Mitsubishi LGH-15RX5, LGH-25RX5, LGH-35RX5, LGH-50RX5, LGH-65RX5 TECHNICAL MANUAL
...
HEAD OFFICE : MITSUBISHI DENKI BLDG., 2-2-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
http://Global.MitsubishiElectric.com
Y08-003 Nov.2008(MEE)
Specifications subject to change without notice.
Concentrating what we can do.
more, ever and definitely...
ENERGY RECOVERY VENTILATORS
RX5 SERIES
MODEL
Poor air quality can be attributed to many
problems arising in the workplace or in the
home. It is believed to contribute to a
significant loss in productivity, low morale and
higher rates of sickness among many
employees. The object of providing good
ventilation alongside air condition in
residential and commercial buildings is to
provide conditions under which people can
live and work comfort and safety.
Developed and refined over the past 30
years, the LOSSNAY system has perfected
the recovery of waste energy. The units
reduce overall energy costs by extracting
stale air and then recovering the heating or
cooling energy to either warm and cool
incoming fresh air. By utilising this energy, the
LOSSNAY system can save up to 30% on
initial capital costs of heating and cooling
plant.
Excellent air quality
and unbeatable
Heat Exchange Efficiency
Try blowing into a rolled up piece of paper.
The warmth of your breath travels through
the paper to your hands.
Some 38 years ago, that simple principle led to the development
of our most advanced air-conditioning technology.
Fresh air
from outside
Fresh air supply
to the room
Stale room air
extracted
Stale exhaust
air
Heat exchange unit
(LOSSNAY core)
Simple and Effective
1 2
LOSSNAY's Energy Recovery Technology and
Simultaneous Ventilations (Supply and Exhaust)
Contribute to Excellent Indoor air Quality and
Significantly Reduce the Outdoor air load.
Temperature difference between air supply and room: 1.7 ºC
In summer
Supply air
Room air
Air
conditioner
Air
conditioner
About 4kg/h of water vapor is recovered.
In winter
Dry bulb temperature (ºC)
Absolute humidity (g/kg'(DA))
Relative humidity (%)
Enthalpy (kJ/kg(DA))
Total heat recovered (kW)
Outdoor air load (kW)
Outdoor air load ratio (%)
LOSSNAY
27.7
13.4
58
62.1
7.5
3.1
71
33
20.1
63
84.6
0
10.6
100
Conventional
ventilator
Dry bulb temperature
Absolute humidity
Relative humidity
Enthalpy
Dry bulb temperature
Absolute humidity
Relative humidity
Enthalpy
Outdoor air
Exhaust air
Supply air
Room air
Dry bulb temperature (ºC)
Absolute humidity (g/kg'(DA))
Relative humidity (%)
Enthalpy (kJ/kg(DA))
Total heat recovered (kW)
Outdoor air load (kW)
Outdoor air load ratio (%)
LOSSNAY
16
5.2
46
29.2
8.2
3.1
72.5
Conventional
ventilator
0
1.9
50
4.7
0
11.3
100
Dry bulb temperature
Absolute humidity
Relative humidity
Enthalpy
Outdoor air
Exhaust air
Dry bulb temperature
Absolute humidity
Relative humidity
Enthalpy
0ºC
1.9g/kg'(DA)
50%
4.7kJ/kg(DA)
20ºC
7.3g/kg'(DA)
50%
38.5kJ/kg(DA)
33ºC
20.1g/kg'(DA)
63%
84.6kJ/kg(DA)
26ºC
10.5g/kg'(DA)
50%
52.9kJ/kg(DA)
Energy-recovery calculating equation
Indoor supply-air
temperature (
º
C)
Indoor
temperature (
º
C)
Outdoor
temperature (
º
C)
_
}
×
Temp recovery
efficiency (%)
Outdoor
temperature (
º
C)
+
Calculation example : 16ºC=(20ºC_0ºC)×80%+0ºC
=
{
Energy-recovery calculating equation
Indoor supply-air
temperature (
º
C)
Outdoor
temperature (
º
C)
Indoor
temperature (ºC)
Outdoor
temperature (ºC)
_
_
{
}
×
Temp recovery
efficiency (%)
Calculation example : 27.7ºC=33ºC_(33ºC_26ºC)×76%
=
Every building needs a supply of fresh air to keep its inhabitants healthy and comfortable. Outdoor air though is rarely, if ever,
the same temperature as that maintained by the building,s air conditioning system. In the summer, it is too hot. In the winter, it
is too cold. This puts added stress on the air conditioner to compensate for the intake of the hot or cold air adding to the
expense of operating the system. LOSSNAY all but eliminates this problem with original energy-recovery technology that uses
the heat of the stale indoor air to be expelled in order to either heat or cool the incoming fresh air to a temperature much closer
to the existing indoor air. This process reduces the load on the air conditioning system without cutting off the supply of vitally
necessary fresh air.
The remarkable technology that permits the intake of fresh air with
minimal loss to indoor temperature is know as the LOSSNAY
Core. The cross-flow, plate-fin structure of the energy-recovery
unit along with a specially processed diaphragm keep supply and
exhaust air separate, ensuring that only fresh air is introduced to
the indoor environment while also allowing for the efficient transfer
of heat.
The microscopically small pores of the diaphragm have been
made even smaller, decreasing the rate at which water soluble
gases such as ammonia and hydrogen pass through. Further, a
new specially processed paper used to make the diaphragm has
been developed with high moisture permeability characteristics
that aid in the transference of moisture for improved energy
exchange efficiency. These developments further improve
moisture permeability and effectiveness in shielding unwanted
gases, resulting in a lower rate of gas transference and more
highly efficient energy transfer.
LOSSNAY Core
Construction & Principle
Fresh air exhaust
(fresh heating/cooling air)
Stale air exhaust
(dirty indoor-air)
Stale air induction
(dirty heating/cooling air)
Fresh air induction
(fresh air)
SAEA
RAOA
* The above applies to the case of LGH-100RX5 (High notch).
Energy-Recovery Concept by Hyper Eco LOSSNAY Core
The improvements
The basic principle
Outdoors Indoors
64%
65%
66%
67%
68%
69%
70%
71%
72%
73%
74%
15RX
Type
25RX
Type
35RX
Type
50RX
Type
65RX
Type
80RX
Type
100RX
Type
150RX
Type
200RX
Type
Enthalpy exchange efficiency improve
RX5RX5
*Cooling, High Fan speed, 50Hz
Spacerplates
Dividerplates
Humidity
Improved adhesive
agent material
RX4
Mitsubishi's newly developed Hyper Eco Element is on
board, offering the industry's best total heat exchange
efficiency. Energy conservation performance has been
improved not only by reducing the air conditioning load
associated with ventilation, but also by facilitating humidity
penetration.
Introducing the new Hyper Eco Element
Better energy conservation by improved total heat exchange efficiency.
In addition to the conventional Extra High, High, and Low
modes, an Extra Low mode is added to provide a more
dynamic range of air volume settings and versatility in a
variety of installation environments, yielding much better
energy conservation. Using a simplified timer function, it
switches to Extra Low operation when the operation stop
button is activated and it is accordingly possible to implement
24-hour energy conservation ventilation.
Additional energy conservation by using a
four-level air volume system that allows
more precise control.
Extra Low Mode
In addition to the automatic damper open/close
function, open/close control via external devices
is now possible, delivering a By-pass
ventilation system that is suitable to the installed
environment.
.
Temperature sensor
.
Humidity sensor
.
Timers
"By-pass" operation
New function: "By-pass" Ventilation External Control SettingHyper Eco Core
* When the outdoor air tempereture drops lower than 8
ºC it changes to the heat exchange
ventilation. (Display of the remote controller does not change)
* In the case of
“By-pass” ventilation, the supply air temperature slightly rises more than the
outside air temperature because of the heat effect around the ducts or the unit motors.
* The Extra High and High ventilation modes are selectable by the initial
setting.
* Extra-Low not equipped LGH-150RX
5 and 200RX5.
* The ventilation mode is actually selected in three levels, and the remote
controller also displays these three levels.
CO2 Sensor
CO2Sensor
High CO
2
density
Automatic ventilation setting
The automatic damper mode automatically provides the
correct ventilation for the conditions in the room. The
following shows the effect “By-pass” ventilation will have
under various conditions.
1. Reduces cooling load
If the air outside is cooler than the air inside the building
during the cooling season (such as early morning or
at night), “By-pass” ventilation will draw in the cooler
outside air and reduce the cooling load on the system.
2. Night purge
“By-pass” ventilation can be used to release hot air from
inside the building that has accumulated in buildings a
business district during the hot summer season.
3. Office equipment room cooling
During cold season, fresh air can be drawn in and used as
is to cool rooms where the temperature has risen due to
the use of office equipment.
SW1
CN16
CO2 sensor, etc.
(When CO2 increases: Closed)
SW1: High fan speed operation switch
(When closed: For High fan speed operation)
Remote display adaptor
(Optional) PAC-SA88HA-E
Brown 1
Red 2
Orange 3
Yellow 4
Green 5
Not used. Insulate completely.
Max wiring length 10 m
LOSSNAY
control board
Fan speed/
Ventilation
mode selection
When SW1 is "ON", fan speed of the LOSSNAY will be set
to "High"(Extra-High) regardless of the remote control setting.
Use this in such a way that it ventilates at Low or Extra-Low
fan speed normally, and when the external sensor detects
contamination of indoor air, it changes to High (Extra High)
fan speed operation.
To force High fan speed externally
Air volume can be set using a pin position.
CO2Sensor
Low CO
2
density
Establish the wire connection by inserting the optional remote
display adaptor (PAC-SA88HA-E) in the connector CN16
(Ventilation mode selector).
With SW1 is “ON”, the ventilation mode of LOSSNAY is
changed to the By-pass ventilation regardless of the
setting on the remote controller.
Hyper Element
Humidity does not
penetrate easily.
Adhesive agent
with low humidity
penetration rate
Humidity penetration is
facilitated.
New adhesive agent
with high humidity
penetration rate
Hyper Eco Element
Outdoors Indoors
EA
(exhaust air)
OA
(outside air)
RA
(return air)
OA
(outside air)
SA
(supply air)
RA
(return air)
Element Structure
Control devices (example)
SW1
CN16
SW1: By-pass ventilation operation switch
(When closed: For By-pass ventilation operation)
Remote display adaptor
(Optional) PAC-SA88HA-E
Brown 1
Red 2
Orange 3
Yellow 4
Green 5
Not used. Insulate completely
.
LOSSNAY
control board
Fan speed/
Ventilation
mode selection
Max wiring length 10 m
The system allows you to measure
CO
2 density and thereby control the
amount of fresh air supplied. By
connecting a CO
2 sensor to the
connector CN16, which is added to
the LOSSNAY main unit, the setting
can be switched to High, Low, or Extra Low
operation, which is selected when the sensor is
turned ON. This system produces additional energy
conservation.
Fan speed
High
Fan speed
Extra-Low
Damper
LOSSNAY core
Fresh air
Supply air
Exhaust air
Return air
Extra Low Low High
A)
Extra Low Low Extra High
B)
3 4
5 6
Multi-ventilation Mode enables the appropriate supply/
exhaust balance to be selected to suit the usage environment and location
Featuring "Multi-ventilation Mode,"
which allows the air supply/exhaust
balance to be varied dynamically.
The supply/exhaust balance can be
selected to suit the usage environment
and location, such as allowing for air
exhausted via extractor fans. Modes can
be selected easily by setting the
connectors on the circuit board.
* "High notch" can also be further set to "Extra High" using the unit switch.
Offers choice of 9 air supply/exhaust combination patterns.
Hand-held remote control
for microprocessor type
Supply airflow
High
High
Low
Low
Exhaust airflow
High
Low
High
Low
Air supply and exhaust are "Low"
irrespective of unit setting.
Unit setting
* Factory setting is "High" for
both supply and exhaust.
Air supply
High
High
Low
Air exhaust
High
Low
High
Ventilation mode
Power air supply/exhaust mode
Power air supply mode
Power air exhaust mode
Energy-saving ventilation mode
Low
High
Control switch
Smaller offices or
tenant buildings, etc.
Using LOSSNAY compensates
for using extractor fans
...
Power air supply
Smoking areas, etc.
Priority on air exhaust
...
Power air exhaust
Normal office, etc.
Providing efficient ventilation
while maintaining air
supply/exhaust balance
...
Power air supply
/exhaust
Energy Saving by
Energy Saving by
Night Purge Function
Newly Adopted Dot Matrix Display Available in Eight Languages
During the summer season, the Night Purge function draws cooler outside air into the room to suppress temperature
rises at night. This energy conservation function reduces the load when air conditioning is started the next morning.
timer
The out door temperture (OA) setting can be selected either 17゜ C or 28゜ C by using Dip-Switch (SW2-7) in the LOSSNAY control box. Refer to the Instillation Manual for more information.
*Do not use the night purge function if fog and heavy rain is expected. The entry of rain water may occur in the night.
While air conditioning and
ventilation are not operating,
the room temperature rises as
a result of heat from the
skeleton and OA equipment.
When the outside temperature
becomes lower than the room
temperature, ventilation starts
automatically.
The air conditioning load
required to reach the set
temperature the next
morning is reduced.
At night, the outside
temperature drops.
When the room becomes
sufficiently cool, ventilation
is stopped.
Hot air is discharged.
Example B (Weekly)
Example A (Hourly)
8:00 9:00 12:00 13:00 17:00 19:00 22:00
low high low high low extra low
new RX5 series with PZ-60DR-E
8:00
high
current RX4 series with PZ-41SLB controller
22:00
New Remote Controller PZ-60DR-E
A new remote controller for the RX5 series is now available. In addition to boosting the energy conservation performance of
the main unit, the remote controller features a variety of new functions which also pursue additional energy conservation.
The appearance of the remote controller conforms to Mitsubishi air conditioner interface design standards.
Functions that were set using Dip-Switch on the LOSSNAY main unit can now be configured as needed using the new remote controller. This eliminates the need to crawl under the eaves to change operation settings.
Also, a newly adopted dot matrix display provides much more information, making it easy to check maintenance indications, operation status display, and explanations required when configuring settings.
Tolal power consumption in one day : LGH-100RX4-E : 6,600W (14 hours)
LGH-100RX
5-E : 5,390W (14 hours)
1,210W (18%) less
8:00 9:00 12:00 13:00 17:00 19:00 22:00
low high low high low extra low
Monday
to
Thursday
8:00 9:00 12:00 13:00 17:00 22:00
low high low high extra low
Friday
extra low
8:00 22:00
Saturday
to
Sunday
VENTILATION
ENGLISH
Geblasebetrieb
Deutsch
VENTILATION
FRENCHESPANOL
ARIAESTERNA
ITALIANO
Air volume level can be set hourly (max 8
times) and weekly. You can pre-set air
volume according to the predictable
requirement so that LOSSNAY can
automatically operate at only necessary
air-speed at the specified time period,
which saves power consumption while
maintaining the indoor air quality.
Besides, once the weekly timer has been
set, no switching on-off is required.
Dot matrix display
Button
Filter button
"Extra Low" fan speed button
OPERATION button
ON/OFF button
Function selector button
Set time buttons
Back Ahead
OPERATION buttons
Back Ahead
Fan speed Adjustment button
CLEAR button
Timer ON/OFF (DAY) button
Timer MENU (MONITOR/SET) button
Return button
VENTILACIoN
e
7 8
The New Remote Controller PZ-60DR-E enable simple control setting
Can Be Used With AG-150A Centralized Controller
Centralized Controller System
LOSSNAY independent
Interlocked with Air conditioners
Interlocked with City Multi Interlocked with Mr.Slim
City Multi
M-NET transmission line
Mr.Slim LOSSNAY
RX
5
LOSSNAY
RX
5
Slim-LOSSNAY connection cable
LOSSNAY remote
controller
PZ-60DR-E
LOSSNAY remote
controller
PZ-60DR-E
can be connected
LOSSNAY RX
5
(Max 15 unit)
PZ-52SF-E can be used insted of PZ-60DR-E,
However, function is limited and connecting
position is different.
The LOSSNAY remote controller (PZ-60DR-E,
PZ-41SLB-E) can not be used with this system.
PZ-41SLB-E can be connected however function
is limited.
Centralized controller
AG-150A
Power supply unit
(PAC-SC51KUA)
Outdoor unit
Network remote
controller
Mr.Slim
remote controller
LOSSNAY remote
controller
PZ-60DR-E
LOSSNAY remote
controller
PZ-60DR-E
Mr.Slim
outdoor unit
Mr.Slim
indoor unit
Network remote
controller
LOSSNAY
RX
5
LOSSNAY
RX
5
LOSSNAY
RX
5LOSSNAY RX5
LOSSNAY remote
controller
PZ-60DR-E
LOSSNAY
RX
5
Ext. signal source
LOSSNAY remote
controller
PZ-60DR-E
Interlocked with
City Multi indoor units
Interlocked with
Mr. Slim indoor units
LOSSNAY units only
Interlocked with
external devices
Internet
Switching Hub
Hub
LAN
(100BASE-TX)
A Control
Central Control PC
(TG-2000A)
*Ver. 5.50 or later
Remote
Monitoring PC
Hub
DIDO Controller (PAC-YG66DCA)
General Equipment
Temp/Humidity sensor
Watt hour meter
AI Controller (PAC-YG63MCA)
PI Controller (PAC-YG60MCA)
Note : Use a security device such as a VPN router when connecting the
AG-150A to the Internet to prevent unauthorized access.
AG-150A / GB-50A
M-NET
M-NET
Service company
/Sales office
Mobile phone
of service person
Remote
monitoring PC
M-NET
M-NET
adapter
AG -
150
A
Remote monitoring
via a Web browser
Remote monitoring
via a Web browser
VPN
Router
VPN
Router
Modem
Power supply unit
(PAC-SC51KUA)
Lights Ventilation
Modem
Functions
Item
Controllable unit
ON/OFF
Operation mode switching
Temperature setting
Fan speed setting
Air flow direction setting
Schedule operation
Permit / Prohibit
local operation
Indoor unit intake temperature
Error
Test run
Ventilation interlock
External input/output
Description
Up to 50 units/groups.
Run and stop operation for the air conditioner units and general equipment.
(To operate general equipment, PAC-YG66DCA is required.)
Switches between Cool / Dry / Auto / Fan / Heat. (Group of LOSSNAY unit : automatic ventilation/
vent - heat interchange/ normal ventilation) depending on the air conditioner unit.
Auto mode is for City Multi R2 and WR2 series only.
Cool/Dry : 19
(67 ) - 30 (87 ) [14 (57 ) - 30 (87 )]
Heat : 17 (63 ) - 28 (83 ) [17 (63 ) - 28 (83 )]
Auto : 19 (67 ) - 28 (83 ) [17 (63 ) - 28 (83 )]
[ ] in case of using middle-temperature on PDFY, PEFY-VML/VMR/VMS/VMH-by setting DipSW7-1 to ON.
Yet, PEFY-P-VMH-E-F is excluded.
Models with 4 air flow speed settings: Hi/Mid-2/Mid-1/Low
Models with 3 air flow speed settings: Hi/Mid/Low
Models with 2 air flow speed settings: Hi/Low
Fan speed setting (including Auto) varies depending on the model.
Air flow direction angles, 4-angle or 5-angle Swing, Auto (Louver cannot be set)
Weekly schedule can be set by groups based on daily operation pattern.
Individually prohibit operation of each local remote control function
(Start/Stop, Change operation mode, Set temperature, Reset filter).
Measures the intake temperature of the indoor unit only when the indoor unit is operating.
When an error is currently occurring on an air conditioner unit, the afflicted unit and the error code are displayed.
This operates air conditioner units in test run mode.
The ventilation unit (LOSSNAY) is able to automatically start its operation when operation of the interlocked indoor unit starts.
By using optional external input/output adaptor (PAC-YG10HA) you can set and monitor the following.
Input : By level signal : "Batch start/stop", "Batch emergency stop"
By pulse signal : "Batch start/stop", "Enable/disable local remote controller"
Output : "Start/stop", "Error/Normal"
Operations
Display
X
X
*NOTE: Operation and displayed content vary depending on the indoor unit model.
:
Each block
System structure
Controllers are one of the most important and familiar devices in an air conditioning system. Not only does it control to provide
optimum air environment but supports operations to minimize running costs and to preserve energy. Through studies and
development, we've visualized a new system controller meeting needs with versatile options.
With a new coloured touch panel, new functions, and continuation of all the current G-50A functions, AG-150A visualizes its
functions from basic control to advanced operations and bringing an ultimate controller to reality.
– Design your control
with our new centralized controller; AG-150A.
Indoor unit Indoor unit
:
Each floor
:
Each unit
:
Collective
:
Each group
:
Not available
Control
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