3.3 DRILLING THE HOLES FOR THE PIPES
(for pipes entering through the rear of the air handler)
• Using an 80 mm dia. bell saw attachment, drill a hole in the wall for the pipes.
C
A- Start drilling (at a slight
angle) from the inside. B-
Completethedrillingfrom
the outside, keeping to
the same angle.
C- Put in a plastic tube and adapt it to suit. Fix the trim
which is part of the equipment.
3.4 HOOKING OF THE INTERNAL UNIT
• Remove the foam packing-pieces in the baffle.
5 - 10 mm
Trim
Hooking
• Hook the air handler on the support
plate according to the sketch
opposite.
• Connect the water pipes (see § 4).
• Run in any electric cables (see § 4).
• Then,pressonthebottom ofthe unit
inorderto engagethebottom hooks
in the holes in the support plate.
• Remove the setting wheel in order to reveal the ther-
mostat cover fixing screw.
• Remove the cover.
• Fix the thermostat using 2 screws (dimensions in
accordance with sketch opposite).
POSITIONING THE THERMOSTAT
• Fixing height: approx. 1.50 m above the floor.
• Avoid draughts from doors and windows.
• Also make sure that the thermostat is in the premises'
normalconvectioncurrents, andthatit is notfitted inside
shelving or covered by curtains.
• Allunwantedheat sourcesadverselyaffect control;avoid
therefore sunlight, the proximity of supplementary
heaters, lights, chimneys, television sets, etc...
869 36
113
8,5
53,55
67
3.6 FIXING THE ROOM THERMOSTAT
3.5 UNHOOKING THE INTERNAL UNIT
• In order to unhook the unit from the support plate, push the unit upwards and pull
it towards you.The hooks are then released from the support plate.
80 mm dia.
bell saw
attachment

10
GB 4.1 CONNECTING THE CONDENSATE DISCHARGE PIPE
(For air handlers which can operate in cooling mode)
• Connect the condensate pipe to a discharge pipe.
• Fix the two pipes using adhesive tape:
- MW 2, MW 3: Ø 18 mm.
- MW 4, MW 5: Ø 26 mm.
• For air handlers equipped with a condensate lift system, the pump discharge is
connectedtoa flexible PVCpipeof internaldiameter6 mm, equippedwitha splined
connector.
See the "Technical Manual" for the pressures available at the discharge.
4 - CONNECTIONS
Condensate
discharge
Adhesive
tape
4.2 HYDRAULIC CONNECTION
• MW can be connected either with metric copper pipe or with PER
(interlaced polyethylene).
• Diameter of the pipes to be used:
- MW 2 and MW 3:
- copper pipe 10/12 or
- PER pipe 10/12
- MW 4 and MW 5:
- copper pipe 14/16 or
- PER pipe 13/16
• Adaptors for copper pipe or PER pipe are supplied with the air handler.
Trap
Condensate discharge
pipe
Immersion
Slope
IMPORTANT NOTE
• If the end of the condensate discharge pipe goes into the
water and forms a trap, the flow will not be correct and the
condensate will flow in the internal unit (see drawing
opposite).
• Check that the condensate is discharged smoothly.
• Seal the hole in the wall through which the pipes pass in
order to prevent water entering.
• Usingabottle, pour waterintothe condensatetrayin order
to ensure that the water is correctly discharged.
4.2.1 ORIENTATION OF THE PIPES
2
Copper pipe
P.E.R. pipe
• For orientations 1 cut the plate (in
order to put the pipes through leaving
thecontourfree fromanyroughness).
• Keep the piece of plate cut for possi-
ble later use.
1Cover
Sealing
compound