Mitsubishi Electric LGF-100GX-E User manual

Warning:

Repair work must be performed by the manufacturer, its service

agent or a similarly qualified person in order to avoid hazards.

LOSSNAY

HANDBOOK

MODELS

LGF-100GX-E

April 2019 No. U174-C

Remote controller (Optional)

PZ-60DR-E

Filter

PZ-100GF-E (Pre-filter)

PZ-100GFM-E (High efficiency filter)

Nameplate

Contents

1. Safety precautions

....................................................................... 3

2. Speciﬁcations .............................................................................. 4

3. Outside dimensions

.................................................................. 5-6

4. Electrical wiring diagram ............................................................. 7

5. Basic circuit diagram ................................................................... 8

6. Fundamentals of operation ..................................................... 9-31

7. Troubleshooting

.................................................................... 32-52

8. Overhaul procedure............................................................... 53-55

9. Parts catalog ........................................................................ 56-64

LGF-100GX-E................................................................. 57-64

─3 ─

Electric shock

If you must inspect the circuitry while the power is

on, do not touch the live parts.

(Failure to heed this warning may result

in electric shock.)

Modification is prohibited

Do not modify the unit.

(Failure to heed this warning may result in elec-

tric shock, fire and/or bodily injury.)

Proper electric work

Use the electric wires designated for electric work,

and conduct electric work in accordance with the

"Electric Installation Engineering Standard", the

"Indoor Wiring Regulations", and the Installation

Work Guide.

(Incomplete connection or wiringin-

stallation may result in electric shock

and/or fire.)

Turn off the power supply

Be sure to shut off the earth leakage breaker be-

fore disassembling the unit for repair.

(Failure to heed this warning may

result in electric shock.)

1. Safety precautions

Be sure to 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.

Be sure to follow

this instruction.

Caution against

electric shock

Prohibited

Be sure to follow

this instruction.

Use proper parts and tools

For repair, be sure to use the parts listed in the

service parts list of the applicable model and use

the proper tools.

(Failure to heed this warning may

result in electric shock, fire and/or

bodily injury.)Be sure to follow

this instruction.

Replace damaged and/or degraded parts

Be sure to replace the power-supply cord and

lead wire in the event that they are damaged and/

or degraded.

(Failure to heed this warning may

result in electric shock and/or fire.)Be sure to follow

this instruction.

Check insulation

Be sure to measure the insulation resistance

once the repair work is complete, and turn on the

power supply after verifying that an insulation re-

sistance of at least 10MΩis obtained.

(If an insulation problem exists, it

may result in electric shock.)Be sure to follow

this instruction.

Caution for bodily injury

Do not work at a location where you

do not have a sure footing.

(Failure to heed this caution may

result in a fall.)

Wear gloves

Wear gloves when servicing.

(Failure to heed this caution may re-

sult in injury to your hands from sharp

metal or other edges.)

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.

Request for repair

Inspect the grounding, and repair it if it is incomplete. Make sure that an earth leakage breaker or an overload

protection device is installed. If it is not installed, recommend the dealer to install one.

Caution Incorrect handling of the product may result in serious injury or

damage to properties including buildings and equipment.

Be sure to follow

this instruction.

Prohibited

Warning Incorrect handling of the product may

result in serious injury or death.

─4 ─

2. Speciﬁcations

─5 ─

3. Outside dimensions

LGF-100GX-E

Unit (mm)

─6 ─

PZ-60DR-E

Unit (mm)

PZ-100GF-E PZ-100GFM-E

Unit (mm)Unit (mm)

─7 ─

4. Electrical wiring diagram

LGF-100GX-E

EstablishConnectiontoTM1,TM2,TM3,TM4,andTB5shownindottedlines

atworksite.

Donotconnectaninverterforpowersupply.

─8 ─

5. Basic circuit diagram

Circuit board diagram and check points

* Fan drive output voltage: Each 220 to 240 V AC

During

operation: 0Ω

When

stopped: Ω

(TM4 9,10)

5 V DC

(C6) GND

(C5)

(TAB3)

LED 4 (Red)

•Energized: Lit

•Not

energized: OFF

(TAB1, TAB2)

12 V DC

(C4,C5)

15 V DC

(C3,C8)

LED 1 (Green)

•Normal

: unlit

•During

an error: blinking

(TAB5)

EA fan drive

(CN9)

Extra

High High Low

Transformer

secondary

(CN2)

(output)

11 to 20 V AC

Lossnay remote controller

(PZ-60DR-E, PZ-41SLB-E)

and transmission cable

between Lossnay units

(TM4 , )

10 to 15V DC

Transformer

primary (input)

(CN1)

220 to 240 V AC

Fuse

(5 A/250 V)

For damper

motor drive

(CN7)

220 to

240 V AC

During an

error : 0Ω

Normal: Ω

(TM3 7,8)

When SW5-6 is OFF

During bypass

ventilation: 0Ω

During Lossnay

ventilation: Ω

When SW5-6 is ON

During operation

and when the outdoor air

temperature is -5°C to

15°C: 0Ω

While the unit is stopped,

or when the outdoor air

temperature is 15°C: Ω

(TM3 6,7)

Thermistor

(RA) (OA)

(CN5)

LED 2 (Red)

When it is blinking, an

M-NET communication

error is occured.

(The number of

blinks indicates the

details of the error)

It will be lit steadily

when there is no

(registered) connection

to another M-NET

device.

M-NET transmission

cable (Shielded)

(TB5 S)

For external

device connections

(TM2)

M-NET transmission cable

(PZ-52SF-E, M-NET

controller, power supply

unit, and City Multi

indoor unit)

(TB5 A,B)

Damper motor

position detection

(CN6)

During Lossnay

ventilation: 12 V DC

During Bypass

ventilation: 0 V

SA fan drive

(CN10)

Extra

High High Low

Common for EA

fan drive

Common for SA

fan drive

Power supply

230 V AC

─9 ─

Basic System

Basic

System

Lossnay

M-NET

Remote

controller

Mr. Slim

indoor unit

A,K

Mr. Slim

Lossnay

interlocked

signal

Mr. Slim-Lossnay

connection cable

(Included parts with

Lossnay)

A-control or

K-control remote

controller

• Lossnay can be started/

stopped by an A-control

remote controller or a

K-control remote controller.

•

Lossnay High or Low fan

speed can be selected from

the A-control remote controller.

• Lossnay stand-alone opera-

tion is permitted from the

A-control remote controller.

* Neither PZ-60DR-E nor

PZ-41SLB-E can be used.

Level sig-

nal output

device

(other

manu-

facturer's

PAC etc.)

or pulse

signal out-

put device

(building

control

system

etc.)

Systems

inter-

locked

with

external

devices

(air

condi-

tioning

units)

6. Fundamentals of operation

Description of the circuit operation

(1)System Conﬁguration

Lossnay operates through the following system.

System

Classification

Details

1 Lossnay

unit

1 Remote

controller

Two

remote

control-

lers sys-

tem

1 Lossnay

unit

2 Remote

controllers

Multiple

units

system

Multiple

Lossnay

units

System Diagram

Remote controller

: PZ-60DR-E or PZ-41SLB-E

Transmission cable terminal

blocks between Lossnay unit

M-NET : M-NET transmission cable

terminal block

R : Remote controller

(

PZ-60DR-E or PZ-41SLB-E)

• One remote controller oper-

ates one Lossnay unit.

• Two remote controllers oper-

ate one Lossnay unit. (Last

touch priority operation)

PZ-60DR-E and PZ-41SLB-E

cannot be used together.

Lossnay

remote

controller

(PZ-60DR-E or

PZ-41SLB-E)

Lossnay

remote

controller

(PZ-60DR-E or

PZ-41SLB-E)

• A maximum of 15 Lossnay

units can be operated by

a single remote controller.

(Group operation)

• All units will operate in the

same mode.

Lossnay

remote

controller

(PZ-60DR-E or

PZ-41SLB-E)

Features Required

Parts

Lossnay

M-NET Remote

controller Transmission cable

between the remote

controller and Lossnay

Lossnay

M-NET Remote

controller

Lossnay

M-NET

Remote

controller

Lossnay

M-NET

Remote

controller

Lossnay

M-NET

Remote

controller

Remote controller (PZ-60DR-E or PZ-41SLB-E)

• Lossnay is started/stopped

by a signal (*1)from an

external device.

• Having a remote control per-

mits last touch priority opera-

tion with the external device

and the remote controller.

• A maximum of 15 Lossnay

units can be operated.

*1: An uncharged a-contact,

12 V DC or 24 V DC level

signal, or an uncharged

a-contact, 12 V DC or 24 V

DC pulse signal.

Lossnay

M-NET

Remote

controller

Level (pulse) signal

Output device

External device

(Other manufacturer's

PAC etc.)

Remote controller (PZ-60DR-E or PZ-41SLB-E)

(Operation without a remote controller is also

possible.)

Mr. Slim

(A-control

K-control

remote

control-

ler)

─10 ─

M- NET Control

Lossnay

M-NET

Remote

controller

M-NET

transmission

cable

City Multi

Indoor unit

Transmission

cable between

the remote

controller and

Lossnay

Lossnay remote controller

(PZ-60DR-E)

(Operation without a remote

controller is also possible.)

M-NET

transmission

cable

Indoor unit

Remote controller for M-NET

(PZ-52SF-E)

(Operation without a remote

controller is also possible.)

City Multi

indoor unit

Lossnay

M-NET

Remote

controller

System

Classification

Details

Systems

inter-

locked

with

external

devices

(air

condi-

tioning

units)

Mitsubishi

City Multi

air condi-

tioner

(MA

remote

control-

ler or ME

remote

control-

ler)

Central

control

sys-

tem for

Lossnay

only

Central/

independ-

ent control

of multiple

Lossnay

units

System Diagram

Remote controller

Terminal block for trans-

mission cable between

PZ-60DR-E and Lossnay unit

M-NET : M-NET transmission cable

terminal block

R1 : PZ-60DR-E

R2 : PZ-52SF-E

When using PZ-60DR-E

* Refer to the technical documentation for details about M-NET system design.

When using PZ-52SF-E

When using PZ-60DR-E

• Can be interlocked with a

maximum of 16 air condition-

ing units.

• Lossnay can be started/

stopped, and switched

between High and Low fan

speed by an air conditioner

remote controller.

• Lossnay stand-alone opera-

tion is permitted from an air

conditioner remote control-

ler.

• Having PZ-60DR-E or

PZ-52SF-E, last touch priori-

ty operation is permitted with

the air conditioner remote

controller and the Lossnay

remote controller.

*1: PZ-41SLB-E cannot be

used in this system.

*2:

PZ-60DR-E and PZ-52SF-E

cannot be used together.

• Lossnay batch/independent

(group)control permitted by

system controller.

• Operation of Lossnay within

a group is permitted by a

Lossnay remote controller.

(PZ-60DR-E or PZ-52SF-E)

• One group of a maximum

of 16 Lossnay units can be

operated.

• Number of Lossnay control

units

Centralized controller

(AG-150A): 50 units/50

groups

N/OFF remote controller

(PAC-YT40ANRA):

50 units/16 groups

System remote controller

(PAC-SF44SRA):

50 units/50 groups

*1: The remote controller

(PZ-41SLB-E)cannot be

used in this system.

*2:

PZ-60DR-E and PZ-52SF-E

cannot be used together.

• Lossnay

remote

controller

(PZ-60DR-E

PZ-52SF-E)

• Centralized

controllers

(G-50A),

(PAC-

SF44SRA),

(PAC-

YT40ANRA),

and

(AG-150A)

• Power sup-

ply units

(PAC-

SC50KUA),

(PAC-

SF46EPA),

and (PAC-

SC51KUA)

Features Required

Parts

Lossnay

SC Power supply

R1 R1

Remote controller (PZ-60DR-E)

System controller

Power supply unit

Group 1 Group 2

Group 3 Group 4

LossnayLossnay Lossnay

Lossnay Lossnay Lossnay Lossnay

When using PZ-52SF-E

Remote controller for M-NET

(PZ-52SF-E)

Group 1 Group 2

Group 3 Group 4

Power supply

Lossnay

Lossnay Lossnay Lossnay

Lossnay

M-NET controller Power supply unit

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