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.