Mitsubishi Heavy Industries SRK18YLV-S1 User manual

RESIDENTIAL AIR-CONDITIONING
TECHNICAL MANUAL & PARTS LIST
INVERTER WALL MOUNTED TYPE
RESIDENTIAL AIR-CONDITIONER
(Split system, air cooled cooling only type)
SRK18YLV-S1
Manual No.'16•SRK-T-192

TECHNICAL MANUAL

-
1
-
'16 • SRK-T-192
-
1
-
ht43,5
CONTENTS
1. SPECIFICATIONS ........................................................................................ 3
(2) Outdoor unit ......................................................................................... 5
(3) Wireless remote control ........................................................................ 6
............................................................................ 4
(1) Indoor unit ............................................................................................ 4
2. EXTERIOR DIMENSIONS
3. ELECTRICAL WIRING ................................................................................... 7
(1) Indoor unit .............................................................................................. 7
(2) Outdoor unit ........................................................................................... 8
.......................................................... 10
5. RANGE OF USAGE & LIMITATIONS
4. PIPING SYSTEM ........................................................................................... 9
.................................................................................. 12
6. APPLICATION DATA
7. OUTLINE OF OPERATION CONTROL BY MICROCOMPUTER ............... 21
(6) 3D auto operation .............................................................................. 24
5JNFSPQFSBUJPO .................................................................................. 25
....................................................... 22
(1) Operation control function by remote control
(5) Flap and louver control ...................................................................... 23
(4) Custom cord switching procedure
......................................................................... 22(3) Auto restart function
(2) Unit ON/OFF button ........................................................................... 22
....................................... 21
(8) Installation location setting .................................................................. 25
(11) Outline of automatic operation ........................................................... 27
0VUMJOFPGEFIVNJEJGZJOH%3:PQFSBUJPO ........................................... 26
0VUMJOFPGDPPMJOHPQFSBUJPO ............................................................... 26
(12) Protective control function ................................................................... 28
..................... 31
.................................................................................. 30
5SPVCMFTIPPUJOHQSPDFEVSF*GUIFBJSDPOEJUJPOFSSVOT
5SPVCMFTIPPUJOHQSPDFEVSF
*GUIFBJSDPOEJUJPOFSEPFTOPUSVOBUBMM
........ 30
(1) Cautions ............................................................................................. 30
(2) Items to check before troubleshooting ................................................. 30
4FMGEJBHOPTJTUBCMF ............................................................................. 32
4FSWJDFNPEF5SPVCMFNPEFBDDFTTGVODUJPO ................................... 33
(7) Inspection procedures corresponding to detail of trouble .................... 41
8. MAINTENANCE DATA

-
2
-
'16 • SRK-T-192
-
2
-
gs32+4
(10) How to make sure of wireless remote control 
(11) Outdoor unit inspection points 

Phenomenon observed after shortcircuit, wire breakage on sensor 
(9) Checking the indoor electrical equipment 
■How to read the model name
Example: SRK 18 Y
Series code
Inverter type
Product capacity
Model name SRK : Wall mounted type
SRC : Outdoor unit
LV-S1

-
3
-
'16 • SRK-T-192
Model
Item
SRK18YLV-S1
Indoor unit SRK18YLV-S1 Outdoor unit SRC18YLV-S1
Cooling capacity (1) W 5000 (1600 (Min.) ~ 5500 (Max.))
Power source 1 Phase, 220-240V, 50Hz
Operation
data
Power
consumption Cooling kW 1.56 (0.40
~ 2.20)
Running
current Cooling A7.5
Inrush current 7.5
COP Cooling 3.21
Noise
level Cooling Sound level dB(A) Hi : 49 Me : 37 Lo : 28 55
Power level dB 63 67
Exterior dimensions (Height x Width x Depth) mm 268 x 790 x 213 595 x 780 (+62) x 290
Exterior appearance
(Munsell color)
Fine snow
(8.0Y 9.3/0.1) near equivalent
Stucco white
(4.2Y 7.5/1.1) near equivalent
Net weight kg 9.5 35
Refrigerant
equipment
Compressor type & Q'ty — 5RS132XAB21 (Rotary type) x 1
Motor (Starting method) kW — 1.50 (Line starting)
Refrigerant oil 0.37 (FV50S)
Refrigerant (4) kg R410A 1.30 (Pre-charged up to the piping length of 15m)
Heat exchanger Slit fins & inner grooved tubing M fins & inner grooved tubing
Refrigerant control Capillary tubes + Electronic expansion valve
Deice control Microcomputer control
Air handling
equipment
Fan type & Q'ty Tangential fan x 1 Propeller fan x 1
Motor W 38 24
Air flow Cooling m3/ min Hi : 12.0 Me : 7.6 Lo : 4.7 38
Fresh air intake Not possible —
Air filter, Quality / Quantity Polypropylene net (washable) x 2 —
Shock & vibration absorber — Cushion rubber (for compressor)
Operation
control
Operation switch Wireless remote control —
Room temperature control Microcomputer thermostat —
Operation Display RUN : Green, TIMER : Yellow, HI POWER : Green,
3D AUTO : Green
Safety devices
Compressor overheat protection, Overcurrent protection,
Frost protection, Serial signal error protection, Fan motor error protection,
Cooling overload protection, Lock rotor protection
Installation
data
Refrigerant piping size (O.D) mm Liquid line :φ6.35 (1/4") Gas line :φ12.7 (1/2")
Connecting method Flare connecting
Attached length of piping m Liquid line : 0.4
Gas line : 0.33 —
Insulation for piping Necessary (Both sides), independent
Refrigerant line (one way) length
m
Max. 25
Vertical height difference between
outdoor unit and indoor unit
Max. 15 (Outdoor unit is higher)
Max. 15 (Outdoor unit is lower)
Drain hose Connectable (VP 16) —
Recommended breaker size A 16
Connection wiring Size x Core number 1.5mm2x 4 cores (Including earth cable)
Connecting method Terminal block (Screw fixing type)
Accessories (included) Mounting kit
Option parts —
Adapted to RoHS directive
Note (1) The data are measured at the following conditions.
Item
Operation
Indoor air temperature Outdoor air temperature Standards
DB WB DB WB
Cooling 27˚C 19˚C 35˚C 24˚C ISO-T1 , JIS C 9612
(2) This air-conditioner is manufactured and tested in conformity with the ISO.
(3) The operation data are applied to the 220V districts respectively.
(4) The refrigerant quantity to be charged includes the refrigerant in 15m connecting piping.
(Purging is not required even for the short piping.)
The pipe length is 7.5m.
1. SPECIFICATIONS

-
4
-
'16 • SRK-T-192
2. EXTERIOR DIMENSIONS
(1) Indoor unit
Model SRK18YLV-S1
Wireless remote control
Outlet for down piping
㸦Refer to the above view㸧
Space for installation and service when viewing from the front
D A
B
EC
Hole on wall for right rear piping Hole on wall for left rear piping Gas piping Outlet for wiring Drain hose Liquid piping
F E C D B
Symbol
A
㸦ȭ65㸧
VP16
ȭ6.35㸦1㸭4"㸧㸦Flare㸧
Content
㸦ȭ65㸧
Outlet for piping㸦on both side㸧
G
ȭ12.7㸦1㸭2"㸧㸦Flare㸧
Note㸦1㸧The model name label is attached
ࠉࠉࠉon the underside of the panel.
60
150
17.3
788
2760
45
60
45
790
268
17.5
200 39.3
43.244.5
102.5 585 102.5
206.5 450 133.5
138 450 202
44.5
7.5252.28.3
㸦Service space㸧
65 㸦Service space㸧
15
50
㸦
Service space
㸧
100 㸦Service space㸧
53.5
380.6
448.6
520
53.5
Installation plate
Unit
Unit:mm
Terminal block
G
F
9
213 3
45
60

-
5
-
'16 • SRK-T-192
Content
C Pipe/ cable draw-out hole
E Anchor bolt hole
Drain discharge hole
Symbol
B
A Service valve connection
（
igas side
）
M10×4places
φ
20×2places
Service valve connection
（
iliquid side
）
D
φ12.7（1／2"）（Flare）
φ6.35（1／4"）（Flare）
Unit:mm
Notes （1）It must not be surrounded by walls on the four sides. （2）The unit must be fixed with anchor bolts. An anchor bolt must not protrude more than 15mm. （3）Where the unit is subject to strong winds, lay it in such a direction that the blower outlet faces perpendicularly to the dominant wind direction. （4）Leave 1m or more space above the unit. （5）A wall in front of the blower outlet must not exceed the units height. （6）The model name label is attached on the lower right corner of the front panel.
40°
40°
138.4 33.5
Terminal block
C
B
A
97.7 42.5
15.8
595
63.4
390.6 390.6
69.4
111.6 510 158.4
780 61.9
17.9
14.8 312.5 24.3
351.6
50.6
12
290
E
D
L2
Intake
Outlet
Intake L3
L1
Minimum installation space
Service space
( )
L4
L2 L3 L4 L1
100 100 250
Open
ＩＩＩ
Open
250
80
280
ＩＩＩ
280
Open
80 75
Examples of
Dimensions
installation
ＩＶ
180
Open
80
Open
(2) Outdoor unit
Model SRC18YLV-S1

-
6
-
'16 • SRK-T-192
(3) Wireless remote control
Unit: mm
60 17.3
150

-
7
-
'16 • SRK-T-192
3. ELECTRICAL WIRING
(1) Indoor unit
Model SRK18YLV-S1
BLACK
GYELLOW／GREEN
JRED
BLOCK
TERMINAL
YELLOW／GREEN
RED BLACK
3
2／N
WHITE
VARISTOR
N
TO OUTDOOR UNIT
1
250V 3.15A
FUSE
L
EXCHANGER
HEAT
WHITE
U
SENSOR
ROOM TEMP.
R-AMP
WIRELESS
DISPLAY
YELLOW WHITE
MOTOR
FAN
6
SENSOR HEAT EXCH.
BOARD
PRINTED CIRCUIT
CNGCNE
CNU
1 3 4 5
RED BLACK BLUE
BACK UP SW
8 2 2
M
2
SENSOR HUMIDITY
CNF
BOX
CONTROL
CNM
FLAP
MOTOR
LOUVER
（L）MOTOR
MOTOR
LOUVER
（R）
5 5 5
CNXCNY
MMM
t゜ t゜