www.lennoxemea.com
INSTALLATION, OPERATION
AND MAINTENANCE
DUCTABLE AIR TREATMENT UNIT
INALTO
2581 - 27851 W
381 - 5668 m3/h
INALTO-IOM-1809-E
LENNOX participates in the ECP programme for FCU.
Check ongoing validity of certifi cate :
www.eurovent-certifi cation.com
• 1 •
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INALTO
Installation, operation and maintenance / INALTO-IOM-1809-E
FOR INSTALLER
General description
Dimensions and technical data
Installation
Example of accessories use and compatibility
Assembly diagrams
Hydraulic connection
Wiring diagrams
3-speed motor
3-speed motor + LXTFF01M controller
EC motor
EC motor + LXTFF01M controller
Turning the coil
FOR USER
What to do if...
Dismantling the unit
INSTALLATION, OPERATION
AND MAINTENANCE
Ref : INALTO-IOM-1809-E
• 2 •
Installation, operation and maintenance / INALTO-IOM-1809-E
INTRODUCTION
This installation and maintenance booklet should always accompany the
air treatment unit for ready consultation by the installer or user if necessary.
The unit should be installed in compliance with the regulations in force
in each country and according to the manufacturer’s or qualifi ed person’s
instructions. The manufacturer cannot be held liable for any damage to
property or injury to persons and animals caused by incorrect installation
of the unit. Only qualifi ed persons should install the unit and connect it to
the mains electricity supply. Before carrying out any work on the unit, ensure that it is disconnected from the electricity supply. Read this instruction
booklet prior to installation.
RECOMMENDATIONS
This unit is easy to use, but it is important to read all the contents of this
guide before using it for the fi rst time. This will help you to:
- use the unit in all safety
- obtain best performance
- avoid incorrect actions
- respect the environment
- Do not allow children or unassisted handicapped persons to use the
unit.
- Do not touch the unit with wet parts of the body or if barefoot.
- Do not tug, pull or twist electrical cables attached to the unit, even when
disconnected from the electricity supply.
- Do not open the fl aps giving access to the internal parts of the unit with-
out 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 (boards, staples, plastic bags, etc.) within
reach of children since they could be a source of danger. Dispose of
correctly.
- Do not spray or throw water directly on the unit.
- Do not use the unit 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 unit with objects or drapes that even partially obstruct
the air fl ow.
The unit works by electricity at mains voltage (230 Vac, 50 Hz). Always
bear in mind that mains voltage is potentially dangerous and any appliance
connectedto it should be used with caution. Before carrying out any work
on the unit, disconnect it from the electricity supply (by pulling out the plug
from the mains socket or isolating the supply line by putting the on-of switch
OFF. If the unit is not be used for long periods, make sure that the controls
are in the position 0 (off). If the unit is not going to be used in winter when
temperatures are near to freezing, drain the system and ensure that the
unit heat exchanger has no water in it in order to prevent the formation of
ice and consequent breakage. To make the unit 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 in any case makes
the warranty null and void. In the event of malfunction or failure, do not
try to repair the unit yourself; contact a qualifi ed technician. Repairs car-
ried out by incompetent persons could cause damage or accidents. Always
keep the unit 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 PRODUCER OF ALL AND ANY LIABILITY. INCORRECT INSTALLATION COULD CAUSE MALFUNCTIONING
OR FAILURE OF THE UNIT. IT COULD ALSO REPRESENT A HAZARD
FOR THE USER.
TRANSPORTATION, RECEIVING, HANDLING
The units and their accessories are enclosed in cardboard boxes up to
size 50, while the other sizes are palletised. The packs should be kept
intact until positioned in the fi nal place of installation. Use suitable handling
equipment according to the weight of the unit, as provided for by directive
89/391/EEC and subsequent amendments. The weight of each single machine is given in this guide (table 2). Upon receiving the unit, check all the
parts for any damage caused in transit. Any damage should be reported to
the carrier by affi xing an accepted with reservation on the accompanying
note, specifying the type of damage. In the event of prolonged storage,
keep the units protected against dust and far from sources of vibration or
heat. The number of units that may be positioned on one pallet are given
in the table (table 1).
THE PRODUCER CANNOT BE HELD LIABLE FOR DAMAGE DUE TO
INCORRECT HANDLING OR LACK OF PROTECTION AGAINST THE
ELEMENTS.
SAFETY INSTRUCTIONS
IDENTIFICATION OF THE UNIT
The air treatment units come with a rating plate, which shows :
- The manufacturer's address; - Supply voltage in "V";
- "CE" marking; - Supply frequency in “Hz”;
- Model; - Number of phases, indicated
with "Ph";
- Lot number; - Total cooling capacity in “W”;
- Date of production; - Sensible cooling capacity in “W”;
- Rated absorbed current in "A"; - Heating capacity
- Input in “W”;
Secure packs during transportation.
Do not expose to the elements.
Do not tread on packs.
Protect hands with work gloves when dismantling the unit.
Work in PAIRS if the appliance weighs more than 25 kg.
GENERAL DESCRIPTION
• 3 •
05 11 15 25 28
L
mm
770 1070 1270 1420 1520
H 297 297 347 372 397
P 643 643 643 770 770
A 656 956 1156 1306 1406
B 253 253 303 328 353
M 680 980 1180 1330 1430
C 247 247 297 322 347
D 237 237 237 300,5 300,5
E 118 118 118 195 195
F 93,5 93,5 118,5 131 143,5
G 233 233 233 310 310
I 83,5 83,5 108,5 121 133,5
N 193 193 193 270 270
Ø
1/2” 1/2” 3/4” 3/4” 1”
1/2” 3/4” 3/4” 1” 1”
3/4” 3/4” 1” 1” 1” 1/4
kg 28 38 49 62
Installation, operation and maintenance / INALTO-IOM-1809-E
DIMENSIONS - UNIT 05 to 28
TECHNICAL DATA - UNIT 05 to 28
SIZE
Fittings
(male)
2 rows coil
4 rows coil
6 rows coil
Net weight
Figure 01
DIMENSIONS & TECHNICAL DATA
• 4 •
49 57
L
mm
2190 2190
H 373 398
P 770 770
A 2076 2076
B 328 353
M 2100 2100
C 323 348
D 300,5 300,5
E 201,5 201,5
F 131,5 144
G 311 311
I 121,5 134
N 270 270
Ø
1” 1”
1” 1/4 1” 1/2
1” 1/2 1” 1/2
kg
Installation, operation and maintenance / INALTO-IOM-1809-E
SIZE
Fittings
(male)
2 rows coil
4 rows coil
6 rows coil
Net weight
Figure 02
DIMENSIONS - UNIT 49 & 57
TECHNICAL DATA - UNIT 49 & 57
DIMENSIONS & TECHNICAL DATA
• 5 •
P
1,5
P
Installation, operation and maintenance / INALTO-IOM-1809-E
RECOMMENDATIONS FOR INSTALLATION
Before installing the unit, ensure that:
1) The place of installation has suffi cient space for carrying out installa-
tion as well as routine and extraordinary maintenance work (see Figure 03). If the unit is installed behind a suspended ceiling, an access
should be provided;
2) There are no obstructions for air intake and delivery;
3) The water fi ttings are of the sizes, in the position and spaced apart as
required by the unit;
4) The system pressure does not exceed 8 bar for the water-fi lled ver-
sions;
5) The electricity supply corresponds to the data on the unit rating plate
and that there is a circuit breaker switch readily accessible to the user
to cut off the power supply whenever necessary;
6) The circuit breaker is in the OFF position so that there is no voltage on
the unit
supply line.
INSTALLATION OF THE AIR TREATMENT UNIT
PRELIMINARY OPERATIONS
- check that the various unit components are perfectly intact;
- check that the installation accessories and documentation are in the pack;
- place the packed section as close as possible to the place of installation;
- do not place tools or weights of any kind on the packed unit.
Drill the holes in line with the relative slots for the 6 unit screw anchors
(Figure 4).
Inject thermosetting resin into the holes and then insert the screw anchors
(Figure 5).
Fix the threaded rods of the correct length to the screw anchors (Pic. 5) and
insert them into the relative slots (Pic. 6). After having created a slope (max.
3 cm/m) in the direction of the condensate outlet, lock the threaded rod with
a nut and check nut. To prevent possible noise being created by vibrations
from the unit, it is advisable to insert a vibration-damping joint.
Note: the screw anchors, threaded rods and whatever else is necessary for accomplishing the installation are NOT included in the supply
of the air treatment unit.
Figure 04
Figure 05
Figure 06
Figure 03
INSTALLATION
• 6 •
PAM
RAM
GAM
SRE
SRA
USG
SSP
BAM
Installation, operation and maintenance / INALTO-IOM-1809-E
EXAMPLE OF ACCESSORIES USE AND COMPATIBILITY
UNIT
Aluminium damper
Air intake grill
Air supply grill
Depending on the requirements, the air fi lter can have a thickness of 12/25/48 mm
• 7 •
Installation, operation and maintenance / INALTO-IOM-1809-E
SUPPLY PLENUM (PAM)
INTAKE PLENUM (PAM)
Size 05 to 28
x8 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl anged with corrugated washer DIN4161
Sizes 49 & 57
x10 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl angiato with corrugated washer DIN4161
Size 05 to 28
x8 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl anged with corrugated washer DIN4161
Sizes 49 & 57
x10 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl anged with corrugated washer DIN4161
Figure 07
Figure 08
ASSEMBLY DIAGRAMS
• 8 •
TE M5x12
TE M5x12
Installation, operation and maintenance / INALTO-IOM-1809-E
SUPPLY PLENUM (RAM)
INTAKE PLENUM (RAM)
Size 05 to 28
x5 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl anged with corrugated washer DIN4161
x3 Screw TE M5x12 UNI 5739
Sizes 49 & 57
x6 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl anged with corrugated washer DIN4161
x4 Screw TE M5x12 UNI 5739
Size 05 to 28
x7 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl anged with corrugated washer DIN4161
x1 Screw TE M5x12 UNI 5739
Sizes 49 & 57
x8 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl anged with corrugated washer DIN4161
x2 Screw TE M5x12 UNI 5739
Figure 09
Figure 10
ASSEMBLY DIAGRAMS
• 9 •
Installation, operation and maintenance / INALTO-IOM-1809-E
MOUNTING BRACKET (PAM)
MOUNTING BRACKET (RAM)
Size 05 to 28
x6 Self-drilling screw with tip TC+3,9x9,5 UNI6954
Size 05 to 28
x6 Self-drilling screw with tip TC+3,9x9,5 UNI6954
Figure 11
Figure 12
ASSEMBLY DIAGRAMS
• 10 •
GAM
SRE
Installation, operation and maintenance / INALTO-IOM-1809-E
Sizes 49 & 57
x4 Screw TC+M5x12 UNI7687
x4 Hex nut M5 fl anged with corrugated washer DIN4161
Size 05 to 28
x8 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl anged with corrugated washer DIN4161
Sizes 49 & 57
x10 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl anged with corrugated washer DIN4161
Figure 13
Figure 14
ASSEMBLY DIAGRAMS
• 11 •
SRA
USG
Installation, operation and maintenance / INALTO-IOM-1809-E
Size 05 to 28
x8 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl anged with corrugated washer DIN4161
Sizes 49 & 57
x10 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl anged with corrugated washer DIN4161
Size 05 to 28
x8 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl anged with corrugated washer DIN4161
Sizes 49 & 57
x10 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl anged with corrugated washer DIN4161
Figure 15
Figure 16
ASSEMBLY DIAGRAMS
• 12 •
SSP
Installation, operation and maintenance / INALTO-IOM-1809-E
Size 05 to 28
x8 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl anged with corrugated washer DIN4161
Sizes 49 & 57
x10 Screw TC+M5x12 UNI7687
x6 Hex nut M5 fl anged with corrugated washer DIN4161
Size 05 to 28
x5 Screw TC+M5x12 UNI7687
x4 Hex nut M5 fl anged with corrugated washer DIN4161
Sizes 49 & 57
x6 Screw TC+M5x12 UNI7687
x4 Hex nut M5 fl anged with corrugated washer DIN4161
CANALIZABLE SIDE
Lined up to the edge
UNIT + ACCESSORIES
SIDE
Shorter to mix the air fl ow
ASSEMBLY DIAGRAMS
Figure 17
Figure 18
ALUMINIUM DAMPER
• 13 •
Installation, operation and maintenance / INALTO-IOM-1809-E
Size 05 to 28
x8 Screw TC+M5x12 UNI7687
x8 Hex nut M5 fl anged with corrugated washer DIN4161
Sizes 49 & 57
x10 Screw TC+M5x12 UNI7687
x10 Hex nut M5 fl anged with corrugated washer DIN4161
Size 05 to 28
x8 Screw TC+M5x12 UNI7687
x8 Hex nut M5 fl anged with corrugated washer DIN4161
Sizes 49 & 57
x10 Screw TC+M5x12 UNI7687
x10 Hex nut M5 fl anged with corrugated washer DIN4161
ASSEMBLY DIAGRAMS
Figure 19
Figure 20
BAM ON PAN
BAM ON RAM
• 14 •
Installation, operation and maintenance / INALTO-IOM-1809-E
SUPPLY GRILL ON PAM ASSEMBLY DIAGRAM
Size 05 to 28
x6 Self-drilling screw TC+4,2x13 UNI8118
Sizes 49 & 57
x8 Self-drilling screw TC+4,2x13 UNI8118
SUPPLY GRILL ON RAM ASSEMBLY DIAGRAM
Size 05 to 28
x6 Self-drilling screw TC+4,2x13 UNI8118
Sizes 49 & 57
x8 Self-drilling screw TC+4,2x13 UNI8118
Pic. 21
Pic. 22
ASSEMBLY DIAGRAMS
• 15 •
Installation, operation and maintenance / INALTO-IOM-1809-E
INTAKE GRILL ON PAM ASSEMBLY DIAGRAM
Size 05 to 28
x6 Self-drilling screw TC+4,2x13 UNI8118
Sizes 49 & 57
x8 Self-drilling screw TC+4,2x13 UNI8118
INTAKE GRILL ON RAM ASSEMBLY DIAGRAM
Size 05 to 28
x6 Self-drilling screw TC+4,2x13 UNI8118
Sizes 49 & 57
x8 Self-drilling screw TC+4,2x13 UNI8118
Pic. 23
Pic. 24
ASSEMBLY DIAGRAMS
• 16 •
3 cm/m
++
+
+
+
ǻS
O
U
T
O
U
T
IN
IN
Installation, operation and maintenance / INALTO-IOM-1809-E
ELECTRICAL CONNECTIONS
CONNECTIONS TO THE TERMINAL BOARD
RECOMMENDATIONS!
Before carrying out electrical connections, ensure that the electricity supply
to the supply line has been cut off, checking that the on-off switch is in the
OFF position.
- Only qualifi ed electricians should carry out the electrical connections.
- Check that the mains supply is single-phase 230 Vac/1/50 Hz (± 10%).
- Operating the unit with voltages outside the above limits could cause
malfunction and renders the warranty null and void.
- The 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 unit, 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 cables should be suffi ciently long so that they are not permanently taut
or create throttling or compression on metal parts.
The power cables should be suffi ciently long so that in the event of acci-
dental tugging the active wires are subjected to stress before the earth wire.
Connect the earth wire to the relative terminal marked with the symbol .
Comply with the safety regulations in force in the country of installation.
The electrical connections should be made to the terminal boards on the
side of the appliance. Each terminal is identifi ed by the label to be found on
the terminal boards.
CAUTION !
FAILURE TO COMPLY WITH THE INDICATED CONNECTIONS MAY
CAUSE MOTOR BURNOUT!
CONDENSATE WATER DRAINAGE
The condensate drain pipe should slope downwards by at least 3 cm/m
and should not have ascending or throttled sections 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 systems to avoid possible rising of 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. 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 valve or of periodic maintenance of the drainage
system.
Pic. 25
Pic. 26
TRAP (PLUMBING)
H1=∆p/10
H2=((∆p/10)/2 + 30 ∆p=
in Pa
H1; H2 = mm
Pic. 27
Pic. 28
HYDRAULIC CONNECTION
M6 vent
with hexagonal head pin
MAIN HYDRAULIC CONNECTION
CAUTION !
Always use a wrench and counter-wrench for connection of the coil
to the pipes (pic. 25). If the valve is installed, suitably insulate the
valve body with insulating material (pic. 26).
Connect the water inlet and outlet pipes, observing the indications given
on the side of the unit. Correctly insulate the water supply pipes to prevent
dripping during the cooling mode of operation. A shutoff valve should be
inserted on the water supply pipe and a 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 valve. In the heating mode
of operation the 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 valve stops the circulation of water when the set temperature is reached, this stopping the internal exchanger from continuing to condense water with possible undesirable dripping onto
the fl oor. It also reduces chiller operation with consequent energy
saving.
• 17 •
PE
Com
I
II
III
C1
M1
XA1
Installation, operation and maintenance / INALTO-IOM-1809-E
Size 05 to 15
LEGEND:
Earth (yellow/green)
Common
Minimum speed
Medium speed
Maximum speed
Capacitor
Motor
Electric box with terminal board for fan speed control M1
Pic. 29
Fan speed control
230V AC / 50 Hz
Cross section area = 1,5 mmq
C1
PE
XA1
3-SPEED MOTOR
WIRING DIAGRAMS
• 18 •
PE
L
N
Com
I
II
III
A1
C1
M1
Installation, operation and maintenance / INALTO-IOM-1809-E
Fan speed control
230VAC / 50 Hz
Fan power supply
(permanent)
230VAC / 50 Hz
Cross section area = 1,5 mmqCross section area = 1 mmq
UNIT LIMIT
LEGEND:
Earth (yellow/green)
Phase
Neutral
Common
Minimum speed
Medium speed
Maximum speed
Power chart
Capacitor
Motor
Pic. 30
3-SPEED MOTOR
Sizes 25 & 28
WIRING DIAGRAM
• 19 •
PE
L
N
Com
I
II
III
C1
C2
KA1
KA2
KA3
M1
M2
XA1
Installation, operation and maintenance / INALTO-IOM-1809-E
Cross section area = 1 mmq
Cross section area = 2,5 mmq
Fan speed control
230VAC / 50 Hz
Fan power supply
(permanent)
230VAC / 50 Hz
LEGEND:
Earth (yellow/green)
Phase
Neutral
Common
Minimum speed
Medium speed
Maximum speed
Capacitor
Capacitor
Maximum speed relay
Medium speed relay
Minimum speed relay
Fan motor
Fan motor
Terminal board for fan speed control M1
Pic. 31
3-SPEED MOTOR
Sizes 49 & 57
WIRING DIAGRAM
• 20 •
PE
Com
I
II
III
A2
C1
M1
XA1
Installation, operation and maintenance / INALTO-IOM-1809-E
Size 05 to 15
LEGEND:
Earth (yellow/green)
Common
Minimum speed
Medium speed
Maximum speed
SDP power chart (ACCESSORY NECESSARY)
Capacitor
Motor
Terminal board for fan speed control M1
Pic. 32
Cross section area = 1 mmq
UNIT LIMIT
LXTFF01M
3-SPEED MOTOR + LXTFF01M CONTROLLER
WIRING DIAGRAM
• 21 •
PE
L
N
Com
I
II
III
A2
C1
M1
Installation, operation and maintenance / INALTO-IOM-1809-E
Sizes 25 & 28
Cross section area = 1,5 mmq
UNIT LIMIT
LXTFF01M
LEGEND:
PE Earth (yellow/green)
L Phase
N Neutral
Com Common
I Minimum speed
II Medium speed
III Maximum speed
A2 SDP power chart
C1 Capacitor
M1 Motor
Pic. 33
3-SPEED MOTOR + LXTFF01M CONTROLLER
WIRING DIAGRAM
• 22 •
PE
L
N
Com
I
II
III
C1
C2
KA1
KA2
KA3
M1
M2
XA1
Installation, operation and maintenance / INALTO-IOM-1809-E
Sizes 49 & 57
LEGEND:
Earth (yellow/green)
Phase
Neutral
Common
Minimum speed
Medium speed
Maximum speed
Capacitor
Capacitor
Maximum speed relay
Medium speed relay
Minimum speed relay
Fan motor
Fan motor
Terminal board for fan speed control M1
Pic. 34
3-SPEED MOTOR + LXTFF01M CONTROLLER
LXTFF01M
Cross section area = 2,5 mmq
WIRING DIAGRAM
• 23 •
PE
A1
M1
XA1
Installation, operation and maintenance / INALTO-IOM-1809-E
Size 05 to 15
LEGEND:
Earth (yellow/green)
Electronic control
Motor
Terminal board
Pic. 35
EC MOTOR
FAN SPEED CONTROL
0-10 Vdc
2x0,5mmq
POWER SUPPLY
PERMANENT
230Vac/50Hz
3x1mmq
WIRING DIAGRAM
• 24 •
PE
L
N
A1
M1
XA1
TH1
Installation, operation and maintenance / INALTO-IOM-1809-E
Sizes 25 & 28
LEGEND:
PE Earth (yellow/green)
L Phase
N Neutral
A1 Electronic control
M1 Motor
XA1 Terminal board
TH1 Thermal protector
Pic. 36
EC MOTOR
UNIT LIMIT
FAN SPEED CONTROL
0-10 Vdc
2x0,5mmq
(shielded and twisted)
POWER SUPPL Y ELECTRONIC CONTROL
230Vac/50Hz
3x1,5mmq
WIRING DIAGRAM
• 25 •
PE
L
N
A1
A2
M1
M2
XA1
TH1
TH2
Installation, operation and maintenance / INALTO-IOM-1809-E
LEGEND:
Earth (yellow/green)
Phase
Neutral
Electronic control
Electronic control
Motor
Motor
Terminal board
Thermal protector
Thermal protector
Sizes 49 & 57
Pic. 37
EC MOTOR
UNIT LIMIT
FAN SPEED CONTROL
0-10 Vdc
2x0,5mmq
(shielded and twisted)
POWER SUPPLY ELECTRONIC CONTROL
230Vac/50Hz
3x1,5mmq
WIRING DIAGRAM
• 26 •
PE
A1
M1
XA1
Installation, operation and maintenance / INALTO-IOM-1809-E
Size 05 to 15
Pic. 38
EC MOTOR + LXTFZ01M CONTROLLER
1112
UNIT LIMIT
LXTFZ01M
LEGEND:
PE Earth (yellow/green)
A1 Electronic control
M1 Motor
XA1 Terminal board
Shielded and
twisted cable
2x0,50 mmq
Cross section area not indicated = 1,5 mmq
WIRING DIAGRAM
• 27 •
PE
L
N
Com
I
II
III
A1
C1
M1
Installation, operation and maintenance / INALTO-IOM-1809-E
Sizes 25 & 28
LEGEND:
PE Earth (yellow/green)
L Phase
N Neutral
Com Common
I Minimum speed
II Medium speed
III Maximum speed
A1 Power chart
C1 Capacitor
M1 Motor
Pic. 39
EC MOTOR + LXTFZ01M CONTROLLER
UNIT LIMIT
LXTFZ01M
Shielded and
twisted cable
2x0,50 mmq
Cross section area not indicated = 1,5 mmq
1112
WIRING DIAGRAM
• 28 •
PE
L
N
A1
A2
M1
M2
XA1
TH1
TH2
Installation, operation and maintenance / INALTO-IOM-1809-E
Sizes 49 & 57
Pic. 40
EC MOTOR + LXTFZ01M CONTROLLER
LEGEND:
Earth (yellow/green)
Phase
Neutral
Electronic control
Electronic control
Motor
Motor
Terminal board
Thermal protector
Thermal protector
LXTFZ01M
LIMITE DELLA MACCHINA
11 12
Shielded and
twisted cable
2x0,50 mmq
Cross section area not indicated = 2,5 mmq
UNIT LIMIT
WIRING DIAGRAM
• 29 •
1
2
3
4
P=8
bar max
0
°
6
0
°
1
432
Installation, operation and maintenance / INALTO-IOM-1809-E
TURNING THE COIL
CAUTION
The fan wheels may reach the speed of 1,000 rpm. Do not insert objects
into the electric fan and certainly not hands. 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 a maximum pressure of 8 bar.
To turn the coil, proceed as follows:
1. Disconnect the terminal board (6) from the side of the unit.
2. Remove the condensate collecting tray (2).
3. Remove the coil fi xing screws (5).
4. Take out the coil (3), being careful not to be cut by the fi ns and not to
damage them.
5. Remove the knockouts (1) on the opposite side of the unit (using a
screwdriver) to allow the coil connections to pass through.
6. Position the coil, turning it without tipping it upside down, so that the
fi ttings are in line with the holes left by the knockouts.
7. Fix the coil using the previously removed screws (5).
8. Shift the terminal board (fi xing it to the side opposite the water fi t-
tings) and the motor cables, fi xing them with their clamps. Ensure
that the cables pass through the hole in the side of the unit, protecting
them with the relative grommet. If it proves easier to carry out this
operation by separating the wires from the terminal board, mark the
positions of the wires to avoid making mistakes when reconnecting.
9. Reconnect the wires to the relative terminal board (6), taking care
that they are correctly positioned.
10. Replace the condensate collecting tray (2).
Pic. 41
CLEANING AND MAINTENANCE
CAUTION
Before carrying out any cleaning or maintenance work, disconnect
the unit from the mains electricity supply!
ROUTINE MAINTENANCE
The user is duty bound to have all maintenance operations carried out by
trained and qualifi ed personnel only. If the unit has to be dismantled, pro-
tect hands with work gloves.
Monthly checks:
- Ensure that the fan impellers are clean. If they are dirty, clean them by
suction so as not to damage them.
- Check the whole of the electrical part and in particular that the electrical
connections are tight.
Yearly checks:
- Check the whole of the electrical part and in particular that the electrical
connections are tight.
- Check the tightness of all the bolts, nuts and whatever else may be
loosened by the constant vibrations of the unit.
- Check the motor for dust, dirt or other impurities. Periodically check that
the motor works without unusual vibrations or noise and that the fan
inlet is not obstructed, which could otherwise leading to overheating of
the windings.
- Check the fans for dirt or any foreign matter.
CLEANING THE AIR FILTER
The unit is fi tted with an air fi lter on the fan inlet. During normal operation
the fi lter holds back 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 fol-
lows.
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.
Please clean the air fi lter every working season of the unit or more
frequently considering the unit activity.
NOTE: the fi lter may also be taken out from the side or from the top.
Pic. 42
• 30 •
Installation, operation and maintenance / INALTO-IOM-1809-E
WHA T TO DO IF...
There is little outfl owing air
Possible cause: incorrect speed setting on the control panel
Possible remedy: select the right speed
Possible cause: clogged fi lter
Possible remedy: clean the fi lter
Possible cause:
obstruction of the airfl ow on the intake or
delivery line
Possible remedy: remove obstruction
The motor does not turn?
Check that…
... the power supply is switched on
...
the switches or thermostats are in the correct
operating position
...
there is no foreign matter jamming the rotation
of the fan
The unit does not heat/cool as before?
Check that…
... the fi lter and the coil are clean
...
no air has entered the water circuit by bleeding from the relative valve
... the installation is correctly balanced
... the boiler/chiller is in proper working order
DISMANTLING THE UNIT
This unit 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 disman-
tling the unit is to disconnect it once and for all from the electricity supply.
This unit has been made using recyclable materials (copper, aluminium,
brass, plastic) and 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.
+ 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
lennoxemea.com
Given the continued commitment of Lennox in producing quality products, specifi cations, features and
dimensions are subject to change without notice and any liability is declined.
Improper operations of installation, adjustment, modifi cation, repair or maintenance could cause
damage personal injury or product.
Installation and repair should be performed by a qualifi ed technician.
INALTO-IOM-1809-E
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