68
09 class
(36Hz)
15 class
(77Hz)
12 class
(50Hz)
Indoor unit class
(Inverter output
frequency)
Indoor air WB temperature
difference (degree)
15.3
14.0
13.0
11.9
10.6
9.5
8.6
18.2
16.7
15.3
14.0
12.6
11.3
10.1
21.8
20.0
18.4
16.6
14.9
13.5
11.9
Cooling capacity
(at Rated frequency)
0.9
1.0
1.1
1.2
1.3
1.4
1.5
14
23
32
41
50
59
68
77
86
95
104
113
Outdoor intake air Dry-bulb temperature(°F)
Capacity correction factors
79
75
68
64
72
Indoor intake air Wet-bulb
temperature(°F)
9-2. CAPACITY AND THE INPUT CURVES
MXZ-2A20NA MXZ-2A20NA -
1
MXZ-2A20NA -
2
MXZ-2A20NA MXZ-2A20NA -
1
MXZ-2A20NA -
2
MXZ-3A30NA MXZ-3A30NA -
1
MXZ-4A36NA
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 pro-
vided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve.
(1) GUARANTEED VOLTAGE
198 ~ 253 V 60 Hz
(2) AIR FLOW
Air flow should be set at MAX.
(3) MAIN READINGS
(1) Indoor intake air wet-bulb temperature :
°FWB
(2) Indoor outlet air wet-bulb temperature :
°FWB
(3) Outdoor intake air dry-bulb temperature :
°FDB
(4)
Total
input:
W
(5) Indoor intake air dry-bulb temperature :
°FDB
(6) Outdoor intake air wet-bulb temperature :
°FWB
(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.
}
}
Cooling
Heating
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. Compressor starts running at 33 Hz (COOL) or 45 Hz (HEAT). The frequency at each operation mode is fixed.
7. When system stabilizes after more than 15 minutes, measure temperature and take an average temperature.
8. 10 minutes later, measure temperature again and check that the temperature does not change.
INDOOR UNIT
OUTDOOR UNIT
Wet-and dry-bulb
thermometers
Wet-and dry-bulb
thermometers
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