Mitsubishi Electric City Multi PCFY-P15NGMU-E Operating manual

TECHNICAL & SERVICE MANUAL
CONTENTS
1. FEATURES ··········································2
2. PART NAMES AND FUNCTIONS·······4
3. SPECIFICATIONS ·······························6
4. OUTLINES AND DIMENSIONS···········9
5. WIRING DIAGRAM····························13
6. REFRIGERANT SYSTEM DIAGRAM ··14
7. MICROPROCESSOR CONTROL······15
8. TROUBLE SHOOTING······················22
9. DISASSEMBLY PROCEDURE··········29
10. PARTS LIST······································33
11. RoHS PARTS LIST ··························40
12. OPTIONAL PARTS ··························47
PCFY-P15NGMU-E
PCFY-P24NGMU-E
PCFY-P30NGMU-E
PCFY-P36NGMU-E
INDOOR UNIT
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
August 2006
R410A R22
No. OC343
REVISED EDITION-A
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
compliant products, refer to
the RoHS PARTS LIST.
Revision:
• RoHS PARTS LIST is added.
• Some descriptions have been
modified.
• Please void OC343.
[Models]
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2
1FEATURES
Models Cooling capacity / Heating capacity
PCFY-P15NGMU-E 15,000 / 17,000 Btu/h
PCFY-P24NGMU-E 24,000 / 27,000 Btu/h
PCFY-P30NGMU-E 30,000 / 34,000 Btu/h
PCFY-P36NGMU-E 36,000 / 40,000 Btu/h
Indoor unit
1. EASY TO CLEAN ; FLOCKLESS VANE
With our original air current control mechanism, a flockless vane is
newly adapted.
The flockless vane prevents the condensation on the vane.
By changing the vane to the flockless type, the unit can be cleaned
much easier with mild household detergent.
2. NEW MATERIALS FOR BETTER OIL RESISTANCE
We have changed the materials of grill, filer, fan and fan casing from ABS to P.P. (polypropylene) for better oil
resistance. As a result, oil crazing is cut in half.
3. SIMPLIFIED INSTALLATION WORK (DIRECT SUSPENDING METHOD)
Simplified the installation work by changing the suspending method to the direct suspending method (suspending
the unit directly from the suspension fixture).
In this way, the unit can be attached to the suspension fixture without removing the installation parts off (Only the
side cover is removed). This method is much simpler than the “One-time installation method”.
Unifies the air speed
with the vane
Sending the air to the upper
area of the vane
Prevents the air comes from
cntering from outside the unit
Protruding portion B
Protruding portion A
Flockless vane
Air outlet
B
A
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3
4. IMPROVING EFFICIENCY OF PIPING WORK
11Removed the knockout work by separating the piping
space from the air outlet for efficiency of the piping work.
wKnockout work is needed for the top part. When option-
al drain-up machine is installed, the refrigerant pipe
exits out from the top.
wPlease move the rubber plug for the unit to the right joint
when drainage pipe exits from the left side.
22Improved the flexibility by making it possible for
drainage pipe to exit not only from the right side
back but also from the left side back.
Back panel
U-cut
Side panel
L : Liquid pipe
G : Gas pipe
D : Drain pipe
LL
G
D
D
G
open open
Drain pan Rubber plug
Insulation cover
(attached)
Drain pipe
(purchased locally)
Band
(attached)
Insulation
cover
Joint coupler
(attached)
5. EASY MAINTENANCE FILTER ; NO MAINTENANCE NECESSARY FOR 2500 HOURS
The new long-life air filter can be used continuously 2500 hours without maintenance (at general office use).
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4
2PART NAMES AND FUNCTIONS
Air outlet
Intake grille Air intake
Left/right guide vanes
Change the direction of airflow
from the horizontal blower.
Long-life filter
Removes dust and foreigh matter from air coming in
through the grille (Recommended cleaning interval :
Approx, every 2,500 operating hours)
Up/down guide vanes
Change the direction of airflow from the
vartical blower.
● Remote controller
● Operation buttons
●Indoor Unit
[PAR-21MAA]
● Once the controls are set, the same operation mode can be repeated
by simply pressing the ON/OFF button.
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
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5
●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
Low and downward during COOL
or DRY mode. (Operation varies
according to model.)
The indicator goes off after one
hour, at which time the airflow
direction 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 operate multiple indoor units, this message will appear only if the feature is not
present at every unit connected.
●When power is turned ON for the first time, it is normal that “PLEASE WAIT” is displayed on the room temperature
indication (For max. 2minutes). Please wait until this “PLEASE WAIT” indication disappear then start the operation.
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6
3SPECIFICATIONS
3-1. SPECIFICATIONS
Note 1. Rating conditions
Cooling : Indoor : D.B. 80 _ F W.B. 67 _ F
outdoor : D.B. 95 _ F W.B. 75 _ F
Heating : Indoor : D.B. 70 _ F
outdoor : D.B. 47 _ F W.B. 43 _ F
W2. Air flow and the noise level are indicated as Low - Medium2 - Medium1 - High.
Item
V·Hz
Btu/h
Btu/h
kW
kW
A
A
—
in.
in.
in.
—
—
CFM
CFM
Pa
kW
—
in.
in.
in.
dB
lb
Cooling capacity
Power
Heat exchanger
Air filter
Fan ✕No
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
PCFY-P15NGMU-E PCFY-P24NGMU-E PCFY-P30NGMU-E PCFY-P36NGMU-E
Single phase 208/230V 60Hz
15,000
17,000
0.08
0.08
0.40
0.40
24,000
27,000
0.09
0.09
0.45
0.45
30,000
34,000
0.23
0.23
1.12
1.12
36,000
40,000
0.27
0.27
1.32
1.32
420-490-570-640
380-470-530-600
0.07
32-34-37-39
75
Unit : Munsell<0.70Y 8.59/0.97>
51-9/16
26-25/32
Cross fin(Aluminum plate fin and copper tube)
Sirocco fan ✕3
0
PP honey comb
5/8"
3/8"
1" I.D. (PVC pipe VP-20 connectable)
5/8" / 3/4"(compatible)
3/8"
8-9/32 10-5/8
640-710-810-880
600-670-770-830
0.09
36-38-41-43
82
63-3/4
Sirocco fan ✕4
920-990-1120-1230
870-930-1050-1160
0.15
37-39-42-44
95
39-5/8
Sirocco fan ✕2
280-350-390-420
250-310-350-380
0.054
1/2"
1/4"
29-33-36-38
60
DRY
Air flow W2
WET
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7
3-2. ELECTRICAL PARTS SPECIFICATIONS
Parts name
Model Symbol
TH21
TH22
TH23
FUSE
MF
C1
MV
LEV
TB2
TB5
TB15
250V 6A
OFF 266˚F ±41˚F
(L1, L2, GR) 330V 30A
(M1, M2, S) 250V 20A
(1, 2) 250V 10A
3µF ✕440V
Inner-thermostat
4µF ✕440V 5µF ✕440V 7µF ✕440VFan motor capacitor
Vane motor
Linear expansion valve
PCFY-P15NGMU-E PCFY-P24NGMU-E PCFY-P30NGMU-E PCFY-P36NGMU-E
Room temperature
thermistor
Liquid pipe temperature
thermistor
Gas pipe temperature
thermistor
Fuse
(Indoor controller board)
Fan motor
(with inner-thermostat)
Power supply
terminal block
Transmission
terminal block
MA remote controller
terminal block
DC12V Stepping motor drive
port [3.2 (0~2000pulse) EDM-40YGME
4-Pole Output 54W
D09B4P54MS
MP35EA
DC12V MP42EA DC12V
4-Pole Output 70W
D09C4P70MS 4-Pole Output 90W D10C4P90MS 4-Pole Output 150W D10D4P150MS
DC12V Stepping motor drive
port [5.2 (0~2000pulse) EDM-80YGME
Resistance 30_F/15.8k", 50_F/9.6k", 70_F/6.0k", 80_F/4.8k", 90_F/3.9k", 100_F/3.2k"
Resistance 30_F/15.8k", 50_F/9.6k", 70_F/6.0k", 80_F/4.8k", 90_F/3.9k", 100_F/3.2k"
Resistance 30_F/15.8k", 50_F/9.6k", 70_F/6.0k", 80_F/4.8k", 90_F/3.9k", 100_F/3.2k"
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8
3-3. NOISE CRITERION CURVES
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE THRESHOLD OF HEARING
FOR CONTINUOUS NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
PCFY-P15NGMU-E High
NOTCH
Medium1
Medium2
Low
38
SPL(dB)
36
33
29
LINE
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
PCFY-P24NGMU-E High
NOTCH
Medium1
Medium2
Low
39
SPL(dB)
37
34
32
LINE
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
PCFY-P30NGMU-E High
NOTCH
Medium1
Medium2
Low
43
SPL(dB)
41
38
36
LINE
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
PCFY-P36NGMU-E High
NOTCH
Medium1
Medium2
Low
44
SPL(dB)
42
39
37
LINE
UNIT
About 1.4m
MICROPHONE
CEILING
1m
1m
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9
OUTLINES AND DIMENSIONS
4
9
2-7/16(62) 1-15/16(49)
1-3/4(45) 11-13/16(300)
7/16(11)
Knock out hole for fresh air intake
9
1-1/4(32)6-11/32(161)
(7~8)
1/4~9/32
1-21/32(42) 7-1/16(179)
3-1/8(79)
1-1/2(38)1-1/2(38)
5-5/32(131)
(175)
1-13/16(46) 6-7/8 1/16(1)
3-11/16(86)
5-7/16(138)
6-3/4(171)
10-3/8(263)
13-7/8(352)20-21/32(525)
36-17/32(928)
2-3/4(70)
9-1/32(229)
(150) 23/32(18)
5-29/32
5-1/2(140) 2-3/4(70)
3-1/8(80)12-5/8(320)
3-7/16(87)
5/8(16)
6-3/16(157)
9-1/2(241)
7-15/16(201)
7-3/16(182)
Less than
26-25/32(680)
9-13/16(230)
39-3/8(1000) 11-13/16(300)
10-5/8(270)
or more
6
Allowing clearances
Less than
1/16(1)
(Gap to ceiling)
19-11/16(500)
or more
or more
Ceiling
Rear wall
10(254)
19-29/32(506) 2-7/32(56)
26-25/32(680)
36-5/32(918)
3-17/32(90)6-3/8(161)
Air intake
liquid 1/4F([6.35)
gas 1/2F([12.7)
(Drainage)
38-11/16(983)
3-25/32(96)
7-3/32(180)
8-9/32(210)
3-3/16(81)
39-5/8(1000)
35-19/32(904)
Air outlet
36-23/32(933) (Suspension bolt pitch)
4
5
81
(FRONT VIEW)
2
Electrical box
3
2
7
Electrical box
When electrical box is pulled down
Ceiling
Refrigerant-pipe connection(liquid pipe side/flared connection) Knock out hole for upper pipe arrangement Knock out hole for left drain pipe arrangement Knock out hole for wiring arrangement
Drainage pipe connection(1-1/32(26mm)I.D.) Drainage pipe connection(for the left arrangement) Knock out hole for left drain-piping arrangement Refrigerant-pipe connection(gas pipe side/flared connection)
1 2 3 4 5 6 7 8
NOTES. 1.Use M10 or W3/8 screw for anchor bolt. 2.Please be sure when installing the drain-up machine (option parts),refrigerant pipe will be only upper drain pipe arrangement.
Unit: in.(mm)
INDOOR UNIT
PCFY-P15NGMU-E
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10
9
11-13/16(300)
3-15/16(100)
2-1/8(54) 2-1/4(57)
7/16(11)
9
Knock out hole for fresh air intake
(6~7)
1/4~9/32
1-21/32(42) 7-1/16(179)
1-1/4(32)6-11/32(161)
20-21/32(525)
1-1/2(38)
3-1/8(79)
10-3/8(263)
6-3/4(171)
5-7/16(138)
3-3/8(86)
6-7/8
(175)
1-13/16(46)
5-5/32(131)
1/16(1)
1-1/2(38)
16-3/8(416)
48-5/8(1235)
2-3/4(70)
23/32(18)
5-1/2(140)
(150)
5-29/32
12-5/8(320) 3-1/8(80)
48-13/16(1240)
50-13/16(1290) 47-13/16(1214)
51-9/16(1310)
7-3/32(180)
8-9/32(210)
2-3/16(81) 3-25/32(96)
26-25/32(680) 2-7/32(56)19-29/32(506)
10(254)
3-17/32(90)6-3/8(161)
48-3/8(1228) 11-13/16(300)51-9/16(1310)10-5/8(270)
or more
26-25/32(680)
Less than
3-7/16(87)
5/8(16)
6-3/16(157)
or more
Ceiling
Rear wall
Allowing clearances
8
5
14
Ceiling
Electrical box (FRONT VIEW)
2
3
When electrical box is pulled down
6
NOTES. 1.Use M10 or W3/8 screw for anchor bolt. 2.Please be sure when installing the drain-up machine (option parts),refrigerant pipe will be only upper drain pipe arrangement.
(Suspension bolt pitch)
Air outlet
Air intake
2
7
9-1/32(229)
2-3/4(70)
Electrical box
gas 5/8F([15.88)
liquid 3/8F([9.52)
(Drainage)
7-3/16(182)
7/15/16(201)
9-1/2(241)
Refrigerant-pipe connection(liquid pipe side/flared connection) Knock out hole for upper pipe arrangement Knock out hole for left drain pipe arrangement Knock out hole for wiring arrangement
1 2 3 4 5 6 7 8
Drainage pipe connection(1-1/32(26mm)I.D.) Drainage pipe connection(for the left arrangement) Knock out hole for left drain-piping arrangement Refrigerant-pipe connection(gas pipe side/flared connection)
9-13/16(250)
19-11/16(500)
(Gap to ceiling)
or more
1/16(1)
Less than
Unit : in.(mm)
PCFY-P24NGMU-E
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