Mitsubishi LGH-15RX5, LGH-25RX5, LGH-35RX5, LGH-50RX5, LGH-65RX5 Service Manual

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

January 2009 No. U155

LOSSNAY

HAND BOOK

(For HONG KONG)

Model: LGH-15RX

5-E

LGH-25RX

5-E

LGH-35RX5-E
LGH-50RX

5-E

LGH-65RX5-E
LGH-80RX

5-E

LGH-100RX5-E

Nameplate

LGH-150RX5-E
LGH-200RX

5-E

Nameplate

Model: PZ-60DR-E

Model: PZ-25RF

8-E PZ-35RF8-E

PZ-50RF

8-E PZ-65RF8-E

PZ-80RF

8-E PZ-100RF8-E

FOR DEALERS

Remote controller (Parts number is not set.)

Filter (Parts number is not set.)

Contents

1. Safety precautions....................................................................3

2. Specifications ....................................................................... 4-8

3. Outside dimensions............................................................ 9-18

4. Electrical wiring diagrams ................................................ 19-20

5. Basic circuit diagram ............................................................. 21

6. Fundamentals of operation .............................................. 22-44

7. Troubleshooting ............................................................... 45-65

8. Disassembly and assembly.............................................. 66-68

9. Parts catalog .................................................................. 69-123

LGH-15RX

5-E ............................................................... 70-75

LGH-25RX

5-E ............................................................... 76-81

LGH-35RX

5-E ............................................................... 82-87

LGH-50RX

5-E ............................................................... 88-93

LGH-65RX

5-E ............................................................... 94-99

LGH-80RX

5-E ........................................................... 100-105

LGH-100RX

5-E .......................................................... 106-111

LGH-150RX

5-E .......................................................... 112-117

LGH-200RX5-E.......................................................... 118-123

♦♦

Turn off the power supply

Be sure to shut off the power supply isolator
before disassembling the unit for repair.

(Failure to heed this warning may result in elec-

tric shock.)

♦♦

Use proper parts and tools

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

(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 installation may

result in electric shock and/or fire.)

♦♦

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 elec-

tric shock and/or fire.)

♦♦

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 resistance
of at least 10MΩ is obtained.

(If an insulation problem exists, it may result in

electric shock.)

♦♦

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 elec-

tric 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.)

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

♦♦

Caution for bodily injury

Do not conduct any 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 conducting work.

(Failure to heed this caution may result in injury
to your hands from sharp metal or other edges.)

•Inspect the grounding, and repair it if incomplete. Make sure that a power supply isolator is being installed, if
not, install one.

GMake sure that the product operates correctly upon completion of repair. Clean the product as well as the sur-

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

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

Request during repair

—3—

1. Safety precautions

GPlease be sure to read the following safety precautions thoroughly before commencing with the maintenance

work, and conduct the inspection and repair of the product in a safe manner.

GThe types and levels of danger that may arise if the product is handled incorrectly are described by using the

warning symbols shown below.

Warning

Caution for

electric shock

Prohibited

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.

Caution

Prohibited

Be sure to follow

this instruction.

—4—

2. Specifications

—5—

—6—

—7—

—8—

Unit (mm)

LGH-15RX5-E

3. Outside dimensions

—9—

Unit (mm)

LGH-25RX5-E

—10—

Unit (mm)

LGH-35RX5-E

—11—

—12—

Unit (mm)

LGH-50RX5-E

Unit (mm)

LGH-65RX5-E

—13—

—14—

Unit (mm)

LGH-80RX5-E

Unit (mm)

LGH-100RX5-E

—15—

—16—

Unit (mm)

LGH-150RX5-E

Unit (mm)

LGH-200RX5-E

—17—

—18—

Unit (mm)

PZ-60DR-E

Unit (mm)

PZ-25RF8-E, PZ-35RF8-E, PZ-50RF8-E, PZ-65RF8-E, PZ-80RF8-E, PZ-100RF8-E

—19—

POWER SUPPLY

220-240V 50Hz

2

1

TB5 (M-NET)

(*1)
Optional Remote controller

AB

S

(PZ-60DR-E)

*When the optional Remote Controller PZ-60DR-E

cable
(non-polar)

24VDC 2A 5VDC 100mA

MAX 240VAC 2A MIN 220VAC 100mA

L

L

N

N

M

1

M

2

PE

monitor output

Operation or Delay1

LS

TR

TM1

CN1

CN2

CN7

BLUE

BROWN

YELLOW

RED

BROWN

RED

BLUE

BLUE

EXHAUST
FAN MOTOR

SUPPLY
FAN MOTOR

WHITE

ORANGE

YELLOW

GREY

BLACK

C

C

SA2

SA1

SW2

SW5

SW1

CN6

ORANGE

ORANGE

TH1 (OA)

TH2 (RA)

ORANGE
ORANGE
ORANGE
ORANGE

TM2

BROWN

PZ­60DR-E

Transmission

TB5

TM3

TAB3

TAB5

CN10

CN9

TAB1

TAB2

Isolator

X12 X11

CN32

X10

S

BA

9

2

1

CN5

321678

10

CN16

TM4

RED

GREEN/YELLOW

BROWN

output 7 , 8

Malfunction monitor

monitor output 6 , 7

By-pass or Delay2

MAX 240VAC 1A

12V or 24V DC

Mr.Slim

(non-polar)

2nd remote controller (Max. two remote controllers installable)
2nd LOSSNAY unit (Up to max 15 units)

MELANS

cable

transmission

M-NET

Shield Wire

24VDC 1A

MAX 240VAC 1A

5VDC

100mA

MIN 220VAC 100mA

Unchanged a-contact

13

External control input

TM4

(Max. two remote controllers

2nd remote controller

Shield Wire

cable

transmission

M-NET

2nd or later main units

installable)

(*1)

PZ-41SLB-E and PZ-52SF-E cannot
be used when using PZ-60DR-E.

is used as the M-NET System, connect it to
of TM4 terminal block, and connect M-NET
transmission wire to , on TB5 terminal
block.

1

2

AB

GM

CN16
(Unchanged a-contact)

HI

LO

EXTRA-LO

BY-PASS

M

CC

(*2) LGH-100RX5 has two
capacitors per motor
as following drawing.

(*2)

(*2)

(*1)

With this product, the wiring installation method will
vary according to the design of the system.
Perform electrical installation to meet local electrical regulations.
.Always use double insulated PVC cable for the transmission cables.
.Wiring work must be performed by qualified professionals.
.All supply circuits must be disconnected before obtaining access to the terminal devices.

NOTE 1.TM1, TM2, TM3, TM4, TB5 shown
in dotted lines are field work.

2.Isolator should be provided by the customer.

3.Be sure to connect the grounding wire.

*Attention

BROWN

RED
ORANGE
YELLOW
GREEN

4. Electrical wiring diagrams

LGH-15RX5-E, LGH-25RX5-E, LGH-35RX5-E, LGH-50RX5-E, LGH-65RX5-E, LGH-80RX5-E, LGH-100RX5-E

Definition of Symbols

M1: Motor for exhaust fan CN1: Connector (Transformer primary

)

M2: Motor for supply fan CN2: Connector (Transformer secondary

)

C: Capacitor CN5: Connector (Thermistor

)

GM: Motor for By-pass operation CN6: Connector (Microswitch

)

LS: Microswitch CN7: Connector (Motor for By-pass operation

)
TH1: Thermistor for outside air TAB3: Tab connector(Fan motor)
TH2: Thermistor for return air TAB5: Tab connector (Fan motor

)

SW1: Switch (Main/Sub change

)

CN9: Connector (Fan motor

)

SW2, 5: Switch (Function selection

)

CN10: Connector (Fan motor

)

TM1: Terminal block (Power supply

)

CN16: Connector (High/Low/Extra Low/By-pass switch

)

TM2: Terminal block

(External control input)

CN32: Connector (Remote control selection

)

TM3: Terminal block (Monitor output

)

SA1: Address setting rotary switch (10 digit

)

TM4 :

Terminal block (Transmission cable and monitor output

)

SA2: Address setting rotary switch (1 digit

)

TB5 : Terminal block (M-NET Transmission cable

)

SYMBOL : Indicates terminal block.

TAB1,TAB2

: Connector (Power supply)

: Connector.

TR: Control circuit transformer

: Board insertion connector or fastening

X10,X11,X12

: Relay contact

connector of control board.

*Specifications may be subject to change without notice.

—20—

BLACK

BLACK

LS

LS

BLACK

BLACK

RED

WHITE

TR3

RED

WHITE

TR2

x201

x202

x203

x101

x102

x103

M

M

M

1

2

1

M

2

EXHAUST

SUPPLY

EXHAUST

FAN MOTOR

FAN MOTOR

FAN MOTOR

SUPPLY
FAN MOTOR

C

C

C

C

cable

transmission

M-NET

MELANS

(non-polar)

Mr.Slim

output 7 , 8

Malfunction monitor

monitor output 6 , 7

By-pass or Delay2

Shield Wire

12V or 24V DC

BROWN
RED

TM4

CN16

10

876123

CN5

1

2

9

AB

S

X10

CN32

X11X12

Isolator

TAB2

TAB1

CN9

CN10

TAB5

TAB3

TM3 TB5

Transmission
cable

60DR-E

PZ-

BROWN

TM2

ORANGE

ORANGE

ORANGE

ORANGE

TH2 (RA)

TH1 (OA)

SW1

SW5

SW2

SA1

SA2

BLACK
GREY
YELLOW

ORANGE

WHITE

BLUE

BLUE

RED

BROWN

BROWN

BLUE

CN7

CN2

CN1

TM1

monitor output

Operation or Delay1

PE

N

N

L

L

24VDC

2A 5VDC 100mA

MAX 240VAC 2A MIN 220VAC 100mA

(non-polar)

TR1

BROWN
BLACK

GREY
YELLOW

YELLOW

GREY

BLACK

BROWN

WHITE

BLUE

ORANGE

RED

RED
ORANGE
BLUE
WHITE

31

Unchanged a-contact

External control input

A

2nd or later main units

cable

transmission

M-NET

S

B

TB5 (M-NET)

Shield Wire

TM4

(PZ-60DR-E)

2nd remote controller

installable)

(*1)
Optional Remote controller

(Max. two remote controllers

PZ-41SLB-E and PZ-52SF-E cannot

be used when using PZ-60DR-E.

(*1)

5VDC 100mA

MIN 220VAC 100mA

24VDC

1A

MAX 240VAC 1A

transmission wire to , on TB5 terminal

B

A

2

1

of TM4 terminal block, and connect M-NET

is used as the M-NET System, connect it to

block.

*When the optional Remote Controller PZ-60DR-E

GM

MG

GM

MG

x103

x102

x101

x203

x202

x201

2

1

GREEN/YELLOW

POWER SUPPLY
220-240V 50Hz

CN16
(Unchanged a-contact)

RED

BROWN

YELLOW

ORANGE

GREEN

HI

LO

BY-PASS

With this product, the wiring installation method will
vary according to the design of the system.
Perform electrical installation to meet local electrical regulations.
.Always use double insulated PVC cable for the transmission cables.
.Wiring work must be performed by qualified professionals.
.All supply circuits must be disconnected before obtaining access to the terminal devices.

NOTE 1.TM1, TM2, TM3, TM4, TB5 shown
in dotted lines are field work.

2.Isolator should be provided by the customer.

3.Be sure to connect the grounding wire.

*Attention

M

CC

(*2) LGH-200RX5 has two
capacitors per motor
as following drawing.

(*2)

(*2)

(*2)

(*2)

2nd remote controller (Max. two remote controllers installable)
2nd LOSSNAY unit (Up to max 15 units)

(*1)

LGH-150RX5-E, LGH-200RX5-E

Definition of Symbols

M1: Motor for exhaust fan

X10,X11,X12

: Relay contact

M2: Motor for supply fan

X101,X102,X103:

Relay Supply fan speed control

C: Capacitor

X201,X202,X203:

Relay Exhaust fan speed control
GM: Motor for By-pass operation CN1: Connector (Transformer primary)
LS: Microswitch CN2: Connector (Transformer secondary)
TH1: Thermistor for outside air CN5: Connector (Thermistor)
TH2: Thermistor for return air CN6: Connector(Microswitch)
SW1: Switch (Main/Sub change) CN7: Connector (Motor for By-pass operation)
SW2, 5: Switch (Function selection) CN9: Connector (Fan motor)
TM1: Terminal block (Power supply) TAB3: Tab connector (Fan motor)
TM2: Terminal block(External control input) TAB5: Tab connector (Fan motor)
TM3: Terminal block (Monitor output) CN9: Connector (Fan motor)
TM4: Terminal block CN10: Connector (Fan motor)

(Transmission cable and monitor output) CN16: Connector(High/Low/By-pass switch)
TB5: Terminal block (M-NET Transmission cable) CN32: Connector (Remote control selection)
TAB1,TAB2: Connector (Power supply) SA1: Address setting rotary switch (10 digit)
TR1

: Control circuit transformer SA2: Address setting rotary switch (1 digit)

TR2,TR3: By-pass operation transformer SYMBOL : Indicates terminal block.

Board insertion connector or fastening
connector of control board.

*Specifications may be subject to change without notice.

5. Basic circuit diagram

G Circuit board diagram and check points

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

During
operation: 0

Ω

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 1, 2)
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 : 0

Ω

Normal: ∞Ω
(TM3 7,8)

When SW5-6 is OFF
During normal

ventilation: 0

Ω

During heat exchange
ventilation: ∞

Ω

When SW5-6 is ON
During operation

and when the outdoor air
temperature is ≤ -5ºC to
15ºC: 0

Ω

While stopped,
or when the outdoor air
temperature is ≥ 15ºC: ∞

Ω

(TM3 6,7)

Thermistor
(RA) (OA)
(CN5)

LED 2 (Red)
When blinking, an M­NET communication
error is generated.
(The number of

blinks indicates the

details of the error)

This will be lit
steadily when there
is no (registered)
connection to another
M-NET device.

*1: Damper position detection input is only for the LGH-15 to 100 types, and not for the LGH-150 and 200 types.

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) *1

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
220 to 240 V AC

—21—

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 K­control remote
controller

• Lossnay can be
started/stopped by an A-con­trol remote controller or a K­control remote controller.

•

Lossnay High or Low fan
speed can be selected from
the A-control remote controller.

• Lossnay stand-alone opera­tion is permitted from the A­control remote controller.

* Neither PZ-60DR-E nor PZ-

41SLB-E can be used.

Level sig­nal output
device
(other

manufac­turer's

PAC, etc.)
or pulse
signal out­put device
(building

control

system,

etc.)

Systems
interlock
ed with
external
device
(air con-

dition­ing
units)

—

—22—

—

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
con­trollers
system

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 oper­ates one Lossnay unit.

• Two remote controllers oper­ate 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 PZ­41SLB-E)

Lossnay
remote
controller
(PZ-60DR-

E or PZ­41SLB-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 PZ­41SLB-E)

Features

Prepared

Parts

R

Lossnay

M-NET

Remote
controller

Transmission cable
between the remote
controller and Lossnay

R R

Lossnay

M-NET

Remote
controller

R

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 per­mits last touch priority opera­tion 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 a­contact, 12 V DC or 24 V
DC pulse signal.

R

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

or K-con­trol
remote
con­troller)

—23—

R1

Lossnay

M-NET

Remote
controller

M-NET
transmission
cable

City Multi

Indoor unit

MA

Transmission
cable between
the remote
controller and
Lossnay

Lossnay remote controller
(PZ-60DR-E)
(Operation without a remote
controller is also possible.)

R2

M-NET
transmission
cable

Indoor unit

MA

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
interlock
ed with
external
device
(air con-

dition­ing
units)

Mitsubishi
City Multi
air condi­tioner
(MA

remote
controller
or ME
remote
controller)

Central
control
system
for
Lossnay
only

Central/in
depen­dent con­trol of
multiple
Lossnay
units

System Diagram

Remote controller: Terminal block for trans-

mission cable between PZ­60DR-E and Lossnay

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 condition­ing units.

• Lossnay can be
started/stopped, and
switched between High and
Low fan speed by an air con­ditioner remote controller.

• Lossnay stand-alone opera­tion is permitted from an air
conditioner remote con­troller.

• Having PZ-60DR-E or PZ­52SF-E, last touch priority
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 (AG­150A) : 50 units/50 groups
ON/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-60DR­E or PZ­52SF-E)

•

Centralized
controllers
(G-50A),
(PAC­SF44SRA),
(PAC­YT40ANR
A), and
(AG-150A)

• Power sup­ply units
(P AC­SC50KUA),
(PAC­SF46EPA),
and (PAC­SC51KUA)

Features

Prepared

Parts

Lossnay

SC Power supply

R1 R1

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

SC

R2
Remote controller for M-NET

(PZ-52SF-E)

Group 1

Group 2

Group 3

Group 4

R2

R2

R2

Power supply

Lossnay

Lossnay Lossnay Lossnay

Lossnay Lossnay Lossnay

Lossnay

M-NET controller

Power supply unit

M- NET Control

For Lossnay independent control

—24—

Schedule timer PAC-YT34STA

PAC-SC30GRAGroup remote controller
PAC-YT40ANRAON/OFF remote controller
PAC-SF44SRASystem remote controller
G-50A, AG-150ACentralized controller

● Remote controller list

1 Remote controllers

2 System controller

Rough Classification Fine Classification Product

Lossnay remote controller

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

Lossnay remote controller PZ-52SF-E

M-NET

For City Multi air con­ditioner

For Mr. Slim

MA remote con­troller

M-NET remote
controller

MA remote controller PAR-20/21MAA
Wireless remote controller PAR-FA(FL)31MA
Compact remote controller PAC-YT51CRA

Compact remote controller PAC-SE51CRA

ME remote controller PAR-F27MEA

PAR-21MAAA-control remote controller

K-control remote controller

For Lossnay M-NET control

Model

Classification

System controller

Product Model

(2) Start-up process

When the power is turned on, operation will not be performed for up to 45 seconds to allow Lossnay to perform
information settings required for control purposes.
The start-up process can be confirmed by the blinking of LED1 in the Lossnay circuit board (1 second on/1 sec­ond off) or the remote controller LED when using the remote controller.

—25—

Lossnay remote
controller
PZ-41SLB-E

The remote controller “Fan Speed Adjustment” button permits High
(Extra High)/Low fan speed selection.
(Extra Low fan speed selection is not available from the remote con-

troller.)

Stand-alone/multi­ple Lossnay and
Lossnay remote
controller: PZ­41SLB-E

System Configuration

(3) Fan control

1Fan speed control for each system

The control indicated below can be performed according to the system that is paired.

●Up to two of the Lossnay remote controllers PZ-60DR-E, PZ-41SLB-E, and PZ-52SF-E can be
used in the same group, but they cannot be used together with a different remote controller .
When using two remote controllers, be sure to use the same model of remote controller.

●PZ-41SLB-E cannot be used in M-NET control. When controlling Lossnay in M-NET control,
use PZ-60DR-E or PZ-52SF-E.

●When using PZ-60DR-E and mixing the LGH-15 to 100 types together with the LGH-150
and 200 types in a group,set the LGH-15 to 100 types as “Main”.

Caution

Lossnay remote
controller
PZ-60DR-E

The remote controller “Fan Speed Adjustment” button permits High
(Extra High)/Low fan speed selection, and the “Extra Low fan
SPEED” button permits an extra low fan speed selection.
(The LGH-150 and 200 types do not provide Extra Low fan speed

operation.)

Stand-alone/multi­ple Lossnay and
Lossnay remote
controller: PZ­60DR-E

A-control remote
controller
K-control remote
controller
(Remote con-

troller connec­tion prohibited
with Lossnay )

The A-control remote controller “Ventilation” button permits High
(Extra High)/Low fan speed selection.
(High (Extra High)/Low fan speed selection is not available from the

K-control remote controller.)

(Extra Low fan speed selection is not available from the A-control

and K-control remote controllers.)

System interlocked
with Mr. Slim

None Fixed to High (Extra High) fan speed.Level signal/pulse
signal
System interlocked
with the output
device

Lossnay remote

controller

PZ-60DR-E

The remote controller “Fan Speed Adjustment” button permits High
(Extra High)/Low fan speed selection, and the “Extra Low fan speed”
button permits an Extra Low fan speed selection.
(The LGH-150 and 200 types do not provide Extra Low fan speed

operation.)

Stand-alone/multi­ple Lossnay and
Lossnay remote
controller: PZ­60DR-E

Lossnay remote

controller

PZ-52SF-E

The remote controller “Fan Speed Adjustment button” permits High
(Extra High)/Low fan speed selection.
(Extra Low fan speed selection is not available from the Lossnay

remote controller.)

Stand-alone/multi­ple Lossnay and
Lossnay remote
controller: PZ­52SF-E

M-NET controller The system remote controller, or centralized control remote con-

troller “Fan Speed” button or “Ventilation setting” button permits High
(Extra High)/Low fan speed selection.
(The ON/OFF remote controller and the schedule timer do not permit

fan speed selection.)

(Extra Low fan speed selection is not available from the system

remote controller or the centralized control remote controller.)

M-NET
Lossnay central
control system

ME remote con-

troller

PAR-F27MEA,

MA remote con-

troller

PAR-20/21MAA

The remote controller “Ventilation” button permits High (Extra
High)/Low fan speed selection.
(Extra Low fan speed selection is not available from the ME remote

controller and MA remote controller.)

M-NET
System interlocked
with City Multi
indoor units

Remote controllers
System controllers

Fan speed

Basic SystemM- NET Control

SW2-3: ON
(Refer to page

38)

—26—

When PZ-60DR-E will not be used in a system of
multiple Lossnay units, set the function selection
switches on the Lossnay circuit board for each
unit.

The fan speed display of the remote controller,
and the system controller will be the same for
either Extra High or High.

2Fan speed control by function setting

The following fan speed control can be set with PZ-60DR-E or the function selection switch (SW2) on the
Lossnay circuit board.

Function

PZ-60DR-E

(Remote controller

function selection)

PZ-60DR-E Not Used

(Function selec-

tion switch)

Supply fan
speed setting

Extra High SH: L

High H: L

Exhaust

fan

speed

setting
Extra High SH: L
High H: L

(Refer to page

41)

Air supply SW2-9

: ON

Exhaust SW2-10

: O

N

(Refer to page

38)

Supply fan
speed setting

Multiple ventila­tion : L

Exhaust fan
speed setting

Multiple ventila­tion : L

(Refer to page

41)

Air supply SW2-4

: ON

Exhaust SW2-5

: ON

(Refer to page

38)

This switches the settable fan speed from the remote controller
and the system controller. Set this when there is a need for
large air volume, or when there is a long duct line.
When set to High fan speed, High/Low fan speed can be set,
and when set to Extra High fan speed, Extra High/Low fan
speed can be set.

Extra High
/High
Fan speed
selection

This switches the settable fan speed from the remote controller
and the system controller to a fixed Low fan speed. The sup­ply/exhaust balance is adjusted to suit the usage environment
or the place of installation.

Multi venti­lation
mode

Power supply/
exhaust when
operation starts :
ON

(Refer to page

41)

During the first 30 minutes of operation, operation will be at
High (Extra High) fan speed. This is used when rapid ventila­tion is desired at the time of starting operation.
After 30 minutes have elapsed since starting operation, or
when the fan speed set from the remote controller or the sys­tem controller has been changed to something other than High
fan speed, power ventilation will be cancelled and the system
will follow the fan speed set by the remote controller or system
controller.

Power
supply/
exhaust
mode
(When

operation
starts )

Details

Setting Method

Display

Multiple

units

When PZ-60DR-E will not be used in a system of
multiple Lossnay units, set the function selection
switches on the Lossnay circuit board for each
unit.

When both supply and exhaust are set to the multi
ventilation mode, due to operation restrictions PZ­60DR-E cannot be switched to a setting other
than Low/Extra Low fan speed. Other remote con­trollers and system controllers can change the fan
speed display; however, the fan will remain fixed
at Low fan speed.

Operation

Multiple

units

When PZ-60DR-E will not be used in a system of
multiple Lossnay units, set the function selection
switches on the Lossnay circuit board for each
unit.

During power ventilation, PZ-60DR-E will display
“POWER VENT START”. Other remote controllers
and system controllers will display the set fan
speed, even during power supply exhaust opera­tion.

Display
Multiple

units

—27—

3 Restrictions when switching fan speed

The following restrictions exist when the fan speed is switched.

● When switching between High (Extra High) and Low fan speed, the fan will be stopped for approximately 5
seconds.

● When switching between settings other than Extra Low fan speed and Extra Low fan speed, the fan will be
stopped for approximately 10 seconds.

4 Air supply fan forced stop

Under the following conditions, Lossnay will force stop of the air supply fan. However, when the following con­ditions are met while operating at Extra Low fan speed, the air supply fan will stop, and the exhaust fan will
operate at Low fan speed.
(When operating at Extra Low fan speed, the air supply fan and the exhaust fan cannot be stopped separate-

ly.)

● When Mr. Slim is in defrost or stopped due to a fault, in an interlocked system with Mr. Slim that has a duct
connection with Lossnay.

(For cold inrush prevention, or falling dust prevention)

● When the indoor unit is in defrost, in an interlocked system with a City Multi indoor unit that has a duct con­nection with Lossnay.

(For cold inrush prevention)

●

When the outside temperature is -10ºC or lower, the air supply fan is stopped periodically for approximately
10 minutes to 55 minutes.

(

To prevent freezing of the Lossnay core)

(4) Ventilation mode control

Lossnay (heat exchange) ventilation or bypass (normal) ventilation is achieved by switching the air duct inside
the Lossnay unit with a damper.
1 Ventilation mode

There are 3 control modes.

● Lossnay ventilation (heat exchange ventilation) mode: Heat exchange ventilation is performed regularly via

the Lossnay core.

● Bypass ventilation (normal ventilation) mode : Ventilation is performed regularly without going

through the Lossnay core.

● Automatic ventilation mode : A temperature sensor built into the unit provides

automatic ventilation to a suitable ventilation mode.
In addition, energy saving ventilation is provided by
interlocking with a Mr. Slim or City Multi indoor unit.

TM4 9, 0 output setting

“Operation monitor with delay
function 1”: SW2-8: ON

TM3 6, 7 output setting

“Operation monitor with delay
function 2”: SW5-6: ON
(Refer to page 38)

* This function cannot be set from

PZ-60DR-E.

When TM4 9, 0 output settings, and TM3 6, 7 output set-
tings are set to operation monitor with delay function 1 or 2, the
fan will stop after 3 minutes have elapsed from the OFF opera­tion when output ON (Closed) is switched to output OFF
(Open) by the Lossnay stop instruction.

Fan motor
delay stop
(Operation

monitor
with delay
function)
*Note 1

*Note 1: The fan will continue to operate even after operation is stopped with the remote controller, etc.

Function

PZ-60DR-E

(Remote controller

function selection)

PZ-60DR-E Not Used

(Function selec-

tion switch)

Details

Setting Method

Stand-alone/multi­ple Lossnay and
Lossnay remote
controller: PZ­41SLB-E

Basic System

M- NET Control

Fixed to automatic ventilation.

Fixed to automatic ventilation.

—28—

Lossnay remote controller
PZ-60DR-E

The “Function selector” button of the remote controller
permits ventilation mode switching for automatic ,
Lossnay, and bypass ventilation. Bypass ventilation is
set at the time of night purge operation, and ventilation
mode switching is not possible.

Stand-alone/multi­ple Lossnay and
Lossnay remote
controller: PZ­60DR-E

Lossnay remote controller
PZ-52SF-E

The “Function selector” button of the remote controller
permits ventilation mode switching for automatic ,
Lossnay, and bypass ventilation.

Stand-alone/multi­ple Lossnay and
Lossnay remote
controller: PZ­52SF-E

M-NET controller The “Operation mode” button of the system remote con-

troller and the centralized controller permits ventilation
mode switching for automatic , Lossnay, and bypass
ventilation.
(The schedule timer, ON/OFF remote controller, and the

group remote controller do not permit ventilation mode
selection.)

M-NET
Lossnay central
control system

ME remote controller
PAR-F27MEA,
MA remote controller
PAR-20/21MAA

M-NET
System interlocked
with City Multi
indoor units

●Up to two of the Lossnay remote controllers PZ-60DR-E, PZ-41SLB-E, and PZ-52SF-E can
be used in the same group, but they cannot be used together with a different remote con­troller. When using two remote controllers, be sure to use the same model of remote con­troller.

●PZ-41SLB-E cannot be used in M-NET control. When controlling Lossnay in M-NET control,
use PZ-60DR-E or PZ-52SF-E.

Caution

System

Lossnay remote controller
PZ-60DR-E

The “Function selector” button of the remote controller
permits ventilation mode switching for automatic,
Lossnay, and bypass ventilation. Bypass ventilation is
set at the time of night purge operation, and ventilation
mode switching is not possible.

Stand-alone/multi­ple Lossnay and
Lossnay remote
controller: PZ­60DR-E

Lossnay remote controller
PZ-41SLB-E

The “Function selector” button of the remote controller
permits ventilation mode switching for automatic,
Lossnay, and bypass ventilation.

A-control remote controller
K-control remote controller
(Remote controller connection

prohibited with Lossnay )

Fixed to automatic ventilation.System interlocked

with Mr. Slim

NoneLevel signal/pulse
signal output
device and external
device only

Remote controllers

System controllers

Ventilation mode

2 Damper control for each system

The control indicated below can be performed according to the system that is paired

—29—

3 Bypass ventilation prohibited

When the conditions described below are applicable, the ventilation mode will be fixed at Lossnay ventilation.
When bypass ventilation has been set from the remote controller or the system controller, damper operation
will be set to Lossnay ventilation, even though bypass ventilation is displayed on the ventilation mode display.

● When the outdoor temperature is 8ºC or lower. (Product condensation prevention)
When bypass ventilation prohibition has been set under this condition, the prohibition will be cancelled
when the outdoor temperature goes from a temperature of less than 10 ºC to one higher than 10ºC.

● When there is an outdoor temperature (Outdoor Air) thermistor fault.

●

When, in the automatic ventilation mode, there is an outdoor temperature (Outdoor Air) or indoor tempera­ture (Return Air) thermistor fault.

●

When Lossnay is set to the automatic ventilation mode and interlocked with Mr.Slim or City Multi indoor units
set to the fan operation mode.

4 Damper operation

The damper provides control with a 30 second period. Accordingly, a delay of 30 seconds maximum may be
generated from ventilation mode switching to damper operation.

5 Automatic ventilation algorithm temperature map

Ventilation mode switching of Lossnay ventilation/Bypass ventilation in the automatic ventilation mode is in
accordance with the following map.

a. Systems interlocked with Mr. Slim and City Multi indoor units

The map will differ depending on the operation mode that has been set with the A-control remote controller
or the K-control remote controller for Mr. Slim, or the MA remote controller or the ME remote controller for
City Multi indoor units. There will be switching to the ventilation mode in conjunction with the set tempera­ture of the air conditioner remote controller. Note that the “b” map will be followed while Mr. Slim and City
Multi indoor units are stopped.

Cooling mode (Winter)

40

Lossnay

Ventilation

35

30

25

20

15

10

Outdoor temperature ºC

5

0

Remote controller

Set temperature

Bypass ventilation
Prohibition temperature 8ºC

0 5 10 15 20 25 30 35 40

Indoor temperature ºC

Lossnay ventilation area

Bypass ventilation area
Undetermined area

When operation starts under this condition, Lossnay ventilation will be activated.
When this condition is reached after operation starts, the current ventilation mode is maintained.

Undetermined area

Ventilation

Bypass

Heating mode (Summer)

40

35

30

25

20

15

Outdoor temperature ºC

10

Bypass

Ventilation

Undetermined area

Remote controller

Lossnay

5

Ventilation

0

0 5 10 15 20 25 30 35 40

Set temperature

Indoor temperature ºC

Undetermined area

Bypass

Ventilation

4ºC

—30—

Pattern 2. Outdoor cooling priority mode

When the outdoor temperature is lower than the indoor temperature, this mode actively takes in the out­door air for cooling.
When PZ-60DR-E is used, operation will be at the setting of automatic ventilation adjustment pattern “2”
of the remote controller function selection. When PZ-60DR-E is not used, operation will be at the ON set­ting of function selection switch (SW2-7) on the Lossnay circuit board.

b. When there is no interlocking with Mr. Slim and City Multi indoor units

Pattern 1. Normal ventilation mode

When PZ-60DR-E is used, operation will be at the setting of automatic ventilation adjustment pattern “1”
of the remote controller function selection. When PZ-60DR-E is not used, operation will be at the OFF
setting of function selection switch (SW2-7) on the Lossnay circuit board.

When an outdoor temperature of 28ºC has not

40

35

30

25

20

15

10

Outdoor temperature ºC

5

0

been detected within 24 hours

Lossnay

Ventilation

Bypass

Ventilation

Undetermined area
Bypass ventilation
Prohibition temperature 8ºC

24ºC

0 5 10 15 20 25 30 35 40

Indoor temperature ºC

Lossnay ventilation area

Bypass ventilation area
Undetermined area

When operation starts under this condition, Lossnay ventilation will be activated.
When this condition is reached after operation starts, the current ventilation mode is maintained.

When an outdoor temperature of 28ºC has been

40

35

30

25

20

15

10

Outdoor temperature ºC

5

0

0 5 10 15 20 25 30 35 40

detected within 24 hours

Lossnay

Ventilation

Undetermined area

Bypass

Ventilation

Bypass ventilation
Prohibition temperature 8ºC

24ºC

Indoor temperature ºC

When an outdoor temperature of 17ºC has not
been detected within 24 hours

40

35

30

25

20

15

10

Outdoor temperature ºC

Lossnay

Ventilation

Ventilation

Undetermined area

Bypass ventilation

5

Prohibition temperature 8ºC

0

0 5 10 15 20 25 30 35 40

Indoor temperature

19ºC

ºC

Bypass

When an outdoor temperature of 17ºC has been
detected within 24 hours

40

Lossnay

35

Ventilation

30

25

20

15

10

Outdoor temperature ºC

5

0

Undetermined area

Bypass

Ventilation

Bypass ventilation
Prohibition temperature 8ºC

0 5 10 15 20 25 30 35 40

Indoor temperature

19ºC

ºC

Lossnay ventilation area

Bypass ventilation area
Undetermined area

When operation starts under this condition, Lossnay ventilation will be activated.
When this condition is reached after operation starts, the current ventilation mode is maintained.

Type

—31—

Pulse input setting
“oFF”

SW2-2: OFFCharged 12 V DC/24 V DC
Operation signal: 12 V DC/24 V DC
Stop signal : 0 V

Uncharged a-contact
(Current drawn: 10 mA or greater)

Operation signal: Close
Stop signal : Open

Level signal

Pulse input setting
“on”

SW2-2: ONCharged 12 V DC/24 V DC

Uncharged a-contact

Start/stop is inverted with each
pulse

Pulse signal

PZ-60DR-E
(Lossnay remote
controller) can­not be used.

SW2-2: OFF• Connect the signal cable of Mr. Slim to Lossnay, and per-

form the Lossnay interlock settings from the A-control
remote controller or the K-control remote controller.

• The system is started/stopped by interlocking with
Start/Stop of the A-control remote controller or K-control
remote controller.

• The system is started/stopped by interlocking with the venti­lation setting of the A-control remote controller.

• The Mr. Slim operation mode, target temperature, and other
internal information can also be brought in.

Systems
interlocked
with Mr.
Slim

Pulse input setting
“oFF”

SW2-2: OFF• City Multi indoor units and Lossnay are connected by M-
NET, and the Lossnay interlock setting is performed from
the remote controller or system controller.

• The system is started/stopped by interlocking with
Start/Stop of the MA remote controller or ME remote con­troller and the ventilation setting.

• The City Multi indoor unit operation mode, target tempera­ture, and other internal information can also be brought in.

Systems
interlocked
with
Mitsubishi
City Multi
indoor units

(5) Interlocking with external devices

1 Input signal

The system will interlock with the following input signals from external devices and start/stop.

systems having multiple Lossnay units, input the signal to the “Main” Lossnay.

Multiple units

PZ-60DR-E

(Remote controller

function selection)

PZ-60DR-E Not Used

(Function selec-

tion switch)

Signal, and operation

Setting Method

Pulse width 200 ms or greater

6 Ventilation mode change recommendation (RECOMMENDED, VENTILATION MODE) display

When using PZ-60DR-E and the ventilation mode is set to Lossnay ventilation or bypass ventilation, “REC­OMMENDED” and “VENTILATION MODE” may be displayed alternately (for 10 minutes maximum). This
function informs the user of the suitable ventilation mode according to the automatic ventilation algorithm.
When a ventilation mode change recommendation has been displayed, more comfortable ventilation can be
provided by pressing the “Function selector” button of the remote controller and switching to another ventila­tion mode.
(We recommend that “AUTO” be selected for the ventilation mode; however, there is no problem in leaving

the ventilation mode unchanged with “RECOMMENDED” “VENTILATION MODE” displayed.)

Function settings

PZ-52SF-E or remote

controller not used

(Function selec-

tion switch)

SW5-1: ON

—32—

2 Interlock mode

Lossnay can set the following 4 types of interlock modes for the start/stop signal from the external device.

3 Delay operation

This function delays the starting of Lossnay for 30 minutes with respect to the start signal from the external
device (and for 10 to 60 minutes when using PZ-41SLB-E). When using remote controllers other than PZ­41SLB-E, LED1 on the Lossnay circuit board will light during delay operation. Also, when using PZ-60DR-E
and PZ-41SLB-E, there will be a display of the delay time.

*1: Display of LCD when setting is by PZ-60DR-E remote controller

1

(Factory

setting)

SW5-7: OFF
SW5-8: OFF
(Factory setting)

The start/stop condition
will be reversed each
time the pulse signal is
input.

ON/OFF
interlock
(Remote

controller
last touch
operation
permitted)

Interlock

mode

PZ-41SLB-E

(Interlock

mode)

PZ-60DR-E

(Remote controller

function selection)*1

Pulse signal input

Lossnay will start with
the operation signal of
the external device, and
Lossnay will stop with
the stop signal.

Other than pulse signal

input

Interlock mode
setting selection
“onoF”
(Factory setting)

SW5-7: ON
SW5-8: OFF

2Lossnay will start when
the pulse signal is
input.
Stopping is by remote
controller.

ON interlock Lossnay will start with

the start signal of the
external device.
Stopping is by remote
controller.

Interlock mode
setting

“on”

SW5-7: OFF
SW5-8: ON

3Lossnay will stop when
the pulse signal is input.
Starting is by remote
controller.

OFF inter­lock

Lossnay will stop with
the stop signal of the
external device.
Starting is by remote
control.

Interlock mode
setting

“oFF”

SW5-7: ON
SW5-8: ON

4Same as ON/OFF inter­locked.

External
input priority
ON/OFF
interlock

Same as ON/OFF inter­locked.
Note that during opera­tion that started with a
signal from the external
device, stopping by
remote controller will
not be possible.

Interlock mode
setting

“oUT”

Setting Method

PZ-41SLB-E

(Delay starting time)

PZ-60DR-E

(Remote controller func-

tion selection)

PZ-52SF-E or remote

controller not used

(Function selection switch)

Setting Method

Delay operation setting
“oFF”
(Factory setting)

Normal operation 0 minutes

(Factory setting)

SW5-1: OFF
(Factory setting)

Delay operation setting
“on”

Delay operation 10 to 60 minutes (in 10-

minute units)

Note that delay operation will be disabled under the following condition

● When the start signal from the external device is a pulse signal.

● When the system is interlocked with Mr. Slim or City Multi indoor units set to the fan operation mode.

● When the system is restarted within 2 hours of Lossnay stop.

● When the interlock mode is set to “OFF Interlock”.

—33—

Output Function

Output

Terminal

Signal

Form

(6) External input/output terminals on the Lossnay circuit board

Located on the Lossnay circuit board are terminals for the external output of the Lossnay operating condition,
and input terminals for external switching of the Lossnay fan speed and ventilation mode.
1 Output terminals

The function and contact rating of each output terminal are described below.
“Operation monitor” and “Bypass operation monitor” are in common with “Operation monitor with delay func­tion 1” and “Operation monitor with delay function 2”, respectively.
(Switch with the DIP switch on the Lossnay circuit board. Refer to page 38 and 39.)

MinimumMaximum

Contact Rating

240 V AC, 1 A
24 V DC, 1 A

Malfunction moni­tor

TM3 7, 8
*1

Uncharged
a-contact

Turned ON (closed) at time
of Lossnay malfunction.

220 V AC, 100 mA
5 V DC, 100 mA

240 V AC, 2 A
24 V DC, 2 A

Operation monitor
*3

TM4 9, 0

Uncharged
a-contact

Turned ON (closed) at time
of Lossnay operation.
This can also be turned ON
(closed) at time of air sup­ply fan operation.

Operation monitor
with delay func­tion 1

Turned ON (closed) 10 sec­onds after start of air supply
fan.

220 V AC, 100 mA
5 V DC, 100 mA

240 V AC, 1 A
24 V DC, 1 A

Bypass operation
monitor

TM3 6, 7
*2

Uncharged
a-contact

Turned ON (closed) at time
of bypass ventilation.

Operation
monitor with delay
function 2

Turned ON (closed) 10 sec­onds after start of air supply
fan when outdoor air tem­perature is -5ºC or lower.
Turned OFF (open) when
outdoor air temperature is
15ºC or higher.

220 V AC, 100 mA
5 V DC, 100 mA

*1 Terminal 7 of TM3 is a common terminal with bypass operation monitor/operation monitor with delay function

2 output 7.
*2 Terminal 7 of TM3 is a common terminal with malfunction monitor output 7.
*3 The operation monitor can also be used as an air supply fan operation monitor with the setting described

below.

< When using PZ-60DR-E > Set “2” for operation monitor output of function selection.
< When not using PZ-60DR-E > Set the operation monitor output switch on the Lossnay circuit board

(SW5-2) to ON. (This function cannot be used when operation monitor
with delay function 1 has been set.)

2 Input terminals

a. High/Low/Extra Low fan speed switching input

This is used for external switching of the fan speed by means of a commercially available CO

2 sensor, etc.

During the input of High (Extra High)/Low/Extra Low fan speed selection, PZ-60DR-E displays
“Automatic Fan Speed” indicator. The set fan speed cannot be changed while “Automatic Fan
Speed” is displayed due to operation restrictions. Other remote controllers and system con­trollers can change the fan speed display; however, the fan will remain fixed at the input fan
speed selection of High (Extra High)/Low/Extra Low.

When using PZ-60DR-E in a system of multiple Lossnay units, input of High (Extra
High)/Low/Extra Low fan speed into the “Main” Lossnay will permit the switching of the fan
speed of all Lossnay units within the same group. When not using PZ-60DR-E, input
High/Low/Extra Low fan speed into each Lossnay unit. In this case, the setting is applied only to
the Lossnay units that have received the High/Low/Extra Low input.

Operation

Multiple

units

• A remote display adaptor (PAC-SA88HA-E), which is sold separately, is required for the connections.

• The LGH-150 and 200 types cannot use the Extra Low fan speed selection input.

—34—

[3] When operating on Extra Low fan speed via external input (The LGH-150 and 200 types cannot be

used)
Usually, ventilation is performed at High (Extra High)/Low fan speed, and there is automatic switching to
Extra Low fan speed when an absence of dirty indoor air is detected by a CO

2 sensor, etc.

Insert the remote display adaptor (PAC-SA88HA-E) into the connector (CN16) on the Lossnay circuit
board, and input the signal (uncharged a-contact) from a CO

2 sensor to the brown and yellow lines.

When the contacts in the diagram below are ON (closed), the system will switch to Extra Low fan speed
regardless of the fan speed settings on the remote controller or the system controller.

Brown 1

Red 2

CN16

Contact rating: 15 V DC, 0.1 A or greater
Minimum applicable load: 1 mA or less

Wiring length within 10 m

Yellow 4

Orange 3

Green 5

Lossnay circuit board

CO

2 sensor, etc.

(At time of CO

2 decrease: Close)

Remote display adaptor
(Sold separately)

PAC-SA88HA-E

Fan speed/ventilation
mode switching

Insulation
processing

[1] When operating on High (Extra High) fan speed via external input

Usually, ventilation is performed at Low/Extra Low fan speed, and there is automatic switching to High
(Extra High) fan speed when dirty indoor air is detected by a CO2 sensor, etc.
Insert the remote display adaptor (PAC-SA88HA-E) into the connector (CN16) on the Lossnay circuit
board, and input the signal (uncharged a-contact) from a CO

2 sensor to the brown and red lines. When

the contacts in the diagram below are ON (closed), the system will switch to High (Extra High) fan speed
regardless of the fan speed settings on the remote controller or the system controller.

[2] When operating on Low fan speed via external input

Usually, ventilation is performed at High (Extra High) fan speed, and there is automatic switching to Low
fan speed when an absence of dirty indoor air is detected by a CO

2 sensor, etc.

Insert the remote display adaptor (PAC-SA88HA-E) into the connector (CN16) on the Lossnay circuit
board, and input the signal (uncharged a-contact) from a CO2 sensor to the brown and orange lines.
When the contacts in the diagram below are ON (closed), the system will switch to Low fan speed
regardless of the fan speed settings on the remote controller or the system controller.

CN16

Contact rating: 15 V DC, 0.1 A or greater
Minimum applicable load: 1 mA or less

Wiring length within 10 m

Brown 1

Red 2

Yellow 4

Orange 3

Green 5

Lossnay circuit board

CO

2 sensor, etc.

(At time of CO

2 increase: Close)

Remote display adaptor
(Sold separately)
PAC-SA88HA-E

Fan speed/ventilation
mode switching

Insulation
processing

CN16

Contact rating: 15 V DC, 0.1 A or greater
Minimum applicable load: 1 mA or less

Wiring length within 10 m

Brown 1

Red 2

Yellow4

Orange 3

Green 5

Insulation
processing

Lossnay circuit board

CO

2 sensor, etc.

(At time of CO

2 decrease: Close)

Remote display adaptor
(Sold separately)
PAC-SA88HA-E

Fan speed/ventilation
mode switching

—35—

CN16

Contact rating: 15 V DC, 0.1 A or greater
Minimum applicable load: 1 mA or less

Brown 1

Red 2

Yellow 4

Orange 3

Green 5

Lossnay circuit board

External switch, etc.
(At time of bypass ventilation: Closed)

Remote display adaptor
(Sold separately)
PAC-SA88HA-E

Fan speed/ventilation
mode switching

Insulation
processing

Wiring length within 10 m

b. Bypass ventilation switching input

This is used to force a changeover of the ventilation mode to bypass ventilation by means of the input of an
external switch, etc.

During the input of bypass ventilation switching, the ventilation mode display of the remote con­troller and the system controller will change to bypass ventilation. With PZ-60DR-E, the
ventilation mode setting cannot be changed due to operation restrictions. Even using a different
remote controller or system controller to change the ventilation mode setting will result in an
automatic return to bypass ventilation.
Note that when the conditions of bypass ventilation prohibition are applicable, the ventilation
mode display of the remote controller and the system controller will remain as bypass ventila­tion; however, only damper operation will be fixed at Lossnay (heat exchange) ventilation.

When using PZ-60DR-E in a system of multiple Lossnay units, input of bypass ventilation
switching into the “Main” Lossnay will permit the switching of the ventilation mode of all
Lossnay units within the same group. When not using PZ-60DR-E, input bypass ventilation
switching into each Lossnay unit. (The setting is applied only to the Lossnay units that have
received input.)

Operation

Multiple

units

A remote display adaptor (PAC-SA88HA-E), which is sold separately, is required for the connections.
Insert the remote display adaptor (PAC-SA88HA-E) into the connector (CN16) on the Lossnay circuit board,
and input the signal (uncharged a-contact) from an external switch to the brown and green lines. When the
switch is ON (closed) in the diagram below, the system will switch to bypass ventilation regardless of the ven­tilation mode setting of the remote controller and the system controller.

(7) Remote/Local switching

This is used to prohibit Starting-Stopping from the remote controller.
A remote ON/OFF adaptor (PAC-SE55RA-E), which is sold separately, is required.
Insert the remote ON/OFF adaptor (PAC-SE55RA-E) into the connector for remote switching (CN32) on the
Lossnay circuit board, and connect the remote control signal (uncharged a-contact).
Note: This function cannot be used when using PZ-41SLB-E.

Remote ON/OFF adaptor (Sold separately)

Remote control switch

PAC-SE55RA-E

Lossnay circuit board

Switch

2

Switch

1

Brown 3

Red 2

Orange 1

CN32

Remote/Local
switching

Wiring length within 10 m

Start/stop operation is not possible with the remote controller when switch 1 is ON.
While switch 1 is ON, turning switch 2 ON will start Lossnay, and turning switch 2 OFF will stop Lossnay.

* Remote/Local switching and operation interlocked with an external device (external control input) cannot be

used together.

Operation

—36—

(8) Trial operation function

This function operates Lossnay without the need of a device (such as a remote controller, or an external device)
to control Lossnay.
This function permits verification of the connection condition of the AC line and wiring when Lossnay has been
set up.

Also, Lossnay can be forced to operate even when the system is down.

• Trial operation mode
Setting the trial operation switch (SW 2-1) on the Lossnay circuit board to ON will set the High (Extra High) fan
speed operation mode. The damper will be fixed at bypass ventilation for approximately 1 minute, and then the
system will be fixed at Lossnay ventilation.

* If the Lossnay remote controller or the centralized controller have been set, you can verify on the display of the

LCD that Lossnay is in the trial operation mode.

Air supply side, and exhaust side fan will both be High (Extra High) fan speed
Bypass ventilation (normal ventilation) fixed

Control target
Fan
Damper motor

(9) Night Purge operation

PZ-60DR-E is required to perform night purge operation.
Night purge operation is used in the summer to automatically ventilate a room at night while the air conditioner is
stopped, to discharge accumulated heat and there by reduce the air conditioning load the next morning.
If Night purge is enabled per the “Installation Manual” [5. Function Selection [5] (8)], night purge operation will be
performed based on the flowchart shown in the next page.
From 1:00 A.M. to 6:00 A.M, “Night Purge” indicator is shown on the screen (at 1 ).

• The fan speed will revert to the last setting before the Lossnay unit was stopped.

• Night purge operation is terminated in any of the following conditions (1 to 4), and is not resumed until the

start conditions of the next day are reached.

1 Between 6:00 and 0:59

2 When the operation is stopped between 1:00 and 6:00 with a remote controller or system controller

3 When the operation is switched on or off between 1:00 and 6:00 by a scheduled timer (Weekly timer)

4 When the operation is switched on or off between 1:00 and 6:00 by an air conditioner, an external control

input or a remote input

Note:

• Night purge can be performed when the clock use setting is ON (use clock) in Function Selection.

• The Function Selector cannot be switched during Night purge operation. (“Locked” 2 will blink.)

• Night purge cannot be used with the Simple timer.

• Night purge settings can be checked in the Function Selection mode.

• When more than one Lossnay units are running, the temperature is measured by the “Main” Lossnay.

• Night purge is not performed when “CENTRAL” is displayed.

21

—37—

*1: When Lossnay is interlocked with the City Multi indoor units, “Stop of Lossnay during interlocked operation

with the City Multi operating in cooling mode” is another necessary condition in addition to that of “Detection
of an outdoor temperature of 17 ºC or 28 ºC or higher (within 24 hours)”.

(Night Purge operation will be performed when either of these necessary conditions has been satisfied.)

Night Purge mode is active; no operation

1:00 A.M.

Outdoor

temperature 17

º

C/28ºC

or more (within 24

hours)

Temperature monitoring
operation (5 minutes)

Night Purge operation

(Bypass ventilation)

55-minute stop

Night Purge

operating

Finish Night Purge

operation (Stop)

No

Yes

6:00 A.M.

No

No

No

No

Yes

Yes

Yes

Yes

The outdoor temperature (OA) setting can be selected either 17ºC or
28ºC by using Dip-Switch (SW2-7) in the Lossnay control box.
Refer to the remote controller installation manual for more information.

*1

Indoor

temperature > 22ºC and

Indoor temperature

- Outdoor temperature

> 5ºC

—38—

Exhaust Extra High/High * ON : Exhaust air fan Extra High fan speed

OFF: Exhaust air fan High fan speed (Factory setting)

10

Pulse input * ON : At time of pulse signal input (Requires a pulse width of 200 ms or

greater)

OFF: At time of Level signal and Mr. Slim signal inputs (Factory setting)

2

(10) Setting of function selection switches (SW1, 2, and 5)

The associated switches are as listed below.

* This function can also be set from PZ-60DR-E. When the function has been switched from the remote con-

troller later on, the system will operate according to the setting of the remote controller.

Type

Trial operation ON : Trial operation mode

OFF: Normal mode (Factory setting)

SW2

1

Delay setting *
Note 2

ON : Delay operation of 30 minutes
OFF: Normal (Factory setting)

SW5

1

Operation output monitor * ON : Operation monitor output correspond to air supply fan

OFF: Operation monitor output with normal operation (Factory setting)

2

Exhaust fan stop during air
conditioner defrost *
Exhaust fan Low fan speed at
outdoor air temperature of ­15ºC or lower *

ON : Both Exhaust air fan and Supply air fan (Low fan speed) opera-

tion at outdoor air temperature of -15ºC or lower

OFF: Exhaust fan operation (Only Supply air fan stopped) (Factory set-

ting)

3

Automatic recovery after
power failure *
Note 2

ON : After the recovery, operation at the mode preceding the power

failure

OFF: Stop after the recovery (Factory setting)

4

Filter cleaning setting *
Note 2

Selection switch for accumulated running time of the filter

cleaning

dis­play.
ON : 3,000 hours
OFF: No filter maintenance display (Factory setting)

5

TM3 6, 7 output setting ON : Operation monitor output with delay functions 2. Refer to (3) 2

Fan speed control by function setting (page 26), and (6) 1
Output terminals (page 33).

OFF: Bypass ventilation operation monitor output (Factory setting)

6

Interlock mode setting *
Note 2

Effective only at time of external control input usage.
Refer to (5) 2 Interlock mode (page 32).

7
8

Power supply/exhaust when
operation starts *

ON : Power supply exhaust mode
OFF: Normal mode (Factory setting)

3

SA fan fixed at Low speed * ON : Low fan speed fixed

OFF: Normal mode (Factory setting)

4

EA fan fixed at Low speed * ON : Low fan speed fixed

OFF: Normal mode (Factory setting)

5

Power supply ON/OFF *
Note 2

ON : Enable
OFF: Disable (Factory setting)

6

Bypass ventilation priority at
Automatic mode *
Temperature condition for
Night purge operation

ON : Automatic ventilation outdoor air cooling priority mode / Night

purge operation condition of outdoor air temperature is 17ºC or
higher (within 24 hours)

OFF: Automatic ventilation normal mode / Night purge operation condi-

tion of outdoor air temperature is 28ºC or higher (within 24 hours)
(Factory setting)

7

TM4 9, 0 output setting ON : Operation monitor output with delay function 1. Refer to (3) 2

Fan speed control by function setting (page 26), and (6) 1
Output terminals (page 33).

OFF: Operation monitor output based on SW5-2 (Factory setting)

8

Supply Extra High/High * ON : Supply air fan Extra High fan speed

OFF: Supply air fan High fan speed (Factory setting)

9

Name Specification

SW1 Main/Sub selection switch Lossnay control mode (Main/Sub) switching (The factory setting is set

to “Main”.)

—39—

Type

Exhaust fan stop at outdoor air
temperature of -15ºC or lower *

ON : Both Supply air fan and Exhaust air fan stop
OFF: Exhaust air fan operation (Only Supply air fan stopped) (Factory

setting)

SW5

9

Type setting
Note 1

LGH-15 to 100 type : Fixed at OFF
LGH-150 and 200 type : Fixed at ON

10

Name Specification

Note 1: Set LGH-15 to 100 types to the OFF setting, and LGH-150 and 200 types to the ON setting. The system

will not operate properly when the setting is changed.

Note 2: When PZ-41SLB-E is used, the settings will be disabled for SW2-6, SW 5-1, SW5-4, SW5-5, and SW5-

7, and SW5-8.

(Operation after a recovery from a power failure will be fixed at power failure automatic recovery, and

functions other than this will be according to the setting of PZ-41SLB-E.)

Note 3: When the aforementioned switches (SW2, and SW5) are at the factory setting, type LGH-15 to 100 will

all be at the OFF setting, and type LGH-150 and 200 will all be set to OFF except for SW5-10.
When replacing the circuit board, set the new board to the same setting as that of the board prior to
replacement.

• Main/Sub selection switch

● In systems of only one Lossnay unit, be sure to set it to “Main”.

● In systems with multiple Lossnay units, be sure that one unit is set to “Main”, and that all the others are set to

“Sub”.

● When interlocked with an external device, be sure to connect the external device to the Lossnay that is set to

“Main”.

● When using PZ-60DR-E and mixing the LGH-15 to 100 types together with the LGH-150 and 200 types in a
group, set the LGH-15 to 100 types as “Main”. (When the LGH-150 and 200 types are set to “Main”, Extra
Low operation will not be possible.)

(11) Function selection with PZ-60DR-E

When using PZ-60DR-E, function selection can be made from the remote controller.
Functions can be switched from PZ-60DR-E even after the function selection switch has been set on the
Lossnay circuit board.
(Settings from PZ-60DR-E will have priority over function selection switch settings of the Lossnay circuit board.)
When two remote controllers are used, “24HR VENTILATION”, “LOSSNAY FUNCTION”, and “INTERLOCK SET­TING” can be set only on the “Main” remote controller.
The “Main” and “Sub” remote controller will be determined automatically by communication when the main unit
power is turned on. The side on which “24HR VENTILATION”, “LOSSNAY FUNCTION”, and “INTERLOCK SET­TING” are displayed is the “Main” remote controller.
* For information about operation of PZ-60DR-E, refer to the Lossnay remote controller PZ-60DR-E Installation

Manual and the Operating Instructions.

—40—

no1

Lock with the exception of the “ON/OFF” but­ton

oFF

1 Function selection mode

The following functions can be changed with PZ-60DR-E function selection mode. Please change the settings
as needed.

*1: To execute the operation lock, the execution operation (of holding down the “Filter” button and the “ON/OFF”

button simultaneously for 2 seconds) is required at the normal screen.
To cancel, the same operation is also required.

Major items

Dot matrix display characters English
(Factory setting)

—

*1

*2

*3

*4

*5

—

—

Change
Language

English display

Intermediate

items (Names)

Dot matrix

display

Selection

display

Function

Notes

Function limit

Mode
selection

Display
change

German display Dot matrix display characters German

Spanish display

Dot matrix display characters Spanish

Russian display

Dot matrix display characters Russian

Italian display

Dot matrix display characters Italian

Dot matrix display characters ChineseChinese display

Dot matrix display characters FrenchFrench display

Dot matrix display characters JapaneseJapanese dis-

play

Without operation lock (Factory setting)

no2 All button lock
oFF

Stops operation by pressing the “ON/OFF”
button during operation (Factory setting)

on

Extra Low fan speed operation by pressing
the “ON/OFF” button during operation
To stop, press the “ON/OFF” button twice
within 3 seconds, or hold down the “ON/OFF”
button for 5 seconds

Button operation
restricted mode
(Operation lock)

24 hour ventila­tion setting
(The LGH-150

and 200 types
cannot be set)

oFF Clock function is not used

on

on

oFF

Use the clock function (Factory setting)
Use the weekly timer (Factory setting)

This cannot be selected unless the clock
function is used

Use the simple timer
Clock (time, day of the week) is not displayed

Timer is not used

Clock use set­ting

Timer function
setting

Contact number
setting
(

Display contact
information when
there is a fault

)

Contact information is not displayed when
there is a fault (Factory setting)

Filter mainte­nance sign set­ting

The telephone number that has been set is
displayed at time of fault

With “FILTER CLEANING” maintenance sign
display

on

Lossnay core
maintenance
sign setting

With “CORE CLEANING” maintenance sign
display

Without “FILTER CLEANING” maintenance
sign display (Factory setting)

oFF

Without “CORE CLEANING” maintenance
sign display (Factory setting)

—41—

Exhaust fan
speed setting

Power
supply/exhaust
when operation
starts

Sub Lossnay
setting

*2: When the 24 hour ventilation setting is ON, “24HR VENTILATION” is displayed during Extra Low fan speed

operation.
When the pulse input setting is ON, the 24 hour ventilation setting is not permitted.
When using two remote controllers, the 24 hour ventilation setting is not permitted from the “Sub” remote
controller.
Even during the High/Low fan speed switching input (Refer to page 33 and 34), 24 hour ventilation (Extra

Low fan speed operation) will be given priority.
*3: When using weekly timer and night purge operation, please set clock use to on.
*4: When using the simple timer, night purge operation will not be possible.
*5: When the contact information display is set at the time of a fault, pressing the “Clear” button of the remote

controller will display the number that was set.

When two remote controllers are used, the following settings are permitted for the “Main” remote controller only.

Major items

Used at Extra High fan speed/Low fan speed

—

—

*6

*7

*8

*9

*10

*11

—

Installation
setting

Supply fan
speed setting

SH: L

Used at High fan speed/Low fan speed
(Factory setting)

H: L

Fixed at Low fan speed (Multiple ventilation
mode)

L

Used at Extra High fan speed/Low fan speedSH: L
Used at High fan speed/Low fan speed

(Factory setting)

H: L

Fixed at Low fan speed (Multiple ventilation
mode)

L

Do not execute power supply/exhaust when
operation starts (Factory setting)

oFF

Execute power supply/exhaust when opera­tion starts (30 minutes)

on

Intermediate

items (Names)

Dot matrix

display

Selection

display

Function

Notes

Enable function settings from the remote con­troller to the “sub” Lossnay (Factory setting)

RC

Disable function settings from the remote
controller to the “sub” Lossnay

dIP

Stop when the power supply is turned on
(Factory setting)

oFF

Operate at the condition prior to turning off
the power

AUTo

Start when the power supply is turned onon

Power supply
ON/OFF/AUTO

Corresponding to the operation monitor out­put exhaust fan (Factory setting)

1

Corresponding to the operation monitor out­put air supply fan

2

Operation moni­tor output selec­tion

Automatic ventilation outdoor air cooling pri­ority mode / Night purge operation condition
of outdoor air temperature is 17ºC or higher
(within 24 hours)

1

Automatic ventilation normal mode / Night
purge operation condition of outdoor air tem­perature is 28ºC or higher (within 24 hours)
(Factory setting)

2

Automatic venti­lation adjust­ment pattern
selection

Exhaust fan stopoFF

Exhaust fan operates at Low fan speed (fixed)
Exhaust fan normal operation (without fan

speed change) (Factory setting)

Lo

on

Exhaust fan speed
selection for cold
region intermittent
operation
(at outdoor air

temperature of

-15ºC or lower)
Night purge disabled (Factory setting)oFF
Night purge enabledon

Night purge set­ting

—42—

Without pulse input (Factory setting)

With delay operation (for 30 minutes)on
Exhaust fan stopoFF

With pulse inputon
Without delay operation (Factory setting)oFF

oUT
oFF

Major items

ON/OFF interlocked (Factory setting)

Interlocking
item setting

Interlock mode
selection

onoF

ON interlockedon
OFF interlockedoFF
External input signal priority

Intermediate

items (Names)

Dot matrix

display

Selection

display

Function

Notes

Pulse input set­ting

Delay operation
setting

Exhaust opera­tion setting dur­ing air condition­er defrosting

Exhaust fan operation (Factory setting)on

*12

*13

*14

*9

*6 : Pressing the “fan speed adjustment” button during the power supply/exhaust operation at the start of oper-

ation will result in a change of the fan speed.

*7 : Only the following functions will be supported. “Supply fan speed” “Exhaust fan speed” “Power

supply/exhaust when operation starts”

*8 : The setting of the operation monitor output selection will be disabled when the setting is to Operation moni-

tor output with delay function 1 with the TM4 9, 0) output setting switch (SW2-8) on the Lossnay circuit
board, or when the setting is to Operation monitor output with delay function 2 with the TM3 6, 7 output
setting switch (SW5-6).

*9: When cold region intermittent operation or air conditioner defrost operation has been set during Extra Low

fan speed operation, the supply fan will stop, and the exhaust fan will operate at Low fan speed or stop.

*10: When clock use is OFF and the simple timer is used, night purge operation will not be performed.

Switching of the ventilation mode will not be possible during night purge operation (Bypass ventilation fixed)

*11: Refer to (4) 5 Automatic ventilation algorithm temperature map.
*12: External input priority will not be possible when the pulse input setting is ON.
*13: When the pulse input setting is ON, the 24 hour ventilation setting is not permitted.
*14: Delayed operation will not be possible when the pulse input setting is ON.

Total operation hours display

Total operation hours of Lossnay ventilation display

Lossnay address switch condition

Self diagnosis (Error history/Error history clear)

Memory clearance

Intermediate ItemsMajor items

Lossnay
address

Normal display (Display when
the Lossnay unit is not running)

Remote Controller Maintenance Mode

(Hold down the A button and simultaneously

press the

F

button for

2 seconds, or

L

button)

(Hold down the

A

button and simultaneously

press the

F

button for 2 seconds.)

Press the

A

button.

Press the

A

button.

Press the

B

button.

Press the

B

button.

Press the

B

button.

Press the

B

button.

Press the

A

button.

Press the

B

button.

Press the

B

button.

Press the

B

button.

Total operation
hours monitor

Notes

2 Maintenance mode

This mode displays the total operation hours of Lossnay, checks the Lossnay address, and displays the error
history.

• If the remote controller Maintenance mode is entered during timer operation, the timer operation will be can­celled. Set timer operation after completing the remote controller Maintenance mode.

• When using two remote controllers, if one remote controller is set to remote controller Maintenance mode,
“” will be displayed in the other remote controller and its operation will be disabled.

• Button response may at times be slow due to communication processing; this is not an error.

—43—

Alternately displays at a 0.5 second interval the error
number, generated attribute, and address as the latest
error history stored with the remote controller. This dis­plays the error number and the attribute when the
address has not been set (i.e., address 00).
“FFFF” will be displayed when the error history is not
available.

*16

Maintenance

Total operation
hours of
Lossnay ventila­tion display

Displays the total Lossnay operation hours.
(The 10,000 and 100,000 hours digits are displayed in

the air supply temperature display area)

Displays the total operation hours when the damper is
on the Lossnay side (Lossnay ventilation condition).
(The 10,000 and 100,000 hours digits are displayed in

the air supply temperature display area)

Major items

Total opera­tion hours
monitor

Total operation
hours display

Intermediate

items (Names)

Dot matrix

display

Function

Notes

Displays the address switch condition of the “Main”
Lossnay.
(Example: 001 will be displayed when the address is

number 01)

Lossnay
address switch
condition

Self diagnosis
(Error

history/Error
history clear)

Returns all of the remote controller settings and stored
content to the factory setting.
Hold down the “Clear” button of the remote controller. A
change of the display from “rdy” to “End” will indicate
the completion of memory clearance.

Memory clear­ance

*15

—

*17

Dot display

Total operation hours, Maintenance items display

Back button

MENU (MONITOR/SET) button

CLEAR button

ON/OFF button

button

*15: Performing the memory clearance operation of the maintenance mode will clear the total operation hours.
*16:

Two presses of the remote controller “Clear” button during the self diagnosis display will clear the error history.

Note also that performing the memory clearance operation of the maintenance mode will clear the error history.

*17: The setting content that is stored by the Lossnay unit will not be cleared; therefore, after executing memory

clearance, use the remote controller to perform the function settings again.

—44—

(12) Operation sequence flowchart

Power On

System with Lossnay

remote controller

Data input
Temperature data
(Outdoor air temperature/Indoor
temperature)

Diverse error detection Diverse error detection

NO

Operation instruction
by Lossnay remote
controller or external
device?

YES

Selection

switch input

Is there a Lossnay
remote controller?

S

ystem without Lossnay

remote

NO

Data input
Temperature data
(Outdoor air temperature/Indoor
temperature)

NO

Start instruction
by external
control input?

controller

Fan

Stop

Damper

control

mode

Heat exchange
ventilation fixed

High (Extra

fan

High)
speed

YES

YES

remote controller

Low

fan

speed

Outdoor
temperature

NO

<

8ºC

Bypass
ventilation
fixed

Selection by

Extra Low fan speed
operation when
using PZ-60DR-E
(other than the
LGH -150 and 200
types )

Selection by remote

controller

Automatic
ventilation by
temperature data

Stop

Heat exchange
ventilation fixed

NO

YES

High (Extra
High)

High (Extra

fan speed

High)

Automatic
ventilation by
temperature data

YES

Are the PAC, MA
remote controller or
the A-control remote
controller used?

Selection by PAC
remote controller

Low fan

fan speed

speed

Automatic
ventilation by
PAC operation
mode, target
temperature, and
temperature data

Confirmation items
1 Condition of trouble – remote controller dis-

play, etc.

2 Frequency of trouble – date of start of opera-

tion and occurrence

3 Occurrence timing
4 Existence of drawings, equipment (including

controllers), cables, wiring, and settings.

Applicable models
Lossnay
LGH-15 to 200RX

5-E

Remote controller
PZ-60DR-E
PZ-41SLB-E
PZ-52SF-E

Troubleshooting 1 The system will not start properly.

•

Check the initialization checklist from
installation to operation (Table 1-1-1 to 1-1-4 ).

•

Check the system checklist (Table 1-2-1 to 1-2-2).

Troubleshooting 2 •An error code displays on the remote

controller.

•The LED on the Lossnay circuit board is
blinking or lit up.

Check the checklist of error codes and
LED displays (Table 2-1 to 2-2).

Troubleshooting 3

The remote controller operation is
disabled or irregular.

The Lossnay operation is disabled or
irregular.

Troubleshooting 4

Check the checklist for the remote controllers
(Table 3-1 to 3-2).

Check the Lossnay checklist (Table 4).

Yes

No

No

This is normal.

No

No

Yes

Yes

Yes

—45—

7. Troubleshooting

I Work precautions

• When removing or touching a transformer, printed circuit board or other parts, make sure to turn off the power
supply isolator.

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

• If it is thought that there is a printed circuit board malfunction, check for disconnected wires in the print pattern,
burnt parts or discoloration.

• If the printed circuit board is replaced, make sure that the switch settings on the new board are the same as the
old board.

8 Part names used in the following text correspond to those listed in the parts catalog.

7-1 Service Flow

—46—

Is the main power supply on?

Checkpoint

1

No.

2 Do the main power supply switching capacity and wiring diameter meet

specification?

3 Is the specified power supply of 220 to 240 V AC connected to the power

supply terminal (TM1)?

4 Has the fuse (FUSE 1) on the circuit board blown?

5 Are connector CN1 of the transformer primary and connector CN2 of the

transformer secondary on the circuit board securely connected?

6 Is the power supply wiring incorrectly wired, or is there a faulty connection?

7 Is power display LED4 (red) on the circuit board unlit?

7-2 Checklist

(1)Troubleshooting 1: The system will not start properly.

Initialization checklist from installation to operation (Table 1-1)

After checking the system, verify the checkpoints listed below.

Action

Turn on the main power supply.

Use specified items.

Connect the specified power supply.

Replace the circuit board.

Connect them securely.

Make secure connections.

Check the above checkpoints.

Power supply (Table 1-1-1)

Do the transmission cables meet regulations? (Type, diameter)

Checkpoint

1

No.

2 Is the transmission cable wired at least 5 cm away from the power supply

cable?

3 Are multiple transmission or signal cables wired to the same power cable

duct?

4 Are multiple transmission cables wired with multi core cables?

5 Are the transmission cables securely connected to the terminals?

6 Are the transmission cables connected to the specified terminal blocks?

Basic system (PZ-60DR-E, PZ-41SLB-E): TM4 1, 2
M-NET control: TAB5

A , B

7 Is the wiring length of the transmission cable within the regulations?

Basic system (PZ-60DR-E, PZ-41SLB-E): Total extension within 500 m
M-NET control:

Maximum extension within 200 m, total extension within 500 m

Action

Use specified cables.

Wire the transmission cable at least
5 cm away from the power supply
cable.

Wire the transmission cables away
from the signal cables.

Using suitable cables, wire the
transmission cables so that they are
separated from one another.

Connect them securely.

Connect them to the specified termi­nal blocks.

Wire within the regulations.
(See the technical manual for

details about the regulations.)

Transmission cables (Table 1-1-2)

Check the following checkpoints when connecting with the remote controller, M-NET controller, or City Multi indoor units.

8 Is the Main/Sub selection switch (SW1) on the Lossnay circuit board set

correctly?

When using one Lossnay unit: Set the unit to “Main”.
When using multiple Lossnay units: Set the first unit to “Main” and the

second and following units to “Sub”.

Set the switches correctly.

9 When using M-NET

Is the address setting on the Lossnay circuit board (SA1, SA2) set to the
correct number?

Make the setting so that the
address does not duplicate that of
other devices within M-NET control.

10 When PZ-60DR-E is not used, are the function selection switches (SW2,

SW5) on the Lossnay circuit board set correctly?

Set the switches correctly to corre­spond with the application.
(Refer to page 38 and 39)

11 When PZ-60DR-E is used, is the function selection set correctly? Set it correctly to correspond with

the application.
(Refer to page 40 to 42)

—47—

Do the transmission cables meet regulations? (Type, diameter)

Checkpoint

1

No.

2 Is the signal cable wired at least 5 cm away from the power supply cable?

3 Are multiple transmission or signal cables wired to the same power cable

duct?

4 Are multiple signal cables wired with multi core cables?

5 Are the signal cables securely connected to the terminals?

6 Are the signal cables connected to the specified terminal blocks?

Mr. Slim control signal : TM2 1, 2
Charged signal : TM2 1, 2
Uncharged a-contact signal: TM2 1, 3

7 Is the wiring length of the signal cable within the regulations?

Mr. Slim control signal : Total extension within 500 m
Charged signal : Within limitation of the external device
Uncharged a-contact signal: Total extension within 500 m

Action

Use specified cables.

Wire the signal cable at least 5 cm
away from the power supply cable.

Wire the transmission cables away
from the signal cables.

Using suitable cables, wire the sig­nal cables so that they are separat­ed from one another.

Connect them securely.

Connect them to the specified termi­nal blocks.

Wire within the regulations.

Signal cables from external devices (Table 1-1-3)

Check the following checkpoints when connecting with level signal/pulse signal output devices, and Mr. Slim units.

8 Do the external signals meet specifications?

Level signal: Charged 12 V DC/ 24 V DC, uncharged a-contact
Pulse signal: Charged 12 V DC/ 24 V DC, uncharged a-contact
(A pulse width of 200 ms or greater is required)

Input a signal that suits the specifi­cations.

9 Are the type of input signal and the setting of the pulse input matched?

Pulse signal : ON setting
Other than pulse signal: OFF setting

<When using PZ-60DR-E>
Check the pulse input setting from
the function selection.

(Refer to page 42)

<When not using PZ-60DR-E>
Check the setting of the pulse input
switch (SW2-2) on the Lossnay cir­cuit board. (Refer to page 38)

10 In a system with multiple Lossnay units, are the signal cables connected to

the specified Lossnay unit?

Basic system (PZ-60DR-E, PZ-41SLB-E):
Lossnay unit for which the Main/Sub selection switch (SW1) is set to “Main”
M-Net control:
Lossnay unit that is set to the address with the smallest number within the group

Connect the signal cables to the
specified Lossnay unit.

11 When PZ-60DR-E is not used, are the function selection switches (SW2,

SW5) on the Lossnay circuit board set correctly?

Set the switches correctly to corre­spond with the application.
(Refer to page 38 and 39)

12 When PZ-60DR-E is used, is the function selection set correctly? Set it correctly to correspond with

the application.
(Refer to page 40 to 42)

Do the signal cables meet regulations? (Type, diameter)

Checkpoint

1

No.

2 Is the signal cable wired at least 5 cm away from the power supply cable?

3 Are multiple transmission or signal cables wired to the same power cable

duct?

4 Are multiple signal cables wired with multi core cables?

5 Are the signal cables securely connected to the terminals?

6 Are the signal cables connected to the specified terminal blocks?

Operation monitor, operation monitor with delay function 1 : TM4 9, 0
Malfunction monitor : TM3 7, 8
Bypass operation monitor, operation monitor with delay function 2

: TM3 6, 7

7 Are the output capacities of the operation monitor, malfunction monitor, and

bypass operation monitor within the ratings?

Action

Use specified cables.

Wire the signal cable at least 5 cm
away from the power supply cable.

Wire the transmission cables away
from the signal cables.

Using suitable cables, wire the sig­nal cables so that they are separat­ed from one another.

Connect them securely.

Connect them to the specified termi­nal blocks.

Use within the ratings.

Signal cables to external devices (Table 1-1-4)

Check the following checkpoints when outputting the operation monitor, air supply fan operation monitor, mal­function monitor, bypass operation monitor, and operation monitor with delay function.

8 When using the operation monitor, is the setting of the output signal cor-

rect?

<When using PZ-60DR-E>
Check the operation monitor setting
from the function selection.
(Refer to page 41)

<When not using PZ-60DR-E>
Check the setting of the operation
monitor (SW5-2) on the Lossnay cir­cuit board. (Refer to page 38)

9 When using the operation monitor with delay function, is the setting of the

output signal correct?

Check the settings of the TM4 9,
0 output setting (SW2-8), and the
TM3 6, 7 output setting (SW5-6)
on the Lossnay circuit board.
(Refer to page 38)

10 When PZ-60DR-E is not used, are the function selection switches (SW2,

SW5) on the Lossnay circuit board set correctly?

Set the switches correctly to corre­spond with the application.
(Refer to page 38 and 39)

11 When PZ-60DR-E is used, is the function selection set correctly? Set it correctly to correspond with

the application.
(Refer to page 40 to 42)

Output Maximum rating Minimum rating

Operation monitor
Operation monitor with delay function 1

240 V AC 2 A
24 V DC 2 A

220 V AC 100 mA
5 V DC 100 mA

Malfunction monitor 240 V AC 1 A

24 V DC 1 A

220 V AC 100 mA
5 V DC 100 mA

Bypass operation monitor
Operation monitor with delay function 2

240 V AC 1 A
24 V DC 1 A

220 V AC 100 mA
5 V DC 100 mA

—48—

« Check the power supply to the

Lossnay. (Refer to Table 1-1-1)

« Set the Main/Sub (SW1) switch

to “Main”.

« Check the length of the trans-

mission cable wiring.

« Check the number of units con-

nected.

« Connect the transmission cable

to TM4 1, 2.

« Change to the PZ-60DR-E or

PZ-41SLB-E remote controller.

1

No.

• Remote controller
display does not
appear.

• The power display
“ ” does not
appear on the
remote controller.

• The remote con­troller continues to
display “H0”.

« Power is not supplied to the Lossnay, or power

that does not follow specifications is used.

«

When using only one Lossnay, the Main/Sub switch
(SW1) on the Lossnay circuit board is set to “Sub”.

« The overall wiring length of the transmission cable

is longer than specified (longer than 500 m).

« Is there a connection of 3 or more remote con-

trollers, or 16 or more Lossnay units?

« The remote controller is connected to TB5 (termi-

nal block for M-NET transmission cable).

« PZ-52SF-E (

Lossnay remote controller for M-NET

)

is connected to the Lossnay remote controller.

2 Remote controller

does not operate.
(Communication error

display)

« When using multiple Lossnay units, the Main/Sub

switch (SW1) on the Lossnay circuit board of the
second or following unit is set to “Main.”

« The overall wiring length of the transmission cable

is longer than specified (longer than 500 m).

« Multiple transmission cables are wired with multi

core cables.

« When two remote controllers are used, are PZ-

60DR-E and PZ-41SLB-E being used together?

« Set the Main/Sub switch (SW1)

of the second and following
Lossnay units to “Sub”.

« Check the length of the trans-

mission cable wiring.

« Using suitable cables, wire the

transmission cables so that they
are separated from one another.

« Use the same type of remote

controller.

3 Interlock operation

with external device
does not occur.

« Is the specified power being supplied to the

Lossnay unit?

« Are the signal cables from the external devices

wired according to regulations?

« The type of external signal does not match the

connected terminal unit (charged, uncharged, seri­al signal).

« The type of external signal does not match the

pulse input setting (level signal, pulse signal).

« The external device signal is not being input.
« The external device and signal cable wiring is

longer than specified.

12 V DC, 24 V DC: Longer than limitations of

external device
Uncharged a-contact: Longer than 500 m
Mr. Slim signal: Longer than 500 m

« “DELAY OPERATION ‘ON’” (PZ-60DR-E) or

“Delay time” (PZ-41SLB-E) is set. (When using
PZ-60DR-E, during the delay operation, LED1
(green) on the Lossnay circuit board will be lit.)

«

Refer to Table 1-1-1.

«

Refer to Table 1-1-3.

«

Check the type of external signal
and the connections between the
external signal and external con­trol input terminal (TM2).

« <When using PZ-60DR-E>

Check the type of external signal
and verify the pulse input setting
from the function selection.
(Refer to page 42)

<When not using PZ-60DR-E>
Check the type of external signal
and

the setting of the pulse input
switch (SW2-2) on the Lossnay
circuit board. (Refer to page 38).

« Check the external device.
« Check the length of the signal

cable wiring.

« Check the Delay operation set-

ting with the remote controller
(PZ-60DR-E or PZ-41SLB-E).

Error Cause Action

System checklist (Table 1-2)

When using PZ-60DR-E, PZ-41SLB-E, or interlocking with external devices (Table 1-2-1)

—49—

« Check the Interlock mode setting

with the remote controller (PZ­60DR-E). (Refer to page 32)

« Check the Interlock mode setting

with the remote controller (PZ­41SLB-E). (Refer to page 32)

« Check the setting of the delay

setting switch (SW5-1) on the
Lossnay circuit board. (Refer to
page 38)

« Check the setting of the interlock

mode setting switch (SW5-7,
SW5-8) on the Lossnay circuit
board. (Refer to page 38)

« Connect the external control

input signal to the Lossnay unit
set to “Main.”

« When interlocked with external

devices, remote/local switching
(CN32) cannot be used.

3

No.

Interlock operation
with external device
does not occur.

« The interlock mode is set to “ON Interlocked” or

“OFF Interlocked” with the remote controller (PZ­60DR-E).

« The interlock mode is set to “2” (ON Interlocked) or

“3” (OFF Interlocked) with PZ-41SLB-E.

«

When not using PZ-60DR-E and PZ-41SLB-E, the
delay setting switch (SW5-1) on the Lossnay circuit
board is set to ON. (During the delay operation,
LED1 (green) on the Lossnay circuit board will be lit.)

« When not using PZ-60DR-E and PZ-41SLB-E, the

interlock mode setting switches (SW5-7, SW5-8)
on the Lossnay circuit board are set to “ON
Interlocked” or “OFF Interlocked”.

« When using multiple Lossnay units, the external

control input signal is connected to a unit set to
“Sub”.

« Remote/local switching (CN32) is used.

Error Cause Action

—50—

Note: When two remote controllers are used, the combination of the PZ-60DR-E and PZ-41SLB-E cannot be used.

System checklist when using the M-NET (Table 1-2-2)

« Check the Lossnay address, and

set for an address corresponding
to interlock operation.

« Check the length of the trans-

mission cable wiring.
(See the technical manual for

details about the regulations.)

«

Change to the PZ-60DR-E or PZ­52SF-E remote controller.
(PZ-41SLB-E cannot be used

with the M-NET.)

1

No.

Lossnay does not inter­lock with City Multi indoor
unit. (Lossnay cannot be
operated by the ventila­tion button on the ME
remote controller, MA
remote controller or
MELANS.)

« Lossnay is not set for interlock operation, or is

set for interlock operation at the wrong
address.

« The length of the M-NET transmission cable

wiring from the outdoor unit or the system’s
overall wiring length is longer than specified.
(Longer than 200 m from the outdoor unit,

longer than 500 m between ends.)

« PZ-41LSB-E is connected to Lossnay.

Error Cause Action

2 Cannot operate using

MELANS or the Lossnay
remote controller.

« The address that has been set for the group in

MELANS and the address for the Lossnay are
different.

« The length of the M-NET transmission cable

wiring from the power supply unit or the sys­tem’s overall wiring length is longer than speci­fied. (Longer than 200 m from the power sup­ply unit, longer than 500 m between

ends

.)

« PZ-41LSB-E is connected to Lossnay.

« Check the registered address in

MELANS.

« Check the length of the trans-

mission cable wiring.
(See the technical manual for

details about the regulations.)

«

Change to the PZ-60DR-E or PZ­52SF-E remote controller.
(PZ-41SLB-E cannot be used

with the M-NET.)

3 A Lossnay unit should

operate independently by
MELANS or the Lossnay
remote controller, but it
interlocks with different
City Multi units.

« It has been set for interlock operation with the

City Multi units.

« Cancel the interlock operation

setting.

«

Check the power supply to Lossnay
and perform the registration again.

« Connect the transmission cable

to TB5

A , B .

« Check the transmission cable

connection.

« Check the length of the trans-

mission cable wiring.
(See the technical manual for

details about the regulations.)

« Check the setting of the address

setting switches (SA1, SA2) on
the Lossnay circuit board.

4

No.

Cannot perform group
settings for the Lossnay
using MELANS, ME
remote controller, or MA
remote controller. (The
remote controller dis­plays “88” at the time of
registration.)

« Power is not supplied to Lossnay, or power that

does not follow specifications is used.

« The M-NET transmission cable is connected to

TM4 1, 2.

« The transmission cable is not properly con-

nected to MELANS or City Multi.

« The length of the transmission cable wiring is

longer than specified (longer than maximum
200 m from the power supply unit, longer than
500 m between ends).

« Lossnay address setting (SA1, SA2) is wrong.

Error Cause Action

5 When power is supplied

to the system, the
Lossnay remote con­troller PZ-52SF-E contin­ues to display “HO” and
does not start. (Group
registration information is
erased.)

« In a system connected to MELANS, the group

setting was performed from the Lossnay
remote controller PZ-52SF-E.

« The length of the transmission cable wiring is

longer than specified (longer than maximum
200 m from the power supply unit, longer than
500 m between ends).

«

In a system connected to MELANS,
perform the group setting with the
MELANS. (Do not perform the
group setting with PZ-52SF-E.)

« Check the length of the trans-

mission cable wiring.
(See the technical manual for

details about the regulations.)

6 When power is supplied

to the system, the display
of PZ-52SF-E goes blank
and the system does not
start.

« The restricted number of connected PZ-52SF-

E units have been exceeded.

« The length of the transmission cable wiring is

longer than specified (longer than maximum
200 m from the power supply unit, longer than
500 m between ends).

«

Check the restricted number of
remote controller units when
using the power supply unit. (See
the technical manual for details.)

« Check the length of the trans-

mission cable wiring.
(See the technical manual for

details about the regulations.)

—51—

7 The power display “ ”

does not appear on the
remote controller when
power is supplied to the
system.

« When using the Lossnay units connected to

indoor unit transmission cable side and
Lossnay M-NET remote controllers:

1PZ-52SF-E is not correctly connected to the

transmission cables of the indoor units.

2

The outdoor unit is not turned on.

3The length of transmission cable wiring from

the outdoor units is longer than specified
(longer than 200 m).

« When using a power supply unit

1The power supply unit is not connected with

the transmission cable.

2The power supply unit is not turned on.

3The length of the M-NET transmission cable

wiring from the power supply unit is longer
than specified (longer than 200 m).

« The transmission cable power supply restric-

tions have been exceeded.

1 Check the transmission cable

connection.

2

Check the power of the outdoor unit.

3 Check the length of the trans-

mission cable wiring.
(See the technical manual for

details about the regulations.)

1 Connect the power supply unit

with the transmission cable.

2 Check the power of the power

supply unit.

3 Check the length of the trans-

mission cable wiring.
(See the technical manual for

details about the regulations.)

« Make connections within the

transmission cable power supply
restrictions of the outdoor units,
or the power supply units.
(See the technical manual for

details about the restrictions.)

No.

Error Cause Action

—52—

« Check the power to Lossnay.
« Check the address registration

of PZ-52SF-E with MELANS
(“HO” displays for 3 to 10 min-

utes when power is supplied to
the system).

« Connect the transmission cable

to TB5

A , B .

« Check the Lossnay registration

with PZ-52SF-E.

« Verify the address (SA1, SA2)

and register them again.

« Make connections within the

transmission cable power supply
restrictions of the outdoor units,
or the power supply units.
(See the technical manual for

details about the restrictions.)

« Perform group setting again.

8 The remote controller

PZ-52SF-E continues to
blink “HO” when the
power is supplied to the
system.

«

The specified power is not supplied to Lossnay.

« Group setting of the PZ-52SF-E address has

not been performed with MELANS.

« Group setting has been performed with PZ-

52SF-E.

« The M-NET transmission cable is connected to

TM4 1

,

2.

«

For a Lossnay individual system with no
MELANS,

Lossnay registration has not been

performed by PZ

-52SF-E

.

«

Lossnay address setting (SA1, SA2) is wrong.

«

Lossnay address setting (SA1, SA2) was changed.

« The transmission cable power supply restric-

tions have been exceeded.

«

Group setting has not been performed after
replacement of the circuit board.

9 “LC 6608” appears on

the remote controller and
the Lossnay does not
operate.

« PZ-60DR-E is connected to the terminal block

(TB5

A , B ) for the M-NET transmission

cable.

« Rather than PZ-52SF-E, PZ-41SLB-E is con-

nected to the M-NET transmission cable.

« When using PZ-60DR-E, con-

nect to the terminal block (TM4
1, 2) for the remote controller
transmission cable.

«

Change to the PZ-60DR-E or PZ­52SF-E remote controller.
(PZ-41SLB-E cannot be used
with the M-NET.)

10 The operation from

MELANS and Lossnay
operation differ.

« PZ-41SLB-E is connected to Lossnay.

« PZ-60DR-E is connected by crossover cable

with multiple Lossnay units of a separate
group.

«

Change to the PZ-60DR-E or PZ­52SF-E remote controller.
(PZ-41SLB-E cannot be used

with the M-NET.)

«

Do not connect PZ-60DR-E with
multiple Lossnay units of a sepa­rate group.

Note: PZ-60DR-E and PZ-52SF-E cannot be used in the same group.

0.25S 0.25S 0.25S

5S

OFF

ON

Error display example: (Two blinks)

Checklist of error codes displayed on the PZ-60DR-E (when not using M-NET) or PZ-41SLB-E, and LED displays (Table2-1)

(2)Troubleshooting 2

GAn error code displays on the remote controller.

GThe LED on the Lossnay circuit board is blinking or lit up.

An error code displayed on the remote controller (PZ-60DR-E, PZ-41SLB-E, PZ-52SF-E) or the M-NET con­troller, and blinking or illumination of LED1 (green) or LED2 (red) on the circuit board shows the type of error.
The LED blink interval is 0.25 seconds for both on and off. The display duration is approximately 5 seconds.

LC 6608

Error code

—

LED1

(green)

—

LED2

(red)

Lossnay
communi­cation
error

«

When using multiple Lossnay units, the
Main/Sub setting has not been made
for the second unit and following units.

« Multiple transmission cables are

wired using multi core cables.

« Transmission cable and power cable

are too close.

«

Transmission cable is not securely connected.

« The length of the transmission cable

wiring is longer than specified
(longer than 500 m).

«

Turn off the main power supply and set the
Main/Sub selection switch (SW1) (first unit to
“Main”, second and following units to “Sub”).

« Using suitable cables, wire the

transmission cables so that they are
separated from one another.

«

Wire the transmission cable at least 5
cm away from the power supply cable.

«

Check the transmission cable connection.

« Check the length of the transmission

cable wiring.

Error Cause Action

RC6608

SRC 6608

——

Communica
tion error
between
remote con­trollers
(when two
remote con­trollers are
connected)

« Multiple transmission cables are

wired using multi core cables.

« Transmission cable and power sup-

ply cable are too close.

«

Transmission cable is not securely connected.

« The length of the transmission cable

wiring is longer than specified
(longer than 500 m).

« Using suitable cables, wire the

transmission cables so that they are
separated from one another.

«

Wire the transmission cable at least 5
cm away from the power supply cable.

«

Check the transmission cable connection.

« Check the length of the transmission

cable wiring.

RC 6201,6202

SRC 6201,6202

— — Remote

controller
error

« The remote controller has broken

down.

« Replace the remote controller.

LC 3126

SLC 3126

8

blinks

— External

device
error

« When the TM3 6, 7 output setting

switch (SW5-6) is ON, the following
conditions are applied.

•

OA temperature is still -10°C or lower,
60 minutes after the output started

•

OA temperature is 15°C or higher with­in 15 minutes after the output started

• OA temperature is 70°C or higher

« When external devices are connect-

ed, check the external devices.

« When external devices are not con-

nected, check the TM3 6, 7 output
setting switch (SW5-6). (Refer to
page 38)

—53—

LC 0900

SLC 0900

— — Lossnay

trial opera­tion

« Trial operation switch on the

Lossnay circuit board (SW2-1) is set
to ON.

« Check the trial operation switch.

(Refer to page 38)

LC 3602

SLC 3602

Error code

3

blinks

LED1

(green)

—

LED2

(red)

Damper
related
error

« Damper board operation is not cor-

rect.

« Connectors for the damper unit are

not correctly connected.

« The switch (SW5-10) setting is

incorrect.

«

Remove the rod, and check whether the
damper board can be moved manually.

«

Check the connection of the lead wire
connectors and the circuit con

nector.

« Check the switch (SW5-10) setting.

(Refer to page 39)

LGH-15 to 100 types: OFF
LGH-150 and 200 types: ON

Error Cause Action

LC 4116

SLC 4116

2

blinks

—

Fan motor
operation
drive error

*1

« The Lossnay fan does not stop due

to a breakdown of the fan motor
operation drive of the circuit board.

« Fan motor error

« Check and replace the circuit board.

« Check and replace the fan motor.

LC 5101

SLC 5101

4

blinks

—

OA thermis­tor related
error

« Connectors for the thermistor are

not correctly connected.

« Check the connection of the lead

wire connectors and the circuit con­nectors.

LC 5102

SLC 5102

5

blinks

—

RA thermis­tor related
error

« Connectors for the thermistor are

not correctly connected.

« Check the connection of the lead

wire connectors and the circuit con­nectors.

——— 9

blinks

— Remote

controller
communi­cation
error

« No Lossnay unit is set to “Main”.

« Multiple transmission cables are

wired using multi core cables.

« Transmission cable and power sup-

ply cable are too close.

«

Transmission cable is not securely connected.

« The length of the transmission cable

wiring is longer than specified
(longer than 500 m).

«

Turn off the main power, and set the
Main/Sub selection switch (SW1).
(Set the first unit to “Main” and the

second and following units to “Sub”.)

« Using suitable cables, wire the

transmission cables so that they are
separated from one another.

«

Wire the transmission cable at least 5
cm away from the power supply cable.

«

Check the transmission cable connection.

« Check the length of the transmission

cable wiring.

“CLEANING”

“FILTER”

blinking

——

Filter cleaning warn­ing according to total
hours of operation

« It is time to clean the Lossnay air fil-

ter.

« After cleaning the air filter, press the

“FILTER” button of the remote con­troller two times.

“CLEANING”

“CORE”

blinking

——

Lossnay core cleaning
warning according to
total hours of operation

(PZ-60DR-E)

« It is time to clean the Lossnay core. « After cleaning the Lossnay core,

press the “FILTER” button of the
remote controller two times.

“PLEASE WAIT”

blinking

blink-

ing

—

System is starting

(PZ-60DR-E)

«

LED1 blinks at 1 second intervals during
starting operation (maximum of 45 seconds).

« This is not an error.

“HO” blinking blink-

ing

—

System is starting

(PZ-41SLB-E)

«

LED1 blinks at 1 second intervals during
starting operation (maximum of 45 seconds).

« This is not an error.

——— Lit — In delay

operation

« “DELAY OPERATION ‘ON’” is set

from PZ-60DR-E.

« Delay setting switch (SW5-1) on the

Lossnay circuit board is set to ON.

« This is not an error.

« This is not an error.

——— — L it

No M-NET con­nection information

« LED2 will be lit when M-NET is not

used.

« This is not an error.

Note: LC: “Main” Lossnay SLC: “Sub” Lossnay RC, SRC: remote controller (PZ-60DR-E or PZ-41SLB-E)

*1 The LGH-150 and 200 types do not display errors.

—54—

Checklist of error codes displayed on PZ-60DR-E (when using M-NET), PZ-52SF-E or M-NET controllers, and LED displays(Table2-2)

Error code

LED1

(green)

LED2

(red)

Error Cause Action

6600 — 6

blinks

Multiple
address error

«

There is another unit with the same
address setting.

« Check the addresses of devices in

the system.

6607

6608

—8

blinks

No ACK error
*2
No answer
error
(M-NET
communi­cation
error)

« Power is not supplied to Lossnay.
« Lossnay address was changed.
« Multiple transmission cables are

wired using multi core cables.

«

Transmission cable is not securely connected.

« The length of the transmission cable

wiring is longer than specified (longer
than maximum extension 200 m,
longer than 500 m between ends).

« Check the power supply to Lossnay.
« Check the Lossnay address.
« Using suitable cables, wire the

transmission cables so that they are
separated from one another.

«

Check the transmission cable connection.

« Check the length of the transmission

cable wiring. (See the technical
manual for details about the regula­tions.)

0900 — —

Lossnay trial
operation

«

Trial operation switch on the Lossnay
circuit board (SW2-1) is set to ON.

« Check the trial operation switch.

(Refer to page 38)

3126 8

blinks

— External

device
error

« When the TM3 6, 7 output setting

switch (SW5-6) is ON, the following
conditions are applied.

•

OA temperature is still -10°C or lower,
60 minutes after the output started

•

OA temperature is 15°C or higher with­in 15 minutes after the output started

• OA temperature is 70°C or higher

« When external devices are connect-

ed, check the external devices.

« When external devices are not con-

nected, check the TM3 6, 7 output
setting switch (SW5-6). (Refer to
page 38)

3602 3

blinks

— Damper

related
error

« Damper board operation is not cor-

rect.

« Connectors for the damper unit are

not correctly connected.

« The switch (SW5-10) setting is

incorrect.

«

Remove the rod, and check whether the
damper board can be moved manually.

«

Check the connection of the lead wire
connectors and the circuit con

nector.

« Check the switch (SW5-10) setting.

(Refer to page 39)

LGH-15 to 100 types: OFF
LGH-150 and 200 types: ON

4116 2

blinks

—

Fan motor
operation
drive error

*1

« The Lossnay fan does not stop due

to a breakdown of the fan motor
operation drive of the circuit board.

« Fan motor error

« Check and replace the circuit board.

« Check and replace the fan motor.

5101 4

blinks

—

OA thermis­tor related
error

« Connectors for the thermistor are

not correctly connected.

« Check the connection of the lead

wire connectors and the circuit con­nectors.

5102 5

blinks

—

RA thermis­tor related
error

« Connectors for the thermistor are

not correctly connected.

« Check the connection of the lead

wire connectors and the circuit con­nectors.

6602

6604

— 1 to 4

blinks

communi­cation cir­cuit section
error

« Controller where error originally

occurred is defective.

« Lossnay circuit board is defective.

« Check the controller where the error

occurred.

« Replace the circuit board.

—55—

6603 — 5

blinks

Transmissi
on cable
error

« Power is supplied to the same trans-

mission cable from two or more
power supply units.

« The power supply unit is connected

to the TB3 side of the power supply
expansion unit.

« The power supply unit is connected

to the indoor and outdoor transmis­sion cables.

« Adjust the wiring of the power sup-

ply unit.

——— — Lit No M-NET

connection
information

« The Lossnay units have not been

set to group setting (registration).

« Check the Lossnay address and

confirm that the group setting has
been made.

Error code

LED1

(green)

LED2

(red)

Error Cause Action

Note:

The “LC” characters that are displayed simultaneously with the error code indicate the Lossnay attributes in the M-NET device.

*1 The LGH-150 and 200 types do not display errors.
*2 ACK: Acknowledgement signal from other communicating devices.

—56—

6801 9

blinks

—

PZ-60DR-E
communi­cation error

«

When using multiple Lossnay units, the
Main/Sub setting has not been made
for the second unit and following units.

« Multiple transmission cables are

wired using multi core cables.

« Transmission cable and power cable

are too close.

«

Transmission cable is not securely connected.

« The length of the transmission cable

wiring is longer than specified
(longer than 500 m).

«

Turn off the main power supply and set the
Main/Sub selection switch (SW1) (first unit to
“Main”, second and following units to “Sub”).

« Using suitable cables, wire the

transmission cables so that they are
separated from one another.

«

Wire the transmission cable at least 5
cm away from the power supply cable.

«

Check the transmission cable connection.

« Check the length of the transmission

cable wiring.

“CLEANING”

“FILTER”

blinking

——

Filter cleaning warn­ing according to total
hours of operation

« It is time to clean the Lossnay air fil-

ter.

« After cleaning the air filter, press the

“FILTER” button of the remote con­troller two times.

“CLEANING”

“CORE”

blinking

——

Lossnay core cleaning
warning according to
total hours of operation

(PZ-60DR-E)

« It is time to clean the Lossnay core. « After cleaning the Lossnay core,

press the “FILTER” button of the
remote controller two times.

“PLEASE WAIT”

blinking

blink-

ing

—

System is starting

(PZ-60DR-E)

«

LED1 blinks at 1 second intervals during
starting operation (maximum of 45 seconds).

« This is not an error.

“HO” blinking blink-

ing

—

System is starting

(PZ-52SF-E)

«

LED1 blinks at 1 second intervals during
starting operation (maximum of 45 seconds).

« This is not an error.

——— Lit — In delay

operation

« “DELAY OPERATION ‘ON’” is set

from PZ-60DR-E.

« Delay setting switch (SW5-1) on the

Lossnay circuit board is set to ON.

« This is not an error.

« This is not an error.

—57—

(3)Troubleshooting 3: The remote controller operation is disabled or irregular.

Checklist for PZ-60DR-E or PZ-41SLB-E (Table 3-1)

1

No.

Nothing displays on the
LCD.

« Transmission cable is connected to the wrong

terminal block.

« No Lossnay unit is set to “Main”.

« Power is not supplied to Lossnay.
« Power that does not follow specifications is

used.

« Transmission cable is not securely connected.
« The length of the transmission cable wiring is

longer than specified (longer than 500 m).

«

Check the transmission cable con­nection. (TM4 1, 2 for the transmis­sion cable from the remote controller)

«

Turn off the main power supply and
set the Main/Sub selection switch
(SW1) (first unit to “Main”, and sec­ond and following units to “Sub”).

«

Check the power supply to Lossnay.

« Check the power supply.

«

Check the transmission cable connection.

« Check the length of the trans-

mission cable wiring.

2 Starts or stops, or the

display changes, by
itself.

« Multiple transmission cables are wired using

multi core cables.

« Transmission cable and power supply cable

are too close.

« Using suitable cables, wire the

transmission cables so that they
are separated from one another.

«

Wire the transmission cable at least 5
cm away from the power supply cable.

3 Displays an error code

that is not in the check
list.

« Liquid crystal display characters on the remote

controller are missing.

«

Poor return action of the remote controller buttons.

« Replace the remote controller.

« Replace the remote controller.

4

Cannot stop the Lossnay
with the remote controller.

(“CENTRAL” is displayed)

« Operation of the remote controller has been

prohibited by MELANS.

« “INTERLOCK MODE” is set to “oUT” (external

input given priority).

« Remote/local switching (CN32) is set to

“Remote.”

« Check the setting of the

MELANS.

« Check the interlock mode set-

ting. (Refer to page 32)

« Check the remote/local switching

(CN32). (Refer to page 35)

6 Cannot switch fan speed

with the remote con­troller.

« High/Low/Extra Low fan speed switching exter-

nal input (CN16) is ON.

« When using PZ-60DR-E, “POWER VENT

START” is set to “on” with the function selec­tion of the remote controller.

« When not using PZ-60DR-E, the function

selection switch for “Power supply/exhaust
when operation starts” (SW2-3) on the
Lossnay circuit board is set to ON.

« When using PZ-60DR-E, the supply fan speed

setting and the exhaust fan speed setting are
set to “L” with the function selection of the
remote controller.

«

When not using PZ-60DR-E, the function selection
switches for “Supply fan fixed at Low speed”, and
“Exhaust fan fixed at Low speed” (SW2-4, SW2-5)
on the Lossnay circuit board are set to ON.

«

In a mixture of the LGH-15 to 100 types and the
LGH-150 and 200 types, the 150 and 200 types
are set to “Main”. (Extra Low fan speed operation
is not available.)

«

Check the High/Low/Extra Low
fan speed switching input (CN16).
(Refer to page 33 and 34)

« Check the setting of “power sup-

ply/exhaust when operation
starts” with the PZ-60DR-E func­tion selection. (Refer to page 41)

« Check the function selection

switch (SW2-3).
(Refer to page 38)

«

Check the supply fan speed set­ting and the exhaust fan speed
setting with the PZ-60DR-E func­tion selection. (Refer to page 41)

« Check the function selection

switches (SW2-4,

SW2-

5).

(Refer to page 38)

« Set the LGH-15 to 100 types to

“Main” and the LGH-150 and
200 types to “Sub”.
(Refer to page 39)

Error Cause Action

5 Cannot stop the Lossnay

with PZ-60DR-E.

(“24HR

VENTILATION” is displayed).

« 24-hour ventilation is set to “on” with the PZ-

60DR-E function selection.

« Check the 24-hour ventilation

setting with the PZ-60DR-E func­tion selection. (Refer to page 40)

—58—

8 When the main power

supply is turned on, the
remote controller display
will indicate and Lossnay
will start.

« When using PZ-60DR-E, “RECOVERY SET-

TING” is set to “on” or “AUTo” with the function
selection of the remote controller.

« When not using PZ-60DR-E, the function

selection switch (SW2-6 or SW5-4) on the
Lossnay circuit board is set to ON.

« When using PZ-41SLB-E, the main power sup-

ply was turned off during operation.

« Check the power supply

ON/OFF/AUTO setting with the
PZ-60DR-E function selection.
(Refer to page 41)

« Check the function selection

switch (SW2-6 or SW5-4). (Refer
to page 38)

«

When using PZ-41SLB-E, the
operation prior to switching off the
power will return when the main
power supply is turned on. Switch
off the main power supply approx­imately 10 seconds after Lossnay
stop with the remote controller

.

7

No.

The ventilation mode
cannot be switched with
the remote controller.

« The bypass ventilation switching external input

(CN16) is set to ON.

« Check the bypass ventilation

switching input (CN16).
(Refer to page 35)

9 There is no power failure

automatic return.

« When using PZ-60DR-E, “RECOVERY SET-

TING” is set to “oFF” with the function selection
of the remote controller.

« When not using PZ-60DR-E, the function

selection switch (SW5-4) on the Lossnay cir­cuit board is set to ON.

«

Check the power supply

ON/OFF/AUTO
setting with the PZ-60DR-E function
selection. (Refer to page 41)

«

Check the function selection
switch (SW5-4) on the Lossnay
circuit board. (Refer to page 38)

12

When PZ-60DR-E is
used, Lossnay does not
operate in accordance
with the timer setting.

« When a different timer has been set with each

remote controller in a two remote controller
system, the resultant operation will not be in
accordance with the setting.

« Perform the timer setting with

one remote controller only, and
use the other remote controller
as “( Timer off indicator)”.

Error Cause Action

10 The fan does not stop

even though the remote
controller is set to stop.

« Operation monitor with delay function is set to

ON. (Function selection switch SW2-8 or SW5­6 is set to ON)

« Check the function selection

switch (SW2-8 or SW5-6).
(Refer to page 38)

Note: When two remote controllers are used, the combination of the PZ-60DR-E and PZ-41SLB-E cannot be used.

13

“CLEANING” “FILTER” /
“CLEANING” “CORE” (PZ­60DR-E), or “FILTER” (PZ­41SLB-E) continues to
blink and the display can­not be reset.

« The display is reset incorrectly.

« The remote controller has broken down.

« During Lossnay operation, press

the “FILTER” button two times
(within 3 seconds).

« Replace the remote controller.

11 When using PZ-60DR-E,

Lossnay starts or stops
operating, or the fan
speed changes, by itself.

« Timer function has been set with PZ-60DR-E.

«

“NIGHT PURGE” is set to “on” with PZ-60DR-E.

« Check the timer function setting

with PZ-60DR-E.

« Check the night purge setting of

PZ-60DR-E. If enabled, this is
not an error. (Refer to page 41)

Checklist for PZ-52SF-E (Table 3-2)

1

No.

Nothing displays on the
LCD.

« Transmission cable is connected to the wrong

terminal block.

«

There is no power supply unit (for Lossnay only systems).

« The power supply unit is not turned on.
« Transmission cable is not securely connected.
«

Wiring length of the transmission cable from the
power supply unit or the outdoor unit is longer
than specified (maximum extension 200 m).

« Check the transmission cable

connection (TB5

A , B for M-

NET transmission cables).

« Install the power supply unit.
«

Check the power to the power supply unit.

«

Check the transmission cable connection.

« Check the length of the trans-

mission cable wiring. (See the
technical manual for details
about the regulations.)

Error Cause Action

« After supplying power to the sys-

tem, “HO” blinks for a maximum
of about 10 minutes.
(This is not an error.)

«

Perform the group setting (registra­tion). If using MELANS, register
with the MELANS. If there is only
PZ-52SF-E, register with it.

« Check the group setting with the

MELANS.

« Check the power supply to

Lossnay.

« Check the power supply.

« Check the transmission cable

connection (TB5

A , B for M-

NET transmission cables).

« Check the Lossnay address.
«

If the circuit board has been
replaced, perform the group set­tings again.

« Check the length of the trans-

mission cable wiring. (See the
technical manual for details
about the regulations.)

2 Continues to display

“HO” and does not start.

« It is less than 10 minutes since the power was

supplied to the system.

« Group setting (registration) has not been per-

formed.

« The PZ-52SF-E address has not been regis-

tered in the group setting by MELANS.

« Power supply to the Lossnay is not turned on.

« Power that does not follow specifications is

used.

« Transmission cable is connected to the wrong

terminal of the Lossnay unit.

« Lossnay address was changed.
« Lossnay circuit board was replaced.

« The length of the transmission cable wiring is

longer than specified (longer than maximum
extension 200 m, longer than 500 m between
ends).

3 Cannot register the

Lossnay with

PZ-52SF-E

or MELANS.

« Power is not supplied to Lossnay.

« Power that does not follow specifications is

used.

« Transmission cable to the Lossnay is not con-

nected.

« Transmission cable is connected to the wrong

terminal of the Lossnay unit.

« Lossnay address was changed.
« The length of the transmission cable wiring is

longer than specified (longer than maximum
extension 200 m, longer than 500 m between
ends).

« Check the power supply to

Lossnay.

« Check the power supply.

« Check the transmission cable

connection.

« Check the transmission cable

connection (TB5

A , B for M-

NET transmission cables).

« Check the Lossnay address.
« Check the length of the trans-

mission cable wiring. (See the
technical manual for details
about the regulations.)

—59—

No.

Error Cause Action

4

Starts or stops, or the dis­play changes, by itself.

« The Lossnay unit is set for interlock operation

with City Multi.

« Cancel the interlock mode set-

ting.

5

Displays an error code
that is not in the checklist.

« Liquid crystal display characters on the remote

controller are missing.

« Replace the remote controller.

6

Cannot stop Lossnay with
the remote controller.
(“CENTRAL” is displayed)

« Operation of the remote controller has been

prohibited by MELANS.

« “INTERLOCK MODE” is set to “oUT” (external

input given priority).

« Remote/local switching (CN32) is set to

“Remote.”

« Check the settings of the

MELANS.

« Check the interlock mode set-

ting. (Refer to page 32)

«

Check the remote/local switching
(CN32). (Refer to page 35)

Note: PZ-60DR-E and PZ-52SF-E cannot be used in the same group.

(4)Troubleshooting 4: The Lossnay operation is disabled or irregular.

Lossnay checklist (Table 4)

1

No.

The fan does not operate.

The fan does not operate
normally.

« Connectors for the fan or connectors for the

Lossnay circuit board section are not correctly
connected.

« Power is not supplied to the Lossnay, or power

that does not follow specifications is used.

« When using M-NET, Lossnay group setting is

not performed. (LED2 lights)

« Check the lead wire connectors

and the Lossnay circuit board
section connectors.

« Check the power supply.

« Check the Lossnay address and

the group setting. (LED2 lights
when not using M-NET. This is
not an error.)

3 Fan will not stop. « Trial operation switch (SW2-1) on the Lossnay

circuit board is set to ON.

« The TM4 9

,

0 output setting switch (SW2-8)

or the TM3 6

,

7 output setting switch (SW5-

6) on the Lossnay circuit board is set to ON.

« Check the trial operation switch

(SW2-1). (Refer to page 36)

« When SW2-8 or SW5-6 is ON,

the fan will stop 3 minutes after
OFF operation of the remote
controller. (Refer to page 27)

2 Interlocked operation

with external devices
(air conditioners) does
not occur.

« The type of external signal does not match the

connected terminal block (charged, uncharged,
Mr. Slim signal).

« The type of external signal does not match the

pulse input setting (level signal, pulse signal).

« The external device signal is not being input.
« The external device and signal cable wiring is

longer than specified.

12 V DC, 24 V DC:

Longer than limitations

of external device
Uncharged a-contact: Longer than 500 m
Mr. Slim signal: Longer than 500 m

« The Delay operation is set with the function

selection of PZ-60DR-E or PZ-41SLB-E, or the
function selection switch (SW5-1) on the
Lossnay circuit board.

«

The ON Interlocked or OFF Interlocked is set
with the function selection of PZ-60DR-E or PZ­41SLB-E, or the function selection switches
(SW5-7, SW5-8) on the Lossnay circuit board.

« When using multiple Lossnay units, the exter-

nal control input signal is connected to a “Sub”
Lossnay.

« In a group of multiple Lossnay units with M-

NET, the external control input signal is con­nected to a Lossnay unit other than the one
with the smallest address.

« There is a communication error with the

remote controller or MELANS.

« Check the external signal type

and the external control input ter­minal (TM2) connection.

« <When using PZ-60DR-E>

Check the external signal type
and the pulse input setting from
the function selection.
<When not using PZ-60DR-E>
Check the external signal type
and

the pulse input setting
switch (SW2-2) on the Lossnay
circuit board. (Refer to page 31).

« Check the external device.
« Check the wiring length of the

signal cable.

« Check the delay operation setting

of PZ-60DR-E or PZ41SLB-E,
and the function selection switch
(SW5-1) on the Lossnay circuit
board. (Refer to page 32)

« Check the interlock mode setting

of PZ-60DR-E, PZ41SLB-E, or
the function selection switches
(SW5-7, SW5-8) on the Lossnay
circuit board. (Refer to page 32)

« Connect the external control

input signal to the “Main”
Lossnay.

« Connect the external control

input signal to the Lossnay unit
with the smallest address in the
group.

« Check the remote controller or

MELANS.

Error Cause Action

—60—

4 Lossnay operates when

the main power is turned
on.

« When using PZ-60DR-E, “RECOVERY SET-

TING” is set to “on” or “AUTo” with the function
selection of the remote controller.

« When not using PZ-60DR-E, the function

selection switches (SW2-6 or SW5-4) on the
Lossnay circuit board are set to ON.

« When using PZ-41SLB-E, the main power sup-

ply was turned off during operation.

«

Check the power supply
ON/OFF/AUTO setting with the
PZ-60DR-E function selection.
(Refer to page 41)

« Check the function selection

switches (SW2-6 or SW5-4)
(Refer to page 38)

«

When using PZ-41SLB-E, the
operation prior to switching off the
power will return when the main
power supply is turned on. Switch
off the main power supply approx­imately 10 seconds after Lossnay
stop with the remote controller.

No.

5 Takes in air from out-

doors during interlocked
operation with a Mr. Slim
or a City Multi, but supply
air fan does not stop
when defrosting.

« The outdoor air intake setting of the PAC

indoor unit or the PAC remote controller is not
enabled.

« Set the outdoor air intake to

“ON” with the indoor unit or the
PAC remote controller.

6 The supply air fan and

exhaust air fan both peri­odically stop operating.

« In a system that Lossnay has duct connections

and interlocked with Mr. Slim or City Multi
indoor units, when “EA SETTING DEFROST”
is set to “oFF” with PZ-60DR-E, or when the
function selection switch (SW5-3) on the
Lossnay circuit board is ON, the fans will stop
during air conditioner defrosting.

« Check the exhaust operation

setting for air conditioner defrost­ing with the PZ-60DR-E function
selection, or the function selec­tion switch (SW5-3). (Refer to
page 38 and 42)

7 Fan speed will not

change.

« High/Low/Extra Low fan speed switching exter-

nal input (CN16) is ON.

« When using PZ-60DR-E, “POWER VENT

START” is set to “on” with the function selec­tion of the remote controller.

« When not using PZ-60DR-E, the function

selection switch for “Power supply/exhaust
when operation starts” (SW2-3) on the
Lossnay circuit board is set to ON.

« When using PZ-60DR-E, the supply fan speed

setting and the exhaust fan speed setting are
set to “L” with the function selection of the
remote controller.

«

When not using PZ-60DR-E, the function selection
switches for “Supply fan fixed at Low speed”, and
“Exhaust fan fixed at Low speed” (SW2-4, SW2-5)
on the Lossnay circuit board are set to ON.

« Trial operation switch (SW2-1) on the Lossnay

circuit board is set to ON.

«

In a mixture of the LGH-15 to 100 types and the
LGH-150 and 200 types, the 150 and 200 types
are set to “Main”. (Extra Low fan speed operation
is not available.)

«

Check the High/Low/Extra Low
fan speed switching input (CN16).
(Refer to page 33 and 34)

« Check the setting of “power sup-

ply/exhaust when operation
starts” with the PZ-60DR-E func­tion selection. (Refer to page 41)

« Check the function selection

switch (SW2-3).
(Refer to page 38)

«

Check the supply fan speed set­ting and the exhaust fan speed
setting with the PZ-60DR-E func­tion selection. (Refer to page 41)

« Check the function selection

switches (SW2-4,

SW2-

5).

(Refer to page 38)

« Check the trial operation switch

(SW2-1). (Refer to page 38)

« Set the LGH-15 to 100 types to

“Main” and the LGH-150 and
200 types to “Sub”.
(Refer to page 39)

Error Cause Action

—61—

8 The damper board does

not operate.

« The outdoor air temperature is 8°C or lower.
« The bypass ventilation switching external input

(CN16) is set to ON.

« During the night purge operation

« Damper board operation is not correct.

« Connectors for the thermistor are not correctly

connected.

« Connectors for the damper are not correctly

connected.

« The trial operation switch (SW2-1) on the

Lossnay circuit board is turned ON.

«

Check the outdoor air temperature.

« Check the bypass ventilation

switching input (CN16). (Refer to
page 35)

« Check the display of the PZ-

60DR-E. (“ ” is displayed)

« Remove the rod, and check

whether the damper board can
be moved manually.

« Check the connections of the

lead wire connectors and the cir­cuit connectors.

« Check the connections of the

lead wire connectors and the cir­cuit connectors.

« Check the trial operation switch

(SW2-1) on the Lossnay circuit
board. (Refer to page 38)

—62—

9 Operation monitor output

is OFF during operation.

« When the “OPERATION MONITOR” is set to

“2” with the PZ-60DR-E function selection, or
when the function selection switch (SW5-2) on
the Lossnay circuit board is ON, because there
is operation monitor output interlocked with the
air supply fan, the operation monitor output will
turn OFF when the outdoor temperature is ­10°C or less, or at the time of air conditioner
defrosting.

« Check the operation monitor out-

put setting with the PZ-60DR-E
function selection, or the function
selection switch (SW5-2) on the
Lossnay circuit board.
(Refer to page 38 and 41)

11 Night purge operation

does not work even
though Night purge oper­ation is set.

• The night purge conditions have not been sat­isfied.

• Lossnay has been started or stopped during
the display of “ (Night purge)”.

• Night purge operation will not be performed
when “CENTRAL” is displayed.

• Check whether these are the
night purge operation conditions.
(Refer to page 36 and 37)

• When Lossnay has been started
or stopped during the display of
“ ”, the night purge operation
will not be performed until 1:00 of
the next day.

10 Delay operation does not

work even though Delay
operation is set.

« Pulse input setting is set to ON. « <When using PZ-60DR-E>

Check the pulse input setting
from the function selection.
(Refer to page 42)
<When not using PZ-60DR-E>
Check

the setting of the pulse
input switch (SW2-2) on the
Lossnay circuit board.
(Refer to page 38).

No.

Error Cause Action

12 The fan does not stop

even though the remote
controller is set to stop.

« Operation monitor with delay function is set.

(Function selection switch (SW2-8 or SW5-6) is

set to ON)

« Check the setting of the function

selection switch (SW2-8 or SW5-

6). The fan will stop 3 minutes
after the remote controller OFF
operation. (Refer to page 27)

13 The damper board does

not operate correctly.

« The switch (SW5-10) setting is incorrect. «

Check the switch (SW5-10) setting.

LGH-15 to 100 types: OFF
LGH-150 and 200 types: ON

(Refer to page 39)

—63—

No.

1 Immediately after turning on

the main power, LED1 (green)
on the Lossnay circuit board
blinks.

LED1 blinks at 1 second intervals during starting operation (maximum of 45
seconds).

Page

24

Error Cause

Reference

It is normal in the following cases.

2 LED1 (green) on the Lossnay

circuit board is lit.

LED1 will be lit during the delay operation when the delay operation setting
is enabled.

Page

32

3 LED2 (red) on the Lossnay

circuit board is lit.

LED2 will be lit when M-NET is not used. Page

54

4 When PZ-60DR-E is used, the

operation will not be in accor­dance with the setting of the
function selection switch on
the Lossnay circuit board.

As for the Lossnay function selection, the function selection setting by PZ­60DR-E will have priority.

Page

39- 42

5 When PZ-60DR-E is used,

button operations of the
remote controller will result in
a display of “NOT AVAIL­ABLE”.

“NOT AVAILABLE” will be displayed in the following circumstances:

• When the ““Extra Low” fan speed” button has been operated with the
LGH-150 or 200 type connected.

• When the “timer menu” button or the “timer on/off” button has been oper­ated with timer function set to “TIMER MODE OFF”.

• When the operation lock setting (i.e., pressing “FILTER” and “ON/OFF”
buttons at the same time) has been performed with the “LOCKING FUNC­TION” is set to “oFF”.

—

6 Button operations are not

accepted immediately when
the function selection mode or
the maintenance mode is
entered from the normal dis­play of PZ-60DR-E, or when
returning to the normal display
from the function selection
mode or the maintenance
mode.

Button operations may not be accepted immediately depending on commu­nication processing.

When an operation has not been accepted, perform the operation after
several seconds have passed.

—

7 “24 HR VENTILATION” is not

displayed on the PZ-60DR-E
function selection.

This is not displayed because the LGH-150 and 200 types do not have a
24 hour ventilation function.

—

8 When two PZ-60DR-E remote

controllers are used, “24HR
VENTILATION”, “LOSSNAY
FUNCTION”, and “INTER­LOCK SETTING” of the func­tion selection mode can be set
only from one of the remote
controllers.

When two remote controllers are used, “24 HR VENTILATION”, “LOSNNAY
FUNCTION”, and “INTERLOCK SETTING” can be set only with the “Main”
remote controller. The “Main” and “Sub” remote controller will be deter­mined automatically by communication when the main unit power is turned
on. The remote controller on which “24HR VENTILATION”, “LOSSNAY
FUNCTION”, and “INTERLOCK SETTING” are displayed is the “Main”
remote controller.

Page

39

9 Even when the clock use set-

ting is set to “on” with PZ­60DR-E, the day of the week
and time are not displayed.

When “SIMPLE TIMER” has been set with the timer function setting, the
day of the week and time are not displayed.

Page

40

10 When two PZ-60DR-E remote

controllers are used, the dis­play of the day of the week
and time differs.

When a remote controller has been replaced or added, the day of the week
and time display will not match; therefore, perform a day of the week and
time setting with either one of the remote controllers.

—

No.

11 When PZ-60DR-E is used, the

timer operation does not work.

Timer operation does not work in the following circumstances:

• When the timer function is set to OFF.

• During the day of the week and time setting / During function selection /
During timer setting

• When “CENTRAL” is displayed.

—

Error Cause

Reference

12 When PZ-41SLB-E is used,

the operation will not be in
accordance with the setting of
the function selection switch
on the Lossnay circuit board.

The settings will be disabled for switches (SW2-6, SW5-1, SW5-4, SW5-5,
SW5-7, and SW5-8).

Page

38

13 When PZ-60DR-E is used,

“ (“Locked” indica­tor)” is displayed, and the
remote controller cannot be
operated.

In the following circumstances “ (“Locked” indicator)” is displayed,
and the applicable function button cannot be operated.

• The operation lock is enabled. (Buttons other than the “ON/OFF” button,
or all buttons)

• When operating with the High / Low / Extra Low fan speed switching input
(“Fan Speed Adjustment” button, and “Extra Low fan speed” button)

• When operating with the bypass ventilation switching input. (“Function
selector” button)

• During the night purge operation. (“Function selector” button)

• When two remote controllers are used, one of the remote controllers is
set to the function selection mode or the maintenance mode. (All buttons)

Page

40

33, 34

35

36, 37

40- 43

15 The Lossnay unit starts by

itself at night.

When the night purge setting is set to “on”, the night purge operation will be
performed at nighttime.

Page

36, 37

16 Night purge operation does

not work even though Night
purge operation is set.

The night purge operation will not be performed in the following circum­stances:

• The night purge conditions have not been satisfied.

• Lossnay has been started or stopped during the display of “ (Night
purge)”.

• Night purge operation will not be performed when “CENTRAL” is dis­played.

Page

36, 37

17 Damper board does not oper-

ate.

When switching the ventilation mode with the remote controller, a maxi­mum delay of 30 seconds will be generated depending on the timing.

Page

29

18 Delay operation does not work

even though Delay operation
is set.

• Delay operation will not start until 2 hours after the Lossnay stopped.

• When the pulse input setting is set to “on”, delay operation will not start.

• When using PZ-60DR-E and PZ-41SLB-E, operation will be according to
the setting of the remote controller.

Page

32

19 Operation monitor output will

not be output until several
seconds after the fan started
operation.

When the TM4

9, 0 output setting is set to operation monitor with delay

function 1 (SW2-8 is ON), the operation monitor will be output 10 seconds
after the fan started operation.

Page

33

20 After operation has been

stopped with the remote con­troller, the fan continues to run
for a while.

When the TM4 9, 0 output setting is set to operation monitor with delay
function 1 (SW2-8 is ON), or when the TM3 6, 7 output setting is set to
operation monitor with delay function 2 (SW5-6 is ON), the fan will stop 3
minutes after stop with the remote controller.

Page

27

—64—

14 The supply air fan periodically

stops operating.

• When the outdoor temperature is -10°C or lower, the fan is periodically
stopped for approximately 10 minutes to prevent freezing of the Lossnay
core. (Cold region specifications)

•

When the Lossnay unit has duct connections and interlocked with Mr. Slim
or City Multi indoor units, the fan will stop during air conditioner defrosting.

Page

27

Temperatures and thermistor resistance table

Temperature

(°C)

Resistance

value (kΩ)

Temperature

(°C)

Resistance

value (kΩ)

Temperature

(°C)

Resistance

value (kΩ)

Temperature

(°C)

Resistance

value (kΩ)

Temperature

(°C)

Resistance

value (kΩ)

-30 53.9 - ∞ -7 18.0 8 9.5 23 5.4 38 3.1

. . .

. . .

. . .

. . .

-6 17.2 9 9.2 24 5.1 39 3.1

-20 32.8 -5 16.5 10 8.8 25 5.0 40 3.0

-19 31.2 -4 15.7 11 8.5 26 4.8 41 2.8

-18 29.8 -3 15.1 12 8.1 27 4.7 42 2.7

-17 28.4 -2 14.5 13 7.8 28 4.5 43 2.7

-16 27.1 -1 13.8 14 7.6 29 4.3 44 2.6

-15 25.8 0 13.3 15 7.3 30 4.2 45 2.5

-14 24.7 1 12.8 16 7.0 31 4.0 46 2.4

-13 23.6 2 12.2 17 6.7 32 3.9 47 2.3

-12 22.5 3 11.7 18 6.5 33 3.7 48 2.2

-11 21.5 4 11.2 19 6.3 34 3.6 49 2.2

-10 20.6 5 10.7 20 6.0 35 3.5 50 2.1

-9 19.7 6 10.3 21 5.8 36 3.4

-8 18.8 7 10.0 22 5.6 37 3.2 90 0 - 0.7

—65—

8. Disassembly and assembly

(2) Fan parts

1

Pull out the hinge, and open the maintenance cover.

Maintenance cover

2

Draw the Lossnay cores (with filters) from the unit.

Lossnay core

—66—

Filter

 Work precautions

• When touching the electric components such as circuit boards and fan motors, do not touch the components
for more than 5 minutes after power-off, and then start working.

• Before replacing parts, repair troubled sections according to the instructions described in the troubleshooting.

• When servicing, always keep proper footing.

• When servicing, make sure that the power cord is pulled out of the outlet, or the power supply isolator is off if
no mains connector is built in the product, so as no electrical shock or injury to occur. Pay sufficient attention
when working on the product.

• Always connect the power wire properly.

• After completing repairs, confirm that the main unit operates normally.

 Part names used in the following text correspond to those listed in the parts catalog.

The following pictures show LGH-50RX5-E.

(1) Turning power off

1 Shut down the unit.
2 Turn off the power supply isolator on the distribution board.

Hinge

Core guide

3

Remove the core guide.

Unscrew the fixing screws

(two special screws 4

x 22.5, indicated by ).

—67—

4

Slide the connector covers (with the connector)
toward the Lossnay core side, and then take them off
from the unit.

5

Remove the connectors.

Connector cover

Connector

—68—

Motor (for supply air)

Motor fix plate

7

Unscrew the screws (four PTT screws

5 x 10, indi-

cated by

) for the motor fix plate (SA side).

(Remove the EA side motor in the same way .)

Separator

Instructions:

 When reassembling the unit, assemble it in the reverse order of disassembly.
 Always make sure that the unit works properly when reassembled.

 When assembling

6

Take off the separator.

—69—

Please note the following when using the parts catalog.

1. When ordering parts, always indicate the part number, part name, and the number of
parts required.

2. Parts are not always available, and it may take time for you to receive them.

3. There may be specification improvements.

4. Specifications are correct as of January 2009.

5. Parts marked are critical for safety. To maintain safety and performance, always
replace these parts with the parts prescribed.

6. The numbers that are circled in the exploded view are the same as the reference
number for the part being indicated.

Description of screw abbreviations

Screw

4 × 16

Abbreviation

PC screw
PRC screw
PP screw
SW · PP screw
PPT screw
PCT screw
PTT screw
PT screw
SET screw
SQ · SET screw
P · SET screw
PMT screw
HS · SET screw
P · R · W screw
P · C · W screw
P · R · C · W screw
R · W screw
PW · PP screw
SW-PW · PP screw

Description

Cross recess flat head machine screw
Cross recess oval head machine screw
Cross recess pan head machine screw
Cross recess pan head screw with spring washer
Cross recess tapping screw
Cross recess flat head tapping screw
Cross recess truss head tapping screw
Cross recess truss head machine screw
Slotted head stop screw
Square head stop screw
Pan head stop screw
Primer truss head screw
Hexagon head stop screw
Cross recess round wood screw
Cross recess flat head wood screw
Cross recess round and flat wood screw
Slotted round wood screw
Cross recess pan head screw with small washer
Cross recess pan head machine screw with spring washer and flat washer

Screw diameter Length

9. Parts catalog

Model LGH-15RX5-E

No. Parts No. Name of part Critical Remarks Price

1. R50 541 045 Special screw 2

2. X50 039 710 Filter stopper 8

3. R50 541 383 Core guide(left) 1

4. H00 000 244 PT screw 6×12 8

5. R50 541 380 Hanger 4

6. R50 541 717 Cover 2

7. Y50 115 619 Flange 4

8. H00 000 487 PTT screw 4×8 46

9. R50 541 487 Maintenance cover 1

10. X50 039 717 Filter 4

11. R50 541 718 Lossnay core 2

12. R50 541 384 Core guide(right) 1

13. R50 466 344 Hinge 1

14. Y50 029 712 Fix piece 1

Q'ty
pcs/unit

for safety

With filter stopper

７０

—71—

LGH-15RX5-E

7

8 shows accessory parts.

8

8

5

7

6

8

5

4

8

5

4

3

2

2

8

8

7

1

8

8

10

13

2

1

2

12

14

5

7

11

10

9

Model LGH-15RX5-E

No. Parts No. Name of part Critical Remarks Price

21. R50 331 067 Special nut(8) 2 Left-handed

22. M34 398 077 Tab washer 2

23. R50 541 480 Centrifugal fan 2 φ180

24. R50 028 465 Special washer 2 φ8.1

25. Y50 115 454 Motor 1

26. R50 214 708 Motor plate 4

27. H00 000 332 PTT screw 4×10 13

28. R50 541 712 Motor fix plate 2

29. D43 008 223 Cord clamper 2

30. Y50 115 453 Motor 1

31. H00 312 007 PTT screw 4×6 16

32. M45 649 226 Cord bush 2

33. Y50 115 709 Connector cover 1

34. D41 006 363 Cord band 1

35. Y50 115 710 Connector plate 1

36. R50 541 488 Separator 2

Q'ty
pcs/unit

for safety



７２

—73—

21

LGH-15RX5-E

22

23

24

25

26

27

28

29

32

33

27

34

31

31

26

31

36

32

36

28

29

27

27

26

31

26

31

27

30

24

23

22

21

35

Model LGH-15RX5-E

No. Parts No. Name of part Critical Remarks Price

41. R50 533 693 Fix plate 1

42. Y50 115 708 Damper motor cover 1

43. Y50 115 225 Bush 1

44. R50 541 715 Damper support 1

45. M31 234 089 Special bush 2

46. R50 095 156 Pull spring 1

47. R50 213 713 Damper 1

48. R50 351 225 Cord bush 1

49. Y50 061 260 Damper motor 1 AC220･240V

50. R50 054 225 Bush 1

51. Y50 115 150 Rod 1

52. Y50 115 705 Control cover 1

53. Y50 115 368 Wiring diagram 1

54. Y50 115 287 Capacitor 2 1.5μF･440VAC

55. H00 003 005 PPT screw 3×8 1

56. Y50 115 171 Circuit board 1 LG-X3-E

57. H00 013 076 Lock washer(4) 2

58. Y50 115 216 Transformer 1 AC230V

59. H00 011 008 PT screw 4×8(BS) 1

60. M45 017 228 Cord band 1

61. K83 170 228 Cord band 2

62. R50 546 705 Circuit fix plate 1

63. R50 476 225 Bush 3

64. H00 000 003 PP screw 4×8 2

65. H00 154 005 PPT screw 4×12 1

66. M13 100 242 Terminal block 1 3P

67. Y50 115 712 Terminal block fix plate 1

68. Y55 001 223 Cord clip 1

69. Y50 115 711 Side plate 1

70. K82 163 225 Bush 2

71. R50 546 167 Thermistor 1

72. Y50 047 231 Connection cable 1 SLIM-LOSSNAY

Q'ty
pcs/unit

for safety



７４

—75—

43

8 shows accessory parts.

LGH-15RX5-E

44

45

46

41

42

47

31

48

8

45

63

62

51

61

60

50

8

49

58

59

57

8

8

57

52

8

8

56

55

64

8

54

67

53

66

65

64

8

8

54

8

70

8

72

8

71

70

8

68

69

Model LGH-25RX5-E

No. Parts No. Name of part Critical Remarks Price

1. R50 541 045 Special screw 2

2. X50 039 710 Filter stopper 8

3. R50 541 383 Core guide(left) 1

4. H00 000 244 PT screw 6×12 8

5. R50 541 380 Hanger 4

6. R50 541 717 Cover 2

7. Y50 075 609 Flange 4

8. H00 000 487 PTT screw 4×8 46

9. R50 541 487 Maintenance cover 1

10. X50 039 717 Filter 4

11. R50 541 718 Lossnay core 2

12. R50 541 384 Core guide(right) 1

13. R50 466 344 Hinge 1

14. Y50 029 712 Fix piece 1

Q'ty
pcs/unit

for safety

With filter stopper



７６

—77—

7

LGH-25RX5-E

8 shows accessory parts.

8

8

5

7

6

8

5

4

8

5

4

3

2

2

8

8

7

1

8

8

10

13

2

1

2

12

14

5

7

11

10

9

Model LGH-25RX5-E

No. Parts No. Name of part Critical Remarks Price

21. R50 331 067 Special nut(8) 2 Left-handed

22. M34 398 077 Tab washer 2

23. R50 541 480 Centrifugal fan 2 φ180

24. R50 028 465 Special washer 2 φ8.1

25. Y50 115 456 Motor 1

26. R50 214 708 Motor plate 4

27. H00 000 332 PTT screw 4×10 13

28. R50 541 712 Motor fix plate 2

29. D43 008 223 Cord clamper 2

30. Y50 115 455 Motor 1

31. H00 312 007 PTT screw 4×6 14

32. M45 649 226 Cord bush 2

33. Y50 115 709 Connector cover 1

34. D41 006 363 Cord band 1

35. Y50 115 710 Connector plate 1

36. R50 541 488 Separator 2

Q'ty
pcs/unit

for safety

７８

—79—

21

LGH-25RX5-E

22

23

24

25

26

27

28

29

32

33

27

34

31

31

26

31

36

32

36

28

29

27

27

26

31

26

31

27

30

24

23

22

21

35

Model LGH-25RX5-E

No. Parts No. Name of part Critical Remarks Price

41. R50 533 693 Fix plate 1

42. Y50 115 708 Damper motor cover 1

43. Y50 115 225 Bush 1

44. R50 541 715 Damper support 1

45. M31 234 089 Special bush 2

46. R50 095 156 Pull spring 1

47. R50 213 713 Damper 1

48. R50 351 225 Cord bush 1

49. Y50 061 260 Damper motor 1 AC220･240V

50. R50 054 225 Bush 1

51. Y50 115 150 Rod 1

52. Y50 115 705 Control cover 1

53. Y50 115 368 Wiring diagram 1

54. Y50 115 288 Capacitor 2 2.0μF･440VAC

55. H00 003 005 PPT screw 3×8 1

56. Y50 115 171 Circuit board 1 LG-X3-E

57. H00 013 076 Lock washer(4) 2

58. Y50 115 216 Transformer 1 AC230V

59. H00 011 008 PT screw 4×8(BS) 1

60. M45 017 228 Cord band 1

61. K83 170 228 Cord band 2

62. R50 546 705 Circuit fix plate 1

63. R50 476 225 Bush 3

64. H00 000 003 PP screw 4×8 2

65. H00 154 005 PPT screw 4×12 1

66. M13 100 242 Terminal block 1 3P

67. Y50 115 712 Terminal block fix plate 1

68. Y55 001 223 Cord clip 1

69. Y50 115 711 Side plate 1

70. K82 163 225 Bush 2

71. R50 546 167 Thermistor 1

72. Y50 047 231 Connection cable 1 SLIM-LOSSNAY

Q'ty
pcs/unit

for safety

８０

—81—

43

LGH-25RX5-E

8 shows accessory parts.

44

45

46

41

42

47

31

48

8

45

63

62

51

61

60

50

8

49

58

59

57

8

8

57

56

55

64

8

54

53

67

66

65

52

8

8

54

8

8

8

64

8

70

72

8

71

70

8

68

69

Model LGH-35RX5-E

No. Parts No. Name of part Critical Remarks Price

1. R50 541 045 Special screw 2

2. R50 521 710 Filter stopper 8

3. R50 542 381 Core guide(left) 1

4. H00 000 244 PT screw 6×12 8

5. R50 541 380 Hanger 4

6. R50 541 717 Cover 2

7. Y50 075 609 Flange 4

8. H00 000 487 PTT screw 4×8 48

9. R50 542 486 Maintenance cover 1

10. Y50 116 717 Filter 4

11. R50 542 710 Lossnay core 2

12. R50 542 382 Core guide(right) 1

13. R50 466 344 Hinge 1

14. Y50 029 712 Fix piece 1

Q'ty
pcs/unit

for safety

With filter stopper

８２

—83—

7

LGH-35RX5-E

8 shows accessory parts.

8

8

5

7

6

5

4

8

8

5

4

3

2

2

8

1

10

8

8

14

8

7

7

13

2

5

12

1

2

11

10

9

Model LGH-35RX5-E

No. Parts No. Name of part Critical Remarks Price

21. R50 331 067 Special nut(8) 2 Left-handed

22. M34 398 077 Tab washer 2

23. R50 542 480 Centrifugal fan 2 φ220

24. R50 542 707 Fan base 2

25. M34 706 465 Special washer 2 φ10

26. Y50 116 453 Motor 2

27. Y50 116 712 Motor fix plate 2

28. H00 189 007 PTT screw 5×10 8

29. D43 008 223 Cord clamper 2

30. M45 649 226 Cord bush 4

31. Y50 115 709 Connector cover 2

32. H00 312 007 PTT screw 4×6 15

33. Y50 115 710 Connector plate 2

34. M45 017 228 Cord band 2

35. R50 542 487 Separator 2

36. H00 194 008 PT screw 5×20 8

37. Y50 116 080 Special washer 8

38. H00 012 050 Nut(5) 8

Q'ty
pcs/unit

for safety



８４

—85—

21

LGH-35RX5-E

34

22

36

35

23

37

24

25

38

26

32

31

30

30

27

28

8

27

29

33

24

23

28

38

8

26

25

37

36

31

30

32

33

30

35

29

22

21

Model LGH-35RX5-E

No. Parts No. Name of part Critical Remarks Price

41. R50 533 693 Fix plate 1

42. Y50 115 708 Damper motor cover 1

43. Y50 115 225 Bush 1

44. R50 351 225 Cord bush 1

45. Y50 061 260 Damper motor 1 AC220･240V

46. R50 054 225 Bush 1

47. Y50 116 156 Rod 1

48. Y50 115 705 Control cover 1

49. Y50 115 368 Wiring diagram 1

50. H00 003 005 PPT screw 3×8 1

51. Y50 115 171 Circuit board 1 LG-X3-E

52. H00 013 076 Lock washer(4) 2

53. Y50 115 216 Transformer 1 AC230V

54. H00 011 008 PT screw 4×8(BS) 1

55. Y50 115 712 Terminal block fix plate 1

56. K83 170 228 Cord band 2

57. R50 546 705 Circuit fix plate 1

58. R50 476 225 Bush 3

59. H00 000 003 PP screw 4×8 2

60. H00 154 005 PPT screw 4×12 1

61. M13 100 242 Terminal block 1 3P

62. Y50 116 287 Capacitor 2 3.0μF･440VAC

63. Y50 047 231 Connection cable 1 SLIM-LOSSNAY

64. R50 547 167 Thermistor 1

65. Y50 115 711 Side plate 1

66. K82 163 225 Bush 2

67. Y55 001 223 Cord clip 1

Q'ty
pcs/unit

for safety



８６

—87—

43

LGH-35RX5-E

8 shows accessory parts.

41

48

42

32

44

58

57

8

47

56

55

46

45

8

54

53

52

52

8

34

8

51

50

49

59

8

61

60

59

8

8

62

8

8

65

62

8

8

64

8

8

66

66

63

67

Model LGH-50RX5-E

No. Parts No. Name of part Critical Remarks Price

1. R50 541 045 Special screw 2

2. R50 521 710 Filter stopper 8

3. R50 542 383 Core guide(left) 1

4. H00 000 244 PT screw 6×12 8

5. R50 541 380 Hanger 4

6. R50 542 706 Cover 2

7. R50 429 609 Flange 4

8. H00 000 487 PTT screw 4×8 48

9. R50 542 486 Maintenance cover 1

10. R50 521 717 Filter 4

11. R50 542 711 Lossnay core 2

12. R50 542 384 Core guide(right) 1

13. R50 466 344 Hinge 1

14. Y50 029 712 Fix piece 1

Q'ty
pcs/unit

for safety

With filter stopper



８８

—89—

7

LGH-50RX5-E

8 shows accessory parts.

8

8

5

7

6

5

4

8

8

5

4

3

2

2

8

1

10

8

8

14

8

7

7

13

2

5

12

1

2

11

10

9

Model LGH-50RX5-E

No. Parts No. Name of part Critical Remarks Price

21. R50 331 067 Special nut(8) 2 Left-handed

22. M34 398 077 Tab washer 2

23. R50 542 480 Centrifugal fan 2 φ220

24. R50 542 707 Fan base 2

25. M34 706 465 Special washer 2 φ10

26. Y50 116 454 Motor 2

27. Y50 116 712 Motor fix plate 2

28. H00 189 007 PTT screw 5×10 8

29. D43 008 223 Cord clamper 2

30. M45 649 226 Cord bush 4

31. Y50 115 709 Connector cover 2

32. H00 312 007 PTT screw 4×6 15

33. Y50 115 710 Connector plate 2

34. M45 017 228 Cord band 2

35. R50 542 487 Separator 2

36. H00 194 008 PT screw 5×20 8

37. Y50 116 080 Special washer 8

38. H00 012 050 Nut(5) 8

Q'ty
pcs/unit

for safety



９０

—91—

21

LGH-50RX5-E

22

23

24

25

26

32

31

30

30

27

28

8

30

31

34

36

35

32

37

30

38

35

38

28

27

8

26

25

37

36

29

29

33

24

23

22

21

33

Model LGH-50RX5-E

No. Parts No. Name of part Critical Remarks Price

41. R50 533 693 Fix plate 1

42. Y50 115 708 Damper motor cover 1

43. Y50 115 225 Bush 1

44. R50 351 225 Cord bush 1

45. Y50 061 260 Damper motor 1 AC220･240V

46. R50 054 225 Bush 1

47. Y50 116 156 Rod 1

48. Y50 115 705 Control cover 1

49. Y50 115 368 Wiring diagram 1

50. H00 003 005 PPT screw 3×8 1

51. Y50 115 171 Circuit board 1 LG-X3-E

52. H00 013 076 Lock washer(4) 2

53. Y50 115 216 Transformer 1 AC230V

54. H00 011 008 PT screw 4×8(BS) 1

55. Y50 115 712 Terminal block fix plate 1

56. K83 170 228 Cord band 2

57. R50 546 705 Circuit fix plate 1

58. R50 476 225 Bush 1

59. H00 000 003 PP screw 4×8 2

60. H00 154 005 PPT screw 4×12 1

61. M13 100 242 Terminal block 1 3P

62. Y50 116 288 Capacitor 2 3.5μF･440VAC

63. Y50 047 231 Connection cable 1 SLIM-LOSSNAY

64. R50 547 167 Thermistor 1

65. Y50 115 711 Side plate 1

66. K82 163 225 Bush 2

67. Y55 001 223 Cord clip 1

Q'ty
pcs/unit

for safety

９２

—93—

43

LGH-50RX5-E

8 shows accessory parts.

41

42

32

44

58

57

8

56

47

55

46

45

8

54

8

34

53

52

52

8

51

50

49

59

8

48

8

8

61

60

59

62

8

8

65

62

8

8

8

64

8

66

66

63

67

Model LGH-65RX5-E

No. Parts No. Name of part Critical Remarks Price

1. R50 541 045 Special screw 2

2. R50 524 710 Filter stopper 8

3. R50 543 381 Core guide(left) 1

4. H00 000 244 PT screw 6×12 8

5. R50 543 380 Hanger 4

6. R50 542 706 Cover 2

7. R50 429 609 Flange 4

8. H00 000 487 PTT screw 4×8 55

9. R50 543 486 Maintenance cover 1

10. R50 524 717 Filter 4

11. R50 543 710 Lossnay core 2

12. R50 543 382 Core guide(right) 1

13. R50 466 344 Hinge 2

14. Y50 029 712 Fix piece 1

Q'ty
pcs/unit

for safety

With filter stopper



９４

—95—

5

LGH-65RX5-E

8 shows accessory parts.

7

8

8

7

8

8

6

5

4

4

8

5

3

2

1

2

13

10

8

8

8

14

7

7

2

1

2

13

5

12

11

10

9

Model LGH-65RX5-E

No. Parts No. Name of part Critical Remarks Price

21. R50 218 067 Special nut(12) 2 Left-handed

22. K83 466 113 Washer(12) 2

23. R50 543 480 Centrifugal fan 2 φ245

24. R50 543 707 Fan base 2

25. R50 543 708 Inlet ring 2

26. H00 157 008 PT screw 6×20 8

27. M34 043 080 Special washer(6) 8

28. Y50 033 104 Key 2 5×5×11.5

29. Y50 117 453 Motor 2

30. R50 543 712 Motor fix plate 2

31. H00 189 007 PTT screw 5×10 16

32. H00 061 050 Nut(6) 8

33. M45 649 226 Cord bush 4

34. Y50 115 709 Connector cover 2

35. M45 017 228 Cord band 2

36. Y50 115 710 Connector plate 2

37. H00 312 007 PTT screw 4×6 2

38. R50 543 488 Separator 2

Q'ty
pcs/unit

for safety



９６

—97—

34

LGH-65RX5-E

35

21

31

22

23

24

31

25

31

26

27

33

33

38

37

36

29

28

30

31

32

33

31

37

32

38

34

36

30

33

29

28

31

27

26

31

25

24

23

22

21

Model LGH-65RX5-E

No. Parts No. Name of part Critical Remarks Price

51. R50 533 693 Fix plate 1

52. Y50 115 708 Damper motor cover 1

53. Y50 115 225 Bush 1

54. R50 351 225 Cord bush 1

55. Y50 061 260 Damper motor 1 AC220･240V

56. R50 054 225 Bush 1

57. Y50 117 150 Rod 1

58. Y50 115 705 Control cover 1

59. Y50 115 368 Wiring diagram 1

60. H00 003 005 PPT screw 3×8 1

61. Y50 115 171 Circuit board 1 LG-X3-E

62. H00 013 076 Lock washer(4) 2

63. Y50 115 216 Transformer 1 AC230V

64. H00 011 008 PT screw 4×8(BS) 1

65. Y50 115 712 Terminal block fix plate 1

66. K83 170 228 Cord band 2

67. R50 546 705 Circuit fix plate 1

68. R50 476 225 Bush 1

69. H00 000 003 PP screw 4×8 2

70. H00 154 005 PPT screw 4×12 1

71. M13 100 242 Terminal block 1 3P

72. Y50 117 287 Capacitor 2 5.0μF･440VAC

73. Y50 047 231 Connection cable 1 SLIM-LOSSNAY

74. R50 547 167 Thermistor 1

75. Y50 115 711 Side plate 1

76. K82 163 225 Bush 2

77. Y55 001 223 Cord clip 1

Q'ty
pcs/unit

for safety



９８

—99—

51

LGH-65RX5-E

8 shows accessory parts.

53

52

8

54

68

8

57

67

66

8

58

8

59

55

60

56

61

62

69

63

64

69

8

65

62

70

8

35

8

8

71

72

8

8

75

72

8

8

74

8

8

76

76

73

77

Model LGH-80RX5-E

No. Parts No. Name of part Critical Remarks Price

1. R50 541 045 Special screw 2

2. R50 522 710 Filter stopper 8

3. R50 543 383 Core guide(left) 1

4. H00 000 244 PT screw 6×12 16

5. R50 095 380 Hanger 4

6. R50 543 704 Cover 2

7. Y50 021 609 Flange 4

8. H00 000 487 PTT screw 4×8 54

9. R50 543 487 Maintenance cover 1

10. R50 529 717 Filter 4

11. R50 543 711 Lossnay core 2

12. R50 543 384 Core guide(right) 1

13. R50 466 344 Hinge 1

14. Y50 029 712 Fix piece 2

Q'ty
pcs/unit

for safety

With filter stopper

１００