Page 1
INSTALLATION, OPERATING AND
MAINTENANCE MANUAL
CENTRIFUGAL FAN COIL UNIT
ALLEGRA II
0,6 - 6,7 kW
105 - 1500 m3/h
www.lennoxemea.com
ALLEGRA2-IOM-1901-E
Page 2
INTRODUCTION
2
RECOMMENDATIONS
TRANSPORTATION, RECEIVING, HANDLING
SAFETY RULES
GENERAL DIMENSIONS
DIMENSIONAL CHARACTERISTICS
MAIN COMPONENTS
RECOMMENDATIONS FOR INSTALLATION
FAN COIL INSTALLATION
WATER CONNECTIONS
Connection to the water mains
Condensate water drainage
FOR INSTALLER
ELECTRICAL CONNENCTION
CONNECTIONS TO THE TERMINAL BOARD
Without control panel
With control panel
2
2
2
3
3
4
4
5
6
6
7
7
7
CHANGING THE MOTOR SPEED OF ROTATION
TESTING THE FANCOIL
TURNING THE COIL
OPERATING LIMITS
USING THE APPLIANCE
Using the control panel
CLEANING AND MAINTENANCE
Ordinary maintenance
Cleaning the air fi lter
FOR USER
Cleaning the housing and the control panel
WHAT TO DO IF...
DISMALTING THE APPLIANCE
8
19
19
19
20
21
22
22
22
22
23
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
• 1 •
Page 3
INTRODUCTION
This installation, operation and maintenance booklet should always accompany the fancoil ready consultation by the installer or user if
necessary. The appliance should be installed in compliance with regulations in force in each country and according to the manufacturer’s
or qualifi ed installer’ instruction. The manufacturer cannot be held liable for any damage to property or injury to persons and animals
caused by incorrect installation of the appliance. Only qualifi ed persons should install the appliance and connect it to the mains electricity
supply. Before carrying out any work on the appliance, ensure that it disconnected from the electricity supply. Read this instruction booklet
before installing the appliance.
RECOMMENDATIONS
The appliance is easy to use, ut it is important to read this guide completely before using for the fi rst time.
This will help you:
- use the appliance in all safety;
- obtain best performance;
- avoid errors;
- respect the environment.
- Do not allow children or unassisted handicapped persons to use the appliance.
- Do not touch the appliance with wet parts of the body or if barefoot.
- Do not tug, pull or twist electrical cables attached to the appliance, even when disconnected from the electricity supply.
- Do not open the fl aps giving access to the internal parts of the appliance without having fi rst put the system on-off switch to “off”.
- Do not introduce sharp pointed objects through the air intake and outlet grilles.
- Do not leave packing material (cardboard, staples, plastic bags, etc.) within reach of children since they could be a source of danger.
- Dispose of correctly.
- Do not sit or climb on the appliance or rest any type of object on it.
- Do not spray or throw water directly on the appliance.
- Do not use the appliance in places with suspended dust/powder or in potentially explosive atmospheres, in very damp environments or
in the presence of oil in suspension or in particularly aggressive atmospheres.
- Do not cover the appliance with objects or drapes that even partially obstruct the air fl ow.
- The appliance works by electricity at mains voltage (230 Vac, 50 Hz). Always bear in mind that mains voltage is potentially dangerous and
any appliance connected to it should be used with caution. Before carrying out any work on the appliance, disconnect it from the electricity
supply (by pulling out the plug from the mains socket or isolating the supply line by putting the on-off switch to off).
- If the appliance is not to be used for long periods, make sure that the controls are in the position 0 (off). If the appliance is not going to be
used in winter when temperatures are near to freezing, drain the system and ensure that the appliance heat exchanger has no water in it
in order to prevent the formation of ice and consequent breakage.
- To make the appliance inoperable, disconnect it totally from the electricity supply.
- It is unsafe to alter or try to alter the characteristics of this product. Any tampering or alteration renders the warranty null and void.
- In the event of malfunction or failure, do not try to repair the appliance yourself; contact a qualifi ed technician. Repairs carried out by
unqualifi ed persons could cause damage or accidents.
- Always keep the appliance clean. In particular clean the air fi lter periodically (at least once a month).
FAILURE TO COMPLY WITH THE ASSEMBLY INSTRUCTIONS GIVEN IN THIS GUIDE RELIEVES THE MANUFACTURER OF ALL AND ANY LIABILITY.
INCORRECT INSTALLATION COULD CAUSE MALFUNCTIONING OR FAILURE OF THE APPLIANCE. COULD ALSO REPRESENT A HAZARD FOR
THE USER.
TRANSPORTATION, RECEIVING, HANDLING
The appliance is dispatched enclosed in special protective
packaging, which should be kept intact until the appliance is
positioned in the fi nal place of installation.
The appliance should be handled with extreme care, always keeping
it in its original packaging.
To take the appliance out of the packaging, proceed as Pic. 1:
1
2
3
1. Turn the fan coil box upside down and open the bottom.
2. Remove the polystyrene fi lling and keep it.
3. Keeping the bottom of the box open, turn the pack 180°, taking
care that the contents are fi rmly hald before resting it gently on
the ground. Lift off the packaging from the appliance..
SAFETY RULES
Secure packs during
transportation.
Do not tread on packs.
Protect hands with work gloves
when dismantling the appliance.
01
• 2 •
Do not expose to the
elements.
Work in PAIRS if the applinance
weighs more than 25 kg.
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
Page 4
110
233
122
135 135
A
L
25
3535
509
192
218
529
243
200
36
342
10438
123 18
20
25
232
14
190
GENERAL DIMENSIONS
* NOTE: the dimensions shown are referred at system with left hydraulic connections
DIMENSIONAL CHARACTERISTICS
02
2 PIPE SYSTEM
Number of fans
Number of coils
Coil used for
cooling and
heating
Number of rows
Water content Liter
Hydraulic connection
(Ø Gas female)
General features
Unit lenght with cabinet
Unit lenght without cabinet
4 PIPE SYSTEM
Number of fans
Number of coils
Number of rows
Coil used for
cooling
Coil used for
heating
General features
2 PIPE SYSTEM
Number of fans
Number of coils
Coil used for
cooling and
heating
General features
Water content Liter
Hydraulic connection
(Ø Gas female)
N. rows
Water content Liter
Hydraulic connection
(Ø Gas female)
Unit lenght with cabinet
Unit lenght without cabinet
Number of rows
Water content Liter
Hydraulic connection (Ø Gas female)
Unit lenght with cabinet
Unit lenght without cabinet
10 20 30 40 50 60 70 80 90 100
1112222344
1111111111
3333333333
0,5 0,8 1,2 1,5 1,8 2,1 2,4 2,4 2,7 3,1
Ø
1/2” 1/2” 1/2” 1/2” 1/2” 3/4” 3/4” 3/4” 3/4” 3/4”
L (mm)
M (mm)
600 750 900 1050 1200 1350 1500 1500 1650 1800
380 530 680 830 980 1130 1280 1280 1430 1580
10 20 30 40 50 60 70 80 90 100
1112222344
2222222222
3333333333
0,5 0,8 1,2 1,5 1,8 2,1 2,4 2,4 2,7 3,1
Ø
1/2” 1/2” 1/2” 1/2” 1/2” 3/4” 3/4” 3/4” 3/4” 3/4”
1111111111
0,1 0,2 0,3 0,4 0,5 0,6 0,6 0,6 0,7 0,8
Ø
1/2” 1/2” 1/2” 1/2” 1/2” 1/2” 1/2” 1/2” 1/2” 1/2”
L (mm)
M (mm)
Power supply: 230V / 1ph / 50Hz ± 10%
L (mm)
M (mm)
600 750 900 1050 1200 1350 1500 1500 1650 1800
380 530 680 830 980 1130 1280 1280 1430 1580
10 20 30 40 50 60 70 80 90 100
1112222344
1111111111
4444444444
0,7 1,1 1,6 2,0 2,4 2,8 3,2 3,2 3,7 4,1
Ø
1/2" 1/2" 1/2" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4"
600 750 900 1050 1200 1350 1500 1500 1650 1800
380 530 680 830 980 1130 1280 1280 1430 1580
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
• 3 •
Page 5
MAIN COMPONENTS
15
10
11
Heat exchanger
1
Water low temperature sensor
2
Control panel
3
Drain pan
4
Air fi lter
5
Electric motor
6
Centrifugal fan
7
Condense discharge
8
3
12
8
5
6
4
13
1
7
2
9
14
03
Knockouts
9
Valves
10
Auxiliary drain pan
11
Cabinet
12
Bearing structure
13
Terminal board
14
Supply grills
15
RECOMMENDATIONS FOR INSTALLATION
Before installing the appliance, ensure that:
1) the place of installation has suffi cient space for carrying out installation as well as routine and extraordinary maintenance work (see
Pic. 4).
2) There are no obstructions for air intake and delivery.
3) The water connections are of the sizes, in the position and spaced apart as required by the appliance (see Dimension).
4) The system pressure does not exceed 8 bar for the water versions.
5) The electricity supply corresponds to the data on the appliance rating plate and that there is a afety switch readily accessible to the
user to cut off the power supply whenever necessary.
6) The safety switch is in the OFF position so that there is no voltage on the appliance supply line.
m
m
0
5
1
130 mm
150 mm
m
m
0
5
1
04
• 4 •
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
Page 6
FAN COIL INSTALLATION
Before installing the appliance, remove the housing (if present). Raise
the fl aps covering the control panel and the water connections. Remove
the two screws fi xing the housing to the fan coil load-bearing structure.
Gipping the rear of the housing, remove it as shown in the Pic. 5 (NOTE:
be careful of the lugs on the front part of the load-bearing structure, as
shown in Pic.10).
Put the cabinet in the packing box to prevent it from being soiled or
damaged (Pic.6).
Offer the appliance up to the required point of installation and mark,
through the fi xing holes, the points on the wall where the holes should
be driller for the 4 screw anchors, as shown in Pic. 7.
Remove the appliance from the point of installation, drill the holes
where merked on the wall (see Pic. 8) and insert the screw anchors.
Place the appliance against the wall and fi x it by tightening the screws
into the anchors see (Pic. 9).
0605
Horizontal version Vertical version
07
Carry out the water and electrical connections as described in the
relevant paragraphs.
To replace the housing.
Take the cabinet from the packing box. Standing in front of the fancoil, lift
cabinet, holding it by the sides, and tilt it (Pic. 10). Pivot the cabinet on its base
until it is aligned with the wall. Raise the fl aps covering the control panel and
water connections and tighten the two fi xing screws (Pic.5).
08 09
B
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
A
10
• 5 •
Page 7
Il mobile di copertura è rivestito da un fi lm protettivo: toglier-
lo prima di fi ssare il mobile alla macchina. Rimontare il mobile
di copertura (se previsto), altrimenti l’apparecchio deve essere
mascherato a cura del cliente.
ATTENZIONE! Proteggere l’apparecchio con un cartone nel
caso in cui le opere murarie dell’edifi cio debbano ancora te-
minare (Pic. 11).
Ricordarsi di togliere il cartone di protezione prima di avviare
gli apparecchi.
WATER CONNECTIONS
CONNECTION TO THE WATER MAINS
CAUTION! Always use a wrench and nose key for connection of the coil to the pipes (Pic. 12). If the solenoid
valve is installed, suitably insulate the valve body with insulating material (Pic. 13).
Connect the water inlet and outlet pipes, observing the indications given on the side of the appliance.
Correctly insulate the water supply pipes to prevent dripping during the cooling mode of operation. An shutoff
valve should be inserted on the water supply pipe and balancing valve on the outlet pipe. The valve body
and balancing valve should also be properly insulated to prevent dripping. It is the installer’s responsibility to
insulate properly and the manufacturer cannot be held liable for any insulation work.
NOTE: it is always advisable to install the solenoid valve. In the heating mode of operation the solenoid
valve reduces consumption because upon reaching the set temperature the circulation of water is stopped
to avoid wasting energy (the fan coil would otherwise continue to heat like a radiator, even with the motor at
a standstill). In the cooling mode of operation the solenoid valve stops the circulation of water when the set
temperature is reached, this stopiing the internal exchanger
from continuing to condense water with possible undersirable dripping into the fl oor. It also reduces chiller
operation with consequent energy saving.
11
12
CONDENSATE WATER DRAINAGE
The condensate drain pipe should slope downwards by at least 3 cm/m and should not have ascending
or throttled section in order to ensure a regular fl ow of water. It is advisable for a trap to be fi tted. The
condensate drain pipe should be connected to a rainwater drainage system. Do not use sewage system to
avoid possible odours in the event of evaporation of the water in the trap. Upon completion of work, check that
the condensate fl ows out properly by pouring water into the tray (see Pic. 14 and 15). The condensate water
drainage system should be fabricated
in a workmanlike manner and should be periodically checked. The manufacturer cannot be held liable for any
damage caused by dripping in the absence of a solenoid valve or of periodic maintenance of the drainage
system.
• 6 •
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
13
5 mm
3 cm/m
14
3 cm/m
15
Page 8
ELECTRICAL CONNECTIONS
RECOMMENDATIONS!
Before carrying out electrical connections, ensure that the electricity
supply to the supply line has been cut off, checking that the on-off
1
36
10111275924 8
switch is in the OFF position. Only qualifi ed electricians should carry
out the electrical connections. Check that the mains supply is singlephase 230 Vac/1/50 Hz (± 10%).
Operating the appliance with voltages outside the above limits could
cause malfunction and renders the warranty null and void.
The fan coil power supply line should be fi tted with at least a switch
isolator in conformity with European standard EN60947-3. Make sure
that the electrical system is suitable for providing not only the working
current required by the appliance, but also the necessary current for
powering household and other electrical appliances already in use.
Any electrical and mechanical alterations or tampering render the warranty null and void. The motor and accessories power cables in channels
or ducts should remain inside the same until they are inside the appliances.
The cables should be suffi ciently long so that they are not permanently taut or create throttling or pressure on metal parts (see Pic. 16). The
power cables should be suffi ciently long so that in the event of accidental tugging the active wires are subjected to stress before the earth wire.
Connect the earth wire to the relative terminal marked with the symbol .
Check the earth connection. Comply with the safety regulations in force in the country of installation.
CONNECTIONS TO THE TERMINAL BOARD
WITHOUT CONTROL PANEL
The electrical connections should be made to the terminal board on the side of the appliance.
Each terminal is identifi ed by the label to be found on the terminal board.
16
WITH CONTROL PANEL
The electrical connections should be made directly to the control panel, as shown by the relative wiring diagram. If the control panel has an
electronic temperature sensor (NTC) this sensor will be powered by mains voltage (230Vac/1/50 Hz) and is therefore provided with double
insulation.
CAUTION: FAILURE TO COMPLY WITH THE INDICATED CONNECTIONS MAY CAUSE MOTOR BURNOUT!
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
• 7 •
Page 9
ELECTRICAL DRAWING
3-SPEED MOTOR (CONNECTION BOARD) + 230 VAC ON/OFF VALVES
XA1
Heating valve control
(4-pipe system)
ON/OFF 230Vac / 50 Hz
2 x 0,5 mm²
Cooling valve control
(4-pipe system)
ON/OFF 230Vac / 50 Hz
2x0,5 mm²
or:
Heating/cooling valve control
(2-pipe system)
ON/OFF 230Vac / 50 Hz
2x0,5 mm²
T1
YV2
C1
PE
YV1
FAN SPEED CONTROL
230Vac / 50 Hz
4x1 mm²
LEGEND:
PE
Com
I
II
III
C1
M1
T1
YV1
YV1 + YV2
XA1
• 8 •
Earth wiring (yellow/green)
Common
Low speed
Medium speed
Maximum speed
Capacitor
Motor
Trafo (not present in all the models)
ON/OFF Heating/cooling valve (2-pipe system)
YV1 on/off cooling valve Heating/cooling valve
YV2 on/off heating valve(4-pipe system) (4-pipe system)
Connection board
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
Page 10
ELECTRICAL DRAWING
3-SPEED MOTOR (CONNECTION BOARD) + VALVES AND ON/OFF 23V HEATER OPTION
nb
Control of valve and electric coil
LEGEND:
PE
Com
I
II
III
r
n
b
C1
KA1
M1
R1
ST1
ST2
T1
YV1
XA1 - XA2
Earth wiring (yellow/green)
Common
Low speed
Medium speed
Maximum speed
Red
Black
White
Capacitor
Relay type Finder 22.32
Motor
Electrical heater
Safety thermostat with automatic reset
Safety thermostat with manual reset
Trafo (not present in all the models)
ON/OFF Heating/cooling valve (2-pipe system)
Connection board
(ON/OFF)
230Vac / 50 Hz
3x1 mm²
Fan speed control
230Vac / 50 Hz
4x1 mm²
Electrical supply of the electrical
heater
230Vac / 50 Hz
2x2,5 mm²
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
• 9 •
Page 11
ELECTRICAL DRAWING
3-SPEED MOTOR (CONNECTION BOARD) + 230 VAC ON/OFF VALVE (2-PIPE SYSTEM)
+ LXTFZ01M CONTROL
PE
WHITE
C1
T1
YV1
XA1
106211731284
951
• 10 •
LXTFF01M
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
Page 12
ELECTRICAL DRAWING
3-SPEED MOTOR (CONNECTION BOARD) + VALVES AND ON/OFF 23V HEATER OPTION
+ LXTFZ01M CONTROL
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
• 11 •
Page 13
ELECTRICAL DRAWING
3-SPEED MOTOR + REGULATION WITH INFRARED REMOTE CONTROL
Connection board
Electrical supply
230Vac/50Hz
Water temperature sensor for fan activation
Change over sensor
Ambient temperature sensor
EC fault
Jumper
Wall mounted remote control (option)
Alarm switch
PANEL
CONFIGURATIONADDRESS
Fuses
Regulation card
Electric coil control
KA 1 = Relay type Finder 22.32
R1 = Electrical heater
ST1 = Safety thermostat with automatic reset
ST2 = Safety thermostat with manual reset
OR
HEATING VALVE (4-pipe system) ON/OFF
230Vac/50Hz
• 12 •
Shielded
Blade motor
Occupancy sensor -
windows contact
Receiver
Remote control receiver
FAN MOTOR
230Vac/50Hz
Capacitor
TRAFO
White
Connection board
HEATING / COOLING VALVE (2-pipe system)
ON/OFF 250 Vac/50HzOrCOOLING VALVE (4-pipe system) ON/OFF
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
230Vac/50Hz
Page 14
ELECTRICAL DRAWING
EC MOTOR (CONNECTION BOARD) + 230 VAC ON/OFF VALVES
Permanent electrical supply
230Vac / 50 Hz
3x1 mm²
FAN SPEED CONTROL
0 - 10 Vdc
2x0,5 mm²
SHIELDED AND BRAIDED
LEGENDA:
LEGEND:
PE
PE Earth wiring (yellow/green)
A1
A1 Motor electronic control
M1
M1 Motor
YV1 ON/OFF Heating/cooling valve (2-pipe system)
YV1
YV1 + YV2
YV1 + YV2
XA1 Connection board
XA1
YV1 on/off cooling valve Heating/cooling valve
YV2 on/off heating valve(4-pipe system) (4-pipe system)
Heating valve control
(4-pipe system)
ON/OFF 230Vac / 50 Hz
2x0,5 mm²
Cooling valve control
(4-pipe system)
ON/OFF 230Vac / 50 Hz
2x0,5 mm²
or:
Heating/cooling valve control
(2-pipe system)
ON/OFF 230Vac / 50 Hz
2x0,5 mm²
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
• 13 •
Page 15
EC MOTOR (CONNECTION BOARD) + VALVES AND ON/OFF 23V HEATER OPTION
FAN SPEED CONTROL0 - 10 Vdc
2x0,5 mm²
Shielded and braided
Control of valve and electric coil
(ON/OFF)
230Vac / 50 Hz
3x1 mm²
Permanent electrical supply
230Vac / 50 Hz
2x2,5 mm²
LEGEND:
PE M1
A1 R1
M1 ST1
r ST2
nT1
b XA1 - XA2
KA1
• 14 •
Earth wiring (yellow/green) Motor
Motor electronic control Electrical heater
Motor Safety thermostat with automatic reset
Red Safety thermostat with manual reset
Black Trafo (not present in all the models)
White Connection board
Relay type Finder 22.32
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
Page 16
EC MOTOR (CONNECTION BOARD) + 230 VAC ON/OFF VALVE (2-PIPE SYSTEM)
+ LXTFZ01M CONTROL
106211731284
951
LXTFZ01M
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
• 15 •
Page 17
EC MOTOR (CONNECTION BOARD) + 230 VAC ON/OFF VALVES (4-PIPE SYSTEM)
+ LXTFZ01M CONTROL
YV2
• 16 •
106211731284
951
LXTFZ01M
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
Page 18
EC MOTOR (CONNECTION BOARD) + VALVES AND ON/OFF 23V HEATER OPTION
+ LXTFZ01M CONTROL
106211731284
951
LXTFZ01M
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
• 17 •
Page 19
EC MOTOR + REGULATION WITH INFRARED REMOTE CONTROL
Connection board
Electrical supply
230Vac/50Hz
Electric coil control
KA 1 = Relay type Finder 22.32
R1 = Electrical heater
ST1 = Safety thermostat with automatic reset
ST2 = Safety thermostat with manual reset
Water temperature sensor for fan activation
Change over sensor
Ambient temperature sensor
Regulation card
EC fault
Jumper
Alarm switch
control (Optionale)
Wall mounted remote
CONFIGURATIONADDRESS
Fuses
Receiver
EC MOTOR Regulation card
HEATING VALVE (4-pipe system)
ON/OFF 230Vac/50Hz
HEATING / COOLING VALVE (2-pipe
system)
ON/OFF 250 Vac/50HzOrCOOLING VALVE (4-pipe system) ON/
OFF 230Vac/50Hz
• 18 •
Shielded
Occupancy sensor -
windows contact
Remote control receiver
FAN MOTOR (SISME)
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
Page 20
CHANGING THE MOTOR SPEED OF ROTATION
The fan coil motor has 6 speed settings, 3 of which are connected in
the factory (red, blue and black wires connected to the motor autotransformer). To use other speeds than those wired up in the factory,
the red (minimum), blue (medium) and black (maximum) wires may
be connected onto 3 of the 6 numbered terminals (1…6), taking into
account that the speeds follow a sequence as shown in Pic. 18.
Blu
Rosso
Nero
Motore (*)
Comune
* CAUTION!
Motore (*)
UNDER NO CIRCUMSTANCES SHOULD THE CONNECTIONS TO
THE TERMINALS L, M, M BE CHANGED!
TESTING THE FANCOIL
Upon completion of installation, scrupulously check both the water and the electrical connections before switching on the appliance.
Before mounting the housing (if present), fi ll the system, bring it up to pressure and bleed. Make the water circulate and check for leaks.
Check correct operation of the fan coil at the 3 speeds, of the solenoid valves and of the minimum temperature thermostat (if
installed).
18
TURNING THE COIL
CAUTION!
The fan may reach the speed of 1,000 rpm. Do not insert objects or hands into the electric fan. The motor
becomes hot during operation; wait for it to cool before touching it. During the heating mode of operation the
exchanger and the connecting pipes may become very hot (80°C).
Wait for the exchanger to cool before touching it or protect hands with suitable gloves. The heat exchange water coils are suitable for working up to ma maximum pressure of 8 bar.
To turn the coil, proceed as follows:
A) Remove the housing (if present).
B) Remove indicate screws in picture:
- 1,2: standard coil screws;
- 3: auxiliary coil screws;
- 4,5: main drain pan screws;
- 6,7: motor screws.
C) Disconnect the terminal block or the control panel (2), if present, from the side of the appliance;
D) Take out drain pan (A).
E) Take out auxiliary coil (C), if present, and standard coil (B).
Prestare attenzione a non tagliarsi con le alette e a non danneggiarle.
F) Remove the knockouts (6) on the opposite side of the fan coil (using a screwdriver), to allow the coil con-
nections to pass through.
G) Position the coil, turning it of 180°, so that the fi ttings are in line with the holes left by the knockouts.
Fix the coil using the previously removed screws.
3
1
6
2
4
5
7
A
C
B
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
180°
• 19 •
Page 21
TURNING THE COIL (continuation)
3
H) Shift the control panel, if present, or the terminal block (fi xing it to the side opposite the water fi ttings), the
motor and sensor cables, if present, fi xing them with their grips. Ensure that the cables pass through the
hole in the side of the appliance, protecting them with the relative grommet. If it proves easier to carry out
this operation by separating the wires from the terminal blocks, mark the positions of the wires to avoid
making mistakes when reconnecting.
I) Reconnect the wires to the relative terminal blocks or control panel, taking care that they are correctly
positioned.
L) Reassemble the components previously removed and follow the steps A, B, C, D, E, on the contrary.
ATTENTION:
Copper fi ttings for valve are different between right and left installation.
If hydraulic connections have to be modifi ed on site, it’s necessary to order the correct installation kit.
1
6
2
4
5
7
A
C
B
OPERATING LIMITS
SUMMER (COOLING MODE)
Minimum inlet water temperature +4°C
Maximum operating pressure 8 bar
Maximum room air temperature +35°C
Maximum room air humidity 80%
WINTER (HEATING)
Maximum inlet water temperature +80°C
Maximum operating pressure 8 bar
Minimum room air temperature +4°C
Maximum room air humidity 80%
Maximum room air temperature +35°C
Following rules have to be respected for a proper operating of the unit:
- Units can’t be installed in areas with anomalous heat and humidity conditions;
- Units can’t be installed outdoors;
- Units can’t be installed in explosive environments;
- Units can’t be installed in a corrosive atmosphere.
• 20 •
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
Page 22
USING THE APPLIANCE
CAUTION!
This appliance should only be used by adults. Make sure that children do not touch the controls or play with the appliance. This appliance has
been designed for use as a heating and cooling appliance in rooms that are clean and frequented by persons (with normal pollution). Avoid using
for any other purpose. This appliance should not be used in places with suspended dust/powder or in potentially explosive atmospheres, in very
damp environments or in the presence of oil in suspension or in particularly aggressive atmospheres.
USING THE CONTROL PANEL
If the appliance has a built-in control panel, raise the fl ap and proceed as follows.
21
22
Put the season selector switch from the off position (
) to the winter position ( ).
The fan starts.
In models with minimum temperature thermostat (optional), the fan starts when the
internal heat exchanger is suffi ciently hot. If the water is not hot enough, the fan does
not start.
Cooling mode
Heating mode
Put the season selector switch from the off position (
) to the summer position ( ).
The fan starts immediately.
Selecting the fan speed
Put the selector switch to the required speed.
The higher the speed the quicker the room will be heated/cooled, although appliance
operation will be noisier (Pic. 22).
Automatic temperature adjustment
This control panel has a built-in temperature sensor, which measures the room air
temperature. This information is used for the automatic control of the fan or introduction
of water into the internal exchanger through the solenoid valve (optional).
The appliance this keeps the room at the temperature set by the user.
The room temperature may be set approx. between 10°C and 30°C. If the applian-
ce does not have a built-in control panel, but is controlled by a wall-mounted
thermostat, refer to the thermostat instructions for use.
OFF
Winter
(heating mode)
Min. speed
Max speed
Summer
(cooling mode)
Med. speed
22
23
Turn the knob to select the desired temperature
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
• 21 •
Page 23
CLEANING AND MAINTENANCE
The appliance requires no periodic maintenance. Simple checks by the
user to keep it in perfect working order are, however, necessary.
CAUTION! Before carrying out any cleaning or maintenance work,
disconnect the appliance from the mains electricity supply!
ORDINARY MAINTENANCE
For standard use of the unit in normal condition we recommend:
- To clean the air fi lter every 6 month and change it every 2 years
- To clean the housing
- To clean the coil
- To clean the drain fi tting (check the normal condensate fl ow)
Cleaning the fi lter (lower intake version)
CLEANING THE AIR FILTER
The appliance is fi tted with an air fi lter on the fan inlet. During normal
operation the fi lter withholds impurities in the air.
The fi lter should be cleaned periodically to keep its fi ltering properties
and the airfl ow to the fan unchanged. It is advisable to clean the fi lter at
least once a month, proceeding as follows.
1. Take out the fi lter.
2. Place the fi lter on a fl at, dry surface and remove the accumulated
dust with a vacuum cleaner.
3. Wash the fi lter with water and detergent (no solvents).
4. Leave the fi lter to dry in a ventilated place in the sun.
5. Replace the fi lter when it is perfectly dry.
Clean the fi lter at the beginning and end of every season.
WATER
+
DETERGENT
24
Cleaning the fi lter (front intake version)
WATER
+
DETERGENT
NOTE
HINWEIS
The procedure for ceiling-mounted horizontal version is the
Für Versionen für die horizontale Deckenmontage ist die Prozedur
same.
dieselbe.
25
CLEANING THE HOUSING AND THE CONTROL PANEL
To clean the housing, use a dry soft cloth to avoid scratching the enamel.
To clean the control panel and the air outlet louvres, use a vacuum cleaner fi tted with a soft dusting tool or use a separate brush.
Delicately clean the louvres and the controls by removing dust from the
cracks and corners.
Under no circumstances use water.
• 22 •
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
26
Page 24
WHAT TO DO IF...
THE FAN DOES NOT WORK
Possible cause: power failure
Possible remedy: check the on/off switch
Possible cause: switch in position “0”
Possible remedy: change position on the control panel
Possible cause: water in the system not hot enought
Possible remedy: check that the outlet temperature is above 40°C
Little outfl owing air
Possible cause: clogged fi lter
Possible remedy: clean the fi lter
The appliance does not heat
Possible cause: no hot water in the system
Possible remedy: check that the boiler and circulating pump are working
Possible cause: Incorrectly positioned hot/cold switch
Possible remedy:
check that the switch is on
The appliance does not cool
Possible cause: no cold water in the system
Possible remedy: check that the chiller and the circulating pump are working
for heating and for cooling.
The appliance heat/cool very little
Possible cause: incorrectly regulated thermostat
Possible remedy: turn the thermostat knob (if installed) left/right
Possible cause: air in the pipes
Possible remedy: bleed by loosening the valve at the heat exchanger inlet
Water on the fl oor during cooling
Possible cause: blocked condensate drain
Possible remedy: switch off the appliance and contact the installer to check condensate drainage
DISMANTLING THE APPLIANCE
This appliance is made to last for many years. Qualifi ed personnel are needed to
dismantle it in all safety. The fi rst operation to be carried out before dismantling the
appliance is to disconnect it totally from the electricity supply.
This appliance has been made using recyclable materials (copper, aluminium,
brass, plastic) assembled by screws and push-fi ts to make separation of the parts
easy.
Contact a fi rm specialised in differentiated waste disposal; it is the only way to be
certain of correct recycling and thereby contribute to protection of the environment.
R
I
F
I
U
I
T
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
• 23 •
Page 25
• 24 •
Installation, Operation and Maintenance Manual / ALLEGRA II-IOM-1901-E
Page 26
www.lennoxemea.com
+ 32 3 633 3045 +351 229 066 050
+33 1 64 76 23 23 +7 495 626 56 53
+49 (0) 211 950 79 600 +34 915 401 810
+ 39 02 495 26 200 +38 044 585 59 10
+ 31 332 471 800 +44 1604 669 100
+48 22 58 48 610
LENNOX DISTRIBUTION
+33 4 72 23 20 20
Due to LENNOX EMEA ongoing commitment to quality, the specifi cations, ratings and dimensions are subject to change without
notice and without incurring liability.
Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury.
Installation and service must be performed by a qualifi ed installer and servicing agency.
ALLEGRA2-
IOM-1901-E
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