Air Flow; Main Readings; Capacity And The Input Curves; How To Measure The Indoor Air Wet-Bulb/Dry-Bulb Temperature Difference - Mitsubishi Electric MSH09TW Service Manual

MXZ30TN MXZ30TN2
The standard data contained in these 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 ~ 264V

(2) AIR FLOW

Air flow should be set at MAX.

(3) MAIN READINGS

(1) Indoor intake air wet-bulb temperature :
(2) Indoor outlet air wet-bulb temperature :
(3) Outdoor intake air dry-bulb temperature :
(4) Total input:
(5) Indoor intake air dry-bulb temperature :
(6) Outdoor intake air wet-bulb temperature :
(7) Total input :
Indoor air wet/dry-bulb temperature difference on the left side of the chart on this page 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. Compressor starts running at 33Hz (COOL) or 45Hz (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

6-8. CAPACITY AND THE INPUT CURVES

51.4 47.3 49.8
49.8 46.0 48.4
48.2 44.8 46.8
46.6 43.7 45.3
45.0 424 44.1
43.5 41.4 42.6
86.2 68.4 72.0
82.0 65.7 68.7
77.9 62.8 65.7
73.8 59.9 62.6
69.6 57.2 59.5
65.3 54.3 56.5
61.2 51.6 53.4
57.8 48.7 50.4
Wet-and dry-bulb
thermometers
51.4
49.6
48.0
46.6
45.0
43.5
80 85 90 95
74.7
71.4
68.2
64.8
61.5
58.3
55.0
51.6
30
14 20
}
°FWB
Cooling
°FWB
°FDB
W
}
°FDB
Heating
°FWB
W
OUTDOOR UNIT
79
75
72
68
64
100 105 110
80
59
68
79
40 60
50 14
33
Wet-and dry-bulb
thermometers
79
75
85 90 95 100 105
30 40
20 50
72
68
64
110
79
68
59
60