Mitsubishi Electric VL-50S2, VL-50ES2-E, VL-50SR2-E Installation Manual

LOSSNAY

HANDBOOK

MODELS

VL-50S2-E

July 2017 No. U224-A

VL-50ES
VL-50SR

Filter

(Optional)

P-50F2-E
P-50HF

Pipe

(Optional)

2-E

P-50P-E
P-50PJ-E

2-E

2-E

Nameplate

Hood

(Optional)

P-50VSQ5-E

Warning:

Repair work must be performed by the manufacturer, its service
agent or a similarly qualified person in order to avoid hazards.

Contents

1. Safety precautions

2. Changed points

....................................................................

...........................................................................

3. Names and functions of components

4. Specifications

5. Outside dimensions

6. Electrical wiring diagrams

7. Circuit board diagrams

8. Principles of operation

9. Troubleshooting

10. Before receiving repair requests

11. Service inspection list

12. Overhauling procedures

12-1 VL-50S2-E, VL-50ES2-E

12-2 VL-50SR

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2-E

3-4

..........................................

7-8

10-11

13-17

18-31

18-24

25-31

4

5

6

9

12

17

18

13. Parts catalog

VL-50S

2-E

VL-50ES

VL-50SR

.........................................................................

.......................................................................

....................................................................

2-E

....................................................................

2-E

32-44

33-36

37-40

41-44

1. Safety precautions

Warning

Caution

Caution against

electric shock

Be sure to follow

this instruction.

Be sure to follow

this instruction.

Be sure to follow

this instruction.

Be sure to follow

this instruction.

Be sure to follow

this instruction.

Be sure to follow

this instruction.

Read the following precautions thoroughly before the maintenance, and then inspect and repair the product in a

safe manner.

The types and levels of danger that may arise if the product is handled incorrectly are described with the warning

symbols shown below.

Improper handling of the product may
result in serious injury or death.

Electric shock

If you must inspect the circuitry while the power is
on, do not touch the live parts.

(Failure to observe this warning may

result in electric shock.)

Modification is prohibited

Do not modify the unit.

(

Failure to observe this warning may
result in electric shock, fire and/or injury.

)

Prohibited

Proper electric work

Use the electric wires designated for electric work,
and conduct electric work in accordance with your
local electric work regulations and the installation
manual.

(Improper connection or wiring installation

may result in electric shock and/or fire.)

Turn off the power supply

Be sure to unplug the power cord, or shut off the
circuit breaker before disassembling the unit for
repair.

(Failure to observe this warning may

result in electric shock.)

Use proper parts and tools

For repair, be sure to use the parts listed in the parts
catalog of the applicable model and use the proper
tools.

(Failure to observe this warning may

result in electric shock, fire and/or injury.)

Replace damaged and/or degraded parts

Be sure to replace the power cord and lead wires if
they are damaged and/or degraded.

(Failure to observe this warning may

result in electric shock and/or fire.)

Check insulation

Upon completing repair work, always measure the
insulation resistance. Verify that it is at least 10 MΩ
(with a 500 V DC insulation resistance tester), and
then turn on the power.

(Inadequate insulation may result in

electric shock.)

Improper handling of the product may result in slight injury
or damage to properties including buildings and equipment.

Caution for injury

Do not work at a location where you do not have a

Wear gloves

Wear a pair of gloves when servicing.

sure footing.

(Failure to observe this caution may

(

Failure to observe this caution may result
in a fall.

)

Prohibited

result in injury to your hands from sharp
metal or other edges.)

Notes for servicing

●

Make sure that an earth leakage breaker and an overload protection device are installed, if they are not in­stalled, recommend the customer to install one.

Make sure that the product operates properly upon completion of repair. Clean the product and the surrounding

area, and then notify the customer of the completion of repair.

─ 3 ─

Precautions for soldering

Lead-free solder is used for the circuit boards of this product, and " " is marked on the circuit boards.
Observe the following precautions.

● When making repairs on these circuit boards, lead-free solder must be used.

● Make sure to use dedicated soldering irons to lead-free solder. (Do not use soldering irons that are used for

Sn-Pb [tin-lead] eutectic solder)

● It is recommended to use soldering irons having power consumption of 40 W or more.

2. Changed points

Item

Operation

means

Shape of

main circuit

board

Wiring for

terminal

block

New model Previous model

VL-50SR2-E VL-50S2-E VL-50ES2-E

Remote controller

Pull cord switch

80x129 mm 80x80 mm

Two wires Three wires

Terminal blockPower cable

L

Control switch

(Wall switch)

Terminal blockPower cable

Display

Operation lamp

Operating mode
selection switch

Remote controller
receiver

Display

─ 4 ─

Operation lamp

Display

Pull cord
(VL-50S

2-E only)

3. Names and functions of components

Panel

<Front panel>

Wire (fall prevention)

Exhaust air filter

<Filter>

Lossnay Core

(Heat exchanger)

Vertical mounting joint C

<Joint pipe>

Outside air filter

<Filter>

Hook

Shutter knob

Air supply/exhaust pipes A

<Pipe> (2 pcs.)

Weather cover

Operation lamp

Display
(Remove the provided

protective sheet.)

Pull cord

<Switch>
(VL-50S

2-E only)

Joint pipe B

<Joint pipe>

Note:
The names in the angle brackets < >
show the part names in the parts catalog.

About the filters

For

Exhaust air filter

Outside air filter

(Replacement filter: P-50F2-E)

Outside air filter can be replaced with the following high performance filter.

High performance
filter
(Optional parts)

(P-50HF2-E)

Exhaust

For

Supply

For

Supply

The filter prevents clogging of the internal compo­nents.

air

When Lossnay takes in outside air to a room, the
filter collects dust, sand, pollen or the likes from
outside air.

Note: Some fine particles or tiny insects may pass

air

air

through the filter. The high performance filter
is recommended for higher collecting effect.

The filter collects dust more efficiently than the
outside air filter.

Remote controller
(VL-50SR

2-E only)

Features

─ 5 ─

4. Specifications

Model

VL-50S
VL-50ES2-E

VL-50SR

2-E

2-E

Supply

voltage (V)

220 50

230 50

240 50

220 60

220 50

230 50

240 50

220 60

Frequency

(Hz)

Power

Notch

consumption

(W)

HI 19 51 70 36.5

LO 4 15 86 14

HI 20 52.5 69 37

LO 4.5 16 85 15

HI 21 54 68 37.5

LO 5 17 84 15.5

HI 21 54 68 37.5

LO 5.5 17 84 15.5

HI 19 51 70 36.5

LO 4.5 15 86 14

HI 20 52.5 69 37

LO 5 16 85 15

HI 21 54 68 37.5

LO 5.5 17 84 15.5

HI 21 54 68 37.5

LO 6 17 84 15.5

Air volume

3

/h)

(m

Temperature

exchange efficiency

(%)

Noise

(dB)

Weight

(kg)

6.2

6.2

* Noise values may be higher than those listed depending on the structure of the room.

─ 6 ─

5. Outside dimensions

VL-50S2-E, VL-50ES2-E, VL-50SR2-E

For horizontal mounting

Indoor air

Air supply
hole

Shutter knob

Air supply/
exhaust hole

40

exhaust hole

198.5

522

For vertical mounting

* For vertical mounting, the

display comes to the lower
side. (The unit cannot be
mounted upside down.)

Ŷ Remote controller

(VL-50SR2-E only)

1054

Indoor air
exhaust hole

Shutter
knob

Power cable
(VL-50S

Pull cord
(VL-50S

198.5

2-E only)

2-E only)

245

About

400

Display
(The figure shows
VL-50S

Indoor air
exhaust hole

2-E/VL-50ES2-E.)

Air supply
hole

Power cable
(VL-50S2-E only)

168

Mounting plate

Air supply/exhaust
pipe

114

°

φ

2

28

Wall thickness

50 to 650

Mounting plate

Attach the twisted part of
the vertical mounting joint C
toward the indoor side.

Weather cover

108

109

Weather cover

180

φ

108

180

φ

88

Pull cord

(VL-50S2-E only)

Display

Indoor air
exhaust hole

Ŷ Mounting position diagram (seen from inside)

Mounting plate temporary
fixing hole position (For horizontal mounting)

Edge of main unit Mounting hole 53 – ø6

Mounting plate

245

223.5

Unit hanging screw
position
(For vertical mounting)

Mounting plate
temporary fixing hole
position
(For vertical mounting)

Unit hanging screw position

(For horizontal mounting)

125

200

210.5

min. min.

310 360

Center line

300

522

216

184

26.5

96.5

Wall

thickness

120 to 730

Power and connection
cable pullout area

(VL-50ES

11.5

21

2-E only)

min.

193

151.5

40.539.5

20×8＝160

min.

182

109

Air supply/exhaust
pipe

Air supply/exhaust
hole
(ø120 wall hole)

─ 7 ─

Unit (mm)

P-50F2-E

76

13

154

P-50HF

2-E

76

153

Unit (mm)

8

─ 8 ─

Unit (mm)

6. Electrical wiring diagrams

(1) Switch wiring diagrams

VL-50ES2-E

Red

White

Blue

Terminal block Switch Circuit breaker

220/230/240 VAC 50 Hz
220 VAC 60 Hz

VL-50SR

2-E

Red

White

Terminal block Circuit breaker

(2) Motor coil diagram

VL-50S2-E, VL-50ES2-E, VL-50SR2-E

Coil resistance at a temperature of 30°C

Thermal fuse

145Υ

220/230/240 VAC 50 Hz
220 VAC 60 Hz

0FRLOȍ6FRLOȍ

White

─ 9 ─

Black

Red

7. Circuit board diagrams

Circuit board diagrams and check points

(1) VL-50S

AC power supply input
220/230/240 VAC 50 Hz
220 VAC 60 Hz

White connector

Phase advance capacitor

White connector

2-E (Pull cord type)

Power cord

Motor

White connector

2 ȝF



Operation lamp

(green)

Not in use



＜Display circuit board＞



VL-35-B

Voltage-dividing capacitor





＜Main circuit board＞

VL-35-A



Blue
White

Red

ȝ)ȝ)

White connector

Switch with a pull cord

(2) VL-50ES2-E (Wall switch type)

AC power supply input

220/230/240 VAC 50 Hz
220 VAC 60 Hz

Control switch

Terminal block

Not in use

Motor

White connector

Phase advance capacitor

2 ȝF

White connector

＜Display circuit board＞

Red







Operation lamp



(green)

VL-35-B

Voltage-dividing capacitor

ȝ)ȝ)

White connector

Blue



White

＜Main circuit board＞

VL-35-A

─ 10 ─

Not in use

(3) VL-50SR2-E (Remote controller type)

AC power supply input
220/230/240 VAC 50 Hz
220 VAC 60 Hz

White connector

White connector

Phase advance capacitor

2 ȝF

White connector

Voltage-dividing capacitor

ȝ)

(1ȝF and 2ȝF capacitors in series)

Blue connector

Motor

Terminal

block

5 V DC

(C12 (+))

＜Main circuit board＞

VL-36M

GND
(J10)

12 V DC

(J6)

＜Display circuit board＞

VL-36S

High operation lamp

(Green)

Low operation lamp

(Green)

Remote control

signal receiver IC

Operating mode

selection switch

─ 11 ─

8. Principles of operation

(1) VL-50S2-E (Pull cord type)

• Operating mode (fan speed) can be switched from HI (High) to LO (Low) to OFF by using the switch with a
pull cord.

<Lighting status of the operation lamp under each operating mode>

Operating mode of the fan OFF HI LO

Operation lamp (LED1) Off Lit Lit

(2) VL-50ES2-E (Wall switch type)

• Operating mode (fan speed) can be switched by using the control switch. Operations may vary depending
on the switches installed.

220/230/240 V is applied between HI and COM2

220/230/240 V is applied between LO and COM2

<Lighting status of the operation lamp under each operating mode>

Operating mode of the fan OFF HI LO

Operation lamp (LED1) Off Lit Lit

HI (High)

LO (Low)

(3) VL-50SR2-E (Remote controller type)

• Operating mode (fan speed) can be selected from HI (High), LO (Low), and Power ON/OFF by using the

remote controller.

• Operating mode (fan speed) can be switched from HI (High) to LO (Low) to OFF by using the operating

mode selection switch on the main unit.

<Lighting status of the operation lamps under each operating mode>

Operating mode of the fan OFF HI LO

Operation lamp (LED201) Off Off Lit

Operation lamp (LED202) Off Lit Off

─ 12 ─

9. Troubleshooting

Work precautions

• When servicing, be sure to recreate the malfunction two or three times before starting repairs.

• When servicing, always take care to keep proper footing.

• Before starting the service, always unplug the power cord from the outlet, or turn off the circuit breaker

when no power cord plug is provided. Sufficient care must be taken to avoid electric shock or injury.

• Make sure to connect the power supply wires correctly.

• When removing the circuit board, always hold it at both ends and remove carefully so as not to apply force

to the surface mounted parts.

• When removing the circuit board, be careful of the metal edges on the board.

• When removing or inserting the connectors for the circuit board, hold the entire housing section. Never pull

on the lead wires.

• When circuit board failure is considered to be a cause, check closely for any broken section on the copper

foil patterns, burning or discoloration of parts.

• After replacing a circuit board, make sure to restore the same settings as before the replacement.

The part names in the text are standardized with the part names in the parts catalog. (There are some

exceptions.)

(1) Service Flowchart

After checking the preliminary check items below, follow troubleshooting 1 and 2 for servicing.

Preliminary check items

1. Condition of trouble

2. Frequency of trouble:
The date of starting
operation and occur­rence of trouble

Troubleshooting 1 Lossnay does not operate, or it stops by itself.

Check (2) Initialization checklist.

Troubleshooting 2 Lossnay operates abnormally.

Check (3) Lossnay checklist.

Check "10. Before receiving repair requests."

─ 13 ─

(2) Initialization checklist

Troubleshooting 1 Lossnay does not operate, or it stops by itself.

No.

Error Cause Action

1 Lossnay does

not operate.

<VL-50S

• Is the power plug connected to the
power source of the rated voltage?

<VL-50ES2-E, VL-50SR2-E>

2-E>

Supply the rated voltage 220/230/240 VAC.

If a power failure has occurred, wait for power
failure recovery.

• Is the rated voltage 220/230/240 VAC
supplied to the terminal block?

<VL-50ES

2-E, VL-50SR2-E>

Are there any poor connections of the

Check that the circuit breaker is ON.

Connect the lead wires securely.
terminal block?
<VL-50S
Is the following power supply connec-

2-E, VL-50SR2-E>

Connect the connector securely.
tor on the main circuit board securely
connected?
VL-50S2-E: CN2
VL-50SR2-E: CN1

Is the current fuse on the main circuit
board blown?

If the current fuse is blown, determine the

cause of the failure (abnormal voltage applica-

tion or wrong connection), and eliminate the

cause. Then, replace the main circuit board

together with the display circuit board.
Are there any problems with the main
circuit board or display circuit board?

Diagnose the problems of the circuit boards

by checking the Basic checklist for the major

components (Table 1). (See page 16.)
<VL-50S
Is the power cord properly plugged into

2-E>

Plug the power cord properly.
the wall outlet?
<VL-50S
Is the switch with a pull cord turned

2-E>

Turn ON the switch with a pull cord.
ON?
<VL-50SR

2-E>

Is the battery exhausted? Replace it with a commercially available lithium

battery (CR2025).
<VL-50SR

• Is the remote controller operated at

the position too far away from the
main unit?

• Is the remote controller case installed

outside the remote control signal
receiving range?

2-E>

The remote control signal receiving range is

shown below.

Front: 4 m

Left: 3 m

45°

45°

Right: 3 m

2 Lossnay stops

by itself.

<VL-50ES2-E, VL-50SR2-E>
Are there any poor connections of the
terminal block?
Are there any problems with the main
circuit board or display circuit board?

─ 14 ─

45°

Downward: 3 m

Receiver

Connect the lead wires securely.

Diagnose the problems of the circuit boards

by checking the Basic checklist for the major

components (Table 1). (See page 16.)