12. RoHS PARTS LIST···········································38
NOTE:
• This service manual describes technical data of the outdoor units.
Revision A:
• Compressor has been changed.
Previous
New
Model
SNB130FLDH
SNB130FLDH1
RoHS PARTS LIST number
E12 851 900
E12 939 900
Revision B:
• REFRIGERANT SYSTEM DIAGRAM has been changed.
• Oil separator has been added.
• Capillary tube has been added. ([1.8✕[0.6✕1000)
• MUZ-GB50VA-has been added.
• Check of outdoor thermistors(10-6.B) has been corrected.
E2
Revision C:
• RoHS PARTS LIST has been changed.
Revision D:
• RoHS PARTS LIST has been changed.
1
MUZ-GA50VA -➔ MUZ- GB50VA -
1. Refrigerant filling capacity has been changed.
2. Outdoor electronic control P.C. board has been changed.
MUZ-GB50VA -➔ MUZ- GB50VA -
1. Compressor has been changed. (SNB130FLDH1 ➔ SNB130FLEH1)
2. Outdoor electronic control P.C. board has been changed.
TECHNICAL CHANGES
E1E1
E2E1
2
2
Air inlet
Piping
Air outlet
(back and side)
Drain hose
Drain outlet
Outdoor model
Function
Power supply
Capacity Rated frequency(Min.-Max.)
Dehumidification
Air flow ✽1
(High/Low)
Power outlet
Running current ✽1
Power input ✽1
Power factor ✽1
Starting current ✽1
Compressor motor current ✽1
Fan motor current ✽1
Model
Output
Winding
resistance(at 20:)
Model
Winding
resistance(at 20:)
Dimensions WOHOD
Weight
Sound level ✽1
(High/Low)
Fan speed (High/Low)
Fan speed regulator
Refrigerant filling
capacity(R410A)
Refrigeration oil (Model)
kW
r/h
K /h
A
A
W
%
A
A
A
✽1
W
"
"
mm
kg
dB(A)
rpm
kg
Compressor
Fan
motor
Special
remarks
Capacity
Electrical
data
Coefficient of performance(C.O.P)
Single phase
230V,50Hz
20
97
7.46
0.32
SNB130FLDH or SNB130FLDH1
SNB130FLEH1
850
U-V 0.45 W-U 0.45
V-W 0.45
RC0J60-AA
BLK-WHT 15.2
WHT-RED 15.2
RED-BLK 15.2
840o850o330
53
2
1.50
NEO22
Cooling
5.0(0.9-5.8)
2.5
2,940/1,650
7.23
1,610
6.91
3.03
52/51
800/480
Heating
5.8(0.9-7.8)
—
2,940/2,210
7.43
1,660
7.11
3.41
55/53
800/620
MUZ-GB50VA
E1
E2
PART NAMES AND FUNCTIONS
MUZ-GB50VA
ACCESSORIES
MUZ-GB50VA
3
NOTE : Test conditions are based on ISO 5151.
SPECIFICATION
Cooling : IndoorDry-bulb temperature 27:Wet-bulb temperature 19:
Heating : IndoorDry-bulb temperature 20:Wet-bulb temperature 15:
Refrigerant piping length (one way): 5m
✽1 Measured under rated operating frequency
Outdoor Dry-bulb temperature 35:Wet-bulb temperature 24:
Outdoor Dry-bulb temperature 7: Wet-bulb temperature 6:
Drain socket
1
Drain cap [33
2
3
1
2
OUTDOOR UNIT
MICROPHONE
1m
Test conditions
Cooling : Dry-bulb temperature 35:
Wet-bulb temperature (24:)
Heating : Dry-bulb temperature 7:
Wet-bulb temperature 6:
COOLING
FUNCTION
SPL(dB(A))LINE
High
FAN SPEED
HEATING
52
55
90
80
70
60
50
40
30
20
10
63125250500100020004000 8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
BAND CENTER FREQUENCIES, Hz
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
OCTAVE BAND SOUND PRESSURE LEVEL, 0dB=20µPa
Specifications and rating conditions of main electric parts
Model
Item
Current transformer
Current transformer
Smoothing capacitor
Fuse
Fuse
Fuse
Expansion valve coil
Intelligent power module
Intelligent power module
Reactor
Power factor controller
Resistor
Resistor
Resistor
Solenoid coil relay
Terminal block
Terminal block
Relay
R.V. coil
MUZ-GB50VA
(CT1,2)
(CT61)
(CB1,2,3)
(F64)
(F801)
(F911)
(LEV)
(IPM)
(HC930)
(L)
(PFC)
(R64A,B)
(R937A,B)
(RS1~4)
(SSR61)
(TB1)
(TB2)
(X64)
(21S4)
ETQ19Z68AY
ETQ19Z53AY
560+ 450V
250V 2A
250V 3.15A
250V 1A
CAM-MD12ME
PS21244-A
PS21661-RZ
340µH 20A
PS51259-A
10" 10W
1.1" 2W 2%
0.04" 7W
TLP3506
3P
3P
G4A
LD30013
4
NOISE CRITERIA CURVES
MUZ-GB50VA
4
5
30-
35-
155
90
198
40
515
299
66
34
51
330
360
850
430
500
80
121
840
Open as a rule
500 mm or more if
the front and both
sides are open
100 mm or more
200 mm or more if
there are obstacles
to both sides
Open as a rule
500 mm or more if the back,
both sides and top are open
350 mm or more
100 mm or more
Service panel
Gas refrigerant
pipe joint
Refrigerant pipe
(flared) [12.7
NOTE : Refrigerant piping exceeding 7m requires additional refrigerant charge according to the calculation.
8
PERFORMANCE CURVES8
MUZ-GB50VA
The standard specifications apply only to the operation of the air conditioner under normal conditions. Since operating conditions vary according to the areas where these units are installed, the following information has been provided to clarify the
operating characteristics of the air conditioner under the conditions indicated by the performance curve.
(1) GUARANTEED VOLTAGE
198 ~ 264V, 50Hz
(2) AIR FLOW
Air flow should be set at MAX.
(3) MAIN READINGS
(1) Indoor intake air wet-bulb temperature :°C [WB]
(2) Indoor outlet air wet-bulb temperature :°C [WB]
(3) Outdoor intake air dry-bulb temperature :°C [DB]
(4) Total input:W
(5) Indoor intake air dry-bulb temperature :°C [DB]
(6) Outdoor intake air wet-bulb temperature :°C [WB]
(7) Total input :W
Indoor air wet/dry-bulb temperature difference on the left side of the following chart shows the difference between the
indoor intake air wet/dry-bulb temperature and the indoor outlet air wet/dry-bulb temperature for your reference at service.
How to measure the indoor air wet-bulb / dry-bulb temperature difference
1. Attach at least 2 sets of wet and dry-bulb thermometers to the indoor air intake as shown in the figure, and at least 2 sets
of wet and dry-bulb thermometers to the indoor air outlet. The thermometers must be attached to the position where air
speed is high.
2. Attach at least 2 sets of wet and dry-bulb thermometers to the outdoor air intake.
Cover the thermometers to prevent direct rays of the sun.
3. Check that the air filter is cleaned.
4. Open windows and doors of room.
5. Press the EMERGENCY OPERATION switch once (twice) to start the EMERGENCY COOL (HEAT) MODE.
6. When system stabilizes after more than 15 minutes, measure temperature and take an average temperature.
7. 10 minutes later, measure temperature again and check that the temperature does not change.
}
}
Cooling
Heating
INDOOR UNIT
Wet and dry-bulb
thermometers
8-1. Capacity and input curves
8.7
8.0
7.3
6.6
difference (:)
5.9
5.3
Indoor air Wet-bulb temperature
Indoor intake air Wet-bulb temperature (
Outdoor intake air Dry-bulb temperature (:)
OUTDOOR UNIT
Wet and dry-bulb
thermometers
)
:
:)
Indoor intake air W
Outdoor intake air Dry-bulb temperature (:)
et-bulb tem
perature (
MUZ-GB50VA
MSZ-GB50VA
at Rated frequency
9
Indoor air Dry-bulb temperature
difference (
:)
Indoor intake air Dry-bulb tem
perature (
:
)
Outdoor intake air Wet-bulb temperature (:)
Outdoor intake air Wet-bulb temperature (:)
Indoor intake air Dry-bulb temperature (
:)
24.1
22.3
20.4
18.5
16.7
14.8
13.0
11.1
at Rated frequency
MUZ-GB50VA
MSZ-GB50VA
NOTE:The above broken lines are for the heating operation without any
Capacity correction factors
Input correction factors
Input correction factors
Capacity correction factors
Correction of Cooling capacity
The operational frequency of compressor
Correction of Cooling total input
The operational frequency of compressor
Correction of Heating total input
The operational frequency of compressor
Correction of Heating capacity
The operational frequency of compressor
MUZ-GB50VA
(Hz)
050100150
0.0
0.5
1.0
1.5
(Hz)
(Hz)
(Hz)
050100150
0.0
0.5
1.0
1.5
050100150
0.0
0.5
1.0
1.5
050100150
0.0
0.5
1.0
1.5
050100150
0.0
0.5
1.0
1.5
2.0
frost and defrost operation.
8-2. Capacity and input correction by operational frequency of compressor
8-3. Test run operation (How to operate fixed-frequency operation)
1. Press EMERGENCY OPERATION switch to COOL or HEAT mode (COOL : Press once, HEAT : Press twice).
2. Test run operation starts and continues to operate for 30 minutes.
3. Compressor operates at rated frequency in COOL mode or 58Hz in HEAT mode.
4. Indoor fan operates at High speed.
5. After 30 minutes, test run operation finishes and EMERGENCY OPERATION starts (Operation frequency of compressor
varies).
6. To cancel test run operation (EMERGENCY OPERATION), press EMERGENCY OPERATION switch or any button on
remote controller.
10
8-4. OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
Ambient temperature(˚C)
Ambient humidity(%)
1832
152050256030
70 (%)
35(˚C)
Ambient temperature(˚C)
Ambient humidity(%)
1832
152050256030
70 (%)
35(˚C)
MUZ-GB50VA
(MPa [Gauge])
(kgf/F [Gauge])
Outdoor low pressure
Outdoor unit current(A)
4
5
6
7
8
0.5
0.6
0.7
0.8
0.9
1.0
5
6
7
8
9
10
Dry bulb temperature (°C)
Indoor
20.0
14.521
Outdoor
7
6
151220.0
14.5
Wet bulb temperature (°C)
05101520 25(˚C)
4
5
6
7
8
Outdoor unit current (A)
Ambient temperature(˚C)
MUZ-GB50VA
2
NOTE: The unit of pressure has been changed to MPa based on the international system of units (SI unit system).
The conversion factor is: 1(MPa [Gauge] = 10.2 (Kgf/