Mitsubishi Electric MUZ-GB50VA, Service Manual

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12
Indoor air W
et-bulb temperature
difference (°C)
11.8
10.7
9.6
8.6
7.6
6.6
at Rated frequency
MUZ-GB50V
A
43
Input correction factors
0.8
0.9
1.0
1.1
1.2
1.3
-10 -5 0 5 10 15 20 25 30 35 40
Outdoor intake air Dry-bulb temperature (°C)
Total input (Cooling)
26
24
22
20
18
Indoor intake air Wet-bulb
temperature(°C)
NOTE : The above broken lines are for the heating operation without any frost and defrost operation.
8-2. CAPACITY AND INPUT CORRECTION BY OPERATIONAL FREQUENCY OF COMPRESSOR
Capacity correction factors
Input correction factors
Input correction factors
Capacity correction factors
Correction of Cooling capacity
The operational frequency
of compressor (Hz)
The operational frequency
of compressor (Hz)
The operational frequency
of compressor (Hz)
The operational frequency
of compressor (Hz)
Correction of Cooling total input Correction of Heating total input
Correction of Heating capacity
0 50 100 150
0.0
0.5
1.0
1.5
0 50 100 150
0.0
0.5
1.0
1.5
0 50 100 150
0.0
0.5
1.0
1.5
0 50 100 150
0.0
0.5
1.0
1.5
0 50 100 150
0.0
0.5
1.0
1.5
2.0
8-3. TEST RUN OPERATION (How to operate fixed-frequency operation)
1. Press EMERGENCY OPERATION switch to start 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 58 Hz 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 var-
ies).
6. To cancel test run operation (EMERGENCY OPERATION), press EMERGENCY OPERATION switch or any button on
remote controller.
Input correction factor
Indoor air Dry-bulb temperature
difference (°C)
33.6
31.0
28.4
25.8
23.3
20.7
18.1
15.5
12.9
10.3
at Rated frequency MUZ-GB50V
A
Outdoor intake air Wet-bulb temperature (°C)
-15 -10 -5 0 5 10 15
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
Heating capacity
15
20
26
Indoor intake air Dry-bulb temperature (
°C
)
Outdoor intake air Wet-bulb temperature (°C)
-15 -10 -5 0 5 10 15
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
Total input(Heating)
15
20
26
Indoor inta
ke air Dry-bulb temperature (
°C
)
Capacity correction factor