Guaranteed Voltage; Air Flow; Main Readings; How To Measure The Indoor Air Wet-Bulb/Dry-Bulb Temperature Difference - Mitsubishi Electric Mr.Slim MSZ09UN Service Manual

MSZ09UN MSZ12UN
MUZ09UN MUZ12UN
The standard data contained in these specifications apply only to the operation of the system 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 system under the conditions indicated by the performance curve.

(1) GUARANTEED VOLTAGE

INDOOR UNIT 103 ~ 127V 60Hz
OUTDOOR UNIT 198 ~ 253V 60Hz

(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 page 16 and 17 shows the difference
between the indoor intake air wet/dry-bulb temperature and the indoor outlet air wet/dry-bulb temperature for your refer-
ence 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.
INDOOR UNIT
:°F WB }
:°F WB
Cooling
:°F DB
:W
}
:°F DB
Heating
:°F WB
:W
15
OUTDOOR UNIT