Mitsubishi Electric Lossnay VL-220CZGV-EB 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
VL-220CZGV-E
VL-220CZGV-EB
Nameplate
April 2016 No. U209
Remote controller (Optional)
PZ-61DR-E
PZ-43SMF-E
Filter (Optional)
P-220SHF-E
P-220EMF-E
P-220F-E

Contents
1. Safety precautions ....................................................................... 3
2. Specifications ............................................................................... 4
3. Names and functions of components .......................................... 5
4. Outside dimensions................................................................... 6-8
5. Electrical wiring diagram ............................................................. 9
6. Circuit board diagrams ..........................................................10-11
7. Troubleshooting .................................................................... 12-28
8. Before receiving repair requests ............................................... 29
9. Service inspection list ................................................................ 29
10. Overhauling procedures
....................................................... 30-38
11. Parts catalog
........................................................................ 39-55
VL-220CZGV-E ............................................................... 40-47
VL-220CZGV-EB............................................................. 48-55

─3 ─
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.
Warning
Modification is prohibited
Do not modify the unit.
(Failure to heed this warning may result
in electric shock, fire and/or injury.)
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.)
Check insulation
Upon completing repair work, always measure the
insulation resistance. Verify that it is at least 10 MΩ
(with a 500-V DC insulation resistance tester), and
then turn on the power.
(Inadequate insulation may result in
electric shock.)
Incorrect handling of the product may
result in serious injury or death.
Caution Incorrect handling of the product may result in injury or
damage to properties including buildings and equipment.
Proper electric work
Use the electric wires designated for electric work,
and conduct electric work in accordance with your
local "Electric Installation Engineering Standard",
the "Indoor Wiring Regulations" and the installation
instructions.
(Improper connection or wiring installation
may result in electric shock and/or fire.)
Replace damaged and/or degraded parts
Be sure to replace the power cord and lead wires if
they are damaged and/or degraded.
(Failure to heed this warning may result
in electric shock and/or fire.)
Use proper parts and tools
For repair, be sure to use the parts listed in the
service parts catalog of the applicable model and
use the proper tools.
(Failure to heed this warning may result in
electric shock, fire and/or injury.)
Caution against
electric shock
Prohibited
Be sure to follow
this instruction.
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 electric shock.)
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.
Caution for 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.)
Notes for servicing
●Inspect the earth condition, and repair it if it is incomplete. Make sure that a power supply isolator or an over-
load protection device is installed, if it is not installed, recommend the customer to install one.
Be sure to follow
this instruction.
Wear gloves
Wear gloves when servicing.
(Failure to heed this caution may result in
injury to your hands from sharp metal or
other edges.)
1. Safety precautions
Be sure to follow
this instruction.
Be sure to follow
this instruction.
Be sure to follow
this instruction.
Be sure to follow
this instruction.
Prohibited

─4 ─
2. Specifications
Model name VL-220CZGV-E, VL-220CZGV-EB
Heat exchange system Heat recovery ventilating system
Heat exchanger material Water-resistant paper sensible heat exchanger
Cladding Galvanized steel sheet
Heat insulation material Noncombustibility polyethylene foam
Motor EC motor
Filter Non-woven fabrics filter (Gravitational method 82%, EN779: 2012: G3)
Surrounding air condition Shall be between 0°C and 40°C, 80%RH or less
Suction air condition Shall be lower than 40°C, 95%RH
Supply fan operation under low outdoor
temperature
0°C to -5°C: Intermittent operation 24 min ON, 6 min OFF
-5°C or less: Continuous supply air stopped
Function
Heat recovery ventilation/ Bypass ventilation, Fan speed 1,2,3,4
(When the optional motorized damper (P-133DUE-E) is used, bypass
ventilation mode can be switched.)
Electrical power supply 220-240 V/50 Hz, 220 V/60 Hz
Ventilation mode Heat recovery mode
Fan speed Fan speed 4 Fan speed 3 Fan speed 2 Fan speed 1
Running current (A) 0.60 0.29 0.18 0.11
Input power (W) 80 35 18.5 8.5
Air volume (m3/h) 230 165 120 65
(L/S) 64 46 33 18
External static pressure (Pa) 164 84 44 13
Temperature exchange efficiency (%) 82 84 85 86
Noise (dB) 31 25 19 14
Weight (kg) VL-220CZGV-E: 31, VL-220CZGV-EB: 32
Insulation resistance 10 MΩor more
Dielectric strength 1000 V AC 1 minute
Model name PZ-61DR-E
Power supply requirement 12 V DC (Supplied from Lossnay unit)
Power consumption 0.3 W
Transmission cable Non polarized 2-wire (0.3 mm2(AWG22) sheathed cable)
Total wiring length 200 m maximum
Number of controllable Lossnay units 15 Lossnay units maximum (Max. 2 remote controllers installable)
Environmental condition Temperature: 0 to 40°C, Humidity: 30% to 90% relative humidity (no
condensation)
Size 120 x 120 x 19 mm
Weight 0.25 kg
Color Munsell 1.0Y9.2/0.2
Attention:
•
The running current, the input power, the efficiency and the noise are based on the rating air volume, and 230 V/50 Hz.
The noise is measured at 1.5 m under the center of the unit in an anechoic chamber.
• Temperature exchange efficiency (%) is based on winter condition.
• Mitsubishi Electric measures figures in the chart according to Japan Industrial Standard (JIS B 8628), therefore
the characteristic curves are measured by chamber method.

─5 ─
3. Names and functions of components
Supply air filter fixing knob
Release it to remove the
supply air filter case.
(3 locations)
Exhaust air filter fixing knob
Release it to remove the
exhaust air filter case.
(2 locations)
Lossnay core
Lossnay core exchanges
heat between the supply air
and the exhaust air.
Supply air filter case
It holds the supply air filter or
high efficiency supply air filter.
Exhaust air filter case
It holds the exhaust air
filter or medium efficiency
exhaust air filter.
Drain pan (supply air side)
It holds dew condensation
water that occurs inside the
Lossnay unit.
Drain outlet
It is for discharging dew
condensation water that has
built up in the drain pan to
outside the room.
Supply air filter
It removes insects, pollen,
dirt, dust, and other particles
from the outside air that is
taken into the room.
Exhaust air filter
It prevents Lossnay core
from clogging.
After the supply air filter case is
removed
Piping example
• When connecting the RA (return air) to a bathroom, be
sure to branch the pipe into two lines and intake return
air from two locations, the bathroom and living room
(kitchen/dining room).
RA 1
OA
Name of Connection Point Connection Location
RA
(Return air)
RA1 For intake from living room, toilet, wash
basin, bathroom, etc.
RA2* For optional air duct switching damper
(P-133DUE-E)
Exclusive for intake from living room, toilet,
wash basin, bathroom, etc.
RA3*
EA
(Exhaust air) For exhaust air of inside air
OA
(Outside air) For intake of outside air
SA
(Supply air) For air supply opening to living room
* When RA2 and RA3 are used, use grills equipped with filter.
Lossnay
EA
(exhaust air)
OA
(outside air)
SA
(supply air)
Bath
(Bathroom)
RA1
(return air)
Outdoor
side
Indoor
side
RA3
RA2
Kitchen /
dining room
Air duct
switching damper
(P-133DUE-E)
(Optional)

─6 ─
4. Outside dimensions
VL-220CZGV-E
Lossnay unit
80
8
174 119 33
8
234
362
ij
146
ij
124
ij
98
31
848
116850
775
20
271 229
295
199
86143
139
885
815
720
151
320
31
Drain outlet
Ceiling suspension
Duct connecting
Duct connecting
SA
(supply
air)
RA1
(return air)
EA
(exhaust
air)
OA
(outside air)
Duct connecting Duct connecting
Drain pan
Working space (required space around Lossnay unit)
720
EA SA
OA RA1
245
86
199
320
RA1
OA
234295
850
Drain outlet
Leave at least
100 mm of space
Leave at least
650 mm of space
Leave at least
700 mm of space
Leave at least
900 mm of space
Space required for
removing and inserting
Circuit
Air duct switching damper
(Optional)
Air duct
switching damper
(Optional)
Unit (mm)

─7 ─
VL-220CZGV-EB
80
8
174
20
119 33
8
234
362
ij146
ij124
ij98
31
848
116850
775
20
10
271 229
295
199
86143
139
885
815
720
151
320
31
20
Ceiling suspension
Duct connecting
Duct connecting
SA
(supply
air)
RA1
(return air)
EA
(exhaust
air)
OA
(outside air)
Duct connecting Duct connecting
Insulation
Drain pan
720
EA SA
OA RA1
245
86
199
320 20
RA1
OA
234295
850
Drain outlet
100 mm of space
650 mm of space
700 mm of space
900 mm of space
Space required for
removing and inserting
Circuit
Drain outlet
Air duct switching damper
(Optional)
Lossnay unit
Working space (required space around Lossnay unit)
Leave at least
Leave at least
Leave at least
Leave at least
Air duct
switching damper
(Optional)
Unit (mm)

─8 ─
PZ-61DR-E
Unit (mm)
PZ-43SMF-E
Unit (mm)
P-220SHF-E, P-220EMF-E, P-220F-E
Model Dimension The number of
filters per set Applicable model
ABC
P-220SHF-E 362 189 15 2
VL-220CZGV-E
VL-220CZGV-EB
P-220EMF-E 353 183 15 2
P-220F-E 355 184 15 2
Note:
• Lossnay unit is provided with one set of the filters.
Unit (mm)

─9 ─
5. Electrical wiring diagram
VL-220CZGV-E, VL-220CZGV-EB
7
8
9
10
S
A
B
1
2
1
2
N
L
N
PE
L
M
1
M2
GM
CN7
CN118
CN119
CN10
CN9
LED6
TAB3,4
TAB2TAB5 TAB1
TH1(OA)
TM1
CN19
CN18
CN22
SW5
SW6
SW2
3
TM2
TB5
TM4
TM3
PZ-61DR-E
PZ-43SMF-E
LED3
LED4
LED2
LED1
REACTOR
2nd Lossnay unit
(Max. 2 units)
Lower Printed
Circuit Board
(Power circuit board)
DAMPER
(Option)
Upper Printed
Circuit Board
(Control circuit board)
Definition of symbols
M1: Motor for exhaust fan
M2: Motor for supply fan
GM: Motor for By-pass damper
TH1: Thermistor for outside air
SW2,5: Switch (Function selection)
SW6: Switch (Motorized damper (option) selector)
TM1: Terminal block (Power supply)
TM2: Not in use
TM3: Not in use
TM4: Terminal block (Transmission cable)
TB5: Not in use
TAB1, TAB2, (TAB5): Connector (Power supply)
TAB3,TAB4: Connector (Reactor)
CN7: Connector (Motor for By-pass damper)(Option)
CN9: Connector (Fan motor)
CN10: Connector (Fan motor)
CN18: Connector
CN118: Connector
CN19: Connector
CN119: Connector
CN22: Connector (Thermistor OA)
LED1: Inspection indicator lamp
LED3:
Remote controller power supply indicator lamp
LED4, LED6: Power supply indicator lamp
SYMBOL : Terminal block
: Connector on PCB
* TM1, TM4 shown in dotted lines are field work.
* CN7 (DAMPER) is optional.
* Be sure to connect the earth wire.
* A power supply isolator must be installed.
* Always use an isolator for the main switch power connection.
* Select proper circuit breaker according to the electrical current information in the chart below.
Inrush current after power supply ON 10 ms 6.1 A
100 ms 3.6 A

─10 ─
1s digit10s digit
Fed with power: lit
Not fed with power: unlit
Lot number indication
Remote controller
power supply indicator
(LED3 Green)
Bypass monitor output
Pre-heater output
(Between 7and 0)
During bypass mode: 0 ȍ
During heat recovery mode:

ȍ
Malfunction monitor output
(Between 8and 0)
Error: 0 ȍ
Normal: ȍ
Operation monitor output
(Between 9and 0)
When Lossnay is operating: 0 ȍ
When Lossnay is stopped:

ȍ
Monitor output
COM
Remote controller
(PZ-61DR-E, etc.)
10 to 13 V DC
External control input
Power circuit board
5 V DC (Insulated)
Power for the circuit
12 to 14 V DC
(Insulated)
GND
(Insulated)
Fed with power: lit
Not fed with power: unlit
SW6
Air duct switching damper selector
(Only when the air duct
switching damper (P-133DUE-E)
is installed)
SW2
SW5
Function selection
switch
Indication of the
microcomputer
software version
Error indicator
(LED1 Green)
Normal: unlit
Error: blinking
During delay operation: lit
Power supply indicator
for the circuit
(LED4 Red)
Outdoor air (OA)
thermistor
6. Circuit board diagrams
Circuit board diagram and check points
(1)Control circuit board