11
8
PERFORMANCE CURVES
The standard specifications apply only to the operation of the air conditioner under normal conditions. Since operating condi-
tions vary according to the areas where these units are installed, the following information has been provided to clarify the
operating characteristics of the air conditioner under the conditions indicated by the performance curve.
(1) GUARANTEED VOLTAGE
198 ~ 264 V, 50 Hz
(2) AIR FLOW
Air flow should be set at MAX.
(3) MAIN READINGS
(1) Indoor intake air wet-bulb temperature :
°C WB
(2) Indoor outlet air wet-bulb temperature :
°C WB
(3) Outdoor intake air dry-bulb temperature :
°C DB
(4) Total input:
W
(5) Indoor intake air dry-bulb temperature :
°C DB
(6) Outdoor intake air wet-bulb temperature :
°C WB
(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. 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.
MUZ-FD25VA
MUZ-FD35VA
MUZ-FD25VAH
MUZ-FD35VAH
INDOOR UNIT
OUTDOOR UNIT
Wet and dry-bulb
thermometers
Wet and dry-bulb
thermometers
Cooling capacity
0.9
1.0
1.1
1.2
1.3
1.4
1.5
-10
-5
0
5
10
15
20
25
30
35
40
45
Outdoor intake air Dry-bulb temperature(
:
)
Capacit
y
correct
ion fact
ors
26
24
20
18
22
Indoor intake air Wet-bulb
temperature(
:
)
MUZ-FD35VA
MUZ-FD35VAH
at Rated frequency
at Rated frequency
Indoor air W
et-bulb temperature
difference (
:
)
MUZ-FD25VA
MUZ-FD25VAH
6.5
6.0
5.5
5.1
4.6
4.1
3.7
9.1
8.4
7.7
7.0
6.3
5.7
5.1
8-1. Capacity and input curves
OBH489--1.qxp 07.8.9 3:33 PM Page 11
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