AY-A126E
AE-A126E
MICROCOMPUTER CONTROL SYSTEM
1. Temperature control characteristic1-3HEAT operation
1-1COOL operationIn the OHEAT� mode, the thermostat circuit
In the OCOOL� mode, the thermostat circuit isis controlled by six thermostat lines (H01 thru
controlled by four thermostat lines (C1 thru C4).H4).
40
34.5C1H01
38H02
33.5C236H1
35
32.5C3H2
33
H3
31.5C431
H4
26
20.5
24
19.522
Room temperature (uC)
21
18.5Room temperature(uC)
19
17.517
1832
1832
Preset temperature (uC)
Preset temperature (uC)
Figure Y-1Figure Y-3
1-2DRY operation2. Operation modes
In the ODRY� mode, the thermostat circuit is2-1COOL operation
controlled by three thermostat lines (D1 thru D3).The compressor turns on or off, at the thermostat
lines C3 and C4. The outdoor fan motor is also
controlled with the compressor.
33.5D1
32.5D2
States 1 & 3 : Compressor ON
State 2 : Compressor OFF
31.5D3
C3
C4
3
1
19.5
18.5
Room temperature(uC)
Room
17.5Room temperaturetemperature
transition
2
1832
Preset temperature (uC)
Preset temperature
Figure Y-2Figure Y-4
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