Mitsubishi Electric EF-35UDT-GL Service manual

1
Pressurized ventilators (for device cooling)
Installation/Instruction Manual
Be sure to read this manual before starting installation
work to ensure correct and safe installation. Dealers
and electrical contractors shall perform installation in
accordance with the standards of each country.
Ŷ7KLVIDQLVDWKUHHSKDVHSURGXFW
Check the type of power supply before performing
the installation work.
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Blades cannot be replaced and wire connections
cannot be changed.
Please read this manual
carefully before use for proper
and safe use.
After reading, store the manual
in a handy location for easy
access.
After you are finished with the installation work, be sure to give this manual to the customer.
For customers For electrical contractors
Model
200 V type
400 V type
Blade diameter (cm) Indoor or outdoor
35
40
50
35
40
50
Indoor
EF-35UDT-GL
EF-40UET-GL
EF-50UFT-GL
EF-35UDT40A-GL
EF-40UET40A-GL
EF-50UFT40A-GL
1504876HA7801
Contents
Explanation of installation work (For electrical contractors)
1. Safety Precautions ………………………………… 2
2. Usage and usage environment …………………… 3
3. Precautions before Installation …………………… 3
4. Outside Dimensions ………………………………… 4
5. Installation Procedure ……………………………… 5
6. Electrical Work ……………………………………… 6
7ULDO2SHUDWLRQ ……………………………………… 6
Handling Explanation(For customers)
1. Safety Precautions ……………… 7
2. How to Use the Fan ……………… 8
3. Maintenance ……………………… 8
4. Maintenance and Inspection …… 9
5. Before Requesting Repair………10
$IWHU6DOHV6HUYLFH …………… 11
7. Specifications …………………… 11

2
Explanation of installation work
Do not install the fan in a place
where explosive dust or gas is
generated or could be generated.
- Failure to heed this warning may
result in explosion or fire.
Be sure to install the ground wire.
- Device failure and electric leakage
may cause electric shock.
Do not use the fan for purposes other
than ventilation and blowing air
- Failure to heed this warning may
result in fire, electric shock or injury.
Do not use the fan at other than the
rated voltage and frequency
- Failure to heed this warning may
result in fire or electric shock.
Incorrect handling could result in death or serious
injury
WARNING
Prohibited
Check
grounding
When using the fan to exhaust air from
a room where a combustion appliance
for exhausting air through a chimney is
installed, install an air supply opening
large enough to prevent flowing of
exhaust air back into the room.
- Failure to heed this warning may
result in carbon monoxide poisoning.
Install the fan in such a way that a
wood structure covered with metal
lath, wire lath, or metal sheeting and
the metal body part do not directly
contact each other.
- It could cause fire when electrical
leakage occurs.
Be sure to install the electric
leakage breaker
- Electric leakage may cause electric shock.
Because this product is designed to
be installed at a higher location,
install the product at least 2.3 m
above the floor.
- Failure to heed this warning may
result in injury.
Be sure to turn off the distribution
panel circuit breaker before proceeding
with maintenance and inspection.
- Failure to heed this warning may
result in electric shock or injury.
Follow
instructions
Follow
instructions
Follow
instructions
Follow
instructions
1. Safety Precautions
Do not install the fan in a location
with high humidity such as a
bathroom (relative humidity 90% or
higher).
- Failure to heed this warning may
result in electric shock or fire.
Securely install the fan on a solid,
vibration-free location.
- Injury may result if the fan should fall.
Incorrect handling could result in injury or property damage
to buildings and machinery
Do not install the fan in a place where
it could be exposed to flame directly.
- Failure to heed this warning may
result in fire.
Securely install blades and parts.
- Injury could result if parts fall.
Electrical contractors shall perform
electrical work and grounding work.
- Electrical work by a person other than
a qualified electrician could result in
electric shock or fire.
Do not install the fan in a place
where there is a possibility of snow
accumulation or avalanche.
- Injury could result if parts are
damaged or fall.
Electrical work must be performed
according to the standards of each
country. Never perform connection
by hand-twisting wires.
Furthermore, power lines must be
connected inside a box and box
cover for rigid metal conduit.
-
Connection failure and faulty wiring work
could result in electric shock or fire.
Wear gloves before proceeding with
unpacking, installation, maintenance/
inspection and cleaning.
- Failure to heed this warning may
result in injury caused by, for
example, the edge of the plate.
CAUTION
Prohibited
Cannot be
installed in
a bathroom
The type and degree of danger resulting from incorrect handling are denoted by the following symbols.
For electrical contractors

3
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3. Precautions before Installation
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2. Usage and usage environment
Environment and restriction condition
Protection Rating IPXX
Class of protection Class Ⅰ
Over voltage category Class Ⅱ
Pollution degree Class Ⅱ
Permissible Temp. in use - 15°C to 50°C (The unit must not be frozen.)
Permissible Humidity in use 90% at 20°C
Permissible Altitude in use 1000m or less
Installation condition +LJKSODFHLQVWDOODWLRQPRUKLJKHUIURPWKHÀRRU
Indoor installation

4
4. Outside Dimensions
EF-35UDT-GL, EF-35UDT40A-GL
EF-40UET-GL, EF-40UET40A-GL
EF-50UFT-GL, EF-50UFT40A-GL
Unit (mm)
EF-40UET-GL
EF-40UET40A-GL
EF-50UFT-GL
EF-50UFT40A-GL
A
520
620
B
460
560
Model C
490
605
D
405
510
E
400
500
F
131
131
G
222
258
H
80
95
J
196
232
Unit (mm)
Rotation
Rotation
470
434
470 434
φ415
φ350
φ355
181
221
189
70
1010
Power cable effective
length 1 m
Vinyl cab tire cable
4-core AWG18
Power cable effective
length 1 m
Vinyl cab tire cable
4-core AWG18
Ground wire
Nameplate
4×φ12 mounting hole
Air flow
Air flow
A
B
A B
φ
C
φ
D
φE
φF
GH
1010
Ground wire
4×φ14 mounting hole
Nameplate
J

5
5. Installation Procedure
Wear gloves when unpacking or installing.
-
Failure to heed this warning may result in injury
caused by, for example, the edge of the plate.
Securely install the fan on a solid,
vibration-free place
- Injury may result if the fan should fall.
CAUTION
Because this fan is designed to be
installed in a higher location, install the
fan at least 2.3 m above the floor.
- Failure to heed this warning may result in
injury.
WARNING
When unclean air is discharged, a place where fresh air enters is required.
Install an air intake port, which has a size equivalent to or larger than the mounting frame of the
fan, at the opposite side to the fan installed side of the room.
1. Provide an opening and mount the
mounting bolts in the locations
indicated on the figure on the left.
2. Mount the fan.
Put the mounting bolts through the
mounting holes and then use washers
and nuts to secure them properly.
Note:
ƔDo not use the knock out holes for
product mounting. (Product vibration,
drop/deformation cause)
B
Ƒ$
B
30
Mounting bolt
Opening
Type $B Bolt diameter
35cm
40cm
50cm
370
410
510
434
460
560
M8
M12
M12
Unit (mm)
Ɣ Remove the drain cap (drain plug) ... If the fan is used in a location with high humidity
If the fan is used in a location with high humidity, install the fan in such a way that the drain cap
(drain plug) provided on the motor and motor cover comes to the bottom. Remove the drain cap
(drain plug) on the bottom.
Note:
ƔIn dusty places, use the fan with the drain cap (drain plug) attached and open the drain from
time to time.
(With the motor cover) (Without the motor cover)
ƔWhen the fan is directly installed on a wall surface as exhaust heat
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Drain cap
Drain cap Drain cap
(Drain plug)
Drain cap
(Drain plug)
Mounting bolt
Fan
Mounting hole
Washer
(commercially available)
Nut
(commercially available)

6
6. Electrical Work
Electrical work must be performed according to
the standards of each country. Never perform
connection by hand-twisting wires. Furthermore,
power lines must be connected inside a box and
box cover for rigid metal conduit
- Connection failure and faulty wiring work could
result in electric shock or fire.
CAUTION
Do not use the fan at other than the
rated voltage and frequency
- Failure to heed this warning may result
in fire or electric shock.
Be sure to install the ground wire
- Device failure and electric leakage
may cause electric shock.
WARNING
 Perform connection after checking that the power supply
is correct. If the fan is operated with the wrong power
supply, the motor could burn out.
 Be sure to install an electric leakage breaker.
 Always ground the grounding terminal.
 Circuit breakers conforming to EN60947-2 must be used.
Circuit breakers of which contact gaps are 3 mm or more
must be used. We recommended a Mitsubishi Electric
non-fuse circuit breaker (Model: NF32-SVF [Rated
current: 15 A, number of poles: 3]).
 Connect the TN system to a 3-phase, 3-wire power supply.
 The ground wire must always be connected.
 For wires that are to be connected to the power cord
including the grounding wire, use electrical wire with a
copper conductor size of 0.75 mm2or above rated for a
voltage of 300 V between conductor and ground and a
voltage of 500 V, 7 A, or above between conductors.
 To connect to the power supply, install a metal electrical
conduit box near the fan installation area (within 0.8 m in
direct distance) and make connections inside the box.
 Install another separate metal box, and connect the
circuit breaker and the electromagnetic switch together
inside the box.
Metal electrical
conduit box
Within
0.8 m
Fan
Motor
PE
L1
L2
L3
Connection Diagram
The terminals are labeled on the end of
the power cord as shown left. (Ground
is marked with this symbol: )
The conductor wire gauge for the power
cord is 18 AWG (Min 0.824 mm
2
).
Metal electrical conduit box (ventilator's power cord connection)
Electromagnetic
switch
Circuit
breaker
 To protect against overload on the motor, use overload
protection equipment that employs a magnetic switch
(magnetic contact + thermal relay). Overload protection
equipment must be attached for every unit. A magnetic
switch conforming to EN60947-4-1 must be used.
We recommend a magnetic switch manufactured by
Mitsubishi (model: MSO-N10 (The specification is
described in Table 1)). The setting current value of
the magnetic switch must be set per the information
described in Table 2.
Table 2. Magnetic Switch Setting Current Value
Power Supply Model
Magnetic Switch Setting
Current Value (A)
Heater
Desig.
(A)
50Hz 60Hz
Three-phase
50/60Hz
200-220V
EF-35UDT-GL 1.3 1.4 1.3
EF-40UET-GL 2.3 2.7 2.5
EF-50UFT-GL 3.2 3.2 3.6
Three-phase
50/50/50/60/60Hz
380/400/415/400/440V
EF-35UDT40A-GL 0.70.650.7
EF-40UET40A-GL 1.2 1.2 1.3
EF-50UFT40A-GL 1.7 1.7 1.7
7. Trial Operation
After installation work, check the
following items.
1. Is the fan installed correctly?
2. Is not the power cord damaged?
3.
Has grounding work been performed correctly?
4. Is the power supply voltage correct?
Turn ON the breaker to perform trial operation.
5. Is not there abnormal vibration or noise?
(Where there is an abnormality, stop operation
and check the electrical work.)
6. Is the rotation direction reversed?
(If the rotation direction is reversed, switch two
of the three power wires.)
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Coil (kW) Auxiliary Contact
Standard (spec.)
220-220V 380-440V 500-550V
2.2 2.7 2.7 1a (1b)
Combination with Thermal Relay
Model Heater Desig.(A)
TH-N12
(KP)
0.12, 0.17, 0.24, 0.35, 0.5, 0.7, 0.9, 1.3,
1.7, 2.1, 2.5, 3.6, 5, 6.6, 9

7
Do no use the fan in such a way that it
is started and stopped more than 50
times a day
-
Injury could result if parts are damaged or fall.
When the blades are stained badly,
make sure to clean them.
- Injury could result if parts are damaged or
fall due to vibration.
Be sure to wear gloves during cleaning,
maintenance and inspection.
-
Failure to heed this warning may result in injury
caused by, for example, the edge of the plate.
This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given
supervision or instruction concerning use of the
appliance by a person responsible for their safety.
Children should be supervised to ensure that they
do not play with the appliance.
(IEC60335-2-80/IEC60335-1)
If the supply cord is damaged, it must be replaced
by the manufacturer, its service agent, or similar
qualified persons in order to avoid a hazard.
This appliance can be used by children aged
from 8 years and above and persons with
reduced physical, sensory or mental capabilities
or lack of experience and knowledge if they have
been given supervision or instruction
concerning use of the appliance in a safe way
and understand the hazards involved. Children
shall not play with the appliance. Cleaning and
user maintenance shall not be made by children
without supervision. (EN60335-2-80/EN60335-1)
Incorrect handling
could result in death
or serious injury
Incorrect handling could result
in injury or property damage to
buildings and machinery
Do not use the fan when it is subject to
abnormal vibration.
-
Injury may result if the fan or parts should fall.
If the fan will not be operated for a long
time, be sure to turn off the circuit
breaker on the power distribution panel.
- Failure to heed this warning may result in
electric shock due to deteriorated
insulation or fire due to electric leakage.
Refrain from immersing in water
or splashing the product with
water.
- Failure to heed this warning could
result in short circuit, electric
shock or fire.
Never make modification under
any circumstances.
Only qualified personnel can
perform disassembly and repair.
-
Failure to heed this warning may
result in fire, electric shock or
injury.
For repair, contact the dealer from
whom you purchased the fan.
Do not insert fingers or objects
into the fan during operation as
doing so is dangerous
- Failure to heed this warning may
result in injury.
Never touch the fan when it is
stopped with the power on,
when there is an abnormality
(for example, if you smell
burning), or when there is a
power outage.
- It may start suddenly, resulting in
injury or electric shock.
Turn off the distribution board
circuit breaker before
proceeding with cleaning,
maintenance, and inspection.
- Failure to heed this warning may
result in electric shock or injury.
Do not operate with wet hands.
- Failure to heed this warning may
result in electric shock or injury.
WARNING CAUTION
Prohibited
No
disassembly
Follow
instructions
Follow
instructions
No wet
hands
No water
exposure
Handling Explanation
1. Safety Precautions
Touching
prohibited
The type and degree of danger resulting from incorrect handling are denoted by the following symbols.
For customers

8
3. Maintenance
Cleaning of blades, etc.
Overall cleaning
Cleaning should be performed about every three months.
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Note:
- Do not use the following solvents when performing maintenance:
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Wear gloves during cleaning and
maintenance.
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CAUTION
Be sure to turn off the distribution panel
circuit breaker before proceeding with
cleaning and maintenance.
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WARNING
To operate ...7XUQ21WKHEUHDNHU
To stop ...7XUQ2))WKHEUHDNHU Do not insert fingers or objects into the fan
during operation as doing so is dangerous
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Do not operate with wet hands
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WARNING
2. How to Use the Fan

9
Be sure to wear gloves during
maintenance and inspection
- Failure to heed this warning may result in
injury caused by, for example, the edge of
the plate.
CAUTION
Be sure to turn OFF the distribution panel
circuit breaker before proceeding with
maintenance and inspection.
- Failure to heed this warning may result in
electric shock or injury.
WARNING
When performing cleaning once every three months, inspect the following items:
Is there rust on the fan itself or
the nuts or bolts used to mount
the product rusted?
Is there rust on the blade fix nuts
or the blades?
Use urethane paint to address partial rusting.
If there is rust on a significant portion of a part,
replace the part. (Injury could result if the fan
falls.)
Use urethane paint to address partial rusting.
If there is rust on a significant portion of a part,
the part must be replaced. Ask your dealer or
an electrical contractor to repair the unit. (Injury
could result if the blades are damaged or the
fan falls.)
Tighten the nuts so that the fan does not
wobble.
(Injury may result if the fan or blades fall)
The motor needs to be replaced.
Ask your dealer or an electrical contractor to
repair the fan.
The motor needs to be replaced.
Ask your dealeror an electrical contractor to
repair the fan.
The blades need to be replaced.
Ask your dealer or an electrical contractor to
repair the fan. (Injury could result if the blades
are damaged or the fan falls.)
Perform cleaning.
The bearing or motor needs to be replaced.
Ask your dealer or an electrical contractor to
repair the fan.
Note: The service life of the bearing is about
30,000 hours under continuous operation in a
50 ºC environment. (The service life may get
shorter depending on the operating
environment) Inspect and replace if necessary.
Does the motor appear to be
discolored?
Is the power cable damaged?
Are there cracks on the blades?
Is there dust on high temperature
parts such as the motor?
If a filter or insect screen is used,
is it clogged?
Are the nuts used to mount the
fan loose?
Are the blades and motor
properly secured?
Rust
Wobbling
Damage
Dust
Is there abnormal noise while the
fan is turning?
Abnormal
noise
Inspection contentItem Action
4. Maintenance and Inspection

10
After the fan used for a long time for safety, it is recommended that the fan be
checked even if the fan has no trouble.
If the following phenomenon is found and cannot be corrected after inspection by the customer, turn
off the breaker and ask your dealer or an electrical contractor to inspect and repair the fan. Please
ask your dealer or an electrical contractor about the cost of repairs.
Note:
The fan has a built-in auto-resetting thermal protector inside for protection against the damage by
a fire. (200 V type)
The above overload protection equipment will activate automatically to stop rotation in the case of
locked operation, overloading, open-phase operation, application of incorrect voltage, or an
ambient temperature in excess of the rated level. If this should occur, turn OFF the power and
eliminate the cause of the problem.
(Use of a filter or insect screen could cause clogging.)
To restart operation, take the following action.
<Action>
Turn OFF the power, remove the cause and wait until the motor gets cool, then use the fan after
confirming that the motor operates normally.
If power is not switched OFF and continues to be supplied, the thermal protector will trip
repeatedly, resulting in a contact failure or contact welding.
If this should happen, the motor must be changed. Switch OFF the power and ask a qualified
electrical contractor to change the motor.
Phenomenon Cause/Action
The breaker is OFFThe fan does not
start even though
the power is ON
Stop and operation
are repeated (For
200 V type)
The overload protection
equipment of the motor is
running
The blades are loose
The main unit is loose
There are abnormal sounds
from the bearing
Rust has occurred over a
wide range
There is abnormal
sound or vibration
during operation
Something is caught on the
blades
The ambient temperature has
exceeded 50 ºC
There is corrosion inside the
motor
Turn ON the breaker
Turn OFF the power, remove the cause,
wait until the motor gets cool and then turn
ON the power (Note)
Tighten blade fix nuts
Tighten main unit fix nuts
Change the bearing.
Ask your dealer or an electrical contractor
to repair the fan.
Replace rusted parts.
Ask your dealer or an electrical contractor
to repair the fan.
Remove the caught object
The fan cannot be used in a location where
the ambient temperature exceeds 50 ºC.
Lower the ambient temperature or use
another model.
Change the motor.
Ask your dealer or an electrical contractor
to repair the fan.
There is a burnt
smell
5. Before Requesting Repair

11
Model
Blade
diameter
(cm)
Voltage
(V)
Frequency
(Hz)
Air
volume
(m3/h)
Noise
(dB)
Current
(A)
Power
Consumption
(W)
Maximum
load
current
(A)
Starting
current
(A)
Weight
(kg)
EF-35UDT-GL 35
Three-
phase
200-220
50
3000 45-45.5
0.85-1.0 130-145 0.98-1.06 5.37-6.01 9.2
EF-40UET-GL 40 4800 52-52
1.45-1.67 245-273 1.90-1.95 15.0-16.0 13.2
EF-50UFT-GL 50 7200 52-52
2.00-2.25 370-400 2.75-2.65 20.1-21.3 19.5
EF-35UDT-GL 35
60
3600 49-49.5
0.8-0.85 180-185 1.15-1.14 4.96-5.28 9.2
EF-40UET-GL 40 5520 55-55.5
1.44-1.50 355-374 2.3-2.1 13.6-14.5 13.2
EF-50UFT-GL 50 8400 56-56.5
2.1-2.1 530-560 2.75-2.7 18.4-19.3 19.5
EF-35UDT40A-GL 35 Three-
phase
380/400/415
50
3000
44.5/45/45 0.47/0.5/0.54 136/145/150 0.55/0.57/0.59 3.00/3.12/3.20 9.2
EF-40UET40A-GL 40 4800 51.5/52/52 0.76/0.78/0.86 265/275/285 1.0/1.02/1.04 7.00/7.35/7.50 13.2
EF-50UFT40A-GL 50 7200 52/52/52 0.95/1.00/1.05 345/365/375 1.39/1.40/1.40 9.9/10.5/10.7 19.5
EF-35UDT40A-GL 35 Three-
phase
400/440
60
3600 49/49.5 0.44/0.47 185/195 0.54/0.56 2.89/3.05 9.2
EF-40UET40A-GL 40 5520 55/55.5 0.77/0.80 370/390 1.01/1.00 6.72/7.10 13.2
EF-50UFT40A-GL 50 8400 56/56 1.03/1.05 540/545 1.46/1.28 9.56/10.3 19.5
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For after-sales service, ask the sales agent from whom you purchased the product.
To change the motor, contact your dealer and tell the fan model name to request repair.
6. After-Sales Service

12
EF-35UDT-GL EF-40UET-GL EF-50UFT-GL EF-35UDT40A-GL EF-40UET40A-GL EF-50UFT40A-GL
12YHUDOO(I¿FLHQF\ 28.5 30.5 31.8 28.7 30.6 31.8
2
Measurement Category A
3
(I¿FLHQF\&DWHJRU\ Static
4(I¿FLHQF\*UDGH 40 40 40 40 40 40
5 VSD N/A
6
Year of Manufacture 2014 2014 2014 2014 2014 2014
7Manufacturer
Information
MITSUBISHI ELECTRIC CORPORATION
Tokyo Bldg., 2-7-3, Marunouchi, Chiyoda-ku, Tokyo 100-8310, Japan
8 Model Number
EF-35UDT-GL EF-40UET-GL EF-50UFT-GL EF-35UDT40A-GL EF-40UET40A-GL EF-50UFT40A-GL
9
Motor Power Input (kW) 0.15 0.31 0.51 0.17 0.32 0.51
Flow Rate (m3/s) 0.56 0.92 1.25 0.55 0.89 1.25
Total Static Pressure (Pa) 80 99 145 83 106 148
10
Rotations per Minute 1436 1460 1445 1436 1458 1445
11 6SHFL¿F5DWLR 1
12
Information
relevant for
facilitating
disassembly,
recycling or
disposal at end-
of-life
This fan should be disposed of separately from household waste in line with
local laws and regulations.
When this fan reaches its end of life, dispose of it at your local waste collection
point/recycling centre.
The separate collection and recycling of this fan at the time of disposal will help
conserve natural resources and ensure that it is recycled in a manner that
protects human health and the environment.
For more information please contact us at http://www.mitsubishielectric.co.jp/
factory/sofuki/
13
Information
relevant to
minimise impact
on the
environment and
ensure optimal
life expectancy
as regards
installation, use
and maintenance
of the fan
<Cleaning of blades, etc.>
Cleaning should be performed about every three months.
<Overall cleaning>
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once a year).
- Do not use the following solvents when performing maintenance:
Paint thinner, alcohol, benzene, gasoline, kerosene, spray solvents, alkaline
detergents, chemicals from wipes, or detergents containing abrasives such
as cleansers, or the like.
14
Description of
additional items
used when
determining the
fan energy
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Model Name
Item