Mitsubishi Electric LGF-100GX-E User manual

Warning:
Repair work must be performed by the manufacturer, its service
agent or a similarly qualified person in order to avoid hazards.
LOSSNAY
HANDBOOK
MODELS
LGF-100GX-E
April 2019 No. U174-C
Remote controller (Optional)
PZ-60DR-E
Filter
PZ-100GF-E (Pre-filter)
PZ-100GFM-E (High efficiency filter)
Nameplate

Contents
1. Safety precautions
....................................................................... 3
2. Specifications .............................................................................. 4
3. Outside dimensions
.................................................................. 5-6
4. Electrical wiring diagram ............................................................. 7
5. Basic circuit diagram ................................................................... 8
6. Fundamentals of operation ..................................................... 9-31
7. Troubleshooting
.................................................................... 32-52
8. Overhaul procedure............................................................... 53-55
9. Parts catalog ........................................................................ 56-64
LGF-100GX-E................................................................. 57-64

─3 ─
Electric shock
If you must inspect the circuitry while the power is
on, do not touch the live parts.
(Failure to heed this warning may result
in electric shock.)
Modification is prohibited
Do not modify the unit.
(Failure to heed this warning may result in elec-
tric shock, fire and/or bodily injury.)
Proper electric work
Use the electric wires designated for electric work,
and conduct electric work in accordance with the
"Electric Installation Engineering Standard", the
"Indoor Wiring Regulations", and the Installation
Work Guide.
(Incomplete connection or wiringin-
stallation may result in electric shock
and/or fire.)
Turn off the power supply
Be sure to shut off the earth leakage breaker be-
fore disassembling the unit for repair.
(Failure to heed this warning may
result in electric shock.)
1. Safety precautions
Be sure to read the following precautions thoroughly before the maintenance, and then inspect and repair the
product in a safe manner.
The types and levels of danger that may arise if the product is handled incorrectly are described with the warning
symbols shown below.
Be sure to follow
this instruction.
Caution against
electric shock
Prohibited
Be sure to follow
this instruction.
Use proper parts and tools
For repair, be sure to use the parts listed in the
service parts list of the applicable model and use
the proper tools.
(Failure to heed this warning may
result in electric shock, fire and/or
bodily injury.)Be sure to follow
this instruction.
Replace damaged and/or degraded parts
Be sure to replace the power-supply cord and
lead wire in the event that they are damaged and/
or degraded.
(Failure to heed this warning may
result in electric shock and/or fire.)Be sure to follow
this instruction.
Check insulation
Be sure to measure the insulation resistance
once the repair work is complete, and turn on the
power supply after verifying that an insulation re-
sistance of at least 10MΩis obtained.
(If an insulation problem exists, it
may result in electric shock.)Be sure to follow
this instruction.
Caution for bodily injury
Do not work at a location where you
do not have a sure footing.
(Failure to heed this caution may
result in a fall.)
Wear gloves
Wear gloves when servicing.
(Failure to heed this caution may re-
sult in injury to your hands from sharp
metal or other edges.)
Make sure that the product operates properly upon completion of repair. Clean the product and the surrounding
area, and then notify the customer of the completion of repair.
Request for repair
Inspect the grounding, and repair it if it is incomplete. Make sure that an earth leakage breaker or an overload
protection device is installed. If it is not installed, recommend the dealer to install one.
Caution Incorrect handling of the product may result in serious injury or
damage to properties including buildings and equipment.
Be sure to follow
this instruction.
Prohibited
Warning Incorrect handling of the product may
result in serious injury or death.

─4 ─
2. Specifications

─5 ─
3. Outside dimensions
LGF-100GX-E
Unit (mm)

─6 ─
PZ-60DR-E
Unit (mm)
PZ-100GF-E PZ-100GFM-E
Unit (mm)Unit (mm)

─7 ─
4. Electrical wiring diagram
LGF-100GX-E
EstablishConnectiontoTM1,TM2,TM3,TM4,andTB5shownindottedlines
atworksite.
Donotconnectaninverterforpowersupply.

─8 ─
5. Basic circuit diagram
Circuit board diagram and check points
* Fan drive output voltage: Each 220 to 240 V AC
During
operation: 0Ω
When
stopped: Ω
(TM4 9,10)
5 V DC
(C6) GND
(C5)
(TAB3)
LED 4 (Red)
•Energized: Lit
•Not
energized: OFF
(TAB1, TAB2)
12 V DC
(C4,C5)
15 V DC
(C3,C8)
LED 1 (Green)
•Normal
: unlit
•During
an error: blinking
(TAB5)
EA fan drive
(CN9)
Extra
High High Low
Transformer
secondary
(CN2)
(output)
11 to 20 V AC
Lossnay remote controller
(PZ-60DR-E, PZ-41SLB-E)
and transmission cable
between Lossnay units
(TM4 , )
10 to 15V DC
Transformer
primary (input)
(CN1)
220 to 240 V AC
Fuse
(5 A/250 V)
For damper
motor drive
(CN7)
220 to
240 V AC
During an
error : 0Ω
Normal: Ω
(TM3 7,8)
When SW5-6 is OFF
During bypass
ventilation: 0Ω
During Lossnay
ventilation: Ω
When SW5-6 is ON
During operation
and when the outdoor air
temperature is -5°C to
15°C: 0Ω
While the unit is stopped,
or when the outdoor air
temperature is 15°C: Ω
(TM3 6,7)
Thermistor
(RA) (OA)
(CN5)
LED 2 (Red)
When it is blinking, an
M-NET communication
error is occured.
(The number of
blinks indicates the
details of the error)
It will be lit steadily
when there is no
(registered) connection
to another M-NET
device.
M-NET transmission
cable (Shielded)
(TB5 S)
For external
device connections
(TM2)
M-NET transmission cable
(PZ-52SF-E, M-NET
controller, power supply
unit, and City Multi
indoor unit)
(TB5 A,B)
Damper motor
position detection
(CN6)
During Lossnay
ventilation: 12 V DC
During Bypass
ventilation: 0 V
SA fan drive
(CN10)
Extra
High High Low
Common for EA
fan drive
Common for SA
fan drive
Power supply
230 V AC

─9 ─
Basic System
Basic
System
Lossnay
M-NET
Remote
controller
Mr. Slim
indoor unit
A,K
Mr. Slim
Lossnay
interlocked
signal
Mr. Slim-Lossnay
connection cable
(Included parts with
Lossnay)
A-control or
K-control remote
controller
• Lossnay can be started/
stopped by an A-control
remote controller or a
K-control remote controller.
• Lossnay High or Low fan
speed can be selected from
the A-control remote controller.
• Lossnay stand-alone opera-
tion is permitted from the
A-control remote controller.
* Neither PZ-60DR-E nor
PZ-41SLB-E can be used.
Level sig-
nal output
device
(other
manu-
facturer's
PAC etc.)
or pulse
signal out-
put device
(building
control
system
etc.)
Systems
inter-
locked
with
external
devices
(air
condi-
tioning
units)
6. Fundamentals of operation
Description of the circuit operation
(1)System Configuration
Lossnay operates through the following system.
System
Classification Details
1 Lossnay
unit
1 Remote
controller
Two
remote
control-
lers sys-
tem
1 Lossnay
unit
2 Remote
controllers
Multiple
units
system
Multiple
Lossnay
units
System Diagram
Remote controller : PZ-60DR-E or PZ-41SLB-E
Transmission cable terminal
blocks between Lossnay unit
M-NET : M-NET transmission cable
terminal block
R : Remote controller
(
PZ-60DR-E or PZ-41SLB-E)
• One remote controller oper-
ates one Lossnay unit.
• Two remote controllers oper-
ate one Lossnay unit. (Last
touch priority operation)
* PZ-60DR-E and PZ-41SLB-E
cannot be used together.
Lossnay
remote
controller
(PZ-60DR-E or
PZ-41SLB-E)
Lossnay
remote
controller
(PZ-60DR-E or
PZ-41SLB-E)
• A maximum of 15 Lossnay
units can be operated by
a single remote controller.
(Group operation)
• All units will operate in the
same mode.
Lossnay
remote
controller
(PZ-60DR-E or
PZ-41SLB-E)
Features Required
Parts
R
Lossnay
M-NET Remote
controller Transmission cable
between the remote
controller and Lossnay
RR
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 per-
mits last touch priority opera-
tion with the external device
and the remote controller.
• A maximum of 15 Lossnay
units can be operated.
*1: An uncharged a-contact,
12 V DC or 24 V DC level
signal, or an uncharged
a-contact, 12 V DC or 24 V
DC pulse signal.
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
control-
ler)

─10 ─
M- NET Control
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
inter-
locked
with
external
devices
(air
condi-
tioning
units)
Mitsubishi
City Multi
air condi-
tioner
(MA
remote
control-
ler or ME
remote
control-
ler)
Central
control
sys-
tem for
Lossnay
only
Central/
independ-
ent control
of multiple
Lossnay
units
System Diagram
Remote controller : Terminal block for trans-
mission cable between
PZ-60DR-E and Lossnay unit
M-NET : M-NET transmission cable
terminal block
R1 : PZ-60DR-E
R2 : PZ-52SF-E
When using PZ-60DR-E
* Refer to the technical documentation for details about M-NET system design.
When using PZ-52SF-E
When using PZ-60DR-E
• Can be interlocked with a
maximum of 16 air condition-
ing units.
• Lossnay can be started/
stopped, and switched
between High and Low fan
speed by an air conditioner
remote controller.
• Lossnay stand-alone opera-
tion is permitted from an air
conditioner remote control-
ler.
• Having PZ-60DR-E or
PZ-52SF-E, last touch priori-
ty operation is permitted with
the air conditioner remote
controller and the Lossnay
remote controller.
*1: PZ-41SLB-E cannot be
used in this system.
*2:
PZ-60DR-E and PZ-52SF-E
cannot be used together.
• Lossnay batch/independent
(group)control permitted by
system controller.
• Operation of Lossnay within
a group is permitted by a
Lossnay remote controller.
(PZ-60DR-E or PZ-52SF-E)
• One group of a maximum
of 16 Lossnay units can be
operated.
• Number of Lossnay control
units
Centralized controller
(AG-150A): 50 units/50
groups
O N/OFF remote controller
(PAC-YT40ANRA):
50 units/16 groups
System remote controller
(PAC-SF44SRA):
50 units/50 groups
*1: The remote controller
(PZ-41SLB-E)cannot be
used in this system.
*2: PZ-60DR-E and PZ-52SF-E
cannot be used together.
• Lossnay
remote
controller
(PZ-60DR-E
or
PZ-52SF-E)
• Centralized
controllers
(G-50A),
(PAC-
SF44SRA),
(PAC-
YT40ANRA),
and
(AG-150A)
• Power sup-
ply units
(PAC-
SC50KUA),
(PAC-
SF46EPA),
and (PAC-
SC51KUA)
Features Required
Parts
Lossnay
SC Power supply
R1 R1
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

─11 ─
For Mr. Slim
For Lossnay independent control
Schedule timer PAC-YT34STA
PAC-SC30GRAGroup remote controller
PAC-YT40ANRAON/OFF remote controller
PAC-SF44SRASystem remote controller
G-50A, AG-150A
Centralized controller
Remote controller list
Remote controllers
System controllers
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 con-
ditioner
MA remote control-
ler
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.

─12 ─
The remote controller “Fan Speed Adjustment” button permits High
(Extra High)/Low fan speed selection.
Extra low fan speed is not available.
Fixed to High (Extra High)fan speed.
Lossnay remote
controller
PZ-41SLB-E
The remote controller “Fan Speed Adjustment” button permits High
(Extra High)/Low fan speed selection.
Stand-alone/mul-
tiple Lossnay
and Lossnay
remote controller:
PZ-41SLB-E
System Configuration
(3)Fan control
Fan 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 the 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
Lossnay remote
controller
PZ-60DR-E
The remote controller “Fan Speed Adjustment” button permits High
(Extra High)/Low fan speed selection.
Extra low fan speed is not available.
Stand-alone/mul-
tiple Lossnay
and Lossnay
remote controller:
PZ-60DR-E
A-control remote
controller
K-control remote
controller
(Remote control-
ler 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.)
System interlocked
with Mr. Slim
NoneLevel signal/pulse
signal
System interlocked
with the output
device
Lossnay remote
controller
PZ-60DR-E
Stand-alone/mul-
tiple Lossnay
and Lossnay
remote controller:
PZ-60DR-E
Lossnay remote
controller
PZ-52SF-E
The remote controller “Fan Speed Adjustment button” permits High
(Extra High)/Low fan speed selection.
Stand-alone/multi-
ple Lossnay and
Lossnay remote
controller:
PZ-52SF-E
M-NET controller The system remote controller, or centralized control remote control-
ler “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.)
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.
M-NET
System interlocked
with City Multi
indoor units
Remote controllers
System controllers
Fan speed
Basic SystemM- NET Control

─13 ─
Extra High
/High
Fan speed
selection
Multi ven-
tilation
mode
Power
supply/
exhaust
mode
(When
operation
starts )
The fan speed can be selected either High or Extra High, when
the speed is set High with the remote controller or the system
controller. Select Extra High when large air volume is required,
or when the ductwork length is long.
When set to High fan speed, High/Low fan speed can be
switched, and when set to Extra High fan speed, Extra High/
Low fan speed can be switched.
Air supply SW2-9
: ON
Exhaust SW2-10
: O
N
(Refer to page
25)
SW2-3: ON
(Refer to page
25)
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.
Fan 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
28)
Supply fan
speed setting
Multiple ventila-
tion : L
Exhaust fan
speed setting
Multiple ventila-
tion : L
(Refer to page
28)
Air supply SW2-4
: ON
Exhaust SW2-5
: ON
(Refer to page
25)
The settable fan speed with the remote controller or the sys-
tem controller can be fixed at Low. The supply/exhaust balance
is adjusted to suit the usage environment or the place of instal-
lation.
Power supply/
exhaust when
operation starts :
ON
(Refer to page
28)
During the first 30 minutes of operation, operation will be at
High (Extra High)fan speed. This is used when rapid ventila-
tion 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 sys-
tem 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.
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
PZ-60DR-E cannot be switched to a setting other
than Low fan speed. Other remote controllers and
system controllers can change the fan speed dis-
play; 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 control-
lers and system controllers will display the set fan
speed, even during power supply exhaust opera-
tion.
Display
Multiple
units

─14 ─
Function
Restriction when switching fan speed
When switching between High (Extra High)and Low fan speed, the fan will be stopped for approximately
5 seconds.
Air supply fan forced stop
Under the following conditions, Lossnay will force stop of the air supply fan.
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 -10 °C or lower, the air supply fan is stopped periodically for approxi-
mately 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.
Ventilation mode
There are three 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 , output setting
“Operation monitor with delay
function 1”: SW2-8: ON
TM3 , output setting
“Operation monitor with delay
function 2”: SW5-6: ON
(Refer to page 25)
* This function cannot be set from
PZ-60DR-E.
When TM4 , output settings, and TM3 , 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.
PZ-60DR-E
(Remote controller
function selection)
PZ-60DR-E Not Used
(Function selec-
tion switch)
Details
Setting Method

─15 ─
Fixed to automatic ventilation.
Stand-alone/multi-
ple Lossnay and
Lossnay remote
controller:
PZ-41SLB-E
Basic System
M- NET Control
Fixed to automatic ventilation.
Lossnay remote controller
PZ-60DR-E
The “Function selector” button of the remote control-
ler 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/mul-
tiple Lossnay
and Lossnay
remote controller:
PZ-60DR-E
Lossnay remote controller
PZ-52SF-E
The “Function selector” button of the remote control-
ler permits ventilation mode switching for automatic ,
Lossnay, and bypass ventilation.
Stand-alone/mul-
tiple Lossnay
and Lossnay
remote controller:
PZ-52SF-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 the re-
mote controller.
PZ-41SLB-E cannot be used in M-NET control. When controlling Lossnay in M-NET con-
trol, use PZ-60DR-E or PZ-52SF-E.
Caution
System
Lossnay remote controller
PZ-60DR-E
The “Function selector” button of the remote control-
ler 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/multi-
ple Lossnay and
Lossnay remote
controller:
PZ-60DR-E
Lossnay remote controller
PZ-41SLB-E
The “Function selector” button of the remote control-
ler 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
None
Level signal/pulse
signal output
device and external
device only
Remote controllers
System controllers Ventilation mode
Damper control for each system
The control indicated below can be performed according to the system that is paired

─16 ─
Bypass ventilation prohibited
When the conditions described below are applicable, the ventilation mode will be fixed at Lossnay ventila-
tion. 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 8 °C 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 °C to one higher than 10 °C.
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 temper-
ature (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.
Damper operation
The damper is controlled on a 30-second cycle. Accordingly, a delay of 30 seconds maximum may be gen-
erated from ventilation mode switching to damper operation.
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 control-
ler 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 tem-
perature 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
0
5
10
15
20
25
30
35
40
0 5 10 15 20 25 30 35 40
Indoor temperature °C
Heating mode
0
5
10
15
20
25
30
35
40
0 5 10 15 20 25 30 35 40
Indoor temperature °C
Remote controller
Set temperature
Bypass ventilation
Prohibition temperature 8°C
4°C
Lossnay
Ventilation
Lossnay
Ventilation
Remote controller
Set temperature
Outdoor temperature °C Outdoor temperature °C
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.
Lossnay ventilation area
Bypass ventilation area
Undetermined area
Bypass
Ventilation
Bypass
Ventilation
Undetermined area
Bypass
Ventilation
Undetermined area

─17 ─
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.
0
5
10
15
20
25
30
35
40
0 5 10 15 20 25 30 35 40
Indoor temperature °C
Bypass ventilation
Prohibition temperature 8°C
19°C
Lossnay
Ventilation
0
5
10
15
20
25
30
35
40
0 5 10 15 20 25 30 35 40
Indoor temperature °C
Lossnay
Ventilation
19°C
When an outdoor temperature of 17°C has not
been detected within 24 hours
When an outdoor temperature of 17°C has been
detected within 24 hours
Bypass ventilation
Prohibition temperature 8°C
Outdoor temperature °C Outdoor temperature °C
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.
Lossnay ventilation area
Bypass ventilation area
Undetermined area
Bypass
Ventilation
Bypass
Ventilation
Undetermined area
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 28°C has not
been detected within 24 hours
0
5
10
15
20
25
30
35
40
0 5 10 15 20 25 30 35 40
Indoor temperature °C
24°C
Lossnay
Ventilation
When an outdoor temperature of 28°C has been
detected within 24 hours
0
5
10
15
20
25
30
35
40
0 5 10 15 20 25 30 35 40
Indoor temperature °C
Lossnay
Ventilation
24°C
Bypass ventilation
Prohibition temperature 8°C
Bypass ventilation
Prohibition temperature 8°C
Outdoor temperature °C Outdoor temperature °C
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.
Lossnay ventilation area
Bypass ventilation area
Undetermined area
Bypass
Ventilation
Undetermined area
Bypass
Ventilation

─18 ─
Type
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)can-
not 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 venti-
lation 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 tempera-
ture, and other internal information can also be brought in.
Systems
interlocked
with
Mitsubishi
City Multi
indoor units
(5)Interlocking with external devices
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
Ventilation mode change recommendation (RECOMMENDED, VENTILATION MODE)display
When PZ-60DR-E is used 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 algo-
rithm. 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.)

─19 ─
SW5-1: OFF
(Factory setting)
Interlock
mode
Function settings
PZ-52SF-E or remote
controller not used
(Function selec-
tion switch)
SW5-1: ON
Interlock mode
Lossnay can set the following four types of interlock modes for the start/stop signal from the external device.
Delay operation
This function delays the starting of Lossnay for 30 minutes with respect to the start signal from the exter-
nal device (and for 10 to 60 minutes when PZ-41SLB-E is used). When the remote controllers other than
PZ-41SLB-E are used, LED1 on the Lossnay circuit board will light during delay operation. Also, when PZ-
60DR-E and PZ-41SLB-E are used, there will be a display of the delay time.
*1: Display of liquid crystal display (LCD) when setting is made by the 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)
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 controlled
by the remote controller.
ON interlock Lossnay will start with
the start signal of the
external device.
Stopping is controlled
by the remote controller.
Interlock mode
setting
“on”
SW5-7: OFF
SW5-8: ON
3Lossnay will stop when
the pulse signal is input.
Starting is controlled by
the remote controller.
OFF inter-
lock
Lossnay will stop with
the stop signal of the
external device.
Starting is controlled by
the remote controller.
Interlock mode
setting
“oFF”
SW5-7: ON
SW5-8: ON
4Same as ON/OFF inter-
locked.
External
input prior-
ity ON/OFF
interlock
Same as ON/OFF inter-
locked.
Note that during opera-
tion that started with a
signal from the external
device, stopping by the
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)
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”.

─20 ─
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.
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 func-
tion 1” and “Operation monitor with delay function 2”, respectively.
(Switch with the DIP switch (function selection switch) on the Lossnay circuit board. Refer to page 25 and 26.)
MinimumMaximum
Contact Rating
240 V AC, 1 A
24 V DC, 1 A
Malfunction moni-
tor
TM3 ,
*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 , Uncharged
a-contact
Turned ON (closed)at time
of Lossnay operation.
This can also be turned ON
(closed)at time of air sup-
ply fan operation.
Operation monitor
with delay func-
tion 1
Turned ON (closed)10 sec-
onds 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 ,
*2
Uncharged
a-contact
Turned ON (closed)at time
of bypass ventilation.
Operation
monitor with delay
function 2
Turned ON (closed)10 sec-
onds after start of air supply
fan when outdoor air tem-
perature is -5 °C or lower.
Turned OFF (open)when
outdoor air temperature is
15 °C or higher.
220 V AC, 100 mA
5 V DC, 100 mA
*1 Terminal of TM3 is a common terminal with bypass operation monitor/operation monitor with delay function
2 output .
*2 Terminal of TM3 is a common terminal with malfunction monitor output .
*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.)
Input terminals
a. High (Extra High)/Low fan speed switching input
This is used for external switching of the fan speed by means of a commercially available CO2sensor, etc.
During the input of High (Extra High)/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.
When PZ-60DR-E is used in a system of multiple Lossnay units, input of High (Extra High)/Low
fan speed into the “Main” Lossnay will permit the switching of the fan speed of all Lossnay units
within the same group. When PZ-60DR-E is not used, input High/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 input.
Operation
Multiple
units
• A remote display adaptor (PAC-SA88HA-E), which is sold separately, is required for the connections.