TECHNICAL DATA
& SERVICE MANUAL
SPLIT SYSTEM AIR CONDITIONER
Model No. Product Code No.
SPW-UMR74EXH56
SPW-UMR94EXH56 854.0.2264
SPW-UMR124EXH56
SPW-UMR164EXH56
SPW-UMR184EXH56 854.0.2266
SPW-UMR224EXH56 854.0.2267
854.0.2263
854.0.2265
854.0.2301
0.8180.439.0 June 2005
SM940046
IMPORTANT!
Please read before installation
This air conditioning system meets strict safety and operating
standards.
For the installer or service person, it is important to install or
service the system so that it operates safely and efficiently.
For safe installation and trouble-free operation, you must:
• Carefully read this instruction booklet before beginning.
• Follow each installation or repair step exactly as shown.
• Observe all local, state and national electrical codes.
• Pay close attention to all warning and caution notices given in
this manual.
•The unit must be supplied with a dedicated electrical line.
WARNING
This symbol refers to a hazard or unsafe practice which can result
in severe personal injury or death.
CAUTION
This symbol refers to a hazard or unsafe practice which can result
in personal injury or product or property damage.
If necessary, get help
These instructions are all you need for most installation sites and
maintenance conditions.
If you require help for a special problem, contact our sale/service
outlet or your certified dealer for additional instructions.
In case of improper installation
The manufacturer shall in no way be responsible for improper
installation or maintenance service, including failure to follow the
instructions in this document.
SPECIAL PRECAUTIONS
• During installation, connect before the refrigerant system and
then the wiring one; proceed in the reverse orden when removing
the units.
WARNING
ELECTRICAL SHOCK CAN CAUSE SEVERE
PERSONAL INJURY OR DEATH. ONLY QUALIFIED,
EXPERIENCED ELECTRICIANS SHOULD ATTEMPT
TO WIRE THIS SYSTEM.
When wiring
• Ground the unit following local electrical codes.
• The Yellow/Green wire cannot be used for any connection
different from the ground connection.
• Connect all wiring tightly. Loose wiring may cause overheating
at connection points and a possible fire hazard.
• Do not allow wiring to touch the refrigerant tubing, compressor,
or any moving parts of the fan.
• Do not use multi-core cable when wiring the power supply and
control lines. Use separate cables for each type of line.
When transporting
Be careful when picking up and moving the indoor and outdoor
units. Get a partner to help, and bend your knees when lifting to
reduce strain on your back. Sharp edges or thin aluminium fins on
the air conditioner can cut your fingers.
When installing...
… In a ceiling
Make sure the ceiling is strong enough to hold the unit-weight.
It may be necessary to build a strong wooden or metal frame to
provide added support.
… In a room
Properly insulate any tubing run inside a room to prevent
"sweating", which can cause dripping and water damage to
walls and floors.
... In moist or uneven locations
Use a raised concrete base to provide a solid level foundation
for the outdoor unit. This prevents damage and abnormal
vibrations.
... In area with strong winds
Securely anchor the outdoor unit down with bolts and a metal
frame. Provide a suitable air baffle.
... In a snowy area (for heat pump-type systems)
Install the outdoor unit on a raised platform that is higher then
drifting snow. Provide snow vents.
When connecting refrigerant tubing
• Keep all tubing runs as short as possible.
• Use the flare method for connecting tubing.
• Apply refrigerant lubricant to the matching surfaces of the flare
and union tubes before connecting them; screw by hand and
then tighten the nut with a torque wrench for a leak-free
connection.
• Check carefully for leaks before starting the test run.
NOTE:
Depending on the system type, liquid and gas lines may be either
narrow or wide. Therefore, to avoid confusion, the refrigerant
tubing for your particular model is specified as narrow tube for
liquid, wide tube for gas.
• Do not supply power to the unit until all wiring and tubing are
completed or reconnected and checked, to ensure the grounding.
• Highly dangerous electrical voltages are used in this system.
Carefully refer to the wiring diagram and these instructions when
wiring.
Improper connections and inadequate grounding can cause
accidental injury and death.
When servicing
• Turn the power OFF at the main power board before opening
the unit to check or repair electrical parts and wiring.
• Keep your fingers and clothing away from any moving parts.
• Clean up the site after the work, remembering to check that no
metal scraps or bits of wiring have been left inside the unit being
serviced.
• Ventilate the room during the installation or test
system; make sure that, after the installation, no gas leaks are
present, because this could produce toxic gas and dangerous
if in contact with flames or heat-sources.
ing the refrigeration
2
Table of Contents
Page
1. SPECIFICATIONS
1-1 Unit specifications 4
1-2 Major Component specifications 7
1-3 Other Component specifications 10
2. DIMENSIONAL DATA
3. ELECTRICAL DATA
3-1 Electric Wiring Diagram 13
3-2 Control PCB switches and functions 14
4. FUNCTION
4-1 Room Temperature Control 15
4-2 Automatic control for heating and cooling 16
5. REPLACING PCB
5-1 Replacing PCB 17
5-2 How to replace PCB 18
5-3 How to replace EEPROM with EEPROM included in PCB service pack 19
5-4 Table of setting 21
4
11
13
15
17
6. SERVICING AND MAINTENANCE FUNCTIONS
6-1 Indoor unit refrigerant noise countermeasures 22
6-2 Outdoor unit noise countermeasures: EEPROM 05 22
7. TROUBLE DIAGNOSIS
7-1 Contents of remote controller switch alarm display 23
7-2 Outdoor unit control panel led display 25
7-3 Trouble indications and inspection points 26
7-4 Remote controller servicing functions 28
7-5 Super W-Multi alarm codes
7-6 Inspection of parts 35
22
23
29
3
1. SPECIFICATIONS
1-1 Unit Specifications
SPW-UMR74/94/124EXH56
Power source
oltage ratin
Performance
Capacity
Air circulation (High/Med./Low) m³/h
Features
Controls/Temperature controls
Remote Controller (Option) wired
Fan speed
Air Filter
Sound pressure level (*) high/med/low dB(A)
Refrigerant tubing connections
Refrigerant Narrow tube mm(in.)
tube diameter Wide tube mm(in.)
Refrigerant
Refrigerant control
Dimensions & Wei
Dimensions Height mm
Package dimensions Height mm
Weight Net kg
ht
Width mm
Depth mm
Width mm
Depth mm
Volume m3
Shipping kg
wireless
220 - 240V ~ 50Hz
230V
Cooling Heating
See catalogue with the requested matching
600/510/440
Microprocessor/ I.C. thermostat
RCS-SH80AG / RCS-KR1AG
RCS-BH80AG.WL
3 and Auto
Washable
54/52/49
Flare type
6,35 (1/4)
12,7 (1/2)
R410A
Electronic expansion valve
266
571
852
365
745
1086
0,3
30,0
34
DATA SUBJECT TO CHANGE WITHOUT NOTICE
(*)
Power noise level measured at operating conditions (5mmH20 external static pressure)
4
SPW-UMR164/184EXH56
Power source
oltage ratin
Performance
Capacity
Air circulation (High/Med./Low) m³/h
Features
Controls/Temperature controls
Remote Controller (Option) wired
Fan speed
Air Filter
Sound pressure level (*) high/med/low dB(A)
Refrigerant tubing connections
Refrigerant Narrow tube mm(in.)
tube diameter Wide tube mm(in.)
Refrigerant
Refrigerant control
Dimensions & Wei
Dimensions Height mm
Package dimensions Height mm
Weight Net kg
ht
Width mm
Depth mm
Width mm
Depth mm
Volume m3
Shipping kg
wireless
220 - 240V ~ 50Hz
230V
Cooling Heating
See catalogue with the requested matching
875/600/400
Microprocessor/ I.C. thermostat
RCS-SH80AG / RCS-KR1AG
RCS-BH80AG.WL
3 and Auto
Washable
54/47/42
Flare type
6,35 (1/4)
12,7 (1/2)
R410A
Electronic expansion valve
266
571
1058
365
745
1292
0,35
35
39
DATA SUBJECT TO CHANGE WITHOUT NOTICE
5
SPW-UMR224EXH56
Power source
oltage ratin
Performance
Capacity
Air circulation (High/Med./Low) m³/h
Features
Controls/Temperature controls
Remote Controller (Option) wired
Fan speed
Air Filter
Sound pressure level (*) high/med/low dB(A)
Refrigerant tubing connections
Refrigerant Narrow tube mm(in.)
tube diameter Wide tube mm(in.)
Refrigerant
Refrigerant control
Dimensions & Wei
Dimensions Height mm
Package dimensions Height mm
Weight Net kg
ht
Width mm
Depth mm
Width mm
Depth mm
Volume m3
Shipping kg
wireless
220 - 240V ~ 50Hz
230V
Cooling Heating
See catalogue with the requested matching
1000/700/600
Microprocessor/ I.C. thermostat
RCS-SH80AG / RCS-KR1AG
RCS-BH80AG.WL
3 and Auto
Washable
57/49/46
Flare type
9,52 (3/8)
15,88 (5/8)
R410A
Electronic expansion valve
266
571
1058
365
745
1292
0,35
35
39
DATA SUBJECT TO CHANGE WITHOUT NOTICE
6
1-2 Major Component Specifications
SPW-XMR74/94/124EXH56
Controller PCB
Part No.
Controls
Fan & Fan Motor
Type
Q'ty ……. Dia. and lenght mm
Fan motor model…Q'ty
No. Of poles…rpm (230 V, High)
Running Amps A
Power input W
Coil resistance (Ambient temp. 20 °C )
Safety devices Type
Operating temp. Open °C
CR-CRP50A-B
Microprocessor
Centrifugal fan
2…. Ø 160 / L 240
3RGB-CO-45-30 5V/1….1
4 … 1060
0,45
110
BLU-BRN: 95
BRN-BLK: 37
BLK-GRY: 15
GRY-VLT: 15
WLT-RED: 30
RED-YEL: 101
Internal thermal protector - 7AM 037 A 5
150 ± 5K
Run capacitor µF
Electronic expansion valve
Coil
Valve body
Heat Exch. Coil
Coil
Rows
Fin pitch mm
face area m2
1,8
VAC
Aluminium plate fin / Copper tube
DATA SUBJECT TO CHANGE WITHOUT NOTICE
450
UKV-U030E
UKV-18D31
2
1,6
0,126
7
SPW-XMR164/184EXH56
Controller PCB
Part No.
Controls
Fan & Fan Motor
Type
Q'ty ……. Dia. and lenght mm
Fan motor model…Q'ty
No. Of poles…rpm (230 V, High)
Running Amps A
Power input W
Coil resistance (Ambient temp. 20 °C )
Safety devices Type
Operating temp. Open °C
Close °C
Run capacitor µF
VAC
CR-CRP50A-B
Microprocessor
Centrifugal fan
2…. Ø 160 / L 240
3FGB-CO-65-38 5V/1….1
4 … 1106
0,6
138
BLU-BRN: 68
BRN-BLK: 9
BLK-GRY: 36
GRY-VLT: 18
VLT-RED: 18
BRN-YEL: 105
Internal thermal protector - 7AM 037 A 5
150 ± 5K
2,0
450
Electronic expansion valve
Coil
Valve body
Heat Exch. Coil
Coil
Rows
Fin pitch mm
face area m2
UKV-U030E
UKV-25D32
Aluminium plate fin / Copper tube
3
1,6
0,168
DATA SUBJECT TO CHANGE WITHOUT NOTICE
8
SPW-XMR224EXH56
Controller PCB
Part No.
Controls
Fan & Fan Motor
Type
Q'ty ……. Dia. and lenght mm
Fan motor model…Q'ty
No. Of poles…rpm (230 V, High)
Running Amps A
Power input W
Coil resistance (Ambient temp. 20 °C )
Safety devices Type
Operating temp. Open °C
Close °C
Run capacitor µF
VAC
CR-CRP50A-B
Microprocessor
Centrifugal fan
2…. Ø 160 / L 240
3FGB-CO-65-38 5V/1….1
4 … 1161
0,57
136
BLU-BRN: 68
BRN-BLK: 9
BLK-GRY: 36
GRY-VLT: 18
VLT-RED: 18
BRN-YEL: 105
Internal thermal protector - 7AM 037 A 5
150 ± 5K
3
450
Electronic expansion valve
Coil
Valve body
Heat Exch. Coil
Coil
Rows
Fin pitch mm
face area m2
UKV-U030E
UKV-25D32
Aluminium plate fin / Copper tube
3
1,6
0,168
DATA SUBJECT TO CHANGE WITHOUT NOTICE
9
1-3 Other Component Specifications
Trasformer
Rating Primary
Secondary 1
Secondary 2
Secondary 3
Thermal cut-off temp.
Thermistor
Resistance
Thermistor ( Coil sensor E3
Resistance
Thermistor ( Room sensor TA, TF/BL
Resistance
Drain pump
Model
Rating Voltage
Flow rate
Safet
Model
Coil sensor E1, E2
Input
float switch
ATR-IIJ225A
VAC 230V, 50Hz
AC 20V - 0.2A
AC 14V - 0.3A
AC 10,2V - 1.4A
136°C
PBC-41E-S26
k
k
k
0 °C 15,0 ± 5%
PBC-41E-S42-2
0 °C 15,0 ± 4,42%
DHKTEC-35-S85N
25 °C 5,0 ± 4%
PC 309564003
220/240V - 50Hz
14W
0,4 l/min
BI 1300 2725
Contact rating
230V AC/DC - 0,5A
10