Mitsubishi Electric PLFY-P80VAM User manual

TECHNICAL & SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
Indoor unit
[Model names] [Service Ref.]
PLFY-P80VAM PLFY-P80VAM.UK
PLFY-P100VAM PLFY-P100VAM.UK
PLFY-P125VAM PLFY-P125VAM.UK
No. OC213
INDOOR UNIT
Ceiling Cassettes
Series PLFY
CONTENTS
1. SAFETY PRECAUTION························3
2. PART NAMES AND FUNCTIONS·········5
3. SPECIFICATION ···································7
4. 4-WAY AIR FLOW SYSTEM ·················8
5. OUTLINES AND DIMENSIONS··········12
6. WIRING DIAGRAM ·····························13
7. REFRIGERANT SYSTEM DIAGRAM ····14
8. TROUBLE SHOOTING ·······················15
9. DISASSEMBLY PROCEDURE ···········20
10. PARTS LIST ········································23
11. OPTIONAL PARTS ·····························26
R407C R22
No. OC213
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3
SAFETY PRECAUTION
1
Cautions for devices that use R407C refrigerant.
· Do not use the existing refrigerant piping.
-The old refrigerant and lubricating oil in the existing piping contains a large amount of chlorine which may cause the lubricating
oil of the new unit to deteriorate.
· Use “low residual oil piping”.
-If there is a large amount of residual oil (hydraulic oil, etc.) inside the piping and joints, deterioration of the lubricating oil will
result.
· Store the piping to be used during installation indoors and keep both ends of the piping sealed until just before
brazing. (Store elbows and other joints in a plastic bag.)
-If dust, dirt, or water enters the refrigerant cycle, deterioration of the oil and compressor trouble may result.
· Use Suniso 4GS or 3GS (small amount) as the lubricating oil to coat flares and flange connection parts.
-The lubricating oil used with the air conditioner is highly hygroscopic. If it is used, water may be mixed in and deterioration
of the lubricating oil may result.
· Use liquid refrigerant to charge the system.
-If gas refrigerant is used to charge the system, the composition of the refrigerant in the cylinder will change and perfor-
mance may drop.
· Do not use a refrigerant other than R407C.
-If another refrigerant (R22, etc.) is used, the chlorine in the refrigerant may cause the lubricating oil to deteriorate.
· Use a vacuum pump with a reverse flow check valve.
-The vacuum pump oil may flow back into the refrigerant cycle and cause the lubricating oil to deteriorate.
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4
[1] Service tools
Use the below service tools as exclusive tools for R407C refrigerant.
No. Tool name Specifications
1Gauge manifold ·Only for R407C.
·Use the existing fitting SPECIFICATIONS. (UNF7/16)
·Use high-tension side pressure of 35kgf/cm2or over.
2Charge hose ·Only for R407C.
·Use pressure performance of 52kgf/cm2or over.
3Electronic scale
4Gas leak detector ·Use the detector for R134a or R407C.
5Adapter for reverse flow check. ·Attach on vacuum pump.
6Refrigerant charge base.
7Refrigerant cylinder. ·For R407C ·Top of cylinder (Brown)
·Cylinder with syphon
8Refrigerant recovery equipment.
[2] Notice on repair service
·After recovering all the refrigerant in the unit, work may be started.
·Do not release the refrigerant in the air.
·After completing the repair service, recharge the system with the specified amount of the
liquid refrigerant.
[3] Refrigerant recharging
(1) Refrigerant recharging process
Direct charging from the cylinder.
·Confirm that the cylinder is suitable for syphoning.
·Raise the cylinder and recharge the unit by syphoning liquid refrigerant.
(2) Recharge when refrigerant leakage has occurred.
·After recovering all the refrigerant in the unit, work may be started.
·Do not release the refrigerant in the air.
·After completing the repair service, recharge the system with the specified amount of
the liquid refrigerant.
Gravimeter
Unit
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5
PART NAMES AND FUNCTIONS
2
● Indoor (Main) Unit
● Remote controller
● Operation buttons
[PAR-F25MA]
● Once the controls are set, the same operation mode can
be repeated by simply pressing the ON/OFF button.
Press this button to switch the cooling,
electronic dry (dehumidify), automatic
and heating modes.
OPERATION SWITCH button
This sets the room temperature. The
temperature setting can be performed
in 1:units
Setting range
Cooling 19:to 30:
Heating 17:to 28:
TEMPERATURE ADJUSTMENT button
This switches between continuous
operation and the timer operation.
TIMER button
This switches between the operation
and stop modes each time it is pressed.
The lamp on this button lights during
operation.
ON/OFF button
Only press this button to perform an
inspection check or test operation.
Do not use it for normal operation.
CHECK-TEST RUN button
This switches the horizontal fan motion
ON and OFF.
(This button does not operate on this
model)
LOUVER button
This adjusts the vertical angle of the
ventilation.
AIR DIRECTION button
This resets the filter service indication
display
FILTER button
This sets the current time, start time
and stop time.
TIME SETTING button
This sets the ventilation fan speed.
AIR SPEED button
Auto Air Swing Vane
Disperses airflow up and
down and adjusts the angle
of airflow direction.
Grille
Filter
Removes dust and pollutants
from intake air
Horizontal Air Outlet
Sets airflow to horizontal automatically
during cooling or dehumidifying.
Air Intake
Intakes air from room.
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6
Caution
●Only the POWER display lights when the unit is stopped and power supplied to the unit.
●When the central control remote control unit, which is sold separately, is used the ON/OFF button, OPERATION SWITCH
button and TEMPERATURE ADJUSTMENT button do not operate.
●“NOT AVAILABLE” is displayed when the AIR SPEED button are pressed.This indicates that this room unit is not equipped
with the fan direction adjustment function and the louver function.
●When power is turned ON for the first time, it is normal that “H0” is displayed on the room temperature indication (For max.
2minutes). Please wait until this “H0” indication disappear then start the operation.
CENTRALLY
CONTROLLED display
This indicates when the unit is con-
trolled by optional features such as
central control type remote controller.
TIMER display
This indicates when the continuous
operation and time operation modes
are set.
It also display the time for the timer
operation at the same time as when
it is set.
OPERATION MODE display
This indicates the operation mode.
STANDBY display
The [STANDBY] symbol is only dis
played from the time the heating
operation starts until the heated air
begins to blow.
DEFROST display
This indicates when the defrost oper-
ation is performed.
CHECK display
This indicates when a malfunction
has occurred in the unit which should
be checked.
CLOCK display
The current time , start time and stop
time can be displayed in ten second
intervals by pressing the time setting
button. The start time or stop time is
always displayed during the timer
operation.
●Display
In this display example on the bot-
tom left, a condition where all dis-
play lamps light is shown for expla-
nation purposes although this differs
from actual operation.
Operation lamp
This lamp lights during operation,
goes off when the unit stops and
flashes when a malfunction occurs.
POWER display
This lamp lights when electricity is
supplied to the unit.
SET TEMPERATURE display
This displays the selected setting
temperature.
FAN SPEED display
ROOM TEMPERATURE display
The temperature of the suction air is
displayed during operation. The dis-
play range is 8° to 39°C. The display
flashes 8°C when the actual temper-
ature is less than 8° and flashes
39°C when the actual temperature is
greater than 39°C.
display
This display lights in the check mode
or when a test operation is per-
formed.
CHECK MODE
TEST RUN
FILTER display
This lamp lights when the filter needs
to be cleaned.
AIR DIRECTION display
The selected fan speed is displayed.
This displays the air direction.
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7
SPECIFICATION
3
3-1. Specification
Note 1. Rating conditions(JIS B 8615)
Cooling : Indoor : D.B. 27°C W.B. 19.5°C
outdoor : D.B. 35°C
Heating : Indoor : D.B. 21°C
outdoor : D.B. 7°C W.B. 6°C
Note 2. The number indicated in < > is just for the grille.
Note 3. Air flow and the noise level are indicated as High-Middium 1-Middium 2-Low.
Item
V·Hz
kcal/h
BTU/h
kW
kcal/h
BTU/h
kW
kW
kW
A
A
%
%
mm
mm
mm
k/min
Pa
kW
[mm
[mm
[mm
dB
kg
Cooling capacity
Power
Heat exchanger
Insulator
Air filter
Fan ✕No
Air flow #3
Pipe
dimensions
Drain pipe size
Noise level
Exterior
(munsell symbol)
Fan motor
output
External
static pressure
Liquid
side
Gas
side
Heating capacity
F
a
n
Dimensions
<Grille>
Height
Width
Depth
Electric characteristic
Power
supply
input
Cooling
Heating
Cooling
Heating
Cooling
Heating
Rated
current
Power
factor
PLFY-P80VAM.UK PLFY-P100VAM.UK PLFY-P125VAM.UK
Single phase 220V-240V 50 Hz
8,000
31,800
9.3
9,000
35,800
10.5
0.18
0.18
0.86
0.86
95 - 87
95 - 87
10,000
39,600
11.6
11,200
44,500
13.0
0.30
0.30
1.43
1.43
95 - 87
95 - 87
12,500
49.700
14.5
14,000
55,600
16.3
0.34
0.34
1.64
1.64
94 - 86
94 - 86
30-28-25-22
43-41-38-35
30<5>
-Unit : Galvanized sheets with gray heat insulation · Grille : ABS resin Munsell<0.70Y 8.59/0.97>
840<950>
840<950>
Cross fin
Turbo fan ✕1
28-26-23-20
0
Polyethylene sheet
PP honey comb fabric (long life)
O.D.32 (PVC pipe O.D.32 connectable)
41-39-36-33
30<5>
258<30>
22-20-18-16
0.070
15.88(5/8")
9.52(3/8")
37-35-32-30
24<5>
298<30>
0.120
19.05(3/4")
9.52(3/8")
Product weight
<Grille>
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8
3-2. Electrical parts specifications
Parts name
Model Symbol
TH21
TH22
TH23
FUSE
MF
C1
MV
DP
DS
LEV
H2
TB2
TB5
Resistance 0:/15k", 10:/9.6k", 20:/6.3k", 25:/5.4k", 30:/4.3k", 40:/3.0k"
Resistance 0:/15k", 10:/9.6k", 20:/6.3k", 25:/5.4k", 30:/4.3k", 40:/3.0k"
Resistance 0:/15k", 10:/9.6k", 20:/6.3k", 25:/5.4k", 30:/4.3k", 40:/3.0k"
250V 6.3A
240V 21.8W
(L, N, ;) 330V 30A
(M1, M2, S) 250V 30A
Liquid pipe thermistor
Gas pipe thermistor
Fan motor capacitor
Vane motor
Drain-up mechanism
Drain sensor
Linear expansion valve
PLFY-P80VAM.UK PLFY-P100VAM.UK PLFY-P125VAM.UK
Room temperature
thermistor
Fuse
(Indoor controller board)
Fan motor
(with inner-thermostat)
Inner-thermostat
(Fan motor)
Electric heater
(Condensation proof)
Power supply terminal
block
Transmission terminal
block
6-pole OUTPUT 120W
D176P120MS
6-pole OUTPUT 70W
D17B6P70MS
MSBPC20M04
DC12V 300
" /phase
PLD-12230ME-1
INPUT 12/10.8W 24R/Hr
Thermistor resistance 0:/6k", 10:/3.9k", 20:/2.6k", 25:/2.2k", 30:/1.8k", 40:/1.3k"
DC12V Stepping motor drive / Port dimension [5.2 (0~2000pulse)
EDM-804ME
OFF 130:i5:
ON 90:i20:
3.5+440V 7.0+440V
44-WAY AIR FLOW SYSTEM
4-1. Placement of the air outlets
For this grille, the discharge direction comes in 11 patterns.
Also, by setting the dip switches (SWA and SWB) on the indoor board to the appropriate settings, you can adjust the air flow
and speed. Select the settings from the Table below according to the location in which you want to install the unit.
1) Decide on the pattern of the airflow direction.
Discharge direction
pattern
4-direction<Table 1> 3-direction 2-direction Note :
For 3 and 2-directional,
please use the air outlet
shutter plate (option).
Pattern 1 Factory setting Pattern 4 One air outlet
fully closed Pattern 6 Two air outlets fully closed
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9
4-2. Fresh air intake (Location for installation)
At the time of installation, use the duct holes (cutout) located at the positions shown in following diagram, as and when required.
Note :
Be sure to add 135mm to the dimensions in the diagram that are marked with a “w” if installing a multi function casement
(Option)
A.B
SW5240V220V SWA
3
2
1
SWB
2
3
41
2
3
4
(RED)
ADDRESS
CN43
(RED)
ADDRESS
CN82
1
Standard
2.7m
3.0m
3.3m
2
High ceiling 1
3.0m
3.3m
3.5m
3
High ceiling 2
3.5m
3.5m
—
1
2
3
4
5
6
7
8
CONNECTION
No.
SW14
0
SWC
SW1
87654321
OFF
ON
10 9
00 SW11
SW12
1ST.DIGIT2ND.DIGIT
3RD.DIGIT
4 direction
3 direction
2 direction
SWA
SWB
PLFY-P80VAM.UK
PLFY-P100VAM.UK
PLFY-P125VAM.UK
4
3
2
1
Standard
3.2m
3.6m
4.0m
2
High ceiling 1
3.6m
4.0m
4.2m
3
High ceiling 2
4.2m
4.2m
—
4 direction
3 direction
2 direction
SWA
SWB
4
3
2
2) According to the number of air outlets and height of the ceiling to install the unit, be sure to set the switches
(SWA, SWB) on the indoor board to the appropriate setting.
Correspondence of ceiling heights to numbers of air outlets.
Fresh air intake hole
Fresh air intake hole diagram
3 - {2.8
Burring hole {125
Burring hole pitch
{100
(Cut out hole)
Refrigerant pipe Drain pipe Ceiling surface
120_
120_
w158
4-3. Interlocking operation method with
duct fan (Booster fan)
Whenever the indoor unit is operating, the duct fun also
operates.
(1)Connect the optional multiple remote controller
adapter(PAC-SA88HA-E)to the connector CN51 on the
indoor controller board.
(2)Drive the relay after connecting the 12V DC relay
between the Yellow and Orange connector lines.
(w)Use a relay under 1W.
MB: Electromagnetic switch power relay for duct fan.
X: Auxiliary relay (12V DC LY-1F)
CN51
Multiple remote
controller adapter
PAC-SA88HA-E
Indoor controller board
Distance between indoor
controller board and relay
must be within 10m.
Be sure to secure insulation
material by tape etc.
5Green
Yellow
Orange
Connector (5P)
Package side Multiple remote
controller adapter
PAC-SA88HA-E Be sure to secure insulation
material by tape etc.
Installation at site
CN51
on
indoor unit
board Red
Brown
1MB
~
CN51
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4-4. Fixing of horizontal vane
The horizontal vane of each air outlet can be fixed according to the environment, in which it is installed.
Setting procedure
1) Turn off the main power supply (Turn off the breaker).
2) Disconnect the vane motor connector of the direction of the arrow by pressing the unlocking button as shown in the figure
below.
Electrically insulate the disconnected connector with vinyl tape.
Vane motor
Horizontal vane
Connector Unlocking button
Vane motor
3)The vane angle can be fixed by turning the vane by hand.
The vane should remain within the angles shown in the table below.
Measured standard
position of the grille
Horizontal vane
Standard of
horizontal position
Dimension A (mm) 26 29 33 37
Level 30°
(Min.) Downward 45°Downward 55°Downward 70° (Max.)
wDimension between 26mm and 37mm can be arbitrarily set.
Caution Do not set the dimension out of the range.
It could cause dew drips and stains on the ceiling, etc. and the unit may be damaged.
<Set range>
10
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