26
w
At Intermediate compressor Speed
=("Cooling rated compressor speed" - "minimum compressor speed") / 3 + "minimum compressor speed".
1
Function
Cooling
Heating
"A" Cooling Steady State
at rated compressor Speed
"B-2" Cooling Steady State
at rated compressor Speed
"B-1" Cooling Steady State
at minimum compressor Speed
Low ambient Cooling Steady State
at minimum compressor Speed
Intermediate Cooling Steady State
At Intermediate compressor Speed
w
Standard Rating-Heating
at rated compressor Speed
Low temperature Heating
at rated compressor Speed
Max. temperature Heating
at minimum compressor Speed
High temperature Heating
at minimum compressor Speed
Frost Accumulation
at rated compressor Speed
Frost Accumulation
at Intermediate compressor Speed
w
DB (˚F)
80
80
80
80
80
70
70
70
70
70
70
WB (˚F)
67
67
67
67
67
60
60
60
60
60
60
Indoor
DB (˚F)
95
82
82
67
87
47
17
62
47
35
35
WB (˚F)
(75)
(65)
(65)
(53.5)
(69)
43
15
56.5
43
33
33
Outdoor
Condition
Intake air
temperature
MXZ-3A30NA MXZ-3A30NA -
MXZ-2A20NA MXZ-2A20NA - MXZ-3A30NA MXZ-3A30NA -
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 ~ 253V 60Hz
(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.
1
1
}
}
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 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
OUTDOOR UNIT
Wet-and dry-bulb
thermometers
Wet-and dry-bulb
thermometers
OB444B--1.qxp 07.4.17 4:28 PM Page 26
Summary of Contents for MXZ-2A20NA-1
Page 15: ...15 WIRING DIAGRAM 6 MXZ 2A20NA OB444B 1 qxp 07 4 17 4 27 PM Page 15 ...
Page 16: ...16 MXZ 2A20NA 1 OB444B 1 qxp 07 4 17 4 28 PM Page 16 ...
Page 17: ...17 MXZ 3A30NA OB444B 1 qxp 07 4 17 4 28 PM Page 17 ...
Page 18: ...18 MXZ 3A30NA 1 OB444B 1 qxp 07 4 17 4 28 PM Page 18 ...
