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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 inlet 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 inlet.
Cover the thermometers to prevent direct rays of the sun.
3. Check that the air filter is cleaned.
4. Open windows and doors of the 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
Air out
Air in
FRONT VIEW
8.7
11.1
8.0
10.2
7.3
9.2
6.6
8.3
5.9
7.5
5.3
6.6
18.6
23.4
17.2
21.6
15.7
19.8
14.3
18.0
12.9
16.2
11.5
14.4
10.0
12.6
8.6
10.8
OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
COOL operation
1 Both indoor and outdoor units are under the same temperature/humidity condition.
Dry Bulb temperature (
20
25
30
Wet and dry-bulb
thermometers
14.7
13.4
12.1
10.9
9.7
8.5
31.8
29.3
26.9
24.4
22.0
19.5
17.1
14.7
)
Relative humidity (
˚C
)
%
50
60
70
15
OUTDOOR UNIT
Wet and dry-bulb
thermometers
BACK VIEW
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