Mitsubishi Electric PKFY-P32VGM-E Operating manual

TECHNICAL & SERVICE MANUAL
CONTENTS
1. SAFETY PRECAUTION···························2
2. PART NAMES AND FUNCTIONS············6
3. SPECIFICATIONS····································8
4. OUTLINES AND DIMENSIONS·············10
5. WIRING DIAGRAM·································11
6. REFRIGERANT SYSTEM DIAGRAM····12
7. TROUBLE SHOOTING ··························13
8. DISASSEMBLY PROCEDURE ··············20
9. PARTS LIST···········································23
10. RoHS PARTS LIST································25
<Indoor unit>
[Model names] [Service Ref.]
PKFY-P32VGM-E PKFY-P32VGM-E
PKFY-P40VGM-E PKFY-P40VGM-E
PKFY-P50VGM-E PKFY-P50VGM-E
No. OC310
REVISED EDITION-A
Wall Mounted
Series PKFY
Indoor unit
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
R407C R22
R410A
Note:
•This manual describes only
service data of the indoor
units.
•RoHS compliant products
have <G> mark on the spec
name plate.
•For servicing of RoHS com-
pliant products, refer to the
RoHS Parts List.
Revision:
• RoHS PARTS LIST is added.
•Some descriptions have
been modified.
•Please void OC310.
July 2006
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1SAFETY PRECAUTION
[2] Refrigerant recharging
(1) Refrigerant recharging process
1Direct charging from the cylinder.
·R407C cylinder are available on the market has a syphon pipe.
·Leave the syphon pipe cylinder standing and recharge it.
(By liquid refrigerant)
(2) Recharge in refrigerant leakage case
·After recovering the all refrigerant in the unit, proceed to working.
·Do not release the refrigerant in the air.
·After completing the repair service, recharge the cycle with the specified amount of
liquid refrigerant.
[1] Cautions for service
·After recovering the all refrigerant in the unit, proceed to working.
·Do not release refrigerant in the air.
·After completing the repair service, recharge the cycle with the specified amount of
liquid refrigerant.
Cautions for units utilizing refrigerant R407C
CAUTIONS RELATED TO NEW REFRIGERANT
Do not use the existing refrigerant piping.
The old refrigerant and lubricant in the existing piping
contains a large amount of chlorine which may cause the
lubricant deterioration of the new unit.
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 lubricant
will result.
Use ESTR , ETHER or HAB as the lubricant to
coat flares and flange connection parts.
If large amount of mineral oil enter, that can cause
deterioration of refrigerant oil etc.
Use liquid refrigerant to seal the system.
If gas refrigerant is used to seal the system, the composition
of the refrigerant in the cylinder will change and performance
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 lubricant deterioration.
Use a vacuum pump with a reverse flow check valve.
The vacuum pump oil may flow back into the refrigerant
cycle and cause the lubricant deterioration.
Store the piping to be used during installation
indoors with keep both ends 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. Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
Gravimeter
Unit
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3
[3] 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 3.43MPa·G or over.
2Charge hose ·Only for R407C.
·Use pressure performance of 5.10MPa·G or 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. —
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Cautions for units utilizing refrigerant R410A
Store the piping to be used during installation
indoors and keep both ends of the piping sealed
until just before brazing. (Leave elbow joints, etc.
in their packaging.)
Use ester oil, ether oil or alkylbenzene oil (small
amount) as the refrigerant oil applied to flares
and flange connections.
Charge refrigerant from liquid phase of gas
cylinder.
If the refrigerant is charged from gas phase, composition
change may occur in refrigerant and the efficiency will be
lowered.
Do not use refrigerant other than R410A.
If other refrigerant (R22 etc.) is used, chlorine in refrige-
rant can cause deterioration of refrigerant oil etc.
Use a vacuum pump with a reverse flow check
valve.
Vacuum pump oil may flow back into refrigerant cycle and
that can cause deterioration of refrigerant oil etc.
Use the following tools specifically designed for
use with R410A refrigerant.
The following tools are necessary to use R410A refrigerant.
Keep the tools with care.
If dirt, dust or moisture enter into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigera-
nt will change and the efficiency will be lowered.
Flare tool
Electronic refrigerant
charging scale
Vacuum pump adaptor
Size adjustment gauge
Gauge manifold
Torque wrench
Gas leak detector
Charge hose
Tools for R410A
If dirt, dust or moisture enter into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
If large amount of mineral oil enter, that can cause deterio-
ration of refrigerant oil etc.
Do not use the existing refrigerant piping.
The old refrigerant and lubricant in the existing piping
contains a large amount of chlorine which may cause the
lubricant deterioration of the new unit.
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 lubricant
will result.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
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5
[1] Cautions for service
(1) Perform service after collecting the refrigerant left in unit completely.
(2) Do not release refrigerant in the air.
(3) After completing service, charge the cycle with specified amount of refrigerant.
(4) When performing service, install a filter drier simultaneously.
Be sure to use a filter drier for new refrigerant.
[2] Additional refrigerant charge
When charging directly from cylinder
· Check that cylinder for R410A on the market is syphon type.
· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
Gravimeter
Unit
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No. Specifications
1Gauge manifold ·Only for R410A
·Use the existing fitting specifications. (UNF1/2)
·Use high-tension side pressure of 5.3MPa·G or over.
2Charge hose ·Only for R410A
·Use pressure performance of 5.09MPa·G or over.
3Electronic scale
4Gas leak detector ·Use the detector for R134a, R407C or R410A.
5Adaptor for reverse flow check ·Attach on vacuum pump.
6Refrigerant charge base
7Refrigerant cylinder ·Only for R410A Top of cylinder (Pink)
Cylinder with syphon
8Refrigerant recovery equipment
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2PART NAMES AND FUNCTIONS
● Indoor Unit
PKFY-P32VGM-E
PKFY-P40VGM-E
PKFY-P50VGM-E Air intake Air intake grille
Filter
Air outlet
Guide vane
Auto vane
● Operation buttons
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
Set Temperature buttons
Down
Up
Timer Menu button
(Monitor/Set button)
Mode button (Return button)
Set Time buttons
Back
Ahead
Timer On/Off button
(Set Day button)
Opening the
door.
ON/OFF button
Fan Speed button
Filter button
(<Enter> button)
Test Run button
Check button (Clear button)
Airflow Up/Down button
Louver button
( Operation button)
To preceding operation
number.
Ventilation button
(Operation button)
To next operation number.
On the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button.
● Wired remote controller
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●Display
For purposes of this explanation,
all parts of the display are shown
as lit. During actual operation, only
the relevant items will be lit.
˚F˚C
˚F˚C
ERROR CODE
AFTER
TIMER
TIME SUN MON TUE WED THU FRI SAT
ON
OFF
Hr
AFTER
FILTER
FUNCTION
ONLY1Hr.
WEEKLY
SIMPLE
AUTO OFF
Identifies the current operation
Shows the operating mode, etc.
* Multilanguage display is sup-
ported.
“Centrally Controlled” indicator
Indicates that operation of the re-
mote controller has been prohib-
ited by a master controller.
“Timer Is Off” indicator
Indicates that the timer is off.
Temperature Setting
Shows the target temperature.
Day-of-Week
Shows the current day of the week.
Time/Timer Display
Shows the current time, unless the simple or Auto Off
timer is set.
If the simple or Auto Off timer is set, shows the time
remaining.
“Sensor” indication
Displayed when the remote controller
sensor is used.
“Locked” indicator
Indicates that remote controller but-
tons have been locked.
“Clean The Filter” indicator
Comes on when it is time to clean the
filter.
Timer indicators
The indicator comes on if the corre-
sponding timer is set.
Up/Down Air Direction indica-
tor
The indicator shows the direc-
tion of the outcoming airflow.
“One Hour Only” indicator
Displayed if the airflow is set to
weak and downward during COOL
or DRY mode. (Operation varies
according to model.)
The indicator goes off after one
hour, at which time the airflow di-
rection also changes.
Room Temperature display
Shows the room temperature.
Louver display
Indicates the action of the swing
louver. Does not appear if the
louver is stationary.
(Power On indicator)
Indicates that the power is on.
Fan Speed indicator
Shows the selected fan speed.
Ventilation indicator
Appears when the unit is running in
Ventilation mode.
Caution
●Only the Power on indicator lights when the unit is stopped and power supplied to the unit.
●If you press a button for a feature that is not installed at the indoor unit, the remote controller will display the “Not Available”
message.
If you are using the remote controller to drive multiple indoor units, this message will appear only if he feature is not
present at the parent unit.
●When power is turned ON for the first time, it is normal that “PLEASE WAIT” is displayed on the room temperature indica-
tion (For max. 2minutes). Please wait until this “PLEASE WAIT” indication disappear then start the operation.
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3SPECIFICATIONS
3-1. SPECIFICATION
Item
V•Hz
kW
kW
kW
kW
A
A
—
mm
mm
mm
—
—
k/min
Pa
kW
—
—
[mm(in.)
[mm(in.)
[mm
dB
kg
Cooling capacity
Power
Heat exchanger
Insulator
Air filter
Fan ✕No
Air flow W2
Pipe
dimensions
Unit drain pipe size
Noise level W2
Product weight
Exterior
(munsell symbol)
Fan motor
output
External
static pressure
Liquid
side
Gas
side
Heating capacity
F
a
n
Dimensions
Height
Width
Depth
Electric characteristic
Input
Cooling
Heating
Cooling
Heating
Current
PKFY-P32VGM-E PKFY-P40VGM-E PKFY-P50VGM-E
Single phase 220V-230V-240V · 50Hz / 220V · 60Hz
3.6
4.0
4.5
5.0
0.07
0.07
0.32
0.32
Plastic , white : <0.70Y 8.59/0.97>
340
990
235
Cross fin (Aluminum plate fin and copper tube)
Linflow fan ✕1
0
0.03
Polyethylene sheet
PP honey comb
O.D.20 (PVC pipe VP-20 connectable)
16
5.6
6.3
12-11-10-9
12.7(1/2") / 15.88(5/8")
6.35(1/4") / 9.52(3/8")
43-40-37-34
11.5-10.5-9.5-8
12.7(1/2")
6.35(1/4")
41-38-36-33
Note 1.Rating conditions (JIS B 8615-1)
Cooling :Indoor D.B. 27°C W.B. 19°C
Outdoor D.B. 35°C
Heating : Indoor D.B. 20°C
Outdoor D.B. 7°C W.B. 6°C
W2.Air flow and the noise level are indicated as High – Middium1 – Middium2 – Low .
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3-2. ELECTRICAL PARTS SPECIFICATIONS
Room temperature thermistor
Liquid pipe temperature thermistor
Gas pipe temperature thermistor
Fuse
(Indoor controller board)
Fan motor
(with inner-thermostat)
Fan motor capacitor
Vane motor
Linear expansion valve
Power supply terminal block
Transmission terminal block
MA remote controller terminal block
Symbol
TH21
TH22
TH23
FUSE
MF
C1
MV
LEV
TB2
TB5
TB15
PKFY-P32VGM-E PKFY-P40VGM-E
Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.4kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ
Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.4kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ
Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.4kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ
250V 6.3A
PM4V30-K 220-240V/220V , 50/60Hz
4 pole Output 30W
OFF 125±5;
2.0µF 440V
MP 35 EA DC12V
DC12V Stepping motor drive
Port dimension [3.2 (0 ~ 2000pulse)
(L, N, ;) 330V 30A
(M1, M2, S) 250V 20A
(1,2) 250V 10A
Model
Parts name PKFY-P50VGM-E
Inner-thermostat
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4 OUTLINES AND DIMENSIONS
Knock out hole for right piping Refrigerant pipe.Drain pipe. Wiring hole
Gas pipe
Liquid pipe
Address board
Filter grip
21
21
Knock out hole for under piping Refrigerant piping.Drain pipe. Wiring hole
Service panel (Power supply access)
1/2F / 5/8F
Gas pipe
1/2F
Liquid pipe
1/4F / 3/8F 1/4F
50 32 , 40 Model
( Flexible hose total length 800 ) ( Right side piping
installation )
( Left side piping installation )
Drain pipe (VP-20)
(Front view( to open the grille ))
12 - Louvers ( manual )
Air outlet
(Lower side)
Auto vane
(Left side) (Front view)
Air intake
Air intake
Air intake
Air intake
Knock out hole for left piping Refrigerant pipe.Drain pipe.Wiring hole.
(Right side)
35
700 153
449 86
581 54
31
280
80
60
70
245
50
395400
190
60
70 35
160 40
705 235
Less than 15
198
70
245
60
235
53
340
715 225
340 80 280 233
990
79
Unit : mm
PKFY-P32VGM-E
PKFY-P40VGM-E
PKFY-P50VGM-E
Installation plate balance point hole
49 - [5 hole for tapping screw
Knock out hole for right-rear piping
Right-rear piping hole
( Necessary clearance for Unit installation )
R52.5
R52.5
R52.5 R52.5
Unit center
Right side
Allowing clearances Front view
W1 Sleeves are available on the market. W2 In case of R22 or R407C. W3 This size shows the lower end of through hole.
[90 ~ [100
[75 ~ [80
[90 [75 Through holeSleeve w1
50 w2 32 , 40 , 50 Model
Details of installation plate
14 - [14 hole for bolts
Left-rear piping hole
Knock out hole for left-rear piping
Less than 130
50 or more 150 or more
180 or more
30 or more
425
420
170
190
210
230
0
322 0 35 55 80 130 190 230 272 310 0
35
95
150
205
260
320
345
495
20
75
135
190
245
300
360
405
495
32
0
w3
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